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Review
The JAK attack: transforming the management of ulcerative colitis in India
Arshdeep Singh, Arshia Bhardwaj, Vandana Midha, Ajit Sood
Received July 26, 2025  Accepted September 8, 2025  Published online January 2, 2026  
DOI: https://doi.org/10.5217/ir.2025.00153    [Epub ahead of print]
AbstractAbstract PDF
Inflammatory bowel disease is increasingly recognized as a significant clinical entity in India, reflecting the country’s ongoing epidemiological transition. With a rising incidence and an expanding disease spectrum, the limitations of conventional therapeutic agents, such as corticosteroids and thiopurines, have become increasingly evident. This review examines the transformative role of Janus kinase inhibitors, particularly tofacitinib, in redefining therapeutic goals and bridging the gap between medical innovation and real-world implementation in resource-limited settings. Tofacitinib represents a pivotal advancement in the therapeutic landscape of ulcerative colitis (UC) in India, offering the advantages of oral administration, rapid onset of action, predictable pharmacokinetics, and cost-effective generic formulations–thereby overcoming several longstanding barriers to the adoption of advanced therapies. Accumulating real-world evidence from India supports its clinical utility across various phenotypes of UC, including corticosteroid-dependent or refractory disease, acute severe UC, ulcerative proctitis, elderly-onset UC, and in achieving deeper remission endpoints such as histologic healing. Furthermore, its incorporation into routine clinical practice has contributed to a measurable reduction in corticosteroid reliance, thereby aligning treatment strategies with international standards of care. By combining efficacy, safety, accessibility, and ease of use, tofacitinib has catalyzed a paradigm shift in the management of UC in the Indian context.
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Original Articles
Orofacial granulomatosis in pediatric Crohn’s disease: clinical outcomes and genetic background in the era of biologics: a retrospective study in Japan
Ryusuke Nambu, Takeo Naito, Mei Haruyama, Junichi Hosokawa, Hirotaka Shimizu, Ichiro Takeuchi, Shin-ichiro Hagiwara, Tatsuki Mizuochi, Yugo Takaki, Takashi Ishige, Takuya Nishizawa, Takahiro Kudo, Natsuki Ito, Yosuke Kawai, Yoichi Kakuta, Masao Nagasaki, Toshiaki Shimizu, Itaru Iwama, Katsuhiro Arai
Received June 18, 2025  Accepted September 1, 2025  Published online January 2, 2026  
DOI: https://doi.org/10.5217/ir.2025.00109    [Epub ahead of print]
AbstractAbstract PDF
Background/Aims
Occasionally, pediatric Crohn’s disease (CD) may develop after diagnosis of orofacial granulomatosis (OFG), which is characterized by chronic granulomatous lesions of the oral mucosa, lips, and perioral area. This study aimed to clarify clinical characteristics, treatment responses, and potential genetic contributors in pediatric patients with CD complicating OFG.
Methods
We studied pediatric patients with CD complicating OFG who were treated from 2013 to 2022 at 7 Japanese institutions specializing in pediatric inflammatory bowel disease. Their clinical courses were analyzed retrospectively, and analyses of 71 genes associated with monogenic inflammatory bowel disease were performed.
Results
Among 13 patients, 8 were girls. Median ages at diagnosis of OFG and CD were 9.2 (3.8–15.3) and 10.3 (6.4–15.3) years old, respectively. Upper gastrointestinal lesions were frequent in 8 cases (62%), while perianal lesions were present in 7 (54%). OFG failed to improve or relapsed despite remission of intestinal lesions in about half of the patients (n = 7, 54%). During follow-up, OFG went into remission in 7 patients, including 6 of the 9 who were treated with biologics (66%) and 1 of the 4 who were not (25%). In 8 patients, the NCF1 p.Arg90His allele was detected by genetic analysis; 7 were heterozygous and 1 homozygous, a higher prevalence than in the general Japanese population.
Conclusions
Clinical features of OFG associated with pediatric CD are diverse, and biologic agents were beneficial for OFG patients. NCF1 p.Arg90His mutation may contribute to the pathogenesis of pediatric CD complicating OFG.
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Integrating perspectives on transabdominal intestinal ultrasound in inflammatory bowel disease management: a nationwide cross-sectional survey of physicians and patients in China
Longxi Yun, Zhaojue Wang, Yujun Chen, Ning Chen, Yan Chen, Xiaoqi Zhang, Xiaoyan Xie, Ren Mao, Yue Li, Qingli Zhu, Minhu Chen, China IUS Group
Received May 8, 2025  Accepted August 21, 2025  Published online January 2, 2026  
DOI: https://doi.org/10.5217/ir.2025.00074    [Epub ahead of print]
AbstractAbstract PDF
Background/Aims
The awareness, accessibility, and utilization of transabdominal intestinal ultrasound (IUS) in inflammatory bowel disease (IBD) management from both physicians’ and patients’ perspectives remains unclear in China. This nationwide cross-sectional survey aimed to gauge the current utilization of IUS, physician and patient perceptions and knowledge gap in IBD management across China.
Methods
A structured questionnaire, developed by the China IUS Group, was distributed to 612 physicians (69.8% of gastroenterologists, 28.0% of radiologists) from 38 tertiary hospitals and 1,154 IBD patients. Results: A total of 91.7% of physicians expressed an intention to incorporate IUS into future clinical practice. However, while 69.3% of physicians reported IUS availability at their institutions, its utilization varied widely. Only 16.5% of physicians applied IUS to more than 75% of their IBD patients. Additionally, 27.1% of physicians reported receiving IUS training. Radiologists were more likely than gastroenterologists to consider IUS as a sensitive tool for evaluating treatment efficacy (48.3% vs. 19.4%, P< 0.001), intestinal wall fibrosis (33.7% vs. 27.4%, P< 0.001), intestinal fistula (27.9% vs. 11.2%, P< 0.001), abdominal abscesses (49.4% vs. 28.6%, P< 0.001), and disease severity (30.2% vs. 11.0%, P< 0.001). Patients expressed high satisfaction with IUS (76.1%), yet 39.2% had safety concerns.
Conclusions
Despite growing recognition of IUS in China, its wide utilization in IBD management requires further promotion. The notable disparity between gastroenterologists and radiologists regarding IUS underscores the need for targeted, specialty-specific training. Strengthening patient education efforts is essential to further enhance patient acceptance of IUS.
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Fecal surrogate markers strongly correlate with endoscopic findings in pediatric onset inflammatory bowel disease: a retrospective study in Japan
Ryoko Yoshimura, Takahiro Kudo, Masanori Toda, Kosuke Kashiwagi, Masumi Nagata, Kaori Aoki, Natsuki Ito, Kazuhide Tokita, Nobuyasu Arai, Reiko Kyodo, Masamichi Sato, Eri Miyata, Keisuke Jimbo, Yoshikazu Ohtsuka, Toshiaki Shimizu, Hiromichi Shoji
Received January 5, 2025  Accepted April 2, 2025  Published online December 12, 2025  
DOI: https://doi.org/10.5217/ir.2025.00103    [Epub ahead of print]
AbstractAbstract PDFPubReaderePub
Background/Aims
Endoscopy serves as the gold standard for assessing disease activity in inflammatory bowel disease (IBD). Noninvasive biomarkers have been under exploration as potential alternatives. This study aims to examine the diagnostic effectiveness of fecal immunochemical tests, along with levels of fecal calprotectin (FC) and fecal lactoferrin (FL), in stool samples from patients with early-onset IBD.
Methods
Children with childhood-onset IBD who visited the Department of Pediatrics and Adolescent Medicine at Juntendo University Hospital between August 2019 and July 2023 were included. FC levels, FL levels, and fecal immunochemical test results were measured using a colloidal gold agglutination assay. Fecal biomarker results and endoscopic findings were reviewed retrospectively.
Results
Sixty-five patients had ulcerative colitis (UC), 20 had Crohn’s disease (CD), and 3 had unclassified IBD. The participants, aged 3–27 years (median, 18.0 years), included 56 males and 32 females. Stool samples (n = 1,105) were analyzed, from 803 with UC, 251 with CD, and 51 with IBD. Endoscopic evaluations were conducted in 45 UC patients and 18 CD patients. A significant correlation was found between the FC and FL. These biomarkers were significantly correlated with the endoscopic activity index in both UC and CD patients.
Conclusions
FC is valuable for diagnosing endoscopic inflammation and predicting recurrence. A significant correlation was observed between FC and FL. In patients with UC and CD, both markers strongly correlated with endoscopic activity. Thus, FC and FL can serve as a reliable alternative to endoscopic evaluation in pediatric patients with childhood-onset IBD.
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Preventive and therapeutic effects of co-administration of Bacteroides thetaiotaomicron and infliximab on dextran sodium sulfate-induced colitis in mice
Sara Ahmadi Badi, Hamid Reza Moradi, Ahmad Berimipour, Shima Shojaie, Arian Kariman, Hananeh Tavakoli Aval, Seyed Amirhesam Seyedi, Mehdi Davari, Mohammad Hassan Sohouli, Shohreh Khatami, Seyed Davar Siadat, Pejman Rohani
Received April 22, 2025  Accepted August 21, 2025  Published online December 12, 2025  
DOI: https://doi.org/10.5217/ir.2025.00061    [Epub ahead of print]
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Background/Aims
The gut microbiota plays a crucial role in the pathogenesis and treatment of inflammatory bowel diseases (IBD). This study aimed to investigate the effects of active, heat-inactivated, and cell-free supernatant (CFS) forms of Bacteroides thetaiotaomicron, alone or in combination with infliximab, in dextran sodium sulfate (DSS)-induced colitis in mice. Colitis was induced by oral administration of DSS for seven days. B. thetaiotaomicron in its various forms was orally administered at a dose of 1 × 108 CFU prior to and during colitis induction. Infliximab was intraperitoneally injected from days 3 to 5 of DSS exposure. Colitis severity, gene expression, tumor necrosis factor alpha levels, and gut microbiota were assessed by disease activity index, reverse transcription-quantitative polymerase chain reaction (RT-qPCR), enzyme-linked immunosorbent assay (ELISA), and qPCR, respectively.
Results
Active B. thetaiotaomicron and its CFS form significantly alleviated colitis symptoms compared to the heat-inactivated form. Furthermore, co-administration of active B. thetaiotaomicron and infliximab significantly modulated the colonic mRNA expression of Ocln, Tff3, Muc2 (upregulated), and Ace2 (downregulated). This combination also exhibited synergistic improvement in colitis severity in treated mice.
Conclusions
These findings underscore the therapeutic potential of B. thetaiotaomicron in IBD, either alone or in combination with infliximab, and support further development of microbiota-based strategies for IBD prevention and treatment.
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Effectiveness, safety, and pharmacokinetics of the infliximab biosimilar CT-P13 after non-medical switch from the infliximab originator in patients with inflammatory bowel disease
Ryohei Nomaru, Teruyuki Takeda, Atsushi Takahashi, Hiroyuki Mikumo, Shigeyoshi Yasukawa, Akihiro Koga, Takao Kanemitsu, Yoichiro Ono, Noritaka Takatsu, Masaki Miyaoka, Takashi Hisabe, Hisatomi Arima, So Imakiire, Eri Yamauchi, Shinya Ashizuka, Fumihito Hirai
Received June 30, 2025  Accepted September 4, 2025  Published online November 27, 2025  
DOI: https://doi.org/10.5217/ir.2025.00118    [Epub ahead of print]
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Background/Aims
The introduction of anti-tumor necrosis factor-α antibodies transformed the landscape of inflammatory bowel disease (IBD) treatment. Because biologics are associated with increased medical costs, the use of biosimilars (BS) is recommended. However, high-quality evidence on the efficacy of BS in Japan remains limited. Therefore, this study aimed to evaluate the efficacy and safety of BS in patients with IBD.
Methods
Patients with IBD who underwent a non-medical switch (NMS) from infliximab originator (IFX-O) to IFX-BS at Fukuoka University Chikushi Hospital were prospectively evaluated. The observation period was up to 56 weeks after the NMS, and the rate of continuation, clinical remission at 56 weeks, safety, and changes in trough concentration were analyzed. Moreover, a questionnaire survey regarding BS and NMS was conducted.
Results
A total of 167 patients were included in this study. The continuation rate for IFX-BS therapy after NMS was high (95.6%). The remission maintenance rate at 56 weeks was 85.7% for patients with Crohn’s disease and 77.8% for patients with ulcerative colitis. Adverse events were observed in 22.8% of patients. However, only 2 severe adverse events were recorded. The ratios of trough concentrations at 8, 24, and 56 weeks to that at week 0 were 115.6%, 101.2%, and 123.5%, respectively, indicating statistical non-inferiority. In a questionnaire survey, only 6.2% of the patients were aware of BS, however, more than half of them agreed with the NMS recommendation.
Conclusions
The efficacy and safety of IFX-BS after NMS are high. In addition, its trough concentration is serologically non-inferior to baseline values.
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Reviews
Efficacy and safety of filgotinib in the treatment of ulcerative colitis with a focus on rapid and sustained efficacy: a narrative review
Tadakazu Hisamatsu, Toshihiko Kaise, Chisa Nagakura, Makoto Kamiya, Shu-Chen Wei
Received July 25, 2025  Accepted September 28, 2025  Published online November 19, 2025  
DOI: https://doi.org/10.5217/ir.2025.00155    [Epub ahead of print]
AbstractAbstract PDFSupplementary MaterialPubReaderePub
The rising incidence of ulcerative colitis (UC) globally highlights the necessity for treatment strategies that extend beyond symptom control to include inducing and maintaining remission, achieving biochemical and endoscopic remission, and restoring quality of life. Janus kinase inhibitors, such as filgotinib (FIL), show promise in treating UC. This review consolidates evidence on FIL in treating UC from the SELECTION and SELECTIONLTE trials, and real-world studies. Overall, FIL demonstrated rapid symptom relief (e.g., improved rectal bleeding and stool frequency) within 7 days and durable efficacy (e.g., clinical remission, Mayo Clinic Score response) up to 4 years. Improvements in health-related quality of life (HRQoL) and reduced corticosteroid dependency were also observed. The 200 mg dose generally elicited greater efficacy responses than the 100 mg dose, and hence may potentially be a more suitable choice for optimizing treatment outcomes. Although FIL may be an effective long-term treatment option regardless of prior biologic experience, biologic-naive patients may experience greater sustained clinical improvements. Safety outcomes indicated that FIL was well tolerated with no unexpected safety signals in SELECTION and SELECTIONLTE. These findings support FIL’s potential as a robust therapeutic option for UC, due to its acceptable safety profile and benefits across clinical and HRQoL outcomes.
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The role of the Mediterranean diet in the management of inflammatory bowel disease: a narrative review
Peter Vivian Acire, Stephanie C. Brown, Andrew S. Day
Received May 6, 2025  Accepted August 12, 2025  Published online November 19, 2025  
DOI: https://doi.org/10.5217/ir.2025.00043    [Epub ahead of print]
AbstractAbstract PDFPubReaderePub
Inflammatory bowel disease (IBD) is characterized by the presence of gastrointestinal inflammation, that in some individuals leads on to complications, including strictures. IBD can be associated with significant morbidity with disruption of daily activities. Although the precise cause of IBD is unknown, epidemiologic studies indicate that diet is one contributory factor. Furthermore, various specific nutritional interventions have roles in the management of IBD. While the contribution of the Mediterranean diet (MedDiet) to the development or management of IBD has not yet been clearly delineated, available data are generally supportive. The MedDiet includes the consumption of a pattern of particular foods, such as plentiful vegetables, fruit, seafood, and olive oil, along with lifestyle features. Adherence to a MedDiet is associated with enrichment of beneficial components of the intestinal microbiome and enhanced barrier function: outcomes that are likely beneficial to individuals with IBD. The focus of this review was to highlight the evidence for the MedDiet in the setting of IBD, whilst giving an overview of the underlying health impacts of the MedDiet and the putative mechanisms of this dietary approach.
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Original Article
The impact of inflammatory bowel disease on women’s health: a cross sectional study in India
Arshia Bhardwaj, Arshdeep Singh, Riya Sharma, Gopal Bhardwaj, Liza Joshi, Ramit Mahajan, Dharmatma Singh, Pankaj Kumar, Marla C. Dubinsky, Shaji Sebastian, Vandana Midha, Ajit Sood
Received May 26, 2025  Accepted August 12, 2025  Published online November 14, 2025  
DOI: https://doi.org/10.5217/ir.2025.00088    [Epub ahead of print]
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Background/Aims
The gender-specific impact of inflammatory bowel disease (IBD) on women in low- and middle-income countries remains underexplored. We aimed to assess the effects of IBD on different domains of women’s health.
Methods
A cross-sectional study was conducted in women with IBD at a tertiary care center in North India. Women with IBD were interviewed using a structured questionnaire assessing menstrual, reproductive, sexual, mental, social, and financial health, and healthcare access.
Results
Two hundred and two women (median age, 41 years; ulcerative colitis [n = 155, 76.7%]) were enrolled. Anemia was present in 161 women (79.7%), with a median hemoglobin of 10.5 g/dL. Among menstruating women (n = 138), 69 (50%) had irregular cycles, and 39 (28.3%) experienced IBD exacerbations during menstruation. Sexual dysfunction was reported in 82.5% (n = 137/166). Pregnancy-related concerns were common (n= 120, 59.4%), mainly due to risk of heritability and safety of IBD medication. Ten women (4.9%) attributed pregnancy loss to disease activity. Cervical cancer screening (3.0%) and human papillomavirus vaccination (4.0%) rates were low. The median SICC-IBD (social impact of chronic conditions in IBD) score was 0.6. Forty-three women (21.3%) reported difficulties in finding a partner due to IBD. Limited access to IBD specialists (n = 150, 74.3%) and medications (n = 164, 81.2%) were reported in hometown. Fifty-five women (27.2%) relied on loans to manage treatment expenses.
Conclusions
IBD affects women across physical, reproductive, social, and financial domains. Culturally sensitive, multidisciplinary care models are essential to address these unmet needs.
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Case Report
Ustekinumab-induced Henoch-Schönlein purpura in Crohn’s disease: a case report and literature review
Merih Deniz Toruner, Tugce Guvenir, Volkan Yilmaz, Ramazan Erdem Er, Murat Toruner
Received January 22, 2025  Accepted July 13, 2025  Published online November 14, 2025  
DOI: https://doi.org/10.5217/ir.2025.00009    [Epub ahead of print]
AbstractAbstract PDFPubReaderePub
Crohn’s disease is a chronic inflammatory disease of the digestive tract with extraintestinal manifestations, which include skin conditions, arthritis, ocular inflammation, and several autoimmune conditions. Dermatologic manifestations in Crohn’s disease complicate the treatment course and prognosis and should be addressed promptly. Here, we report a 20-year-old male with a history of Crohn’s disease, presenting with palpable purpura, consistent with Henoch-Schönlein purpura, upon administration of ustekinumab. The immunoglobulin A vasculitis was treated with prednisone and the discontinuation of ustekinumab. Due to the increased usage of biological agents in inflammatory bowel diseases, associations between biologics and vasculitides should be further studied in Crohn’s disease patients for alternative treatment strategies and to understand potential adverse effects caused by biologics in Crohn’s disease.

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  • Ustekinumab

    Reactions Weekly.2026; 2093(1): 97.     CrossRef
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Reviews
IBD
Targeting the gut microbiome in inflammatory bowel disease: from concept to clinical reality
Nathalie Rolhion, Harry Sokol
Intest Res 2025;23(4):396-404.   Published online October 28, 2025
DOI: https://doi.org/10.5217/ir.2025.00104
AbstractAbstract PDFPubReaderePub
The gut microbiota, a complex community of trillions of microorganisms inhabiting the human gastrointestinal tract, has emerged as a critical regulator of immune homeostasis and gastrointestinal health. In the context of inflammatory bowel disease (IBD), comprising primarily Crohn’s disease and ulcerative colitis, disruptions to this microbial ecosystem—collectively termed dysbiosis—have been increasingly recognized as central to disease pathogenesis. Recent research has established that alterations in gut microbiota not only reflect disease states but may actively drive immune dysregulation, barrier dysfunction, and mucosal inflammation. This review synthesizes current knowledge on the role of the gut microbiota in IBD and evaluates the therapeutic landscape of microbiota-modulating strategies using selected examples. Fecal microbiota transplantation, while offering proof-of-concept validation, is hindered by standardization challenges and variable clinical outcomes. As a response, microbiome-based therapeutics have evolved toward defined live biotherapeutic products including bacterial consortia and single-strain products, postbiotics, and metabolite-centered approaches targeting specific pathways. Groundbreaking research into rationally designed synthetic microbiomes and next-generation probiotics is driving a paradigm shift in microbiota-based treatment for IBD from empirical to precision-guided interventions.
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IBD
Asian–Pacific perspectives on the management of very early-onset inflammatory bowel disease
Ichiro Takeuchi, Katsuhiro Arai, Pornthep Tanpowpong, Ming-Wei Lai, Andrew S Day, Way Seah Lee, James Guoxian Huang, Karen Sophia Calixto-Mercado, Rosanna Ming Sum Wong, Muhammad Arshad Alvi, Zubin Grover, Jung Ok Shim, Ujjal Poddar
Intest Res 2025;23(4):405-429.   Published online October 28, 2025
DOI: https://doi.org/10.5217/ir.2025.00082
AbstractAbstract PDFPubReaderePub
Children diagnosed with inflammatory bowel disease (IBD) before the age of 6 years are considered to have “very early-onset IBD (VEO-IBD),” which is challenging to diagnose and treat. Notably, many children with VEO-IBD have monogenic forms of the disease, meaning that early genetic testing is useful. However, because the prevalence of genetic variants causing VEO-IBD differs globally, the diagnosis and treatment of this disease should be tailored to each region. In the present review paper, the IBD Subcommittee of the Scientific Committee of the Asia-Pacific Society of Pediatric Gastroenterology, Hepatology and Nutrition (APSPGHAN) has summarized the epidemiology, presenting features, diagnosis, and treatment of VEO-IBD in the Asia– Pacific region, with an aim to guide clinicians and researchers who work with VEO-IBD in this area. Our 3 main messages are as follows: endoscopy is essential for VEO-IBD diagnosis; all children diagnosed with VEO-IBD should be suspected of having a monogenic form; and children with suspected monogenic IBD should undergo early genetic testing. Our messages aim to improve the early diagnosis and treatment of VEO-IBD in the Asia–Pacific region, including the early detection of monogenic IBD in this area.
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Original Articles
IBD
Knowledge and acceptability of the Lémann Index as a tool to measure disease progression and bowel damage in Crohn’s disease: results from an international survey
Charlotte Wong, Johan Burisch, Ryan C Ungaro, Anthony Buisson, Jérôme Lambert, Jean-Frédéric Colombel, Joana Torres, Naila Arebi
Intest Res 2025;23(4):512-523.   Published online October 28, 2025
DOI: https://doi.org/10.5217/ir.2024.00183
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Background/Aims
Crohn’s disease (CD) progresses to structural bowel damage (SBD). The Lémann Index (LI) captures stricture extent/severity, penetrating disease and surgery as a SBD score, and is earmarked for future CD modification trials. Understanding knowledge gaps and perceived barriers is critical to wider adoption.
Methods
A multinational, cross-sectional study was distributed through a survey link (REDCap, Research Electronic Data Capture) to gastrointestinal professional societies with snowball sampling using 23 questionnaire items in 5 sections to determine SBD and LI knowledge, and LI acceptability. Factors associated with acceptability and perception were evaluated.
Results
Of the 107 respondents, 49 (45.8%) were female; 87 (81.3%) were from Europe. Most were inflammatory bowel disease specialists (n = 80, 74.8%) or general gastroenterologists (n = 22, 20.6%), managing > 40 CD patients per month (n = 35, 32.7%). A total of 98 (91.6%) knew about SBD; “very important” rating for clinical trials and clinical practice was 56.1% and 41.4%, respectively. A 39.3% describe LI scoring as “very difficult” or “difficult”; 33.6% reported “significant” or “a lot” of effort. Acceptability (composite scores of > 36) were significantly associated with respondents who had received LI training (P<0.001). Automated methods, intestinal ultrasound and evidence of benefit would encourage LI use in clinical trials, while additional time and automated methods would promote use in clinical practice. The top 3 perceived adoption barriers were: lack of time (60.7%), limited automated methods (47.7%) and need for dedicated radiologists (38.3%).
Conclusions
Most respondents had baseline knowledge of SBD. The LI was perceived as important for advancing future CD research and care. More training and automation will facilitate LI adoption.
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IBD
Latent tuberculosis infection screening in patients with inflammatory bowel disease: a nationwide retrospective cohort study in South Korea comparing IGRA alone versus a combination of TST and IGRA
Ye-Jee Kim, Jiyeon Kim, Jiwon Lee, Tae Sun Shim, Sang Hyoung Park, Kyung-Wook Jo
Intest Res 2025;23(4):541-550.   Published online October 14, 2025
DOI: https://doi.org/10.5217/ir.2025.00136
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Background/Aims
We aimed to evaluate if using the interferon-gamma release assay (IGRA) alone is effective for latent tuberculosis infection (LTBI) screening in preventing active tuberculosis in patients with inflammatory bowel disease (IBD) before initiating anti-tumor necrosis factor alpha (anti-TNF-α) therapy, compared to using both the tuberculin skin test and IGRA.
Methods
Using South Korea’s Health Insurance Review and Assessment Service, we selected IBD patients treated with anti-TNF-α agents for ≥ 1 year who underwent LTBI screening between 2018 and 2021. We compared the 1-year incidence rate and standardized incidence ratio of active tuberculosis incidence after starting anti-TNF-α treatment to the general population based on the LTBI screening strategy.
Results
Of the 4,215 enrolled patients, 3,505 underwent IGRA alone for LTBI screening, while 710 received both tuberculin skin test and IGRA. Within 1 year of starting anti-TNF-α treatment, 15 patients (0.36%) developed active tuberculosis, with a mean follow-up period of 4,200.6 person-years. The 1-year tuberculosis incidence rates were 372.3 (95% confidence interval [CI], 198.2–636.6) per 100,000 person-years for the IGRA alone group and 282.3 (95% CI, 34.2–1,019.9) per 100,000 person-years for the combination group. The standardized incidence ratios were similar: 14.34 (95% CI, 7.63–24.52) for the IGRA alone group and 11.25 (95% CI, 1.26–40.61) for the combination group.
Conclusions
Using IGRA alone may be an effective strategy for LTBI screening in IBD patients before starting anti-TNF-α therapy. (Intest Res, Published online)
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Week 2 remission with vedolizumab as a predictor of long-term remission in patients with ulcerative colitis: a multicenter, retrospective, observational study
Taku Kobayashi, Tadakazu Hisamatsu, Satoshi Motoya, Toshimitsu Fujii, Reiko Kunisaki, Tomoyoshi Shibuya, Minoru Matsuura, Ken Takeuchi, Sakiko Hiraoka, Hiroshi Yasuda, Kaoru Yokoyama, Noritaka Takatsu, Atsuo Maemoto, Toshiyuki Tahara, Keiichi Tominaga, Masaaki Shimada, Nobuaki Kuno, Mary Cavaliere, Kaori Ishiguro, Jovelle L Fernandez, Toshifumi Hibi
Received April 9, 2024  Accepted April 6, 2025  Published online July 14, 2025  
DOI: https://doi.org/10.5217/ir.2025.00047    [Epub ahead of print]
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Background/Aims
Vedolizumab (VDZ), a gut-selective monoclonal antibody for ulcerative colitis (UC) treatment, has no established biomarkers or clinical features that predict long-term remission. Week 2 remission, a potential predictor of long-term remission, could inform maintenance treatment strategy.
Methods
This retrospective, observational chart review included patients with UC in Japan who initiated VDZ between December 2018 and February 2020. Outcome measures included 14- and 54-week remission rates in patients with week 2 and non-week 2 remission (remission by week 14), 54-week remission rates in patients with week 14 remission and primary nonresponse, and predictive factors of week 2 and week 54 remission (logistic regression).
Results
Overall, 332 patients with UC (176 biologic-naïve and 156 biologic-non-naïve) were included. Significantly more biologic-naïve than biologic-non-naïve patients achieved week 2 remission (36.9% vs. 28.2%; odds ratio [OR], 1.43; 95% confidence interval [CI], 1.05–1.94; P= 0.0224). Week 54 remission rates were significantly different between week 14 remission and primary nonresponse (both groups: P< 0.0001), and between week 2 and non-week 2 remission (all patients: OR, 2.41; 95% CI, 1.30–4.48; P= 0.0052; biologic-naïve patients: OR, 2.40; 95% CI, 1.10–5.24; P= 0.0280). Week 2 remission predictors were male sex, no anti-tumor necrosis factor alpha exposure, and normal/mild endoscopic findings. Week 54 remission was significantly associated with week 2 remission and no tacrolimus use.
Conclusions
Week 2 remission with VDZ is a predictor of week 54 remission in patients with UC. Week 2 may be used as an evaluation point for UC treatment decisions. (Japanese Registry of Clinical Trials: jRCT-1080225363)
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Cross-ethnic evaluation of gut microbial signatures reveal increased colonization with oral pathobionts in the north Indian inflammatory bowel disease cohort
Arshdeep Singh, Garima Juyal, Ranko Gacesa, Mohan C. Joshi, Vandana Midha, B. K. Thelma, Rinse K Weersma, Ajit Sood
Received December 23, 2024  Accepted April 23, 2025  Published online July 14, 2025  
DOI: https://doi.org/10.5217/ir.2024.00216    [Epub ahead of print]
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Background/Aims
Inflammatory bowel disease (IBD) has become a global health concern. With the growing evidence of the gut microbiota’s role in IBD, studying microbial compositions across ethnic cohorts is essential to identify unique, populationspecific microbial signatures.
Methods
We analyzed stool samples and clinical data from 254 IBD patients (226 ulcerative colitis, 28 Crohn’s disease) and 66 controls in northern India using metagenomic shotgun sequencing to assess microbiota diversity, composition, and function. Results were replicated in 436 IBD patients and 903 controls from the Netherlands using identical workflows. Using machine learning, we evaluated the generalizability of Indian IBD signals to the Dutch cohort, and vice versa.
Results
Indian IBD patients exhibited reduced bacterial diversity and an abundance of opportunistic pathogens, including Clostridium, Streptococcus, and oral bacteria like Streptococcus oralis and Bifidobacterium dentium. There was a significant loss of energy metabolic pathways and distinct co-occurrence patterns among microbial species. Notably, 39% of these signals replicated in the Dutch cohort. Unique to the Indian cohort were oral pathobionts such as Scardovia, Oribacterium, Actinomyces dentalis, and Klebsiella pneumoniae. Both Indian and Dutch IBD patients shared reduced butyrate producers. Machine-learning diagnostic models trained on the Indian cohort achieved high predictive accuracy (sensitivity 0.84, specificity 0.95) and moderately generalized to the Dutch cohort (sensitivity 0.77, specificity 0.69).
Conclusions
IBD patients across populations exhibit shared and unique microbial signatures, suggesting a role for the oral-gut microbiome axis in IBD. Crossethnic diagnostic models show promise for broader applications in identifying IBD.
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Ulcerative colitis disease severity affects the speed of symptom relief under filgotinib treatment: a post hoc analysis of the phase 2b/3 SELECTION study
Masayuki Saruta, Silvio Danese, Yoshie Takatori, Toshihiko Kaise, Christine Rudolph, Marc Ferrante, Toshifumi Hibi
Received October 23, 2024  Accepted April 28, 2025  Published online June 30, 2025  
DOI: https://doi.org/10.5217/ir.2024.00169    [Epub ahead of print]
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Background/Aims
Filgotinib is an oral, once-daily, Janus kinase 1 preferential inhibitor approved for the treatment of ulcerative colitis (UC). This study aimed to assess symptomatic response with filgotinib 200 mg (FIL200) according to disease severity using baseline partial Mayo Clinic Score (pMCS).
Methods
In the phase 2b/3 SELECTION study (NCT02914522), adults with moderate-to-severe UC were randomized to receive FIL200, filgotinib 100 mg, or placebo for 11 weeks in induction studies A (biologic-naive) and B (biologic-experienced). In this post hoc analysis, symptomatic remission (Mayo rectal bleeding subscore of 0 and stool frequency subscore ≤ 1) rates were assessed daily from baseline to day 15 and fortnightly from week 2 to week 10 by baseline pMCS (pMCS ≥ 7, pMCS < 7) in patients who received induction FIL200.
Results
Of those who received FIL200 in induction studies A and B, 90 and 148 patients had a pMCS ≥ 7, and 155 and 114 had a pMCS < 7, respectively. Symptomatic remission rates were generally significantly higher in the pMCS < 7 than ≥ 7 group from day 2–15 (day 2: 8.4% vs. 1.1%, P= 0.009 [induction study A]; 8.8% vs. 0.7%, P= 0.004 [induction study B]). However, by week 10, there was no longer a significant difference in the rates between the pMCS ≥ 7 and < 7 groups (43.3% vs. 54.8%, P= 0.124 [induction study A]; 26.4% vs. 39.5%, P= 0.099 [induction study B]).
Conclusions
Symptomatic response to FIL200 occurred more rapidly in the less severe disease groups than in the more severe disease groups; however, regardless of disease severity, both groups benefited from continued FIL200 treatment.
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Review
IBD
Evolution of inflammatory bowel disease in Korea: a 60-year perspective on clinical and research development
Suk-Kyun Yang
Intest Res 2025;23(3):233-253.   Published online June 23, 2025
DOI: https://doi.org/10.5217/ir.2025.00073
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Inflammatory bowel disease (IBD) was once considered rare in Korea, with the first reported case documented in 1961. Since then, its incidence and prevalence have increased markedly, accompanied by significant progress in clinical care and research. This narrative review traces the historical evolution of IBD in Korea, dividing the timeline into 4 periods: 1960–1979, 1980–1999, 2000–2019, and 2020–2039. For each period, major developments in the research environment and trends, diagnostic process, patient population and characteristics, and treatment are outlined. Over the past 6 decades, diagnostic and therapeutic approaches in Korea have advanced markedly, transitioning from limited diagnostic capacity and symptom-based management to practices that align with global standards. Notably, Korean patients with IBD exhibit distinctive clinical features compared with Western counterparts, including a markedly higher proportion of proctitis and a lower long-term risk of colectomy in ulcerative colitis, and a substantially higher prevalence of perianal fistulas in Crohn’s disease, highlighting the need for population- specific strategies to advance personalized medicine. In parallel, the research landscape has evolved through multicenter collaborations, expanded research capacity, and growing international engagement, positioning Korea as an increasingly active contributor to the global IBD research community. Looking ahead, the future of IBD research in Korea is expected to be shaped by innovation-driven research, including advances in artificial intelligence, large-scale data integration, and deeper international collaboration. By tracing the clinical and research trajectory of IBD in Korea, this review offers insight into how the country has adapted to global trends and is preparing to meet future challenges.
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Original Article
IBD
A real-world comparison of subcutaneous to intravenous administration of infliximab in patients with inflammatory bowel disease
Kwang Woo Kim, Hyoun Woo Kang, Seong-Joon Koh, Hyuk Yoon, Sihyun Kim, Yukyung Jun, Hyun Jung Lee, Jong Pil Im, Young Soo Park, Ji Won Kim, Joo Sung Kim, Seoul National University Inflammatory Bowel Disease Research Network (SIRN)
Intest Res 2025;23(4):483-490.   Published online June 23, 2025
DOI: https://doi.org/10.5217/ir.2025.00001
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Background/Aims
We compared intravenous and subcutaneous infliximab (IFX) as treatment for inflammatory bowel disease (IBD).
Methods
This retrospective, multicenter, observational study enrolled patients treated with either intravenous or subcutaneous IFX. Sequential parameters were compared at baseline, 6 months, and 12 months following the initiation of treatment with either type of IFX. The primary outcome was the comparison of the IFX trough levels after 12 months of treatment.
Results
In total, 183 participants were included in this study. After 6 months, the subcutaneous group exhibited significant differences compared to the intravenous group; in terms of clinical disease activity (0% vs. 15%, P= 0.007) and IFX trough level (21.72 ± 8.71 μg/mL vs. 7.70 ± 16.65 μg/mL, P= 0.002). After 12 months, subcutaneous, as compared to intravenous, achieved improved clinical disease activity (0% vs. 15%, P= 0.044) and IFX trough level (20.41 ± 12.91 μg/mL vs. 7.06 ± 6.81 μg/mL, P< 0.001). Analyzing the sequential changes compared with baseline data within each group, we observed significant alterations in subcutaneous; 6 months fecal calprotectin (676.3 ± 976.6 μg/g vs. 253.9 ± 483.9 μg/g, P= 0.014), 6 months IFX trough level (7.00 ± 5.67 μg/mL vs. 18.44 ± 6.34 μg/mL, P= 0.026), and 12 months IFX trough level (7.00 ± 5.67 μg/mL vs. 21.33 ± 4.50 μg/mL, P= 0.034).
Conclusions
This study indicates the potential suitability of subcutaneous IFX as an alternative treatment option for IBD.
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Review
IBD
Gut, bone, and muscle: the triad of osteosarcopenia in inflammatory bowel disease
Shilpa Sharma
Intest Res 2025;23(3):254-289.   Published online April 29, 2025
DOI: https://doi.org/10.5217/ir.2024.00185
AbstractAbstract PDFPubReaderePub
Inflammatory bowel disease (IBD) is a group of chronic inflammatory conditions affecting the gastrointestinal tract that can lead to multiple systemic complications. Among these, osteosarcopenia has emerged as a significant concern, characterized by the concurrent deterioration of bone density and muscle mass, strength, and function. This dual deterioration significantly elevates the risk of falls and fractures, thereby exacerbating morbidity and diminishing quality of life. The pathogenesis of IBD-associated osteosarcopenia is multifactorial, with chronic intestinal inflammation serving as a central driver. Pro-inflammatory cytokines simultaneously disrupt bone homeostasis and muscle metabolism, creating a catabolic environment that impacts both tissues. Nutritional deficiencies, common in IBD due to malabsorption and decreased dietary intake, further compromise both bone mineralization and muscle protein synthesis. Management requires a comprehensive approach combining nutritional optimization, structured physical therapy, and lifestyle modifications. Pharmacological interventions integrate diseasespecific treatments with targeted therapies including vitamin D supplementation, hormonal treatments, and bisphosphonates when indicated. This review synthesizes current evidence regarding the prevalence, pathogenesis, and clinical impact of osteosarcopenia in IBD, highlighting areas requiring further investigation.

Citations

Citations to this article as recorded by  
  • Osteosarcopenic obesity and the progression of physical frailty, cognition function, and mental health: First longitudinal evidence from ELSA
    Qihang Yang, Yibo Qiao, Pengfei Shi, Zongqiang Huang
    The Journal of nutrition, health and aging.2026; 30(1): 100744.     CrossRef
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Case Report
Inflammatory bowel disease in a young female patient with a novel de novo TRAF3 frameshift variant responsive to ustekinumab: a case report
Ichiro Takeuchi, Kosuke Taniguchi, Katsuhiro Arai, Toru Uchiyama, Miho Terao, Asuka Hori, Toshinao Kawai, Takako Yoshioka, Reiko Kyodo, Hirotaka Shimizu, Satoshi Fujita, Kenichiro Motomura, Yuka Okazaki, Takashi Ishikawa, Masao Ogura, Kentaro Hayashi, Kenji Matsumoto, Shuji Takada, Masafumi Onodera, Hideaki Morita, Kenichiro Hata
Received November 15, 2024  Accepted March 4, 2025  Published online April 4, 2025  
DOI: https://doi.org/10.5217/ir.2024.00190    [Epub ahead of print]
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Tumor necrosis factor receptor-associated factor 3 (TRAF3) is an anti-inflammatory molecule that negatively regulates the non-canonical nuclear factor-κB pathway. Although TRAF3 haploinsufficiency (TRAF3 HI) can influence innate and adaptive immune cells, its effect on inflammatory bowel disease (IBD) development remains unclear. Here, we report the first case of severe early-onset IBD with a novel TRAF3 variant leading to HI, successfully treated with ustekinumab. A 6-year-old girl with a recurrent parotitis, otitis media, tonsilitis, and atopic dermatitis developed IBD involving the stomach, small intestine, and colon. At diagnosis, the immunoglobulin (Ig)G and IgA levels were relatively high, and lymphocyte subsets showed increased counts of plasmablasts, class-switch recombination B cells, and circulating T-follicular helper cells. Treatment with azathioprine and infliximab failed to maintain remission marked by several relapses accompanied by erythema nodosum and arthritis; however, ustekinumab, an anti-interleukin (IL)-12/23p40 antibody, led to long-term clinical remission, normalizing the Ig level and reducing abnormal lymphocyte counts. Whole-exome sequencing revealed a novel heterozygous mutation in TRAF3 [p.(Pro487Leufs*8)], resulting in TRAF3 under-expression. Our case may highlight the contribution of TRAF3 HI to the development of IBD and provide insights into IBD pathophysiology, suggesting the involvement of the IL-12/23-T-follicular helper cell pathway affected by genetic mutations.
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Original Articles
Characteristics and long-term outcomes of children with perianal Crohn’s disease
Ching-Chun Lin, Ichiro Takeuchi, Hirotaka Shimizu, Reiko Kyodo, Mitsuru Kubota, Akira Ishiguro, Katsuhiro Arai
Received September 30, 2024  Accepted December 4, 2024  Published online March 5, 2025  
DOI: https://doi.org/10.5217/ir.2024.00154    [Epub ahead of print]
AbstractAbstract PDFPubReaderePub
Background/Aims
The incidence of perianal lesions (PL) in children with Crohn’s disease (CD) is higher in East Asia than in Western countries. Early intervention for PL is essential to prevent sphincter dysfunction and ostomy placement. In this study, we aimed to investigate the clinical features, treatment, and consequences of pediatric CD with PL.
Methods
We retrospectively reviewed a cohort of children diagnosed with CD from 2010 to 2020 at a Japanese children’s hospital. Demographics, treatments, and outcomes were evaluated and compared among subgroups.
Results
Among 112 pediatric patients with CD, 36 (32.1%) had experienced PL during the observational period. The median ages at diagnosis and follow-up periods were 131 and 70 months, respectively. Six (85.7%) patients in the very early-onset (VEO) group (CD diagnosed before 6 years old) and 24 (82.8%) in the older age group had PL upon diagnosis of CD (P= 0.851). Biologics were given to 94.4% of patients: infliximab (67.7%), adalimumab (58.8%), ustekinumab (44.1%), risankizumab (11.8%), and vedolizumab (5.9%). Biologics were introduced within 1 year in 89.5% and 40.0% of patients diagnosed in 2016–2020 and 2010–2016, respectively (P= 0.002). Seton was frequently used in the older age group (87.5 vs. 42.9%, P= 0.190). Ostomy was frequently required in the VEO group (42.9% vs. 0.0%, P= 0.006).
Conclusions
Patients with VEO-CD and PL had a notably high risk of ostomy placement. The earlier introduction of biologics and surgical interventions reduced corticosteroids use and ostomy placement in pediatric CD patients with PL.

Citations

Citations to this article as recorded by  
  • Asian–Pacific perspectives on the management of very early-onset inflammatory bowel disease
    Ichiro Takeuchi, Katsuhiro Arai, Pornthep Tanpowpong, Ming-Wei Lai, Andrew S Day, Way Seah Lee, James Guoxian Huang, Karen Sophia Calixto-Mercado, Rosanna Ming Sum Wong, Muhammad Arshad Alvi, Zubin Grover, Jung Ok Shim, Ujjal Poddar
    Intestinal Research.2025; 23(4): 405.     CrossRef
  • 5,147 View
  • 405 Download
  • 1 Web of Science
  • 1 Crossref
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Process of empowerment in mothers of children with very-early-onset inflammatory bowel disease: a qualitative study
Mikako Yokoo, Satomi Nomura, Satoe Fukui, Ichiro Takeuchi, Hirotaka Shimizu, Katsuhiro Arai
Received April 3, 2024  Accepted December 2, 2024  Published online February 24, 2025  
DOI: https://doi.org/10.5217/ir.2024.00048    [Epub ahead of print]
AbstractAbstract PDFPubReaderePub
Background/Aims
Mothers of children with very-early-onset inflammatory bowel disease (VEO-IBD) face unique challenges; however, these challenges and their consequences have not been well described. This study clarified the experiences and processes of empowerment of mothers of children with VEO-IBD.
Methods
This study performed a qualitative inductive analysis using semi-structured interviews. The interview content was transcribed, generating core categories, categories, and subcategories with a focus on mothers raising children with VEO-IBD. A modified grounded theory approach was employed to inductively construct a theory from the qualitative data.
Results
Fifteen mothers of children with VEO-IBD were interviewed (mean age, 43.9 ± 6.2 years). The modified grounded theory approach revealed the processes experienced by the mothers. The mothers faced various difficulties when their children developed VEO-IBD; however, their efforts to cope with these difficulties changed their situation. Furthermore, they were supported by various individuals, including family members, medical personnel, and, occasionally, families of other children with VEO-IBD. These processes strengthened and empowered the mothers.
Conclusions
Mothers of children with VEO-IBD who faced various difficulties were empowered through their efforts and support from family and others who understood their challenges. This process of empowerment continues throughout the development of children with VEO-IBD.
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Burden of inflammatory bowel disease in India: analysis of the Global Burden of Disease study from 1990 to 2019
Suprabhat Giri, Anuraag Jena, Praveen Kumar-M, Jaikumar Rajavoor Muniswamy, Preetam Nath, Vishal Sharma
Received August 26, 2024  Accepted December 4, 2024  Published online February 6, 2025  
DOI: https://doi.org/10.5217/ir.2024.00134    [Epub ahead of print]
AbstractAbstract PDFPubReaderePub
Background/Aims
Inflammatory bowel disease (IBD) is increasing across the globe, more so in populous countries like India. We aimed to study the disease burden and epidemiological trends of IBD in India and look closer into the disease pattern across the country from 1990 to 2019.
Methods
The burden of IBD was estimated in India using the data from the Global Burden of Disease estimate for 2019, which is a comprehensive worldwide project. The analysis included various parameters like incidence, prevalence, mortality, disability-adjusted life years, years lived with disability, and years of life lost as age-adjusted rates (per 100,000 population). Using modeling, the prediction was also made for 2050 in India.
Results
The age-standardized incidence, prevalence, mortality, and disability rates of IBD in India for 2019 were 2.34, 20.34, 0.40, and 13.04, respectively. These are lower than the global incidence, prevalence, mortality, and disability rates of 4.97, 59.25, 0.54, and 20.15, respectively. The annual rates of change in incidence, prevalence, mortality, and disability rates in India from 1990 to 2019 were 0.05, –0.02, –0.36, and –0.35, respectively. The annual rates of change in incidence and prevalence are higher than the global rate of –0.18 and –0.19, while the annual rates of change in mortality and disability are lower than the global rate of –0.19 and –0.26.
Conclusions
The incidence and prevalence of IBD in India are lower compared to the global population but are increasing at a faster rate than the global population.

Citations

Citations to this article as recorded by  
  • Impact of GLP-1 analogues on immune-mediated inflammatory diseases: A systematic review
    Chhagan L. Birda, Fadwa Ibrahim, Abhirup Chatterjee, Anuraag Jena, Vishal Sharma, Shaji Sebastian
    Autoimmunity Reviews.2026; 25(1): 103936.     CrossRef
  • Burden of anemia in inflammatory bowel disease: A systematic review and meta-analysis
    Rupa Tharu, Savitesh Kushwaha, Rachana Srivastava, Vaneet Jearth, Nitin Kaushal, Anupam Kumar Singh, Shweta Khandelwal, Poonam Khanna
    Clinical Epidemiology and Global Health.2026; 37: 102262.     CrossRef
  • Modulation of colonic DNA methyltransferase by mild moxibustion and electroacupuncture in ulcerative colitis TET2 knockout mice
    Gege Feng, Yue Zhang, Huangan Wu, Lu Zhu, Hongxiao Xu, Zhe Ma, Yan Huang
    Digital Chinese Medicine.2025; 8(1): 100.     CrossRef
  • Research Status of Anemia Associated with Inflammatory Bowel Disease
    莉娟 孙
    Journal of Clinical Personalized Medicine.2025; 04(03): 712.     CrossRef
  • Efficacy of tirzepatide for weight loss and it’s comparative effectiveness to weight loss surgery in inflammatory bowel disease
    Aakash Desai, Himsikhar Khataniar, Fjona Tabaku, Jana G. Hashash, Francis A. Farraye, Gursimran S. Kochhar
    Indian Journal of Gastroenterology.2025;[Epub]     CrossRef
  • The adoption of a westernized gut microbiome in Indian Immigrants and Indo-Canadians is associated with dietary acculturation
    Leah D. D’Aloisio, Mamatha Ballal, Sanjoy Ghosh, Natasha Haskey, Nijiati Abulizi, Ramin Karimianghadim, Chuyi Liu, Pacha Sruthi, Lakshmipriya Nagarajan, Sudha Vasudevan, Vignesh Shetty, Mrudgandha Purandare, Ushasi Bhaumik, Debaki Ranjan Howlader, Sepideh
    npj Biofilms and Microbiomes.2025;[Epub]     CrossRef
  • Next-generation non-animal models for inflammatory bowel disease: In vitro and in silico approaches for mechanistic understanding
    Priyanka Raju Chougule, Sukesh Narayan Sinha
    NAM Journal.2025; 1: 100051.     CrossRef
  • Relation of ultra-processed food consumption with ulcerative colitis disease activity
    Nancy Sahni, Ayushi, Urvashi Rana, Radhika Khosla, Usha Dutta, Rakesh Kochhar, Vishal Sharma
    Indian Journal of Gastroenterology.2025;[Epub]     CrossRef
  • Modulation of inflammatory and cuproptotic crosstalk by Ethyl and propyl gallate: a multi-targeted strategy against experimental colitis
    Priyanka Raju Chougule, Sukesh Narayan Sinha, Sudip Ghosh, Sangaraju Rajendra, Saikanth Varma, Suresh Challa, Manjula Bhanoori
    Molecular Biology Reports.2025;[Epub]     CrossRef
  • Stroke in paediatric Crohn’s disease
    Sai Anjali Kambala, Seema Pavaman Sindgikar, Daniya Hameed, Chandrashekar J Sorake
    BMJ Case Reports.2025; 18(12): e269145.     CrossRef
  • Editorial: The Hidden Burden—Stigmatisation in Inflammatory Bowel Disease: Authors' Reply
    Suprabhat Giri, Anuraag Jena, Vishal Sharma, Shaji Sebastian
    Alimentary Pharmacology & Therapeutics.2025;[Epub]     CrossRef
  • 14,184 View
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IBD
Understanding fatigue among Japanese patients with inflammatory bowel disease: insights from international comparisons and meta-analysis
Makoto Tanaka, Momoko Takai, Sayaka Wakai, Kayoko Sakagami, Hiroaki Ito
Intest Res 2025;23(3):372-381.   Published online January 22, 2025
DOI: https://doi.org/10.5217/ir.2024.00145
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Background/Aims
Fatigue is a common symptom in patients with inflammatory bowel disease (IBD). The Functional Assessment of Chronic Illness Therapy-Fatigue (FACIT-F) scale has demonstrated reliability and validity in assessing fatigue in patients with IBD and is used worldwide. This study aimed to examine the current state of fatigue among Japanese patients with IBD using the FACIT-F scale and to compare these findings with data from global studies through a systematic review.
Methods
Data from 488 patients with IBD treated at a specialized IBD clinic were analyzed. Patient characteristics, such as sex, age, disease duration, disease activity, FACIT-F scores, and sleep duration, were collected. A literature search identified 8 studies that met our inclusion criteria for an international comparison. A meta-analysis was performed on the Fatigue Subscale (FS) scores of FACIT-F to estimate the pooled mean.
Results
The mean FACIT-F (FS) score in this study was 39.9 ± 8.6. Four variables were significantly associated with fatigue: low Emotional Well-Being subscale scores, sleep duration < 6 hours, albumin level below the reference value, and being unmarried. The meta-analysis revealed that the pooled mean score was 40.2 (95% confidence interval, 39.5–40.9), and between-study heterogeneity was moderate (I2 = 41%).
Conclusions
The FACIT-F (FS) scores and related factors in Japanese patients with IBD demonstrated a similar trend to those in other countries. These findings can be used to identify patients in need of support and to consider interventions for modifiable factors. This study will help promote international collaborative research.

Citations

Citations to this article as recorded by  
  • Sexual satisfaction and associated factors among patients with inflammatory bowel disease in Japan
    Sayaka Wakai, Makoto Tanaka, Momoko Takai, Kayoko Sakagami, Hiroaki Ito
    Japan Journal of Nursing Science.2025;[Epub]     CrossRef
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Factors affecting 1-year persistence with vedolizumab for ulcerative colitis: a multicenter, retrospective real-world study
Taku Kobayashi, Tadakazu Hisamatsu, Satoshi Motoya, Toshimitsu Fujii, Reiko Kunisaki, Tomoyoshi Shibuya, Minoru Matsuura, Ken Takeuchi, Sakiko Hiraoka, Hiroshi Yasuda, Kaoru Yokoyama, Noritaka Takatsu, Atsuo Maemoto, Toshiyuki Tahara, Keiichi Tominaga, Masaaki Shimada, Nobuaki Kuno, Jovelle L. Fernandez, Kaori Ishiguro, Mary Cavaliere, Hisato Deguchi, Toshifumi Hibi
Received May 1, 2024  Accepted October 5, 2024  Published online January 16, 2025  
DOI: https://doi.org/10.5217/ir.2024.00063    [Epub ahead of print]
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Background/Aims
The objectives of this real-world study were to determine 1-year persistence with vedolizumab in patients with ulcerative colitis and to evaluate factors contributing to loss of response.
Methods
In this multicenter, retrospective, observational chart review, patients with moderately to severely active ulcerative colitis who received ≥ 1 dose of vedolizumab in clinical practice at 16 tertiary hospitals in Japan (from December 2018 through February 2020) were enrolled.
Results
Persistence with vedolizumab was 64.5% (n = 370); the median follow-up time was 53.2 weeks. Discontinuation due to loss of response among initial clinical remitters was reported in 12.5% (35/281) of patients. Multivariate analysis showed that concomitant use of tacrolimus (odds ratio [OR], 2.76; 95% confidence interval [CI], 1.00–7.62; P= 0.050) and shorter disease duration (OR for median duration ≥ 7.8 years vs. < 7.8 years, 0.33; 95% CI, 0.13–0.82; P= 0.017) were associated with discontinuation due to loss of response. Loss of response was not associated with prior use of anti-tumor necrosis factor alpha therapy, age at the time of treatment, disease severity, or concomitant corticosteroids or immunomodulators. Of the 25 patients with disease duration < 1 year, 32.0% discontinued due to loss of response.
Conclusions
Persistence with vedolizumab was consistent with previous reports. Use of tacrolimus and shorter disease duration were the main predictors of decreased persistence.

Citations

Citations to this article as recorded by  
  • Real‐World Effectiveness and Safety of Vedolizumab in Patients ≥ 70 Versus < 70 Years With Ulcerative Colitis: Multicenter Retrospective Study
    Tadakazu Hisamatsu, Taku Kobayashi, Satoshi Motoya, Toshimitsu Fujii, Reiko Kunisaki, Tomoyoshi Shibuya, Minoru Matsuura, Sakiko Hiraoka, Ken Takeuchi, Hiroshi Yasuda, Kaoru Yokoyama, Noritaka Takatsu, Atsuo Maemoto, Toshiyuki Tahara, Keiichi Tominaga, Ma
    Journal of Gastroenterology and Hepatology.2025; 40(6): 1435.     CrossRef
  • Increasing age at diagnosis raises malignancy risk and aminosalicylate intolerance influences therapeutic strategies in ulcerative colitis: a multicenter I‑BRITE cohort study
    Shintaro Akiyama, Yuka Ito, Mamiko Shiroyama, Satoshi Suzuki, Masanori Ochi, Toshiro Kamoshida, Hiroshi Kashimura, Junichi Iwamoto, Rie Saito, Tsuyoshi Kaneko, Kazuto Ikezawa, Yoshinori Hiroshima, Junji Hattori, Takashi Mamiya, Satoshi Fukuda, Kazuho Iked
    Journal of Gastroenterology.2025; 60(10): 1259.     CrossRef
  • Mayo Endoscopic Subscore at Week 24 Is a Predictor of Future Loss of Response to Vedolizumab in Patients with Ulcerative Colitis in Clinical Remission
    Daisuke Saito, Minoru Matsuura, Hiromu Morikubo, Noritaka Hibi, Haruka Komatsu, Noriaki Oguri, Takeshi Fujima, Haruka Wada, Ryota Ogihara, Tatsuya Mitsui, Mari Hayashida, Jun Miyoshi, Teppei Omori, Tadakazu Hisamatsu
    Inflammatory Intestinal Diseases.2025; 10(1): 387.     CrossRef
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  • 837 Download
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Statement
IBD
Role of 5-aminosalicylic acid in ulcerative colitis management in 8 Asian territories: a physician survey
Julajak Limsrivilai, Allen Yu-hung Lai, Silvia T. H. Li, Murdani Abdullah, Raja Affendi Raja Ali, Satimai Aniwan, Hoang Huu Bui, Jen-Wei Chou, Ida Normiha Hilmi, Wee Chian Lim, Jose Sollano, Michelle Mui Hian Teo, Shu-Chen Wei, Wai Keung Leung
Intest Res 2025;23(2):117-128.   Published online January 6, 2025
DOI: https://doi.org/10.5217/ir.2024.00085
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Clinical guidelines typically endorse conventional therapies such as 5-aminosalicylic acid (5-ASA) as the mainstay of ulcerative colitis management. However, the degree of adoption and application of guideline recommendations by physicians within Asia remains unclear. This study aims to understand the prescribing patterns of 5-ASA and implementation of current guideline recommendations across Asian clinical practice. A physician survey was conducted among inflammatory bowel disease specialists in 8 Asian territories to understand practices and preferences in ulcerative colitis management, focusing on the use of 5-ASA and concordance with guideline recommendations. Survey findings were validated by country experts in diverse healthcare settings. Subgroup analyses stratified data by income levels and treatment reimbursement status. Ninety-eight valid responses were received from inflammatory bowel disease specialists or gastroenterologists among 8 economic entities. Significant differences were found in clinical practices and treatment preferences for ulcerative colitis management among different income-level and government-subsidy groups. Survey results are summarized in 8 findings that illustrate trends in 5-ASA use and guideline implementation across Asian territories. This study emphasizes socioeconomic factors that impact the adoption of guideline recommendations in real-world practice. Our findings indicate an eclectic approach to guideline implementation across Asia, based on resource availability and feasibility of treatment goals.
  • 16,669 View
  • 251 Download
  • 2 Web of Science
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Original Articles
IBD
Persistence of advanced therapies in patients with inflammatory bowel disease: retrospective cohort study using a large healthcare claims database in Japan
Katsuyoshi Matsuoka, Ko Nakajo, Shiho Kawamura, Yongjing Zhang, Hsingwen Chung, Bryan Wahking, Jin Yu Tan, Hong Qiu
Intest Res 2025;23(3):358-371.   Published online January 2, 2025
DOI: https://doi.org/10.5217/ir.2024.00118
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Background/Aims
There are few studies that comprehensively report real-world persistence for first-line advanced therapies used to treat inflammatory bowel disease. We aimed to describe persistence of first-line advanced therapies among incident biologic or Janus kinase inhibitor users with inflammatory bowel disease.
Methods
Retrospective cohort study using the Japan Medical Data Center database from January 1, 2010, until September 30, 2022. Patients aged ≥15 years with relevant diagnostic and treatment codes were included. All eligible patients were observed until study end (September 30, 2022), death, or disenrollment, whichever occurred first.
Results
Among 1,115 patients with Crohn’s disease included in the analysis, 41.4% initiated adalimumab, 37.4% infliximab, 18.1% ustekinumab, and 3.0% vedolizumab. Median age was 31.2–34.8 years, 72.8% to 85.9% were male. Persistence at 12 months was 84.7% for adalimumab, 87.7% for infliximab, 91.3% for ustekinumab, and 53.1% for vedolizumab. Persistence at 24 months was 76.3%, 76.8%, 80.4%, and 28.6%, respectively. Among 1,942 patients with ulcerative colitis, 24.8% initiated adalimumab, 33.6% infliximab, 11.2% golimumab, 17.5% vedolizumab, 5.6% ustekinumab, and 7.3% tofacitinib. Mean age was 38.2–40.4 years, 57.4% to 65.8% were male. Persistence at 12 months was 57.6% for adalimumab, 87.7% for infliximab, 54.9% for golimumab, 69.7% for vedolizumab, and 84.0% for ustekinumab. At month 24, persistence for ustekinumab was 75.0%, versus 42.9%–59.4% for other treatments.
Conclusions
Index treatment with ustekinumab resulted in high persistence through 24 months after initiation in patients with Crohn’s disease or ulcerative colitis. Our study provides insights into the real-world usage of advanced treatments for patients with IBD in Japan.

Citations

Citations to this article as recorded by  
  • Real-world outcomes of ustekinumab, vedolizumab, and tumor necrosis factor inhibitors in very-early-onset inflammatory bowel disease: a multi-center cohort study
    Ryusuke Nambu, Itaru Iwama, Ichiro Takeuchi, Shin-ichiro Hagiwara, Yuri Etani, Emiri Kaji, Atsushi Yoden, Fumihiko Kakuta, Yusuke Hoshi, Naoya Tsumura, Tatsuki Mizuochi, Hideki Kumagai, Koji Yokoyama, Takuya Nishizawa, Masaaki Usami, Yugo Takaki, Ryo Eban
    Journal of Gastroenterology.2026;[Epub]     CrossRef
  • 7,848 View
  • 509 Download
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IBD
Knowledge and perspectives towards the use of histology in inflammatory bowel disease by gastroenterologists across the Asia-Pacific region
Thanaboon Chaemsupaphan, Aviv Pudipeddi, Huiyu Lin, Hsin-Yun Wu, Julajak Limsrivilai, Wee Chian Lim, Shu-Chen Wei, Rupert W. Leong
Intest Res 2025;23(3):338-346.   Published online December 2, 2024
DOI: https://doi.org/10.5217/ir.2024.00086
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Background/Aims
Recently, histological mucosal assessment has gained momentum as a potential new treatment target for patients with inflammatory bowel disease (IBD) in the Asia-Pacific region. This study aimed to evaluate and compare the knowledge and acceptability of histological assessment among gastroenterologists across the region.
Methods
A cross-sectional survey among gastroenterologists in the Asia-Pacific region was conducted and compared against a previous Australian survey. The questionnaire assessed knowledge and attitude towards the role and application of histology in IBD practice. Statistical analyses were employed to compare scores and identify predictors.
Results
A total of 221 gastroenterologists from 12 countries, including 77 (34.8%) from Australia, responded to questionnaire, with 185 (83.7%) completing the survey. The mean knowledge score was 9.8 ± 3.3 (51.6%). There was no significant difference in the average score among countries (P= 0.53). IBD specialist (P< 0.01), doctoral degree (P= 0.02), and regular participation in IBD multidisciplinary meetings (P= 0.01) were associated with higher scores. Most respondents (90.7%) agreed on the importance of histology in IBD. While 54.6% of Australians perceived the role of histology as established, only 37.0% of Asians respondents considered this similarly (P= 0.02). Histological activity alone minimally influences treatment escalation in patients with endoscopic remission, but achieving combined histo-endoscopic remission often leads to therapy de-escalation.
Conclusions
Although gastroenterologists in the Asia-Pacific region are aware of the role of histology in IBD, their knowledge remains limited, and its clinical utility is not widely adopted. There is a need to promote the routine use of standardized histological assessment in IBD practice.

Citations

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  • Comparison of the performance between an AI-based vision transformer and human endoscopists in predicting the endoscopic and histologic activities of ulcerative colitis
    Yuan-Yen Chang, Han-Po Yang, Yang-Yuan Chen, Hsu-Heng Yen
    DIGITAL HEALTH.2026;[Epub]     CrossRef
  • Asia Pacific association of gastroenterology consensus statements on histopathological evaluation of inflammatory bowel diseases
    Rupert W. Leong, Thanaboon Chaemsupaphan, Huiyu Lin, Wee Chian Lim, Choon Jin Ooi, John D. Chetwood, Ren Mao, Hsin Yun Wu, Shu Chen Wei, Govind Makharia, Vineet Ahuja, Rupa Banerjee, Raja Atreya, Julajak Limsrivilai, Satimai Aniwan, Pises Pisespongsa, Ida
    Therapeutic Advances in Gastroenterology.2025;[Epub]     CrossRef
  • 3,066 View
  • 181 Download
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Reviews
IBD
Optimizing 5-aminosalicylate for moderate ulcerative colitis: expert recommendations from the Asia-Pacific, Middle East, and Africa Inflammatory Bowel Disease Coalition
Filiz Akyüz, Yoon Kyo An, Jakob Begun, Satimai Aniwan, Huu Hoang Bui, Webber Chan, Chang Hwan Choi, Nazeer Chopdat, Susan J Connor, Devendra Desai, Emma Flanagan, Taku Kobayashi, Allen Yu-Hung Lai, Rupert W Leong, Alex Hwong-Ruey Leow, Wai Keung Leung, Julajak Limsrivilai, Virly Nanda Muzellina, Kiran Peddi, Zhihua Ran, Shu Chen Wei, Jose Sollano, Michelle Mui Hian Teo, Kaichun Wu, Byong Duk Ye, Choon Jin Ooi
Intest Res 2025;23(1):37-55.   Published online November 4, 2024
DOI: https://doi.org/10.5217/ir.2024.00089
AbstractAbstract PDFPubReaderePub
The lack of clear definition and classification for “moderate ulcerative colitis (UC)” creates ambiguity regarding the suitability of step-up versus top-down treatment approaches. In this paper, experts address crucial gaps in assessing and managing moderate UC. The Asia-Pacific, Middle East, and Africa Inflammatory Bowel Disease Coalition comprised 24 experts who convened to share, discuss and vote electronically on management recommendations for moderate UC. Experts emphasized that the goal of treating UC is to attain clinical, biomarker, and endoscopic remission using cost-effective strategies such as 5-aminosalicylates (5-ASAs), well-tolerated therapy that can be optimized to improve outcomes. Experts agreed that 5-ASA therapy could be optimized by maximizing dosage (4 g/day for induction of remission), combining oral and topical administration, extending treatment duration beyond 8 weeks, and enhancing patient adherence through personalized counselling and reduced pill burden. Treatment escalation should ideally be reserved for patients with predictors of aggressive disease or those who do not respond to 5-ASA optimization. Premature treatment escalation to advanced therapies (including biologics and oral small molecules) may have long-term health and financial consequences. This paper provides consensus-based expert recommendations and a treatment algorithm, based on current evidence and practices, to assist decision-making in real-world settings.

Citations

Citations to this article as recorded by  
  • Inflammatory bowel disease in Africa: the current landscape of pharmacological treatments and the promise of emerging innovations
    Murtada A. Oshi
    Exploration of Drug Science.2025;[Epub]     CrossRef
  • 18,717 View
  • 363 Download
  • 1 Web of Science
  • 1 Crossref
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IBD
Complex dichotomous links of nonalcoholic fatty liver disease and inflammatory bowel disease: exploring risks, mechanisms, and management modalities
Kanishk Aggarwal, Bhupinder Singh, Abhishek Goel, Durgesh Kumar Agrawal, Sourav Bansal, Sai Gautham Kanagala, Fnu Anamika, Aachal Gupta, Rohit Jain
Intest Res 2024;22(4):414-427.   Published online June 5, 2024
DOI: https://doi.org/10.5217/ir.2024.00001
AbstractAbstract PDFPubReaderePub
Nonalcoholic fatty liver disease (NAFLD) has been shown to be linked to inflammatory bowel disease (IBD) due to established risk factors such as obesity, age, and type 2 diabetes in numerous studies. However, alternative research suggests that factors related to IBD, such as disease activity, duration, and drug-induced toxicity, can contribute to NAFLD. Recent research findings suggest IBD relapses are correlated with dysbiosis, mucosal damage, and an increase in cytokines. In contrast, remission periods are characterized by reduced metabolic risk factors. There is a dichotomy evident in the associations between NAFLD and IBD during relapses and remissions. This warrants a nuanced understanding of the diverse influences on disease manifestation and progression. It is possible to provide a holistic approach to care for patients with IBD by emphasizing the interdependence between metabolic and inflammatory disorders.

Citations

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  • Elucidating the association between nonalcoholic fatty liver disease and incidence of inflammatory bowel disease: a focus on systemic inflammation
    Sihyun Kim, Jong Pil Im
    Intestinal Research.2025; 23(1): 3.     CrossRef
  • 6,509 View
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  • 1 Crossref
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Original Articles
IBD
Early change in serum leucine-rich α-2-glycoprotein predicts clinical and endoscopic response in ulcerative colitis
Ryo Karashima, Shintaro Sagami, Yoko Yamana, Masa Maeda, Aya Hojo, Yusuke Miyatani, Masaru Nakano, Takahisa Matsuda, Toshifumi Hibi, Taku Kobayashi
Intest Res 2024;22(4):473-483.   Published online June 5, 2024
DOI: https://doi.org/10.5217/ir.2023.00135
AbstractAbstract PDFPubReaderePub
Background/Aims
Leucine-rich α-2-glycoprotein (LRG) is a new serum biomarker reflecting the disease activity of ulcerative colitis (UC), but its change during the acute phase has not been enough investigated.
Methods
Patients with UC who initiated the induction therapy with steroid or advanced therapy (biologics or Janus kinase inhibitors) were prospectively enrolled. Associations of LRG, C-reactive protein (CRP) and fecal calprotectin (FC) at baseline, week 1, and week 8 with clinical remission at week 8 and subsequent endoscopic improvement within 1 year (Mayo endoscopic subscore of 0 or 1) were assessed.
Results
A total of 143 patients with UC were included. LRG and CRP at week 1 were significantly lower in the clinical remission group than in the non-remission group (LRG, 20.6 μg/mL vs. 28.4 μg/mL, P< 0.001; CRP, 0.9 mg/dL vs. 2.3 mg/dL, P< 0.001) while FC demonstrated the difference between groups only at week 8. The area under the curves of week 1 LRG, CRP, and FC for week 8 clinical remission using the receiver operating characteristic curves analysis were 0.68, 0.71, and 0.57, respectively. Furthermore, LRG and CRP predicted subsequent endoscopic improvement as early as week 1, while FC was predictive only at week 8.
Conclusions
LRG can be an early-phase biomarker predicting subsequent clinical and endoscopic response to induction therapy.

Citations

Citations to this article as recorded by  
  • The diagnostic accuracy of plasma and serum calprotectin is inferior to C-reactive protein in patients with suspected Crohn’s disease
    M. H. Rasmussen, J. B. Brodersen, C. L. Brasen, J. S. Madsen, T. Knudsen, J. Kjeldsen, M. D. Jensen
    Scandinavian Journal of Gastroenterology.2025; 60(3): 235.     CrossRef
  • Changes of leucine-rich alpha 2 glycoprotein could be a marker of changes of endoscopic and histologic activity of ulcerative colitis
    Yuki Aoyama, Sakiko Hiraoka, Eriko Yasutomi, Toshihiro Inokuchi, Takehiro Tanaka, Kensuke Takei, Shoko Igawa, Keiko Takeuchi, Masahiro Takahara, Junki Toyosawa, Yasushi Yamasaki, Hideaki Kinugasa, Jun Kato, Hiroyuki Okada, Motoyuki Otsuka
    Scientific Reports.2025;[Epub]     CrossRef
  • Real‐World Effectiveness and Safety of Mirikizumab Induction Therapy in Patients With Ulcerative Colitis: A Multicentre Retrospective Observational Study
    Yasuhiro Takagi, Toshiyuki Sato, Takanori Nishiguchi, Akira Nogami, Masataka Igeta, Soichi Yagi, Maiko Ikenouchi, Mikio Kawai, Koji Kamikozuru, Yoko Yokoyama, Toshihiko Tomita, Hirokazu Fukui, Masayuki Fukata, Taku Kobayashi, Shinichiro Shinzaki
    Alimentary Pharmacology & Therapeutics.2025; 61(12): 1923.     CrossRef
  • Leucine-Rich Alpha-2 Glycoprotein 1 as a Biomarker for Evaluation of Inflammatory Bowel Disease Activity in Children
    Betül Aksoy, Yeliz Çağan Appak, Murat Akşit, Serenay Çetinoğlu, Sinem Kahveci, Şenay Onbaşı Karabağ, Selen Güler, İlksen Demir, İnanç Karakoyun, Maşallah Baran
    Journal of Clinical Medicine.2025; 14(8): 2803.     CrossRef
  • Editorial: Real‐World Effectiveness of Mirikizumab in Ulcerative Colitis—A Valuable but Preliminary Glimpse. Authors' Reply
    Shinichiro Shinzaki, Yasuhiro Takagi, Toshiyuki Sato
    Alimentary Pharmacology & Therapeutics.2025; 61(12): 1967.     CrossRef
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IBD/ Endoscopy
Adequacy of sigmoidoscopy as compared to colonoscopy for assessment of disease activity in patients of ulcerative colitis: a prospective study
Sameet Tariq Patel, Anuraag Jena, Sanjay Chandnani, Shubham Jain, Pankaj Nawghare, Saurabh Bansal, Harsh Gandhi, Rishikesh Malokar, Jay Chudasama, Prasanta Debnath, Seemily Kahmei, Rima Kamat, Sangeeta Kini, Qais Q Contractor, Pravin M Rathi
Intest Res 2024;22(3):310-318.   Published online May 16, 2024
DOI: https://doi.org/10.5217/ir.2023.00174
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Background/Aims
Patients of ulcerative colitis (UC) on follow-up are routinely evaluated by sigmoidoscopy. There is no prospective literature to support this practice. We assessed agreement between sigmoidoscopy and colonoscopy prospectively in patients with disease extent beyond the sigmoid colon.
Methods
We conducted a prospective observational study at a tertiary care institute for agreement between sigmoidoscopy and colonoscopy. We assessed endoscopic activity using the Mayo Endoscopic Score (MES) and Ulcerative Colitis Endoscopic Index of Severity (UCEIS) and histological activity using the Nancy Index (NI), Robarts Histopathology Index (RHI), and Simplified Geboes Score (SGS).
Results
Sigmoidoscopy showed a strong agreement with colonoscopy for MES and UCEIS with a kappa (κ) of 0.96 and 0.94 respectively. The misclassification rate for MES and UCEIS was 3% and 5% respectively. Sigmoidoscopy showed perfect agreement (κ = 1.00) with colonoscopy for assessment of the presence of endoscopic activity in the colon using MES ≥ 1 as activity criteria and strong agreement (κ = 0.93) using MES > 1 as activity criteria. Sigmoidoscopy showed strong agreement with colonoscopy for assessment of the presence of endoscopic activity using UCEIS (κ = 0.92). Strong agreement was observed between sigmoidoscopy and colonoscopy using NI (κ = 0.86), RHI (κ = 1.00), and SGS (κ = 0.92) for the detection of histological activity. The misclassification rate for the detection of histological activity was 2%, 0%, and 1% for NI, RHI, and SGS respectively.
Conclusions
Sigmoidoscopy showed strong agreement with colonoscopy for endoscopic and histologic disease activity. Sigmoidoscopy is adequate for assessment of disease activity in patients with UC during follow-up evaluation.

Citations

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  • Sigmoidoscopy is sufficient to assess endoscopic response to therapy in pediatric ulcerative colitis: A cohort study
    Shira Yuval Bar‐Asher, Esther Orlanski‐Meyer, Ibrahim Shamasnah, Dotan Yogev, Dan Turner
    Journal of Pediatric Gastroenterology and Nutrition.2026; 82(1): 98.     CrossRef
  • ECCO consensus on management of inflammatory bowel disease in low- and middle-income countries
    Alaa El-Hussuna, Almuthe Christina Hauer, Tarkan Karakan, Valerie Pittet, Henit Yanai, Jalpa Devi, Jesus K Yamamoto-Furusho, Ali Reza Sima, Hailemichael Desalegn, Mutaz Idrees Sultan, Vishal Sharma, Hany Shehab, Lamya Mrabti, Natalia Queiroz, Anuraag Jena
    Journal of Crohn’s and Colitis.2026;[Epub]     CrossRef
  • Comments on “Adequacy of sigmoidoscopy as compared to colonoscopy for assessment of disease activity in patients of ulcerative colitis: a prospective study”
    Sidharth Harindranath
    Intestinal Research.2025; 23(2): 225.     CrossRef
  • Reshaping study design for faster extrapolation‐based drug approval in pediatric inflammatory bowel diseases: An ESPGHAN–NASPGHAN position paper
    Dan Turner, Amit Assa, Mikkel Malham, Shira Yuval Bar‐Asher, Carla Rayan, Jeffrey S. Hyams, Holm H. Uhlig, Brad Pasternak, David C. Wilson, Hilary K. Michel, Lissy de Ridder, Eric Zuckerman, Marina Aloi, Peter Szitanyi, Marla C. Dubinsky, Anne M. Griffith
    Journal of Pediatric Gastroenterology and Nutrition.2025;[Epub]     CrossRef
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IBD
Defining management strategies for acute severe ulcerative colitis using predictive models: a simulation-modeling study
Danny Con, Peter De Cruz
Intest Res 2024;22(4):439-452.   Published online May 7, 2024
DOI: https://doi.org/10.5217/ir.2023.00175
AbstractAbstract PDFPubReaderePub
Background/Aims
Robust management algorithms are required to reduce the residual risk of colectomy in acute severe ulcerative colitis (ASUC) refractory to standard infliximab salvage therapy. The aim of this study was to evaluate the performance and benefits of alternative ASUC management strategies using simulated prediction models of varying accuracy.
Methods
This was a simulation-based modeling study using a hypothetical cohort of 5,000 steroid-refractory ASUC patients receiving standard infliximab induction. Simulated predictive models were used to risk-stratify patients and escalate treatment in patients at high risk of failing standard infliximab induction. The main outcome of interest was colectomy by 3 months.
Results
The 3-month colectomy rate in the base scenario where all 5,000 patients received standard infliximab induction was 23%. The best-performing management strategy assigned high-risk patients to sequential Janus kinase inhibitor inhibition and mediumrisk patients to accelerated infliximab induction. Using a 90% area under the curve (AUC) prediction model and optimistic treatment efficacy assumptions, this strategy reduced the 3-month colectomy rate to 8% (65% residual risk reduction). Using an 80% AUC prediction model with only modest treatment efficacy assumptions, the 3-month colectomy rate was reduced to 15% (35% residual risk reduction). Overall management strategy efficacy was highly dependent on predictive model accuracy and underlying treatment efficacy assumptions.
Conclusions
This is the first study to simulate predictive model-based management strategies in steroid-refractory ASUC and evaluate their effect on short-term colectomy rates. Future studies on predictive model development should incorporate simulation studies to better understand their expected benefit.

Citations

Citations to this article as recorded by  
  • Medical management of acute severe ulcerative colitis in the hospitalized patient
    Loren G Rabinowitz, Ajay Gade, Joseph D. Feuerstein
    Expert Review of Gastroenterology & Hepatology.2025; 19(5): 467.     CrossRef
  • Three Janus kinase inhibitors in ulcerative colitis: is upadacitinib taking the lead?
    Yoon Suk Jung
    Intestinal Research.2025; 23(4): 394.     CrossRef
  • 5,447 View
  • 218 Download
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Review
IBD
Cardiovascular disease: extraintestinal manifestation of inflammatory bowel disease
Samridhi Lakhanpal, Kanishk Aggarwal, Harmanjit Kaur, Kunal Kanwar, Vasu Gupta, Jill Bhavsar, Rohit Jain
Intest Res 2025;23(1):23-36.   Published online May 7, 2024
DOI: https://doi.org/10.5217/ir.2023.00104
AbstractAbstract PDFPubReaderePub
Inflammatory bowel disease (IBD) is a spectrum of diseases characterized by the interplay of the aberrant immune system, genetic factors, environmental factors, and intestinal microbiota, resulting in relapsing inflammation of the gastrointestinal tract. Underlying pro-inflammatory state and immune dysregulation act as a catalyst for increasing the likelihood of developing extraintestinal manifestations, including cardiovascular diseases (CVD) like atherosclerosis, pericarditis, myocarditis, venous and arterial thromboembolism, arrhythmias, despite a lower prevalence of classic CVD risk factors, like high body mass index or dyslipidemia compared to the general population. Chronic inflammation damages endothelium resulting in the recruitment of inflammatory cells, which induce cytotoxicity, lipoprotein oxidation, and matrix degradation, which increases the risk of atherosclerosis. Additionally, intestinal dysbiosis disrupts the intestinal mucosal barrier, releasing endotoxins and lipopolysaccharides into circulation, further exaggerating the atherosclerotic process. Abnormal collagen metabolism and alteration of nitric oxide-mediated vasodilation lead to blood pressure dysregulation in patients with IBD. Therefore, it is essential to make lifestyle modifications like smoking cessation, dietary changes, and increasing physical activity with adherence to medication to mitigate the risk of developing CVD in patients with IBD. This article reviews the potential links between IBD and the increased risk of CVD in such individuals.

Citations

Citations to this article as recorded by  
  • Metabolic Disorders and Inflammatory Bowel Diseases
    Hye Kyung Hyun, Jae Hee Cheon
    Gut and Liver.2025; 19(3): 307.     CrossRef
  • Carnitine: Its Crucial Role in Metabolic Health and Cardiovascular Function
    Fremita Fredrick, Kanishk Aggarwal, Anish Kumar Reddy Meda, Fnu Anamika, Amishi Singla, Pranjal Jain, Rohit Jain
    Journal of Dietary Supplements.2025; 22(5): 664.     CrossRef
  • The gut-heart axis: a correlation between Paneth cells’ dysfunction, microbiome dysbiosis, and cardiovascular diseases
    Aysa Rezabakhsh, Solomon Habtemariam, Rezayat Parvizi, Anne Meddahi-Pellé, Violeta Rodriguez Ruiz, Graciela Pavon-Djavid, Abolfazl Barzgari
    Cell Communication and Signaling.2025;[Epub]     CrossRef
  • Study design of ‘PASIBO’ - co-creation and development of a physical activity intervention to patients with inflammatory bowel disease
    Tanja Thomsen, Marie Villumsen, Anja Poulsen, Anders B. G. Hansen, Bente A. Esbensen, Tine Jess, Mette Aadahl
    BMC Health Services Research.2025;[Epub]     CrossRef
  • From Gut Inflammation to Cardiovascular Conflagration: Mapping IBD’s Cardiometabolic Risks
    Oscar Noble, Dayoung Jeon, Megan Lewis, Christopher Fan, Khurram Nasir, Bincy P. Abraham
    Current Atherosclerosis Reports.2025;[Epub]     CrossRef
  • Cardiovascular Complications Are Increased in Inflammatory Bowel Disease: A Path Toward Achievement of a Personalized Risk Estimation
    Vito Annese, Maria Laura Annunziata, Guglielmo Albertini Petroni, Emanuele Orlando, Sofia Cinque, Marzio Parisi, Paolo Biamonte, Giuseppe Dell’Anna, Anna Latiano, Serenella Castelvecchio
    Journal of Personalized Medicine.2025; 15(9): 418.     CrossRef
  • Coagulopathy and platelet abnormalities in patients with inflammatory bowel disease
    Dae Sung Kim, Won Moon
    The Korean Journal of Internal Medicine.2025; 40(6): 866.     CrossRef
  • Clinical Outcomes of Venous Thromboembolism in Patients with Ankylosing Spondylitis vs. Other Immune-mediated Inflammatory Diseases: Insights from the RIETE Registry
    Romain Chopard, Gregory Piazza, Laurent Bertoletti, Nicolas Meneveau, Leticia Guirado, José Antonio Porras, Francisco Rivera-Cívico, José Felipe Varona Arche, Manuel Monreal, Clément Prati
    Thrombosis and Haemostasis.2025;[Epub]     CrossRef
  • 9,646 View
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Original Articles
IBD
Effects of COVID-19 vaccines on patient-reported outcomes in patients with inflammatory bowel disease: a multicenter survey study in Korea
Jung Hyun Ji, Seung Hwan Shin, Yong Eun Park, Jihye Park, Jae Jun Park, Jae Hee Cheon, Tae Il Kim, Sang-Bum Kang, Sang Hyoung Park, Soo Jung Park, IBD Research Group of the Korean Association for the Study of Intestinal Diseases (KASID)
Intest Res 2024;22(3):336-350.   Published online March 26, 2024
DOI: https://doi.org/10.5217/ir.2023.00077
AbstractAbstract PDFPubReaderePub
Background/Aims
The impact of vaccination on inflammatory bowel disease (IBD) patients is still unknown, and no studies have assessed the changes in patient-reported outcomes (PROs) after vaccination in patients with IBD. Therefore, in this study, we investigated the impact of vaccines on the PROs of patients with IBD.
Methods
We conducted a questionnaire survey of patients with IBD who visited outpatient clinics at 4 specialized IBD clinics of referral university hospitals from April 2022 to June 2022. A total of 309 IBD patients were included in the study. Patient information was collected from a questionnaire and their medical records, including laboratory findings, were reviewed retrospectively. Risk factors associated with an increase in PROs after COVID-19 vaccination were analyzed using logistic regression analyses. In addition, we assessed whether there were differences in variables by vaccine order using the linear mixed model.
Results
In multivariate analysis, young age ( < 40 years) and ulcerative colitis (UC) were found to be independent risk factors for aggravation of PROs in patients with IBD. In all patients, platelet count significantly increased with continued vaccination in multiple pairwise comparisons. In UC patients, PROs such as the short health scale, UC-abdominal signs and symptoms, and UC-bowel signs and symptoms were aggravated significantly with continued vaccination. There was no significant increase in the variables of patients with Crohn’s disease.
Conclusions
Therefore, there may be a need to counsel patients with IBD younger than 40 years of age, and patients with UC before they receive COVID-19 vaccinations.

Citations

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  • Bowel Urgency in Crohn's Disease: Bridging the Gap Between Patients and Healthcare Providers
    Marla Dubinsky, Alison Potts Bleakman, Stephan Vavricka, Simon Travis, Vipul Jairath, Remo Panaccione, María Chaparro, Bénédicte Caron, Deborah A. Fisher, Richard Moses, Aisha Vadhariya, Alissa Walsh
    American Journal of Gastroenterology.2025;[Epub]     CrossRef
  • 9,609 View
  • 218 Download
  • 1 Crossref
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IBD
Association between nonalcoholic fatty liver disease and incidence of inflammatory bowel disease: a nationwide population‑based cohort study
Ying-Hsiang Wang, Chi-Hsiang Chung, Tien-Yu Huang, Chao-Feng Chang, Chi-Wei Yang, Wu-Chien Chien, Yi-Chiao Cheng
Intest Res 2025;23(1):76-84.   Published online February 21, 2024
DOI: https://doi.org/10.5217/ir.2023.00078
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Background/Aims
Nonalcoholic fatty liver disease (NAFLD) is a common disease with severe inflammatory processes associated with numerous gastrointestinal diseases, such as inflammatory bowel disease (IBD). Therefore, we investigated the relationship between NAFLD and IBD and the possible risk factors associated with the diagnosis of IBD.
Methods
This longitudinal nationwide cohort study investigated the risk of IBD in patients with NAFLD alone. General characteristics, comorbidities, and incidence of IBD were also compared.
Results
Patients diagnosed with NAFLD had a significant risk of developing IBD compared to control individuals, who were associated with a 2.245-fold risk of the diagnosis of IBD and a 2.260- and 2.231-fold of increased diagnosis of ulcerative colitis and Crohn’s disease, respectively (P< 0.001). The cumulative risk of IBD increased annually during the follow-up of patients with NAFLD (P< 0.001).
Conclusions
Our results emphasize that NAFLD significantly impacts its incidence in patients with NAFLD. If patients with NAFLD present with risk factors, such as diabetes mellitus and dyslipidemia, these conditions should be properly treated with regular follow-ups. Furthermore, we believe that these causes may be associated with the second peak of IBD.

Citations

Citations to this article as recorded by  
  • Elucidating the association between nonalcoholic fatty liver disease and incidence of inflammatory bowel disease: a focus on systemic inflammation
    Sihyun Kim, Jong Pil Im
    Intestinal Research.2025; 23(1): 3.     CrossRef
  • Metabolic Disorders and Inflammatory Bowel Diseases
    Hye Kyung Hyun, Jae Hee Cheon
    Gut and Liver.2025; 19(3): 307.     CrossRef
  • Intestinal Barrier Dysfunction in Inflammatory Bowel Disease: Pathophysiology to Precision Therapeutics
    Balachandar Selvakumar, Rani Samsudin
    Inflammatory Bowel Diseases.2025; 31(12): 3450.     CrossRef
  • Multiomics analysis reveals the potential mechanism of high‐fat diet in dextran sulfate sodium‐induced colitis mice model
    Yuyang Zhao, Zhimin Chen, Ruiyi Dong, Yufan Liu, Yixin Zhang, Yan Guo, Meiyi Yu, Xiang Li, Jiangbin Wang
    Food Science & Nutrition.2024; 12(10): 8309.     CrossRef
  • 6,527 View
  • 338 Download
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IBD
Ustekinumab for anti-tumor necrosis factor refractory pediatric ulcerative colitis: a promising approach towards endoscopic healing
Rahiya Rehman, Muhammad Safwan Riaz, Dyadin Esharif, Phinnara Has, Michael Herzlinger, Jason Shapiro, Shova Subedi
Intest Res 2024;22(3):351-356.   Published online February 6, 2024
DOI: https://doi.org/10.5217/ir.2023.00091
AbstractAbstract PDFPubReaderePub
Background/Aims
To describe the role of ustekinumab in inducing remission and endoscopic healing in anti-tumor necrosis factor α nonresponsive pediatric ulcerative colitis patients at a tertiary care inflammatory bowel disease center.
Methods
A retrospective chart review was performed on patients with ulcerative colitis receiving ustekinumab. Primary outcome was steroidfree clinical remission at follow-up. Secondary outcomes were biochemical remission and endoscopic healing.
Results
Ten children were analyzed; 7 (70%) had ulcerative colitis, and 3 (30%) had inflammatory bowel disease unspecified with colitis. Median follow-up period was 56 weeks. Nine patients (90%) achieved steroid-free clinical remission and biochemical remission. Seven patients had follow-up colonoscopies, out of which 6 (86%) achieved endoscopic remission, while 1 (14%) underwent colectomy. Out of the 3 patients without a follow-up colonoscopy, fecal calprotectin levels downtrended to < 150 mg/kg in 2 patients and < 400 mg/kg in 1 patient from baseline level of > 2,000 mg/kg.
Conclusions
Ustekinumab appears efficacious in achieving not only clinical and biochemical remission but also has promising role in inducing endoscopic healing end point in patients who fail other biologics.

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  • Positionspapier der Gesellschaft für Pädiatrische Gastroenterologie und Ernährung (GPGE) zum zulassungsüberschreitenden Gebrauch von für Erwachsene mit CED zugelassenen Biologika und Signalinhibitoren bei Kindern und Jugendlichen
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    Jae Hee Cheon, Byong Duk Ye, Alessandro Armuzzi, Florian Rieder, Giampiero Girolomoni, Luis Puig, Hojung Jung, Steven R. Feldman
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    Miki Urushiyama, Kunio Tarasawa, Rintaro Moroi, Hideya Iwaki, Yusuke Hoshi, Hiroshi Nagai, Yusuke Shimoyama, Takeo Naito, Fumihiko Kakuta, Hisashi Shiga, Shin Hamada, Yoichi Kakuta, Kiyohide Fushimi, Yoshitaka Kinouchi, Daiki Abukawa, Kenji Fujimori, Atsu
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IBD
Sarcopenia is common in ulcerative colitis and correlates with disease activity
Pardhu B Neelam, Rimesh Pal, Pankaj Gupta, Anupam K Singh, Jimil Shah, Harshal S Mandavdhare, Harjeet Singh, Aravind Sekar, Sanjay K Bhadada, Usha Dutta, Vishal Sharma
Intest Res 2024;22(2):162-171.   Published online January 22, 2024
DOI: https://doi.org/10.5217/ir.2023.00090
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Background/Aims
Association of sarcopenia with disease severity in ulcerative colitis (UC) is not clearly defined. We planned to estimate the prevalence of sarcopenia in patients with UC as per the revised definition and its relation with the disease severity.
Methods
A cross-sectional assessment of sarcopenia in patients with UC was performed. Disease activity was graded according to complete Mayo score. Hand grip strength was assessed with Jamar hand dynamometer, muscle mass using a dual energy X-ray absorptiometry scan, and physical performance with 4-m walk test. Sarcopenia was defined as a reduction of both muscle mass and strength. Severe sarcopenia was defined as reduced gait speed in presence of sarcopenia.
Results
Of 114 patients (62 males, mean age: 36.49±12.41 years), 32 (28%) were in remission, 46 (40.4%) had mild-moderate activity, and 36 (31.6%) had severe UC. Forty-three patients (37.7%) had probable sarcopenia, 25 (21.9%) had sarcopenia, and 14 (12.2%) had severe sarcopenia. Prevalence of sarcopenia was higher in active disease (2 in remission, 6 in active, and 17 in severe, P<0.001). Of 14 with severe sarcopenia, 13 had severe UC while 1 had moderate UC. On multivariate analysis, lower body mass index and higher Mayo score were associated with sarcopenia. Of 37 patients with acute severe colitis, 16 had sarcopenia. Requirement of second-line therapy was similar between patients with and without sarcopenia. On follow-up (median: 18 months), there was a non-significant higher rate of major adverse events in those with sarcopenia (47.4% vs. 33.8%, P=0.273).
Conclusions
Sarcopenia and severe sarcopenia in UC correlate with the disease activity.

Citations

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Reviews
IBD
Helminths in alternative therapeutics of inflammatory bowel disease
Himani Pandey, Daryl W. T. Tang, Sunny H. Wong, Devi Lal
Intest Res 2025;23(1):8-22.   Published online January 12, 2024
DOI: https://doi.org/10.5217/ir.2023.00059
AbstractAbstract PDFPubReaderePub
Inflammatory bowel disease (IBD), which includes Crohn’s disease and ulcerative colitis, is a nonspecific chronic inflammation of the gastrointestinal tract. Despite recent advances in therapeutics and newer management strategies, IBD largely remains untreatable. Helminth therapy is a promising alternative therapeutic for IBD that has gained some attention in the last two decades. Helminths have immunomodulatory effects and can alter the gut microbiota. The immunomodulatory effects include a strong Th2 immune response, T-regulatory cell response, and the production of regulatory cytokines. Although concrete evidence regarding the efficacy of helminth therapy in IBD is lacking, clinical studies and studies done in animal models have shown some promise. Most clinical studies have shown that helminth therapy is safe and easily tolerable. Extensive work has been done on the whipworm Trichuris, but other helminths, including Schistosoma, Trichinella, Heligmosomoides, and Ancylostoma, have also been explored for pre-clinical and animal studies. This review article summarizes the potential of helminth therapy as an alternative therapeutic or an adjuvant to the existing therapeutic procedures for IBD treatment.

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    Yu Zhou, Fang Shen
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IBD
The practice of fecal microbiota transplantation in inflammatory bowel disease
Umang Arora, Saurabh Kedia, Vineet Ahuja
Intest Res 2024;22(1):44-64.   Published online November 21, 2023
DOI: https://doi.org/10.5217/ir.2023.00085
AbstractAbstract PDFPubReaderePub
Current evidence posits a central role for gut microbiota and the metabolome in the pathogenesis and progression of inflammatory bowel disease (IBD). Fecal microbiota transplantation (FMT) has been established as a means to manipulate this microbiome safely and sustainably. Several aspects of the technical improvement including pretreatment with antibiotics, use of frozen stool samples as well as short donor-to-recipient time are proposed to improve its response rates. Its efficacy in ulcerative colitis has been proven in clinical trials while data is emerging for Crohn’s disease. This review describes briefly the biology behind FMT, the available evidence for its use in IBD, and the host, recipient and procedural factors which determine the clinical outcomes.

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Original Article
IBD
Combination of leucine-rich alpha-2 glycoprotein and fecal markers detect Crohn’s disease activity confirmed by balloon-assisted enteroscopy
Ami Kawamoto, Kento Takenaka, Shuji Hibiya, Yoshio Kitazume, Hiromichi Shimizu, Toshimitsu Fujii, Eiko Saito, Kazuo Ohtsuka, Ryuichi Okamoto
Intest Res 2024;22(1):65-74.   Published online November 9, 2023
DOI: https://doi.org/10.5217/ir.2023.00092
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Background/Aims
Endoscopic activity confirmed by enteroscopy is associated with poor clinical outcome in Crohn’s disease (CD). We investigated which of the existing biomarkers best reflects endoscopic activity in CD patients including the small bowel, and whether their combined use can improve accuracy.
Methods
One hundred and four consecutive patients with ileal and ileocolonic type CD who underwent balloon-assisted enteroscopy (BAE) from October 2021 to August 2022 were enrolled, with clinical and laboratory data prospectively collected and analyzed.
Results
Hemoglobin, platelet count, C-reactive protein, leucine-rich alpha-2 glycoprotein (LRG), fecal calprotectin, and fecal hemoglobin all showed significant difference in those with ulcers found on BAE. LRG and fecal calprotectin showed the highest areas under the curve (0.841 and 0.853) for detecting ulcers. LRG showed a sensitivity of 78% and specificity of 80% at a cutoff value of 13 μg/mL, whereas fecal calprotectin showed a sensitivity of 91% and specificity of 67% at a cutoff value of 151 μg/g. Dual positivity for LRG and fecal calprotectin, as well as LRG and fecal hemoglobin, both predicted ulcers with an improved specificity of 92% and 100%. A positive LRG or fecal calprotectin/hemoglobin showed an improved sensitivity of 96% and 91%. Positivity for LRG and either of the fecal biomarkers was associated with increased risk of hospitalization, surgery, and relapse.
Conclusions
The biomarkers LRG, fecal calprotectin, and fecal hemoglobin can serve as noninvasive and accurate tools for assessing activity in CD patients confirmed by BAE, especially when used in combination.

Citations

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    Yoshiaki Takada, Hiroki Kiyohara, Yohei Mikami, Masataka Taguri, Ryoya Sakakibara, Yasuhiro Aoki, Kosaku Nanki, Takaaki Kawaguchi, Yusuke Yoshimatsu, Shinya Sugimoto, Tomohisa Sujino, Kaoru Takabayashi, Naoki Hosoe, Haruhiko Ogata, Motohiko Kato, Yasushi
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    Fatemeh Ojaghi Shirmard, Seyed Morteza Pourfaraji, Behrad Saeedian, Tannaz Bagheri, Abdulrahman Ismaiel, Satohiro Matsumoto, Nastaran Babajani
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    Muneyori Okita, Kento Takenaka, Fumihito Hirai, Shinya Ashizuka, Hideki Iijima, Shigeki Bamba, Toshimitsu Fujii, Kenji Watanabe, Yosuke Shimodaira, Hisashi Shiga, Sakiko Hiraoka, Toshihiro Inokuchi, Takeshi Yamamura, Ryo Emoto, Shigeyuki Matsui
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    Naohiro Nakamura, Yusuke Honzawa, Yuka Ito, Yasuki Sano, Naoto Yagi, Sanshiro Kobayashi, Mamiko Aoi, Takashi Tomiyama, Tomomitsu Tahara, Norimasa Fukata, Toshiro Fukui, Makoto Naganuma
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    Kensuke Takei, Toshihiro Inokuchi, Sakiko Hiraoka, Mikako Ishiguro, Junki Toyosawa, Yuki Aoyama, Shoko Igawa, Keiko Takeuchi, Yasushi Yamasaki, Hideaki Kinugasa, Masahiro Takahara, Seiji Kawano, Toshiharu Mitsuhashi, Motoyuki Otsuka
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    Natsuki Ishida, Satoshi Tamura, Tomohiro Takebe, Kenichi Takahashi, Yusuke Asai, Tomoharu Matsuura, Mihoko Yamade, Moriya Iwaizumi, Yasushi Hamaya, Takanori Yamada, Satoshi Osawa, Ken Sugimoto
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    Jihye Park
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    Takahiro Amano, Takeo Yoshihara, Shinichiro Shinzaki, Yuko Sakakibara, Takuya Yamada, Naoto Osugi, Satoshi Hiyama, Yoko Murayama, Koji Nagaike, Hideharu Ogiyama, Toshio Yamaguchi, Yuki Arimoto, Ichizo Kobayashi, Shoichiro Kawai, Satoshi Egawa, Takashi Kiz
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Review
IBD
Gut microbiota in pathophysiology, diagnosis, and therapeutics of inflammatory bowel disease
Himani Pandey, Dheeraj Jain, Daryl W. T. Tang, Sunny H. Wong, Devi Lal
Intest Res 2024;22(1):15-43.   Published online November 8, 2023
DOI: https://doi.org/10.5217/ir.2023.00080
AbstractAbstract PDFPubReaderePub
Inflammatory bowel disease (IBD) is a multifactorial disease, which is thought to be an interplay between genetic, environment, microbiota, and immune-mediated factors. Dysbiosis in the gut microbial composition, caused by antibiotics and diet, is closely related to the initiation and progression of IBD. Differences in gut microbiota composition between IBD patients and healthy individuals have been found, with reduced biodiversity of commensal microbes and colonization of opportunistic microbes in IBD patients. Gut microbiota can, therefore, potentially be used for diagnosing and prognosticating IBD, and predicting its treatment response. Currently, there are no curative therapies for IBD. Microbiota-based interventions, including probiotics, prebiotics, synbiotics, and fecal microbiota transplantation, have been recognized as promising therapeutic strategies. Clinical studies and studies done in animal models have provided sufficient evidence that microbiota-based interventions may improve inflammation, the remission rate, and microscopic aspects of IBD. Further studies are required to better understand the mechanisms of action of such interventions. This will help in enhancing their effectiveness and developing personalized therapies. The present review summarizes the relationship between gut microbiota and IBD immunopathogenesis. It also discusses the use of gut microbiota as a noninvasive biomarker and potential therapeutic option.

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    Daniela-Cornelia Lazăr, Sorin-Dan Chiriac, George-Andrei Drăghici, Elena-Alina Moacă, Alexandra Corina Faur, Mihaela-Flavia Avram, Vladiana-Romina Turi, Mihaela-Roxana Nicolin, Adrian Goldiș, Matin Asad Salehi, Radu Jipa
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    Si Hyoung Kim, Mi Young Yoon, Sang Sun Yoon
    Annals of Medicine.2025;[Epub]     CrossRef
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    Himani Pandey, Prabudh Goel, Varunvenkat M Srinivasan, Daryl W T Tang, Sunny H Wong, Devi Lal
    World Journal of Hepatology.2025;[Epub]     CrossRef
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    Iris Pinheiro, Selin Bolca, Lien Van den Bossche, Wiebe Vanhove, Sara Van Ryckeghem, Davide Gottardi, Debby Laukens, Sam Possemiers
    International Journal of Molecular Sciences.2025; 26(13): 6167.     CrossRef
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    Taojing Yue, Yanan Lu, Wenli Ding, Bowen Xu, Cai Zhang, Lei Li, Fuchun Jian, Shucheng Huang
    Metabolites.2025; 15(7): 478.     CrossRef
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    Siyuan Bu, Xiaozhen Cheng, Meng Chen, Yongduo Yu
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    Samira Saedi, Safoura Derakhshan, Javid Sadeghi, Alka Hasani, Manouchehr Khoshbaten, Vahdat Poortahmasebi, Somayeh Ahmadi
    Letters in Applied Microbiology.2025;[Epub]     CrossRef
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    Anita Rawat, Arka Bhattacharya, Rupa Tharu, Ruchika Maurya, Sanjay Kumar Bhadada, Mahendra Bishnoi, Kanthi Kiran Kondepudi
    The Microbe.2025; 8: 100512.     CrossRef
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    Jiyoung Yoon, Daein Kim, You Sun Kim
    Intestinal Research.2025; 23(4): 430.     CrossRef
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    Luana Filippi Xavier, Ranko Gacesa, Gustavo Henrique Oliveira da Rocha, Milena Fronza Broering, Pablo Scharf, Fabiana da Silva Lima, Klaas Nico Faber, Hermie Harmsen, Christian Hoffmann, Sandra Helena Poliselli Farsky
    Frontiers in Immunology.2025;[Epub]     CrossRef
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    Foods.2025; 14(20): 3483.     CrossRef
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    Probiotics and Antimicrobial Proteins.2025;[Epub]     CrossRef
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    Rufaida Wasim
    Molecular Biology Reports.2025;[Epub]     CrossRef
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    European Journal of Medical Research.2025;[Epub]     CrossRef
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    Frontiers in Immunology.2025;[Epub]     CrossRef
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    Chengu Niu, Jing Zhang, Patrick I. Okolo
    International Journal of Food Sciences and Nutrition.2025; 76(8): 825.     CrossRef
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    Shiwei Zhang, Liang He, Luyao Zhang, Jianan Sun, Yanjun Wang, Meiling Wang, Yinquan Zhao, Xuan Sun, Yang Gong, Zhong Li, Yuchen Guo, Quan Wang
    Updates in Surgery.2025;[Epub]     CrossRef
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    Priyata Dutta, Sana Rabeeah, Alejandra Vargas, Edward C. Oldfield, David A. Johnson
    Clinical Gastroenterology and Hepatology.2025;[Epub]     CrossRef
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    Xingyu Shen, Yue Li, Deqiang Wang, Kang Sun
    Frontiers in Immunology.2025;[Epub]     CrossRef
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    Yuyuan Hu, Yuhang Yang, Yan Li, Qiang Zhang, Wei Zhang, Jinghan Jia, Zhuoyi Han, Jinxi Wang
    Frontiers in Immunology.2025;[Epub]     CrossRef
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    Devi Lal, Himani Pandey
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    Miljana Glazar, Sonia Facchin
    Academia Nutrition and Dietetics.2025;[Epub]     CrossRef
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    Yiming Li, Wenliang Zhao, Kun Zhan, Luanfeng Wang, Fang Wang, Haizhao Song, Fei Zeng, Zebin Weng, Xinchun Shen
    ACS Food Science & Technology.2025;[Epub]     CrossRef
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    Jinbo Xiong, Zunji Shi
    Frontiers in Microbiology.2024;[Epub]     CrossRef
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    Giorgio Vivacqua, Romina Mancinelli, Stefano Leone, Rosa Vaccaro, Ludovica Garro, Simone Carotti, Ludovica Ceci, Paolo Onori, Luigi Pannarale, Antonio Franchitto, Eugenio Gaudio, Arianna Casini
    Neurogastroenterology & Motility.2024;[Epub]     CrossRef
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    Neelakanta Sarvashiva Kiran, Chandrashekar Yashaswini, Rahul Maheshwari, Sankha Bhattacharya, Bhupendra G. Prajapati
    ACS Pharmacology & Translational Science.2024; 7(4): 967.     CrossRef
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    Luana Alexandrescu, Alina Doina Nicoara, Doina Ecaterina Tofolean, Alexandra Herlo, Andreea Nelson Twakor, Cristina Tocia, Anamaria Trandafir, Andrei Dumitru, Eugen Dumitru, Cristian Florentin Aftenie, Ionela Preotesoiu, Elena Dina, Ioan Tiberiu Tofolean
    International Journal of Molecular Sciences.2024; 25(15): 8451.     CrossRef
  • Effect of Mutant and Engineered High-Acetate-Producing Saccharomyces cerevisiae var. boulardii Strains in Dextran Sodium Sulphate-Induced Colitis
    Sara Deleu, Inge Jacobs, Jorge F. Vazquez Castellanos, Sare Verstockt, Bruna Trindade de Carvalho, Ana Subotić, Bram Verstockt, Kaline Arnauts, Lowie Deprez, Eva Vissers, Matthias Lenfant, Greet Vandermeulen, Gert De Hertogh, Kristin Verbeke, Gianluca Mat
    Nutrients.2024; 16(16): 2668.     CrossRef
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    Xiu Wang, Jianhua Peng, Peipei Cai, Yuxuan Xia, Chengxue Yi, Anquan Shang, Francis Atim Akanyibah, Fei Mao
    Biomedicine & Pharmacotherapy.2024; 179: 117302.     CrossRef
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    Nize Otaru, Danica Bajic, Pieter Van den Abbeele, Saskia Vande Velde, Stephanie Van Biervliet, Robert E. Steinert, Ateequr Rehman
    Microorganisms.2024; 12(10): 1977.     CrossRef
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    Nabeel Khalid Bhutta, Xiujin Xu, Cuiqin Jian, Yifan Wang, Yi Liu, Jinlyu Sun, Bingnan Han, Shandong Wu, Ansar Javeed
    Frontiers in Microbiology.2024;[Epub]     CrossRef
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    Yibing Hu, Zhenping Wu, Xiaoyun Yang, Jin Ding, Qunying Wang, Hao Fang, Lujian Zhu, Minli Hu
    BMC Microbiology.2024;[Epub]     CrossRef
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Original Articles
IBD
Ischemia-modified albumin: a novel blood marker of endoscopic mucosal healing in inflammatory bowel disease
Seung Bum Lee, Hyun-Ki Kim, Sang Hyuk Park, Ji-Hun Lim, Sang Hyoung Park
Intest Res 2024;22(1):75-81.   Published online November 1, 2023
DOI: https://doi.org/10.5217/ir.2023.00065
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Background/Aims
The achievement of endoscopic remission is an important therapeutic goal in the treatment of inflammatory bowel diseases (IBD). We aimed to evaluate the role of fecal calprotectin (FCP) and ischemia-modified albumin (IMA) as biomarkers for evaluating IBD disease activity.
Methods
A total of 48 patients with IBD (20 with ulcerative colitis and 28 with Crohn’s disease) were included in this study. FCP and serum C-reactive protein levels, erythrocyte sedimentation rate, and IMA were measured in patients with IBD and compared with endoscopic findings.
Results
Elevated FCP and serum IMA levels were significantly associated with endoscopic non-mucosal healing. The correlation between FCP and IMA was not significant. Analysis of the receiver operating characteristic curve showed that both FCP and IMA had diagnostic value in predicting non-mucosal healing. When the Ln(FCP)+IMA/10 value was calculated using both factors, the predictive value for non-mucosal healing increased; however, no significant difference was observed.
Conclusions
IMA could be a candidate serum biomarker for predicting endoscopic mucosal healing in IBD.

Citations

Citations to this article as recorded by  
  • A novel serum biomarker of endoscopic mucosal healing in inflammatory bowel disease
    Hyoun Woo Kang
    Intestinal Research.2024; 22(1): 3.     CrossRef
  • 5,261 View
  • 260 Download
  • 1 Crossref
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IBD
Insomnia is common in inflammatory bowel disease (IBD) and is associated with mental health conditions as well as IBD activity
Alex Barnes, Jane M Andrews, Sutapa Mukherjee, Robert V Bryant, Peter Bampton, Robert J. Fraser, Réme Mountifield
Intest Res 2024;22(1):104-114.   Published online November 1, 2023
DOI: https://doi.org/10.5217/ir.2023.00028
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Background/Aims
Insomnia is common in people with chronic medical conditions, such as inflammatory bowel disease (IBD), and is readily treatable through cognitive behavioral therapy for insomnia. This study aimed to describe the associations with insomnia in people with IBD and its relationship to IBD-related disability.
Methods
An online questionnaire was administered through 3 tertiary IBD centers, social media, and Crohn’s Colitis Australia. The questionnaire included the Insomnia Severity Index (ISI), a validated assessment of insomnia. Measures of anxiety, depression, physical activity, and disability were also included. IBD activity was assessed using validated patient reported scores. A multivariate model was constructed for clinically significant insomnia and ISI scores. Subpopulations of Crohn’s disease and ulcerative colitis were considered.
Results
In a cohort of 670 respondents the median age was 41 years (range, 32–70 years), with the majority female (78.4%), the majority had Crohn’s disease (57.3%). Increasingly severe disability was associated with worse insomnia score. Clinically significant insomnia was associated with clinically active IBD, abdominal pain, anxiety, and depression, in a multivariate model. In an ulcerative colitis population, Simple Clinical Colitis Activity Index components of general well-being and urgency were associated with worse ISI score in a model including depression and anxiety. In those with Crohn’s disease, the multivariate model included Harvey Bradshaw Index score in addition to depression and anxiety.
Conclusions
Insomnia is common in people with IBD and is associated with increased disability. Abdominal pain and mental health conditions should prompt consideration for screening for insomnia and referral for cognitive behavioral therapy for insomnia.

Citations

Citations to this article as recorded by  
  • The IBD Clinic of Tomorrow: Holistic, Patient-Centric, and Value-based Care
    Benjamin Click, Raymond K. Cross, Miguel Regueiro, Laurie Keefer
    Clinical Gastroenterology and Hepatology.2025; 23(3): 419.     CrossRef
  • Chronic Poor Sleep is Associated with Increased Disease Activity in Patients with Ulcerative Colitis: Prospective Observational Study in Japan
    Hideaki Oyama, Rintaro Moroi, Atsushi Sakuma, Yusuke Shimoyama, Hiroshi Nagai, Takeo Naito, Hisashi Shiga, Yoichi Kakuta, Yoshitaka Kinouchi, Atsushi Masamune
    Journal of Crohn's and Colitis.2025;[Epub]     CrossRef
  • Association between depression and anxiety with the risk and flare of inflammatory bowel disease: a systematic review and meta-analysis
    Guowei Gong, Cong Xu, Zhenxia Zhang, Yuzhong Zheng
    Internal and Emergency Medicine.2025; 20(1): 35.     CrossRef
  • The Spectrum of Psychiatric Comorbidity in Individuals With Inflammatory Bowel Disease
    Kianna Cadogan, Ruth Ann Marrie, Lesley A Graff, Renee El Gabalawy, Murray W Enns, James M Bolton, Jitender Sareen, Charles N Bernstein
    Crohn's & Colitis 360.2025;[Epub]     CrossRef
  • Type D personality, insomnia severity, perceived stress, and health-related quality of life in inflammatory bowel disease: A case–control study
    Hassan Mohammed Sonbol, Mona Metwally El-Sayed, Mahmoud Abdelwahab Khedr, Mohamad Abulhassan Ibrahim, Manar Osama, Asmaa Adel Abdel-Sattar, Hiam Fathy Elsaied, Eman Abdeen Ali, Shorouk Mohsen, Alaa Salah Abdel Mawgoud
    Journal of Psychosomatic Research.2025; 195: 112199.     CrossRef
  • Development of a technology-enhanced patient-reported outcome evaluation system for inflammatory bowel disease: A multidimensional approach to assessing survival quality
    Qian Jiang, Ling Du
    Technology and Health Care.2025;[Epub]     CrossRef
  • Fatigue in inflammatory bowel disease: a practical guide for gastroenterology clinicians
    Yaa Danso, Ailsa L Hart, James L Alexander, Calum D Moulton
    Frontline Gastroenterology.2025; : flgastro-2024-103035.     CrossRef
  • Fatigue in inflammatory bowel disease: Prevalence, risk factors, assessment, outcomes, and management
    Suprabhat Giri, Sidharth Harindranath, Akshay Kulkarni, Jiten Kumar Sahoo, Harshad Joshi, Preetam Nath, Manoj Kumar Sahu
    World Journal of Gastrointestinal Pathophysiology.2025;[Epub]     CrossRef
  • The impact of sleep quality on the prognosis of inflammatory bowel disease commonly overlooked by gastroenterologists
    Ji Young Chang
    Intestinal Research.2024; 22(1): 5.     CrossRef
  • Sleep quality is associated with reduced quality of life in inflammatory bowel disease through its interaction with pain
    Alex Barnes, Robert V Bryant, Sutapa Mukherjee, Paul Spizzo, Réme Mountifield
    JGH Open.2024;[Epub]     CrossRef
  • Abdominal Pain in Inflammatory Bowel Disease-Epidemiology, Pathophysiology, and Management: A Narrative Review
    Wei-wei Tan, Zi-xuan Liu, Xiao-Yan Liu, Wei-bing Zhang, Lie Zheng, Ya-Li Zhang, Yan-Cheng Dai
    Pain and Therapy.2024; 13(6): 1447.     CrossRef
  • Impact of Inflammatory Bowel Disease on Patient’s Quality of Life – A Review
    Kamila Duszyńska, Karol Dolepski, Alicja Góral, Krystian Żuk, Michał Czachajda
    Journal of Health Study and Medicine.2024; 2024(1): 185.     CrossRef
  • 9,849 View
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Review
IBD
Treatment of primary sclerosing cholangitis combined with inflammatory bowel disease
You Sun Kim, Edward H. Hurley, Yoojeong Park, Sungjin Ko
Intest Res 2023;21(4):420-432.   Published online September 1, 2023
DOI: https://doi.org/10.5217/ir.2023.00039
AbstractAbstract PDFPubReaderePub
Primary sclerosing cholangitis (PSC) is a progressive cholestatic, inflammatory, and fibrotic disease that is strongly associated with inflammatory bowel disease (IBD). PSC-IBD represents a unique disease entity and patients with this disease have an increased risk of malignancy development, such as colorectal cancer and cholangiocarcinoma. The pathogenesis of PSC-IBD involves genetic and environmental factors such as gut dysbiosis and bile acids alteration. However, despite the advancement of disease characteristics, no effective medical therapy has proven to have a significant impact on the prognosis of PSC. The treatment options for patients with PSC-IBD do not differ from those for patients with PSC alone. Potential candidate drugs have been developed based on the pathogenesis of PSC-IBD, such as those that target modulation of bile acids, inflammation, fibrosis, and gut dysbiosis. In this review, we summarize the current medical treatments for PSC-IBD and the status of new emerging therapeutic agents.

Citations

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  • Hepatic Nuclear Receptors in Cholestasis-to-Cholangiocarcinoma Pathology
    Inyoung Cheon, Minwook Kim, Kang Ho Kim, Sungjin Ko
    The American Journal of Pathology.2025; 195(3): 409.     CrossRef
  • Documento de posicionamiento de la Sociedad Española de Médicos de Atención Primaria (SEMERGEN) y del Grupo Español de Trabajo en Enfermedad de Crohn y Colitis Ulcerosa (GETECCU) sobre el manejo de la enfermedad inflamatoria intestinal en atención primari
    Daniel Ginard, Noelia Fontanillas, Iria Bastón-Rey, M. Elena Pejenaute, Marta Piqueras, Silvia Alcalde, Pilar Nos, Mercedes Ricote, Lucía Expósito, Míriam Mañosa, Manuel Barreiro-de Acosta, Francisco Rodríguez-Moranta, Yamile Zabana, José Polo, Ana Gutiér
    Gastroenterología y Hepatología.2025; 48(3): 502255.     CrossRef
  • Documento de posicionamiento de la Sociedad Española de Médicos de Atención Primaria (SEMERGEN) y del Grupo Español de Trabajo en Enfermedad de Crohn y Colitis Ulcerosa (GETECCU) sobre el manejo de la enfermedad inflamatoria intestinal en atención primari
    Daniel Ginard, Noelia Fontanillas, Iria Bastón-Rey, M. Elena Pejenaute, Marta Piqueras, Silvia Alcalde, Pilar Nos, Mercedes Ricote, Lucía Expósito, Míriam Mañosa, Manuel Barreiro-de Acosta, Francisco Rodríguez-Moranta, Yamile Zabana, José Polo, Ana Gutiér
    Medicina de Familia. SEMERGEN.2025; 51(3): 102334.     CrossRef
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    Daniel Ginard, Noelia Fontanillas, Iria Bastón-Rey, M. Elena Pejenaute, Marta Piqueras, Silvia Alcalde, Pilar Nos, Mercedes Ricote, Lucía Expósito, Míriam Mañosa, Manuel Barreiro-de Acosta, Francisco Rodríguez-Moranta, Yamile Zabana, José Polo, Ana Gutiér
    Gastroenterología y Hepatología (English Edition).2025; 48(3): 502255.     CrossRef
  • Incidence, Risk Factors, and Outcomes of Chronic Antibiotic-Refractory Pouchitis in Korean Patients with Ulcerative Colitis
    Ji Eun Baek, Jung-Bin Park, June Hwa Bae, Min Hyun Kim, Seung Wook Hong, Sung Wook Hwang, Jong Lyul Lee, Yong Sik Yoon, Dong-Hoon Yang, Byong Duk Ye, Jeong-Sik Byeon, Seung-Jae Myung, Chang Sik Yu, Suk-Kyun Yang, Sang Hyoung Park
    Gut and Liver.2025; 19(3): 388.     CrossRef
  • Prevalence and risk factors of gallstone disease in Korean patients with ulcerative colitis
    Kwangwoo Nam, Jae Yong Lee, Sang Hyoung Park, Ha Won Hwang, Ho-Su Lee, Kyunghwan Oh, Hee Seung Hong, Kyuwon Kim, Jin Hwa Park, Seung Wook Hong, Sung Wook Hwang, Dong-Hoon Yang, Byong Duk Ye, Jeong-Sik Byeon, Seung-Jae Myung, Suk-Kyun Yang
    Intestinal Research.2025; 23(4): 455.     CrossRef
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    Aalam Sohal, Kris V. Kowdley
    Expert Opinion on Investigational Drugs.2024; 33(4): 335.     CrossRef
  • Gut Microbiota in Primary Sclerosing Cholangitis: From Prognostic Role to Therapeutic Implications
    Valeria Maccauro, Francesca Fianchi, Antonio Gasbarrini, Francesca Romana Ponziani
    Digestive Diseases.2024; 42(4): 369.     CrossRef
  • Global research trends on the relationship between IBD and CRC: a bibliometric analysis from 2000 to 2023
    Hao Zhang, Huiru Xin, Mengqi Zhao, Chenyang Bi, Yafei Xiao, Yifan Li, Changjiang Qin
    Journal of Health, Population and Nutrition.2024;[Epub]     CrossRef
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    Xiao Xian Qian
    Intestinal Research.2024; 22(3): 387.     CrossRef
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    M.B. Dyba, V.S. Berezenko
    GASTROENTEROLOGY.2024; 58(4): 270.     CrossRef
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Original Articles
IBD
Malnutrition and inflammation status in nonobese patients with inflammatory bowel disease are associated with nonalcoholic fatty liver disease: a retrospective study
Takahiro Nagata, Sadahiro Funakoshi, Daisuke Morihara, Satoshi Shakado, Keiji Yokoyama, Kazuhide Takata, Takashi Tanaka, Atsushi Fukunaga, Ryo Yamauchi, Hiromi Fukuda, Hiroki Matsuoka, So Imakiire, Hideto Sakisaka, Satoshi Matsuoka, Nobuaki Kuno, Koichi Abe, Hideki Ishibashi, Shinya Ashizuka, Fumihito Hirai
Intest Res 2023;21(4):471-480.   Published online August 11, 2023
DOI: https://doi.org/10.5217/ir.2023.00035
AbstractAbstract PDFPubReaderePub
Background/Aims
The frequency and details of nonalcoholic fatty liver disease (NAFLD) complications in patients with inflammatory bowel disease (IBD) remain unclear. This study aimed to clarify characteristics of NAFLD in patients with IBD.
Methods
We retrospectively identified and enrolled patients with IBD diagnosed with or without NAFLD by undergoing abdominal computed tomography (CT) at our institution between 2005 and 2020. The primary endpoint was the complication rate of NAFLD in patients with IBD. Secondary endpoints were the clinical characteristics of nonobese patients with IBD and comorbid NAFLD and their association with nutritional and inflammatory parameters.
Results
Twenty-one (21.9%) of 96 eligible patients with IBD also had NAFLD. In nonobese patients (defined as patients with a body mass index <25 kg/m2), C-reactive protein (CRP; P<0.001) and alanine aminotransferase (P=0.018) levels were higher and the albumin level (P=0.005) and prognostic nutritional index (PNI; P=0.002) values were lower in patients with NAFLD than in those without NAFLD. The PNI value was positively correlated (P<0.001) and the CRP level was negatively correlated (P=0.001) with the hepatosplenic ratio. However, in the NAFLD combined group, PNI (P<0.05) and CRP values (P<0.001) were improved over time after CT imaging by continuing IBD treatment.
Conclusions
Worsening nutritional and inflammatory status in IBD patients is associated with complications of NAFLD. Diagnosis of NAFLD in IBD patients using CT imaging might be useful not only for early detection of NAFLD but also in assessing the need for therapeutic intervention for IBD.

Citations

Citations to this article as recorded by  
  • Elucidating the association between nonalcoholic fatty liver disease and incidence of inflammatory bowel disease: a focus on systemic inflammation
    Sihyun Kim, Jong Pil Im
    Intestinal Research.2025; 23(1): 3.     CrossRef
  • Metabolic Disorders and Inflammatory Bowel Diseases
    Hye Kyung Hyun, Jae Hee Cheon
    Gut and Liver.2025; 19(3): 307.     CrossRef
  • Impact of body mass index on clinical outcomes in intestinal Behçet’s disease
    Daye Park, Jihye Park, Soo Jung Park, Jae Jun Park, Tae Il Kim, Jae Hee Cheon
    The Korean Journal of Internal Medicine.2025; 40(4): 606.     CrossRef
  • Prevalence and Associated Factors of Nonalcoholic Fatty Liver Disease in Patients with Inflammatory Bowel Disease: An Updated Global Systematic Review and Meta-Analysis of over 1.5 Million Individuals
    Narsimha Keetha Rao, Shahriar Ghodous, Anoop Gurram, Mehrdad Khorasani, Madhusudhan Ponnala, Arman Habibi, Kwame Agyeman, Parsa Saberian, Pubali Biswas, Negin Letafatkar, Simran Joshi, Yasmin Sahli, Reza Amani-Beni, Bahar Darouei, Yussif Issaka, Kiran San
    Inflammatory Bowel Diseases.2025;[Epub]     CrossRef
  • 5,519 View
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IBD
Infectious complications in patients with inflammatory bowel disease in Asia: the results of a multinational web-based survey in the 8th Asian Organization for Crohn’s and Colitis meeting
Yu Kyung Jun, Seong-Joon Koh, Dae Seong Myung, Sang Hyoung Park, Choon Jin Ooi, Ajit Sood, Jong Pil Im
Intest Res 2023;21(3):353-362.   Published online July 27, 2023
DOI: https://doi.org/10.5217/ir.2023.00013
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Background/Aims
Infectious complications are major concerns when treating patients with inflammatory bowel disease (IBD). This study evaluated clinical differences across countries/regions in the management of infectious diseases in patients with IBD.
Methods
A multinational online questionnaire survey was administered to participants at the 8th meeting of the Asian Organization for Crohn’s and Colitis. The questionnaire included questions regarding surveillance, diagnosis, management, and prevention of infection in patients with IBD.
Results
A total of 384 physicians responded to the questionnaire. The majority of Korean (n=70, 63.6%) and Chinese (n=51, 51.5%) physicians preferred vancomycin to metronidazole in the treatment of Clostridium difficile infection, whereas more than half of the Japanese physicians (n=62, 66.7%) preferred metronidazole. Physicians in Korea (n=88, 80.0%) and China (n=46, 46.5%) preferred a 3-month course of isoniazid and rifampin to treat latent tuberculosis infection, whereas most physicians in Japan (n=71, 76.3%) favored a 9-month course of isoniazid. Most Korean physicians (n=89, 80.9%) recommended hepatitis B virus (HBV) vaccination in patients lacking HBV surface antigen, whereas more than half of Japanese physicians (n=53, 57.0%) did not consider vaccination.
Conclusions
Differences in the diagnosis, prevention, and management of infections in patients with IBD across countries/regions reflect different prevalence rates of infectious diseases. This survey may broaden understanding of the real-world clinical settings across Asian countries/regions and provide information for establishing practical guidelines to manage patients with IBD.

Citations

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IBD
Diagnosis of inflammatory bowel disease–Asian perspectives: the results of a multinational web-based survey in the 8th Asian Organization for Crohn’s and Colitis meeting
Han Hee Lee, Jae Jun Park, Bo-In Lee, Ida Hilmi, Jose Sollano, Zhi Hua Ran
Intest Res 2023;21(3):328-338.   Published online July 27, 2023
DOI: https://doi.org/10.5217/ir.2023.00012
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Background/Aims
Inflammatory bowel disease (IBD) is no longer a rare disease in Asia, thus it needs to prepare recommendations relevant to Asian patients. This study aimed to identify disparities in the process of the diagnosis of IBD in Asian countries/regions.
Methods
In line with the 2020 Asian Organization for Crohn’s and Colitis annual meeting, a multinational web-based survey about Asian physicians’ perspectives on IBD was conducted.
Results
A total of 384 Asian physicians (99 in China, 93 in Japan, 110 in Korea, and 82 in other Asian countries/regions) treating IBD patients from 24 countries/regions responded to the survey. Most respondents were gastroenterologists working in an academic teaching hospital. About half of them had more than 10 years of clinical experience in caring for patients with IBD. The European Crohn’s Colitis Organisation guideline was used most commonly for the diagnosis of IBD except for Japanese physicians who preferred their own national guideline. The Mayo score and Crohn’s Disease Activity Index were the most commonly used activity scoring systems for ulcerative colitis and Crohn’s disease, respectively. Endoscopy, not surprisingly, was the main investigation in assessing the extent and activity of IBD. On the other hand, there were disparities across countries/regions with regard to the favored modalities of small bowel and perianal evaluation of Crohn’s disease, as well as the use of serologic markers.
Conclusions
Results of the present survey revealed practical behaviors of Asian physicians in the diagnosis of IBD. Investigating the reasons for different diagnostic approaches among countries/regions might help us develop Asian guidelines further.

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IBD
Treatment of inflammatory bowel disease–Asian perspectives: the results of a multinational web-based survey in the 8th Asian Organization for Crohn’s and Colitis meeting
Eun Mi Song, Soo-Young Na, Sung Noh Hong, Siew Chien Ng, Tadakazu Hisamatsu, Byong Duk Ye
Intest Res 2023;21(3):339-352.   Published online July 27, 2023
DOI: https://doi.org/10.5217/ir.2022.00135
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Background/Aims
As the characteristics of inflammatory bowel disease (IBD) differ between Asians and Westerners, it is necessary to determine adequate therapeutic strategy for Asian IBD patients. We evaluated the current treatment of IBD in Asian countries/regions using a web-based survey.
Methods
The Korean Association for the Study of Intestinal Diseases conducted a multinational web-based survey for current IBD care in Asia between September 16, 2020, and November 13, 2020.
Results
A total of 384 doctors treating IBD patients from 24 Asian countries/regions responded to the survey. Anti-tumor necrosis factor (TNF) agents, anti-integrins, and anti-interleukin-12/23 agents were available for use by 93.8%, 72.1%, and 70.1% of respondents in Asian countries/regions. Compared with a previous survey performed in 2014, an increased tendency for treatment with biologics, including anti-TNF agents, was observed. In the treatment of corticosteroid-refractory acute severe ulcerative colitis, 72.1% of respondents chose anti-TNF agents, followed by tacrolimus (11.7%). In the treatment of corticosteroid-refractory Crohn’s disease, 90.4% chose anti-TNF agents, followed by thiopurines (53.1%), anti-interleukin-12/23 agents (39.3%), and anti-integrin agents (35.7%). In the treatment of Crohn’s disease patients refractory to anti-TNF agents, the most preferred strategy was to measure serum levels of anti-TNF and anti-drug antibodies (40.9%), followed by empiric dose escalation or shortening of dosing intervals (25.3%).
Conclusions
Although there were some differences, treatment strategies for patients with IBD were mostly similar among Asian doctors. Based on the therapeutic outcomes, it is necessary to identify the most appropriate therapeutic strategy for Asian IBD patients.

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