Intestinal Research

Histologic healing and clinical outcomes in ulcerative colitis: Raymond Fueng-Hin Liang, Huiyu Lin, Cora Yuk-Ping Chau, Wee Chian Lim; Received April 21, 2024 Accepted July 22, 2024 Published online September 19, 2024; DOI: https://doi.org/10.5217/ir.2024.00058 [Epub ahead of print]

Abstract PDF PubReader ePub: Background/Aims
Growing evidence suggests histologic healing (HH) improves clinical outcomes in ulcerative colitis (UC) patients beyond endoscopic healing (EH). We hypothesize that HH is associated with better clinical outcomes in Asian UC patients, for whom data is lacking.
Methods
We performed a retrospective study of UC patients in clinical remission (CR) with a follow-up colonoscopy and minimum 1-year follow-up post-colonoscopy. Primary outcome was clinical relapse (CRL), defined as either a Simple Clinical Colitis Activity Index score of > 2, medication escalation, hospitalization or colectomy. Predictors of CRL and HH were assessed.
Results
One hundred patients were included with a median follow-up of 22 months. At index colonoscopy, 80 patients were in EH. On follow-up, 41 patients experienced CRL. Of 80 patients in EH, 34 (42.5%) had persistent histologic activity (Nancy Index ≥ 2) and 29 (36.3%) relapsed during the follow-up period. Amongst patients in CR and EH, those with HH had lower CRL rate (26.1% vs. 50.0%, P= 0.028) and longer CRL-free survival (mean 46.1 months vs. 31.5 months, P= 0.015) than those with persistent histologic activity. On bivariable analysis of 100 patients in CR, HH, and Mayo endoscopic score (MES) of 0 were significantly associated with lower risk of CRL. On multivariable analysis, only MES 0 remained predictive of lower CRL risk.
Conclusions
Above and beyond CR and EH, achieving HH improves clinical outcomes in Asian UC patients. However, HH may not confer incremental benefit if MES 0 has been achieved. Further prospective studies evaluating the benefit of histologically guided therapeutic decisions are needed.

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Combined eosinophilic gastroenteritis and ulcerative colitis successfully treated by vedolizumab: a case report: Hironobu Takedomi, Kayoko Fukuda, Suma Inoue, Nanae Tsuruoka, Yasuhisa Sakata, Shigehisa Aoki, Motohiro Esaki; Received January 22, 2024 Accepted April 1, 2024 Published online August 29, 2024; DOI: https://doi.org/10.5217/ir.2024.00013 [Epub ahead of print]

Abstract PDF PubReader ePub: A 47-year-old man with over 10 years’ duration of ulcerative colitis treated by 5-aminosalicylic acid and intermittent topical steroids complained of acute epigastric pain. Esophagogastroduodenoscopy revealed diffuse mucosal edema with patchy redness, multiple erosions and nodularity of the stomach. Bioptic examination revealed marked eosinophilic infiltration, confirming the diagnosis of eosinophilic gastroenteritis. Systemic steroid therapy was initiated, whereas his ulcerative colitis and eosinophilia recurred when tapering the steroid. Addition of azathioprine was ineffective, and we subsequently started vedolizumab for eosinophilic gastroenteritis and ulcerative colitis. The medication effectively improved his abdominal symptoms and esophagogastroduodenoscopy and ileocolonoscopy 1 year later revealed endoscopic improvement of both diseases with histologically decreased level of eosinophilic infiltration. Considering that eosinophils also express α4β7 integrins, vedolizumab can be a possible therapeutic candidate for eosinophilic gastroenteritis as well as ulcerative colitis.

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The prevalence of pouch fistulas in ulcerative colitis following restorative proctocolectomy: a systematic review and meta-analysis: Sheng Wei Lo, Ishaan Dharia, Danujan Sriranganathan, Maia Kayal, Edward L. Barnes, Jonathan P. Segal; Received January 17, 2024 Accepted May 9, 2024 Published online August 9, 2024; DOI: https://doi.org/10.5217/ir.2024.00009 [Epub ahead of print]

Abstract PDF Supplementary Material PubReader ePub: Background/Aims
One complication of restorative proctocolectomy with ileo-anal pouch anastomosis is fistula formation in the pouch. Fistulas can be associated with significant morbidity and pouch failure. We conducted a systematic review with meta- analysis to try and understand the prevalence of pouch fistulas in patients with ulcerative colitis following restorative proctocolectomy.
Methods
The Embase, Embase Classic, and PubMed databases were searched between January 1979 and April 2022. Studies were included if there were cross-sectional, case-controlled, population-based or cohort studies reporting on prevalence of pouch fistulas in ulcerative colitis. Studies had to report the number of patients with pouch fistulas using either clinical, endoscopic, or radiological diagnosis in an adult population.
Results
Thirty-three studies screened met the inclusion criteria. The pooled prevalence of developing at least 1 fistula was 0.05 (95% confidence interval [CI], 0.04–0.07). The pooled prevalence of pouch failure in patients with pouch fistula was found to be 0.24 (95% CI, 0.19–0.30). The pooled prevalence of developing a pouch fistula at 3 years, 5 years and more than 5 years was 0.04 (95% CI, 0.02–0.07), 0.05 (95% CI, 0.02–0.07), and 0.05 (95% CI, 0.02–0.10), respectively.
Conclusions
This is the first systematic review and meta-analysis to report the prevalence of pouch fistula. It also provides a pooled prevalence of pouch failure in these patients. These results can help to shape future guidelines, power future studies, and help counsel patients.

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IBD

Management of ulcerative colitis in Taiwan: consensus guideline of the Taiwan Society of Inflammatory Bowel Disease updated in 2023: Hsu-Heng Yen, Jia-Feng Wu, Horng-Yuan Wang, Ting-An Chang, Chung-Hsin Chang, Chen-Wang Chang, Te-Hsin Chao, Jen-Wei Chou, Yenn-Hwei Chou, Chiao-Hsiung Chuang, Wen-Hung Hsu, Tzu-Chi Hsu, Tien-Yu Huang, Tsung-I Hung, Puo-Hsien Le, Chun-Che Lin, Chun-Chi Lin, Ching-Pin Lin, Jen-Kou Lin, Wei-Chen Lin, Yen-Hsuan Ni, Ming-Jium Shieh, I-Lun Shih, Chia-Tung Shun, Tzung-Jiun Tsai, Cheng-Yi Wang, Meng-Tzu Weng, Jau-Min Wong, Deng-Chyang Wu, Shu-Chen Wei; Intest Res 2024;22(3):213-249. Published online July 29, 2024; DOI: https://doi.org/10.5217/ir.2023.00050

Abstract PDF PubReader ePub

Ulcerative colitis (UC) is a chronic inflammation of the gastrointestinal tract and is characterized by alternating periods of inflammation and remission. Although UC incidence is lower in Taiwan than in Western countries, its impact remains considerable, demanding updated guidelines for addressing local healthcare challenges and patient needs. The revised guidelines employ international standards and recent research, emphasizing practical implementation within the Taiwanese healthcare system. Since the inception of the guidelines in 2017, the Taiwan Society of Inflammatory Bowel Disease has acknowledged the need for ongoing revisions to incorporate emerging therapeutic options and evolving disease management practices. This updated guideline aims to align UC management with local contexts, ensuring comprehensive and context-specific recommendations, thereby raising the standard of care for UC patients in Taiwan. By adapting and optimizing international protocols for local relevance, these efforts seek to enhance health outcomes for patients with UC.

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Rescue Therapies for Steroid-refractory Acute Severe Ulcerative Colitis: A Systematic Review and Network Meta-analysis
Chih-Wen Huang, Hsu-Heng Yen, Yang-Yuan Chen
Journal of Crohn's and Colitis.2024;[Epub] CrossRef

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IBD

Long-term efficacy and safety of tofacitinib in patients with ulcerative colitis: 3-year results from a real-world study: Hiromichi Shimizu, Yuko Aonuma, Shuji Hibiya, Ami Kawamoto, Kento Takenaka, Toshimitsu Fujii, Eiko Saito, Masakazu Nagahori, Kazuo Ohtsuka, Ryuichi Okamoto; Intest Res 2024;22(3):369-377. Published online July 16, 2024; DOI: https://doi.org/10.5217/ir.2023.00194

Abstract PDF Supplementary Material PubReader ePub: Background/Aims
The efficacy and safety of tofacitinib for the treatment of refractory ulcerative colitis (UC) has been demonstrated in clinical trials. Although, a series of reports with real-world evidence of its short-term efficacy and safety profiles have already been published, reports of long-term real-world data have been limited. We aimed to show our 3-year evidence on the clinical use of tofacitinib for the treatment of UC, focusing on its efficacy and safety profiles.
Methods
A retrospective observational study was conducted on patients who started tofacitinib for active refractory UC at our hospital. The primary outcome was the retention rate until 156 weeks after initiating tofacitinib. The secondary outcomes were short-term efficacy at 4, 8, and 12 weeks; long-term efficacy at 52, 104, and 156 weeks; prognostic factors related to the cumulative retention rate; loss of response; and safety profile, including adverse events.
Results
Forty-six patients who were able to be monitored for up to 156 weeks after tofacitinib initiation, were enrolled in this study. Continuation of tofacitinib was possible until 156 weeks in 54.3%, with > 50% response rates and > 40% remission rates. Among patients in whom response or remission was achieved and tofacitinib was deescalated after 8 weeks of induction treatment, 54.3% experienced relapse but were successfully rescued by and retained on reinduction treatment, except for 1 patient. No serious AEs were observed in the study.
Conclusions
Tofacitinib is effective and safe as long-term treatment in a refractory cohort of UC patients in real-world clinical practice.

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Filgotinib induction-study baseline characteristics of patients with ulcerative colitis who achieve sustained corticosteroid-free remission: post hoc analysis of the phase 2b/3 SELECTION study: Taku Kobayashi, Axel Dignass, Xavier Roblin, Yoshie Takatori, Toshihiko Kaise, Alessandra Oortwijn, Corinne Jamoul, Toshifumi Hibi; Received January 17, 2024 Accepted April 15, 2024 Published online June 14, 2024; DOI: https://doi.org/10.5217/ir.2024.00007 [Epub ahead of print]

Abstract PDF Supplementary Material PubReader ePub: Background/Aims
Obtaining and maintaining corticosteroid-free remission are important goals of treatment for ulcerative colitis (UC). Characteristics associated with achieving corticosteroid-free remission were assessed in filgotinib-treated patients in SELECTION, a 58-week, phase 2b/3 trial in moderately to severely active UC.
Methods
This post hoc analysis used data from filgotinib-treated patients receiving corticosteroids at maintenance baseline in SELECTION. Univariate logistic regression was performed to assess induction baseline characteristics associated with 6 months of corticosteroid-free remission at week 58, defined as clinical remission without using corticosteroids for at least 6 months.
Results
At maintenance baseline, 92 and 81 patients were receiving corticosteroids in the filgotinib 200 mg and filgotinib 100 mg groups, respectively. Age, body mass index, history of pancolitis, disease duration, fecal calprotectin levels, C-reactive protein levels, Mayo Clinic Score, concomitant corticosteroids, immunomodulators, and aminosalicylates had no statistically significant effect on the likelihood of achieving corticosteroid-free remission. Baseline characteristics associated with increased odds of corticosteroid-free remission were Mayo Clinic Endoscopic Subscore of 2 (vs. 3) in the filgotinib 200 mg and filgotinib 100 mg groups, and female (vs. male) sex, current (vs. former or never) smoking, and being biologic‑naive (vs. experienced) in the filgotinib 200 mg group.
Conclusions
Steroid tapering can be achieved in patients with UC receiving filgotinib 200 mg independently of baseline characteristics such as clinical activity and duration of illness. However, the likelihood of achieving corticosteroid-free remission was higher among patients who were biologic-naive, current smokers, had low endoscopic inflammatory burden and who were female.

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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; Received December 31, 2023 Accepted April 15, 2024 Published online June 5, 2024; DOI: https://doi.org/10.5217/ir.2024.00001 [Epub ahead of print]

Abstract PDF PubReader ePub: 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.

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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; Received September 27, 2023 Accepted April 9, 2024 Published online June 5, 2024; DOI: https://doi.org/10.5217/ir.2023.00135 [Epub ahead of print]

Abstract PDF PubReader ePub: 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.

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Predictors of histologic remission in patients with biologic-naïve, moderate-to-severe ulcerative colitis treated with first-line biologic agents and small-molecule drugs: a single-center, retrospective cohort study: Kijae Jo, Kwang Woo Kim, Hyun Jung Lee, Jong Pil Im, Joo Sung Kim, Seong-Joon Koh; Received March 20, 2024 Accepted April 15, 2024 Published online May 22, 2024; DOI: https://doi.org/10.5217/ir.2024.00044 [Epub ahead of print]

Abstract PDF PubReader ePub: Background/Aims
The prevalence and incidence of ulcerative colitis (UC) in Korea is increasing. Each patient has a different disease course and treatment response. Recently, with the development of biologic agents, histological remission has become a treatment goal. In this study, we aimed to identify the predictors of histological remission after first-line biologic agent treatment in patients with biologic agent-naïve UC.
Methods
We retrospectively analyzed the medical records of 92 patients who had been diagnosed with UC and treated with first-line biologic agent treatment at our center, between 2015 and 2022. The clinical characteristics, laboratory test results, and endoscopic and biopsy findings were analyzed. Histological remission was defined as the absence of cryptitis, crypt abscesses, and inflammatory cells on histology. Univariate and multivariate logistic regression analyses were performed to identify the predictors of histological remission after first-line treatment.
Results
Of the total 92 patients, 25 (27.2%) achieved histological remission. Each cohort had a varied body mass index (BMI) distribution, with a statistically significant overweight ratio, as defined by the Asian-Pacific BMI category of 23–25 kg/m², of 48.0% in the histological remission cohort (P= 0.026). A causal correlation between the overweight category and histological remission was confirmed (odds ratio, 3.883; 95% confidence interval, 1.141–13.212; P= 0.030).
Conclusions
We confirmed that the overweight category was a predictor of histological remission after first-line treatment with a biological agent. However, as BMI does not account for skeletal muscle mass, future studies are required to confirm the correlation between skeletal muscle mass and histological remission.

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What to do when traditional rescue therapies fail in acute severe ulcerative colitis: Christopher F. D. Li Wai Suen, Matthew C. Choy, Peter De Cruz; Received January 7, 2024 Accepted March 22, 2024 Published online May 16, 2024; DOI: https://doi.org/10.5217/ir.2024.00003 [Epub ahead of print]

Abstract PDF PubReader ePub: Acute severe ulcerative colitis (ASUC) is a medical emergency that affects approximately 25% of patients with ulcerative colitis at some point in time in their lives. Outcomes of ASUC are highly variable. Approximately 30% of patients do not respond to corticosteroids and up to 50% of patients do not respond to rescue therapy (infliximab or cyclosporin) and require emergency colectomy. Data are emerging on infliximab dosing strategies, use of cyclosporin as a bridge to slower acting biologic agents and Janus kinase inhibition as primary and sequential therapy. In this review, we outline contemporary approaches to clinical management of ASUC in the setting of failure to respond to traditional rescue therapies.

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IBD

Changes in the clinical course and prognosis of ulcerative colitis in Chinese populations: a retrospective cohort study: Xinyu Liu, Qingfan Yang, Na Diao, Jian Tang, Zicheng Huang, Xiang Gao, Kang Chao; Intest Res 2024;22(3):357-368. Published online May 7, 2024; DOI: https://doi.org/10.5217/ir.2023.00106

Abstract PDF Supplementary Material PubReader ePub: Background/Aims
Data on the natural course of Chinese patients with ulcerative colitis (UC) was lacking. This study aimed to evaluate the natural history and prognosis of patients with UC in the past 15 years in China.
Methods
This cohort study included patients with UC in a tertiary hospital in southern China from 2007 to 2021 (cohort I: 2007–2011, cohort II: 2012–2016, cohort III: 2017–2021). Patients’ clinical characteristics and natural history were analyzed retrospectively.
Results
Of 1,139 included patients, 683 patients presented with proctitis or left-sided colitis at diagnosis and 38.5% of them (263/683) developed proximal disease extension. Fifty-eight percent of patients experienced relapse, chronic continuous and intermittent active course. Five patients (0.4%) developed colorectal tumors/dysplasia. The overall surgery rate was 8.6%, and the rates were 14.2%, 7.8%, and 8.0% in the 3 cohorts, respectively (P= 0.059). Average time from diagnosis to surgery decreased from cohorts I to III (144 months vs. 36 months, P< 0.001), so did the use of glucocorticoids (58.2% vs. 43.5%, P< 0.001) and immunosuppressants (14.1% vs. 13.4%, P= 0.016), and days of hospitalization (13 days vs. 9 days, P< 0.001). Biologics were used more frequently during the first year (0.8%, 2.1%, and 13.7% for cohorts I to III, respectively; P< 0.001). The rate of mucosal healing increased over time.
Conclusions
In Chinese UC patients, one-third of patients experienced proximal disease extension. The rates of malignancy and mortality were low. More biologics were used, while use of immunosuppressants and glucocorticoids were reduced over time. Early biologics use seemed to promote mucosal healing, but the rate of colectomy has not dramatically decreased.

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IBD

Efficacy and safety of mirikizumab as induction and maintenance therapy for Japanese patients with moderately to severely active ulcerative colitis: a subgroup analysis of the global phase 3 LUCENT-1 and LUCENT-2 studies: Taku Kobayashi, Katsuyoshi Matsuoka, Mamoru Watanabe, Tadakazu Hisamatsu, Fumihito Hirai, Joe Milata, Xingyuan Li, Nathan Morris, Vipin Arora, Tomoko Ishizuka, Koji Matsuo, Yoichi Satoi, Catherine Milch, Toshifumi Hibi; Intest Res 2024;22(2):172-185. Published online April 25, 2024; DOI: https://doi.org/10.5217/ir.2023.00043

Abstract PDF Supplementary Material PubReader ePub: Background/Aims
Mirikizumab is a p19-directed anti-interleukin-23 antibody with potential efficacy against ulcerative colitis (UC). We evaluated the efficacy and safety of mirikizumab in a Japanese subpopulation with moderately to severely active UC from the LUCENT-1 and LUCENT-2 studies.
Methods
LUCENT-1 and LUCENT-2 were phase 3, randomized, double-blind, placebo-controlled trials of mirikizumab therapy in adults with moderately to severely active UC. LUCENT-1 was a 12-week induction trial where patients were randomized 3:1 to receive intravenous mirikizumab 300 mg or placebo every 4 weeks (Q4W). Patients achieving a clinical response with mirikizumab following the induction study were re-randomized 2:1 to double-blind treatment with either mirikizumab 200 mg or placebo subcutaneously Q4W during the 40-week maintenance study. The primary outcomes were clinical remission at week 12 of LUCENT-1 and week 40 of LUCENT-2.
Results
A total of 137 patients enrolled in Japan were randomized to mirikizumab (n = 102) or placebo (n = 35). Compared with placebo, patients who received mirikizumab showed numerically higher clinical remission at week 12 of induction (32.4% [n = 33] vs. 2.9% [n = 1]) and at week 40 of maintenance (48.9% [n = 23] vs. 28.0% [n = 7]). A greater number of patients achieved key secondary endpoints in the mirikizumab group compared with placebo. The frequency of treatment-emergent adverse events was similar across mirikizumab and placebo groups. Efficacy and safety results observed in the Japanese subpopulation were generally consistent with those in the overall population.
Conclusions
Mirikizumab induction and maintenance treatments were effective in Japanese patients with moderately to severely active UC. No new safety concerns were identified.

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The evolving understanding of histology as an endpoint in ulcerative colitis: Shintaro Akiyama, Yusuke Miyatani, David T. Rubin; Received September 13, 2023 Accepted January 24, 2023 Published online March 13, 2024; DOI: https://doi.org/10.5217/ir.2023.00120 [Epub ahead of print]

Abstract PDF PubReader ePub

A therapeutic goal for patients with ulcerative colitis (UC) is deep remission including clinical remission and mucosal healing. Mucosal healing was previously defined by endoscopic appearance, but recent studies demonstrate that histological improvements can minimize the risks of experiencing clinical relapse after achieving endoscopic remission, and there is growing interest in the value and feasibility of histological targets of treatment in inflammatory bowel disease, and specifically UC. In this review article, we identify remaining challenges and discuss an evolving role of histology in the management of UC.

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Patients with ulcerative colitis who have normalized histology are clinically stable after de-escalation of therapy
Shintaro Akiyama, Joëlle St-Pierre, Cindy Traboulsi, Alexa Silfen, Victoria Rai, Tina G. Rodriguez, Amarachi I. Erondu, Joshua M. Steinberg, Seth R. Shaffer, Britt Christensen, David T. Rubin
npj Gut and Liver.2024;[Epub] CrossRef

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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; Received July 4, 2023 Accepted December 22, 2023 Published online February 21, 2024; DOI: https://doi.org/10.5217/ir.2023.00078 [Epub ahead of print]

Abstract PDF Supplementary Material PubReader ePub

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.

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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;[Epub] CrossRef

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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

Abstract PDF PubReader ePub

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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Monoclonal antibodies against pediatric ulcerative colitis: a review of clinical progress
Debora Curci, Marianna Lucafò, Giuliana Decorti, Gabriele Stocco
Expert Opinion on Biological Therapy.2024; : 1. CrossRef

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IBD

Association between oral corticosteroid starting dose and the incidence of pneumonia in Japanese patients with ulcerative colitis: a nation-wide claims database study: Katsuyoshi Matsuoka, Tomoyuki Inoue, Hiroaki Tsuchiya, Katsumasa Nagano, Toshiyuki Iwahori; Intest Res 2024;22(3):319-335. Published online February 6, 2024; DOI: https://doi.org/10.5217/ir.2023.00071

Abstract PDF Supplementary Material PubReader ePub: Background/Aims
A previous study demonstrated that half of patients started oral corticosteroids (OCS) for ulcerative colitis (UC) exacerbations at lower doses than recommended by Japanese treatment guidelines (initial OCS prednisolone equivalent dose, 30–40 mg). This may relate to physician’s concern about infection, especially pneumonia including Pneumocystis jirovecii pneumonia (PJP), from high OCS doses. We assessed whether pneumonia incidence is increased with guideline-recommended OCS initial doses.
Methods
This retrospective cohort study used the Japan Medical Data Center claims database (2012–2021). The whole cohort consisted of all UC patients who started OCS during the study period meeting the inclusion and exclusion criteria. The matched cohort was created by propensity score matching; the lower (initial OCS dose < 30 mg), guideline-recommended (30–40 mg), and higher groups ( > 40 mg) in a 2:2:1 ratio. Pneumonia incidence in the primary analysis was evaluated in the matched cohort. A Poisson regression model determined pneumonia-related risk factors in the whole cohort.
Results
After screening, 3,349 patients comprised the whole cohort; 1,775 patients comprised the matched cohort (lower dose, n = 710; guideline-recommended dose, n = 710; higher dose, n = 355). The incidence of any pneumonia was low; no differences were observed in incidence rates across these dose subgroups. In total, 3 PJP cases were found in the whole cohort, but not detected in the matched cohort. Several risk factors for any pneumonia were identified, including age, higher comorbidities index, treatment in large facility and hospitalization.
Conclusions
The incidence of pneumonia, including PJP, in UC patients was low across initial OCS dose treatment subgroups.

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IBD

Association of colonic metaplasia of goblet cells and endoscopic phenotypes of the J pouch in patients with ulcerative colitis: a retrospective pilot study: Shintaro Akiyama, Tsubasa Onoda, Shoko Moue, Noriaki Sakamoto, Taku Sakamoto, Hideo Suzuki, Tsuyoshi Enomoto, Daisuke Matsubara, Tatsuya Oda, Kiichiro Tsuchiya; Intest Res 2024;22(1):92-103. Published online January 29, 2024; DOI: https://doi.org/10.5217/ir.2023.00105

Abstract PDF Supplementary Material PubReader ePub

Background/Aims
Mucosal adaptation of the ileum toward colonic epithelium has been reported in pouchitis in ulcerative colitis (UC); however, the clinical characteristics, endoscopic findings, and outcomes in patients with pouchitis with ileal mucosal adaptation are poorly understood.
Methods
This was a single-center retrospective study comprising UC patients treated by proctocolectomy with ileal pouch-anal anastomosis who had undergone pouchoscopy at the University of Tsukuba Hospital between 2005 and 2022. Endoscopic phenotypes were evaluated according to the Chicago classification. High-iron diamine staining (HID) was performed to identify sulfomucin (colon-type mucin)-producing goblet cells (GCs) in pouch biopsies. We compared clinical data between patients with (high HID group) and without > 10% sulfomucin-producing GCs in at least one biopsy (low HID group).
Results
We reviewed 390 endoscopic examination reports from 50 patients. Focal inflammation was the most common phenotype (78%). Five patients (10%) required diverting ileostomy. Diffuse inflammation and fistula were significant risk factors for diverting ileostomy. The median proportion of sulfomucin-producing GCs on histological analysis of 82 pouch biopsies from 23 patients was 9.9% (range, 0%–93%). The duration of disease was significantly greater in the high HID group compared to the low HID group. The median percentage of sulfomucin-producing GCs was significantly higher in patients with diffuse inflammation or fistula compared to other endoscopic phenotypes (14% vs. 6.0%, P= 0.011).
Conclusions
Greater proportions of sulfomucin-producing GCs were observed in endoscopic phenotypes associated with poor outcomes in UC, indicating patients with pouchitis showing colonic metaplasia of GCs may benefit from early interventions.

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Endoscopic assessment of the J pouch in ulcerative colitis: A narrative review
Shintaro Akiyama, Edward L Barnes, Tsubasa Onoda, Naoki Ishikawa, Mamiko Shiroyama, Yuka Ito, David T Rubin, Kiichiro Tsuchiya
DEN Open.2025;[Epub] CrossRef
A Comparative Analysis of Clinical Symptoms and Modified Pouchitis Disease Activity Index Among Endoscopic Phenotypes of the J Pouch in Patients With Inflammatory Bowel Disease
Shintaro Akiyama, Nathaniel A Cohen, Jacob E Ollech, Cindy Traboulsi, Tina Rodriguez, Victoria Rai, Laura R Glick, Yangtian Yi, Joseph Runde, Russell D Cohen, Kinga B Skowron, Roger D Hurst, Konstantin Umanskiy, Benjamin D Shogan, Neil H Hyman, Michele A
Crohn's & Colitis 360.2024;[Epub] CrossRef

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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

Abstract PDF Supplementary Material PubReader ePub

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.

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Sarcopenia and frailty in inflammatory bowel disease: Emerging concepts and evidence
Pardhu B Neelam, Alka Sharma, Vishal Sharma
JGH Open.2024;[Epub] CrossRef
Utility of SARC‐F for screening for sarcopenia in ulcerative colitis
Pardhu B. Neelam, Vishal Sharma
Nutrition in Clinical Practice.2024; 39(5): 1270. CrossRef
Response to “Utility of SARC‐F for screening for sarcopenia in ulcerative colitis”
Ilkay Ergenc, Chasan Ismail Basa, Alper Uzum, Sevval Sahin, Haluk Tarık Kani, Rahmi Aslan, Aslı Tufan, Özgür Kasımay, Özlen Atuğ, Yeşim Özen Alahdab
Nutrition in Clinical Practice.2024; 39(5): 1272. CrossRef

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Helminths in alternative therapeutics of inflammatory bowel disease: Himani Pandey, Daryl W. T. Tang, Sunny H. Wong, Devi Lal; Received May 25, 2023 Accepted November 1, 2023 Published online January 12, 2024; DOI: https://doi.org/10.5217/ir.2023.00059 [Epub ahead of print]

Abstract PDF PubReader ePub: 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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IBD

Precision medicine in inflammatory bowel diseases: Ashwin N. Ananthakrishnan; Intest Res 2024;22(1):8-14. Published online November 9, 2023; DOI: https://doi.org/10.5217/ir.2023.00087

Abstract PDF PubReader ePub

Inflammatory bowel diseases comprising Crohn’s disease and ulcerative colitis have emerged as global diseases. Multiple distinct therapeutic mechanisms have allowed us to increase our rates of achieving remission and reducing permanent disease-related morbidity. However, there is limited data to inform relative positioning of different therapies. This review will summarize existing literature on use of clinical decision models to inform relative efficacy of one therapeutic mechanism compared to the other given individual patient characteristics. It will also demonstrate the value of serologic, transcriptomic (from biopsies), and microbiome-based biomarkers in identifying which therapy is most likely to work for a given patient. We will review the existing gaps in the literature in this field and suggest a path forward for future studies to better inform patient care, incorporating the principles of precision medicine in the management of inflammatory bowel disease.

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Editorial: Another brick in the CDST wall: Authors' reply
Kyuwon Kim, Byong Duk Ye
Alimentary Pharmacology & Therapeutics.2024; 60(1): 87. CrossRef
Cytokine Profile in Predicting the Effectiveness of Advanced Therapy for Ulcerative Colitis: A Narrative Review
Hiroki Kurumi, Yoshihiro Yokoyama, Takehiro Hirano, Kotaro Akita, Yuki Hayashi, Tomoe Kazama, Hajime Isomoto, Hiroshi Nakase
Biomedicines.2024; 12(5): 952. CrossRef
Revolutionizing Gastrointestinal Disorder Management: Cutting-Edge Advances and Future Prospects
Chahat Suri, Babita Pande, Tarun Sahu, Lakkakula Suhasini Sahithi, Henu Kumar Verma
Journal of Clinical Medicine.2024; 13(13): 3977. CrossRef

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Risk of malignancies and chemopreventive effect of statin, metformin, and aspirin in Korean patients with ulcerative colitis: a nationwide population-based study: Eun Hye Oh, Ye-Jee Kim, Minju Kim, Seung Ha Park, Tae Oh Kim, Sang Hyoung Park; Received June 3, 2023 Accepted September 14, 2023 Published online November 9, 2023; DOI: https://doi.org/10.5217/ir.2023.00062 [Epub ahead of print]

Abstract PDF Supplementary Material PubReader ePub: Background/Aims
We investigated the incidences of overall and site-specific malignancies and chemopreventive effects of statin, metformin, and aspirin in patients with ulcerative colitis.
Methods
We collected data using the Health Insurance Review and Assessment claims database from January 2007 to April 2020.
Results
The overall malignancy risk among the 35,189 ulcerative colitis patients was similar to that of the general population (standardized incidence ratio, 0.94; 95% confidence interval, 0.88–1.00). In male patients, standardized incidence ratios were high for thyroid cancer and low for stomach cancer, colorectal cancer, liver cancer, and lung cancer. Concurrently, standard incidence ratios were high for liver cancer and central nervous system cancer in female patients. While 122 cases of colorectal cancer occurred in the study patients, the standardized incidence ratio was 0.83 (95% confidence interval, 0.69–0.99). Treatment for ulcerative colitis was not associated with an increased adjusted hazard ratio, while comorbidities increased it for all malignancies. Treatment for ulcerative colitis was associated with an increased adjusted hazard ratio, while comorbidities did not increase it for colorectal cancer. After adjusting for age, sex, comorbidities, and ulcerative colitis treatment, statins showed a dose-dependent chemopreventive effect for all malignancies (P=0.002), while metformin and aspirin did not show any.
Conclusions
In ulcerative colitis patients, standardized incidence ratios for all malignancies and colorectal cancer did not increase. Adjusted hazard ratios for all malignancies increased with comorbidities and those for colorectal cancer with ulcerative colitis treatment. Statins have a dose-dependent chemopreventive effect for all malignancies.

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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

Abstract PDF PubReader ePub

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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Editorial: Environments-pathogens-the gut microbiota and host diseases
Jinbo Xiong, Zunji Shi
Frontiers in Microbiology.2024;[Epub] CrossRef
Endoplasmic reticulum stress: A possible connection between intestinal inflammation and neurodegenerative disorders
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
Advances in Precision Medicine Approaches for Colorectal Cancer: From Molecular Profiling to Targeted Therapies
Neelakanta Sarvashiva Kiran, Chandrashekar Yashaswini, Rahul Maheshwari, Sankha Bhattacharya, Bhupendra G. Prajapati
ACS Pharmacology & Translational Science.2024; 7(4): 967. CrossRef
Healing from Within: How Gut Microbiota Predicts IBD Treatment Success—A Systematic Review
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
The emerging role of the gut microbiota and its application in inflammatory bowel disease
Xiu Wang, Jianhua Peng, Peipei Cai, Yuxuan Xia, Chengxue Yi, Anquan Shang, Francis Atim Akanyibah, Fei Mao
Biomedicine & Pharmacotherapy.2024; 179: 117302. CrossRef
Bifidogenic Effect of Human Milk Oligosaccharides on Pediatric IBD Fecal Microbiota
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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IBD

Improvement of ulcerative colitis control by searching and restricting of inflammatory trigger factors in daily clinical practice: Kun-Yu Tsai, Jeng-Fu You, Tzong-Yun Tsai, Yih Jong Chern, Yu-Jen Hsu, Shu-Huan Huang, Wen-Sy Tsai; Intest Res 2023;21(1):100-109. Published online November 14, 2022; DOI: https://doi.org/10.5217/ir.2021.00110

Abstract PDF PubReader ePub

Background/Aims
Exacerbating factors of ulcerative colitis (UC) are multiple and complex with individual influence. We aimed to evaluate the efficacy of disease control by searching and restricting inflammation trigger factors of UC relapse individually in daily clinical practice.
Methods
Both patients with UC history or new diagnosis were asked to avoid dairy products at first doctor visit. Individual-reported potential trigger factors were restricted when UC flared up (Mayo endoscopy score ≥1) from remission status. The remission rate, duration to remission and medication were analyzed between the groups of factor restriction complete, incomplete and unknown.
Results
The total remission rate was 91.7% of 108 patients with complete restriction of dairy product. The duration to remission of UC history group was significantly longer than that of new diagnosis group (88.5 days vs. 43.4 days, P=0.006) in patients with initial endoscopic score 2–3, but no difference in patients with score 1. After first remission, the inflammation trigger factors in 161 relapse episodes of 72 patients were multiple and personal. Milk/dairy products, herb medicine/Chinese tonic food and dietary supplement were the common factors, followed by psychological issues, non-dietary factors (smoking cessation, cosmetic products) and discontinuation of medication by patients themselves. Factor unknown accounted for 14.1% of patients. The benefits of factor complete restriction included shorter duration to remission (P<0.001), less steroid and biological agent use (P=0.022) when compared to incomplete restriction or factor unknown group.
Conclusions
Restriction of dairy diet first then searching and restricting trigger factors personally if UC relapse can improve the disease control and downgrade the medication usage of UC patients in daily clinical practice.

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Comments on Oral Sulfate Solution Is as Effective as Polyethylene Glycol with Ascorbic Acid in a Split Method for Bowel Preparation in Patients with Inactive Ulcerative Colitis: A Randomized, Multicenter, and Single-Blind Clinical Trial
Ji Eun Kim
Gut and Liver.2024; 18(1): 192. CrossRef
Dietary behaviour, attitude and food perceptions of patients with ulcerative colitis – An observational study
Nancy Sahni, Urvashi Rana, Sindhuja Rajan, Anuraag Jena, Anupam K Singh, Usha Dutta, Vishal Sharma
Journal of the Royal College of Physicians of Edinburgh.2024;[Epub] CrossRef

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IBD

Inflammatory bowel disease (IBD)-disk accurately predicts the daily life burden and parallels disease activity in patients with IBD: Arshdeep Singh, Yogesh Kumar Gupta, Ashvin Singh Dhaliwal, Bhavjeet Kaur Kahlon, Vasu Bansal, Ramit Mahajan, Varun Mehta, Dharmatma Singh, Ramandeep Kaur, Namita Bansal, Vandana Midha, Ajit Sood; Intest Res 2023;21(3):375-384. Published online October 18, 2022; DOI: https://doi.org/10.5217/ir.2022.00037

Abstract PDF Supplementary Material PubReader ePub

Background/Aims
The inflammatory bowel disease (IBD)-disk is a validated, visual, 10-item, self-administered questionnaire used to evaluate IBD-related disability. The present study aimed to evaluate IBD-disk in assessment of IBD daily life burden and its relation with disease activity. Methods: A cross-sectional study was conducted between June 2021 and December 2021. Patients with IBD were asked to complete the IBD-disk and a visual analogue scale of IBD daily-life burden (scored from 0–10, score >5 indicative of high burden). The internal consistency of IBD-disk, correlation with IBD daily life burden and disease activity (assessed by partial Mayo score and Harvey Bradshaw Index in patients with ulcerative colitis [UC] and Crohn’s disease [CD], respectively) and diagnostic performance of IBD-disk to detect high burden were analyzed. Results: Out of the 546 patients (mean age 40.33±13.74 years, 282 [51.6%] males) who completed the IBD-disk, 464 (84.98%) had UC and the remaining (n=82, 15.02%) had CD. A total of 311 patients (291 UC and 20 CD; 56.95%) had active disease. The mean IBD-disk total score and IBD daily life burden were 18.39±15.23 and 2.45±2.02, respectively. The IBD-disk total score correlated strongly with the IBD daily life burden (ρ=0.94, P<0.001), moderately with partial Mayo score (ρ=0.50) and weakly with Harvey Bradshaw Index (ρ=0.34). The IBD-disk total score >30 predicted high IBD daily-life burden. Conclusions: The IBD-disk accurately predicts the daily life burden and parallels disease activity in patients with IBD and can be applied in clinical practice. (Intest Res, Published online)

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IBD-PODCAST Spain: A Close Look at Current Daily Clinical Practice in IBD Management
P. Vega, J. M. Huguet, E. Gómez, S. Rubio, P. Suarez, M. I. Vera, J. M. Paredes, A. Hernández-Camba, R. Plaza, M. Mañosa, R. Pajares, B. Sicilia, L. Madero, S. Kolterer, C. Leitner, T. Heatta-Speicher, N. Michelena, R. Santos de Lamadrid, A. Dignass, F. G
Digestive Diseases and Sciences.2024; 69(3): 749. CrossRef
Proportion of inflammatory bowel diseases patients with suboptimal disease control in daily clinical practice—Real‐world evidence from the inflammatory bowel diseases‐podcast study
Ferdinando D’Amico, Fernando Gomollón, Giorgos Bamias, Fernando Magro, Laura Targownik, Claudia Leitner, Tobias Heatta‐Speicher, Naiara Michelena, Stefanie Kolterer, Jennifer Lapthorn, Laura Kauffman, Axel Dignass
United European Gastroenterology Journal.2024; 12(6): 705. CrossRef

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IBD

Association of young age and male sex with primary sclerosing cholangitis in Taiwanese patients with inflammatory bowel disease: Meng-Tzu Weng, I-Lun Shih, Chien-Chih Tung, Yew-Loong Leong, Ming-Jium Shieh, Cheng-Yi Wang, Jau-Min Wong, Yen-Hsuan Ni, Shu-Chen Wei; Intest Res 2022;20(2):224-230. Published online February 8, 2022; DOI: https://doi.org/10.5217/ir.2021.00042

Abstract PDF Supplementary Material PubReader ePub

Background/Aims
Primary sclerosing cholangitis (PSC) is associated with inflammatory bowel disease (IBD). We aimed to evaluate the prevalence, clinical manifestation, and outcomes of PSC in Taiwanese patients with IBD. Methods: This retrospective study enrolled patients with IBD admitted from January 1, 1996, to December 31, 2018, to National Taiwan University Hospital. A case-matched analysis was performed comparing patients with IBD with and without PSC according to age, sex, and time of admission, with ratios of 1:4 and 1:2 in the adult and pediatric groups, respectively.
Results
In total, 763 patients with IBD were enrolled, 12 of whom were also diagnosed with PSC (1.57%). All these patients had ulcerative colitis (UC). A greater incidence of IBD with PSC was observed in younger patients than in older patients. Male sex was a risk factor for PSC in pediatric patients with IBD (P=0.015); 75% of these patients were diagnosed with PSC along with or after the diagnosis of UC. There was no significant difference in colitis extent and severity between the groups; however, a higher proportion of rectal sparing was observed in patients with PSC (P=0.001). There was no significant difference in cancer development between the groups (P=0.679). Conclusions: A 1.57% prevalence of PSC was observed in Taiwanese patients with IBD. The majority of patients with IBD and PSC were men and were diagnosed at a younger age. Hence, routine evaluation of biliary enzymes and liver imaging is recommended in young male patients with IBD.

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Hepatic Steatosis but Not Fibrosis Is Independently Associated with Poor Outcomes in Patients with Inflammatory Bowel Disease
Hye Kyung Hyun, Hye Won Lee, Jihye Park, Soo Jung Park, Jae Jun Park, Tae Il Kim, Jae Seung Lee, Beom Kyung Kim, Jun Yong Park, Do Young Kim, Sang Hoon Ahn, Seung Up Kim, Jae Hee Cheon
Gut and Liver.2024; 18(2): 294. CrossRef
Safety of Biologics and Small Molecules for Inflammatory Bowel Diseases in Organ Transplant Recipients
Ga Hee Kim, Minjun Kim, Kyuwon Kim, Jung-Bin Park, Ji Eun Baek, June Hwa Bae, Seung Wook Hong, Sung Wook Hwang, Dong-Hoon Yang, Byong Duk Ye, Jeong-Sik Byeon, Seung-Jae Myung, Suk-Kyun Yang, Sang Hyoung Park
Yonsei Medical Journal.2024; 65(5): 276. CrossRef
Incidence and adverse clinical events of primary sclerosing cholangitis with ulcerative colitis
In Sub Han, Dong Hoon Baek, Seung Min Hong, Bong Eun Lee, Moon Won Lee, Gwang Ha Kim, Geun Am Song
International Journal of Colorectal Disease.2023;[Epub] CrossRef
Primary sclerosing cholangitis (PSC) and inflammatory bowel disease (IBD): a condition exemplifying the crosstalk of the gut–liver axis
You Sun Kim, Edward H. Hurley, Yoojeong Park, Sungjin Ko
Experimental & Molecular Medicine.2023; 55(7): 1380. CrossRef
Treatment of primary sclerosing cholangitis combined with inflammatory bowel disease
You Sun Kim, Edward H. Hurley, Yoojeong Park, Sungjin Ko
Intestinal Research.2023; 21(4): 420. CrossRef
Regional variations in the prevalence of primary sclerosing cholangitis associated with inflammatory bowel disease
Kwang Woo Kim, Hyoun Woo Kang
Intestinal Research.2023; 21(4): 413. CrossRef
Is primary sclerosing cholangitis with inflammatory bowel disease different between patients in the East and West?
Yong Eun Park
Intestinal Research.2022; 20(2): 157. CrossRef

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IBD

Risk factors for non-reaching of ileal pouch to the anus in laparoscopic restorative proctocolectomy with handsewn anastomosis for ulcerative colitis: Shigenobu Emoto, Keisuke Hata, Hiroaki Nozawa, Kazushige Kawai, Toshiaki Tanaka, Takeshi Nishikawa, Yasutaka Shuno, Kazuhito Sasaki, Manabu Kaneko, Koji Murono, Yuuki Iida, Hiroaki Ishii, Yuichiro Yokoyama, Hiroyuki Anzai, Hirofumi Sonoda, Soichiro Ishihara; Intest Res 2022;20(3):313-320. Published online March 12, 2021; DOI: https://doi.org/10.5217/ir.2020.00158

Abstract PDF PubReader ePub

Background/Aims
Restorative proctocolectomy (RPC) with ileal pouch-anal anastomosis and handsewn anastomosis for ulcerative colitis requires pulling down of the ileal pouch into the pelvis, which can be technically challenging. We examined risk factors for the pouch not reaching the anus.
Methods
Clinical records of 62 consecutive patients who were scheduled to undergo RPC with handsewn anastomosis at the University of Tokyo Hospital during 1989–2019 were reviewed. Risk factors for non-reaching were analyzed in patients in whom hand sewing was abandoned for stapled anastomosis because of nonreaching. Risk factors for non-reaching in laparoscopic RPC were separately analyzed. Anatomical indicators obtained from presurgical computed tomography (CT) were also evaluated.
Results
Thirty-seven of 62 cases underwent laparoscopic procedures. In 6 cases (9.7%), handsewn anastomosis was changed to stapled anastomosis because of non-reaching. Male sex and a laparoscopic approach were independent risk factors of non-reaching. Distance between the terminal of the superior mesenteric artery (SMA) ileal branch and the anus > 11 cm was a risk factor for non-reaching.
Conclusions
Laparoscopic RPC with handsewn anastomosis may limit extension and induction of the ileal pouch into the anus. Preoperative CT measurement from the terminal SMA to the anus may be useful for predicting non-reaching.

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Preoperative Simulation of Ileal Pouch–Anal Anastomosis in Patients With Ulcerative Colitis Using a 3-Dimensional Printed Model
Shota Yokose, Koji Murono, Hiroaki Nozawa, Kazuhito Sasaki, Shigenobu Emoto, Hiroyuki Matsuzaki, Yuichiro Yokoyama, Shinya Abe, Yuzo Nagai, Yuichiro Yoshioka, Takahide Shinagawa, Hirofumi Sonoda, Shin Murai, Koichi Komatsu, Soichiro Ishihara
Inflammatory Bowel Diseases.2023; 29(12): 1865. CrossRef
Preoperative Computed Tomography Indices Predict Non-reach Prior to Ileal Pouch-Anal Anastomosis
Evan D. Adams, Charlotte A Lansky, Cindy E. Kallman, Karen N. Zaghiyan, Phillip R. Fleshner
Diseases of the Colon & Rectum.2023;[Epub] CrossRef
Laparoscopic vs open restorative proctectomy after total abdominal colectomy for ulcerative colitis or familial adenomatous polyposis
Hiroaki Nozawa, Keisuke Hata, Kazuhito Sasaki, Koji Murono, Kazushige Kawai, Shigenobu Emoto, Soichiro Ishihara
Langenbeck's Archives of Surgery.2022; 407(4): 1605. CrossRef
Recent Advance in the Management of Dysplasia in the Ulcerative Colitis
Dong-Hoon Yang
Journal of Digestive Cancer Reports.2021; 9(2): 50. CrossRef

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IBD

Granulocyte and monocyte apheresis therapy for patients with active ulcerative colitis associated with COVID-19: a case report: Miki Koroku, Teppei Omori, Harutaka Kambayashi, Shun Murasugi, Tomoko Kuriyama, Yuichi Ikarashi, Maria Yonezawa, Ken Arimura, Kazunori Karasawa, Norio Hanafusa, Masatoshi Kawana, Katsutoshi Tokushige; Intest Res 2022;20(1):150-155. Published online March 12, 2021; DOI: https://doi.org/10.5217/ir.2020.00148

Abstract PDF PubReader ePub

Coronavirus disease 2019 (COVID-19), caused by infection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), is now a pandemic. Although several treatment guidelines have been proposed for patients who have both inflammatory bowel disease and COVID-19, immunosuppressive therapy is essentially not recommended, and the treatment options are limited. Even in the COVID-19 pandemic, adjuvant adsorptive granulocyte and monocyte apheresis may safely bring ulcerative colitis (UC) into remission by removing activated myeloid cells without the use of immunosuppressive therapy. Our patient was a 25-year-old Japanese male with UC and COVID-19. This is the first case report of the induction of UC remission with granulocyte and monocyte apheresis treatment for active UC associated with COVID-19.

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Phenotypic changes in immune cells induced by granulocyte and monocyte adsorptive apheresis in patients with severe COVID‐19: An ex vivo study
Ryo Hisamune, Kazuma Yamakawa, Katsuhide Kayano, Noritaka Ushio, Takeshi Wada, Kohei Taniguchi, Akira Takasu
Acute Medicine & Surgery.2024;[Epub] CrossRef
SARS-CoV-2 vaccination for adult patients with inflammatory bowel disease: expert consensus statement by KASID
Yoo Jin Lee, Seong-Eun Kim, Yong Eun Park, Ji Young Chang, Hyun Joo Song, Duk Hwan Kim, Young Joo Yang, Byung Chang Kim, Jae Gon Lee, Hee Chan Yang, Miyoung Choi, Seung-Jae Myung
Intestinal Research.2022; 20(2): 171. CrossRef
SARS-CoV-2 Vaccination for Adult Patients with Inflammatory Bowel Disease: Expert Consensus Statements by KASID
Yoo Jin Lee, Seong-Eun Kim, Yong Eun Park, Ji Young Chang, Hyun Joo Song, Duk Hwan Kim, Young Joo Yang, Byung Chang Kim, Jae Gon Lee, Hee Chan Yang, Miyoung Choi, Seung-Jae Myung
The Korean Journal of Gastroenterology.2021; 78(2): 117. CrossRef

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IBD

Vedolizumab does not increase perioperative surgical complications in patients with inflammatory bowel disease, cohort study: Vitaliy Y. Poylin, Jose Cataneo Serrato, Jonathan Pastrana Del Valle, Joseph D. Feuerstein; Intest Res 2022;20(1):72-77. Published online February 3, 2021; DOI: https://doi.org/10.5217/ir.2020.00117

Abstract PDF PubReader ePub

Background/Aims
Biologics are increasingly used to manage ulcerative colitis (UC) and Crohn’s disease (CD). However, even with earlier usage of biologic therapy, a significant proportion of patients will require surgery. Vedolizumab is an anti-integrin antibody that is increasingly used given that it is more gut selective and associated with fewer side effects. The aim of this study is to assess the effect of vedolizumab compared to anti-tumor necrosis factor (anti-TNF) therapy on the perioperative complications in patients undergoing surgery for inflammatory bowel disease (IBD).
Methods
Retrospective review of patients treated for IBD at a tertiary care center between 2013 and 2017. Rates of 30- and 90-day complications for patients on vedolizumab were compared to patients on anti-TNF regimens.
Results
One hundred and ninety-nine patients met inclusion criteria with 87 (43%) patients undergoing surgery for CD, 111 (55.8%) for UC and 1 (0.5%) for indeterminate colitis. Thirty-eight patients received preoperative vedolizumab and 94 received anti-TNF. There were more males and lower body mass index in the anti-TNF group. There was no significant difference in overall rate of complications at 30 or 90 days. There was a trend for lower leak rate vedolizumab group (0% for vedolizumab vs. 2.1% for anti-TNF at 30 days, P= 1.00; 0% for vedolizumab vs. 1.1% for anti-TNF at 90 days, P= 1.00). Multivariate analysis showed low albumin ( < 3.6 g/dL) at the time of surgery to be a significant risk factor for overall and infectious complications at 90 days (odds ratio, 3.24; 95% confidence interval, 1.12–8.79; P= 0.021).
Conclusions
Perioperative vedolizumab does not increase rates of perioperative complications in IBD surgery when compared to anti-TNF medications.

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Safety and Monitoring of Inflammatory Bowel Disease Advanced Therapies
Shubha Bhat, Benjamin Click, Miguel Regueiro
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IBD

Effectiveness of administering zinc acetate hydrate to patients with inflammatory bowel disease and zinc deficiency: a retrospective observational two-center study: Kensuke Sakurai, Shigeru Furukawa, Takehiko Katsurada, Shinsuke Otagiri, Kana Yamanashi, Kazunori Nagashima, Reizo Onishi, Keiji Yagisawa, Haruto Nishimura, Takahiro Ito, Atsuo Maemoto, Naoya Sakamoto; Intest Res 2022;20(1):78-89. Published online January 22, 2021; DOI: https://doi.org/10.5217/ir.2020.00124

Abstract PDF Supplementary Material PubReader ePub

Background/Aims
Inflammatory bowel disease (IBD) patients frequently have zinc deficiency. IBD patients with zinc deficiency have higher risks of IBD-related hospitalization, complications, and requiring surgery. This study aimed to examine the effectiveness of zinc acetate hydrate (ZAH; Nobelzin) in IBD patients with zinc deficiency.
Methods
IBD patients with zinc deficiency who received ZAH from March 2017 to April 2020 were registered in this 2-center, retrospective, observational study. Changes in serum zinc levels and disease activity (Crohn’s Disease Activity Index [CDAI]) before and after ZAH administration were analyzed.
Results
Fifty-one patients with Crohn’s disease (CD, n = 40) or ulcerative colitis (UC, n = 11) were registered. Median serum zinc level and median CDAI scores significantly improved (55.5–91.0 μg/dL, P< 0.001; 171.5–129, P< 0.001, respectively) in CD patients 4 weeks after starting ZAH administration. Similarly, median serum zinc levels and CDAI scores significantly improved (57.0–81.0 μg/dL, P< 0.001; 177–148, P= 0.012, respectively) 20 weeks after starting ZAH administration. Similar investigations were conducted in groups where no treatment change, other than ZAH administration, was implemented; significant improvements were observed in both serum zinc level and CDAI scores. Median serum zinc levels in UC patients 4 weeks after starting ZAH administration significantly improved from 63.0 to 94.0 μg/dL (P= 0.002), but no significant changes in disease activity were observed. One patient experienced side effects of abdominal discomfort and nausea.
Conclusions
ZAH administration is effective in improving zinc deficiency and may contribute to improving disease activity in IBD.

Citations

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Changlin Wen, Jiayu Wang, Zhenhua Sun, Rao Zhong, Mengjie Li, Xuemei Shen, Qiaobo Ye, Kaihua Qin, Xi Peng
Biological Trace Element Research.2024; 202(2): 659. CrossRef
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Tomoaki Shintani, Kouji Ohta, Toshinori Ando, Yasutaka Hayashido, Souichi Yanamoto, Mikihito Kajiya, Hideki Shiba
BMC Oral Health.2023;[Epub] CrossRef
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Marco Valvano, Annalisa Capannolo, Nicola Cesaro, Gianpiero Stefanelli, Stefano Fabiani, Sara Frassino, Sabrina Monaco, Marco Magistroni, Angelo Viscido, Giovanni Latella
Nutrients.2023; 15(17): 3824. CrossRef
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Roberta Zupo, Annamaria Sila, Fabio Castellana, Roberto Bringiotti, Margherita Curlo, Giovanni De Pergola, Sara De Nucci, Gianluigi Giannelli, Mauro Mastronardi, Rodolfo Sardone
Nutrients.2022; 14(19): 4052. CrossRef

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IBD

Clinical presentation of COVID-19 in patients with inflammatory bowel disease: a systematic review and meta-analysis: Anupam K. Singh, Anuraag Jena, Praveen Kumar-M, Daya Krishna Jha, Vishal Sharma; Intest Res 2022;20(1):134-143. Published online January 18, 2021; DOI: https://doi.org/10.5217/ir.2020.00108

Abstract PDF Supplementary Material PubReader ePub

Background/Aims
Coronavirus disease 2019 (COVID-19) is recognized to have variable clinical manifestations. The clinical presentation of patients with inflammatory bowel disease (IBD) having COVID-19 is unclear.
Methods
We identified articles reporting about the clinical presentation of COVID-19 in those with underlying IBD from PubMed and Embase. The studies, irrespective of design or language, were included. The overall pooled frequency of various symptoms was estimated. Joanna Briggs Institute Critical appraisal checklist was used to assess the quality of studies.
Results
Eleven studies, including 1,325 patients, were included in the pooled analysis. The pooled estimates for clinical presentation were; fever: 67.53% (95% confidence interval [CI], 45.38–83.88), cough: 59.58% (95% CI, 45.01–72.63), diarrhea: 27.26% (95% CI, 19.51–36.69), running nose: 27% (95% CI, 15.26–43.19) and dyspnea: 25.29% (95% CI, 18.52–33.52). The pooled prevalence rates for abdominal pain, nausea and vomiting were 13.08% (95% CI, 9.24–18.19), 10.08% (95% CI, 5.84–16.85) and 8.80% (95% CI, 4.43–16.70) per 100 population, respectively.
Conclusions
The clinical presentation of COVID-19 in IBD patients is similar to the general population.

Citations

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