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Acute severe ulcerative colitis (ASUC) is a potentially life-threatening complication of ulcerative colitis (UC) that can lead to significant morbidity and mortality, with a substantial number of patients needing colectomy. Infliximab (IFX) has been increasingly used as a rescue therapy for patients who have failed intravenous steroids and has been more frequently used as an induction and maintenance therapy in moderate-to-severe UC. Therefore, the number of patients admitted with ASUC previously exposed to IFX has been increasing, raising additional challenges in the medical management of these patients to avoid emergent colectomy. This narrative review intends to summarise the most recent evidence in the medical management of steroid-refractory ASUC patients previously exposed to IFX and to propose a treatment algorithm for approaching this difficult-to-treat group of patients.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11444699 | PMC |
http://dx.doi.org/10.1159/000537693 | DOI Listing |
Nan Fang Yi Ke Da Xue Xue Bao
August 2025
Clinical Laboratory, First Affiliated Hospital of Bengbu Medical University, Bengbu 233004, China.
Objectives: To investigate the therapeutic mechanism of 2,6-dimethoxy-1,4-benzoquinone (DMQ) for alleviating dextran sulfate sodium (DSS)-induced ulcerative colitis (UC) in mice.
Methods: Eighteen male C57BL/6J mice were equally randomized into control group, DSS group and DMQ treatment group. In DSS and DMQ groups, the mice were treated with DSS in drinking water to induce UC, and received intraperitoneal injections of sterile PBS or DMQ (20 mg/kg) during modeling.
Phytomedicine
August 2025
College of Food Science and Technology, Yunnan Agricultural University, Kunming 650201, China; Yunnan Provincial Key Laboratory of Precision Nutrition and Personalized Food Manufacturing, Yunnan Agricultural University, Kunming 650201, China; Yunnan Provincial Engineering Research Center for Edible
Background: Walnut septum, a Juglans regia L. by-product with culinary-medicinal value, is a rich source of bioactive polyphenols. The chemical complexity and anti-colitis activities of these polyphenols remain uncharacterized.
View Article and Find Full Text PDFImmunol Invest
September 2025
Department of Function, Affiliated Wuxi Fifth Hospital of Jiangnan University, Wuxi, China.
Objective: This study aims to elucidate how butyrate, a short-chain fatty acid, regulates the Treg/Th17 balance in ulcerative colitis (UC) via the cAMP-PKA/mTOR signaling pathway, offering novel treatment strategies.
Methods: Dextran sulfate sodium (DSS) was used to induce ulcerative colitis in a mouse model. Various butyrate dosages were administered to the mice.
Urol Oncol
September 2025
Cancer Prognostics and Health Outcomes Unit, Division of Urology, University of Montréal Health Center, Montréal, Québec, Canada.
Introduction: The effect of inflammatory bowel disease (IBD) on adverse in-hospital outcomes after radical prostatectomy (RP) for nonmetastatic prostate cancer (PCa) is not well known.
Materials And Methods: Descriptive analyses, propensity score matching and multivariable logistic regression models were used within the National Inpatient Sample (2000-2019) RP patients, after stratification according to Crohn's disease (CD) vs. ulcerative colitis (UC) vs.
Int J Biol Macromol
September 2025
School of Pharmacy, Shanghai Jiao Tong University, Shanghai, 200240, PR China. Electronic address:
Ulcerative colitis (UC), a chronic inflammatory bowel disease (IBD), is characterized by disruption of intestinal barrier function and complex inflammatory manifestations locally and systemically. Although anti-tumor necrosis factor-α (TNF-α) agents such as Infliximab (IFX) are effective in treating IBD, their intestinal tissue concentration has been regarded as determinant of therapeutic efficacy while was restrained by the large molecular weight. Considering the enhanced expression of human neonatal Fc receptor (hFcRn) in UC tissues, we attempted to deliver the therapeutic entity of IFX into UC tissues by developing a novel dual-acting IFX Fab-F8 (IFX-F8) fusion protein for UC treatment.
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