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Functional characterization of novel anti-DEFA5 monoclonal antibody clones 1A8 and 4F5 in inflammatory bowel disease colitis tissues.
Inflamm Res
January 2025
Department of Biochemistry, Cancer Biology, Neuroscience, and Pharmacology, School of Medicine, Meharry Medical College, 1005 D.B. Todd Jr. Blvd, Nashville, TN, USA.
Background: The aberrant expression of α defensin 5 (DEFA5) protein in colonic inflammatory bowel diseases (IBDs) underlies the distinct pathogenesis of Crohn's colitis (CC). It can serve as a biomarker for differentiating CC from Ulcerative colitis (UC), particularly in Indeterminate colitis (IC) cases into UC and CC. We evaluated the specificity of commercially available anti-DEFA5 antibodies, emphasizing the need to further validate their appropriateness for a given application and highlighting the necessity for novel antibodies.
View Article and Find Full Text PDFGeneralizability of Randomized Controlled Trials to Routine Clinical Care in Ulcerative Colitis.
Inflamm Bowel Dis
January 2025
Inflammatory Bowel Disease Unit, Division of Gastroenterology and Hepatology, Department of Medicine, University of Calgary, 5th Floor Cal Wenzel Precision Health Building, 3280 Hospital Drive NW, Calgary, AB T2N 4Z6, Canada.
Background: Historically, randomized controlled trials (RCTs) have been criticized for being poorly generalizable to patients with ulcerative colitis (UC) evaluated in routine care. We aimed to evaluate the proportion of patients with UC starting an advanced therapy who would be eligible to participate in phase 3 registrational UC RCTs.
Methods: We conducted a retrospective cohort analysis of UC patients starting vedolizumab, ustekinumab, or tofacitinib at 2 IBD clinics at the University of Calgary.
Gastroenterological Surgery and Management of Infection: A Review.
J Anus Rectum Colon
January 2025
Department of Infectious Diseases, St. Marianna University School of Medicine, Kawasaki, Japan.
Fever and diarrhea are the common symptoms of infection (CDI); however, pseudomembranous enteritis, megacolonization, and paralytic ileus have been observed in severe cases. spores are resistant to several types of disinfectants. Thus, they are often the causative pathogens of healthcare-associated infections.
View Article and Find Full Text PDFHuman-derived microRNA 21 regulates indole and L-tryptophan biosynthesis transcripts in the gut commensal .
mBio
January 2025
Centre for Microbiology and Environmental Systems Science, Department of Microbiology and Ecosystem Science, Division of Microbial Ecology, University of Vienna, Vienna, Austria.
Unlabelled: In the gut, microRNAs (miRNAs) produced by intestinal epithelial cells are secreted into the lumen and can shape the composition and function of the gut microbiome. Crosstalk between gut microbes and the host plays a key role in irritable bowel syndrome (IBS) and inflammatory bowel diseases, yet little is known about how the miRNA-gut microbiome axis contributes to the pathogenesis of these conditions. Here, we investigate the ability of miR-21, a miRNA that we found decreased in fecal samples from IBS patients, to associate with and regulate gut microbiome function.
View Article and Find Full Text PDFComparative Improvement in Health-Related Quality of Life with Advanced Therapies for Moderate-to-Severe Crohn's Disease: A Network Meta-Analysis.
Am J Gastroenterol
January 2025
Zane Cohen Centre for Digestive Diseases, Lunenfeld-Tanenbaum Research Institute, Sinai Health System, Toronto, Ontario, Canada.
Background And Aims: The comparative efficacy of advanced therapies to improve health-related quality of life (HR-QoL) in Crohn's disease (CD) is unknown. We aimed to compare the impact of approved advanced therapies for moderate-to-severe CD on HR-QoL.
Methods: We searched MEDLINE, Embase, and Cochrane CENTRAL from inception to December 2023.
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