Canine granulomatous colitis (histiocytic ulcerative colitis) is an uncommon disease, predominantly of young French Bulldogs and Boxer dogs, that manifests from a dysregulated immune response, primarily to adherent-invasive (AIEC). In conjunction with histopathology and periodic acid-Schiff staining, the diagnosis of granulomatous colitis currently relies on fluorescence in situ hybridization (ISH) or immunohistochemistry to identify and localize AIEC organisms within macrophages in the mucosa and/or submucosa. We investigated the utility of ISH for using formalin-fixed, paraffin-embedded specimens collected from 29 cases of suspected granulomatous colitis. Most confirmed cases of granulomatous colitis were in French Bulldogs (12 of 20; 60%) and Boxers (3 of 20; 15%), and the mean age was 25 ± 6 mo with no sex predilection. ISH signal localized bacterial genetic material within the mucosa in 20 of 29 (69%) cases, supporting the diagnosis. ISH signal was limited to the lumen in 8 of 29 (28%) cases, which did not support the identification of these organisms as AIEC. The remaining case had no hybridization signal, and the diagnosis of granulomatous colitis was not supported. Our results revealed that ISH is a quick and specific detection method that can effectively confirm the diagnosis of canine granulomatous colitis.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10734575 | PMC |
| http://dx.doi.org/10.1177/10406387231213358 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Evaluating the impact of modeling choices on the performance of integrated genetic and clinical models.
Genet Med
December 2024
Vanderbilt Genetics Institute, Vanderbilt University Medical Center, Nashville, TN; Center for Digital Genomic Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN; Department of Biomedical Informatics, Vanderbilt University Medical Center, Nashville, TN; Department of Psychiatry and Behavioral Sciences, Vanderbilt University Medical Center, Nashville, TN. Electronic address:
Purpose: The value of genetic information for improving the performance of clinical risk prediction models has yielded variable conclusions. Many methodological decisions have the potential to contribute to differential results. We performed multiple modeling experiments integrating clinical and demographic data from electronic health records (EHR) with genetic data to understand which decisions may affect performance.
View Article and Find Full Text PDFModified Crohn's Disease Exclusion Diet Maintains Remission in Pediatric Crohn's Disease; Randomized Controlled Trial.
Clin Gastroenterol Hepatol
December 2024
Department of Pediatrics, University of Alberta, Edmonton, AB, Canada; Department of Physiology, University of Alberta, Edmonton, AB, Canada. Electronic address:
Background & Aims: The Crohn's Disease (CD) Exclusion Diet (CDED)+Partial Enteral Nutrition (PEN) is effective for inducing remission in mild-moderate CD. We assessed whether a 2-week course of Exclusive Enteral Nutrition (EEN), followed by CDED+PEN is superior to 8 weeks of EEN in sustaining clinical remission at week 14 in mild-to-severe CD and if CDED+PEN can maintain remission to week 24.
Methods: This international, multicenter, randomized-controlled trial compared 2-weeks of EEN (Modulen®IBD) followed by 3 phases of the CDED+PEN (henceforth CDED) to 8 weeks of EEN, followed by PEN with free diet up to week 24 (henceforth EEN).
Comprehensive analysis of heterogeneity and cell-cell interactions in Crohn's disease reveals novel location-specific insights.
J Adv Res
December 2024
Department of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, Shanghai Institute of Digestive Disease, Inflammatory Bowel Disease Research Center, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Division of Gastroenterology and Hepatology, Baoshan Branch, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China. Electronic address:
Introduction: In Crohn's disease (CD), lesions are mainly distributed in a segmental manner, with the primary sites of involvement being the ileum and colon. Heterogeneity in colon and ileum results in location-specific clinical presentations and therapeutic responses. Mucosal healing tends to be more readily and quickly achieved in the colon than in the ileum, where lesions are more likely to develop into complex behaviors.
View Article and Find Full Text PDFThe necessity of validity diagnostics when drawing causal inferences from observational data: lessons from a multi-database evaluation of the risk of non-infectious uveitis among patients exposed to Remicade.
BMC Med Res Methodol
December 2024
Janssen Research & Development LLC, Global Epidemiology Organization, Raritan, NJ, USA.
Background: Autoimmune disorders have primary manifestations such as joint pain and bowel inflammation but can also have secondary manifestations such as non-infectious uveitis (NIU). A regulatory health authority raised concerns after receiving spontaneous reports for NIU following exposure to Remicade, a biologic therapy with multiple indications for which alternative therapies are available. In assessment of this clinical question, we applied validity diagnostics to support observational data causal inferences.
View Article and Find Full Text PDFFaecal calprotectin-based strategy for long-term monitoring of patients with Crohn's disease without or with mild endoscopic postoperative recurrence.
Dig Liver Dis
December 2024
Gastroentrology Department, Hospital Germans Trias i Pujol, 08916 Badalona, Catalonia, Spain; CIBEREHD, Madrid, Spain; Departament de Medicina, Universitat Autònoma de Barcelona, Catalonia, Spain. Electronic address:
Background: Endoscopic evaluation 6-12 months after ileocolonic resection (ICR) in Crohn's disease (CD) is advised to assess the development of postoperative recurrence (POR) but no further recommendations are available for long-term monitoring if no POR is noticed.
Methods: Prospective, open-label, study including asymptomatic patients with CD and ICR in whom no POR was observed at the last endoscopic evaluation. Patients were followed-up for two years and ileocolonoscopy was performed by means of a faecal calprotectin (FC)-based strategy.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!