Related Experiment Video
Updated: Sep 3, 2025

Chronic Salmonella Infection Induced Intestinal Fibrosis
Published on: September 22, 2019
Chromosomal Numerical Aberrations and Rare Copy Number Variation in Patients with Inflammatory Bowel Disease
Paulina Dirvanskyte1, Bhaskar Gurram2, Chrissy Bolton3,4
1Translational Gastroenterology Unit and Biomedical Research Centre, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, UK.
Turner syndrome (monosomy X) increases inflammatory bowel disease (IBD) risk and onset age. A microduplication at the IL2RA/IL15R loci may also predispose to very-early-onset IBD, though with low penetrance.
Area of Science:
- Genetics
- Gastroenterology
- Human Biology
Background:
- Inflammatory bowel diseases (IBD) have a complex genetic basis, with rare variants potentially causing monogenic intestinal inflammation.
- The role of chromosomal abnormalities in IBD susceptibility remains unclear.
- This study investigates the impact of rare numerical and structural chromosomal abnormalities on IBD.
Conclusions:
- Turner syndrome is linked to heightened susceptibility to intestinal inflammation.
- Duplication of the IL2RA/IL15R loci may contribute to IBD risk.
Related Concept Videos
Inflammatory Bowel Disease II: Crohn's Disease
Inflammatory bowel disease, commonly known as IBD, refers to a collection of disorders that lead to persistent inflammation of the gastrointestinal tract. The two types of IBD are ulcerative colitis, which impacts the colon, and Crohn's disease, which can involve any part of the gastrointestinal segment.
Crohn's disease
Crohn's disease is a chronic, systemic inflammatory bowel disease (IBD) that predominantly affects the gastrointestinal tract. It is marked by...
Inflammatory Bowel Disease I: Ulcerative Colitis
Inflammatory bowel disease, or IBD, encompasses a group of disorders characterized by chronic inflammation or ulceration of the gastrointestinal tract.
Risk Factors
The exact cause of IBD remains unclear, although it is believed to be due to a mix of genetic, environmental, microbial, and immune factors. Genetic factors are significant in determining susceptibility to IBD, with family history being a critical risk factor. Individuals with a first-degree relative who has IBD are at...
Inflammatory Bowel Disease III: Diagnostic Studies and Management I-Nutritional Therapy
Diagnostic studies
A colonoscopy is the definitive screening test, distinguishing ulcerative colitis from other colon diseases with similar symptoms. During a colonoscopy test, inflamed mucosa with exudate ulcerations can be observed, and biopsies are taken to determine the histologic characteristics of the...
Comparing Copy Number Variations and SNPs
Copy number variations or CNVs are the structural variations that cover more than 1kb of DNA sequence. The single nucleotide polymorphism (SNP), on the other hand, is a single nucleotide change or a point mutation that is found in more than 1%...
Chronic Bowel Disorders: Introduction
Irritable Bowel Syndrome (IBS) is a common disorder affecting the gastrointestinal tract. The distinctive feature is recurrent abdominal pain associated with altered bowel movements, manifesting as constipation, diarrhea, or fluctuating between both. The...
Inflammatory Bowel Disease IV: Pharmacological Management
Pharmacologic...

