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Related Concept Videos

Inflammatory Bowel Disease III: Diagnostic Studies and Management I-Nutritional Therapy01:30

Inflammatory Bowel Disease III: Diagnostic Studies and Management I-Nutritional Therapy

Various diagnostic tests are employed in the diagnostic process for Inflammatory Bowel Disease (IBD), particularly to differentiate between Crohn's disease and ulcerative colitis.
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 colonic...
Inflammatory Bowel Disease III: Crohn's Disease01:25

Inflammatory Bowel Disease III: Crohn's Disease

Crohn’s disease is a chronic, relapsing form of inflammatory bowel disease characterized by segmental, transmural inflammation that can affect any part of the gastrointestinal tract. Its pathogenesis arises from a combination of genetic susceptibility, environmental exposures, epithelial barrier dysfunction, and immune dysregulation. Together, these factors lead to an exaggerated immune response against components of the gut microbiome.Genetic and Environmental InfluencesMultiple genetic...
Inflammatory Bowel Disease I: Introduction01:26

Inflammatory Bowel Disease I: Introduction

Inflammatory bowel disease is a group of chronic disorders marked by recurrent inflammation of the gastrointestinal tract due to an abnormal immune response against gut microflora. This leads to tissue damage. The two main forms are Crohn’s disease and ulcerative colitis.Crohn’s DiseaseCrohn’s disease is a relapsing inflammatory disorder that can affect any part of the GI tract, from the mouth to the anus. It involves all layers of the bowel wall (transmural) and shows “skip lesions” in which...
Inflammatory Bowel Disease IV: Pharmacological Management01:29

Inflammatory Bowel Disease IV: Pharmacological Management

Upon diagnosis, managing Inflammatory Bowel Disease (IBD) involves addressing several crucial aspects. The primary goals include resting the bowel, correcting malnutrition, and providing symptomatic relief. Resting the bowel may consist of medications to reduce inflammation and promote healing. Correcting malnutrition is essential, often requiring dietary adjustments and nutritional supplements. Symptomatic relief aims to ease pain, diarrhea, and other discomforts in IBD.
Pharmacologic...
Inflammatory Bowel Disease II: Ulcerative Colitis01:20

Inflammatory Bowel Disease II: Ulcerative Colitis

Ulcerative colitis is a chronic inflammatory disorder of the colon characterized by continuous mucosal inflammation that typically begins in the rectum and extends proximally in a uniform pattern. Its pathogenesis involves a complex interplay of genetic predisposition, immune dysregulation, and environmental influences. These factors converge to impair the colon’s epithelial defenses and promote an exaggerated inflammatory response against luminal contents.Breakdown of the Mucosal BarrierA...
Inflammatory Bowel Disease II: Crohn's Disease01:30

Inflammatory Bowel Disease II: Crohn's Disease

Introduction
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 transmural...

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Nutrigenomics and inflammatory bowel diseases.

Lynnette R Ferguson1

  • 1Discipline of Nutrition, Faculty of Medical & Health Sciences, The University of Auckland, Private Bag 92019, Auckland, New Zealand. l.ferguson@auckland.ac.nz

Expert Review of Clinical Immunology
|July 3, 2010
PubMed
Summary

Nutrigenomics explains how gene-diet interactions influence inflammatory bowel diseases like Crohn's disease and ulcerative colitis. Genetic variations dictate individual dietary needs, impacting disease susceptibility and management.

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Area of Science:

  • Nutrigenomics and Molecular Gastronomy
  • Gastroenterology and Immunology

Background:

  • Inflammatory bowel diseases (IBD), including Crohn's disease (CD) and ulcerative colitis (UC), have a genetic component influenced by diet and environment.
  • Genetic variability likely explains differing dietary requirements and intolerances observed in IBD patients, reconciling conflicting research findings.

Purpose of the Study:

  • To explore the role of nutrigenomics in understanding gene-diet interactions within the context of IBD.
  • To differentiate the genetic underpinnings of Crohn's disease and ulcerative colitis and their relationship to dietary factors.

Main Methods:

  • Review of existing literature on nutrigenomics, IBD genetics, and environmental influences.
  • Analysis of genetic susceptibility in IBD, categorizing genes involved in bacterial recognition, immune response, and epithelial barrier integrity.
  • Examination of case-control studies linking genetic profiles to distinct dietary requirements.

Main Results:

  • Three major gene classes are implicated in Crohn's disease: bacterial recognition/autophagy, secondary immune response, and epithelial barrier integrity.
  • While sharing genetic overlap with CD, UC appears more strongly associated with genes related to epithelial barrier function.
  • Distinct genetic profiles in CD and UC suggest specific dietary requirements for each condition.

Conclusions:

  • Genetic variability is a key determinant of dietary needs and intolerances in IBD.
  • Nutrigenomic approaches hold promise for managing IBD remission and potentially preventing disease development.
  • Personalized nutrition strategies based on individual genetic makeup could revolutionize IBD care.