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Related Concept Videos

Irritable Bowel Syndrome01:23

Irritable Bowel Syndrome

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DefinitionIrritable bowel syndrome (IBS) is a functional gastrointestinal disorder characterized by recurrent combinations of abdominal pain, bloating, diarrhea, or constipation.Pathophysiology of irritable bowel syndromeIts pathophysiology is multifactorial, involving disturbances in motility, sensory processing, microbial balance, barrier integrity, and gut–brain communication. These mechanisms interact to produce symptoms that vary across IBS subtypes.Altered Motility...
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Irritable Bowel Syndrome I: Introduction01:17

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Irritable Bowel Syndrome (IBS) is characterized by functional disturbances in the gastrointestinal system, presenting a cluster of symptoms without evident structural or biochemical abnormalities. It primarily affects the large intestine and may cause abdominal pain, bloating, excessive gas, diarrhea, constipation, or both.
IBS is a chronic condition that can persist over a long period or recur frequently.
The pathogenesis of IBS involves a complex interplay of the following factors:
Altered...
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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...
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Irritable Bowel Syndrome II: Clinical Features and Diagnostic Evaluation01:30

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Irritable Bowel Syndrome II: Clinical Features and Diagnostic Evaluation
Irritable Bowel Syndrome (IBS) is classified into subtypes based on the predominant bowel habits as determined by the Bristol Stool Form Scale (BSFS). The subtypes are:
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Irritable Bowel Syndrome III: Medical and Nursing Management01:30

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Managing Irritable Bowel Syndrome (IBS) involves a multifaceted approach, including lifestyle modifications, dietary changes, and medication.
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Chronic Bowel Disorders: Introduction01:17

Chronic Bowel Disorders: Introduction

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Chronic bowel diseases are a group of long-term conditions affecting the digestive tract, characterized by inflammation and damage to the gut lining. These conditions primarily include irritable bowel syndrome and inflammatory bowel disease.
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...
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Diet and irritable bowel syndrome.

Anusha Thomas1, Eamonn M M Quigley

  • 1aDepartment of Internal Medicine bDivision of Gastroenterology and Hepatology, Houston Methodist Hospital, Weill Cornell Medical College, Houston, Texas, USA.

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Dietary interventions like the low-FODMAP diet are increasingly recognized for managing irritable bowel syndrome (IBS) symptoms. Research highlights the impact of fiber, gluten, and probiotics on IBS, offering personalized approaches.

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Area of Science:

  • Gastroenterology
  • Nutrition Science
  • Microbiome Research

Background:

  • Irritable Bowel Syndrome (IBS) patients frequently report symptom exacerbation after food consumption.
  • Historically, research on specific food triggers in IBS has been limited.

Purpose of the Study:

  • To review recent scientific literature on the relationship between diet and Irritable Bowel Syndrome (IBS).
  • To explore the impact of specific dietary components on IBS symptomology.

Main Methods:

  • Literature review of recent studies on diet and IBS.
  • Analysis of research concerning fiber, gluten, fermentable oligosaccharides, disaccharides, monosaccharides, and polyols (FODMAPs), and probiotics in IBS.

Main Results:

  • Recent research reveals complex food-symptom interactions in IBS.
  • Variable effects of fiber and susceptibility to poorly digested carbohydrates (leading to the low-FODMAP diet) are noted.
  • The role of gluten restriction is less certain, while probiotics show continued interest.

Conclusions:

  • Diet significantly influences IBS symptoms.
  • Fiber, FODMAPs, gluten, and probiotics are key areas of focus in dietary management for IBS.
  • Individualized dietary strategies may be beneficial for certain IBS sufferers.