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Related Concept Videos

Gastrointestinal Motility Disorders01:20

Gastrointestinal Motility Disorders

Gastrointestinal or GI motility disorders are characterized by irregular gastrointestinal tract movements, disrupting food transit from the mouth to the anus. They are caused by damage or dysfunction in gut muscles or nerves. These disorders can cause symptoms such as severe constipation, diarrhea, abdominal pain, and swallowing difficulties. Disorders can affect any segment of the GI tract and range widely in severity, from common conditions like GERD to life-threatening conditions like...
Chronic Bowel Disorders: Introduction01:17

Chronic Bowel Disorders: Introduction

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...
Irritable Bowel Syndrome I: Introduction01:17

Irritable Bowel Syndrome I: Introduction

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...
Inflammatory Bowel Disease I: Ulcerative Colitis01:27

Inflammatory Bowel Disease I: Ulcerative Colitis

Introduction
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 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...
Irritable Bowel Syndrome01:23

Irritable Bowel Syndrome

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 PatternsDisordered...

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Related Experiment Videos

Intestinal malabsorption syndromes.

T A Brasitus1, M D Sitrin

  • 1Department of Medicine, University of Chicago, Illinois 60637.

Annual Review of Medicine
|January 1, 1990
PubMed
Summary
This summary is machine-generated.

This review covers intestinal malabsorption causes, including acquired immunodeficiency syndrome (AIDS), celiac sprue, and bacterial overgrowth. It highlights recent developments and diagnostic challenges in the elderly.

Related Experiment Videos

Area of Science:

  • Gastroenterology
  • Internal Medicine
  • Clinical Review

Background:

  • Intestinal malabsorption presents diverse etiologies and clinical challenges.
  • Understanding specific causes is crucial for effective patient management.
  • Age-related factors significantly impact malabsorptive disorders.

Purpose of the Study:

  • To review selected causes of intestinal malabsorption.
  • To discuss recent advancements in understanding malabsorption pathogenesis and clinical features.
  • To examine the etiology and diagnostic difficulties of malabsorption in elderly populations.

Main Methods:

  • Literature review of selected causes of intestinal malabsorption.
  • Focus on acquired immunodeficiency syndrome (AIDS), celiac sprue, and small bowel bacterial overgrowth.
  • Inclusion of recent developments and challenges in the elderly.

Main Results:

  • Detailed review of pathogenesis and clinical features for AIDS-related malabsorption.
  • Comprehensive overview of celiac sprue and small bowel bacterial overgrowth.
  • Analysis of age-specific etiological factors and diagnostic hurdles.

Conclusions:

  • Recent developments offer new insights into malabsorption mechanisms.
  • Effective diagnosis and management require consideration of specific etiologies.
  • Malabsorption in the elderly presents unique diagnostic challenges demanding tailored approaches.