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Related Experiment Videos

The pathogenesis of amoebiasis.

A Martínez-Palomo1

  • 1CINVESTAV, Instituto Politécnico Nacional, Mexico DF.

Parasitology Today (Personal Ed.)
|April 1, 1987
PubMed
Summary

Amoebiasis, caused by Entamoeba histolytica, presents as luminal or invasive disease. Pathogenic strains cause significant illness, while non-pathogenic types do not.

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Area of Science:

  • Medical Parasitology
  • Infectious Diseases

Background:

  • Amoebiasis is a globally prevalent infection caused by Entamoeba histolytica.
  • Humans are the primary reservoir, with infection transmitted via cysts in feces.
  • Two recognized forms exist: asymptomatic luminal amoebiasis and invasive amoebiasis.

Purpose of the Study:

  • To discuss the pathology associated with pathogenic Entamoeba histolytica.
  • To differentiate between pathogenic and non-pathogenic strains of E. histolytica.

Main Methods:

  • Review of existing literature on Entamoeba histolytica.
  • Discussion of isoenzyme markers for differentiating pathogenic and non-pathogenic strains.

Main Results:

  • Pathogenic E. histolytica can invade the intestinal mucosa, leading to dysentery, amoeboma, and extraintestinal lesions like liver abscess.
  • Non-pathogenic E. histolytica strains do not cause apparent symptoms.
  • Debate exists regarding whether pathogenic and non-pathogenic types are distinct or interconvertible.

Conclusions:

  • Pathogenic Entamoeba histolytica poses significant health risks, causing invasive disease.
  • Understanding the distinction and potential interconversion of E. histolytica strains is crucial for disease management.

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