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Updated: Apr 17, 2026
11:49
Analysis of the Epithelial Damage Produced by Entamoeba histolytica Infection
Published on: June 12, 2014
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Entamoeba dispar: Could it be pathogenic
Fabrício Marcus Silva Oliveira1, Elisabeth Neumann2, Maria Aparecida Gomes3
1Department of General Pathology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil.
Tropical Parasitology
|February 25, 2015
Summary
Entamoeba dispar, once thought non-pathogenic, can cause amebiasis symptoms similar to Entamoeba histolytica. Recent studies show E. dispar strains produce significant intestinal and liver lesions in humans.
Area of Science:
- Medical Parasitology
- Infectious Diseases
- Molecular Biology
Background:
- Amebiasis is caused by Entamoeba histolytica.
- Entamoeba dispar, morphologically similar to E. histolytica, was considered non-pathogenic.
- E. dispar is a potential model organism for studying amebiasis pathogenesis.
Purpose of the Study:
- To investigate the pathogenic potential of Entamoeba dispar.
- To clarify the role of E. dispar in human amebiasis.
- To present new findings on E. dispar biology and disease manifestation.
Main Methods:
- Isolation of E. dispar strains from symptomatic patients.
- Experimental induction of liver and intestinal lesions.
- Detection of E. dispar DNA in clinical samples.
Main Results:
- E. dispar strains isolated from Brazilian patients produced lesions similar to E. histolytica.
- E. dispar DNA was detected in patients with amebic liver abscess.
- Evidence suggests E. dispar can cause significant pathology in humans.
Conclusions:
- Entamoeba dispar may possess pathogenic capabilities previously underestimated.
- The distinction between E. histolytica and E. dispar may be less clear-cut in disease causation.
- Further research is needed to fully understand E. dispar's role in amebiasis.
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