Johns Hopkins HIV Guide
Entamoeba histolytica
Entamoeba histolytica is a topic covered in the Johns Hopkins HIV Guide.
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MICROBIOLOGY
- Protozoan parasite, causes diarrhea, dysentery, invasive intestinal, and extraintestinal disease (e.g., amebic liver abscess).
- Quadrinucleate cyst passed in feces transmits the infection. Excystation occurs in small intestine. Trophozoites migrate to large intestine and invade mucosa.[9]
- Galactose/N-acetyl-D-galactosamine (Gal/GalNAc)-specific lectin mediates parasite adhesion to colonic mucin.
- Invasion related to penetration of mucous layer, killing of epithelial cells by amoebapore (5kDa protein).
- Deep ulcerations that spread in the submucosa form flask-shaped ulcers and cause microhemorrhages.
- Immunity mediated by mucosal IgA recognition of Gal/GalNAc lectin.
-- To view the remaining sections of this topic, please log in or purchase a subscription --
MICROBIOLOGY
- Protozoan parasite, causes diarrhea, dysentery, invasive intestinal, and extraintestinal disease (e.g., amebic liver abscess).
- Quadrinucleate cyst passed in feces transmits the infection. Excystation occurs in small intestine. Trophozoites migrate to large intestine and invade mucosa.[9]
- Galactose/N-acetyl-D-galactosamine (Gal/GalNAc)-specific lectin mediates parasite adhesion to colonic mucin.
- Invasion related to penetration of mucous layer, killing of epithelial cells by amoebapore (5kDa protein).
- Deep ulcerations that spread in the submucosa form flask-shaped ulcers and cause microhemorrhages.
- Immunity mediated by mucosal IgA recognition of Gal/GalNAc lectin.
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Last updated: July 31, 2016
Citation
Spacek, Lisa A. "Entamoeba Histolytica." Johns Hopkins HIV Guide, 2016. Johns Hopkins Guides, www.hopkinsguides.com/hopkins/view/Johns_Hopkins_HIV_Guide/545065/2/Entamoeba_histolytica.
Spacek LA. Entamoeba histolytica. Johns Hopkins HIV Guide. 2016. https://www.hopkinsguides.com/hopkins/view/Johns_Hopkins_HIV_Guide/545065/2/Entamoeba_histolytica. Accessed March 30, 2023.
Spacek, L. A. (2016). Entamoeba histolytica. In Johns Hopkins HIV Guide https://www.hopkinsguides.com/hopkins/view/Johns_Hopkins_HIV_Guide/545065/2/Entamoeba_histolytica
Spacek LA. Entamoeba Histolytica [Internet]. In: Johns Hopkins HIV Guide. ; 2016. [cited 2023 March 30]. Available from: https://www.hopkinsguides.com/hopkins/view/Johns_Hopkins_HIV_Guide/545065/2/Entamoeba_histolytica.
* Article titles in AMA citation format should be in sentence-case
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