Entamoeba coli
Entamoeba coli | |
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Scientific classification | |
Domain: | Eukaryota |
Phylum: | Amoebozoa |
Family: | Entamoebidae |
Genus: | Entamoeba |
Species: | E. coli
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Binomial name | |
Entamoeba coli (Grassi, 1879)
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Entamoeba coli is a non-pathogenic
Clinical significance
The presence of E.coli is not cause in and of itself to seek treatment as it is considered harmless.
Morphology
Entamoeba species all come in monogenetic forms, or having one generation lifecycles. E. coli has "three distinct morphological forms exist airing the life cycle-Trophozoite, Pre-cystic stage and Cystic stage". This lifecycle gives rise to the general way of how Entamoeba species form. This parasite has one large nucleus with a thick membrane surrounding the nucleus. There are many chromatin inside the nucleus, and one large, irregular-shaped karyosome.[8] The chromatin is clumped, and uneven in disperse inside the nucleus. The parasite forms by binary fission like most Entamoeba spp.[9] The mature cyst is the infective stage, and is known to survive longer than those of E. histolytica. The cysts can survive three to four months outside the host's body after desiccation.[8] The cysts cause infection by consuming contaminated food and drinks like waste water. Sometimes insects and rodents carry the parasite to cause infection in the food and drinks. Excystation happens once the cysts are ingested, and travel to the large intestine.[2]
Diagnosis
E. coli
Pathology
E. coli are mostly harmless parasites, and do not cause harm to the host. However, there have been cases of internal bleeding. Usually, the cytoplasm of the E. coli "does not contain red blood cells, except in the rare case of patients with intestinal hemorrhage" that leads to blood in the stools of these patients. This may lead to intestinal lesions. Other problems that E. coli causes are usually result from having too many in the large intestine. For example, large populations of E. coli may lead to "dyspepsia, hyperacidity, gastritis, and indigestion"; these are common problems of most intestinal parasites.[8]
Treatment
There is generally no need to treat for E. coli, due to the rarity of this parasite becoming infectious. In one exceptional situation, E. coli was found to be infectious: in northern Europe, stool samples and electron microscopy revealed large populations of the amoeba within a group of patients with persistent diarrhea.
See also
References
- ISBN 978-0-9631172-1-2.
- ^ a b "Atlante dei protozoi intestinali umani - sezione AMEBE identificazione microscopica di Giovanni Swierczynski e Bruno Milanesi". Atlas-protozoa.com. Retrieved 2015-12-03.
- PMID 14605136.
- ISBN 9781420027976. Retrieved 2015-12-03.
- ^ "Entamoeba". Microscope-microscope.org. Retrieved 2015-12-03.
- ^ "CDC - Nonpathogenic (Harmless) Intestinal Protozoa - Biology". Cdc.gov. 2015-03-17. Retrieved 2015-12-03.
- ^ "CDC - DPDx - Intestinal Amebae". Cdc.gov. 2013-11-29. Retrieved 2015-12-03.
- ^ a b c d Saritha Pujari (2015-11-14). "Parasite Entamoeba Coli : Life Cycle, Mode of Infection and Treatment". Yourarticlelibrary.com. Retrieved 2015-12-03.
- ^ Don Lehman. "Diagnostic Parasitology; E. coli". Udel.edu. Retrieved 2015-12-03.
- ^ "Intestinal Protozoa". Tulane.edu. 2015-06-03. Retrieved 2015-12-03.
- ^ Jim McMorran; Damian Crowther; Stew McMorran; Steve Youngmin; Ian Wacogne; Jon Pleat; Clive Prince. "Entamoeba coli - General Practice Notebook". Gpnotebook.co.uk. Retrieved 2015-12-03.
- ^ "CDC - DPDx - Intestinal Amebae - Images". Cdc.gov. 2013-11-29. Retrieved 2015-12-03.
- PMID 17630338.
- S2CID 19124321.
- PMID 14605136.
- ^ .
Further reading
- Hashmey R; Genta RM; White Jr (1997). "Parasites and Diarrhea. I: Protozoans and Diarrhea". Journal of Travel Medicine. 4 (1): 17–31. PMID 9815473.