Dientamoeba

Dientamoeba

 [di″ent-tah-me´bah]
a genus of small highly active, usually nonpathogenic or mildly pathogenic ameboid protozoa parasitic in the large intestine of humans and certain monkeys. D. fragilis has been associated with human infection, which is manifested chiefly by diarrhea; abdominal pain; bloody, mucoid, or loose stools; and flatulence.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

Dientamoeba

(dī″ĕn-tă-mē′bă)
A genus of parasitic protozoa marked by possession of two similar nuclei.

Dientamoeba fragilis

A species of parasitic ameba inhabiting the intestine of humans. Persons infected may have diarrhea with blood or mucus, abdominal pain, and anal pruritus. This ameba has been found inside the eggs of pinworms. The eggs may act as a vector.
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References in periodicals archive ?
Various protozoa and parasites such as Plasmodium falciparum, Dientamoeba fragilis, Blastocysts, Cryptosporidium spp., Entamoeba histolytica, Entamoeba dispar, and Giardia intestinalis can lead to symptoms of asthma, atopic dermatitis, food allergy/intolerance, mast cell activation, anaphylaxis, and other inflammatory conditions.
Active ulcerative colitis associated with low prevalence of Blastocystis and Dientamoeba fragilis infection.
Direct sequencing and phylogenetic analyses confirmed that the isolate of the flagellated trichomonad identified from this investigation is more phylogenetically related to H meleagridis than Tetratrichomonas gallinarum, Tritrichomonas foetus, and Dientamoeba fragilis.
Less common parasites include Entamoeba Cystoisospora belli, Dientamoeba fragilis, Strongloides stercoralis, and microsporidia.
(%) positive results available intestinal parasites 217 96 (44.2) * Tuberculosis 181 49 (27.1) ([dagger]) Malaria 52 7 (13.5) Hepatitis A virus 161 14 (8.7) Hepatitis B virus 233 6 (2.6) Syphilis 215 0 ([dagger] [double dagger]) Hepatitis C virus 219 0 ([dagger] [double dagger]) HiV 218 1 (0.5) ([double dagger]) * Evidence of infection with [greater than or equal to]1 of the following: Giardia intestinalis flagellates (n = 75, 34.6%), Blastocystis hominis protozoa (n = 34, 15.7%), Hymenolepsis nana tapeworms (n = 2, 0.9%), Dientamoeba fragilis protozoa (n = 2, 0.9%), Ascaris lumbncoides roundworms (n = 2, 0.5%), or Tnchuns trichiura roundworms (0.5%).
diff-epi, Cryptosporidium parvum, platform Giardia intestinalis, Dientamoeba fragalis, Entamoeba histolytica, Blastocystis hominis, Salmonella spp., Shigella spp., Campylobacter spp., Listeria monocytogenes, Yersinia entercolitica, STEC, Norovirus GI, Norovirus Gil, Adenovirus, Rotavirus, Astrovirus, Sapovirus * C.
intestinalis, which was present in 19% of children, identified pathogens included Blastocystis hominis (10% of children), Dientamoeba fragilis (5%), and Entamoeba histolytica (1%).
Other identified species, generally considered nonpathogenic or of indeterminate significance, were intestinal protozoans or stramenopiles: Blastocystis hominis, Chilomastix mesnilii, Dientamoeba fragilis, Endolimax nana, Entamoeba coli, Entamoeba hartmanii, and lodomoeba butchlii.