Dientamoeba fragilis


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Di·ent·a·moe·ba frag·i·lis

(dī'ent-ă-mē'bă fraj'i-lis),
A species of small amebalike flagellates, formerly considered a true ameba, now recognized as an ameboflagellate related to Trichomonas, parasitic in the large intestine of humans and certain monkeys; may be nonpathogenic, but believed to be capable of sometimes causing low-grade inflammation with mucous diarrhea and gastrointestinal disturbance in humans.
Farlex Partner Medical Dictionary © Farlex 2012

Di·ent·a·moe·ba frag·i·lis

(dī'ent-ă-mē'bă fră-jil'ŭs)
A species of small amebalike flagellates related to Trichomonas, parasitic in the large intestine of humans and certain monkeys; usually nonpathogenic, but sometimes causing low-grade inflammation with mucous diarrhea.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

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.
See also: Dientamoeba
Medical Dictionary, © 2009 Farlex and Partners
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. These results confirmed the occurrence of SH in this peafowl and add to the diagnosis of this disease in birds from Brazil.
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%).
intestinalis, which was present in 19% of children, identified pathogens included Blastocystis hominis (10% of children), Dientamoeba fragilis (5%), and Entamoeba histolytica (1%).
Los humanos pueden ser infectados por varios tipos de protozoarios intestinales que incluyen amibas, flagelados, coccidios y ciliados, tales como: Entamoeba coli, Endolimax nana, Entamoeba hartmanni, Iodamoeba butschlii, Dientamoeba fragilis y Pentatrichomonas hominis, los cuales son reconocidos como comensales, mientras que Entamoeba histolytica, Giardia intestinalis, Blastocystis hominis, Cryptosporidium sp.