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.

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.

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

Dientamoeba

a genus of amebas commonly found in the colon and appendix of primates and of humans.

Dientamoeba fragilis
occurs in the cecum of humans and monkeys. A species that has been associated with diarrhea but its pathogenicity is unclear.
References in periodicals archive ?
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.
con 91 muestras de heces positivas para este parasito, se encontro que 22% (20/91) de estas muestras presentaban coinfeccion con otro microorganismo, siendo mas comun la coinfeccion con protozoarios como Giardia intestinalis, Dientamoeba fragilis y Endolimax nana y con bacterias como Campylobacter jejuni.
Entamoeba histolytica, Dientamoeba fragilis y Giardia intestinalis (17).
intestinalis, which was present in 19% of children, identified pathogens included Blastocystis hominis (10% of children), Dientamoeba fragilis (5%), and Entamoeba histolytica (1%).
La principal manifestacion clinica atribuible a los protozoarios es la diarrea aguda o cronica, a la ya tradicional lista de parasitos intestinales Entamoeba histolytica, Giardia lamblia y Balantidium coli, se agregan otros agentes patogenos encontrados con relativa frecuencia en ninos con diarrea tales como: Dientamoeba fragilis, Isospora belli, Sarcocyties sp y Cryptosporidium spp.
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.
Dientamoeba fragilis shares a recent common evolutionary history with the trichomonads.
8% of the identifications of Dientamoeba fragilis, which was reported from a total of 24 states.
Dientamoeba fragilis, isospora belli, Balantidium coli, or Strongyloides stercoralis may cause occasional cases of TD.
The flagellated protozoan Dientamoeba fragilis is one of the most common parasites in the intestinal tract of humans (1).