Blastocystis hominis, un gran desconocido

Bustelo, M. A. Méndez; Joga, M. do Muiño; Sánchez, Sergio; López, E. Ben; Taboada, J. Llovo

doi:10.4321/s1139-76322015000100009

Cited by 7 publications

(2 citation statements)

References 21 publications

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“…Consistently with evidence from similar studies 3,15 and medical literature the most frequent microorganism found was Blastocystis hominis (63,9%), whose pathogenicity is still under investigation 18 . B. hominis infection must be correlated with presence of other parasites, chronicity of the infection and immune status of the patient in order to determine whether the microorganism is the source of the symptoms, and if treatment of the patients is necessary (19,20).…”

Section: Discussionsupporting

confidence: 85%

Screening for intestinal parasites in adults from three different regions of Colombia

Carvajal-Restrepo

Orrego-Morales

Vega-Orrego

et al. 2018

Infect

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Intestinal parasitosis (IP) is a public health problem in developing countries affecting one fourth of the global population. IP are common studied in children, neglecting the adults that are also at high risk and source of transmission. A screening study was performed with a convenience sample in three Colombian regions: Guachené (Cauca), Quibdó (Chocó), and Urabá (Antioquia). Feces samples from 284 volunteers (older than 18 years old) were tested by microscopy to identify parasite ova and cysts. The IP frequency was 14.5%, and 52.1% were males. 63.2% of the parasitized patients exhibited diarrhea, and/or abdominal pain with significant association. 39.5% had single parasitic infection and 60.5% had multiple parasites: Blastocystis hominis (63.9%), Entamoeba hystolitica/dispar (39.4%), Endolimax nana (33.3%), Ascaris lumbricoides (22.2%), Giardia lamblia (19.4%), Entamoeba coli (13.9%), Trichuris trichiura (11.1%), hookworm species (11.1%), Strongyloides stercolaris (5.6%), and Iodamoeba butschlii (2.8%). A multivariate approach was used to determine predictor factors for IP: male gender, rainwater as drinking source, and feces disposal different to toilet, latrine or septic tank were positively associated with infection. This study evidences that adult population, not only children from vulnerable areas of Colombia, must have to include as a risk for intestinal parasitism.

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Section: Discussionsupporting

confidence: 85%

Screening for intestinal parasites in adults from three different regions of Colombia

Carvajal-Restrepo

Orrego-Morales

Vega-Orrego

et al. 2018

Infect

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“…Inicialmente fue considerado un comensal; sin embargo, en las últi-mas décadas hay cada vez más evidencias que sustentan que Blastocystis spp. es patógeno y se asocia a una amplia variedad de trastornos gastrointestinales simples (dolor abdominal, diarrea, flatulencia, vómitos) (2,3) y cuadros más complejos, como anemia ferropéni-ca (2) , urticaria (2,4) , síndrome de intestino irritable (2,5,6) , cáncer colorrectal (7)(8)(9) , artritis reactiva (10) e incluso tiroiditis de Hashimoto (11) . El conocimiento de sus múltiples impactos sobre la salud llevó a que se le preste más atención, por lo que probablemente la prevalencia de blastocistosis se haya incrementado en los últimos años.…”

Section: Introductionunclassified

Elevada prevalencia de Blastocystis spp. en niños de una escuela periurbana

2016

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ResumenIntroducción. La parasitosis intestinal es un grave problema de salud pública en países en vía de desarrollo; la blastocistosis es una parasitosis emergente. Objetivos. Determinar la prevalencia de infección por Blastocystis spp. y de otros enteroparásitos en niños de una escuela periurbana. Diseño. Estudio observacional y transversal. Lugar. Escuela ubicada en el distrito de Yura en Arequipa, Perú. Participantes. 83 niños, entre 4 y 8 años de edad. Intervenciones. Las muestras de heces de los niños fueron analizadas con el método Teleman modificado; se hizo un análisis descriptivo a través del cálculo de frecuencias. Principales medidas de resultados. Presencia del parásito intestinal. Resultados. La prevalencia de Blastocystis spp. fue 81,9% (68/83), la prevalencia global de parásitos fue 96,4% (80/83); además, 80,7% (67/83) tenía más de un tipo de parásito. Conclusiones. Existe una elevada prevalencia de Blastocystis spp. y de otros enteroparásitos; también, un elevado poliparasitismo en la población escolar estudiada. Es el primer estudio realizado en dicha comunidad. Palabras clave. Infecciones por Blastocystis; Parasitosis Intestinales; Niño; Perú. Abstract Introduction. Intestinal parasitosis is a serious public health problem in developing countries, and blastocystosis is an emerging parasitosis. Objectives. To determine the prevalence of infection by Blastocystis spp. and other intestinal parasites in children from a periurban school. Design. Observational and transversal study. Location. A school located in the district of Yura in Arequipa, Peru. Participants. 83 children between 4 and 8 years old. Interventions. Stool samples obtained from the children were analyzed with the modified Telemann method; a descriptive analysis was done by calculating frequency. Main outcome measures. Presence of the intestinal parasite. Results. The prevalence of Blastocystis spp. was 81.9% (68/83), the overall prevalence of parasites was 96.4% (80/83), and 80.7% (67/83) had more than one type of parasite. Conclusions. There was a high prevalence of Blastocystis spp. and other intestinal parasites in the sample studied. There was also a high polyparasitism in the school population studied. This is the first study in this community.

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