Blastocistosis en pre-escolares de Ciudad Bolívar, Venezuela

Gonçalves, Eloisa da Graça do Rosario; Sabroza, Paulo Chagastelles; Hofer, Ernesto

doi:10.1590/s0102-311x1998000200016

Cited by 7 publications

(5 citation statements)

References 19 publications

(30 reference statements)

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“…In a study of patients with hematological malignancies undergoing chemotherapy-induced neutropenia, Blastocystis was the most common parasite isolated, and infection was linked to abdominal pain, diarrhea, and flatulence (267). Blastocystis infection is commonly seen in children from various geographical settings, and accumulating epidemiological and case studies suggest that Blastocystis infection causes gastrointestinal disease in this cohort (13,16,35,59,85,145,149,167,221). Collectively, there is an increasing body of evidence suggesting that Blastocystis is pathogenic or is an opportunistic pathogen, with immunocompromised populations being more susceptible to infection and its associated symptoms.…”

Section: Epidemiology and Prevalencementioning

confidence: 76%

New Insights on Classification, Identification, and Clinical Relevance of Blastocystis spp

Tan¹

2008

Clin Microbiol Rev

594

715

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SUMMARY Blastocystis is an unusual enteric protozoan parasite of humans and many animals. It has a worldwide distribution and is often the most commonly isolated organism in parasitological surveys. The parasite has been described since the early 1900s, but only in the last decade or so have there been significant advances in our understanding of Blastocystis biology. However, the pleomorphic nature of the parasite and the lack of standardization in techniques have led to confusion and, in some cases, misinterpretation of data. This has hindered laboratory diagnosis and efforts to understand its mode of reproduction, life cycle, prevalence, and pathogenesis. Accumulating epidemiological, in vivo, and in vitro data strongly suggest that Blastocystis is a pathogen. Many genotypes exist in nature, and recent observations indicate that humans are, in reality, hosts to numerous zoonotic genotypes. Such genetic diversity has led to a suggestion that previously conflicting observations on the pathogenesis of Blastocystis are due to pathogenic and nonpathogenic genotypes. Recent epidemiological, animal infection, and in vitro host-Blastocystis interaction studies suggest that this may indeed be the case. This review focuses on such recent advances and also provides updates on laboratory and clinical aspects of Blastocystis spp.

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Section: Epidemiology and Prevalencementioning

confidence: 76%

New Insights on Classification, Identification, and Clinical Relevance of Blastocystis spp

Tan¹

2008

Clin Microbiol Rev

594

715

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“…Devera et al [12] have evaluated the prevalence of Blastocystis hominis (18.93% ± 5.93%) and its clinical relevance in 162 preschool children living in Bolivar city, Venezuela. In the half of the studied children this protozoan was the only parasite.…”

Section: Resultsmentioning

confidence: 99%

Parasitic Prevalence in a Suburban School of Famaillá, Tucumán, Argentina

et al. 2012

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Prevalence of intestinal parasites was investigated in rural primary school children in Famaillá city, Tucumán province, Argentina. Stool specimens from 149 school children were collected. The prevalence rate of intestinal parasite infections was 86.6%. No significant differences were observed in the distribution by age or by sex. Blastocystis hominis was the most commonly found protozoan parasite (54.4%), followed by Entamoeba coli (35.6%), Giardia lamblia (24.8%), and others (16.7%). Enterobius vermicularis was the most prevalent intestinal helminth (27.5%), followed by Ascaris lumbricoides (20.8%), Trichuris trichiura (12.8%), and others (5.4%). Most of the patients had polyparasitism (62.4%), and protozoan infections prevailed over helminthic infections. These results show high rates of parasitism in the school children of Famaillá, which would be associated with socioeconomic factors and poor environmental sanitation conditions in this area.

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“…Blastocystis spp. é reconhecido como um dos parasitas intestinais mais prevalentes em crianças, em diversas regiões no mundo (Devera et al 1998, El Safadi 2014. Os mesmos autores destacam que B. hominis foi o parasita mais frequentemente encontrado em crianças na pré-escola em Ciudad Bolivar, na Venezuela, superando a Entamoeba coli, um protozoário comensal de alta frequência naquele país, assim como Giardia lamblia e os geohelmintos Ascaris lumbricoides e Trichuris trichiura.…”

Section: Discussionunclassified

Prevalência de Blastocystis spp. provenientes de amostras fecais de moradores de dois biomas mato-grossenses

Zorzan

Moreira

Silva

et al. 2020

G. Sci.

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Este trabalho teve por objetivo avaliar o percentual de positividade de Blastocystis spp. na população de quatro municípios de dois biomas do estado de Mato Grosso. As coletas de fezes foram realizadas nos municípios de Barão de Melgaço, Cáceres, Nova Xavantina e Cuiabá, nos biomas Pantanal e Cerrado. Foram coletadas 708 amostras fecais, o grupo amostral foi dividido em duas categorias sendo 350 provenientes do grupo I, o qual compreendia uma população composta por integrantes com idade entre 5 a 15 anos e 358 provenientes do grupo II, composto por integrantes com idade de 16 anos acima, destas 17,93% estavam positivas para Blastocystis spp, sendo que 11,15% eram amostras de pertencentes ao primeiro grupo e 6,77% referentes ao segundo grupo. Barão de Melgaço foi o município que apresentou a maior positividade (25,5%), e Cáceres a menor (7%). O bioma Cerrado apresentou um percentual maior de amostras positivas na população geral (21,10%) em relação ao Pantanal (15,5%). Houve diferença significativa para o percentual de positividade com relação à faixa etária, não havendo diferença entre os indivíduos por sexo ou por biomas. Este trabalho possibilitou um maior conhecimento sobre a realidade mato-grossense quanto à infecção por Blastocystis spp.

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Blastocistosis en pre-escolares de Ciudad Bolívar, Venezuela

Cited by 7 publications

References 19 publications

New Insights on Classification, Identification, and Clinical Relevance of Blastocystis spp

New Insights on Classification, Identification, and Clinical Relevance of Blastocystis spp

Parasitic Prevalence in a Suburban School of Famaillá, Tucumán, Argentina

Prevalência de Blastocystis spp. provenientes de amostras fecais de moradores de dois biomas mato-grossenses

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