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Centro de Investigaciones Regionales Dr. Hideyo Noguchi, Universidad Autónoma de Yucatán

2010, Number 2

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Rev Biomed 2010; 21 (2)

The relationship between Blastocystis hominis and the nutritional state of schoolchildren in a community of the Sierra of Huayacocotla, Veracruz, Mexico

Martínez-Barbabosa I, Gutiérrez-Quiroz M, Ruiz-González L, Ruiz-Hernández AL, Gutiérrez-Cárdenas EM, Gaona E

Language: Spanish
References: 29
Page: 77-84
PDF size: 74.64 Kb.


ABSTRACT

Introduction. Blastocystis hominis is an emerging cosmopolitan protozoa intestinal parasite which causes diarrhoea in man.
Aim. To determine the prevalence of Blastocystis hominis and its relationship with the nutritional state of a sample of schoolchildren in the Sierra de Huayacotla, Veracruz, Mexico.
Materials and Methods. A coprological study of 100 schoolchildren between 6 and 14 from the Primary School in Teximalpa, Sierra de Huayacotla was carried out. Direct coproparasitoscopic analysis and the Faust method were used. Their nutritional state was analyzed using Body Mass Index (BMI) and the application of a questionnaire. The statistical analysis was carried out using χ2 and Fishers’ exact test.
Results. The prevalence of B. hominis was 80%. It should be noted that its presence in children with a severe degree of thinness was significantly higher (p‹ 0.05). Moreover, the association between Blastocystis hominis and E. histolytica was (p‹0.001). In children with acceptable thinness the association of B. hominis with E. nana showed (p‹0.02), of B. hominis with E. coli (p ‹0.02) and of B. hominis with I. büestchlii showed (p‹0.04). In children of normal weight the association of B. hominis and E. histolytica was p‹0.009. Symptoms were vague and non-specific.
Conclusions. It is clear that B. hominis affects BMI but its effect is synergic when associated with E. histolytica, E. nana, I. büestchlii and E. coli. The significant presence of protozoa transmitted by faeces is an indicator of the deficiencies in the health environment of the population. Thus, it is indispensable to pay greater attention to marginal communities in order to improve the development of their children.


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