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1.
Invest. clín ; 51(4): 457-466, dic. 2010. tab
Article in Spanish | LILACS | ID: lil-630904

ABSTRACT

En el estado Sucre, el Río Manzanares se ve amenazado por actividades domésticas, agrícolas e industriales originadas por el hombre, convirtiéndose en factor de riesgo ambiental para sus habitantes. En este sentido se planteó evaluar la presencia de protozoarios en aguas superficiales de afluentes del Río Manzanares (Río Orinoco, Quebrada Seca, Río San Juan), municipio Montes, estado Sucre, Venezuela, así como también el análisis de muestras fecales de los habitantes de poblados aledaños. Se recolectaron muestras de aguas superficiales de los afluentes en estudio y fecales entre mayo 2006-abril 2007. Las muestras de aguas superficiales se procesaron con sedimentación por centrifugación, floculación y tinciones de Kinyoun y tricrómica; las muestras fecales se sometieron a examen directo con solución salina fisiológica y lugol, Ritchie modificado y las coloraciones antes mencionadas. Los protozoarios observados con mayor frecuencia en las aguas superficiales en los afluentes fueron: Amebas, Blastocystis sp., Endolimax sp., Chilomastix sp. y Giardia sp. Mientras que Blastocystis hominis, Endolimax nana y Entaomeba coli fueron los de mayor frecuencia observada en las muestras fecales. Los habitantes de Orinoco La Peña resultaron ser los más afectados por las infecciones parasitarias (77,60%), seguido de Río San Juan con 46,63%, y Quebrada Seca con 39,49%. La presencia de protozoarios patógenos y no patógenos en las aguas superficiales demuestra la contaminación fecal de los afluentes evaluados, por lo que representa un foco de infección permanente para los individuos que viven en las cercanías de estas aguas, esto se refleja por la observación de los mismos parásitos en ambas muestras.


In Sucre state, the Manzanares river is threatened by domestic, agricultural and industrial activities, becoming an environmental risk factor for its inhabitants. In this sense, the presence of protozoans in superficial waters of tributaries of the Manzanares river (Orinoco river, Quebrada Seca, San Juan river), Montes municipality, Sucre state, as well as the analysis of faecal samples from inhabitants of towns bordering these tributaries were evaluated. We collected faecal and water samples from may 2006 through april 2007. The superficial water samples were processed after centrifugation by the direct examination and floculation, using lugol, modified Kinyoun and trichromic colorations. Fecal samples where analyzed by direct examination with physiological saline solution and the modified Ritchie concentration method and using the other colorations techniques above mentioned. The most frequently observed protozoans in superficial waters in the three tributaries were: Amoebas, Blastocystis sp, Endolimax sp., Chilomastix sp. and Giardia sp. Whereas in faecal samples, Blastocystis hominis, Endolimax nana and Entaomeba coli had the greatest frequencies in the three communities. The inhabitants of Orinoco La Peña turned out to be most susceptible to these parasitic infections (77.60%), followed by San Juan River (46.63%) and Quebrada Seca (39.49%). The presence of pathogenic and nonpathogenic protozoans in superficial waters demonstrates the faecal contamination of the tributaries, representing a constant focus of infection for their inhabitants, inferred by the observation of the same species in both types of samples.


Subject(s)
Animals , Humans , Amoebida/isolation & purification , Feces/parasitology , Fresh Water/parasitology , Giardia/isolation & purification , Rural Population , Retortamonadidae/isolation & purification , Water Pollution , Balantidium/isolation & purification , Isospora/isolation & purification , Trichomonadida/isolation & purification , Tubulina/isolation & purification , Venezuela/epidemiology
2.
Acta cir. bras ; 20(supl.1): 262-265, 2005.
Article in Portuguese | LILACS | ID: lil-474157

ABSTRACT

PURPOSE: There are several ways to propagation of parasitary diseases and how there aren't many bibliographic work about this theme, it was realized a study near to the Natal-RN population, to verify the enteroparasites transmission through the paper money. METHODS: In the Laboratório Parasitologia Clínica was analysed 500 bills of several worths gotten in shops and, concomitantly it was examined samples of a water got from the washed hands of the people who held the money. The methods to realize the parasitologic exams were: Ritchie and Faust et al. RESULTS: It was observed the following parasites prevalent in 48 (9.6%) examined bills: Endolimax nana 31 (6.2%), Entamoeba coli 06 (1.2%), Entamoeba histolytica 01 (0.2%), Ascaris lumbricoides 10 (2.0%). In the water, it vas observed that 40 (40.0%) of them had the same kinds of parasites in their hands. CONCLUSIONS: Finally, it is postulated that the paper money is important to the enteroparasites transmission and it is suggested that new researches must be done in this area.


Subject(s)
Animals , Ascaris lumbricoides/isolation & purification , Intestinal Diseases, Parasitic/transmission , Protozoan Infections/transmission , Paper , Disease Reservoirs/parasitology , Tubulina/isolation & purification , Ascariasis/transmission , Dysentery, Amebic/transmission , Endolimax/isolation & purification , Entamoebiasis/transmission , Entamoeba/isolation & purification , Statistics, Nonparametric
3.
Rev. invest. clín ; 49(2): 123-8, mar.-abr. 1997. ilus
Article in Spanish | LILACS | ID: lil-219670

ABSTRACT

Mediante separación isoeléctrica y reisoelectroenfoque se obtuvieron las proteínas de citoesqueleto de Giardia intestinalis con características de giardinas y tubulinas, constituyentes principales del disco ventral. El peso molecular fue 30 a 45 kDa así como las de sus variantes determinadas por la diferencia de pH. Además de las mismas se obtuvieron predominantemente polipéptidos de peso molecular de 97 y 115 kDa. Por inmunocitoquímica se demostró que estas proteínas de peso molecular elevado se localizaron sobre la membrana del trofozoíto, y en menor proporción se observaron proteínas con pesos moleculares semejantes a los de giardinas y tubulinas


Subject(s)
Animals , Fluorescent Antibody Technique , Giardia lamblia/chemistry , Giardia lamblia/growth & development , Giardia lamblia/ultrastructure , Hydrogen-Ion Concentration , Immunoenzyme Techniques , Isoelectric Focusing , Molecular Weight , Cytoskeletal Proteins/isolation & purification , Membrane Proteins/isolation & purification , Protozoan Proteins/isolation & purification , Tubulina/isolation & purification
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