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- W310081178 abstract "espanolEsta investigacion fue realizada para incrementar el conocimiento actual de los datos morfologicos y morfometricos de los ganchos rostelares de la forma larvaria (metacestode) de Echinococcus granulosus. Los protoescolices fueron aislados de higados y pulmones de ovinos y vacunos infectados naturalmente obtenidos de los mataderos en los departamentos del Peru (Arequipa, Cuzco, Puno, Huancavelica y Junin). Se utilizo la microscopia de campo claro, la microscopia confocal, la microscopia electronica de barrido y contraste de interferencia diferencial. La morfometria se realizo mediante el analisis de imagen computacional. La aplicacion de estos ensayos indican que los ganchos grandes con frecuencia presentaban finos protectores y de superficie irregular entre el protector y el mango. Los datos tambien indicaron que los ganchos pequenos presentaron proctectores redondeados y robustos. La hoja no mostro ningun aspecto relevante. Se observo que no existe distincion morfologica clara entre los ganchos grandes y pequenos. Fue evidente diferencias fenotipicas en la forma y el tamano de los ganchos. En conclusion, la comparacion de la morfologia de los ganchos rostelares grandes y pequenos mostro ciertas diferencias. Nuestro estudio demostro la utilidad de la combinacion de herramientas tradicionales y nuevas para los estudios morfologicos y ayudar a resolver las cuestiones pendientes con respecto a la morfologia de los ganchos rostelares. EnglishThis study was undertaken to expand the current knowledge of the morphology and morphometry of rostellar hooks of protoscoleces from the metacestode E. granulosus. Protoscoleces were isolated from livers and lungs of naturally infected ovines and bovines obtained from abattoirs in Peruvian provinces (Arequipa, Cuzco, Puno, Huancavelica and Junin). Brightfield microscopy, confocal laser scanning microscopy, differential interference contrast and variable pressure scanning electron microscopy were used. Morphometry was made using computer image analysis. The application of these assay indicated that the large hooks frequently had thin guards and an irregular surface between the guard and handle. Data also showed that the small hooks presented rounded and stout guards. The blade did not show any relevant feature. No clear morphological distinction was observed between large and small hooks. Phenotypical polymorphism was evident in the shape and size of hooks. In conclusion, the current data show that large and small rostellar hooks have morphological polymorphism. Because the application of this knowledge for taxonomic study is limited, for this end morphometry techniques are required. Our study demonstrated the usefulness of combining conventional and new morphological tools to help to solve unresolved matters with regards to rostellar hooks features." @default.
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- W310081178 date "2009-01-01" @default.
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- W310081178 title "Morphological and morphometric studies on protoscoleces rostellar hooks of echinococcus granulosus from Peru visualized by several microscopic techniques" @default.
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