Evaluación de antígeno leptospiral con suero hiperinmune humano y animal mediante microELISA y microalutinación.
Keywords:
Leptospirosis, antígenos, Cordón umbilicalAbstract
El ELISA ha demostrado alta sensibilidad para el diagnóstico de diversas enfermedades y patologías y también para el diagnóstico serológico de leptospirosis. Muchos investigadores han elaborado antígenos de distintas cepas leptospirales con propósitos diagnósticos, con resultados satisfactorios. Este trabajo tiene como objetivo evaluar un antígeno leptospiral elaborado con una cepa virulenta utilizando la técnica de microELISA comparándola con la microaglutinación que es la técnica de referencia de la OMS. Se estudiaron cuatro sueros hiperinmunes de pacientes con leptospirosis de los cuales se aislaron cuatro cepas, cuatro sueros de cordón umbical de la sección SUMA Hospital «Pepe Portilla», nueve sueros hiperinmunes de consejos y diecinueve sueros de trabajadores de la Facultad de Ciencias Médicas antes de vacunarse. Para la microaglutación se emplearon veinte serogrupos de leptospiras enfrentándoles a los sueros diluidos desde 1:50 hasta 1:25600 y para microELISA se diluyó desde 1:2 hasta 1:256. E n microELISA se empleó un policlonal de IgG, IgA e IgM marcado con peroxidasa de la firma SIGMA suministrado por el laboratorio de leptospirosis del IPK.
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