Niveles de IgA fecal en ratones inoculados con cepas atenuadas de Salmonella Typhimurium

  • Changanaquí, Christian
  • Luna E., Luis
  • Carhuaricra H., Dennis
  • Maturrano H., Lenin
  • Rosadio A., Raúl
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Publication date
June 2022
Publisher
Universidad Nacional Mayor de San Marcos, Vicerectorado de Investigacion
Language
Spanish; Castilian

Abstract

The present study aimed to evaluate the immunogenic activity of three life attenuated strains of Salmonella Typhimurium isolated from guinea pig, by evaluating the excretion of faecal IgA in mice. The study was carried out with 28 four-week-old female mice of the Balb/c strain, distributed into four groups (seven mice per group): strain 1, strain 2, strain 3 and control group (PBS). Each mouse was inoculated with 109 CFU/100 µl of the attenuated strains using an orogastric probe. Fresh stool samples were collected at days 1, 9, 15 and 21 post-immunizations. The quantification of faecal IgA was carried out by an indirect in-house ELISA test. The results indicate that the mice inoculated with strains 1 and 2 presented a higher immunogenic act...

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