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Revista MVZ Córdoba
versión impresa ISSN 0122-0268
Resumen
PAZOS M, Alvaro y GUERRERO F, Milena. Lactobacillus probiotics may prevent Vibrio cholerae colonization in rabbits newborn. Rev.MVZ Cordoba [online]. 2013, vol.18, suppl.1, pp.3689-3698. ISSN 0122-0268.
Objective. To assess the capacity in vitro and in vivo of Lactobacillus acidophilus1 isolated in this study, capable of preventing diarrheal disease caused by Vibrio cholerae 01 OGAWA in rabbits newborn. Materials and methods. Lactobacillus acidophilus1 was isolated from faeces of healthy children and was selected from a group of lactic acid bacteria (LAB). The better starchy substrate for the growth of the LAB was previously standardized. Using the L. acidophilus1, there was carried out an in vitro and in vivo assay of antagonistic inhibition on the enteropathogen and it was evaluated the prevention of colonization by V. cholerae 01 Ogawa in rabbits newborn. Results. L. acidophilus1 present the better amylolytic capacity, p<0.5 in the ANDEVA. It was found that an inoculum with a cell density of 35x106 bacteria/ml in the lactic ferment is able to exert the greatest antagonistic effect in vitro over V. cholerae. The probiotic effect was demonstrated in vivo, since rabbits exposed to the pathogen without having received probiotic had a lower survival probability of 0.25 regarding the group of animals exposed with the pathogen and simultaneously fed with the probiotic whose probability of survival was of 0.95. Conclusions. L. acidophilus1 is considered a probiotic microorganism capable of surviving when passing through the gastrointestinal tract in an animal model and preventing intestinal colonization by V. cholerae 01 Ogawa in rabbits newborn.
Palabras clave : Lactobacillus acidophilus; probiotics; rabbits; Vibrio cholerae.