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Revista do Instituto de Medicina Tropical de São Paulo

On-line version ISSN 1678-9946

Abstract

AVILA, Luciana Farias da Costa de et al. PROTECTIVE EFFECT OF THE PROBIOTIC Saccharomyces boulardii IN Toxocara canis INFECTION IS NOT DUE TO DIRECT ACTION ON THE LARVAE. Rev. Inst. Med. trop. S. Paulo [online]. 2013, vol.55, n.5, pp.363-365. ISSN 1678-9946.  https://doi.org/10.1590/S0036-46652013000500012.

SUMMARY

In a previous study our group found that the probiotic Saccharomyces boulardii was capable of reducing the intensity of infection in mice with toxocariasis. In order to assess whether the mechanism involved would be a direct action of the probiotic on Toxocara canis larvae, this study was designed. Both probiotics were singly cultivated in plates containing RPMI 1640 medium and T. canis larvae. S. boulardii and B. cereus var. toyoi cultures presented 97.6% and 95.7% of larvae with positive motility, respectively, and absence of color by the dye trypan blue, not representing significant difference to the control group (p > 0.05). We conclude that none of the probiotics showed in vitro effects on T. canis larvae and that the interaction with the intestinal mucosa is necessary for the development of the protective effect of S. boulardii.

Keywords : Toxocariasis; Probiotics; Larvicidal action.

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