Background: The microbiome is now known for its important role in whole-body homeostasis.
A dysbiosis of the normal microbiota is correlated with metabolic disorders. In this sense,
the search for compounds able to modulate the microbiome is needed. Resveratrol, a natural compound
found in grapes seems to be a promising candidate.
Objective: In this study, our motivation was to evaluate the effects of the association between
Resveratrol and Lactococcus lactis, a probiotic, on the composition of the gastrointestinal microbiota
and body weight of mice.
Methods: Twenty female mice were divided into 4 groups: (1) standard diet, (2) standard diet plus
Lactococcus lactis, (3) standard diet plus resveratrol, and (4) standard diet plus Lactococcus lactis
and resveratrol. At the end of the treatment period, samples of blood, mucus, stomach, and small
and large intestines were collected for analysis. Total levels of Immunoglobulin A and Immunoglobulin
E, Lac+ and Lac- bacteria and Lactobacillus were measured.
Results: The main results indicate that the association between resveratrol and probiotics was able
to decrease mice body weight, as compared to the other groups, in addition to decrease the number
of Lac- bacteria and increasing the number of Lac+ bacteria. The levels of secretory IgA were also
decreased, compared to the animals treated with only probiotics or resveratrol.
Conclusion: We observed potential synergism between Resveratrol and Lactococcus lactis mainly
in modulating the stomach and intestinal microbiota.