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Depression: 21st Century Solutions + The Dark Side of Wheat

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Abstract Title:

Differential intestinal anti-inflammatory effects of Lactobacillus fermentum and Lactobacillus salivarius in DSS mouse colitis: impact on microRNAs expression and microbiota composition.

Abstract Source:

Mol Nutr Food Res. 2017 Jul 28. Epub 2017 Jul 28. PMID: 28752563

Abstract Author(s):

Alba Rodríguez-Nogales, Francesca Algieri, Jose Garrido-Mesa, Teresa Vezza, M Pilar Utrilla, Natalia Chueca, Federico Garcia, Mónica Olivares, M Elena Rodríguez-Cabezas, Julio Gálvez

Article Affiliation:

Alba Rodríguez-Nogales

Abstract:

SCOPE: To compare the intestinal anti-inflammatory effects of two probiotics Lactobacillus fermentum and Lactobacillus salivarius in mouse colitis, focusing on their impact on selected miRNAs and microbiota composition.

METHODS AND RESULTS: Male C57BL/6J mice were randomly assigned to four groups (n = 10): non-colitic, DSS colitic and two colitic groups treated with probiotics (5× 10(8) CFU/mouse/day). Both probiotics ameliorated macroscopic colonic damage. They improved the colonic expression of markers involved in the immune response, and the expression of miR-155 and miR-223. L. fermentum also restored miR-150 and miR-143 expression, also linked to the preservation of the intestinal barrier function. Besides, these beneficial effects were associated with the amelioration of the microbiota dysbiosis and a recovery of the SCFAs- and lactic acid-producing bacterial populations, although only L. fermentum improved Chao richness, Pielou evenness and Shannon diversity.Moreover, L. fermentum also restored the Treg cell population in MLNs and the Th1/Th2 cytokine balance.

CONCLUSION: Both probiotics exerted intestinal anti-inflammatory effects in DSS-mouse colitis, maybe due to their ability to restore the intestinal microbiota homeostasis and modulate the immune response. L. fermentum showed a greater beneficial effect compared to L. salivarius, which makes it more interesting for future studies.

Study Type : Animal Study

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Sayer Ji
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Depression: 21st Century Solutions + The Dark Side of Wheat

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