Saccharomyces Boulardii Administration Changes Gut Microbiota And Reduces Hepatic Steatosis, Low-Grade Inflammation, And Fat Mass In Obese And Type 2 Diabetic Db/Db Mice.
The use of Saccharomyces Boulardii as a therapeutic intervention in people with alterations in their microbiota and local immune responses has been explored for over 50 years. The multiple points of action this simple yeast initiates in terms of mucosal barrier function and immune competence has made it an attractive and safe product for many clinicians. This study published in Jun 2014 in the American Society for Microbiology explores its role in a mouse model, but opens some interesting prospects for human health.
Growing evidence shows that gut microbes are key factors involved in the regulation of energy homeostasis, metabolic inflammation, lipid metabolism, and glucose metabolism. Therefore, gut microbiota modulations caused by selectively fermented oligosaccharides or probiotic bacteria constitute an interesting target in the physiopathology of obesity.
However, to date, no probiotic yeast has been investigated in this context. Therefore, our study aimed to evaluate the impact of the most-studied probiotic yeast (i.e., Saccharomyces boulardii Biocodex) on obesity and associated metabolic features, such as fat mass development, hepatic steatosis, and low-grade inflammation, in obese mice. S.boulardii was administered daily by oral gavage to leptin-resistant obese and type 2 diabetic mice (db/db) for 4 weeks. We found that S. boulardii-treated mice exhibited reduced body weight, fat mass, hepatic steatosis, and inflammatory tone.
Interestingly, these effects of S. boulardii on host metabolism were associated with local effects in the intestine. S. boulardii increased cecum weight and cecum tissue weight but also induced dramatic changes in the gut microbial composition at the phylum, family, and genus levels. These gut microbiota changes in response to S. boulardii may also be correlated with the host metabolism response.
In conclusion, this study demonstrates for the first time that S. boulardii may act as a beneficial probiotic treatment in the context of obesity and type 2 diabetes.
 Everard A, Matamoros S, Geurts L, Delzenne NM, Cani PD. Saccharomyces boulardii administration changes gut microbiota and reduces hepatic steatosis, low-grade inflammation, and fat mass in obese and type 2 diabetic db/db mice. MBio. 2014 Jun 10;5(3):e01011-14. View Full Paper
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