Abstract

The anti-fat accumulative effects of bacteria-derived β-glucan in 3T3-L1 adipocyte differentiation was investigated. 3T3-L1 preadipocytes were treated with β-glucan at 50 and 100 μg/mL during adipogenesis. Oil Red O staining was used to study expressions of the adipogenic genes PPARγ, ACC, and aP2. Adipogenesis of 3T3-L1 cells treated with β-glucan at 50 and 100 μg/mL was significantly (p<0.05) inhibited by 32.8 and 39.7%, respectively, compared with controls. Expressions of the PPARγ gene from 3T3-L1 cells treated with β-glucan at 50 and 100 μg/mL were significantly (p<0.05) decreased by 13.6 and 46.1%, respectively, ACC gene expression by 18.3 and 36.0%, respectively, and aP2 gene expression by 36.8 and 56.7%, respectively, compared to adipocyte controls. Bacteria-derived β-glucan inhibits fat accumulation at the cellular level that is mediated via decreases in expressions of the PPARγ, ACC, and aP2 genes.

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