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Abstract Title:

Salvianolic Acid B Inhibits High-Fat Diet-Induced Inflammation by Activating the Nrf2 Pathway.

Abstract Source:

J Food Sci. 2017 Aug ;82(8):1953-1960. Epub 2017 Jul 28. PMID: 28753232

Abstract Author(s):

Bin Wang, Jin Sun, Yonghui Shi, Guowei Le

Article Affiliation:

Bin Wang

Abstract:

Salvianolic acid B (Sal B) is a major water-soluble bioactive component of Salvia miltiorrhiza, which is a traditional Chinese medicine. We investigated the ways in which Sal B affects high-fat diet (HFD)-induced immunological function disorder remission using a C57BL/6 mouse model. We gave groups of C57BL/6 mice a normal diet (Control), a normal diet supplemented with Sal B (Control + Sal B), a high-fat diet (HF), and a high-fat diet supplemented with Sal B (HF + Sal B) for 10 wk. Sal B supplementation decreased the body weight and plasma lipids, increased the fecal excretion of lipids, prevented the accumulation of chronic oxidative stress, and reversed the disproportionality of CD3CD4and CD3CD8T lymphocytes compared to HFD. We found an increase in IL-6 and TNF-α, while IL-10 decreased in plasma after the HFD and Sal B reversed the deregulation of the Thl/Th2 ratio. In addition, HFD-induced inflammation was stopped by Sal B through the downregulation of nuclear factor-κB (NF-κB), cyclooxygenase-2 (COX-2), and inducible NO synthesis (iNOS), and the upregulation of nuclear factor-erythroid 2-related factor 2 (Nrf2)-regulated genes. These findings demonstrated that Sal B could effectively attenuate inflammation by activating the Nrf2-mediated antioxidant defense system.

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