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

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Abstract Title:

Salvianolic acid B inhibits myofibroblast transdifferentiation in experimental pulmonary fibrosis via the up-regulation of Nrf2.

Abstract Source:

Biochem Biophys Res Commun. 2018 01 1 ;495(1):325-331. Epub 2017 Nov 4. PMID: 29108993

Abstract Author(s):

Miao Liu, Hanying Xu, Ling Zhang, Cai Zhang, Liancheng Yang, Enlong Ma, Lianqing Liu, Yanchun Li

Article Affiliation:

Miao Liu

Abstract:

Salvianolic acid B (SalB) is one of the most bioactive components extracted from Salvia miltiorrhiza, and its antioxidant capacity corresponds with its protective effects against cell injury from oxidative stress. The aim of the present study was to evaluate the effect of SalB on experimental pulmonary fibrosis and its ability to ameliorate the oxidative/antioxidative imbalance during fibrosis pathogenesis. The anti-fibrotic activity of SalB was first confirmed in Transforming growth factorβ1(TGF-β1)-stimulated MRC-5 cells. The protection of SalB against oxidative stress during fibrogenesis in vitro was verified by detecting ROS production, the levels of glutathione (GSH) and malondialdehyde (MDA). The Western blot and PCR results indicated that SalB could up-regulate nuclear factor erythroid-derived 2-like 2 (Nrf2) at both the protein and mRNA levels and induce Nrf2 nuclear translocation in vitro, which may be the mechanism underlying the anti-fibrotic capacity of SalB. Furthermore, the anti-fibrotic and antioxidant capacities of SalB in vivo were confirmed in rats with BLM-induced pulmonary fibrosis. The immunohistochemistry results showed that Nrf2 was absent in fibroblastic foci (FF) areas, while the SalB treatment could increase the expression of Nrf2 in lung tissues, especially in FF areas.

Study Type : In Vitro Study

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

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