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

Abstract Title:

Study on effects of extracts from Salvia Miltiorrhiza and Curcuma Longa in inhibiting phosphorylated extracellular signal regulated kinase expression in rat's hepatic stellate cells.

Abstract Source:

Chin J Integr Med. 2006 Sep;12(3):207-11. PMID: 17005083

Abstract Author(s):

Yang Cheng, Jian Ping, Cheng Liu, Ying-zi Tan, Gao-feng Chen

Article Affiliation:

Department of Hepatocirrhosis, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China. chengyang@smmail.com

Abstract:

OBJECTIVE: To study the effect of salvianolic acid B (SAB) and curcumin, the extracts of Salvia Miltiorrhiza and Curcuma Longa, on the proliferation and activation of hepatic stellate cell (HSC), and the extracellular signal regulated kinase (ERK) expression in it.

METHODS: Rat's HSC-T6 were cultured and treated by SAB or curcumin. The inhibitory effect on cell proliferation was determined by 3-(4, 5-dimthyl-2-2thiazoly)-2, 5-diphenyl-2H-tetrazolium bromide (MTT) colorimetry, and the expression levels of alpha smooth actin (alpha-SMA), collagen type I, and ERK were determined by Western blot.

RESULTS: SAB and curcumin inhibited the proliferation and activation of rat's HSC-T6 in dose-dependent fashion and significantly reduced the expression level of alpha-SMA (P<0.01). Curcumin significantly reduced the expression of collagen type I (P<0.05). Both SAB and curcumin showed insignificant effect on the ERK expression level, but they could significantly reduce the level of phosphorylated-ERK expression, showing significant difference as compared with that in the control group (P<0.01 and P<0.05 respectively).

CONCLUSION: SAB and curcumin could significantly inhibit the proliferation, activation of HSC, and the production of type I collagen in HSC, the mechanism may be associated with their inhibition on ERK phosphorylation.

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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