Journal
BIOMEDICINE & PHARMACOTHERAPY
Volume 99, Issue -, Pages 537-542Publisher
ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
DOI: 10.1016/j.biopha.2018.01.079
Keywords
Schisandra chinensis; Polysaccharide; Alcoholic liver disease; CYP2E1
Funding
- Jilin Pharmaceutical Industry Promotion Plan [20150309004YY, 20170309006YY]
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Aim: Schisandra chinensis is a well-known traditional Chinese medicine used mainly as a recipe for hepatoprotection. Modern researches have revealed that the hepatoprotection is related to its lignans and crude polysaccharide. In this study, we examined the effect and mechanism of Schisandra chinensis acidic polysaccharide (SCAP) on the liver injury induced by ethanol. Main methods: SCAP was extracted with water extraction and ethanol precipitation. Liver injury models of both mice and HepG2 cells were produced by ethanol. The liver index, alanine aminotransferase (ALT) and aspartate aminotransferase (AST) levels in serum of the mice and cell culture supernatant were examined; HE staining was performed for observing pathological changes of liver. The malondialdehyde (MDA) level and superoxide dismutase (SOD) activities in serum, liver tissue and HepG2 cells, and triglyceride (TG) content in liver tissue were tested. Western blot was conducted to determine cytochrome P450 2E1 (CYP2E1) expression in liver tissue of mice and HepG2 cells. Key findings: SCAP significantly reduced serial AST and ALT levels in the injuried liver and HepG2 cells induced by ethanol and also decreased TG level in the liver tissue. SCAP also obviously improved the hepatopathological changes and decreased MDA level as well as increased SOD activities in the serum, liver tissue and HepG2 cells induced by ethanol. Furthermore, Western blot analysis indicated that SCAP significantly inhibited the upregulation of CYP2E1 protein.
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