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J Agric Food Chem. 2010 Jan 27;58(2):850-9.
The hypolipidemic effect of Hibiscus sabdariffa polyphenols via inhibiting lipogenesis and promoting hepatic lipid clearance.
Yang MY, Peng CH, Chan KC, Yang YS, Huang CN, Wang CJ.
Institute of Biochemistry and Biotechnology, Chung-Shan Medical University, Taichung 402, Taiwan.
Hibiscus sabdariffa extract (HSE) was shown to lower the plasma lipid level and reduce the liver damage. In the present study, we investigated if Hibiscus sabdariffa polyphenols (HPE) exerted a hypolipidemic effect and its putative mechanism on liver. HPE exhibited more potency to decrease plasma cholesterol and LDL cholesterol than the crude extract HSE, and increased HDL cholesterol dose-dependently. It decreased the lipid content of hepatocyte through the activation of AMPK and reduction of SREBP-1, thus inhibiting the expression of fatty acid synthase and HMG-CoA reductase. LDLR and LDL binding of HepG2 cells were enhanced when treated with HPE. In conclusion, HPE is worthy of being further investigated and could be developed as an adjunctive for hepatic lipid control and hypolipidemic therapy.
PMID:20017484 [PubMed - indexed for MEDLINE