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Hypocholesterolemic effects of curcumin via up-regulation of cholesterol 7a-hydroxylase in rats fed a high fat diet.
MedLine Citation:
PMID:  20607063     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
There is an increasing interest in curcumin (Curcuma longa L.) as a cardiovascular disease (CVD) protective agent via decreased blood total cholesterol and low-density lipoprotein-cholesterol (LDL-cholesterol) level. The aim of this study was to investigate further the potential mechanism in the hypocholesterolemic effect of curcumin by measuring cholesterol 7a-hydroxylase (CYP7A1), a rate limiting enzyme in the biosynthesis of bile acid from cholesterol, at the mRNA level. Male Sprague-Dawley rats were fed a 45% high fat diet or same diet supplemented with curcumin (0.1% wt/wt) for 8 weeks. The curcumin diet significantly decreased serum triglyceride (TG) by 27%, total cholesterol (TC) by 33.8%, and LDL-cholesterol by 56%, respectively as compared to control group. The curcumin-supplemented diet also significantly lowered the atherogenic index (AI) by 48% as compared to control group. Hepatic TG level was significantly reduced by 41% in rats fed with curcumin-supplemented diet in comparison with control group (P < 0.05). Conversely, the curcumin diet significantly increased fecal TG and TC. The curcumin diet up-regulated hepatic CYP7A1 mRNA level by 2.16-fold, compared to control group p (P < 0.05). These findings suggested that the increases in the CYP7A1 gene expression may partially account for the hypocholesterolemic effect of curcumin.
Authors:
Minji Kim; Yangha Kim
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Publication Detail:
Type:  Journal Article     Date:  2010-06-28
Journal Detail:
Title:  Nutrition research and practice     Volume:  4     ISSN:  2005-6168     ISO Abbreviation:  Nutr Res Pract     Publication Date:  2010 Jun 
Date Detail:
Created Date:  2010-07-07     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101311052     Medline TA:  Nutr Res Pract     Country:  Korea (South)    
Other Details:
Languages:  eng     Pagination:  191-5     Citation Subset:  -    
Affiliation:
Department of Nutritional Science and Food Management, Ewha Womans University, 11-1 Daehyn-dong, Seodaemun-gu, Seoul 120-750, Korea.
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