Lipid-lowering efficacy of hesperetin metabolites in high-cholesterol fed rats

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Title
Lipid-lowering efficacy of hesperetin metabolites in high-cholesterol fed rats
Author(s)
H K Kim; Tae Sook Jeong; M K Lee; Y B Park; M S Choi
Bibliographic Citation
Clinica Chimica Acta, vol. 327, no. 1, pp. 129-137
Publication Year
2003
Abstract
Background: Hesperetin is a naturally occurring flavonoid that has hypolipidemic properties. Methods: Male rats were fed a 1 g/100 g high-cholesterol diet for 5 weeks along with hesperetin (0.02%, 0.066 mmol/100 g diet) and hesperetin metabolites. The hesperetin metabolites, m-hydroxycinnamic acid (m-HC), 3,4-dihydroxyphenylpropionic acid (3,4-DHPP), and 3-methoxy-4-hydroxycinnamic acid (ferulic acid), were supplemented based on an equivalent amount of hesperetin. Results: The supplementation of hesperetin and its metabolites significantly lowered the plasma total cholesterol and triglyceride concentrations compared to the control group. The hepatic HMG-CoA reductase and acyl-CoA:cholesterol acyltransferase (ACAT) activities were significantly lower in the hesperetin and its metabolite supplemented groups than in the control group. The excretion of acidic sterol was significantly higher in the hesperetin, m-HC, 3,4-DHPP, and ferulic acid supplemented groups than in the control group. Conclusions: These results demonstrated that the hesperetin metabolites played as potent a role as hesperetin in plasma lipid-lowering activities in vivo, and further suggest that cholesterol biosynthesis and esterification were concomitantly reduced by hesperetin and its metabolites, as indicated by the decreased HMG-CoA reductase and ACAT activities.
Keyword
Acyl-CoA:cholesterol acyltransferaseCholesterol metabolismFlavonoidsHesperetin and its metabolitesHMG-CoA reductase
ISSN
0009-8981
Publisher
Elsevier
DOI
http://dx.doi.org/10.1016/S0009-8981(02)00344-3
Type
Article
Appears in Collections:
Division of Biomedical Research > Microbiome Convergence Research Center > 1. Journal Articles
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