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[Effects of tea polyphenol on blood lipid and antioxidation in vivo in aged rats]
Abstract
Objective:
To study the ability of tea polyphenol to lowering blood lipid and antioxidation in the aged rats.
Methods:
The SD rats were divided into three groups, i.e., control group and two trial groups fed with 1% and 2% tea polyphenol for six weeks, respectively.
Results:
Tea polyphenol could reduce serum level of lipid peroxide and increase the ratio of high-density lipoprotein cholesterol (HDL-C) to total cholesterol (TC), and significantly lower serum level of lipid peroxide in rats. Activities of superoxide dismutase in red blood cells of rats fed with 2% tea polyphenol were significantly higher than those in control ones.
Conclusion:
Tea polyphenol can enhance antioxidation in vivo in the aged rats.