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http://dx.doi.org/10.3746/jkfn.2003.32.2.244

Hepatic Oxygen Free Radical Metabolizing Enzyme Activities and Serum Lipid Profile in Rats Fed Diet Supplemented with Monascus Pigment  

유대식 (계명대학교 미생물학과)
김현희 (계명대학교 공중보건학과)
윤종국 (계명대학교 공중보건학과)
Publication Information
Journal of the Korean Society of Food Science and Nutrition / v.32, no.2, 2003 , pp. 244-249 More about this Journal
Abstract
To investigate the hepatic oxygen free radical metabolizing system and changes of serum cholesterol levels in rats fed a diet supplemented with Monascus pigment (MP), Sprague-Dawley rats weighing about 300 g have been fed a diet supplemented with 2% or 4% MP for a month. The rats fed 2% MP supplemented diet gained less body weight than the control rats and those fed 4% W supplemented diet. Those fed 2% or 4% MP supplemented diet had no remarkable changes in liver function on basis of liver weight/body weight, serum levels of xanthine oxidase, alanine amino transferase activity In rats fed 2% and 4% MP supplemented diet, hepatic cytochrome P45O dependent aniline hydroxylase activity significantly (p<0.05) declined about 32%, 37% respectively and showed no significant differences between rats fed 2% and 4% MP supplemented diet whereas those fed 2% MP supplemented diet showed about 29% increased hepatic xanthine oxidase activity. And hepatic glutathione S-transferase and glutathione peroxidase activites in rats fed 2% MP supplemented were more increased by about 17%, 28% respectively than the control rats. There were no significant differences both in between those fed 2% and 4% MP supplemented diet. Especially rats fed 2% or 4% MP supplemented diet showed a significant (p<0.05) increase in hepatic catalase activity by 41%, 25% compared with control rats and those fed 4% MP supplemented diet showed more decrease in tendency of catalase activity than those 2% MP supplemented diet. But hepatic superoxide dismutase activity and glutathione content were appeared to be similar value among three groups. On the other hand, rats fed 2% MP supplement diet showed 17% increased levels of serum HDL-choresterol and 26% decreased value of LDL-cholesterol and serum level of triglyceride. But no different value were appeared between those fed 2% and 4% MP supplemented diet. Especially in those fed 2% and 4% MP supplemented diet, artherogenic index were significantly (p<0.05) declined by 37%, 29% respectively compared with control. In conclusion, it is likely that rats fed a diet supplemented with a proper quantity of MP may have the potential of oxygen free radical detoxication and lowering of artherogenic index.
Keywords
Monascus pigment; activity of oxygen free radical metabolizing enzymes; serum lipid profile;
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