alexa Effects of polyphenolic natural products on the lipid profiles of rats fed high fat diets.
Infectious Diseases

Infectious Diseases

Journal of AIDS & Clinical Research

Author(s): Yugarani T, Tan BK, Teh M, Das NP, Yugarani T, Tan BK, Teh M, Das NP

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Abstract Male Wistar rats were fed a high fat diet (HFD) containing 2.5\% cholesterol and 16\% lard supplemented with polyphenolic natural products namely quercetin, morin or tannic acid (100 mg/rat/day) for 4, 7 and 10 wk. Rats fed HFD without the supplements served as control. The effects of these compounds on blood lipid profiles, enzymes, liver fat and aorta of the rat were studied. In rats fed HFD containing tannic acid, plasma total cholesterol (TC), low density lipoprotein cholesterol (LDLC) and triglyceride (TG) were reduced by 33.3\%, 29.6\% and 65.1\%, respectively, at week 10. High density lipoprotein cholesterol (HDLC) concentration was not altered. Fat deposition was also decreased in the liver of these rats. Morin significantly reduced plasma TG (65.1\%) and liver fat only at week 7 while at week 10 it reduced plasma TC and LDLC by 30.9\% and 29.3\% respectively. The plasma HDLC concentration was increased by 47.3\% at week 4 but no effect was seen at weeks 7 and 10. In the rats fed HFD containing quercetin, plasma HDLC was increased by 28.6\% at week 7 but at week 10, plasma LDLC was increased by 21.2\%. Quercetin did not cause any significant changes on the plasma TC, TG and liver fat at weeks 4, 7 and 10. Plasma alanine aminotransferase, alkaline phosphatase and bilirubin in control and treated groups were not significantly different. However, hepatic lipase activity in rats fed tannic acid was significantly lower. Aortae of all groups of rats showed no abnormalities. The present report indicates that tannic acid and morin are effective in reducing plasma and liver lipids when supplemented with a high fat diet in rats.
This article was published in Lipids and referenced in Journal of AIDS & Clinical Research

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