Role of naringin supplement in regulation of lipid and ethanol metabolism in rats.
The current study was performed to investigate the effect of naringin supplements on the alcohol, lipid, and antioxidant metabolism in ethanol-treated rats. Male Sprague-Dawley rats were randomly divided into six groups (n = 10) based on six dietary categories: ethanol and naringin-free, ethanol (50 g/L) plus low-naringin (0.05 g/L), ethanol plus high-naringin (0.125 g/L), and three corresponding pair-fed groups. The pair-fed control rats received an isocaloric diet containing dextrin-maltose instead of ethanol for 5 wks. Among the ethanol treated groups, the naringin supplements significantly lowered the plasma ethanol concentration with a simultaneous increase in the ADH and/or ALDH activities. However, among the ethanol-treated groups, naringin supplementation resulted in a significant decrease in the hepatic triglycerides and plasma and hepatic total cholesterol compared to that in the naringin-free group. Naringin supplementation significantly increased the HDL-cholesterol and HDL-C/total-C ratio, while lowering the AI value among the ethanol-treated groups. Hepatic lipid accumulation was also significantly reduced in the naringin-supplemented groups compared to the naringin-free group among the ethanol-treated groups, while no differences were found among the pair-fed groups. Among the ethanol-treated groups, the low-naringin supplementation resulted in a significant decrease in the levels of plasma and hepatic TBARS, whereas it resulted in higher SOD and GSH-Px activities and gluthathion levels in the liver. Accordingly, naringin would appear to contribute to alleviating the adverse effect of ethanol ingestion by enhancing the ethanol and lipid metabolism as well as the hepatic antioxidant defense system.
Seo
Hyun-Ju
HJ
Department of Food Science and Nutrition, Kyungpook National University, 1370 Sankyuk Dong Puk-ku, Daegu 702-701, South Korea.
Jeong
Kyu-Shik
KS
Lee
Mi-Kyung
MK
Park
Yong Bok
YB
Jung
Un Ju
UJ
Kim
Hye-Jin
HJ
Choi
Myung-Sook
MS
D000426:Alcohol Dehydrogenase / Q000378:metabolism; D000818:Animals; D002374:Catalase / Q000378:metabolism; D004032:Diet; D004305:Dose-Response Relationship, Drug; D000431:Ethanol / Q000008:administration & dosage* / Q000097:blood; D044950:Flavanones; D005419:Flavonoids / Q000008:administration & dosage*; D005526:Food, Formulated; D006321:Heart / Q000187:drug effects; D007668:Kidney / Q000187:drug effects; D008099:Liver / Q000187:drug effects* / Q000201:enzymology / Q000473:pathology; D008297:Male; D008930:Mitochondria, Liver / Q000187:drug effects / Q000201:enzymology; D009206:Myocardium / Q000473:pathology; D009929:Organ Size / Q000187:drug effects; D051381:Rats; D017207:Rats, Sprague-Dawley; D013482:Superoxide Dismutase / Q000378:metabolism; D017392:Thiobarbituric Acid Reactive Substances / Q000032:analysis
D044950:Flavanones; D005419:Flavonoids; D017392:Thiobarbituric Acid Reactive Substances; D000431:Ethanol; D000426:Alcohol Dehydrogenase; D002374:Catalase; D013482:Superoxide Dismutase; C005274:naringin