Black and green tea improves lipid profile and lipid peroxidation parameters in Wistar rats fed a high-cholesterol diet.
In the present study, the efficacy of black tea (BT) and green tea (GT) was studied in relation to serum and hepatic oxidative abnormalities in hypercholesterolemic rats. Hypercholesterolemia was induced in male Wistar rats (8 week old) by feeding them with a high-cholesterol diet (HCD) for 35 days. The experimental rats were given BT and GT as a supplement (7 g/L) via drinking water. Increased hepatic and serum lipid profile along with abnormalities in oxidative marker, with a concomitant increase in the body weight, food intake, and food efficiency, were seen in hypercholesterolemic rats. Following the supplementation of BT and GT to rats fed with HCD, significantly lower levels of serum and hepatic cholesterol, triglycerides, serum low-density lipoprotein cholesterol, and increased high-density lipoprotein cholesterol levels were observed, when compared with hypercholesterolemic group. Further, significantly lower levels in the serum and hepatic lipid peroxidation, body weight gain, and food efficiency were observed in BT and GT group when compared with control and HCD fed group. However, no such significant changes were observed in the food intake upon supplementation with BT and GT. These results suggest that supplementation of BT and GT may protect against the serum and hepatic abnormalities in hypercholesterolemic rats.
Department of Food and Nutrition Science, College of Food and Agricultural Sciences, King Saud University, P. O. Box 2460, Riyadh 11451, Saudi Arabia. alshatwi@ksu.edu.sa
Ali A
AA
Alshatwi
Manal A
MA
Al Obaaid
Sahar A
SA
Al Sedairy
Elango
E
Ramesh
Kai Y
KY
Lei
D000818:Animals; D000975:Antioxidants / Q000494:pharmacology*; D001835:Body Weight / Q000187:drug effects; D002784:Cholesterol / Q000378:metabolism; D002791:Cholesterol, Dietary / Q000009:adverse effects*; D008078:Cholesterol, LDL / Q000378:metabolism; D019587:Dietary Supplements; D006937:Hypercholesterolemia / Q000188:drug therapy / Q000209:etiology* / Q000378:metabolism / Q000517:prevention & control*; D015227:Lipid Peroxidation / Q000187:drug effects*; D008099:Liver / Q000187:drug effects / Q000378:metabolism; D008297:Male; D008315:Malondialdehyde / Q000097:blood; D051381:Rats; D017208:Rats, Wistar; D044967:Serum / Q000187:drug effects / Q000378:metabolism; D013662:Tea; D014280:Triglycerides / Q000378:metabolism
D000975:Antioxidants; D002791:Cholesterol, Dietary; D008078:Cholesterol, LDL; D013662:Tea; D014280:Triglycerides; D008315:Malondialdehyde; D002784:Cholesterol