Possible protective effect of kolaviron on CCl4-induced erythrocyte damage in rats.
The possible protective effect of kolaviron on rat erythrocytes following simultaneous administration of kolaviron (100 mg/kg of body weight/day) with carbon tetrachloride CCl4 (1.195 g/kg of body weight/day) by separate intraperitoneal injections was investigated. Kolaviron, a biflavonoid fraction of the defatted alcoholic extract of Garcinia kola seed, inhibits the accumulation of lipid peroxidation products in erythrocytes. A significant reduction (p < 0.05) by about 34%, of lipid peroxidation products was observed in erythrocytes of rats treated simultaneously with CCl4 and kolaviron when compared to CCl4-treated rats. Similarly, the significant increase (p < 0.05) in membrane cholesterol observed in CCl4-treated rats was significantly decreased (p < 0.05) in rats treated simultaneously with CCl4 and kolaviron. Therefore, there was no significant difference (p < 0.05) in cholesterol phospholipid ratio (C/P) of rats treated simultaneously with CCl4 and kolaviron, and the controls. Thus, kolaviron normalizes the CCl4-induced change in erythrocyte membrane composition. In addition, kolaviron antagonizes the effect of CCl4 on the activity of the membrane bound enzyme, Ca2+-ATPase. These results suggest that kolaviron protects erythrocyte membranes from free radical attack, on both lipids and proteins.
Adaramoye
O A
OA
Department of Biochemistry, College of Medicine, University of Ibadan, Nigeria.
Akinloye
O
O
D000818:Animals; D000252:Calcium-Transporting ATPases / Q000187:drug effects / Q000378:metabolism; D002252:Carbon Tetrachloride Poisoning / Q000097:blood*; D004910:Erythrocyte Membrane / Q000187:drug effects; D004912:Erythrocytes / Q000187:drug effects*; D005419:Flavonoids / Q000494:pharmacology*; D015227:Lipid Peroxidation / Q000187:drug effects; D008297:Male; D051381:Rats; D017208:Rats, Wistar
D005419:Flavonoids; D000252:Calcium-Transporting ATPases; C045492:kolaviron