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Updated: Apr 24, 2026

A Model of Chronic Nutrient Infusion in the Rat
Published on: August 14, 2013
Dietary coconut kernel protein beneficially modulates NFκB and RAGE expression in streptozotocin induced diabetes in
G Salil1, R Nithya2, K G Nevin3
1Department of Biochemistry, University of Kerala, Kariavattom Campus, Thiruvananthapuram, Kerala 695 581 India ; Department of Biochemistry, Mar Baselios Dental College, Thankalam, Kothamangalam, Eranakulam, Kerala 686 691 India.
Abstract:
Previous studies showed that arginine rich coconut kernel protein (CKP) maintains glucose homeostasis in experimental diabetic rats. But the mechanism of this effect was not clear. This study investigated the effect of CKP on the expression of liver receptor for advance glycated end products (RAGE), inducible nitric oxide synthase (iNOS) and NFkB. Diabetes was induced by injecting a single dose of streptozotocin (75 mg/kg body weight) intraperitoneally. After inducing diabetes, CKP was administered to rats orally for 45 days. After the experimental period, serum glucose, insulin, liver glycogen, glucose metabolizing enzyme activities and the expression of liver RAGE, iNOS and NFkB was evaluated. The results showed that CKP beneficially modulated the levels of glucose and insulin as well as the metabolizing enzyme activities. Expression of RAGE and NFkB was found to be over expressed in diabetic rats but was found to be down regulated in CKP fed diabetic rats. iNOS expression was down regulated in diabetic rats, which was expressed normally in CKP fed diabetic rats. These results clearly demonstrated that anti diabetic activity of CKP is mediated through NFkB pathway.
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