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  • Title: Attenuation of high-glucose-induced inflammatory response by a novel curcumin derivative B06 contributes to its protection from diabetic pathogenic changes in rat kidney and heart.
    Author: Pan Y, Zhu G, Wang Y, Cai L, Cai Y, Hu J, Li Y, Yan Y, Wang Z, Li X, Wei T, Liang G.
    Journal: J Nutr Biochem; 2013 Jan; 24(1):146-55. PubMed ID: 22819547.
    Abstract:
    There is increasing evidence indicating that inflammatory processes are involved in the development and progression of diabetic complications. However, effective anti-inflammatory treatments for patients who have diabetic complications have yet been practically identified. Curcumin is a main component of Curcuma longa with numerous pharmacological activities. Previously, we synthesized a novel curcumin analogue (B06) that exhibited an improved pharmacokinetic and enhanced anti-inflammatory activity compared to curcumin. The present study aimed to test the hypothesis that B06 may reduce high-glucose-induced inflammation and inflammation-mediated diabetic complications. In vitro, pretreatment with B06 at a concentration of 5 μM significantly reduced the high-glucose-induced overexpression of inflammatory cytokines in macrophages. This anti-inflammatory activity of B06 is associated with its inhibition of c-Jun N-terminal kinase/nuclear factor κB activation. In vivo, despite that B06 administration at 0.2 mg · kg(-1) · d(-1) for 6 weeks did not affect the blood glucose profile of diabetic rats, the B06-treated animals displayed significant decreases in inflammatory mediators in the serum, kidney, and heart and renal macrophage infiltration. This was accompanied with an attenuation of diabetes-induced structural and functional abnormalities in the kidney and heart. Taken together, these data suggest that the novel derivative B06 might be a potential therapeutic agent for diabetic complications via an anti-inflammatory mechanism and support the potential application in diabetic complication therapy via anti-inflammatory strategy.
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