Acarbose, an alpha-glucosidase inhibitor, decreases aortic gene expression and serum levels of monocyte chemoattractant protein-1 in fructose-fed rats.
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| Abstract |
Insulin resistance is one of the determinants of post-prandial hyperglycaemia. Recently, acarbose, an alpha-glucosidase inhibitor that delays the absorption of carbohydrates from the small intestine, has been found to reduce the incidence of cardiovascular disease in patients with impaired glucose tolerance or diabetes. However, the molecular mechanism by which acarbose inhibits cardiovascular events remains unknown. In this study, we examined whether oral administration of acarbose could suppress expression of monocyte chemoattractant protein-1 (MCP-1) in fructose-fed rats, a widely used animal model of insulin resistance. Serum MCP-1 levels were elevated in fructose-fed rats after 4 weeks. Acarbose treatment for 4 weeks reduced the fructose-induced elevation of serum MCP-1 levels. Acarbose treatment for 8 weeks decreased MCP-1 mRNA levels in the aortae of fructose-fed rats. These results suggest that the cardioprotective effects of acarbose could be due, at least in part, to the suppression of MCP-1 expression.
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| Authors | K Nakamura, S Yamagishi, T Matsui, T Yoshida, T Imaizumi, T Makino, T Shimizu, H Inoue |
| Journal | The Journal of international medical research (J Int Med Res) 2006 Sep-Oct Vol. 34 Issue 5 Pg. 525-30 ISSN: 0300-0605 [Print] England |
| PMID | 17133782 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't) |
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