Combination of medicinal herbs KIOM-79 reduces advanced glycation end product accumulation and the expression of inflammatory factors in the aorta of zucker diabetic fatty rats

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Abstract

Previous studies have reported that KIOM-79 shows a strong inhibitory effect on AGE formation and inhibited a proinflammatory state in a murine macrophage cell line. In the present study, we investigated the effect of KIOM-79 on AGE accumulation and vascular inflammation in the aorta of Zucker diabetic fatty (ZDF) rats, a commonly used model of type 2 diabetes. Seven-week-old male ZDF rats were treated with KIOM-79 (50mg/kg) once a day orally for 13 weeks. We examined the dissected aortas for AGE accumulation, expression of the receptor for AGEs (RAGE), and the expression of proinflammatory factors, including monocyte chemoattractant protein-1 (MCP-1), vascular endothelial growth factor (VEGF), and vascular adhesion molecule-1 (VCAM-1). Nuclear factor-kappaB (NF-κB) and inducible nitric oxide synthase (iNOS) were also measured by Southwestern histochemistry, electrophoretic mobility shift assay (EMSA), and immunohistochemistry, respectively. KIOM-79 markedly reduced the accumulation of AGEs and the expression of RAGE in the aorta. We also found that KIOM-79 attenuated the expression of inflammatory factors including NF-κB, MCP-1, VEGF, VCAM-1, and iNOS in the aortas of ZDF rats. These data suggest that KIOM-79 may prevent or retard the development of inflammation in diabetic vascular disease. Copyright © 2011 Eunjin Sohn et al.

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Sohn, E., Kim, J., Jeong, I. H., Kim, C. S., Kim, Y. S., & Kim, J. S. (2011). Combination of medicinal herbs KIOM-79 reduces advanced glycation end product accumulation and the expression of inflammatory factors in the aorta of zucker diabetic fatty rats. Evidence-Based Complementary and Alternative Medicine, 2011. https://doi.org/10.1155/2011/784136

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