Japan Society for the Promotion of Science:Grants-in-Aid for Scientific Research
Date (from‐to) : 2011 -2013
Author : KIKUCHI CHIGUSA; MATSUNAGA Tamihide; IMAEDA Kenro; SUZUKI Tadashi; KAJIKURI Jyunko
In this study, we examined the mechanism of vascular dysfunction mediated by postprandial hyperglycemia and the effects of new antidiabetes agent, dipeptidyl peptidase 4 (DPP-4) inhibitor using model animals and patient's data. Onset of atherosclerotic disease in diabetic patients was depend on circadian rhythm of blood glucose. Protein kinase C delta was decreased and reactive oxygen species via eNOS uncoupling was increased in the vascular wall of postprandial hyperglycemia model animals. Chronic administration of DPP-4 inhibitor suppresses postprandial hyperglycemia and decreased reactive oxygen species production.