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Effects of miglitol in platelet-derived microparticle, adiponectin, and selectin level in patients with type 2 diabetes mellitus

Authors Nomura S, Omoto S, Yokoi T, Fujita S, Ozasa R, Eguchi N, Shouzu A

Published Date July 2011 Volume 2011:4 Pages 539—545

DOI http://dx.doi.org/10.2147/IJGM.S22115

Published 20 July 2011

Shosaku Nomura1, Seitaro Omoto2, Takashi Yokoi1, Shinya Fujita1, Ryotaro Ozasa1, Noritaka Eguchi3, Akira Shouzu3
1
First Department of Internal Medicine, Kansai Medical University, 2Division of Internal Medicine, Korigaoka Yukeikai Hospital, 3Division of Internal Medicine, Saiseikai Izuo Hospital, Osaka, Japan

Background: Platelet-derived microparticles (PDMP), selectins, and adiponectin play an important role in the development of atherosclerosis in diabetes. Miglitol has been shown to have a beneficial effect on postprandial hyperglycemia in diabetic patients. However, its influence on platelet activation markers (PDMP and soluble CD40 ligand [sCD40L]), selectins, and adiponectin in these patients is poorly understood.
Aim: We investigated the effect of miglitol on circulating levels of PDMP, sCD40L, selectins, and adiponectin in patients with type 2 diabetes.
Methods: Miglitol (150 mg/day) was administered for 4 months. Levels of PDMP, sCD40L, soluble P-selectin (sP-selectin), soluble E-selectin (sE-selectin), soluble L-selectin (sL-selectin), and adiponectin were measured by enzyme-linked immunosorbent assay at baseline, and after 1 and 4 months of treatment.
Results: The levels of PDMP, sCD40L, sP-selectin, sE-selectin, and sL-selectin were higher in diabetic patients than in hypertensive patients, while there were no significant differences between hypertensive and hyperlipidemic patients. Before miglitol treatment, the adiponectin level of diabetic patients was lower than that of hypertensive patients. Miglitol therapy significantly decreased the plasma PDMP and sCD40L levels relative to baseline. Miglitol also caused a significant decrease of sP-selectin, sE-selectin, and sL-selectin. On the other hand, miglitol therapy led to a significant increase in adiponectin after 4 months of administration compared with baseline. Furthermore, the reduction of platelet activation markers and selectins during miglitol therapy was significantly greater in the responder (adiponectin-improved) group than the nonresponder group of diabetic patients.
Conclusion: Miglitol has an adiponectin-dependent anti-atherothrombotic effect that may be beneficial for primary prevention of atherothrombosis in patients with type 2 diabetes.

Keywords: platelet activation markers, atherothrombosis, platelet-derived microparticles, PDMP

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