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(Hypertension. 2008;51:534.)
© 2008 American Heart Association, Inc.

Original Articles Part 2

Hyperresistinemia Is Associated With Coexistence of Hypertension and Type 2 Diabetes

Yasunori Takata; Haruhiko Osawa; Mie Kurata; Maki Kurokawa; Junko Yamauchi; Masaaki Ochi; Wataru Nishida; Takafumi Okura; Jitsuo Higaki; Hideichi Makino

From the Departments of Molecular and Genetic Medicine (Y.T., H.O., M.Kurata, J.Y., M.O., W.N., H.M.) and Integrated Medicine and Infomatics (M.Kurokawa, T.O., J.H.), Ehime University Graduate School of Medicine, Ehime, Japan.

Correspondence to Yasunori Takata, Department of Molecular and Genetic Medicine, Ehime University Graduate School of Medicine, Toon, Ehime 791-0295, Japan. E-mail ytakata{at}m.ehime-u.ac.jp

Numerous studies have demonstrated that high blood pressure substantially increases the risk of microvascular and macrovascular complications in patients with type 2 diabetes mellitus (T2DM). Currently, we found that serum resistin, an adipocyte- and monocyte-derived cytokine, was positively correlated with several components of the metabolic syndrome, including hypertension in T2DM. To investigate the association of resistin with an etiologic difference among subjects with hypertension with T2DM, hypertension without T2DM, and normotensive T2DM, we analyzed 210 subjects, including 91 with hypertension with T2DM, 55 with hypertension without T2DM, and 64 with normotensive T2DM. Serum resistin level was higher in subjects with hypertension with T2DM, followed by subjects with normotensive T2DM and hypertension without T2DM, irrespective of antihypertensive treatment status (20.9±17.6 and 14.0±8.9 versus 11.2±7.6 ng/mL, respectively; P<0.01). Simple regression analysis revealed that resistin positively correlated with blood pressure (systolic blood pressure: r=0.29, P<0.01; diastolic blood pressure: r=0.21, P<0.05) and intima-media thickness (r=0.27; P<0.05) in patients with T2DM but not in subjects with hypertension without T2DM. Multiple regression analysis, adjusted for age, gender, body mass index, fasting glucose, high-density lipoprotein cholesterol, white blood cell counts, and glomerular filtration rate, further revealed that resistin was an independent factor for high blood pressure in patients with T2DM (P<0.05). In vitro gene expression analysis in human coronary endothelial cells revealed that resistin induced fatty acid binding protein, a key molecule of insulin resistance, diabetes, and atherosclerosis. These results suggest that hyperresistinemia would contribute to the pathogenesis of hypertension in patients with T2DM, significantly linked to vascular complications and cardiovascular events.

Key Words: resistin • hypertension • type 2 diabetes • atherosclerosis

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