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Effects of telmisartan on adiponectin levels and body weight in hypertensive patients with glucose intolerance.

Makita S, Abiko A, Naganuma Y, Moriai Y, Nakamura M

Department of Internal Medicine II and Memorial Heart Center, Iwate Medical University School of Medicine, Morioka 0208505, Japan. makitas@seagreen.ocn.ne.jp

Few studies have analyzed intraclass differences in angiotensin II receptor blockers (ARBs) with respect to antidiabetic or metabolic effects. We designed a prospective randomized study to compare a peroxisome proliferator-activated receptor-gamma (PPARgamma)-activating ARB with a nonactivating ARB to delineate the effects on metabolic factors associated with cardiovascular disease. Subjects initially comprised 153 hypertensive patients (72 men, 81 women; mean age, 67.9 +/- 7.8 years) with diagnosed glucose intolerance on the glucose loading test. Patients were randomly assigned to receive 6-month administration of telmisartan 47.0 mg/d (TEL) or candesartan 8.4 mg/d (CAN), or to have no change in drug regimen (control group, CTL). Fasting plasma glucose level was significantly reduced in TEL (n = 46) compared with CTL (n = 47) (percentage of change from baseline, -1.7% vs +2.2%; P = .045). Percentage of increase in adiponectin was significantly larger in TEL than in CTL (+10.5% vs +2.2%, P = .025), but not significantly larger in CAN (n = 44) than in CTL (+4.9% vs +2.2%; P = .13). Percentage of decrease in body weight from baseline was significantly enhanced in TEL compared with CTL (-2.2% vs -0.8%, P = .023) and CAN (-2.2% vs -0.3%, P = .007). Telmisartan decreased body weight while increasing serum adiponectin levels in hypertensive patients with glucose intolerance. Candesartan did not achieve similar improvements in these patients. Among ARBs, telmisartan may have a larger impact on obesity-related diseases that can lead to cardiovascular disorders.

Published 22 September 2008 in Metabolism, 57(10): 1473-8.
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