alexa Effect of eplerenone versus spironolactone on cortisol and hemoglobin A₁(c) levels in patients with chronic heart failure.
Medicine

Medicine

Anatomy & Physiology: Current Research

Author(s): Yamaji M, Tsutamoto T, Kawahara C, Nishiyama K, Yamamoto T,

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Abstract BACKGROUND: It has been reported that mineralocorticoid receptor antagonist improves the prognosis of chronic heart failure (CHF). Recently, hemoglobin A₁(c) (HbA₁(c)) levels have been reported to be an independent risk factor for mortality in CHF, suggesting the important role of insulin resistance in CHF. We compared the metabolic effect of a selective mineralocorticoid receptor blocker eplerenone with spironolactone in CHF patients. METHODS: One hundred seven stable outpatients with mild CHF, who were already receiving standard therapy for CHF, were randomized (1:2) to spironolactone (25 mg/d) or eplerenone (50 mg/d). Plasma levels of B-type natriuretic peptide, adiponectin, HbA₁(c) and cortisol were measured before and after 4 months treatment with spironolactone or eplerenone. RESULTS: There were no differences in baseline characteristics including hemodynamic parameters and plasma levels of biomarkers between 2 groups. In both groups, plasma B-type natriuretic peptide levels were significantly decreased and plasma aldosterone levels were significantly increased after 4 months. In patients receiving spironolactone (n = 34), plasma adiponectin levels were significantly decreased (12.6 ± 1.4-11.2 ± 1.3 μg/mL, P < .0001) and HbA₁(c) and cortisol levels were significantly increased (5.61 ± 0.1-5.8 ± 0.1\%, P < .0001, 11.3 ± 0.8-14.7 ± 1.3 μg/dL, P = .003, respectively). In patients receiving spironolactone, there was a significant positive correlation between the change in cortisol and the change in HbA₁(c) (r = 0.489, P = .003). In contrast, in patients receiving eplerenone (n = 73), plasma levels of adiponectin, HbA₁(c) and cortisol did not change. CONCLUSION: These findings indicated that the metabolic effect of eplerenone differed from that of spironolactone and that eplerenone had a superior metabolic effect especially on HbA₁(c) in CHF patients. Copyright © 2010 Mosby, Inc. All rights reserved. This article was published in Am Heart J and referenced in Anatomy & Physiology: Current Research

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