Journal
EUROPEAN HEART JOURNAL
Volume 28, Issue 7, Pages 829-835Publisher
OXFORD UNIV PRESS
DOI: 10.1093/eurheartj/ehm033
Keywords
heart failure; cachexia; coronary artery disease; adipose tissue; metabolism; adiponectin
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Aims Adiponectin is a fat-derived hormone involved in the regulation of metabolism. Adiponectin concentration is inversely related to body weight and, in animals, causes weight loss. We, therefore, measured adiponectin concentration in patients with heart failure (HF) and cachexia. Methods and results Serum adiponectin concentrations were measured in three groups of patients with coronary artery disease (CAD): (i) HF, reduced left ventricular systolic function, and cachexia (n = 10); (ii) HF, reduced systolic function but no cachexia (n = 20); (iii) HF-controls-patients with CAD, no HF, and preserved systolic function (n = 10); and in a healthy control group (n = 7). Patients with HF and cachexia had higher concentrations of adiponectin [23.8 (10.2-37.2) mu g/mL] than all other groups: HF-no cachexia 8.1 (0.5-16.6) mu g/mL; CAD-controls 7.1 (0.4-13.5) mu g/mL; and healthy controls 8.7 (2.5-16.8) mu g/mL) (P < 0.05 for each comparison). Adiponectin correlated negatively with body mass index, percentage of body fat, waist circumference and insulin resistance, and positively with B-type natriuretic peptide (BNP) and tumour necrosis factor-alpha. Conclusion Cachexia in HF is associated with an increase in adiponectin concentration. This may represent preservation of the physiological response to change in body fat but might also suggest that adiponectin plays a rote in the pathogenesis of cachexia. The correlation between BNP and adiponectin also raises the possibility that the former might increase the secretion of the latter.
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