title: Determinants of adiponectin levels in patients with chronic systolic heart failure.
abstract: Adiponectin, an adipocytokine, is secreted by adipocytes and mediates antihypertrophic and anti-inflammatory effects in the heart. Plasma concentrations of adiponectin are decreased in the presence of obesity, insulin resistance, and obesity-associated conditions such as hypertension and coronary heart disease. However, a paradoxical increase in adiponectin levels is observed in human systolic heart failure (HF). We sought to investigate the determinants of adiponectin levels in patients with chronic systolic HF. Total adiponectin levels were measured in 99 patients with stable HF and a left ventricular (LV) ejection fraction of <40%. The determinants of adiponectin levels on univariate analysis were included in a multivariate linear regression model. At baseline, 62% of the patients were black, 63% were men, the mean age was 60 + or - 13 years, the LV ejection fraction was 21 + or - 9%, and the body mass index was 30.6 + or - 6.7 kg/m(2). The mean adiponectin level was 15.8 + or - 15 microg/ml. Beta-Blocker use, body mass index, and blood urea nitrogen were significant determinants of adiponectin level on multivariate analysis. The LV mass, structure, and LV ejection fraction were not related to adiponectin levels on multivariate analysis. The effect of beta-blocker therapy was most marked in nonobese patients with a body mass index <30 kg/m(2). In conclusion, in patients with chronic systolic HF, beta-blocker therapy correlated with lower adiponectin levels, especially in nonobese patients. This relation should be taken into account when studying the complex role of adiponectin in patients with chronic systolic HF.
authors.affiliation: Division of Cardiology, Hospital de Clínicas de Porto Alegre, Federal University of Rio Grande do Sul, Porto Alegre, Brazil.
authors.forename: Andreia
authors.initials: A
authors.lastname: Biolo
authors.forename: Rei
authors.initials: R
authors.lastname: Shibata
authors.forename: Noriyuki
authors.initials: N
authors.lastname: Ouchi
authors.forename: Shinji
authors.initials: S
authors.lastname: Kihara
authors.forename: Mina
authors.initials: M
authors.lastname: Sonoda
authors.forename: Kenneth
authors.initials: K
authors.lastname: Walsh
authors.forename: Flora
authors.initials: F
authors.lastname: Sam
mesh_terms: D052242:Adiponectin / Q000097:blood*; D000319:Adrenergic beta-Antagonists / Q000627:therapeutic use; D015415:Biomarkers / Q000097:blood*; D018450:Disease Progression; D004797:Enzyme-Linked Immunosorbent Assay; D005260:Female; D005500:Follow-Up Studies; D054143:Heart Failure, Systolic / Q000097:blood* / Q000188:drug therapy / Q000503:physiopathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D010045:Outpatients; D011379:Prognosis; D012189:Retrospective Studies; D012720:Severity of Illness Index; D013318:Stroke Volume; D016277:Ventricular Function, Left / Q000502:physiology
chemical_list: D052242:Adiponectin; D000319:Adrenergic beta-Antagonists; D015415:Biomarkers
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