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- W2022776033 abstract "Background Cardiac resynchronization therapy (CRT) promotes left ventricular (LV) reverse remodelling and affects myocardial collagen turnover in heart failure (HF) patients. Osteopontin (OPN) is a matrix glycoprotein required for the activation of fibroblasts upon TGF-β1 stimulation. In humans, plasma OPN and OPN-expressing lymphocytes correlate with the severity of HF. We sought to evaluate whether plasma OPN and TGF-β1 reflect LV reverse remodelling following CRT. Methods Eighteen patients (12 men, mean age 65±11 years) undergoing CRT were studied. Patients underwent baseline clinical and echocardiographic evaluation, and assessment of plasma OPN and TGF-β1. The evaluation was repeated 8.5±4 months after device implantation. Eight healthy age- and sex-matched subjects served as controls. Results In HF patients, baseline plasma OPN and TGF-β1 were higher as compared to control subjects (OPN: 99±48 vs 59±22 ng/ml; p<0.05; TGF-β1: 15.9±8.0 vs 9.3±5.6 ng/ml; p<0.05). At follow-up, 12 patients responded to CRT and showed LV reverse remodelling, whereas 6 did not. Plasma OPN decreased in CRT responders (108±47 vs 84±37 ng/ml; p=0.03) and increased in non-responders (79±58 vs 115±63 ng/ml; p<0.01). TGF-β1 showed a trend towards reduction in responders (17.5±8.7 vs 10.2±8.9 ng/ml; p=0.08) and was unchanged in non-responders. A significant correlation (r=−0.56; p=0.01) was found between relative changes of LVESV and plasma OPN. Conclusions CRT-induced LV reverse remodelling is reflected by changes in plasma OPN. Circulating OPN may represent a marker of LV dilation/impairment and an indicator of the response to HF therapies promoting LV reverse remodelling." @default.
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- W2022776033 date "2011-12-01" @default.
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- W2022776033 title "Plasma osteopontin reveals left ventricular reverse remodelling following cardiac resynchronization therapy in heart failure" @default.
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- W2022776033 doi "https://doi.org/10.1016/j.ijcard.2010.08.048" @default.
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