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Food restriction (FR) has been shown to promote myocardial dysfunction in rats. The aim of this study was to verify the participation of calcium and beta-adrenergic system on myocardial mechanical alteration in rats submitted to FR. Myocardial performance was studied in isolated left ventricular papillar muscle from young Wistar-Kyoto rats (WKY) submitted to FR or to control diet. The groups subjected...
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