Myocardial adaptation to long-term action of substances associated with decreased intensity of cardiac function.

Abstract

The effect of prolonged treatment of rats with 6-n-propyl-2-thiouracil (PTU), verapamil, or propranolol on cardiac pump function and the properties of myofibrils and mitochondria was studied. After 6-8 weeks of treatment, the heart rate and maximal cardiac output of the isolated heart of rats treated with verapamil or propranolol were higher than those in… (More)

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