Abstract
The influence of putrescine on cardiac arrhythmias induced by either permanent ligature of the left anterior coronary artery or heart reperfusion following a 5-min coronary occlusion was studied in anesthetized rats. Reperfusion-induced arrhythmias were significantly prevented by the i.v. injection of 150–200 mg/kg of putrescine, the survival rate being 100% in treated animals and 40% in controls. At a dose level of 200–300 mg/kg i.v., putrescine also significantly reduced thes the consequences of cardiac induced by permanent coronary occlusion. These findings show that putrescine significantly reduces the consequences of cardiac ischemia and reperfusion, probably as a consequence of its multiple stabilizing effects at the membrane level.
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