[Comparative analysis of the cardioprotective effect of antioxidant dibunol and agonists of mu- and delta-opioid receptors during oxidative stress].

Upon intravenous injection of the delta-opioid receptor agonists, the isolated perfused rat heart became resistant to free radical damage. The cardioprotector activity of the delta-receptor agonists is more pronounced than that of the antioxidant dibunol. Both dibunol and the delta-receptor agonists favored a decrease in the level of diene conjugates in myocardium. Stimulation of the mu-opioid receptors did not change the resistance of rat heart to the oxidative stress.