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  • Title: Effects of iloprost (ZK 36374) on glutathione status during ischaemia and reperfusion of rabbit isolated hearts.
    Author: Ferrari R, Cargnoni A, Curello S, Boffa GM, Ceconi C.
    Journal: Br J Pharmacol; 1989 Oct; 98(2):678-84. PubMed ID: 2479443.
    Abstract:
    1. Reperfusion of rabbit isolated hearts after 60 min of ischaemia resulted in poor recovery of mechanical function, release of creatine phosphokinase (CPK) and of reduced (GSH) and oxidized (GSSG) glutathione, reduction of mitochondrial superoxide dismutase (Mn SOD) activity and of tissue GSH/GSSG ratio with a shift of cellular thiol redox state toward oxidation, suggesting the occurrence of oxidative stress. 2. Pretreatment of the isolated heart with the stable prostacyclin analogue (iloprost) at 27 or 270 nM, but not at 2.7 nM, improved the functional recovery of the myocardium, reduced CPK, GSH and GSSG release, maintained Mn SOD activity and attenuated the occurrence of oxidative stress. 3. This effect of iloprost cannot be explained by a decreased demand or an enhanced delivery of oxygen during ischaemia or by a direct effect on glutathione peroxidase and reductase activity.
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