Key result
Norepinephrine administration in rats significantly increased GPx, GR, and SOD activity, decreased the GSH/GSSG ratio, and increased MDA levels, indicating oxidative damage.
Norepinephrine administration in rats induces oxidative damage and apoptosis through reactive intermediates from auto-oxidation, contributing to catecholamine-induced cardiotoxicity.
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Suggests ROS involvement in NE cardiotoxicity; leaves open antioxidant targets in catecholamine excess.
Neri et al. (2007) studied Catecholamine-induced cardiotoxicity (n=195). Norepinephrine administration was evaluated on Antioxidant cardiac cellular defence systems, cardiac beta1-adrenergic receptors, and cellular morphological alterations. Norepinephrine administration in rats significantly increased GPx, GR, and SOD activity, decreased the GSH/GSSG ratio, and increased MDA levels, indicating oxidative damage.
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