"Opening of the mitochondrial permeability transition pore (MPTP) has been shown to contribute to myocardial ischemia/reperfusion injury. We sought to demonstrate that the myocardial protective effect of inhibiting MPTP opening with cyclosporine A (CsA) results in stabilization of mitochondrial morphology and is independent of CsA-induced calcineurin inhibition," scientists writing in the journal Annals of Thoracic Surgery report (see also Ischemia).
"Thirty-seven rabbits were divided into three groups: control (n = 15), CsA (MPTP and calcineurin inhibitor, n = 12), or FK506 (calcineurin inhibitor, n = 10). Each group received a 1-hour infusion of either a saline …
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