during circulatory shock. Oxidant-induced cell injury involves the activation of poly (ADP-
ribose) polymerase (PARP). Using a dual approach of PARP-1 suppression, by genetic
deletion or pharmacological inhibition with the new potent phenanthridinone PARP inhibitor
PJ34 [the hydrochloride salt of N-(oxo-5, 6-dihydro-phenanthridin-2-yl)-N, N-
dimethylacetamide], we studied whether the impaired cardiac function in endotoxic shock is …