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Suppression and prevention of H2O2-induced EAD and VF in 2 aged rat hearts by N-acetylcysteine (NAC; 2 mM). A and B: simultaneous microelectrode and ECG recordings, showing NAC-induced suppression of EAD-mediated VF and its reemergence 16 min after NAC washout (WO). B: prevention of VF by NAC pretreatment and the emergence of VF 25 min after NAC WO.
