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  • Title: Prevention by an inhibitor of the L-arginine-nitric oxide pathway of the antiarrhythmic effects of bradykinin in anaesthetized dogs.
    Author: Vegh A, Papp JG, Szekeres L, Parratt JR.
    Journal: Br J Pharmacol; 1993 Sep; 110(1):18-9. PubMed ID: 7693277.
    Abstract:
    The intracoronary administration of bradykinin (25 ng kg-1 min-1) markedly reduces the severity of arrhythmias that occur during a 25 min occlusion of the left anterior descending coronary artery in chloralose, urethane anaesthetized dogs. This protection was abolished by the prior administration, by the same route, of NG-nitro-L-arginine methyl ester (L-NAME), an inhibitor of the L-arginine-nitric oxide pathway. The protective effect of bradykinin on reperfusion-induced VF was not affected by L-NAME. These results strongly suggest that the antiarrhythmic effect of bradykinin in this model is mediated by nitric oxide release. It also supports the concept that bradykinin might be a 'primary mediator' of the protective, antiarrhythmic effects of ischemic preconditioning.
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