Annals of the New York Academy of Sciences · 2008
Methamphetamine fails to alter the noradrenergic integrity of the heart.
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Ruffoli Riccardo, Soldani Paola, Pasquali Livia, Ruggieri Stefano, Paparelli Antonio, Fornai Francesco
Аннотация
The chronic use of methamphetamine leads to cardiomyopathy and a nigrostriatal dopamine deficiency that partly mimics what occurs in Parkinson's disease. This study examines the cardiac effects occurring after chronic administration of methamphetamine and parkinsonism-inducing neurotoxin 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine. Despite the similarities concerning the nigrostriatal dopamine denervation, methamphetamine failed to produce chronic norepinephrine depletion in the heart, thus contrasting with what occurs in Parkinson's disease or after administration of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine. These data suggest that the chronic cardiovascular effects induced by methamphetamine rely on biochemical changes which differ from those activated by 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine or during the course of Parkinson's disease.