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  • Title: Peripheral effects of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) and its main metabolite 1-methyl-4-phenylpyridinium ion (MPP+) in the rat.
    Author: Algeri S, Ambrosio S, Garofalo P, Gerli P.
    Journal: Eur J Pharmacol; 1987 Sep 11; 141(2):309-12. PubMed ID: 3500067.
    Abstract:
    The effect of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) and its main metabolite 1-methyl-4-phenyl-pyridinium ion (MPP+) on catecholamine concentrations was tested in some peripheral organs of the rat. Acute injection of either compound caused a marked depletion of heart noradrenaline (NA). MPP+ had more effect than the parent compound. MPTP had no effect on adrenal catecholamines while its metabolite was effective, but only after several hours. Repeated MPTP and MPP+ injections (20 mg/kg X 5) resulted in marked depletion of heart NA and adrenal gland adrenaline. Clear recovery was observed in both organs 10 days after treatment.
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