Scientific publications

Extensive loss of brain dopamine and serotonin induced by chronic administration of MPTP in the marmoset

Pérez-Otaño I, Herrero MT, Oset C, De Ceballos ML, Luquin MR, Obeso JA, Del Río J.
Department of Pharmacology, Clínica Universitaria, University of Navarra Medical School, Pamplona, Spain.

Magazine: Brain Research

Date: Dec 13, 1991

Neurology [SP]

Common marmosets were given a subcutaneous injection of MPTP (1.25-2.5 mg/kg twice a week) for 5 or 10 consecutive months and were sacrificed after a survival time of 6 months or 15 days, respectively.

The parkinsonian symptoms were not very marked at the time of sacrifice but there was a strong decrease of dopamine and, to a lesser extent, of its metabolites in the striatum and in some extrastriatal regions. There was also a profound loss of serotonin in the striatum and in all of the extrastriatal regions analyzed, which was still highly significant 6 months after discontinuation of MPTP treatment.

The results suggest that the selected dosage schedule produces a widespread and lasting neuronal degeneration closely resembling the neurochemical pathology of Parkinson's disease.

CITATION  Brain Res. 1991 Dec 13;567(1):127-32

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