Abstract:
:The classical motor symptoms of Parkinson’s disease (PD) are preceded by non-motor symptoms in preclinical stages, including cognition impairment. The current drug treatment for PD is palliative and does not meet the clinical challenges of the disease, such as levodopa-induced dyskinesia, non-motor symptoms, and neuroprotection. We investigated the neuroprotective and disease-modifying potential of physical exercise in a preclinical animal model of PD. C57BL/6 mice (adult males) ran on a horizontal treadmill for 6 weeks (moderate intensity, 5 times/week) and were treated intranasally with 65 mg/kg of the neurotoxin 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP). Exercise did not protect against MPTP-induced nigrostriatal neurodegeneration or frontostriatal dopamine depletion but decreased striatal dopamine turnover. Exercise also attenuated procedural and working memory impairment and D2 receptor hypersensitivity in MPTP-treated mice. In summary, exercise improved dopaminergic neurotransmission and enhanced cognition in a preclinical animal model of PD.
journal_name
Neurotox Resjournal_title
Neurotoxicity researchauthors
Aguiar AS Jr,Lopes SC,Tristão FS,Rial D,de Oliveira G,da Cunha C,Raisman-Vozari R,Prediger RDdoi
10.1007/s12640-015-9566-4subject
Has Abstractpub_date
2016-01-01 00:00:00pages
118-25issue
1eissn
1029-8428issn
1476-3524pii
10.1007/s12640-015-9566-4journal_volume
29pub_type
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