Journal
MOLECULAR BRAIN RESEARCH
Volume 134, Issue 1, Pages 170-179Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.molbrainres.2004.08.008
Keywords
MPTP; exercise; GDNF; neurotrophic factors; mouse
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Funding
- NINDS NIH HHS [NS39006, NS45906] Funding Source: Medline
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Idiopathic Parkinson's disease (PD) affects 2% of adults over 50 years of age. PD patients demonstrate a progressive loss of dopamine neurons in the substantia nigra pars compacta (SNpc). One model that recapitulates the pathology of PD is the administration of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP). Here we show that exposure to an enriched environment (EE) (a combination of exercise, social interactions and learning) or exercise alone during adulthood, totally protects against MPTP-induced Parkinsonism. Furthermore, changes in mRNA expression would suggest that increases in glia-derived neurotrophic factors, coupled with a decrease of dopamine-related transporters (e.g. dopamine transporter, DAT; vesicular monamine transporter, VMAT2), contribute to the observed neuroprotection of dopamine neurons in the trigrostriatal system following MPTP exposure. This non-pharmacological approach presents significant implications for the prevention and/or treatment of PD. (C) 2004 Elsevier B.V. All rights reserved.
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