Abstract:
:Available treatment for Parkinson's disease (PD) is mainly symptomatic instead of halting or reversing degenerative processes affecting the disease. Research on the molecular pathogenesis of PD has suggested reduced trophic support as a possible cause or mediator of neurodegeneration. In animal models of the disease, neurotrophic factors prevent neurodegeneration and induce behavioral recovery. Some anti-Parkinsonian drugs show neuroprotective activity, but it is not known whether the drug-induced neuroprotection is mediated by neurotrophic factors. In this study, we have investigated the influence of two neuroprotective anti-Parkinsonian drugs, the monoamine oxidase B inhibitor selegiline and the adenosine A(2A) antagonist SCH 58261, on the levels of brain-derived neurotrophic factor (BDNF) and cerebral dopamine neurotrophic factor (CDNF) in the mouse brain. Protein levels of BDNF and CDNF were quantified by western blot after 2 weeks of treatment with either of the drugs or placebo. CDNF levels were not significantly influenced by selegiline or SCH 58261 in any brain area studied. Selegiline treatment significantly increased BDNF levels in the anterior cingulate cortex (1.55 +/- 0.22, P < 0.05, Student's t-test). In the striatum, selegiline increased BDNF content by 32%, but this change did not reach statistical significance (1.32 +/- 0.15, P < 0.13, Student's t-test). Our data suggest that neurotrophic factors, particularly BDNF may play a role in the neuroprotective effects of selegiline, but do not support the hypothesis that anti-Parkinsonian drugs would work by increasing the levels of CDNF in brain.
journal_name
Cell Mol Neurobioljournal_title
Cellular and molecular neurobiologyauthors
Gyárfás T,Knuuttila J,Lindholm P,Rantamäki T,Castrén Edoi
10.1007/s10571-009-9458-3subject
Has Abstractpub_date
2010-04-01 00:00:00pages
361-8issue
3eissn
0272-4340issn
1573-6830journal_volume
30pub_type
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