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  • Title: BDNF levels are not related with levodopa-induced dyskinesias in MPTP monkeys.
    Author: Samadi P, Morissette M, Lévesque D, Di Paolo T.
    Journal: Mov Disord; 2010 Jan 15; 25(1):116-21. PubMed ID: 20014115.
    Abstract:
    Levodopa-induced dyskinesias (LIDs) are frequent in parkinsonian patients and may result from an aberrant plasticity. Brain-derived neurotrophic factor (BDNF) represents a likely candidate to subserve neuroadaptive processes encountered in LIDs. We compared striatal BDNF levels measured by ELISA in levodopa-treated 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) monkeys having developed LIDs compared with animals where LIDs were prevented by the addition of CI-1041 (NR1A/2B NMDA receptor antagonist) or low doses of cabergoline (dopamine D2 receptor agonist). We observed reduced striatal BDNF concentrations in levodopa-treated MPTP monkeys with or without LIDs, suggesting that levodopa treatment is associated with reduced striatal BDNF levels and is independent of dyskinesias.
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