Exercise attenuates levodopa-induced dyskinesia in 6-hydroxydopamine-lesioned mice

• Author(s): Jr., A. S. Aguiar ; Moreira, E. L. G. ; Hoeller, A. A. ; Oliveira, P. A. ; Córdova, F. M. ; Glaser, V. ; Walz, R. ; Cunha, R. A. ; Leal, R. B. ; Latini, A. ; Prediger, R. D. S.
• Date: 2013
• Persistent ID: http://hdl.handle.net/10316/27237
• Origin: Estudo Geral - Universidade de Coimbra
• Subject(s): DARPP-32; dyskinesia; exercise; l-DOPA; Parkinson’s disease; 6-OHDA
• Document Type: Article
• Language: Portuguese

Description

l-DOPA alleviates the motor symptoms of Parkinson’s disease, but its long-term use is associated with undesirable dyskinesia. We now tested whether exercise can attenuate this l-DOPA-induced dyskinesia (LID). We tested the effects of exercise on LID in 6-hydroxydopamine hydrochloride-hemiparkinsonian mice. Animals were treated with l-DOPA/benserazide (25/12.5 mg/kg, i.p.) without and with possibility to exercise (running wheel) during 2 weeks. Exercise drastically prevented the development of LID, and its associated aberrant striatal signaling, namely the hyperphosphorylation of dopamine and cAMP-regulated phosphoprotein 32 kDa protein and c-Fos expression. Our results indicate that exercise can partially prevent the development of LID through the normalization of striatopallidal dopaminergic signaling.