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Combined Fenobam and Amantadine Treatment Promotes Robust Antidyskinetic Effects in the 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-lesioned Primate Model of Parkinson's Disease

Combined Fenobam and Amantadine Treatment Promotes Robust Antidyskinetic Effects in the 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-lesioned Primate Model of Parkinson's Disease

Wai Kin D Ko, Elsa Pioli, Qin Li, Steve McGuire, Audrey Dufour, Todd B Sherer, Erwan Bezard, Maurizio F Facheris

Mov Disord. 2014 May;29(6):772-9.

PMID: 24610195

Abstract:

Amantadine, an N-methyl-D-aspartate glutamate receptor antagonist, is currently the only pharmacological treatment for levodopa-induced dyskinesia (LID) in Parkinson's disease (PD), but causes adverse effects on the central nervous system at therapeutic doses. Fenobam, a negative modulator of metabotropic glutamate receptor subtype 5, has recently been reported to attenuate LID in MPTP-treated macaques. The aim of the current study was to investigate the treatment interactions of fenobam and amantadine on LID in the MPTP-treated macaque model of PD. The antidyskinetic and -parkinsonian effects were measured after administration of fenobam (10-30 mg/kg) and amantadine (10-30 mg/kg) alone and in combination. Fenobam (30 mg/kg) and amantadine (30 mg/kg) alone reduced LID, whereas lower doses of either drug did not cause any significant effects. A combined treatment of fenobam and amantadine at subthreshold doses (10 and 20 mg/kg) significantly reduced LID without worsening PD disability. These data suggest that a low-dose combination of fenobam and amantadine can be used for alleviating dyskinesia without causing adverse motor effects. Such combined therapies may offer a new therapeutic strategy for treatment of LID in PD patients.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP57653266	Fenobam		57653-26-6	Price

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