期刊
JOURNAL OF NEUROSURGERY
卷 106, 期 4, 页码 695-700出版社
AMER ASSOC NEUROLOGICAL SURGEONS
DOI: 10.3171/jns.2007.106.4.695
关键词
Parkinson disease; primary motor cortex; MPTP; motor cortex stimulation; Macaca fascicularis
资金
- NATIONAL INSTITUTE OF NEUROLOGICAL DISORDERS AND STROKE [R01NS044551] Funding Source: NIH RePORTER
- NINDS NIH HHS [R01 NS044551-03, R01 NS044551, NS044551] Funding Source: Medline
Object. The authors sought to examine the therapeutic efficacy of motor cortex stimulation (MCS) in 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-treated macaques and to characterize therapeutic differences with varying modes, frequencies, and durations of stimulation. Methods. Motor cortex stimulation was delivered at currents below motor threshold and at frequencies between 5 and 150 Hz through epidural electrodes over the primary motor cortex. The animals were studied during and without MCS using video analysis, activity logging, and food retrieval tasks. Animals were examined using two different stimulation protocols. The first protocol consisted of 1 hour of MCS therapy daily. The second protocol exposed the animal to continuous MCS for more than 24 hours with at least 2 weeks between MCS treatments. Conclusions. Daily MCS yielded no consistent change in symptoms, but MCS at 2-week intervals resulted in significant increases in activity. Effects of biweekly MCS disappeared, however, within 24 hours of the onset of continuous MCS. In this study, MCS only temporarily reduced the severity of MPTP-induced parkinsonism.
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