Deep brain stimulation slows progression of Parkinson's disease in animal models

Researchers at the Neuroscience Institute at the University of Cincinnati and University Hospital showed that DBS not only alleviates symptoms of Parkinson's disease, but also delayes disease progression. In DBS, high-frequency stimulating electrodes can promote the release of specific neurotrophic factor, which prevents the death of dopamine-producing cells in the brain.

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http://www.sciencedaily.com/releases/2008/09/080902171151.htm