Neurology: L-Dopa for Parkinson's

In the vast majority of cases of Parkinson's disease, or "shaking palsy," physicians cannot be sure what originally caused the nerve damage that results in the patient's tremor, muscle rigidity, forward-falling posture, hasty gait and "pill-rolling" movements of the fingers. As with most diseases of which the basic causes are unknown, there is a yard-long list of drugs that have been tried; some give modest relief, but all fall far short of cure. Even radical brain surgery usually relieves only some of the symptoms. Now a new drug has been found that...

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