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Withania somnifera root extract (Ws)/Ashwagandha/Indian ginseng is a traditional herbal medicine, used over 4000 years in India, shown to have effect on neural growth and locomotor function. Although catecholamines and oxidative stress resulting in neurodegeneration and locomotor disorder are the main events in Parkinson's disease (PD), efficacy of the drug on these molecules and physiological abnormality are not clear.
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