Parkinsons Symptoms

Parkinson's disease is a neurodegenerative disorder that affects predominately dopamine-producing (“dopaminergic”) neurons in a specific area of the brain called substantia nigra. Parkinson's disease has four main symptoms such as tremor (trembling) in hands, arms, legs, jaw, or head, stiffness of the limbs and tru...

Japanese researchers report promising results from an experimental therapy for Parkinson’s disease that involves implanting neurons made from ‘reprogrammed’ stem cells into the brain. A trial conducted in monkeys with a version of the disease showed that the treatment improved their symptoms and seemed to be safe, a...