Best Neurologist in Noida Greater Noida Dr Khursheed Kaz

Dopamine affects the way that nerve cells fire within the brain, and when there is a loss of dopamine, it results in impaired movement. For those who develop symptoms of Parkinson's Disease (PD), they have likely lost 60-80% or more of the dopamine-producing cells located in the substantia nigra. Studies have also shown that people with PD have a loss of nerve endings that produce the neurotransmitter norepinephrine.