Parkinson's disease is characterized by a deficiency of?

Answer 1

Parkinson's disease is characterized by a deficiency of dopamine, a neurotransmitter that plays a crucial role in coordinating movement and regulating mood. This deficiency occurs due to the degeneration of dopaminergic neurons in the substantia nigra, a region of the brain involved in movement control. The resulting imbalance between dopamine and other neurotransmitters leads to the motor symptoms commonly associated with the disease, such as tremors, rigidity, and bradykinesia.