Final answer:
Yes, dopamine can be administered to the brain to treat Parkinson's disease by providing L-DOPA, which increases dopamine levels. However, patients may become less responsive to treatment over time.
Step-by-step explanation:
Yes, dopamine can be administered to the brain to treat Parkinson's disease. Parkinson's is a neurodegenerative disorder characterized by a loss of dopamine-producing neurons in the brain. Currently, the most common treatment approach is to provide the amino acid L-DOPA, which is converted into dopamine by neurons and can increase dopamine levels in the brain. However, over time, patients may become less responsive to L-DOPA treatment and may experience side effects.