Question

Patients with Parkinson's disease are sometimes given L-DOPA (3,4-dihydroxyphenylalanine). What neurotransmitter is produced by the decarboxylation of $\mathrm{L}$ -DOPA?

   Patients with Parkinson's disease are sometimes given L-DOPA (3,4-dihydroxyphenylalanine). What neurotransmitter is produced by the decarboxylation of $\mathrm{L}$ -DOPA?

Fundamentals of Biochemistry

Fundamentals of Biochemistry

Donald Voet, Judith… 5th Edition

Chapter 4, Problem 14

Instant Answer

Solved by Expert Shazia Naz

03/21/2021

Step 1

Decarboxylation is a chemical reaction that removes a carboxyl group from a molecule. In the case of L-DOPA, this process involves the removal of a carboxyl group (COOH) from the molecule. Show more…

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Patients with Parkinson's disease are sometimes given L-DOPA (3,4-dihydroxyphenylalanine). What neurotransmitter is produced by the decarboxylation of $\mathrm{L}$ -DOPA?

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Key Concepts

Dopamine

Dopamine is a primary neurotransmitter involved in several essential functions including motor control, motivation, and reward. It plays a central role in the brain’s reward system and is a key target in the treatment of disorders such as Parkinson’s disease.

L-DOPA as a Precursor

L-DOPA is the metabolic precursor to dopamine, used therapeutically to increase dopamine levels in the brain. It readily crosses the blood-brain barrier and is converted into dopamine to help alleviate symptoms of dopamine deficiency.

Enzymatic Decarboxylation

Enzymatic decarboxylation is a biochemical process in which a carboxyl group is removed from a molecule, such as L-DOPA, by an enzyme. This reaction is crucial in converting precursor molecules into active neurotransmitters, exemplified by the formation of dopamine from L-DOPA.

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