Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun An amino acid that is the metabolic precursor of dopamine, is converted in the brain to dopamine, and used in synthetic form to treat Parkinson's disease.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun the levorotatory form of dopa (trade names Bendopa and Brocadopa and Larodopa); as a drug it is used to treat Parkinson's disease

Etymologies

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Examples

  • The researchers then gave the volunteers a drug called L-dopa, which is usually used to relieve the symptoms of Parkinson's disease by increasing levels of dopamine in the brain.

    Archive 2006-02-01

  • The researchers then gave the volunteers a drug called L-dopa, which is usually used to relieve the symptoms of Parkinson's disease by increasing levels of dopamine in the brain.

    The Conspiracy Theorist Chemical

  • Dr. Jim Duke describes fava beans Vicia faba as one of nature's best sources for the compound called L-dopa, which is the precursor of dopamine in the brain.

    THE NATURAL REMEDY BIBLE

  • Around age six, the twins started taking a drug called L-dopa, which dramatically lessened their muscle spasms and other symptoms.

    Genetic Test Pinpoints Cause of Patient Illness

  • Around age six, the twins started taking a drug called L-dopa, which dramatically lessened their muscle spasms and other symptoms.

    Genetic Test Pinpoints Cause of Patient Illness

  • Around age six, the twins started taking a drug called L-dopa, which dramatically lessened their muscle spasms and other symptoms.

    Genetic Test Pinpoints Cause of Patient Illness

  • Another herb—red velvet bean plant—is used widely in Indian Ayurvedic medicine and contains L-dopa, which is converted to dopamine once it crosses the blood-brain barrier and might be used to treat Parkinson’s disease in higher doses.

    You Staying Young

  • Another herb—red velvet bean plant—is used widely in Indian Ayurvedic medicine and contains L-dopa, which is converted to dopamine once it crosses the blood-brain barrier and might be used to treat Parkinson’s disease in higher doses.

    You Staying Young

  • Another herb—red velvet bean plant—is used widely in Indian Ayurvedic medicine and contains L-dopa, which is converted to dopamine once it crosses the blood-brain barrier and might be used to treat Parkinson’s disease in higher doses.

    You Staying Young

  • Four patients were selected who were suffering from Parkinson’s disease—characterized by low brain dopamine—and receiving large quantities of an amino acid called L-dopa, which converts directly into dopamine.

    Alcohol and The Addictive Brain

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