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Neurotransmitters

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Updated September 03, 2008

Photo © Alzheimer's Disease Education & Referral Center Photo © Alzheimer's Disease Education & Referral Center
Definition: Chemicals released by neurons (brain cells) that act as messengers by crossing synapses (spaces between brain cells) and affecting the receiving cells. Acetylcholine and glutamate are two neurotransmitters whose activity have been linked to Alzheimer's disease.

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