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Related to acetylcholine: acetylcholinesterase, dopamine, serotonin, Acetylcholine receptor


A substance, C7H17NO3, that is derived from choline and is released at the ends of nerve fibers in the somatic and parasympathetic nervous systems, where it mediates the transmission of nerve impulses.


(ˌæsɪtaɪlˈkəʊliːn; -lɪn)
(Biochemistry) a chemical substance secreted at the ends of many nerve fibres, esp in the autonomic nervous system, and responsible for the transmission of nervous impulses. Formula: CH3CO2(CH2)2N(CH3)3+


(əˌsit lˈkoʊ lin, əˌsɛt-)

a short-acting neurotransmitter, widely distributed in the body, that functions as a nervous system stimulant, a vasodilator, and a cardiac depressant.
Abbr.: ACh
a•ce`tyl•cho•lin′ic (-ˈlɪn ɪk) adj.


A neurotransmitter that triggers activity by muscles or secretory glands.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.acetylcholine - a neurotransmitter that is a derivative of cholineacetylcholine - a neurotransmitter that is a derivative of choline; released at the ends of nerve fibers in the somatic and parasympathetic nervous systems
neurotransmitter - a neurochemical that transmits nerve impulses across a synapse
References in periodicals archive ?
Next the effect of various acetylcholine concentrations and the interaction with both AUC-P and AUC-V are shown (Fig.
Doctors that see patients exposed to sarin gas will usually administer intravenous drugs like atropine to block the muscle effects and pralidoxime, which reinvigorates the body's ability to break down acetylcholine.
dorsalis, we report the cloning and characterization of the nicotinic acetylcholine receptor alpha6 cDNA and the expression patterns at different developmental stages and in different tagmata of adult flies using quantitative real-time PCR.
It is important to understand that the nondepolarizing blocking agents also competitively block acetylcholine receptors at the autonomic ganglia, producing cardiovascular side effects on heart rate and blood pressure.
Razadyne[R] (galantamine, Cholinesterase inhibitor prescribed formerly known as to treat symptoms of mild to Reminyl[R]) moderate AD Prevents the breakdown of acetylcholine and stimulates nicotinic receptors to release more acetylcholine in the brain.
The mechanism by which acetylcholine receptors on axons lower neurons' firing thresholds remains uncertain, Metherate says.
Because chlorpyrifos can cause adverse effects by allowing acetylcholine to build up at nerve endings, the scientists tested two receptor agonists, atropine (which blocks muscarinic receptors) and mecamylamine (which blocks nicotinic receptors).
Acetylcholine is one of the chemicals that nerve cells use to communicate.
Once acetylcholine has carried out its job of triggering a reaction in an adjacent cell, it is decomposed by an enzyme present in the synapse.
Changeux and Edelstein, who were significant contributors to research on the nicotinic receptors for acetylcholine (a membrane associated with chemical transduction in the nervous system that also interfaces with nicotine) and allosteric proteins.
Yet there's not a single published study in healthy people showing that any of the five ingredients never mind the combination--increases acetylcholine levels or mental performance.
But the long-term effects of regularly consuming these compounds in vegetables belonging to the Brassicaceae (Cabbage family) might certainly be beneficial in reducing a decline in acetylcholine levels in the central nervous system.