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acetylcholinesterase

acetylcholinesterase

1 9.3
A chemical in the nervous system that breaks down acetylcholine
  • noun
  • /ˌæsɪˌtɪlˈkoʊlɪnˌɛstəreɪs/
  • Specialized
: acetilcolinesterasa
  • Medication has a place; acetylcholinesterase inhibitors (e.g., donepezil) are used in moderate disease, and these may produce marked temporary benefits in some sufferers.

Examples

  • A deficiency in acetylcholinesterase can cause excessive levels of acetylcholine, leading to muscle spasms.

  • Initially, it had been related to the inhibitory effect of acetylcholinesterase enzyme 14.

    Academic text (2007)
  • ACHE acetylcholinesterase in the synaptic cleft.

  • This represents a significant accomplishment," says George. "In the resistant tick, we suspect that the gene coding for acetylcholinesterase may have become altered to block the action of coumaphos."

    Academic text (1994)
  • In addition, the response to stimulation of the vestibular nerve is enhanced by inhibition of acetylcholinesterase and blocked by the antimuscarinic drug scopolamine.

    Academic text (2005)
  • The enzyme acetylcholinesterase breaks down acetylcholine, regulating neurotransmission in the nervous system.

  • Certain medications inhibit acetylcholinesterase to improve communication between nerve cells.

Synonyms

cholinesterase
vsacetylcholinesterase
  • Specialized
1 9.1

A body enzyme that breaks down acetylcholine in nerves

is the specific nervous-system enzyme that performs that breakdown

Surface Forms

Morphology

acetylcholinesterase = acetylcholine (transparent) = acetylcholine + ase

Meaning is predictable as an enzyme acting on acetylcholine via the common enzyme-forming suffix '-ase'.

Etymology

Acetylcholinesterase comes from three parts: acetyl ('vinegar' or 'acid'), choline (a body chemical), and -esterase (an enzyme that 'breaks' a certain chemical link). So, acetylcholinesterase is literally the enzyme that 'breaks down' the chemical acetylcholine in the nerves, which explains its role in controlling nerve signals.