On the ability of choline and its analogues to interact with muscarinic cholinergic receptors in the rat brain

Research output: Contribution to journalArticlepeer-review

Abstract

Choline displaced [3H]QNB binding from rat brain muscarinic receptors competitively, (Ki = 460 μM) but it was only 1/1000th as potent as ACh. Deanol was an extremely weak displacer of [3H]QNB binding while hemicholinium-3 was 50 times more potent than choline. Although brain levels of choline are well below its Ki value for muscarinic receptors, choline may directly interact with rat brain muscarinic receptors in some circumstances.

Original languageEnglish
Pages (from-to)197-201
Number of pages5
JournalEuropean Journal of Pharmacology
Volume58
Issue number2
DOIs
StatePublished - Sep 15 1979
Externally publishedYes

ASJC Scopus Subject Areas

  • Pharmacology

Keywords

  • Brain muscarinic receptors
  • Choline
  • Dimethylaminoethanol
  • Hemicholinium-3
  • [H]Quinuclidinyl benzilate

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