Localization of muscarinic receptor subtypes in brain stem areas regulating sleep

Helen Baghdoyan, Vasiliki J. Mallios, Robert B. Duckrow, Deborah C. Mash

Research output: Contribution to journalArticle

47 Citations (Scopus)

Abstract

Muscarinic cholinergic receptors (mAChRs) within the pontine brain stem play a key role in generating rapid eye movement (REM) sleep. Using an in vitro autoradiographic technique that permits selective labeling of mAChR subtypes by radioligand binding, this study provides the first quantitative map of mAChR subtypes in cat brain stem areas important for REM sleep generation. Ml, M2 and M3 mAChR subtypes were distributed heterogeneously throughout the brain stem. For all 3 mAChR subtypes, the greatest levels of binding were found in the dorsal raphe and locus coeruleus, and the least amount of binding was in the reticular formation. These findings are consistent with data from in vivo studies showing that multiple mAChR subtypes are involved in REM sleep generation.

Original languageEnglish (US)
Pages (from-to)1631-1634
Number of pages4
JournalNeuroReport
Volume5
Issue number13
DOIs
StatePublished - Jan 1 1994
Externally publishedYes

Fingerprint

REM Sleep
Muscarinic Receptors
Brain Stem
Sleep
Reticular Formation
Locus Coeruleus
Cholinergic Receptors
Cats

All Science Journal Classification (ASJC) codes

  • Neuroscience(all)

Cite this

Localization of muscarinic receptor subtypes in brain stem areas regulating sleep. / Baghdoyan, Helen; Mallios, Vasiliki J.; Duckrow, Robert B.; Mash, Deborah C.

In: NeuroReport, Vol. 5, No. 13, 01.01.1994, p. 1631-1634.

Research output: Contribution to journalArticle

Baghdoyan, Helen ; Mallios, Vasiliki J. ; Duckrow, Robert B. ; Mash, Deborah C. / Localization of muscarinic receptor subtypes in brain stem areas regulating sleep. In: NeuroReport. 1994 ; Vol. 5, No. 13. pp. 1631-1634.
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