The effect of TRH on ethanol-induced sedation in alcohol-preferring and -nonpreferring rats

Sandra Morzorati, M. J. Kubek

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

TRH antagonism of ethanol sedation was evaluated in selectively-bred alcohol-preferring (P) and -nonpreferring (NP) rats. Intracerebroventricular (i.c.v.) infusions of TRH significantly reduced sleep time in the NP rats. In the P rats, TRH tended to reduce sleep, but this reduction was not significant. TRH had no significant effect on peripheral blood alcohol concentrations. The present results show that NP rats are more sensitive to the analeptic effect of TRH compared to P rats. These data support and extend those of others who have demonstrated a TRH antagonism on drug-induced sedation. Differential sensitivity to TRH may reflect differences in TRH receptor activity and/or TRH metabolism. Sensitivity to TRH analepsis may be associated with sensitivity to ethanol.

Original languageEnglish
Pages (from-to)283-287
Number of pages5
JournalNeuropeptides
Volume25
Issue number5
DOIs
StatePublished - 1993

Fingerprint

Rats
Ethanol
Alcohols
Drug Antagonism
Sleep
Thyrotropin Releasing Hormone Receptors
Central Nervous System Stimulants
Intraventricular Infusions
Metabolism
Blood
Pharmaceutical Preparations

ASJC Scopus subject areas

  • Biochemistry
  • Endocrinology
  • Endocrinology, Diabetes and Metabolism
  • Clinical Neurology
  • Neuroscience(all)
  • Cellular and Molecular Neuroscience

Cite this

The effect of TRH on ethanol-induced sedation in alcohol-preferring and -nonpreferring rats. / Morzorati, Sandra; Kubek, M. J.

In: Neuropeptides, Vol. 25, No. 5, 1993, p. 283-287.

Research output: Contribution to journalArticle

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