Common quantitative trait loci for alcohol-related behaviors and central nervous system neurotensin measures: Locomotor activation

V. Gene Erwin, Richard A. Radcliffe, Vaughn M. Gehle, Byron C. Jones

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37 Citations (Scopus)

Abstract

We have analyzed LSXSS recombinant inbred for ethanol-induced activity using 2.0 g/kg ethanol and a new method we call ethanol activation slope. The ethanol activation slope provides a robust dose-response measure of ethanol activation, independent of both activity after saline and the inhibitory effects of ethanol on locomotor activity. These behavioral data were used in a quantitative trait locus analysis to map chromosomal loci involved in ethanol-induced locomotor activity. We tentatively identified seven loci that mediate the low-dose stimulatory effect of ethanol and six loci involved in locomotion after 2.0 g/kg ethanol. Only one of the loci are in common between the two behaviors. We also compared the behavioral quantitative trait locus to those previously identified that are involved in regulating central nervous system neurotensin levels and neurotensin receptor densities. Six chromosomal regions were identified that regulate at least one central nervous system neurotensin measure and an ethanol-induced locomotor behavior. The identification of loci controlling both central nervous system neurotensin levels or neurotensin receptor densities and ethanol-induced locomotor activity strengthens the proposal that neurotensin regulates, in part, ethanol-induced behaviors and central nervous system sensitivity to ethanol.

Original languageEnglish (US)
Pages (from-to)919-926
Number of pages8
JournalJournal of Pharmacology and Experimental Therapeutics
Volume280
Issue number2
StatePublished - May 3 1997

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Neurotensin
Quantitative Trait Loci
Ethanol
Central Nervous System
Alcohols
Locomotion
Neurotensin Receptors

All Science Journal Classification (ASJC) codes

  • Molecular Medicine
  • Pharmacology

Cite this

Common quantitative trait loci for alcohol-related behaviors and central nervous system neurotensin measures : Locomotor activation. / Erwin, V. Gene; Radcliffe, Richard A.; Gehle, Vaughn M.; Jones, Byron C.

In: Journal of Pharmacology and Experimental Therapeutics, Vol. 280, No. 2, 03.05.1997, p. 919-926.

Research output: Contribution to journalArticle

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