Ethanol driven gene expression in TAP and TAR rat brains

R. L. Elkins, G. Edwards, Steve H Hobbs, Y. J. Fei, T. A. Stoming, G. F. Carl, J. L. Rausch

Research output: Contribution to journalArticle

Abstract

Taste aversion (TA) prone and TA resistant (TAR) rat lines have been bred to facilitate studies of TA conditionability. Between line differences in TA conditionability are maintained when an injection of ethanol is substituted for cyclophosphamide, the emetic-class agent used for line selection. TAR rats also self-administer much more ethanol and attain higher blood alcohol concentrations than TAP rats. Thus, genetically mediated differences in aversive aftereffects of alcohol may contribute to alcoholism risk potential. Consistent with clinical and preclinical literature, TAR rats have lower serotonin (5-HT) brain levels and less efficient 5-HT transport than alcohol adverse TAR rats. However, polygenetic control is likely and other systems merit study. An oligonucleotide probe array representing more than 1200 neuroscience relevant genes was used to measure TAP/ TAR expression differences in the amygdala 6 hours after an ip 1.25g/kg ethanol injection. Eighteen expression differences of 2-fold or greater (range = 88.5 to 2) were detected in the GABA, 5-HT, acetylcholine, and glutamate/aspartate systems. The results advance candidate genes to be targeted within molecular biological analyses of alcohol dependency risk factors and during attempts to develop new pharmacotherapies.

Original languageEnglish (US)
Number of pages1
JournalAmerican Journal of Medical Genetics - Neuropsychiatric Genetics
Volume105
Issue number7
StatePublished - Oct 8 2001

Fingerprint

Ethanol
Serotonin
Gene Expression
Brain
Alcohols
Emetics
Injections
Oligonucleotide Probes
Neurosciences
Amygdala
Oligonucleotide Array Sequence Analysis
Aspartic Acid
Cyclophosphamide
gamma-Aminobutyric Acid
Alcoholism
Genes
Acetylcholine
Glutamic Acid
Drug Therapy

ASJC Scopus subject areas

  • Genetics(clinical)
  • Psychiatry and Mental health
  • Cellular and Molecular Neuroscience

Cite this

Elkins, R. L., Edwards, G., Hobbs, S. H., Fei, Y. J., Stoming, T. A., Carl, G. F., & Rausch, J. L. (2001). Ethanol driven gene expression in TAP and TAR rat brains. American Journal of Medical Genetics - Neuropsychiatric Genetics, 105(7).

Ethanol driven gene expression in TAP and TAR rat brains. / Elkins, R. L.; Edwards, G.; Hobbs, Steve H; Fei, Y. J.; Stoming, T. A.; Carl, G. F.; Rausch, J. L.

In: American Journal of Medical Genetics - Neuropsychiatric Genetics, Vol. 105, No. 7, 08.10.2001.

Research output: Contribution to journalArticle

Elkins, RL, Edwards, G, Hobbs, SH, Fei, YJ, Stoming, TA, Carl, GF & Rausch, JL 2001, 'Ethanol driven gene expression in TAP and TAR rat brains', American Journal of Medical Genetics - Neuropsychiatric Genetics, vol. 105, no. 7.
Elkins RL, Edwards G, Hobbs SH, Fei YJ, Stoming TA, Carl GF et al. Ethanol driven gene expression in TAP and TAR rat brains. American Journal of Medical Genetics - Neuropsychiatric Genetics. 2001 Oct 8;105(7).
Elkins, R. L. ; Edwards, G. ; Hobbs, Steve H ; Fei, Y. J. ; Stoming, T. A. ; Carl, G. F. ; Rausch, J. L. / Ethanol driven gene expression in TAP and TAR rat brains. In: American Journal of Medical Genetics - Neuropsychiatric Genetics. 2001 ; Vol. 105, No. 7.
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