Research Projects
Neurosteroid and Ethanol Interactions (MERIT Award):
The major goal of this project is to investigate the role of neuroactive steroids in ethanol action, tolerance and dependence.
Mechanisms of Addiction Pathogenesis
The major goal of this project is to determine the molecular mechanisms that underlie chronic ethanol-induced adaptations of GABA-A receptors in brain and cultured cerebral cortical neurons.
Stress, Alcohol and GABAergic Neuroactive Steroids:
The objective of this project is to elucidate the role of neuroactive steroids in the link between stress and excessive alcohol intake, including studies of neuroadaptive changes caused by chronic alcohol exposure.
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Center Line Articles
Recent Publications
Click here for a full list of publications from PubMed
Genetic Analysis of the Neurosteroid Deoxycorticosterone and Its Relation to Alcohol Phenotypes: Identification of QTLs and Downstream Gene Regulation. Porcu P, O'Buckley TK, Song SC, Harenza JL, Lu L, Wang X, Williams RW, Miles MF, Morrow AL. PLoS One. 2011 Apr 8;6(4):e18405.
PKCγ is required for ethanol-induced increases in GABA(A) receptor α4 subunit expression in cultured cerebral cortical neurons. Werner DF, Kumar S, Criswell HE, Suryanarayanan A, Fetzer JA, Comerford CE, Morrow AL. J Neurochem. 2011 Feb;116(4):554-63.
Pregnenolone and ganaxolone reduce operant ethanol self-administration in alcohol-preferring p rats. Besheer J, Lindsay TG, O'Buckley TK, Hodge CW, Morrow AL. Alcohol Clin Exp Res. 2010 Dec;34(12):2044-52.
Chronic ethanol exposure produces tolerance to elevations in neuroactive steroids: mechanisms and reversal by exogenous ACTH. Boyd KN, Kumar S, O'Buckley TK, Morrow AL. J Neurochem. 2010 Oct;115(1):142-52.
Naltrexone Selectively Elevates GABAergic Neuroactive Steroid Levels in Heavy Drinkers With the ASP40 Allele of the OPRM1 Gene: A Pilot Investigation. Ray LA, Hutchison KE, Ashenhurst JR, Morrow AL. Alcohol Clin Exp Res. 2010 Aug;34(8):1479-87.
Ethanol reduces GABAA alpha1 subunit receptor surface expression by a protein kinase Cgamma-dependent mechanism in cultured cerebral cortical neurons. Kumar S, Suryanarayanan A, Boyd KN, Comerford CE, Lai MA, Ren Q, Morrow AL. Mol Pharmacol. 2010 May;77(5):793-803.
Ethanol induction of steroidogenesis in rat adrenal and brain is dependent upon pituitary ACTH release and de novo adrenal StAR synthesis. Boyd KN, Kumar S, O'Buckley TK, Porcu P, Morrow AL. J Neurochem. 2010 Feb;112(3):784-96.
The effects of acute and chronic ethanol exposure on presynaptic and postsynaptic gamma-aminobutyric acid (GABA) neurotransmission in cultured cortical and hippocampal neurons. Fleming RL, Manis PB, Morrow AL. Alcohol. 2009 Dec;43(8):603-18.
The role of neuroactive steroids in ethanol/stress interactions: proceedings of symposium VII at the Volterra conference on alcohol and stress, Morrow AL, Biggio G, Serra M, Becker HC, Lopez MF, Porcu P, Alward SE, O'Buckley TK. Alcohol. 2009 Nov;43(7):521-30.
The role of GABA(A) receptors in the acute and chronic effects of ethanol: a decade of progress. Kumar S, Porcu P, Werner DF, Matthews DB, Diaz-Granados JL, Helfand RS, Morrow AL. Psychopharmacology (Berl). 2009 Sep;205(4):529-64.
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