Histone Deacetylase Gene Expression Following Binge Alcohol Consumption in Rats and Humans



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López Moreno, José Antonio and Marcos, Miguel and Calleja Conde, Javier and Echeverry-Alzate, Victor and Buhler, Kora M. and Costa-Alba, Pilar and Bernardo, Edgar and Laso, Francisco Javier and Rodríguez de Fonseca, Fernando and Nadal, Rose and Viveros, María Paz and Maldonado, Rafael and Giné Domínguez, Elena (2015) Histone Deacetylase Gene Expression Following Binge Alcohol Consumption in Rats and Humans. Alcoholism: Clinical and Experimental Research, 39 (10). pp. 1939-1950. ISSN 0145-6008, ESSN: 1530-0277

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Official URL: http://onlinelibrary.wiley.com/doi/10.1111/acer.12850/full


Background: Alcohol binge drinking is one of the most common patterns of excessive alcohol use and recent data would suggest that histone deacetylases (HDACs) gene expression profiling could be useful as a biomarker for psychiatric disorders.
Methods: This study aimed to characterize the gene expression patterns of Hdac 1–11 in samples of rat peripheral blood, liver, heart, prefrontal cortex, and amygdala following repeated binge alcohol consumption and to determine the parallelism of Hdac gene expression between rats and humans in peripheral blood. To accomplish this goal, we examined Hdac gene expression following 1, 4, or 8 alcohol binges (3 g/kg, orally) in the rat, in patients who were admitted to the hospital emergency department for acute alcohol intoxication, and in rats trained in daily operant alcohol self-administration.
Results: We primarily found that acute alcohol binging reduced gene expression (Hdac1–10) in the peripheral blood of alcohol-na€ıve rats and that this effect was attenuated following repeated alcohol binges. There was also a reduction of Hdac gene expression in the liver (Hdac2,4,5), whereas there was increased expression in the heart (Hdac1,7,8) and amygdala (Hdac1,2,5). Additionally, increased blood alcohol concentrations were measured in rat blood at 1 to 4 hours following repeated alcohol binging, and the only group that developed hepatic steotosis (fatty liver) were those animals exposed to 8 alcohol binge events. Finally, both binge consumption of alcohol in humans and daily operant alcohol self-administration in rats increased Hdac gene expression in peripheral blood.
Conclusions: Our results suggest that increases in HDAC gene expression within the peripheral blood are associated with chronic alcohol consumption, whereas HDAC gene expression is reduced following initial exposure to alcohol.

Item Type:Article
Uncontrolled Keywords:Histone Deacetylases; Gene Expression; Alcohol Binge; Human and Rat; Translational Research
Subjects:Medical sciences > Biology > Animal physiology
ID Code:42649
Deposited On:11 May 2017 07:10
Last Modified:11 May 2017 07:32

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