Adolescent binge drinking modifies gene expression in a fashion that increases susceptibility to anxiety and alcohol use disorders in adulthood, according to research in rats recently published in eNeuro. Targeting the microRNAs responsible could be a new route for undoing the damage of alcohol use caused during adolescence.

Previous researchers found that microRNA, small bits of RNA that modify how genes are expressed rather than coding for a protein, are involved in how early-life alcohol exposure changes the brain, but the exact mechanism was unknown.

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