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Sensitivity to alcohol odors may indicate a genetic predisposition to alcohol dependence

ScienceDaily  – Prior research had found an association between DNA sequence variations in a gene that encodes parts of the brain‘s gamma-amino butyric acid (GABA)-A receptors (the GABRA2 gene) and alcohol dependence. New research has found that the GABRA2 genotype can also affect the brain’s reward responses to cues such as alcohol odors. … > read full article