How to Quit Drinking, for Now or Forever
Chemical messengers called neuromodulators modify the effects of neurotransmitters. Researchers currently are trying to determine whether alcoholics with abnormal serotonin metabolite levels have specific variations in the gene that codes for the enzyme tryptophan hydroxylase, which produces serotonin from other molecules in how does alcohol affect dopamine the cells. Several variants of the tryptophan hydroxylase gene exist; one variant appears