Huntington's disease and alcohol abuse.

The dopamine, glutamate and GABA systems are known to mediate the effects of alcohol on the movement disorders, though their exact roles are not clear. Thus, use of alcohol has implications for pathogenesis as well as management of the movement disorders. These implications are discussed citing a patient who had a strong family history of Huntington's disease and in whom movement disorder and behavioral problems were manifest under alcohol use and withdrawal, but not while being abstinent.