Wernicke-Korsakoff syndrome in chronic alcoholics is caused by a deficiency of

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Wernicke-Korsakoff syndrome is caused by a deficiency of vitamin B₁ (thiamine). Wernicke encephalopathy is characterized by ophthalmoplegia, nystagmus, ataxia of gait, mental confusion, apathy, listlessness, and disorientation. Korsakoff psychosis is marked by a loss of remote memory, inability to acquire new information, and confabulation.

Wernicke-Korsakoff Syndrome in Chronic Alcoholics Is Caused by a Deficiency