<prompt> The nucleus involved in Alzheimers disease is -Basal nucleus of MayernetRaphe nucleusSuperior salivary nucleusBasal lobe of cerebellum  <response>: Alzheimer disease Alzheimer disease AD is the most common cause of dementia in the elderly.Alzheimers disease is associated with a decrease in cerebral cortical levels of Acetylcholine.Reduction of Acetylcholine is related to degeneration of cholinergic neurons that project to many areas of cortex.This degeneration occurs in the nucleus basalis of Mayernet. 