title: Lithium and risk for Alzheimer's disease in elderly patients with bipolar disorder.
abstract: Bipolar disorder is associated with increased risk for dementia. We compared the prevalence of Alzheimer's disease between 66 elderly euthymic patients with bipolar disorder who were on chronic lithium therapy and 48 similar patients without recent lithium therapy. The prevalence of dementia in the whole sample was 19% v. 7% in an age-comparable population. Alzheimer's disease was diagnosed in 3 patients (5%) on lithium and in 16 patients (33%) who were not on lithium (P<0.001). Our case-control data suggest that lithium treatment reduced the prevalence of Alzheimer's disease in patients with bipolar disorder to levels in the general elderly population. This is in accordance with reports that lithium inhibits crucial processes in the pathogenesis of Alzheimer's disease.
authors.affiliation: Department and Institute of Psychiatry,Faculty of Medicine, University of Sao Paulo, Sao Paulo, Brazil.
authors.forename: Paula V
authors.initials: PV
authors.lastname: Nunes
authors.forename: Orestes V
authors.initials: OV
authors.lastname: Forlenza
authors.forename: Wagner F
authors.initials: WF
authors.lastname: Gattaz
mesh_terms: D000368:Aged; D000544:Alzheimer Disease / Q000517:prevention & control*; D000928:Antidepressive Agents / Q000627:therapeutic use*; D001714:Bipolar Disorder / Q000188:drug therapy*; D016022:Case-Control Studies; D005260:Female; D006801:Humans; D018020:Lithium Compounds / Q000627:therapeutic use*; D008297:Male; D008875:Middle Aged; D012307:Risk Factors
chemical_list: D000928:Antidepressive Agents; D018020:Lithium Compounds