Use of diuretics is associated with reduced risk of Alzheimer's disease: the Cache County Study.

TitleUse of diuretics is associated with reduced risk of Alzheimer's disease: the Cache County Study.
Publication TypeJournal Article
Year of Publication2014
AuthorsChuang Y-F, Breitner JCS, Chiu Y-L, Khachaturian A, Hayden K, Corcoran C, Tschanz J, Norton M, Munger R, Welsh-Bohmer K, Zandi PP
Corporate AuthorsCache County Investigators
JournalNeurobiol Aging
Volume35
Issue11
Pagination2429-35
Date Published2014 Nov
ISSN1558-1497
KeywordsAged, Aged, 80 and over, Alzheimer Disease, Antihypertensive Agents, Cohort Studies, Diuretics, Potassium Sparing, Female, Follow-Up Studies, Humans, Incidence, Male, Risk, Sodium Chloride Symporter Inhibitors
Abstract

Although the use of antihypertensive medications has been associated with reduced risk of Alzheimer's disease (AD), it remains unclear which class provides the most benefit. The Cache County Study of Memory Health and Aging is a prospective longitudinal cohort study of dementing illnesses among the elderly population of Cache County, Utah. Using waves I to IV data of the Cache County Study, 3417 participants had a mean of 7.1 years of follow-up. Time-varying use of antihypertensive medications including different class of diuretics, angiotensin converting enzyme inhibitors, β-blockers, and calcium channel blockers was used to predict the incidence of AD using Cox proportional hazards analyses. During follow-up, 325 AD cases were ascertained with a total of 23,590 person-years. Use of any antihypertensive medication was associated with lower incidence of AD (adjusted hazard ratio [aHR], 0.77; 95% confidence interval [CI], 0.61-0.97). Among different classes of antihypertensive medications, thiazide (aHR, 0.7; 95% CI, 0.53-0.93), and potassium-sparing diuretics (aHR, 0.69; 95% CI, 0.48-0.99) were associated with the greatest reduction of AD risk. Thiazide and potassium-sparing diuretics were associated with decreased risk of AD. The inverse association of potassium-sparing diuretics confirms an earlier finding in this cohort, now with longer follow-up, and merits further investigation.

DOI10.1016/j.neurobiolaging.2014.05.002
Alternate JournalNeurobiol. Aging
PubMed ID24910391
PubMed Central IDPMC4366136
Grant ListR01 AG011380 / AG / NIA NIH HHS / United States
R01 AG11380 / AG / NIA NIH HHS / United States