Uric acid and dementia in community-dwelling older persons

Carmelinda Ruggiero, Antonio Cherubini, Fulvio Lauretani, Stefania Bandinelli, Marcello Maggio, Angelo Di Iorio, Giovanni Zuliani, Charalampos Dragonas, Umberto Senin, Luigi Ferrucci

Research output: Contribution to journalArticlepeer-review

Abstract

Background: The biological action of uric acid (UA) in humans is controversial. UA is considered an antioxidant compound, but preclinical evidence suggests a proinflammatory action. Epidemiological studies found that hyperuricemia is associated with conditions leading to dementia. Our aim is to investigate the relationship between UA levels and dementia in older persons. Methods: Cross-sectional study performed in 1,016 community-dwelling older persons participating in the InCHIANTI study. Participants underwent determination of circulating UA levels and neuropsychological evaluation. A multivariate logistic regression model was used to estimate the probability of participants belonging to the highest and middle UA tertile to be affected by dementia compared to those in the lowest tertile. Results: Demented persons had higher UA levels (p = 0.001) and the prevalence of persons affected by dementia increased across UA tertiles (p <0.0001). Independent of several confounders, persons belonging to the highest UA tertile had a threefold (OR = 3.32; 95% CI: 1.06-10.42) higher probability to suffer from a dementia syndrome while those in the middle UA tertile tended to have a higher probability of being demented compared to those in the lowest tertile. Conclusion: In a population-based sample, high circulating UA levels are associated with an increased likelihood to be affected by a dementia syndrome.

Original languageEnglish
Pages (from-to)382-389
Number of pages8
JournalDementia and Geriatric Cognitive Disorders
Volume27
Issue number4
DOIs
Publication statusPublished - Apr 2009

Keywords

  • Aging
  • Dementia
  • Inflammation
  • Risk
  • Uric acid

ASJC Scopus subject areas

  • Psychiatry and Mental health
  • Geriatrics and Gerontology
  • Cognitive Neuroscience

Fingerprint Dive into the research topics of 'Uric acid and dementia in community-dwelling older persons'. Together they form a unique fingerprint.

Cite this