Brain function and cognition in a community sample of elderly Latinos

W. J. Jagust, J. L. Eberling, C. C. Wu, A. Finkbeiner, Dan M Mungas, P. E. Valk, M. N. Haan

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

Background: Previous studies using PET to measure cerebral glucose metabolism in AD have found metabolic reductions in the temporoparietal and posterior cingulate cortices in individuals with dementia and those at risk of developing it. This study was designed to extend this finding to individuals selected from a population-based cohort of Mexican Americans with a wide spectrum of cognitive ability. Methods: A group of 93 individuals was selected from the Sacramento Area Latino Study on Aging, and subjects were categorized into four groups of increasing levels of cognitive impairment: normal, memory impaired, cognitively impaired but not demented (CIND), and demented. PET was performed with the tracer [18F]-fluorodeoxyglucose, and data were analyzed with both statistical parametric mapping and an atrophy-corrected volume of interest approach. Results: Individuals with dementia had metabolic reductions that were most robust in the posterior cingulate cortex, whereas CIND subjects had less statistically robust reductions in the posterior cingulate cortex. Cingulate hypometabolism increased the risk of dementia and was a significant risk factor for dementia in logistic regression models that also incorporated MR measures of hippocampal volume and white matter hyperintensities. Conclusion: Posterior cingulate cortical hypometabolism is clearly detected in individuals with dementia who are selected from a population with lower education and a high prevalence of cerebrovascular risk factors, supporting the generalizability of this finding. These metabolic reductions occur prior to the onset of dementia but only in those persons with relatively advanced symptoms.

Original languageEnglish (US)
Pages (from-to)378-383
Number of pages6
JournalNeurology
Volume59
Issue number3
StatePublished - Aug 13 2002

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Hispanic Americans
Cognition
Dementia
Gyrus Cinguli
Brain
Logistic Models
Aptitude
Fluorodeoxyglucose F18
Population
Atrophy
Education
Glucose

ASJC Scopus subject areas

  • Neuroscience(all)

Cite this

Jagust, W. J., Eberling, J. L., Wu, C. C., Finkbeiner, A., Mungas, D. M., Valk, P. E., & Haan, M. N. (2002). Brain function and cognition in a community sample of elderly Latinos. Neurology, 59(3), 378-383.

Brain function and cognition in a community sample of elderly Latinos. / Jagust, W. J.; Eberling, J. L.; Wu, C. C.; Finkbeiner, A.; Mungas, Dan M; Valk, P. E.; Haan, M. N.

In: Neurology, Vol. 59, No. 3, 13.08.2002, p. 378-383.

Research output: Contribution to journalArticle

Jagust, WJ, Eberling, JL, Wu, CC, Finkbeiner, A, Mungas, DM, Valk, PE & Haan, MN 2002, 'Brain function and cognition in a community sample of elderly Latinos', Neurology, vol. 59, no. 3, pp. 378-383.
Jagust WJ, Eberling JL, Wu CC, Finkbeiner A, Mungas DM, Valk PE et al. Brain function and cognition in a community sample of elderly Latinos. Neurology. 2002 Aug 13;59(3):378-383.
Jagust, W. J. ; Eberling, J. L. ; Wu, C. C. ; Finkbeiner, A. ; Mungas, Dan M ; Valk, P. E. ; Haan, M. N. / Brain function and cognition in a community sample of elderly Latinos. In: Neurology. 2002 ; Vol. 59, No. 3. pp. 378-383.
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