Cardiovascular risk factors and cerebral atrophy in a middle-aged cohort

David S Knopman, Thomas H. Mosley, Diane J. Catellier, A. Richey Sharrett

Research output: Contribution to journalArticle

83 Citations (Scopus)

Abstract

Background: Because cardiovascular (CV) risk factors have been associated with declines in cognitive functions and late life dementia, CV risk factors should also be associated with brain atrophy. Objective: To study the association of CV risk factors with ventricular size (VS) and sulcal size (SS) in the middle-aged and young-elderly Atherosclerosis Risk in Communities (ARIC) Study cohort. Methods: Cerebral MRI was performed on 1,812 individuals (aged 50 to 73 [mean 62.3] years, 60% women, 50% African American) with no history of stroke or TIA from the ARIC cohort at study sites in Forsyth County, NC, and Jackson, MS. Neuroradiologists rated VS and SS using a semiquantitative, 10-point scale by visual comparison with a standardized reference atlas. CV risk factors were assessed approximately 6 years prior to the MR scan. The authors performed multivariate analyses to assess the independent relationship between CV risk factors and the two measures of brain atrophy. Results: Logistic regression models controlling for age, sex, race, and alcohol use found that the association between diabetes and VS is as follows: OR = 1.63, 95% CI: 1.19 to 2.24; p = 0.003. Increasing levels of fasting blood glucose also showed an association with greater VS (OR = 1.07, 95% CI: 1.03 to 1.10; p = 0.001, for each 10 mg/dL of blood glucose). No other CV risk factors were associated with greater VS or SS. Conclusions: In this middle-aged and young-elderly cohort, diabetes mellitus was associated with greater ventricular size. Mechanisms for deterioration of brain structural integrity may include microvascular, amyloidogenic, or other not-yet-defined effects of diabetes mellitus.

Original languageEnglish (US)
Pages (from-to)876-881
Number of pages6
JournalNeurology
Volume65
Issue number6
DOIs
StatePublished - Sep 27 2005

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Atrophy
Blood Glucose
Atherosclerosis
Diabetes Mellitus
Brain
Cohort Studies
Logistic Models
Atlases
African Americans
Cognition
Dementia
Fasting
Multivariate Analysis
Stroke
Alcohols

ASJC Scopus subject areas

  • Neuroscience(all)

Cite this

Cardiovascular risk factors and cerebral atrophy in a middle-aged cohort. / Knopman, David S; Mosley, Thomas H.; Catellier, Diane J.; Sharrett, A. Richey.

In: Neurology, Vol. 65, No. 6, 27.09.2005, p. 876-881.

Research output: Contribution to journalArticle

Knopman, David S ; Mosley, Thomas H. ; Catellier, Diane J. ; Sharrett, A. Richey. / Cardiovascular risk factors and cerebral atrophy in a middle-aged cohort. In: Neurology. 2005 ; Vol. 65, No. 6. pp. 876-881.
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