White matter lesions are associated with cortical atrophy more than entorhinal and hippocampal atrophy

An Tao Du, Norbert Schuff, Linda L. Chao, John Kornak, Frank Ezekiel, William J. Jagust, Joel H. Kramer, Bruce R Reed, Bruce L. Miller, David Norman, Helena C. Chui, Michael W. Weiner

Research output: Contribution to journalArticle

85 Scopus citations

Abstract

The goal of this study was to examine the relationship between subcortical vascular disease and brain atrophy in patients with Alzheimer's disease (AD) and mixed dementia (i.e., AD and subcortical vascular disease together). MRI was performed on 77 cognitively normal (CN) subjects, 50 AD and 13 mixed dementia patients. Subcortical vascular disease was determined by white matter hyperintensities (WMH) volume and presence of subcortical lacunes. Brain atrophy was measured using total brain cortical gray matter (CGM), entorhinal cortex (ERC) and hippocampal volumes. CGM volume, but not ERC or hippocampal volume was inversely related to WMH volume in patients and controls. In contrast, no relationship was detected between CGM, ERC, or hippocampal volumes and subcortical lacunes. Furthermore, no interaction was found between WMH and diagnosis on cortical atrophy, implying that WMH affect cortical atrophy indifferently of group. These results suggest that subcortical vascular disease, manifested as WMH, may affect cortical atrophy more than ERC and hippocampal atrophy. Further, AD pathology and subcortical vascular disease may independently affect cortical atrophy.

Original languageEnglish (US)
Pages (from-to)553-559
Number of pages7
JournalNeurobiology of Aging
Volume26
Issue number4
DOIs
StatePublished - Apr 2005

Keywords

  • Alzheimer's disease
  • Subcortical lacunes
  • Subcortical vascular disease
  • The cortex
  • The entorhinal cortex
  • The hippocampus
  • White matter hyperintensities

ASJC Scopus subject areas

  • Clinical Neurology
  • Biological Psychiatry
  • Developmental Neuroscience
  • Neurology
  • Psychology(all)

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    Du, A. T., Schuff, N., Chao, L. L., Kornak, J., Ezekiel, F., Jagust, W. J., Kramer, J. H., Reed, B. R., Miller, B. L., Norman, D., Chui, H. C., & Weiner, M. W. (2005). White matter lesions are associated with cortical atrophy more than entorhinal and hippocampal atrophy. Neurobiology of Aging, 26(4), 553-559. https://doi.org/10.1016/j.neurobiolaging.2004.05.002