Sex differences in grey matter atrophy patterns among AD and aMCI patients: Results from ADNI

Martha Skup, Hongtu Zhu, Yaping Wang, Kelly S. Giovanello, Ja an Lin, Dinggang Shen, Feng Shi, Wei Gao, Weili Lin, Yong Fan, Heping Zhang

Research output: Contribution to journalArticle

48 Citations (Scopus)

Abstract

We used longitudinal magnetic resonance imaging (MRI) data to determine whether there are any gender differences in grey matter atrophy patterns over time in 197 individuals with probable Alzheimer's disease (AD) and 266 with amnestic mild cognitive impairment (aMCI), compared with 224 healthy controls participating in the Alzheimer's Disease Neuroimaging Initiative (ADNI). While previous research has differentiated probable AD and aMCI groups from controls in brain atrophy, it is unclear whether and how sex plays a role in patterns of change over time. Using regional volumetric maps, we fit longitudinal models to the grey matter data collected at repeated occasions, seeking differences in patterns of volume change over time by sex and diagnostic group in a voxel-wise analysis. Additionally, using a region-of-interest approach, we fit longitudinal models to the global volumetric data of predetermined brain regions to determine whether this more conventional approach is sufficient for determining sex and group differences in atrophy. Our longitudinal analyses revealed that, of the various grey matter regions investigated, males and females in the AD group and the aMCI group showed different patterns of decline over time compared to controls in the bilateral precuneus, bilateral caudate nucleus, right entorhinal gyrus, bilateral thalamus, bilateral middle temporal gyrus, left insula, and right amygdala. As one of the first investigation to model more than two time points of structural MRI data over time, our findings add insight into how AD and aMCI males and females differ from controls and from each other over time.

Original languageEnglish
Pages (from-to)890-906
Number of pages17
JournalNeuroImage
Volume56
Issue number3
DOIs
Publication statusPublished - 2011 Jun 1
Externally publishedYes

Fingerprint

Neuroimaging
Sex Characteristics
Atrophy
Alzheimer Disease
Magnetic Resonance Imaging
Parietal Lobe
Caudate Nucleus
Brain
Temporal Lobe
Gray Matter
Cognitive Dysfunction
Amygdala
Thalamus
Control Groups
Research

Keywords

  • Alzheimer's disease
  • GEE
  • Longitudinal MRI
  • Mild cognitive impairment
  • Sex differences

ASJC Scopus subject areas

  • Cognitive Neuroscience
  • Neurology

Cite this

Sex differences in grey matter atrophy patterns among AD and aMCI patients : Results from ADNI. / Skup, Martha; Zhu, Hongtu; Wang, Yaping; Giovanello, Kelly S.; Lin, Ja an; Shen, Dinggang; Shi, Feng; Gao, Wei; Lin, Weili; Fan, Yong; Zhang, Heping.

In: NeuroImage, Vol. 56, No. 3, 01.06.2011, p. 890-906.

Research output: Contribution to journalArticle

Skup, M, Zhu, H, Wang, Y, Giovanello, KS, Lin, JA, Shen, D, Shi, F, Gao, W, Lin, W, Fan, Y & Zhang, H 2011, 'Sex differences in grey matter atrophy patterns among AD and aMCI patients: Results from ADNI', NeuroImage, vol. 56, no. 3, pp. 890-906. https://doi.org/10.1016/j.neuroimage.2011.02.060
Skup, Martha ; Zhu, Hongtu ; Wang, Yaping ; Giovanello, Kelly S. ; Lin, Ja an ; Shen, Dinggang ; Shi, Feng ; Gao, Wei ; Lin, Weili ; Fan, Yong ; Zhang, Heping. / Sex differences in grey matter atrophy patterns among AD and aMCI patients : Results from ADNI. In: NeuroImage. 2011 ; Vol. 56, No. 3. pp. 890-906.
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