Cited by 170Dementia and Cognitive Impairment ResearchCerebrovascular and genetic disordersAlzheimer's disease research and treatments

White matter hyperintensity topography in Alzheimer's disease and links to cognition

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Garnier‐Crussard, Antoine, Bougacha, Salma, Wirth, Miranka, Dautricourt, Sophie, Sherif, Siya, Landeau, Brigitte, Gonneaud, Julie, De Flores, Robin +4 more·2022·Alzheimer's & Dementia

Abstract

Introduction: White matter hyperintensities (WMH) are often described in Alzheimer's disease (AD), but their topography and specific relationships with cognition remain unclear. Methods: Regional WMH were estimated in 54 cognitively impaired amyloid beta–positive AD (Aβpos‐AD), compared to 40 cognitively unimpaired amyloid beta–negative older controls (Aβneg‐controls) matched for vascular risk factors. The cross‐sectional association between regional WMH volume and cognition was assessed within each group, controlling for cerebral amyloid burden, global cortical atrophy, and hippocampal atrophy. Results: WMH volume was larger in Aβpos‐AD compared to Aβneg‐controls in all regions, with the greatest changes in the splenium of the corpus callosum (S‐CC). In Aβpos‐AD patients, larger total and regional WMH volume, especially in the S‐CC, was strongly associated with decreased cognition. Discussion: WMH specifically contribute to lower cognition in AD, independently from amyloid deposition and atrophy. This study emphasizes the clinical relevance of WMH in AD, especially posterior WMH, and most notably S‐CC WMH.

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Authors
Garnier‐Crussard, A., Bougacha, S., Wirth, M., Dautricourt, S., Sherif, S., Landeau, B., Gonneaud, J., De Flores, R., de la Sayette, V., Vivien, D., Krolak‐Salmon, P., & Chételat, G.
Affiliations
  • Inserm (FR)
  • German Center for Neurodegenerative Diseases (DZNE) Dresden (DE)
  • Normandie Univ UNICAEN INSERM U1237 PhIND “Physiopathology and Imaging of Neurological Disorders,” Institut Blood and Brain @ Caen‐Normandie Cyceron Caen France
  • Department of Neurology CHU de Caen Caen France
  • Centre National de la Recherche Scientifique (FR)
Corresponding author
Chételat, Gaël
Venue
Alzheimer's & Dementia
Publisher
Wiley
Published
2021-07-28
Volume
18
Issue
3
Pages
422-433
ISSN
  • 1552-5260 (ISSN-L)
  • 1552-5279
OpenAlex
W3183402156
Cited by
170
References
90
Citations by year
2026: 30 · 2025: 39 · 2024: 48 · 2023: 36 · 2022: 16 · 2021: 1
FWCI
18.12
Type
journal article
Language
en
Open access
Locations
  • Alzheimer s & Dementia (publishedVersion, cc-by-nc)
  • PubMed Central (publishedVersion, cc-by-nc)
  • PubMed (publishedVersion)
  • HAL (submittedVersion, other-oa)
  • DZNE Pub (submittedVersion, cc-by-nc)
Funders
  • Agence Nationale de la Recherche (ANR LONGVIE 2007)
  • Fondation Plan Alzheimer (2008‐2012)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Health Sciences › Medicine › Neurology › Cerebrovascular and genetic disorders
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
Keywords
white matter hyperintensities, Alzheimer's disease
MeSH terms
Alzheimer Disease, Atrophy, Cognition, Cross-Sectional Studies, Humans, Magnetic Resonance Imaging, Amyloid beta-Peptides, White Matter

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