Cited by 530Cerebrovascular and genetic disordersDementia and Cognitive Impairment ResearchNeurological Disease Mechanisms and Treatments

The DOI matches its Crossref record; 51 of the 51 references it cites were found in a registry or an index.

White matter lesions impair frontal lobe function regardless of their location

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Abstract

OBJECTIVE: To analyze the effect of white matter lesions in different brain regions on regional cortical glucose metabolism, regional cortical atrophy, and cognitive function in a sample with a broad range of cerebrovascular disease and cognitive function. METHODS: Subjects (n = 78) were recruited for a study of subcortical ischemic vascular disease (SIVD) and Alzheimer disease (AD) contributions to dementia. A new method was developed to define volumes of interest from high-resolution three-dimensional T1-weighted MR images. Volumetric measures of MRI segmented white matter signal hyperintensities (WMH) in five different brain regions were related to regional PET glucose metabolism (rCMRglc) in cerebral cortex, MRI measures of regional cortical atrophy, and neuropsychological assessment of executive and memory function. RESULTS: WMH was significantly higher in the prefrontal region compared to the other brain regions. In all subjects, higher frontal and parietal WMH were associated with reduced frontal rCMRglc, whereas occipitotemporal WMH was only marginally associated with frontal rCMRglc. These associations were stronger and more widely distributed in nondemented subjects where reduced frontal rCMRglc was correlated with WMH for all regions measured. In contrast, there was no relationship between WMH in any brain region and rCMRglc in either parietal or occipitotemporal regions. WMHs in all brain regions were associated with low executive scores in nondemented subjects. CONCLUSIONS: The frontal lobes are most severely affected by SIVD. WMHs are more abundant in the frontal region. Regardless of where in the brain these WMHs are located, they are associated with frontal hypometabolism and executive dysfunction.

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Metadata

Authors
Tullberg, M., Fletcher, E., DeCarli, C., Mungas, D., Reed, B. R., Harvey, D. J., Weiner, M. W., Chui, H. C., & Jagust, W. J.
Affiliations
University of California, San Francisco (US)
Venue
Neurology
Published
2004-07-27
Volume
63
Issue
2
Pages
246-253
ISSN
  • 0028-3878 (ISSN-L)
  • 1526-632X
OpenAlex
W2077066095
Cited by
530
References
51
Citations by year
2026: 13 · 2025: 11 · 2024: 12 · 2023: 17 · 2022: 16 · 2021: 19 · 2020: 27 · 2019: 27 · 2018: 17 · 2017: 21 · 2016: 24 · 2015: 30 · 2014: 32 · 2013: 36 · 2012: 25
FWCI
16.99
Type
journal article
Language
en
Open access
Locations
  • Neurology (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institute on Aging (P30AG010129, AG 12435, AG-10129, P01AG012435, P50AG023501)
  • National Institute of Neurological Disorders and Stroke (R01NS017950)
Topics
  • Health Sciences › Medicine › Clinical Neurology › Cerebrovascular and genetic disorders
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Life Sciences › Neuroscience › Neurology › Neurological Disease Mechanisms and Treatments
Keywords
white matter lesions, white matter hyperintensities, subcortical ischemic vascular disease, Alzheimer's disease, dementia, frontal lobe, regional cerebral glucose metabolism, frontal hypometabolism, cortical atrophy, executive function, memory, cerebrovascular disease, lesion localization
MeSH terms
Aged, Aged, 80 and over, Alzheimer Disease, Atrophy, Cognition Disorders, Female, Frontal Lobe, Glucose, Humans, Magnetic Resonance Imaging, Male, Memory Disorders, Myelin Sheath, Neuropsychological Tests, Dementia, Vascular, Positron-Emission Tomography

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