Striatal Hypodensities, Not White Matter Hypodensities on CT, Are Associated with Late-Onset Depression in Alzheimer's Disease

This study examined whether there were neuroanatomical differences evident on CT scans of individuals with dementia who differed on depression history. Neuroanatomical variables consisted of visual ratings of frontal lobe deep white matter, subcortical white matter, and subcortical gray matter hypod...

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Main Authors: Jessica A. Brommelhoff, Bryan M. Spann, John L. Go, Wendy J. Mack, Margaret Gatz
Format: Article
Language:English
Published: Wiley 2011-01-01
Series:Journal of Aging Research
Online Access:http://dx.doi.org/10.4061/2011/187219
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author Jessica A. Brommelhoff
Bryan M. Spann
John L. Go
Wendy J. Mack
Margaret Gatz
author_facet Jessica A. Brommelhoff
Bryan M. Spann
John L. Go
Wendy J. Mack
Margaret Gatz
author_sort Jessica A. Brommelhoff
collection DOAJ
description This study examined whether there were neuroanatomical differences evident on CT scans of individuals with dementia who differed on depression history. Neuroanatomical variables consisted of visual ratings of frontal lobe deep white matter, subcortical white matter, and subcortical gray matter hypodensities in the CT scans of 182 individuals from the Study of Dementia in Swedish Twins who were diagnosed with dementia and had information on depression history. Compared to individuals with Alzheimer's disease and no depression, individuals with Alzheimer's disease and late-onset depression (first depressive episode at age 60 or over) had a greater number of striatal hypodensities (gray matter hypodensities in the caudate nucleus and lentiform nucleus). There were no significant differences in frontal lobe deep white matter or subcortical white matter. These findings suggest that late-onset depression may be a process that is distinct from the neurodegenerative changes caused by Alzheimer's disease.
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spelling doaj-art-c09829dbe7b74e3b9f2d43349f45b22f2025-02-03T01:33:16ZengWileyJournal of Aging Research2090-22122011-01-01201110.4061/2011/187219187219Striatal Hypodensities, Not White Matter Hypodensities on CT, Are Associated with Late-Onset Depression in Alzheimer's DiseaseJessica A. Brommelhoff0Bryan M. Spann1John L. Go2Wendy J. Mack3Margaret Gatz4Department of Psychology, University of Southern California, Los Angeles, CA 90089, USADepartment of Neurology, University of Southern California, Los Angeles, CA 90033, USADepartment of Radiology, University of Southern California, Los Angeles, CA 90033, USADepartment of Preventive Medicine, University of Southern California, Los Angeles, CA 90089, USADepartment of Psychology, University of Southern California, Los Angeles, CA 90089, USAThis study examined whether there were neuroanatomical differences evident on CT scans of individuals with dementia who differed on depression history. Neuroanatomical variables consisted of visual ratings of frontal lobe deep white matter, subcortical white matter, and subcortical gray matter hypodensities in the CT scans of 182 individuals from the Study of Dementia in Swedish Twins who were diagnosed with dementia and had information on depression history. Compared to individuals with Alzheimer's disease and no depression, individuals with Alzheimer's disease and late-onset depression (first depressive episode at age 60 or over) had a greater number of striatal hypodensities (gray matter hypodensities in the caudate nucleus and lentiform nucleus). There were no significant differences in frontal lobe deep white matter or subcortical white matter. These findings suggest that late-onset depression may be a process that is distinct from the neurodegenerative changes caused by Alzheimer's disease.http://dx.doi.org/10.4061/2011/187219
spellingShingle Jessica A. Brommelhoff
Bryan M. Spann
John L. Go
Wendy J. Mack
Margaret Gatz
Striatal Hypodensities, Not White Matter Hypodensities on CT, Are Associated with Late-Onset Depression in Alzheimer's Disease
Journal of Aging Research
title Striatal Hypodensities, Not White Matter Hypodensities on CT, Are Associated with Late-Onset Depression in Alzheimer's Disease
title_full Striatal Hypodensities, Not White Matter Hypodensities on CT, Are Associated with Late-Onset Depression in Alzheimer's Disease
title_fullStr Striatal Hypodensities, Not White Matter Hypodensities on CT, Are Associated with Late-Onset Depression in Alzheimer's Disease
title_full_unstemmed Striatal Hypodensities, Not White Matter Hypodensities on CT, Are Associated with Late-Onset Depression in Alzheimer's Disease
title_short Striatal Hypodensities, Not White Matter Hypodensities on CT, Are Associated with Late-Onset Depression in Alzheimer's Disease
title_sort striatal hypodensities not white matter hypodensities on ct are associated with late onset depression in alzheimer s disease
url http://dx.doi.org/10.4061/2011/187219
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