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Regional white matter volume differences in nondemented aging and Alzheimer's disease
2009
NeuroImage
Accumulating evidence suggests that altered cerebral white matter (WM) influences normal aging, and further that WM degeneration may modulate the clinical expression of Alzheimer's disease (AD). ...
Here we conducted a study of differences in WM volume across the adult age span and in AD employing a newly developed, automated method for regional parcellation of the subcortical WM that uses curvature ...
Martinos Center for Biomedical Imaging, NINR NR010827, NIA AG024898, AG05886, AG05681, HHMI, HBP NS39581 and RR14075. We thank the Washington University ADRC for making MRI data available. ...
doi:10.1016/j.neuroimage.2008.10.030
pmid:19027860
pmcid:PMC2810540
fatcat:kn7y35752vdpfpuer2hfinoj5i
Frontal-Hippocampal Double Dissociation Between Normal Aging and Alzheimer's Disease
2004
Cerebral Cortex
A separate process, ubiquitous in aging, affects brain white matter with an anteriorto-posterior gradient and may underlie the executive difficulties common in aging. ...
Controversy persists regarding whether Alzheimer's disease (AD) is a distinct entity or instead exists on a continuum with nondemented aging. ...
aging may be relatively greater in anterior regions (gray and white matter) and striatal structures. ...
doi:10.1093/cercor/bhh174
pmid:15371293
fatcat:6unl4fmhcrcghcx34qqlwnso74
Hippocampal degeneration is associated with temporal and limbic gray matter/white matter tissue contrast in Alzheimer's disease
2011
NeuroImage
Recent studies have demonstrated alterations in cortical gray to white matter tissue contrast with nondemented aging and in individuals with Alzheimer's disease (AD). ...
Decreases in tissue contrast were associated with hippocampal volume, however, the regional patterns of these associations differed for demented and nondemented individuals. ...
Randy Buckner for his comments on this work, and for his support in the use of the OASIS dataset: Grants P50 AG05681, P01 AG03991, R01 AG021910, P50 MH071616, U24 RR021382, R01 MH56584. ...
doi:10.1016/j.neuroimage.2010.10.034
pmid:20965261
pmcid:PMC3021138
fatcat:mgnt7js35ndedavirbctmcymba
Insulin is differentially related to cognitive decline and atrophy in Alzheimer's disease and aging
2012
Biochimica et Biophysica Acta - Molecular Basis of Disease
We assessed the relationship of insulin resistance with cognitive decline and brain atrophy over two years in early Alzheimer's disease (AD, n = 48) and nondemented controls (n = 61). ...
This article is part of a Special Issue entitled: Imaging Brain Aging and Neurodegenerative disease. ...
Acknowledgements This study was supported by grants R03 AG026374 and R21 AG029615 from the National Institutes of Aging, K23NS058252 from the National Institute on Neurological Disorders and Stroke, and ...
doi:10.1016/j.bbadis.2011.06.011
pmid:21745566
pmcid:PMC3264795
fatcat:jfhqn6ihujabfc6bhnuhzhbhju
Memory and Executive Function in Aging and AD
2004
Neuron
Aging 17, 85-100. orders in aging and age-related diseases. . Double disrelated differences in neural activity during memory encoding and sociation between item and source memory. ...
Severe memory impairment, such as experi-to white matter change, atrophy, and certain forms of neurotransmitter depletion. ...
Several DTI studies note age-associated differences in Remembering source information and temporal details white matter that are present in nondemented aging and of past episodes appears to be particularly ...
doi:10.1016/j.neuron.2004.09.006
pmid:15450170
fatcat:btrivvso3je5harievyvnkeuru
Impact of APOE on the Healthy Aging Brain: A Voxel-Based MRI and DTI Study
2009
Journal of Alzheimer's Disease
In conclusion, the presence of an APOEε4 allele in nondemented older adults is associated with decreases in cognition and gray and white matter changes in the medial temporal cortex. ...
To date, few studies have used automated morphological analysis techniques to assess APOEε4-related brain structure change in both gray and white matter in nondemented older adults. ...
Acknowledgments This study was supported by grants R03 AG026374 and R21 AG029615 from the National Institutes of Aging and K23NS058252 from the National Institute on Neurological Disorders and Stroke. ...
doi:10.3233/jad-2009-1163
pmid:19584447
pmcid:PMC2892293
fatcat:jmllx46xajb6bpumkn6b4vlzn4
Cardiorespiratory Fitness and Preserved Medial Temporal Lobe Volume in Alzheimer Disease
2009
Alzheimer Disease and Associated Disorders
Exercise and cardiorespiratory (CR) fitness may moderate age-related regional brain changes in nondemented (ND) older adults. ...
We analyzed the relationship of CR fitness with white and gray matter within groups, assessed fitness-related brain volume change in areas most affected by AD-related atrophy, and then analyzed differential ...
Acknowledgments This study was supported by grants R03AG026374 and R21 AG029615 from the National Institutes of Aging and K23NS058252 from the National Institute on Neurological Disorders and Stroke. ...
doi:10.1097/wad.0b013e31819cb8a2
pmid:19812458
pmcid:PMC2760037
fatcat:ixn42aaxezdm7hwknykcgdludu
Cortical thickness is associated with different apolipoprotein E genotypes in healthy elderly adults
2010
Neuroscience Letters
Data collection and sharing for this project was funded by the Alzheimer's Disease Neuroimaging Initiative (ADNI) (National Institutes of Health Grant U01 AG024904). ...
The grantee organization is the Northern California Institute for Research and Education, and the study is coordinated by the Alzheimer's Disease Cooperative Study at the University of California, San ...
To ensure the accuracy of the segmentation, we manually checked the interface between the grey matter and white matter as well as the one between the white matter and the cerebrospinal fluid (CSF), and ...
doi:10.1016/j.neulet.2010.05.092
pmid:20573574
pmcid:PMC2954463
fatcat:gy6gwl3k7rdlbc4zypyntonuw4
Neural Correlates of Impaired Functional Independence in Early Alzheimer's Disease
2010
Journal of Alzheimer's Disease
Cognitive and physical decline are important predictors of functional independence in Alzheimer's disease (AD). ...
Imaging evidence revealed that in AD, regional gray matter atrophy measures in medial frontal and temporo-parietal areas were related to decreased cognition, physical function, and independence. ...
Acknowledgments This study was supported by grants R03 AG026374 and R21 AG029615 from the National Institutes of Aging and K23 NS058252 from the National Institute on Neurological Disorders and Stroke. ...
doi:10.3233/jad-2010-1245
pmid:20110598
pmcid:PMC2891926
fatcat:i7zno5t6wzgyzptppfhcqdgkte
Cortical and Hippocampal Atrophy in Patients with Autosomal Dominant Familial Alzheimer's Disease
2011
Dementia and Geriatric Cognitive Disorders
All analyses were corrected for age and relative age (years to median age of disease onset in the family). ...
Abstract Background: Both familial and sporadic Alzheimer's disease (AD) result in progressive cortical and subcortical atrophy. ...
, NCRR RR019771; NIH RR021813, PHS K08 AG-22228, M01-RR00865, California DHS No. 04-35522, the Goldberg Trust, and the Sidell-Kagan Foundation. ...
doi:10.1159/000330471
pmid:21952501
pmcid:PMC3222115
fatcat:fx32wpfaxfd4lfu2p7dxy6qjvy
Differential Vulnerability of Anterior White Matter in Nondemented Aging with Minimal Acceleration in Dementia of the Alzheimer Type: Evidence from Diffusion Tensor Imaging
2004
Cerebral Cortex
These data revealed age differences in anisotropy and diffusivity in all assessed regions. ...
Taken collectively, these results indicate that nondemented aging is characterized by significant changes in white matter most prominently in anterior brain regions. ...
McDonnell Foundation program in cognitive neuroscience, and the Howard Hughes Medical Institute. ...
doi:10.1093/cercor/bhh003
pmid:15028645
fatcat:3rifa6wyrbcw5mqeq46qqv6bju
White matter hypointensities and hyperintensities have equivalent correlations with age and CSF β‐amyloid in the nondemented elderly
2019
Brain and Behavior
We evaluated associations between white matter hyperintensity (WM-hyper) volume from FLAIR and white matter hypointensity (WM-hypo) volume from T1-weighted images and compared their associations with age ...
Leukoaraiosis results in signal abnormalities on T1-weighted images, which are automatically quantified by FreeSurfer, but this marker is poorly characterized and is rarely used. ...
However, we observed some differences in spatial distribution: WM-hypo distribution is predominantly in the periventricular region, whereas WM-hyper extended more into the deep white matter(Figure 2). ...
doi:10.1002/brb3.1457
pmid:31692294
pmcid:PMC6908861
fatcat:ebtr7hcgqzabxey3rroq6dhbdu
Cardiorespiratory fitness and brain atrophy in early Alzheimer disease
2008
Neurology
In early AD, VO 2 peak was associated with whole brain volume (beta=0.35, p=0.02) and white matter volume (beta=0.35, p=0.04) after controlling for age. ...
Objective-Examine the correlation of cardiorespiratory fitness with brain atrophy and cognition in early-stage Alzheimer's disease (AD). ...
Acknowledgments This study was supported by grants R03AG026374 and R21 AG029615 from the National Institutes of Aging and K23NS058252 from the National Institute on Neurological Disorders and Stroke and ...
doi:10.1212/01.wnl.0000317094.86209.cb
pmid:18625967
pmcid:PMC2657657
fatcat:ryor5wekazdx3l2iy65bqsnfpu
Structural Imaging Measures of Brain Aging
2014
Neuropsychology Review
The findings reveal highly consistent age-related differences in brain structure, particularly frontal lobe and medial temporal regions that are also accompanied by age-related differences in frontal and ...
Newer findings also suggest that degeneration of specific white matter tracts such as those passing through the genu and splenium of the corpus callosum may also be related to age-related differences in ...
to posterior white matter decline, and poorer episodic memory was associated with age-related differences in central white matter regions. ...
doi:10.1007/s11065-014-9268-3
pmid:25146995
pmcid:PMC4163469
fatcat:ue4tgbj3ife6hmpkb5c4lyiaua
A radiologic study of dynamic processes in lacunar dementia
1989
Stroke
Our findings suggest that in most patients with lacunar stroke, periventricular and subcortical white matter lesions with subsequent white matter atrophy first induce ventricular enlargement, followed ...
We evaluated the extent of white matter lesions and the degree of atrophy of specific anatomic structures, such as the corpus callosum, using magnetic resonance imaging and quantified the volumes of the ...
Some investigators 24 -36 - 39 have suggested a close correlation, whereas others 15 -40 have found no difference in the severity of white matter lesions between nondemented and demented patients. ...
doi:10.1161/01.str.20.11.1488
pmid:2815183
fatcat:olbewhr53bdytko4u7ld6cf2cq
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