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Ruiz-Uribe NE, Manser P, Butcher B, Li Y, Blendstrup M, Baker S, Sanabria Bohorquez S, Teng E. Cross-sectional and prognostic associations of baseline [ 18F]GTP1 tau PET signal and white matter lesion volumes for cognitive and functional decline in prodromal-to-mild Alzheimer's disease. J Alzheimers Dis 2025; 103:465-475. [PMID: 39801050 DOI: 10.1177/13872877241302497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2025]
Abstract
BACKGROUND In Alzheimer's disease (AD), tau and white matter lesion pathology are associated with clinical severity and subsequent decline, but their relative relationships with clinical assessments remain uncertain. OBJECTIVE To examine cross-sectional and prognostic associations between baseline [18F]GTP1 tau positron emission tomography (PET) standardized uptake value ratio (SUVRs) and T1 white matter hypointensity (WMHypo) volumes with clinical indices. METHODS We analyzed participants with biomarker-confirmed prodromal (n = 127) or mild (n = 233) AD with baseline [18F]GTP1 tau PET and MRI and longitudinal Clinical Dementia Rating-Sum of Boxes (CDR-SB), 13-item version of the Alzheimer's Disease Assessment Scale-Cognitive Subscale (ADAS-Cog13), Repeatable Battery for the Assessment of Neuropsychological Status (RBANS), Mini-Mental Status Examination (MMSE), and Alzheimer's Disease Cooperative Study-Activities of Daily Living (ADCS-ADL) data. RESULTS Higher baseline [18F]GTP1 SUVRs were independently associated with poorer baseline performance and faster rates of subsequent decline on all five clinical outcome measures. Higher baseline WMHypo volumes were independently associated with poorer baseline performance on the CDR-SB, ADAS-Cog13, RBANS, and MMSE and faster rates of subsequent decline on the CDR-SB and ADCS-ADL. CONCLUSIONS The independent associations of tau and white matter lesion pathology with clinical decline in AD suggest future prognostic models should include both imaging modalities.
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Affiliation(s)
- Nancy E Ruiz-Uribe
- Genentech, Inc., South San Francisco, CA, USA
- Department of Biomedical Engineering, Cornell University, Ithaca, NY, USA
| | - Paul Manser
- Genentech, Inc., South San Francisco, CA, USA
| | | | - Yihao Li
- Genentech, Inc., South San Francisco, CA, USA
| | | | - Suzanne Baker
- Genentech, Inc., South San Francisco, CA, USA
- Department of Molecular Biophysics and Integrated Bioimaging, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | | | - Edmond Teng
- Genentech, Inc., South San Francisco, CA, USA
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Minaki K, Amano H, Masumoto T, Otani S, Urakami K, Kurozawa Y. Association between frequency of going out and mild cognitive impairment in community-dwelling older adults: a pilot study in frailty prevention groups. Psychogeriatrics 2022; 22:833-842. [PMID: 36075581 DOI: 10.1111/psyg.12890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 07/29/2022] [Accepted: 08/17/2022] [Indexed: 11/28/2022]
Abstract
BACKGROUND Clarifying the role of physical limitations in the relationship between frequency of going out and mild cognitive impairment (MCI) may be useful in supporting early detection and prevention of MCI. However, few studies have explored relatively active populations that are continuously active throughout the year. This study aimed to determine the relationship between frequency of going out and MCI among non-homebound older adults who participated in group activities to prevent frailty. METHODS This prospective cohort study used frequency of going out as the exposure and MCI as the outcome. The Touch Panel-type Dementia Assessment Scale and questionnaires about daily life were completed by 153 community-dwelling older adults aged ≥65 years participating in frailty prevention groups in a rural town. The baseline survey was conducted from December 2017 to March 2018 and analysed cross-sectionally. Follow-up surveys were conducted at 1- and 2-years and analysed longitudinally. RESULTS Univariate and binomial logistic regression analyses at baseline showed no association between MCI and frequency of going out in older adults with physical limitations. However, there was a significant association in older adults without physical limitations. A binomial logistic regression analysis of the frequency of going out at baseline and cognitive function at the 2-year follow-up showed no association between MCI and frequency of going out in older adults with physical limitations, but there was a significant association in those without physical limitations. CONCLUSION Our results suggest that frequency of going out may not be a useful indicator of MCI in older adults with physical limitations, although low frequency of going out may be an indicator of MCI in older adults without physical limitations.
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Affiliation(s)
- Kazuma Minaki
- Division of Health Administration and Promotion, Department of Social Medicine, School of Medicine, Tottori University Faculty of Medicine, Yonago, Japan
| | - Hiroki Amano
- Division of Health Administration and Promotion, Department of Social Medicine, School of Medicine, Tottori University Faculty of Medicine, Yonago, Japan
| | - Toshio Masumoto
- Division of Health Administration and Promotion, Department of Social Medicine, School of Medicine, Tottori University Faculty of Medicine, Yonago, Japan
| | - Shinji Otani
- International Platform for Dryland Research and Education, Tottori University, Tottori, Japan
| | - Katsuya Urakami
- Department of Dementia Prevention, School of Health Science, Tottori University Faculty of Medicine, Yonago, Japan
| | - Youichi Kurozawa
- Division of Health Administration and Promotion, Department of Social Medicine, School of Medicine, Tottori University Faculty of Medicine, Yonago, Japan
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Ogama N, Sakurai T, Nakai T, Niida S, Saji N, Toba K, Umegaki H, Kuzuya M. Impact of frontal white matter hyperintensity on instrumental activities of daily living in elderly women with Alzheimer disease and amnestic mild cognitive impairment. PLoS One 2017; 12:e0172484. [PMID: 28253275 PMCID: PMC5333806 DOI: 10.1371/journal.pone.0172484] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Accepted: 02/06/2017] [Indexed: 11/19/2022] Open
Abstract
Background Instrumental activities of daily living (IADL) start to decline during the progression of amnestic mild cognitive impairment (aMCI) to Alzheimer disease (AD). Cognitive and physical decline are involved in the loss of functional independence. However, little is known about AD-related neural change that leads to IADL impairment. The purpose of this study was to clarify the effects of regional white matter hyperintensity (WMH) on IADL impairment in persons with AD and aMCI. Methods The participants were 347 female subjects aged 65–85 years diagnosed with AD (n = 227), aMCI (n = 44) or normal cognition (n = 76). IADL was assessed by the Lawton Index. Cognition, mood and mobility function were evaluated by comprehensive geriatric assessment batteries. WMH and brain atrophy were analyzed with brain magnetic resonance imaging, using an automatic segmentation program. Regional WMH was measured in the frontal, temporal, occipital and parietal lobes. Results Ability to carry out IADL of shopping, food preparation, mode of transportation, responsibility for own medication, and ability to handle finances was obviously impaired in the early stage of AD. Frontal WMH was specifically associated with disability to do shopping and food preparation even after adjusting for several confounders including brain atrophy. Conclusions IADL subcategories were differentially impaired along with cognitive status in persons with AD and aMCI. Frontal WMH was an important predictor of impaired ability to do shopping and food preparation. A preventive strategy for WMH might lead to suppression of IADL disability and slow the progression of AD.
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Affiliation(s)
- Noriko Ogama
- Center for Comprehensive Care and Research on Memory Disorders, National Center for Geriatrics and Gerontology, Obu, Japan
- Department of Community Healthcare and Geriatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Takashi Sakurai
- Center for Comprehensive Care and Research on Memory Disorders, National Center for Geriatrics and Gerontology, Obu, Japan
- * E-mail:
| | - Toshiharu Nakai
- NeuroImaging and Informatics, National Center for Geriatrics and Gerontology, Obu, Japan
| | - Shumpei Niida
- Medical Genome Center, National Center for Geriatrics and Gerontology, Obu, Japan
| | - Naoki Saji
- Center for Comprehensive Care and Research on Memory Disorders, National Center for Geriatrics and Gerontology, Obu, Japan
| | - Kenji Toba
- Center for Comprehensive Care and Research on Memory Disorders, National Center for Geriatrics and Gerontology, Obu, Japan
| | - Hiroyuki Umegaki
- Department of Community Healthcare and Geriatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Masafumi Kuzuya
- Department of Community Healthcare and Geriatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
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Saji N, Ogama N, Toba K, Sakurai T. White matter hyperintensities and geriatric syndrome: An important role of arterial stiffness. Geriatr Gerontol Int 2016; 15 Suppl 1:17-25. [PMID: 26671153 DOI: 10.1111/ggi.12673] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/02/2015] [Indexed: 12/16/2022]
Abstract
White matter hyperintensities (WMH) are defined as cerebral white matter changes presumed to be of vascular origin, bilateral and mostly symmetrical. They can appear as hyperintense on T2-weighted and fluid-attenuated inversion recovery sequences, and as isointense or hypointense on T1-weighted magnetic resonance imaging of the brain. WMH have been focused on because of their clinical importance as a risk factor for cerebrovascular diseases and cognitive impairment. WMH are associated with geriatric syndrome, which is defined by clinical symptoms characteristic of older adults, including cognitive and functional impairment and falls. Cerebral small vessel diseases, such as WMH, might play an important role as risk factors for cerebrovascular diseases, cognitive impairment and geriatric syndrome through the mechanism of arterial stiffness. However, the vascular, physiological and metabolic roles of arterial stiffness remain unclear. Basically, arterial stiffness indicates microvessel arteriosclerosis presenting with vascular endothelial dysfunction. These changes might arise from hemodynamic stress as a result of a "tsunami effect" on cerebral parenchyma. In the present article, we review the clinical characteristics of WMH, focusing particularly on two associations: (i) those between cerebral small vessel diseases including WMH and arterial stiffness; and (ii) those between WMH and geriatric syndrome.
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Affiliation(s)
- Naoki Saji
- Center for Comprehensive Care and Research on Memory Disorders, National Center for Geriatrics and Gerontology, Obu, Japan
| | - Noriko Ogama
- Center for Comprehensive Care and Research on Memory Disorders, National Center for Geriatrics and Gerontology, Obu, Japan.,Biobank, National Center for Geriatrics and Gerontology, Obu, Japan.,Department of Community Healthcare and Geriatrics, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
| | - Kenji Toba
- Center for Comprehensive Care and Research on Memory Disorders, National Center for Geriatrics and Gerontology, Obu, Japan
| | - Takashi Sakurai
- Center for Comprehensive Care and Research on Memory Disorders, National Center for Geriatrics and Gerontology, Obu, Japan
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Overdorp EJ, Kessels RPC, Claassen JA, Oosterman JM. The Combined Effect of Neuropsychological and Neuropathological Deficits on Instrumental Activities of Daily Living in Older Adults: a Systematic Review. Neuropsychol Rev 2016; 26:92-106. [PMID: 26732392 PMCID: PMC4762929 DOI: 10.1007/s11065-015-9312-y] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2015] [Accepted: 12/15/2015] [Indexed: 02/03/2023]
Abstract
To date, studies have consistently demonstrated associations between either neuropsychological deficits or neuroanatomical changes and instrumental activities of daily living (IADL) in aging. Only a limited number of studies have evaluated morphological brain changes and neuropsychological test performance concurrently in relation to IADL in this population. As a result, it remains largely unknown whether these factors independently predict functional outcome. The current systematic review intended to address this lack of information by reviewing the literature on older adults, incorporating studies that examined e.g., normal aging, but also stroke or dementia patients. A comprehensive search of databases (Pubmed, Embase, Medline, Web of Science, PsycINFO) and reference lists was performed, focusing on papers in the English language that examined the combined effect of neuropsychological and neuroanatomical factors on IADL in samples of adults with an average age above 50. In total, 58 potential articles were identified; 20 were included in the review. The results show that especially neuropsychological variables (primarily memory and executive functions) independently predict IADL. Although some unique predictive value of brain morphological changes, such as hippocampal atrophy, was found, support for the importance of white matter changes was limited. However, the results of the studies reviewed are diverse, and appear to be at least partially determined by the variables included. For example, studies were less likely to find an independent effect of cognition if they solely employed a cognitive screening instrument. This indicates that a structured examination of neuroanatomical and neuropsychological correlates of IADL in different patient populations is warranted.
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Affiliation(s)
- Eduard J Overdorp
- Department of Medical Psychology, Gelre Medical Centre, Zutphen, The Netherlands
| | - Roy P C Kessels
- Radboud University Nijmegen, Donders Institute for Brain, Cognition and Behaviour, Montessorilaan 3, 6500, HE, Nijmegen, The Netherlands.,Department of Medical Psychology, Radboud University Medical Center, Nijmegen, The Netherlands.,Department of Geriatric Medicine and Radboud Alzheimer Center, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Jurgen A Claassen
- Radboud University Nijmegen, Donders Institute for Brain, Cognition and Behaviour, Montessorilaan 3, 6500, HE, Nijmegen, The Netherlands.,Department of Geriatric Medicine and Radboud Alzheimer Center, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Joukje M Oosterman
- Radboud University Nijmegen, Donders Institute for Brain, Cognition and Behaviour, Montessorilaan 3, 6500, HE, Nijmegen, The Netherlands.
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Yoon B, Shim YS, Cheong HK, Hong YJ, Lee KS, Park KH, Ahn KJ, Kim DJ, Kim YD, Choi SH, Yang DW. White Matter Hyperintensities in Mild Cognitive Impairment: Clinical Impact of Location and Interaction with Lacunes and Medial Temporal Atrophy. J Stroke Cerebrovasc Dis 2014; 23:e365-72. [DOI: 10.1016/j.jstrokecerebrovasdis.2013.12.040] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2013] [Revised: 12/17/2013] [Accepted: 12/20/2013] [Indexed: 10/25/2022] Open
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