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Lee S, Chung JH. Association between frailty and cognitive status among ambulating Korean elderly: An observational study. Medicine (Baltimore) 2024; 103:e39222. [PMID: 39121321 PMCID: PMC11315516 DOI: 10.1097/md.0000000000039222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Accepted: 07/17/2024] [Indexed: 08/11/2024] Open
Abstract
We aimed to determine the association between frailty and cognitive status of the elderly population in Korea. We examined data from 9920 elders who participated in the 2020 Survey of Living Conditions and Welfare Needs of Korean Older Persons. Frailty was assessed using the Korean version of the Fatigue, Resistance, Ambulation, Illnesses, and Weight Loss scale. The Korean mini-mental status examination was used to test cognitive function. Several logistic regression analysis was performed, with correction for several confounding variables (socioeconomic, health behavior, psychological characteristics, and functional status), to evaluate the relationship between frailty and cognitive state. Of the elderly population in Korea, 1451 (14.6%) were frail and 5977 (60.3%) were pre-frail. Compared to the non-frail group (20.3%), cognitive impairment was considerably higher in the pre-frail (33.1%) and frail (39.8%) groups. When compared to the non-frail group, cognitive impairment was substantially linked to a higher risk of frailty after adjustment (pre-frail odds ratio [OR]: 1.66, 95% confidence interval [CI]: 1.47-1.88; frail OR: 2.00, 95% CI: 1.68-2.37). When cognitive impairment and frailty subcomponents were present, there was a higher likelihood of severe resistance (OR: 1.89; 95% CI: 1.70-2.11) and ambulation (OR: 1.46, 95% CI: 1.32-1.63) issues. Frailty is associated with cognitive impairment.
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Affiliation(s)
- Sujin Lee
- Department of Neurology, International St. Mary’s Hospital, Catholic Kwandong University College of Medicine, Incheon, Republic of Korea
| | - Jae Ho Chung
- Department of Internal Medicine, International St. Mary’s Hospital, Catholic Kwandong University College of Medicine, Incheon, Republic of Korea
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Guillotin S, Fulzele A, Vallet A, de Peredo AG, Mouton‐Barbosa E, Cestac P, Andrieu S, Burlet‐Schiltz O, Delcourt N, Schmidt E. Cerebrospinal fluid proteomic profile of frailty: Results from the PROLIPHYC cohort. Aging Cell 2024; 23:e14168. [PMID: 38698559 PMCID: PMC11258431 DOI: 10.1111/acel.14168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 02/21/2024] [Accepted: 03/25/2024] [Indexed: 05/05/2024] Open
Abstract
Frailty is a clinical state reflecting a decrease in physiological reserve capacities, known to affect numerous biological pathways and is associated with health issues, including neurodegenerative diseases. However, how global protein expression is affected in the central nervous system in frail subject remains underexplored. In this post hoc cross-sectional biomarker analysis, we included 90 adults (52-85 years) suspected of normal pressure hydrocephalus (NPH) and presenting with markers of neurodegenerative diseases. We investigated the human proteomic profile of cerebrospinal fluid associated with frailty defined by an established cumulated frailty index (FI, average = 0.32), not enriched for neurology clinical features. Using a label-free quantitative proteomic approach, we identified and quantified 999 proteins of which 13 were positively associated with frailty. Pathway analysis with the top positively frailty-associated proteins revealed enrichment for proteins related to inflammation and immune response. Among the 60 proteins negatively associated with frailty, functional pathways enriched included neurogenesis, synaptogenesis and neuronal guidance. We constructed a frailty prediction model using ridge regression with 932 standardized proteins. Our results showed that the "proteomic model" could become an equivalent predictor of FI in order to study chronological age. This study represents the first comprehensive exploration of the proteomic profile of frailty within cerebrospinal fluid. It sheds light on the physiopathology of frailty, particularly highlighting processes of neuroinflammation and inhibition of neurogenesis. Our findings unveil a range of biological mechanisms that are dysregulated in frailty, in NPH subjects at risk of neurodegenerative impairment, offering new perspectives on frailty phenotyping and prediction.
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Affiliation(s)
- Sophie Guillotin
- Aging‐MAINTAIN Research Team, Center for Epidemiology and Research in POPulation Health (CERPOP)University of ToulouseToulouseFrance
- Poison Control CenterToulouse University HospitalToulouseFrance
| | - Amit Fulzele
- Institute of Pharmacology and Structural Biology (IPBS)University of Toulouse, CNRS, University of Toulouse III (Paul Sabatier (UT3)ToulouseFrance
- Present address:
Institute of Molecular BiologyUniversity of MainzMainzGermany
| | - Alexandra Vallet
- Biological Tissue and Surface Engineering DepartmentINSERM U1059 Sainbiose, Ecole Des Mines of Saint‐EtienneSaint‐EtienneFrance
| | - Anne Gonzalez de Peredo
- Institute of Pharmacology and Structural Biology (IPBS)University of Toulouse, CNRS, University of Toulouse III (Paul Sabatier (UT3)ToulouseFrance
| | - Emmanuelle Mouton‐Barbosa
- Institute of Pharmacology and Structural Biology (IPBS)University of Toulouse, CNRS, University of Toulouse III (Paul Sabatier (UT3)ToulouseFrance
| | - Philippe Cestac
- Aging‐MAINTAIN Research Team, Center for Epidemiology and Research in POPulation Health (CERPOP)University of ToulouseToulouseFrance
- Department of Clinical PharmacyToulouse University HospitalToulouseFrance
| | - Sandrine Andrieu
- Aging‐MAINTAIN Research Team, Center for Epidemiology and Research in POPulation Health (CERPOP)University of ToulouseToulouseFrance
- Department of Epidemiology and Public HealthToulouse University HospitalToulouseFrance
- IHU HealthAgeToulouseFrance
| | - Odile Burlet‐Schiltz
- Institute of Pharmacology and Structural Biology (IPBS)University of Toulouse, CNRS, University of Toulouse III (Paul Sabatier (UT3)ToulouseFrance
| | - Nicolas Delcourt
- Poison Control CenterToulouse University HospitalToulouseFrance
- Toulouse NeuroImaging Center (ToNIC)University of Toulouse, INSERM UPSToulouseFrance
| | - Eric Schmidt
- Toulouse NeuroImaging Center (ToNIC)University of Toulouse, INSERM UPSToulouseFrance
- Department of NeurosurgeryToulouse University HospitalToulouseFrance
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Li Y, Yu R, Si H, Liu Q, Bian Y, Yu J, Wang C. Effects of cognitive reserve on cognitive frailty among older adults: A population-based prospective cohort study. Geriatr Gerontol Int 2024; 24:398-403. [PMID: 38475988 DOI: 10.1111/ggi.14855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Revised: 01/12/2024] [Accepted: 02/24/2024] [Indexed: 03/14/2024]
Abstract
AIM We investigated the effect of lifespan cognitive reserve and its components on cognitive frailty among older adults. METHODS A total of 4922 participants aged ≥65 years were recruited in 2008 and were followed up in 2011 from the Chinese Longitudinal Healthy Longevity Survey. Cognitive frailty was determined through the simultaneous presence of physical frailty (pre-frailty or frailty) and mild cognitive impairment, excluding concurrent dementia. The assessment of physical frailty and mild cognitive impairment was based on the Fatigue, Resistence, Ambulation, Illness, Loss of weight (FRAIL) (Fatigue, Resistence, Ambulation, Illness, Loss) and Mini-Mental State Examination scale, respectively. The lifespan cognitive reserve consisted of education attainment, occupational complexity and later-life leisure activities. We used logistic regression models to estimate the risk of cognitive frailty associated with the lifespan cognitive reserve and its components. RESULTS A higher level of lifespan cognitive reserve, higher educational attainment or leisure activities engagement, but not occupational complexity, were associated with lower risk of incident cognitive frailty. Furthermore, cognitive, social and physical activities were associated with lower risk of incident cognitive frailty. CONCLUSION Cognitive reserve, particularly educational attainment and leisure activities, can protect from cognitive frailty. This implicates that individuals should accumulate cognitive reserve in their lifespan, and older adults should actively participate in leisure activities to prevent cognitive frailty. Geriatr Gerontol Int 2024; 24: 398-403.
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Affiliation(s)
- Yanyan Li
- Department of Basic Nursing, School of Nursing, Peking University, Beijing, China
| | - Ruby Yu
- Department of Medicine and Therapeutics, Jockey Club Institute of Ageing, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Huaxin Si
- Department of Basic Nursing, School of Nursing, Peking University, Beijing, China
| | - Qinqin Liu
- Department of Basic Nursing, School of Nursing, Peking University, Beijing, China
| | - Yanhui Bian
- Department of Basic Nursing, School of Nursing, Peking University, Beijing, China
| | - Jiaqi Yu
- Department of Basic Nursing, School of Nursing, Peking University, Beijing, China
| | - Cuili Wang
- Department of Basic Nursing, School of Nursing, Peking University, Beijing, China
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Suprawesta L, Chen SJ, Liang HY, Hwang HF, Yu WY, Lin MR. Factors affecting cognitive frailty improvement and progression in Taiwanese older adults. BMC Geriatr 2024; 24:105. [PMID: 38287238 PMCID: PMC10823623 DOI: 10.1186/s12877-024-04700-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 01/11/2024] [Indexed: 01/31/2024] Open
Abstract
BACKGROUND Knowledge of predictors of cognitive frailty (CF) trajectories is required to develop preventive strategies to delay or reverse the progression from CF to dementia and other adverse outcomes. This 2-year prospective study aimed to investigate factors affecting the progression and improvement of CF in older Taiwanese adults. METHODS In total, 832 community-dwelling people aged ≥ 65 years were eligible. Fried's five frailty criteria were used to measure prefrailty and frailty, while cognitive performance was assessed by the Clinical Dementia Rating and Mini-Mental State Examination. Each component of reversible CF and potentially reversible CF was assigned a score, with a total score ranging 0 to 5 points. Two annual follow-up CF assessments were conducted. The group-based trajectory model was applied to identify latent CF trajectory groups, and a multinomial logistic regression was used to examine relationships of explanatory variables with CF trajectories. RESULTS According to data on 482 subjects who completed the two annual follow-ups, three CF trajectories of robust, improvement, and progression were identified. After adjusting for the baseline CF state, CF progression was significantly associated with an older age (odds ratio [OR] = 1.08; 95% confidence interval [CI], 1.02 ~ 1.14), a lower Tinetti balance score (OR = 0.72; 95% CI, 0.54 ~ 0.96), a slower gait (OR = 0.98; 95% CI, 0.97 ~ 0.99), and four or more comorbidities (OR = 2.65; 95% CI, 1.19 ~ 5.90), while CF improvement was not significantly associated with any variable except the baseline CF state. In contrast, without adjusting for the baseline CF state, CF progression was significantly associated with an older age, female sex, balance scores, gait velocity, regular exercise, the number of comorbidities, and depression, while CF improvement was significantly associated with female sex, balance scores, and the number of comorbidities. CONCLUSIONS The baseline CF state, an older age, poorer balance, slower gait, and a high number of comorbidities may contribute to CF progression, while the baseline CF state may account for associations of engaging in regular exercise and depression with CF development.
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Affiliation(s)
- Lalu Suprawesta
- Institute of Injury Prevention and Control, College of Public Health, Taipei Medical University, 250 Wu-Hsing Street, Taipei, 11031, Taiwan, ROC
- Department of Sport and Health Education, Faculty of Sport Science and Public Health, Universitas Pendidikan Mandalika, Mataram, West Nusa Tenggara, Indonesia
| | - Sy-Jou Chen
- Department of Emergency Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, ROC
| | - Hui-Yu Liang
- Department of Nursing, National Taipei University of Nursing and Health Sciences, Taipei, Taiwan, ROC
| | - Hei-Fen Hwang
- Department of Nursing, National Taipei University of Nursing and Health Sciences, Taipei, Taiwan, ROC
| | - Wen-Yu Yu
- Department of Emergency Medicine, Taipei Medical University Hospital, Taipei, Taiwan, ROC
| | - Mau-Roung Lin
- Institute of Injury Prevention and Control, College of Public Health, Taipei Medical University, 250 Wu-Hsing Street, Taipei, 11031, Taiwan, ROC.
- Programs in Medical Neuroscience, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan, ROC.
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Han BL, Ma LZ, Han SL, Mi YC, Liu JY, Sheng ZH, Wang HF, Tan L. Explore the Role of Frailty as a Contributor to the Association Between AT(N) Profiles and Cognition in Alzheimer's Disease. J Alzheimers Dis 2024; 100:1333-1343. [PMID: 39093070 DOI: 10.3233/jad-231489] [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: 08/04/2024]
Abstract
Background The relationship between Alzheimer's disease (AD)-related pathology and cognition was not exactly consistent. Objective To explore whether the association between AD pathology and cognition can be moderated by frailty. Methods We included 1711 participants from the Alzheimer's Disease Neuroimaging Initiative database. Levels of cerebrospinal fluid amyloid-β, p-tau, and t-tau were identified for AD-related pathology based on the amyloid-β/tau/neurodegeneration (AT[N]) framework. Frailty was measured using a modified Frailty Index-11 (mFI-11). Regression and interaction models were utilized to assess the relationship among frailty, AT(N) profiles, and cognition. Moderation models analyzed the correlation between AT(N) profiles and cognition across three frailty levels. All analyses were corrected for age, sex, education, and APOEɛ4 status. Results In this study, frailty (odds ratio [OR] = 1.71, p < 0.001) and AT(N) profiles (OR = 2.00, p < 0.001) were independently associated with cognitive status. The model fit was improved when frailty was added to the model examining the relationship between AT(N) profiles and cognition (p < 0.001). There was a significant interaction between frailty and AT(N) profiles in relation to cognitive status (OR = 1.12, pinteraction = 0.028). Comparable results were obtained when Mini-Mental State Examination scores were utilized as the measure of cognitive performance. The association between AT(N) profiles and cognition was stronger with the levels of frailty. Conclusions Frailty may diminish patients' resilience to AD pathology and accelerate cognitive decline resulting from abnormal AD-related pathology. In summary, frailty contributes to elucidating the relationship between AD-related pathology and cognitive impairment.
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Affiliation(s)
- Bao-Lin Han
- Department of Neurology, Qingdao Municipal Hospital, Qingdao University, Qingdao, China
| | - Ling-Zhi Ma
- Department of Neurology, Qingdao Municipal Hospital, Qingdao University, Qingdao, China
| | - Shuang-Ling Han
- Department of Neurology, Qingdao Municipal Hospital, Qingdao University, Qingdao, China
| | - Yin-Chu Mi
- Department of Neurology, Qingdao Municipal Hospital, Dalian Medical University, Qingdao, China
| | - Jia-Yao Liu
- Department of Neurology, Qingdao Municipal Hospital, Qingdao University, Qingdao, China
| | - Ze-Hu Sheng
- Department of Neurology, Qingdao Municipal Hospital, Qingdao University, Qingdao, China
| | - Hui-Fu Wang
- Department of Neurology, Qingdao Municipal Hospital, Qingdao University, Qingdao, China
- Department of Neurology, Qingdao Hospital, University of Health and Rehabilitation Sciences (Qingdao Municipal Hospital), Qingdao, China
| | - Lan Tan
- Department of Neurology, Qingdao Municipal Hospital, Qingdao University, Qingdao, China
- Department of Neurology, Qingdao Hospital, University of Health and Rehabilitation Sciences (Qingdao Municipal Hospital), Qingdao, China
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Furtado GE, Reis ASLDS, Braga-Pereira R, Caldo-Silva A, Teques P, Sampaio AR, dos Santos CAF, Bachi ALL, Campos F, Borges GF, Brito-Costa S. Impact of Exercise Interventions on Sustained Brain Health Outcomes in Frail Older Individuals: A Comprehensive Review of Systematic Reviews. Healthcare (Basel) 2023; 11:3160. [PMID: 38132050 PMCID: PMC10742503 DOI: 10.3390/healthcare11243160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 12/04/2023] [Accepted: 12/09/2023] [Indexed: 12/23/2023] Open
Abstract
Several systematic review studies highlight exercise's positive impact on brain health outcomes for frail individuals. This study adopts a Comprehensive Review of reviews (CRs) approach to amalgamate data from existing reviews, focusing on exercise's influence on brain health outcomes in older frail and pre-frail adults. The methodology involves a thorough search of Portuguese, Spanish, and English-indexed databases (i.e., Ebsco Health, Scielo, ERIC, LILACS, Medline, Web of Science, SportDiscus) from 1990 to 2022, with the AMSTAR-2 tool assessing evidence robustness. The search terms "physical exercise", "elderly frail", and "systematic review" were employed. Results: Out of 12 systematically reviewed studies, four presented high-quality (with metanalyses), while eight exhibit critically low quality. Positive trends emerge in specific cognitive and neuromotor aspects, yet challenges persist in psychosocial domains, complex cognitive tasks, and ADL outcomes. This study yields reasonable and promising evidence regarding exercise's influence on quality of life and depression in frail older individuals. However, the impact on biochemical markers remains inconclusive, emphasizing the need for standardized methodologies. Conclusions: The findings highlight the importance of acknowledging methodological nuances for clinicians and policymakers when translating these results into impactful interventions for aging populations. This emphasizes the necessity for a comprehensive and customized approach to exercise interventions aimed at fostering the sustainability of overall well-being in older individuals, aligning with United Nations Sustainable Development Goal 3.
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Affiliation(s)
- Guilherme Eustáquio Furtado
- Polytechnic Institute of Coimbra, Applied Research Institute, Rua da Misericórdia, Lagar dos Cortiços-S. Martinho do Bispo, 3045-093 Coimbra, Portugal;
- Research Centre for Natural Resources Environment and Society (CERNAS), Polytechnic Institute of Coimbra, Bencanta, 3045-601 Coimbra, Portugal
| | - Anne Sulivan Lopes da Silva Reis
- Postgraduate Program in Physical Education, University of Southwest Bahia and the State University of Santa Cruz (PPGEF/UESB/UESC), Ilhéus 45650-000, Brazil;
| | - Ricardo Braga-Pereira
- N2i, Research Centre of the Polytechnic Institute of Maia, 4475-690 Maia, Portugal; (R.B.-P.); (P.T.); (A.R.S.)
| | - Adriana Caldo-Silva
- Research Centre for Sport and Physical Activity, CIDAF, Faculty of Sport Science and Physical Education, 3040-248 Coimbra, Portugal;
| | - Pedro Teques
- N2i, Research Centre of the Polytechnic Institute of Maia, 4475-690 Maia, Portugal; (R.B.-P.); (P.T.); (A.R.S.)
- CIPER, Interdisciplinary Center for the Study of Human Performance, 1499-002 Lisbon, Portugal
| | - António Rodrigues Sampaio
- N2i, Research Centre of the Polytechnic Institute of Maia, 4475-690 Maia, Portugal; (R.B.-P.); (P.T.); (A.R.S.)
| | - Carlos André Freitas dos Santos
- Discipline of Geriatrics and Gerontology, Department of Medicine, Paulista School of Medicine, Federal University of Sao Paulo (UNIFESP), São Paulo 04020-050, Brazil;
- Postgraduate Program in Translational Medicine, Department of Medicine, Paulista School of Medicine, Federal University of São Paulo (UNIFESP), São Paulo 04023-062, Brazil
| | - André Luís Lacerda Bachi
- Post-Graduation Program in Health Sciences, Santo Amaro University (UNISA), São Paulo 04829-300, Brazil
| | - Francisco Campos
- Coimbra Education School, Polytechnic of Coimbra, 3045-043 Coimbra, Portugal;
| | - Grasiely Faccin Borges
- Center for Public Policies and Social Technologies, Federal University of Southern Bahia, Praça José Bastos, s/n, Centro, Itabuna 45600-923, Brazil;
| | - Sónia Brito-Costa
- Polytechnic Institute of Coimbra, Applied Research Institute, Rua da Misericórdia, Lagar dos Cortiços-S. Martinho do Bispo, 3045-093 Coimbra, Portugal;
- Research Group in Social and Human Sciences (NICSH), Coimbra Education School, Polytechnic of Coimbra, 3045-043 Coimbra, Portugal
- Human Potential Development Center (CDPH), Polytechnic of Coimbra, 3030-329 Coimbra, Portugal
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Pan Y, Feng ZQ, Yuan Y, Hu GM, Jiang Y, Dong JC. Bidirectional Relationship Between Circadian Rhythm and Frailty. Nat Sci Sleep 2023; 15:949-953. [PMID: 38021211 PMCID: PMC10676114 DOI: 10.2147/nss.s436488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 11/07/2023] [Indexed: 12/01/2023] Open
Abstract
Coupled with the ageing population, frailty, characterized by high prevalence and difficult treatment, has progressively evolved into a significant public health concern. Frail individuals can often observe serious metabolic disorders and sleep-wake cycle disruption, which may be caused by the decline in physiological reserve and increased vulnerability. Moreover, sleep-wake cycle disruptions and metabolic dysfunctions associated with circadian rhythm disorders are considered to be a central part of the disorder. Previous studies have documented a correlation between frailty and sleep-wake disruptions; nevertheless, the association between circadian rhythm disorders and frailty has not yet been definitively established. Hence, we hypothesize a bidirectional link between circadian rhythm disorders and frailty, with each condition exerting a significant influence on the progression of the other's disease trajectory.
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Affiliation(s)
- Yu Pan
- Department of Geriatrics, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, People’s Republic of China
| | - Zhu Qing Feng
- Department of Geriatrics, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, People’s Republic of China
| | - Yan Yuan
- Department of Geriatrics, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, People’s Republic of China
| | - Gui Ming Hu
- Department of Geriatrics, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, People’s Republic of China
| | - Yi Jiang
- Department of Geriatrics, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, People’s Republic of China
| | - Jiang Chuan Dong
- Department of Geriatrics, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, People’s Republic of China
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Cai R, Gao L, Gao C, Yu L, Zheng X, Bennett DA, Buchman AS, Hu K, Li P. Circadian disturbances and frailty risk in older adults. Nat Commun 2023; 14:7219. [PMID: 37973796 PMCID: PMC10654720 DOI: 10.1038/s41467-023-42727-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 10/19/2023] [Indexed: 11/19/2023] Open
Abstract
Frailty is characterized by diminished resilience to stressor events. It is associated with adverse future health outcomes and impedes healthy aging. The circadian system orchestrates ~24-h rhythms in bodily functions in synchrony with the day-night cycle, and disturbed circadian regulation plays an important role in many age-related health consequences. We investigated prospective associations of circadian disturbances with incident frailty in over 1000 older adults who had been followed annually for up to 16 years. We found that decreased rhythm strength, reduced stability, or increased variation were associated with a higher risk of incident frailty and faster progress of frailty over time. Perturbed circadian rest-activity rhythms may be an early sign or risk factor for frailty in older adults.
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Affiliation(s)
- Ruixue Cai
- Medical Biodynamics Program, Division of Sleep and Circadian Disorders, Brigham and Women's Hospital, Boston, MA, 02115, USA.
- School of Public Health, Southeast University, Nanjing, Jiangsu, 210000, China.
| | - Lei Gao
- Medical Biodynamics Program, Division of Sleep and Circadian Disorders, Brigham and Women's Hospital, Boston, MA, 02115, USA
- Division of Sleep Medicine, Harvard Medical School, Boston, MA, 02115, USA
- Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, 02114, USA
| | - Chenlu Gao
- Medical Biodynamics Program, Division of Sleep and Circadian Disorders, Brigham and Women's Hospital, Boston, MA, 02115, USA
- Division of Sleep Medicine, Harvard Medical School, Boston, MA, 02115, USA
- Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, 02114, USA
| | - Lei Yu
- Rush Alzheimer's Disease Center, Rush University Medical Center, Chicago, IL, 60612, USA
| | - Xi Zheng
- Medical Biodynamics Program, Division of Sleep and Circadian Disorders, Brigham and Women's Hospital, Boston, MA, 02115, USA
| | - David A Bennett
- Rush Alzheimer's Disease Center, Rush University Medical Center, Chicago, IL, 60612, USA
| | - Aron S Buchman
- Rush Alzheimer's Disease Center, Rush University Medical Center, Chicago, IL, 60612, USA
| | - Kun Hu
- Medical Biodynamics Program, Division of Sleep and Circadian Disorders, Brigham and Women's Hospital, Boston, MA, 02115, USA
- Division of Sleep Medicine, Harvard Medical School, Boston, MA, 02115, USA
- Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, 02114, USA
| | - Peng Li
- Medical Biodynamics Program, Division of Sleep and Circadian Disorders, Brigham and Women's Hospital, Boston, MA, 02115, USA.
- Division of Sleep Medicine, Harvard Medical School, Boston, MA, 02115, USA.
- Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, 02114, USA.
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9
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Cui K, Meng W, Li Z, Zeng X, Li X, Ge X. Dynamics, association, and temporal sequence of cognitive function and frailty: a longitudinal study among Chinese community-dwelling older adults. BMC Geriatr 2023; 23:658. [PMID: 37833637 PMCID: PMC10571451 DOI: 10.1186/s12877-023-04328-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 09/18/2023] [Indexed: 10/15/2023] Open
Abstract
BACKGROUND Little is known about the association of longitudinal dynamics between cognitive function and frailty in Chinese older adults. The temporal sequences between cognitive function and frailty remains unclear. Our study investigates this directionality association using longitudinal data. METHODS Latent growth and multivariate latent growth models were employed to examine dynamics of cognition and frailty and their association among 2824 older adults in China. Cross-lagged panel analyses were used to assess the temporal sequences between frailty and cognition. The relation between cognitive domains and frailty was also examined using aforementioned methods. RESULTS Cognitive function was negatively associated with frailty status. Higher initial level of cognition indicated lower baseline level (β=-0.175, P < 0.001) and change rate (β=-0.041, P = 0.002) of frailty. We observed a reciprocal association between frailty and cognitive function rather than a unidirectional causal relationship. The initial cognitive performance for all components were negatively associated with baseline (β ranged between - 0.098 to -0.023) and change rate (β ranged between - 0.007 to -0.024) of frail status. No consistent associations between change rate of cognitive components and either initial level or change rate of frailty were detected. CONCLUSIONS Our study detected a reciprocal association between cognition and frailty rather than a unidirectional causal relationship. Our results also revealed different connections between cognitive performance and frailty across diverse cognitive domains.
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Affiliation(s)
- Kai Cui
- School of Public Health, Jinzhou Medical University, 40 Songpo Road, Jinzhou, 121000, P. R. China
| | - Weihan Meng
- School of Public Health, Jinzhou Medical University, 40 Songpo Road, Jinzhou, 121000, P. R. China
| | - Zhiqiang Li
- School of Public Health, Jinzhou Medical University, 40 Songpo Road, Jinzhou, 121000, P. R. China
| | - Xinning Zeng
- School of Public Health, Jinzhou Medical University, 40 Songpo Road, Jinzhou, 121000, P. R. China
| | - Xiaozhe Li
- School of Public Health, Jinzhou Medical University, 40 Songpo Road, Jinzhou, 121000, P. R. China
| | - Xiaoyan Ge
- School of Public Health, Jinzhou Medical University, 40 Songpo Road, Jinzhou, 121000, P. R. China.
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Bae S, Shimada H, Lee S, Makino K, Chiba I, Katayama O, Harada K, Park H, Toba K. Subjective Cognitive Decline and Frailty Trajectories and Influencing Factors in Japanese Community-Dwelling Older Adults: A Longitudinal Study. J Clin Med 2023; 12:5803. [PMID: 37762744 PMCID: PMC10532373 DOI: 10.3390/jcm12185803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 08/28/2023] [Accepted: 09/04/2023] [Indexed: 09/29/2023] Open
Abstract
We studied frailty and subjective cognitive decline (SCD) trajectories in older Japanese adults and evaluated the influence of various factors on these trajectories. We analyzed data from 1157 non-demented adults aged 70 and above from 2013 to 2019. Frailty was assessed using the self-administered Kihon Checklist (KCL), a Japanese frailty index. SCD was evaluated using the questionnaire of the Subjective Memory Complaints scale. Through group-based joint trajectory models, we discerned three frailty trajectories: non-progressive (n = 775), moderate progressive (n = 312), and rapid progressive (n = 70); and three SCD trajectories: non-progressive (n = 302), moderate progressive (n = 625), and rapid progressive (n = 230). Individuals in the rapid progressive SCD trajectory had a 32.2% probability of also being in the rapid progressive frailty trajectory. In contrast, those in the non-progressive SCD trajectory had zero probability of being in the rapid progressive frailty trajectory. Both the rapid progressive frailty and SCD groups combined had a higher incidence of depressive symptoms and slow gait speed. Our results have found that frailty and SCD share a similar trajectory in Japanese older adults. Additionally, rapid progressive frailty and SCD were associated with the highest risk of depressive symptoms and slow gait speed. Thus, interventions targeting both frailty and cognitive decline should prioritize mental health enhancement and gait speed improvement.
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Affiliation(s)
- Seongryu Bae
- Department of Health Care and Science, Dong-A University, 37 Nakdong-daero 550, Saha-gu, Busan 49315, Republic of Korea;
- Department of Preventive Gerontology, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, 7-430 Morioka, Obu 474-8511, Aichi, Japan; (H.S.)
| | - Hiroyuki Shimada
- Department of Preventive Gerontology, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, 7-430 Morioka, Obu 474-8511, Aichi, Japan; (H.S.)
| | - Sangyoon Lee
- Department of Preventive Gerontology, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, 7-430 Morioka, Obu 474-8511, Aichi, Japan; (H.S.)
| | - Keitaro Makino
- Department of Preventive Gerontology, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, 7-430 Morioka, Obu 474-8511, Aichi, Japan; (H.S.)
| | - Ippei Chiba
- Tohoku Medical Megabank Organization (ToMMo), Tohoku University, 2-1 Seiryo-machi, Aoba-ku, Sendai 980-8573, Miyagi, Japan;
| | - Osamu Katayama
- Department of Preventive Gerontology, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, 7-430 Morioka, Obu 474-8511, Aichi, Japan; (H.S.)
| | - Kenji Harada
- Department of Preventive Gerontology, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, 7-430 Morioka, Obu 474-8511, Aichi, Japan; (H.S.)
| | - Hyuntae Park
- Department of Health Care and Science, Dong-A University, 37 Nakdong-daero 550, Saha-gu, Busan 49315, Republic of Korea;
- Department of Preventive Gerontology, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, 7-430 Morioka, Obu 474-8511, Aichi, Japan; (H.S.)
| | - Kenji Toba
- Tokyo Metropolitan Hospital and Institute of Gerontology, 35-2 Sakae-cho, Itabashi-ku, Tokyo 173-0015, Japan
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Buchman AS, Wang T, Oveisgharan S, Zammit AR, Agrawal S, Yu L, Bennett DA. Correlated decline of cognitive and motor phenotypes and ADRD pathologies in old age. Alzheimers Dement 2023; 19:4150-4162. [PMID: 37303291 PMCID: PMC10524791 DOI: 10.1002/alz.13347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 05/15/2023] [Accepted: 05/17/2023] [Indexed: 06/13/2023]
Abstract
INTRODUCTION Examining motor and cognitive decline in separate models may underestimate their associations. METHODS In a single trivariate model, we examined the levels and rates of decline of three phenotypes, sensor-derived total daily physical activity, motor abilities, and cognition in 1007 older adults during 6 years of follow-up. In 477 decedents, we repeated the model adding fixed terms for indices of nine brain pathologies. RESULTS Simultaneous rates of decline of all three phenotypes showed the strongest correlations with shared variance of up to 50%. Brain pathologies explained about 3% of the variance of declining daily physical activity, 9% of declining motor abilities, and 42% of cognitive decline. DISCUSSION The rates of declining cognitive and motor phenotypes are strongly correlated and measures of brain pathologies account for only a small minority of their decline. Further work is needed to elucidate the biology underlying correlated cognitive and motor decline in aging adults.
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Affiliation(s)
- Aron S Buchman
- Rush Alzheimer's Disease Center, Rush University Medical Center, Chicago, Illinois, USA
- Department of Neurological Sciences, Rush University Medical Center, Chicago, Illinois, USA
| | - Tianhao Wang
- Rush Alzheimer's Disease Center, Rush University Medical Center, Chicago, Illinois, USA
- Department of Neurological Sciences, Rush University Medical Center, Chicago, Illinois, USA
| | - Shahram Oveisgharan
- Rush Alzheimer's Disease Center, Rush University Medical Center, Chicago, Illinois, USA
- Department of Neurological Sciences, Rush University Medical Center, Chicago, Illinois, USA
| | - Andrea R Zammit
- Rush Alzheimer's Disease Center, Rush University Medical Center, Chicago, Illinois, USA
- Department of Psychiatry and Behavioral Sciences, Rush University Medical Center, Chicago, Illinois, USA
| | - Sonal Agrawal
- Rush Alzheimer's Disease Center, Rush University Medical Center, Chicago, Illinois, USA
- Department of Pathology (Neuropathology), Rush University Medical Center, Chicago, Illinois, USA
| | - Lei Yu
- Rush Alzheimer's Disease Center, Rush University Medical Center, Chicago, Illinois, USA
- Department of Neurological Sciences, Rush University Medical Center, Chicago, Illinois, USA
| | - David A Bennett
- Rush Alzheimer's Disease Center, Rush University Medical Center, Chicago, Illinois, USA
- Department of Neurological Sciences, Rush University Medical Center, Chicago, Illinois, USA
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12
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Root JC, Li Y, Schofield E, Orlow I, Ryan E, Traina T, Patel SK, Ahles TA. Cognitive Aging in Older Breast Cancer Survivors. Cancers (Basel) 2023; 15:3208. [PMID: 37370818 PMCID: PMC10296698 DOI: 10.3390/cancers15123208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 05/23/2023] [Accepted: 06/01/2023] [Indexed: 06/29/2023] Open
Abstract
BACKGROUND Cancer and cancer treatments may affect aging processes, altering the trajectory of cognitive aging, but the extant studies are limited in their intervals of assessment (two-five years). We studied the cognitive performance of a cohort of survivors and controls aged from 60 to 89 years utilizing cross-sectional cognitive performance data as an indicator of potential aging trajectories and contrasted these trends with longitudinal data collected over two years. METHODS Female breast cancer survivors who had been diagnosed and treated at age 60 or older and were 5- to 15-year survivors (N = 328) and non-cancer controls (N = 158) were assessed at enrollment and at 8, 16, and 24 months with standard neuropsychological tests and comprehensive geriatric assessment. RESULTS A cross-sectional baseline analysis found the expected inverse association of age with cognition in both groups, with survivors performing lower overall than controls in learning and memory (LM). Younger survivors, i.e., those under 75 years of age, exhibited lower performance in both LM and attention, and processing speed and executive function (APE), compared to controls, with no differences being observed between older survivors and controls, which tracked with deficit accumulation trends. CONCLUSION Cognitive differences between the survivors and controls for the LM and APE domains were prominent in younger survivors, as was deficit accumulation, suggesting a mediating effect on cognition. Deficit accumulation may represent a modifiable risk factor in cancer survivorship that may be targeted for prevention and intervention.
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Affiliation(s)
- James C. Root
- Neurocognitive Research Lab, Department of Psychiatry and Behavioral Sciences, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA; (Y.L.); (E.S.); (E.R.); (T.A.A.)
| | - Yuelin Li
- Neurocognitive Research Lab, Department of Psychiatry and Behavioral Sciences, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA; (Y.L.); (E.S.); (E.R.); (T.A.A.)
| | - Elizabeth Schofield
- Neurocognitive Research Lab, Department of Psychiatry and Behavioral Sciences, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA; (Y.L.); (E.S.); (E.R.); (T.A.A.)
| | - Irene Orlow
- Molecular Epidemiology Laboratory, Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA;
| | - Elizabeth Ryan
- Neurocognitive Research Lab, Department of Psychiatry and Behavioral Sciences, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA; (Y.L.); (E.S.); (E.R.); (T.A.A.)
| | - Tiffany Traina
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA;
| | - Sunita K. Patel
- Departments of Population Science and Supportive Care Medicine, City of Hope Comprehensive Cancer Center, Duarte, CA 91010, USA;
| | - Tim A. Ahles
- Neurocognitive Research Lab, Department of Psychiatry and Behavioral Sciences, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA; (Y.L.); (E.S.); (E.R.); (T.A.A.)
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13
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Li R, Liu Z, Huang R, Chen Y, Wei Z, Wang J, He L, Pei Y, Su Y, Hu X, Peng X. Frailty trajectory predicts subsequent cognitive decline: A 26-year population-based longitudinal cohort study. MedComm (Beijing) 2023; 4:e296. [PMID: 37287754 PMCID: PMC10242271 DOI: 10.1002/mco2.296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 05/07/2023] [Accepted: 05/08/2023] [Indexed: 06/09/2023] Open
Abstract
Frailty refers to a decline in the physiological functioning of one or more organ systems. It remained unclear whether variations in the trajectory of frailty over time were associated with subsequent cognitive change. The aim of the current study was to investigate the association between frailty trajectories and subsequent cognitive decline based on the Health and Retirement Study (HRS). A total of 15,454 participants were included. The frailty trajectory was assessed using the Paulson-Lichtenberg Frailty Index, while the cognitive function was evaluated using the Langa-Weir Classification. Results showed that severe frailty was significantly associated with the subsequent decline in cognitive function (β [95% CI] = -0.21 [-0.40, -0.03], p = 0.03). In the five identified frailty trajectories, participants with mild frailty (inverted U-shaped, β [95% CI] = -0.22 [-0.43, -0.02], p = 0.04), mild frailty (U-shaped, β [95% CI] = -0.22 [-0.39, -0.06], p = 0.01), and frailty (β [95% CI] = -0.34 [-0.62, -0.07], p = 0.01) were all significantly associated with the subsequent cognition decline in the elderly. The current study suggested that monitoring and addressing frailty trajectories in older adults may be a critical approach in preventing or mitigating cognitive decline, which had significant implications for healthcare.
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Affiliation(s)
- Ruidan Li
- Department of Biotherapy and National Clinical Research Center for Geriatrics, Cancer CenterWest China HospitalSichuan UniversityChengduSichuanChina
| | - Zheran Liu
- Department of Biotherapy and National Clinical Research Center for Geriatrics, Cancer CenterWest China HospitalSichuan UniversityChengduSichuanChina
| | - Rendong Huang
- Hangzhou Linan Guorui Health Industry Investment Co., LtdHangzhouZhejiangChina
| | - Ye Chen
- Department of Abdominal Cancer, Cancer Center, West China HospitalSichuan UniversityChengduSichuanChina
| | - Zhigong Wei
- Department of Biotherapy and National Clinical Research Center for Geriatrics, Cancer CenterWest China HospitalSichuan UniversityChengduSichuanChina
| | - Jingjing Wang
- Department of Biotherapy and National Clinical Research Center for Geriatrics, Cancer CenterWest China HospitalSichuan UniversityChengduSichuanChina
| | - Ling He
- Department of Biotherapy and National Clinical Research Center for Geriatrics, Cancer CenterWest China HospitalSichuan UniversityChengduSichuanChina
| | - Yiyan Pei
- Department of Biotherapy and National Clinical Research Center for Geriatrics, Cancer CenterWest China HospitalSichuan UniversityChengduSichuanChina
| | - Yonglin Su
- West China HospitalSichuan UniversityChengduSichuanChina
| | - Xiaolin Hu
- West China School of Nursing, West China HospitalSichuan UniversityChengduSichuanChina
| | - Xingchen Peng
- Department of Biotherapy and National Clinical Research Center for Geriatrics, Cancer CenterWest China HospitalSichuan UniversityChengduSichuanChina
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14
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Li J, Zhu M, Zhao S, Liu X. Factors associated with frailty transitions among the old-old in a community. Geriatr Gerontol Int 2023. [PMID: 37186132 DOI: 10.1111/ggi.14579] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 02/28/2023] [Accepted: 03/13/2023] [Indexed: 05/17/2023]
Abstract
AIM The study aimed to explore the factors associated with frailty transitions among the old-old (aged ≥75 years) in a community. METHODS The participants were all from a prospective cohort study in a community in Beijing, China. Frailty states were assessed using FRAIL at baseline and at 1-year follow-up. The association between factors, including comprehensive geriatric assessment and laboratory indicators, and frailty transitions were explored by binary logistic regression. The predicted value of the factors associated with frailty transitions was analyzed using the receiver operating characteristic curve (ROC) and the area under the ROC (AUC) for each factor was calculated. RESULTS In total, 183 older adults (mean age: 83.9 ± 4.4 years; women, 59%) completed the frailty state assessment at baseline and 1-year follow-up. After adjusting for age and sex, physical function, including walking speed, timed up-and-go test and short physical performance battery, serum albumin and serum high-sensitivity C-reactive protein (hsCRP) were associated with worsening of the frailty state. Cognitive function was associated with improving the frailty state. ROC analysis showed that low walking speed (AUC: 0.81), long timed up-and-go test time (AUC: 0.77), low short physical performance battery score (AUC: 0.75), low serum albumin (AUC: 0.68) and high serum hsCRP (AUC: 0.80) could predict the decline in frailty state. Good cognitive function (AUC: 0.69) predicted an improvement in the frailty state. CONCLUSIONS The frailty state of the old-old with poor physical function, low serum albumin and high serum hsCRP was likely to decline, but it could improve with good cognitive function. Geriatr Gerontol Int ••; ••: ••-•• Geriatr Gerontol Int 2023; ••: ••-••.
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Affiliation(s)
- Jiaojiao Li
- Department of Geriatrics, Peking Union Medical College, Chinese Academy of Medical Sciences, Peking Union Medical College Hospital, Beijing, China
| | - Minglei Zhu
- Department of Geriatrics, Peking Union Medical College, Chinese Academy of Medical Sciences, Peking Union Medical College Hospital, Beijing, China
| | - Songqi Zhao
- Yanyuan Rehabilitation Hospital, Beijing, China
| | - Xiaohong Liu
- Department of Geriatrics, Peking Union Medical College, Chinese Academy of Medical Sciences, Peking Union Medical College Hospital, Beijing, China
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15
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Taylor JA, Greenhaff PL, Bartlett DB, Jackson TA, Duggal NA, Lord JM. Multisystem physiological perspective of human frailty and its modulation by physical activity. Physiol Rev 2023; 103:1137-1191. [PMID: 36239451 PMCID: PMC9886361 DOI: 10.1152/physrev.00037.2021] [Citation(s) in RCA: 30] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
"Frailty" is a term used to refer to a state characterized by enhanced vulnerability to, and impaired recovery from, stressors compared with a nonfrail state, which is increasingly viewed as a loss of resilience. With increasing life expectancy and the associated rise in years spent with physical frailty, there is a need to understand the clinical and physiological features of frailty and the factors driving it. We describe the clinical definitions of age-related frailty and their limitations in allowing us to understand the pathogenesis of this prevalent condition. Given that age-related frailty manifests in the form of functional declines such as poor balance, falls, and immobility, as an alternative we view frailty from a physiological viewpoint and describe what is known of the organ-based components of frailty, including adiposity, the brain, and neuromuscular, skeletal muscle, immune, and cardiovascular systems, as individual systems and as components in multisystem dysregulation. By doing so we aim to highlight current understanding of the physiological phenotype of frailty and reveal key knowledge gaps and potential mechanistic drivers of the trajectory to frailty. We also review the studies in humans that have intervened with exercise to reduce frailty. We conclude that more longitudinal and interventional clinical studies are required in older adults. Such observational studies should interrogate the progression from a nonfrail to a frail state, assessing individual elements of frailty to produce a deep physiological phenotype of the syndrome. The findings will identify mechanistic drivers of frailty and allow targeted interventions to diminish frailty progression.
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Affiliation(s)
- Joseph A Taylor
- MRC-Versus Arthritis Centre for Musculoskeletal Ageing Research, School of Life Sciences, University of Nottingham, Queen's Medical Centre, Nottingham, United Kingdom
| | - Paul L Greenhaff
- MRC-Versus Arthritis Centre for Musculoskeletal Ageing Research, School of Life Sciences, University of Nottingham, Queen's Medical Centre, Nottingham, United Kingdom.,NIHR Nottingham Biomedical Research Centre, University of Nottingham, Queen's Medical Centre, Nottingham, United Kingdom
| | - David B Bartlett
- Division of Medical Oncology, Department of Medicine, Duke University, Durham, North Carolina.,Department of Nutritional Sciences, Faculty of Health and Medical Sciences, University of Surrey, Guildford, United Kingdom
| | - Thomas A Jackson
- MRC-Versus Arthritis Centre for Musculoskeletal Ageing Research, Institute of Inflammation and Ageing, https://ror.org/03angcq70University of Birmingham, Birmingham, United Kingdom
| | - Niharika A Duggal
- MRC-Versus Arthritis Centre for Musculoskeletal Ageing Research, Institute of Inflammation and Ageing, https://ror.org/03angcq70University of Birmingham, Birmingham, United Kingdom
| | - Janet M Lord
- MRC-Versus Arthritis Centre for Musculoskeletal Ageing Research, Institute of Inflammation and Ageing, https://ror.org/03angcq70University of Birmingham, Birmingham, United Kingdom.,NIHR Birmingham Biomedical Research Centre, University Hospital Birmingham and University of Birmingham, Birmingham, United Kingdom
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16
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Tian Q, Montero-Odasso M, Buchman AS, Mielke MM, Espinoza S, DeCarli CS, Newman AB, Kritchevsky SB, Rebok GW, Resnick SM, Thambisetty M, Verghese J, Ferrucci L. Dual cognitive and mobility impairments and future dementia - Setting a research agenda. Alzheimers Dement 2023; 19:1579-1586. [PMID: 36637077 PMCID: PMC10101877 DOI: 10.1002/alz.12905] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 10/28/2022] [Accepted: 11/15/2022] [Indexed: 01/14/2023]
Abstract
Dual cognitive and mobility impairments are associated with an increased risk of dementia. Recent studies examining temporal trajectories of mobility and cognitive function in aging found that dual decline is associated with higher dementia risk than memory decline or gait decline only. Although initial data show that individuals with dual decline or impairment have excessive cardiovascular and metabolic risk factors, the causes of dual decline or what underlies dual decline with a high risk of dementia remain largely unknown. In December 2021, the National Institute on Aging Intramural and Extramural Programs jointly organized a workshop on Biology Underlying Moving and Thinking to explore the hypothesis that older persons with dual decline may develop dementia through a specific pathophysiological pathway. The working group discussed assessment methods for dual decline and possible mechanisms connecting dual decline with dementia risk and pinpointed the most critical questions to be addressed from a translational perspective.
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Affiliation(s)
- Qu Tian
- Translational Gerontology Branch, National Institute on Aging, Baltimore, MD, USA
| | - Manuel Montero-Odasso
- Schulich School of Medicine and Dentistry, Department of Medicine and Division of Geriatric Medicine, The University of Western Ontario, London, ON, Canada
- Gait and Brain Lab, Parkwood Institute, Lawson Health Research Institute, London, ON, Canada
- Department of Epidemiology and Biostatistics, The University of Western Ontario, London, ON, Canada
| | - Aron S. Buchman
- Rush Alzheimer’s Disease Center, Rush University Medical Center, Chicago, IL, USA
- Department of Neurological Sciences, Rush University Medical Center, Chicago, IL, USA
| | - Michelle M. Mielke
- Department of Epidemiology and Prevention, Wake Forest University School of Medicine, Winston-Salem, NC, USA
| | - Sara Espinoza
- Division of Geriatrics, Gerontology & Palliative Medicine, Sam and Ann Barshop Institute for Longevity and Aging Studies, UT Health San Antonio, San Antonio, TX, USA
- Geriatrics Research, Education and Clinical Center, South Texas Veterans Health Care System, Audie Murphy Veterans Hospital, San Antonio, TX, USA
| | | | - Anne B. Newman
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
| | - Stephen B. Kritchevsky
- Department of Internal Medicine: Gerontology & Geriatric Medicine, The Sticht Center for Healthy Aging and Alzheimer’s Prevention, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - George W. Rebok
- Department of Mental Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
- Johns Hopkins Center on Aging and Health, Baltimore, MD, USA
- Johns Hopkins Alzheimer’s Disease Resource Center for Minority Aging Research, Baltimore, MD, USA
| | - Susan M. Resnick
- Laboratory of Behavioral Neuroscience, National Institute on Aging, Baltimore, MD, USA
| | - Madhav Thambisetty
- Laboratory of Behavioral Neuroscience, National Institute on Aging, Baltimore, MD, USA
| | - Joe Verghese
- Department of Neurology, Albert Einstein College of Medicine, Bronx, NY, USA
- Department of Medicine, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Luigi Ferrucci
- Translational Gerontology Branch, National Institute on Aging, Baltimore, MD, USA
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17
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Cai R, Gao L, Gao C, Yu L, Zheng X, Bennett D, Buchman A, Hu K, Li P. Circadian disturbances and frailty risk in older adults: a prospective cohort study. RESEARCH SQUARE 2023:rs.3.rs-2648399. [PMID: 37034594 PMCID: PMC10081385 DOI: 10.21203/rs.3.rs-2648399/v1] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/01/2023]
Abstract
Frailty is characterized by diminished resilience to stressor events. It associates with adverse future health outcomes and impedes healthy aging. The circadian system orchestrates a ~24-h rhythm in bodily functions in synchrony with the day-night cycle, and disturbed circadian regulation plays an important role in many age-related health consequences. We investigated prospective associations of circadian disturbances with incident frailty in over 1,000 older adults who had been followed annually for up to 16 years. We found that decreased rhythm strength, reduced stability, or increased variation, were associated with a higher risk of incident frailty, and faster worsening of the overall frailty symptoms over time. Perturbed circadian rest-activity rhythms may be an early sign or risk factor for frailty in older adults.
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Affiliation(s)
| | - Lei Gao
- Brigham and Women's Hospital
| | | | - Lei Yu
- Rush University Medical Center
| | | | | | | | - Kun Hu
- Brigham and Women's Hospital
| | - Peng Li
- Brigham and Women's Hospital/ Harvard Medical School
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18
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Oveisgharan S, Yu L, Wang T, Schneider JA, Bennett DA, Buchman AS. Neurodegenerative and Cerebrovascular Brain Pathologies Are Differentially Associated With Declining Grip Strength and Gait In Older Adults. J Gerontol A Biol Sci Med Sci 2023; 78:504-513. [PMID: 35675284 PMCID: PMC9977235 DOI: 10.1093/gerona/glac128] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Understanding the pathological bases underlying the heterogeneity of motor decline in old age may lead to targeted treatments. We examined whether different brain pathologies are related to declining grip strength and gait function. METHODS We examined postmortem brains of older adults who underwent annual motor testing. Postmortem exam measured 6 neurodegenerative and 5 cerebrovascular disease (CVD) pathologies. Grip strength was measured twice bilaterally using a hand-held dynamometer, and gait function was a composite measure based on time and steps taken to walk 8 ft and perform a 360° turn twice. RESULTS In separate linear mixed-effects models including all autopsied adults (N = 1 217), neurodegenerative pathologies including tau tangles, TDP-43, and nigral neuronal loss were associated with declining grip strength, but not CVD pathologies. In contrast, although both CVD and neurodegenerative pathologies were associated with declining gait function, CVD pathologies accounted for 75% of the variance of declining rate of gait function explained by brain pathologies and neurodegenerative pathologies accounted for 25%. These findings were unchanged in adults (n = 970) without a history of stroke. Restricting analyses to only adults without dementia (n = 661), CVD pathologies continued to account for the majority of the variance of declining gait. However, we failed to detect in this subgroup the variance of declining grip strength explained by neurodegenerative or CVD pathologies. CONCLUSION Different pathologies accumulating in aging brains may contribute to the phenotypic heterogeneity of motor decline. Larger studies are needed in older adults without dementia to assess differences in the motor consequences of varied brain pathologies.
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Affiliation(s)
- Shahram Oveisgharan
- Rush Alzheimer’s Disease Center, Rush University Medical Center, Chicago, Illinois, USA
- Department of Neurological Sciences, Rush University Medical Center, Chicago, Illinois, USA
| | - Lei Yu
- Rush Alzheimer’s Disease Center, Rush University Medical Center, Chicago, Illinois, USA
- Department of Neurological Sciences, Rush University Medical Center, Chicago, Illinois, USA
| | - Tianhao Wang
- Rush Alzheimer’s Disease Center, Rush University Medical Center, Chicago, Illinois, USA
- Department of Neurological Sciences, Rush University Medical Center, Chicago, Illinois, USA
| | - Julie A Schneider
- Rush Alzheimer’s Disease Center, Rush University Medical Center, Chicago, Illinois, USA
- Department of Neurological Sciences, Rush University Medical Center, Chicago, Illinois, USA
- Department of Pathology, Rush University Medical Center, Chicago, Illinois, USA
| | - David A Bennett
- Rush Alzheimer’s Disease Center, Rush University Medical Center, Chicago, Illinois, USA
- Department of Neurological Sciences, Rush University Medical Center, Chicago, Illinois, USA
| | - Aron S Buchman
- Rush Alzheimer’s Disease Center, Rush University Medical Center, Chicago, Illinois, USA
- Department of Neurological Sciences, Rush University Medical Center, Chicago, Illinois, USA
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19
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Guo X, Pei J, Ma Y, Cui Y, Guo J, Wei Y, Han L. Cognitive Frailty as a Predictor of Future Falls in Older Adults: A Systematic Review and Meta-Analysis. J Am Med Dir Assoc 2023; 24:38-47. [PMID: 36423679 DOI: 10.1016/j.jamda.2022.10.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 10/13/2022] [Accepted: 10/17/2022] [Indexed: 11/22/2022]
Abstract
OBJECTIVES To examine the association between cognitive frailty and the risk of future falls among older adults. DESIGN Systematic review and meta-analysis. SETTING AND PARTICIPANTS Older people aged ≥60 years with cognitive frailty from community, hospital, or both. METHODS PubMed, EMBASE, Web of Science, the Cochrane Library, Wanfang Database, China Knowledge Resource Integrated Database (CNKI), Weipu Database (VIP), and Chinese Biomedical Database (CBM) were searched for relevant studies published from the inception of the database until June 14, 2022. Stata 16.0 software was used to perform the meta-analysis. A random effects model was used to pool the prevalence of falls in older adults over age 60 years with cognitive frailty and the strength of the association between cognitive frailty and falls [odds ratios (ORs) and 95% CIs]. Quality assessment, heterogeneity, and sensitivity analyses were also conducted. A study protocol was registered in PROSPERO (CRD42022331323). RESULTS The review included 18 studies in qualitative synthesis, 14 of which were in meta-analysis. Eleven sets of cross-sectional data involving 23,025 participants and 5 sets of longitudinal data involving 11,924 participants were used in the meta-analysis. The results showed that the overall prevalence of falls in 1742 people with cognitive frailty was 36.3% (95% CI 27.9-44.8, I2 = 93.4%). Longitudinal study results showed that cognitively frail individuals had a higher risk of falls (OR 3.02, 95% CI 2.11-4.32, I2 = 0.0%, P = .406), compared to robust participants without cognitive impairment; physically frail people (alone) had a moderate risk of falls (OR 2.16, 95% CI 1.42-3.30, I2 = 9.7%, P = .351); cognitively impaired people (alone) had a lower risk of falls (OR 1.36, 95% CI 1.03-1.79, I2 = 0.0%, P = .440). Among cross-sectional studies, cognitive frailty was associated with the risk of falls (OR 2.74, 95% CI 2.20-3.40, I2 = 53.1%, P = .019). Although high heterogeneity was noted among 11 cross-sectional studies reporting ORs, the sensitivity analysis showed that no single study significantly affected the final pooled results. CONCLUSIONS AND IMPLICATIONS This systematic review and meta-analysis confirms the findings that cognitive frailty was demonstrated to be a significant predictor of future falls in older adults. However, further prospective investigations are warranted.
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Affiliation(s)
- Xiaojing Guo
- Evidence-Based Nursing Center, School of Nursing, Lanzhou University, Lanzhou City, Gansu Province, China
| | - Juhong Pei
- The First Clinical School of Medicine, Lanzhou University, Lanzhou City, Gansu Province, China
| | - Yuxia Ma
- Evidence-Based Nursing Center, School of Nursing, Lanzhou University, Lanzhou City, Gansu Province, China
| | - Yutong Cui
- Evidence-Based Nursing Center, School of Nursing, Lanzhou University, Lanzhou City, Gansu Province, China
| | - Jiali Guo
- Evidence-Based Nursing Center, School of Nursing, Lanzhou University, Lanzhou City, Gansu Province, China
| | - Yuting Wei
- Evidence-Based Nursing Center, School of Nursing, Lanzhou University, Lanzhou City, Gansu Province, China
| | - Lin Han
- Evidence-Based Nursing Center, School of Nursing, Lanzhou University, Lanzhou City, Gansu Province, China; Department of Nursing, Gansu Provincial Hospital, Lanzhou City, Gansu Province, China.
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Lammers-Lietz F, Zacharias N, Mörgeli R, Spies CD, Winterer G. Functional Connectivity of the Supplementary and Presupplementary Motor Areas in Postoperative Transition Between Stages of Frailty. J Gerontol A Biol Sci Med Sci 2022; 77:2464-2473. [PMID: 35040961 DOI: 10.1093/gerona/glac012] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Indexed: 01/20/2023] Open
Abstract
BACKGROUND Frailty is a multietiological geriatric syndrome of run-down physical reserves with high vulnerability to stressors. Transitions between physical robustness and frailty often occur in the context of medical interventions. Studies suggest that neurological disorders contribute to faster progression of frailty. In a previous cross-sectional study we found altered functional connectivity of supplementary motor area (SMA) in (pre)frail compared to robust patients. We analyzed functional connectivity of the SMA and presupplementary motor area (pre-SMA) in patients with postoperative transitions between physical robustness and stages of frailty. METHODS We investigated 120 cognitively healthy patients (49.2% robust, 47.5% prefrail, 3.3% frail, 37.5% female, median age 71 [65-87] years) undergoing elective surgery from the BioCog project, a multicentric prospective cohort study on postoperative delirium and cognitive dysfunction. Assessments took place 14 days before and 3 months after surgery, comprising assessments of a modified frailty phenotype according to Fried and resting-state functional magnetic resonance imaging at 3 T. The associations between functional connectivity of the SMA and pre-SMA networks, preoperative frailty stages, and postoperative transitions were examined using mixed linear effects models. RESULTS Nineteen patients showed physical improvement after surgery, 24 patients progressed to (pre)frailty and in 77 patients no transition was observed. At follow-up, 57 (47.5%) patients were robust, 52 (43.3%) prefrail, and 11 (9.2%) frail. Lower functional connectivity in the pre-SMA network was associated with more unfavorable postoperative transition types. An exploratory analysis suggested that the association was restricted to patients who were prefrail at baseline. There was no association of transition type with SMA functional connectivity in the primary analysis. In an exploratory analysis, transition from prefrailty to robustness was associated with higher functional connectivity and progression in robust patients was associated with higher SMA network segregation. CONCLUSIONS Our findings implicate that dysfunctions of cortical networks involved in higher cognitive control of motion are associated with postoperative transitions between frailty stages. The pre-SMA may be a target for neurofeedback or brain stimulation in approaches to prevent frailty. Clinical Trials Registration Number: NCT02265263.
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Affiliation(s)
- Florian Lammers-Lietz
- Department of Anesthesiology and Operative Intensive Care Medicine (CCM, CVK), Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Norman Zacharias
- Department of Anesthesiology and Operative Intensive Care Medicine (CCM, CVK), Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany.,Pharmaimage Biomarker Solutions GmbH, Berlin, Germany
| | - Rudolf Mörgeli
- Department of Anesthesiology and Operative Intensive Care Medicine (CCM, CVK), Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Claudia D Spies
- Department of Anesthesiology and Operative Intensive Care Medicine (CCM, CVK), Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Georg Winterer
- Department of Anesthesiology and Operative Intensive Care Medicine (CCM, CVK), Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany.,Pharmaimage Biomarker Solutions GmbH, Berlin, Germany
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21
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Zheng L, Wang C, Qiu Y, Li X, Zhang X, Zhang M, Ma T, Li G, Chen L. Effectiveness of interventions in older adults with cognitive frailty: a systematic review and meta-analysis of randomised controlled trials. Age Ageing 2022; 51:6931850. [PMID: 36571775 DOI: 10.1093/ageing/afac286] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND interventions targeting older adults with cognitive frailty have grown rapidly in recent years with inconsistent findings. However, there is no meta-analysis that has synthesised pooled estimates. OBJECTIVE to synthesise the pooled effect of current targeted interventions in older people with cognitive frailty. METHODS we conducted a systematic search in PubMed, Embase, Web of Science, the Cochrane Library, the JBI database and three Chinese databases (CNKI, Wan-Fang and VIP) for literature from the inception of the database until 8 March 2022. The mean difference or standardised mean difference with 95% CIs was calculated. The methodological quality was assessed by the Cochrane RoB 2.0. The certainty of evidence was assessed using the GRADE criteria. RESULTS thirteen randomised controlled trials with a total of 1,089 participants were included. The results of the meta-analysis showed that older adults with cognitive frailty in the intervention groups had significant improvement in frailty score [MD = -1.67, 95% CI (-2.39, -0.95), P < 0.00001, I2 = 97%], global cognitive function [MD = 3.38, 95% CI (1.90, 4.85), P < 0.00001, I2 = 93%], mobility [MD = -0.96, 95% CI (-1.27, -1.66), P < 0.00001, I2 = 0%], muscle strength [SMD = 0.75, 95% CI (0.09, 1.41), P = 0.03, I2 = 85%] and nutritional status [MNA:MD = 5.64, 95% CI (3.99, 7.29), P < 0.00001, I2 = 89%; ALB: MD = 3.23, 95% CI (0.76, 5.71), P = 0.01, I2 = 93%; PALB: MD = 54.52, 95% CI (25.26, 83.77), P = 0.0003, I2 = 96%; TRF: MD = 0.64, 95% CI (0.22, 1.06), P = 0.003, I2 = 97%]. The overall certainty of the evidence ranged from low to moderate. CONCLUSIONS interventions targeting older adults with cognitive frailty are effective in improving physical frailty, global cognitive function, physical function and nutritional status with low to moderate certainty. More research is still needed in the future to further enrich the evidence in these fields. PROSPERO NUMBER CRD42022318758.
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Affiliation(s)
- Lufang Zheng
- School of Nursing, Jilin University, Changchun, China
| | - Cong Wang
- School of Nursing, Jilin University, Changchun, China
| | - Yiming Qiu
- School of Nursing, Jilin University, Changchun, China
| | - Xin Li
- School of Nursing, Jilin University, Changchun, China
| | - Xueyan Zhang
- School of Nursing, Jilin University, Changchun, China
| | | | - Tianjiao Ma
- School of Nursing, Jilin University, Changchun, China
| | - Guichen Li
- School of Nursing, Jilin University, Changchun, China
| | - Li Chen
- School of Nursing, Jilin University, Changchun, China.,Department of Pharmacology, College of Basic Medical Sciences, Jilin University, Changchun, China
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22
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Mediating effects of cognitive reserve on the relationship between frailty and cognition in older people without dementia. Eur Geriatr Med 2022; 13:1317-1325. [PMID: 36272064 DOI: 10.1007/s41999-022-00703-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 09/29/2022] [Indexed: 12/30/2022]
Abstract
PURPOSE This study aimed to explore the potential mediating effects of cognitive reserve on the association between frailty and cognition in the older people without dementia. METHODS We performed a cross-sectional analysis of data from 3122 community-dwelling older adults (≥ 65-years-old) without dementia of the Cognitive Function and Ageing Study in Wales. A 31-item frailty index was used to assess frailty. A cognitive lifestyle score was constructed to evaluate cognitive reserve, which includes participants' educational level, occupational attainment, and engagement in social and cognitive activities in later life. Linear regression and mediation modeling were used to investigate the relationship between frailty and cognition and the mediating effects of cognitive reserve as well as social and cognitive activities, an alterable component of cognitive reserve for older adults. RESULTS Frailty was negatively associated with cognition. Cognitive reserve was a mediator of the association between frailty and global cognition (- 1.92; 95% CI: - 2.50, - 1.35), as well as individual cognitive domains, with indirect effects contributing to 13-59% of the total effects. Social and cognitive activities have smaller but similar mediating effects on these associations. CONCLUSIONS Negative effect of frailty on cognition was partially mediated by a reduction in cognitive reserve. Our results support the possibility that enhancing cognitive reserve, especially engagement in social and cognitive activities may protect cognitive health against frailty.
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Wang J, Dove A, Song R, Qi X, Ma J, Bennett DA, Xu W. Poor pulmonary function is associated with mild cognitive impairment, its progression to dementia, and brain pathologies: A community-based cohort study. Alzheimers Dement 2022; 18:2551-2559. [PMID: 35184372 PMCID: PMC10078691 DOI: 10.1002/alz.12625] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 01/10/2022] [Accepted: 01/25/2022] [Indexed: 01/31/2023]
Abstract
INTRODUCTION The relationship between pulmonary function (PF) and mild cognitive impairment (MCI), dementia, and brain pathologies remains unclear. METHODS A total of 1312 dementia-free participants, including a cognitively intact group (n = 985) and an MCI group (n = 327), were followed for up to 21 years to detect incident MCI and dementia. PF was assessed at baseline with a composite score and tertiled. Over follow-up, 540 participants underwent autopsies for neuropathological assessment. RESULTS Compared to the highest PF, the hazard ratios (95% confidence intervals [CIs]) of the lowest PF were 1.95 (1.43-2.66) for MCI in the cognitively intact group and 1.55 (1.03-2.33) for dementia in the MCI group. Low PF was further related to Alzheimer's disease pathology (odds ratio [OR] 1.32, 95% CI 1.19-1.47) and vascular pathology (OR 3.05, 95% CI 1.49-6.25). DISCUSSION Low PF increases MCI risk and accelerates MCI progression to dementia. Both neurodegenerative and vascular mechanisms may underlie the PF-dementia association.
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Affiliation(s)
- Jiao Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Tianjin Medical University, Tianjin, China.,Tianjin Key Laboratory of Environment, Nutrition and Public Health, Tianjin, China.,Center for International Collaborative Research on Environment, Nutrition and Public Health, Tianjin, China
| | - Abigail Dove
- Department of Neurobiology, Karolinska Institutet, Care Sciences and Society, Stockholm, Sweden
| | - Ruixue Song
- Department of Epidemiology and Biostatistics, School of Public Health, Tianjin Medical University, Tianjin, China.,Shandong Provincial Clinical Research Center for Emergency and Critical Care Medicine, Institute of Emergency and Critical Care Medicine of Shangdong University, Qilu Hospital of Shangdong University, Jinan, China
| | - Xiuying Qi
- Department of Epidemiology and Biostatistics, School of Public Health, Tianjin Medical University, Tianjin, China.,Tianjin Key Laboratory of Environment, Nutrition and Public Health, Tianjin, China.,Center for International Collaborative Research on Environment, Nutrition and Public Health, Tianjin, China
| | - Jun Ma
- Department of Epidemiology and Biostatistics, School of Public Health, Tianjin Medical University, Tianjin, China
| | - David A Bennett
- Rush Alzheimer's Disease Center, Rush University Medical Center, Chicago, Illinois, USA
| | - Weili Xu
- Department of Epidemiology and Biostatistics, School of Public Health, Tianjin Medical University, Tianjin, China.,Tianjin Key Laboratory of Environment, Nutrition and Public Health, Tianjin, China.,Center for International Collaborative Research on Environment, Nutrition and Public Health, Tianjin, China.,Department of Neurobiology, Karolinska Institutet, Care Sciences and Society, Stockholm, Sweden
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Potential association between frailty and pTau in community-dwelling older adults. BMC Geriatr 2022; 22:770. [PMID: 36162981 PMCID: PMC9511781 DOI: 10.1186/s12877-022-03454-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Accepted: 09/14/2022] [Indexed: 11/10/2022] Open
Abstract
Background Frailty is a geriatric syndrome characterized by a decline in physiological reserves, and multiple factors contribute to the occurrence and development of frailty. Growing evidence supports a strong link and overlap between frailty and cognitive impairment, but the mechanisms involved have not yet been fully elucidated. Aim To identify associations between 12 plasma cognition-related biomarkers and frailty in community-dwelling older adults. Methods A total of 375 participants (age 70.9 ± 5.8, 165 men and 210 women) were included in this study. Frailty was assessed using the modified Fried frailty phenotype. Participants were divided into not-frail group (n = 313) and frail group (n = 62). Twelve plasma cognitive biomarkers were detected by enzyme-linked immunosorbent assay (ELISA). Multinomial logistic regression was used to explore the association between different biomarkers and frailty status. Results Among the 12 biomarkers, only pTau was higher in frail individuals than in their not-frail peers (471.3 ± 58.1 pg/mL vs. 451.9 ± 61.1 pg/mL, p = 0.022). No other biomarkers had any significant association with frailty, including total-Tau (tTau), neurofilament light (NFL), amyloid-β 40 (Aβ40), amyloid-β 40 (Aβ42), S100 calcium binding protein B (S100B), visinin-like protein 1 (VLP-1), Alzheimer-associated neuronal thread protein (AD7cNTP), β-amyloid precursor protein (βAPP), chitinase-3-like-1 (CHI3L1), soluble complement receptor 1 (sCR1) and heart-type fatty acid binding protein (hFABP). Furthermore, pTau was compared between negative and positive subject groups for each individual criterion of frailty. Significantly higher levels of pTau were observed in those who were positive for the criteria of low grip strength (451.2 ± 61.4 pg/mL vs. 469.1 ± 57.6 pg/mL, p = 0.019), exhaustion (451.2 ± 61.6 pg/mL vs. 466.4 ± 58.4 pg/mL, p = 0.035) and low physical activity (451.1 ± 60.7 pg/mL vs. 465.7 ± 60.7 pg/mL, p = 0.034) when compared to those who were negative for each corresponding criterion. Finally, in the multivariable-adjusted analysis, the association between pTau and frailty was statistically significantly associated (OR: 1.40, 95% CI: 1.04–1.89), even after adjusting. Conclusions The present study found a potential association between pTau and frailty. Future works should monitor the longitudinal trajectory of changes of pTau concentrations in frailty older adults. A better understanding of the molecular mechanisms behind will contribute to biomarker research in frailty.
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Orchard SG, Polekhina G, Ryan J, Shah RC, Storey E, Chong TT, Lockery JE, Ward SA, Wolfe R, Nelson MR, Reid CM, Murray AM, Espinoza SE, Newman AB, McNeil JJ, Collyer TA, Callisaya ML, Woods RL. Combination of gait speed and grip strength to predict cognitive decline and dementia. ALZHEIMER'S & DEMENTIA (AMSTERDAM, NETHERLANDS) 2022; 14:e12353. [PMID: 36187193 PMCID: PMC9494608 DOI: 10.1002/dad2.12353] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Accepted: 07/03/2022] [Indexed: 11/12/2022]
Abstract
Introduction To determine whether slowed gait and weakened grip strength independently, or together, better identify risk of cognitive decline or dementia. Methods Time to walk 3 meters and grip strength were measured in a randomized placebo-controlled clinical trial involving community-dwelling, initially cognitively healthy older adults (N = 19,114). Results Over a median 4.7 years follow-up, slow gait and weak grip strength at baseline were independently associated with risk of incident dementia (hazard ratio [HR] = 1.44, 95% confidence interval [CI]: 1.19-1.73; and 1.24, 95% CI: 1.04-1.50, respectively) and cognitive decline (HR = 1.38, 95% CI: 1.26-1.51; and 1.04, 95% CI: 0.95-1.14, respectively) and when combined, were associated with 79% and 43% increase in risk of dementia and cognitive decline, respectively. Annual declines in gait and in grip over time showed similar results. Discussion Gait speed and grip strength are low-cost markers that may be useful in the clinical setting to help identify and manage individuals at greater risk, or with early signs, of dementia, particularly when measured together. Highlights Grip strength and gait speed are effective predictors and markers of dementia.Dementia risk is greater than cognitive decline risk with declines in gait or grip.Decline in gait speed, more so than in grip strength, predicts greater dementia risk.Greater risk prediction results from combining grip strength and gait speed.
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Affiliation(s)
- Suzanne G. Orchard
- School of Public Health and Preventive MedicineMonash UniversityMelbourneVictoriaAustralia
| | - Galina Polekhina
- School of Public Health and Preventive MedicineMonash UniversityMelbourneVictoriaAustralia
| | - Joanne Ryan
- School of Public Health and Preventive MedicineMonash UniversityMelbourneVictoriaAustralia
| | - Raj C. Shah
- Department of Family Medicine and Rush Alzheimer's Disease CenterRush University Medical CenterChicagoIllinoisUSA
| | - Elsdon Storey
- School of Public Health and Preventive MedicineMonash UniversityMelbourneVictoriaAustralia
| | - Trevor T.‐J. Chong
- School of Psychological SciencesMonash UniversityClaytonVictoriaAustralia,Department of NeurologyAlfred HealthMelbourneVictoriaAustralia,Department of Clinical NeurosciencesSt. Vincent's HospitalFitzroyVictoriaAustralia
| | - Jessica E. Lockery
- School of Public Health and Preventive MedicineMonash UniversityMelbourneVictoriaAustralia,Translational Immunology and Nanotechnology ThemeSchool of Health and Biomedical SciencesUniversityBundooraVictoriaAustralia
| | - Stephanie A. Ward
- School of Public Health and Preventive MedicineMonash UniversityMelbourneVictoriaAustralia,Centre for Healthy Brain Ageing (CHeBA)School of PsychiatryUniversity of New South Wales, KensingtonSydneyAustralia,Department of Geriatric MedicinePrince of Wales HospitalRandwickNew South WalesAustralia
| | - Rory Wolfe
- School of Public Health and Preventive MedicineMonash UniversityMelbourneVictoriaAustralia
| | - Mark R. Nelson
- Menzies Institute for Medical ResearchUniversity of TasmaniaHobartTasmaniaAustralia
| | - Christopher M. Reid
- School of Public Health and Preventive MedicineMonash UniversityMelbourneVictoriaAustralia,School of Public Health, Curtin University, BentleyPerthWestern AustraliaAustralia
| | - Anne M. Murray
- Berman Center for Outcomes and Clinical ResearchHennepin Health Research Institute and Hennepin Healthcare, and University of MinnesotaMinneapolisMinnesotaUSA
| | - Sara E. Espinoza
- Division of GeriatricsGerontology and Palliative MedicineSam and Ann Barshop Institute for Longevity and Aging StudiesUT Health San AntonioSan AntonioTexasUSA,Geriatrics ResearchEducation and Clinical CenterSouth Texas Veterans Health Care SystemSan AntonioTexasUSA
| | - Anne B. Newman
- Department of EpidemiologyGraduate School of Public HealthUniversity of PittsburghPittsburghPennsylvaniaUSA
| | - John J. McNeil
- School of Public Health and Preventive MedicineMonash UniversityMelbourneVictoriaAustralia
| | - Taya A. Collyer
- Peninsula Clinical SchoolCentral Clinical SchoolMonash UniversityFrankstonVictoriaAustralia
| | - Michele L. Callisaya
- Peninsula Clinical SchoolCentral Clinical SchoolMonash UniversityFrankstonVictoriaAustralia
| | - Robyn L. Woods
- School of Public Health and Preventive MedicineMonash UniversityMelbourneVictoriaAustralia
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Suprawesta L, Hwang HF, Chen SJ, Yu WY, Lin MR. Specific cognitive domains and frailty trajectories among older Taiwanese adults. Aging Ment Health 2022:1-8. [PMID: 36016472 DOI: 10.1080/13607863.2022.2116393] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
Objective: To investigate the associations of specific cognitive functions and with the frailty trajectory among older Taiwanese adults.Methods: At baseline, 730 community-dwelling older adults were recruited from outpatient clinics of a general hospital. Frailty status was defined using phenotype criteria. Global cognition was assessed using the modified Telephone Interview of Cognitive Status and Mini-Mental State Examination (MMSE). The Mattis Dementia Rating Scale (MDRS) and Digit Symbol Substitution Test were used to evaluate 6 cognitive domains: attention, initiation/perseveration, construction, conceptualization, memory, and processing speed. The group-based trajectory model was used to identify latent frailty trajectory groups and the multinomial logistic regression was to examine the relationships of specific cognitive functions with frailty trajectory.Results: Among 485 participants (168 men, 317 women, and mean age: 71.1 ± 5.5 years) completed 2 annual follow-up assessments, three frailty trajectory groups of improvement, no-change, and progression were identified. After adjusting for baseline frailty status, age, sex, global cognition, regular exercise habit, and number of comorbidities, higher scores on MDRS's initiation/perseveration (odds ratio [OR] = 0.85; 95% CI = 0.75-0.95) and attention (OR = 0.63; 95% CI = 0.38-1.00), respectively, were significantly associated with lower risk of frailty progression. Conversely, no significant association was detected between MMSE or TICSM scores and frailty improvement or progression.Conclusion: Specific cognitive functions of initiation/perseveration and attention, rather than global cognition, may be more useful to predict frailty progression, thus allowing the identification of at-risk older adults.
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Affiliation(s)
- Lalu Suprawesta
- Institute of Injury Prevention and Control, College of Public Health, Taipei Medical University, Taipei, Taiwan, R.O.C.,Department of Sport and Health Education, Faculty of Sport Science and Public Health, Universitas Pendidikan Mandalika, Kota Mataram, West Nusa Tenggara, Indonesia
| | - Hei-Fen Hwang
- Department of Nursing, National Taipei University of Nursing and Health Sciences, Taipei, Taiwan, R.O.C
| | - Sy-Jou Chen
- Department of Emergency Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, R.O.C
| | - Wen-Yu Yu
- Department of Emergency Medicine, Taipei Medical University Hospital, Taipei, Taiwan, R.O.C
| | - Mau-Roung Lin
- Institute of Injury Prevention and Control, College of Public Health, Taipei Medical University, Taipei, Taiwan, R.O.C
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Han C, An J, Chan P. Effects of cognitive ageing trajectories on multiple adverse outcomes among Chinese community-dwelling elderly population. BMC Geriatr 2022; 22:692. [PMID: 35996087 PMCID: PMC9396872 DOI: 10.1186/s12877-022-03387-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Accepted: 08/02/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Whether cognitive ageing trajectory is related to common functional deficits independent of initial cognitive function remains inconclusive. We aimed to explore the adverse health effect and potential predictive factors of distinct cognitive trajectories among Chinese older adults. METHODS Three thousand five hundred eighty-one community-dwelling older adults who completed three consecutive cognitive function examinations with the Mini-Mental State Examination (MMSE) over 5 years and were without cognitive impairment at enrollment were included. A group-based trajectory model was used to estimate cognitive ageing trajectories. Multivariable-adjusted odds ratio (OR) and 95% confidence intervals (CI) were computed with logistic regression models to identify potential baseline determinants and health effect of cognitive trajectories on various adverse outcomes. RESULTS Two distinct cognitive ageing trajectories were identified with about 5.3% of the study participants ascribed to the rapidly decreasing group. Subjects with rapidly decreasing cognition showed significantly higher odds (OR, 95%CI) of experiencing frailty (4.04, 2.77-5.86), falls (2.01, 1.05-3.70), balance impairment (4.20, 2.75-6.38), high fall risk (5.66, 2.67-11.77) based on the Tinetti total score, disability in activities of daily living (1.76, 1.19-2.56), disability in instrumental activities of daily living (1.52, 1.05-2.19), and motor cognitive risk syndrome (2.24, 1.23-3.98) compared with their steadily decreasing counterparts. Individuals with older age, low education level, no marriage, high score of rapid eye movement behavior disorders, poor physical and cognitive function at baseline were more predisposed to an accelerated cognitive decline. CONCLUSIONS Faster cognitive decline was independently associated with higher risk of multiple adverse events. Our findings put more emphasis on a routine and constant surveillance of cognitive function among community-dwelling older adults.
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Affiliation(s)
- Chao Han
- National Clinical Research Center for Geriatric Disorders, Xuanwu Hospital of Capital Medical University, Beijing, China
| | - Jing An
- National Clinical Research Center for Geriatric Disorders, Xuanwu Hospital of Capital Medical University, Beijing, China
| | - Piu Chan
- National Clinical Research Center for Geriatric Disorders, Xuanwu Hospital of Capital Medical University, Beijing, China. .,Department of Neurobiology, Neurology and Geriatrics, Beijing Institute of Geriatrics, Clinical Center for Parkinson's Disease, Key Laboratories for Neurodegenerative Diseases of the Ministry of Education; Beijing Key Laboratory for Parkinson's Disease, Parkinson Disease Center of Beijing Institute for Brain Disorders, Advanced Innovative Center for Human Brain Protection, Xuanwu Hospital of Capital Medical University, 45 Changchun Road, Beijing, 100053, China.
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Dou M, Cen Y, Zhong J, Chen G, Wei Q, Zeng Y, Lu X. Association between frailty index based on routine laboratory tests and risk of cerebral small vessel disease in elderly patients: a hospital-based observational study. Aging Clin Exp Res 2022; 34:2683-2692. [PMID: 35925517 DOI: 10.1007/s40520-022-02207-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 07/18/2022] [Indexed: 11/01/2022]
Abstract
BACKGROUND The association between frailty and cerebral small vessel disease (CSVD) remains controversial due to the use of different methods to assess frailty, including physical frailty phenotype and frailty scores containing measures of cognition. A frailty index based on laboratory tests (FI-Lab), which assesses frailty by the combination of routine laboratory measures and several vital signs, is independent of cognition and function status. We aimed to evaluate the association of FI-Lab with CSVD. METHODS An observational study was carried out in a hospitalized cohort of older patients with minor ischemic stroke or TIA. The FI-Lab was constructed by 20 routine laboratory tests, plus systolic blood pressure, diastolic blood pressure, and pulse pressure. Manifestations of CSVD including white matter hyperintensity (WMH), silent lacunar infarcts, microbleed, enlarged perivascular spaces (EPVS), as well as deep brain atrophy, were measured on magnetic resonance imaging (MRI). An ordinal score system constructed by WMH, EPVS, silent lacunar infarcts, and microbleed was used to reflect the total burden of CSVD. The associations between FI-lab and CSVD were examined by logistic regression analysis and ordinal regression. RESULTS A total of 398 patients were recruited from January 2016 to December 2018. The mean FI-Lab value was 0.26 ± 0.11. The prevalence of extensive periventricular WMH, extensive deep WMH, extensive basal ganglia EPVS, extensive centrum semiovale EPVS, silent lacunar infarcts, and deep microbleed was 26.1, 66.6, 68.6, 80.7, 32.9, and 6.5%, respectively. A higher FI-Lab value was associated with increased risks of extensive deep WMH (OR = 1.622; 95% CI, 1.253 ~ 2.100), extensive basal ganglia EPVS (OR = 1.535; 95% CI, 1.187 ~ 1.985), extensive centrum semiovale EPVS (OR = 1.584; 95% CI, 1.167 ~ 2.151), silent lacunar infarcts (OR = 1.273; 95% CI, 1.007 ~ 1.608), and higher total burden of CSVD. These associations remained after the adjustment of potential confounding factors. CONCLUSION This study demonstrated that a higher FI-Lab score might be associated with the presence of WMH, EPVS, silent lacunar infarcts, as well as severe total CSVD burden in older patients with minor stroke or TIA. The FI-Lab provides a basis for the prediction of CSVD.
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Affiliation(s)
- Miaomiao Dou
- Department of Geriatrics and Neurology, The First Affiliated Hospital of Nanjing Medical University, Guangzhou Road 300#, Nanjing, 210029, China
| | - Yan Cen
- Department of Geriatrics and Neurology, The First Affiliated Hospital of Nanjing Medical University, Guangzhou Road 300#, Nanjing, 210029, China
| | - Jie Zhong
- School of Foreign Languages, Nanjing University of Finance and Economics, Nanjing, China
| | - Guilin Chen
- Department of Radiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Qian Wei
- Department of Geriatrics and Neurology, The First Affiliated Hospital of Nanjing Medical University, Guangzhou Road 300#, Nanjing, 210029, China
| | - Yanying Zeng
- Department of Geriatrics and Neurology, The First Affiliated Hospital of Nanjing Medical University, Guangzhou Road 300#, Nanjing, 210029, China
| | - Xiaowei Lu
- Department of Geriatrics and Neurology, The First Affiliated Hospital of Nanjing Medical University, Guangzhou Road 300#, Nanjing, 210029, China.
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Diniz BS, Lima-Costa MF, Peixoto SV, Firmino JO, Torres KC, Martins-Filho OA, Teixeira-Carvalho A, Grady J, Kuchel GA, Castro-Costa E. Cognitive Frailty is Associated With Elevated Proinflammatory Markers and a Higher Risk of Mortality. Am J Geriatr Psychiatry 2022; 30:825-833. [PMID: 35227616 PMCID: PMC9177532 DOI: 10.1016/j.jagp.2022.01.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Revised: 01/25/2022] [Accepted: 01/26/2022] [Indexed: 01/05/2023]
Abstract
BACKGROUND Cognitive impairment and physical frailty are common among older adults and associated with a higher likelihood of adverse health outcomes. These two conditions frequently coexist in the same individual as cognitive frailty, yet few studies have examined the impact of such comorbidity on clinical outcomes or underlying biological mechanisms. METHODS A total of 1,340 older adults (age ≥60 years old) from the Bambui Cohort Study of Ageing, with a total follow-up of 10 years, were included in this study. Frailty was defined by the accumulation of deficit framework and cognitive impairment based on scores on the MMSE less than 22. In addition, serum IL-6 levels were measured by cytometric bead array assay. RESULTS Individuals classified with cognitive frailty had significantly higher serum IL-6 levels compared to the robust, cognitively unimpaired group. Those with cognitive frailty (aOR = 1.97 [1.18-3.27] and prefrailty and cognitive impairment (aOR = 1.83 [1.24-2.69]) had the highest mortality risk over 10 years of follow-up. Higher IL-6 levels were also independently associated with a higher mortality rate (aOR = 1.37 [1.23-1.54]). CONCLUSION Our study shows that cognitive Frailty indicates a vulnerability state and of increasing mortality risk. Our findings also suggested that proinflammatory abnormalities can be viewed as a central phenomenon underlying common age-related problems (e.g., cognitive impairment and Frailty) and outcomes (e.g., mortality).
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Affiliation(s)
- Breno S. Diniz
- UConn Center on Aging, University of Connecticut Health Center, Farmington, CT,Department of Psychiatry, School of Medicine, University of Connecticut Health
| | | | - Sérgio Viana Peixoto
- Center for Studies in Public Health and Aging (NESPE), Rene Rachou Research,Nursing School, Federal University of Minas Gerais, Belo Horizonte, MG Brazil
| | | | - Karen C.L. Torres
- Integrated Research Group on Biomarkers, Rene Rachou Research Center, Oswaldo,Faculty of Medicine, University José do Rosário Vellano, UNIFENAS, Belo Horizonte, MG Brazil
| | | | | | - James Grady
- Department of Public Health Sciences, School of Medicine, University of Connecticut Health Center, Farmington, CT USA
| | - George A. Kuchel
- UConn Center on Aging, University of Connecticut Health Center, Farmington, CT
| | - Erico Castro-Costa
- Center for Studies in Public Health and Aging (NESPE), Rene Rachou Research
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30
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Buchman AS, Bennett DA. Mixed Neuropathologies, Neural Motor Resilience and Target Discovery for Therapies of Late-Life Motor Impairment. Front Hum Neurosci 2022; 16:853330. [PMID: 35399360 PMCID: PMC8987574 DOI: 10.3389/fnhum.2022.853330] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 02/21/2022] [Indexed: 01/14/2023] Open
Abstract
By age 85, most adults manifest some degree of motor impairment. However, in most individuals a specific etiology for motor decline and treatment to modify its inexorable progression cannot be identified. Recent clinical-pathologic studies provide evidence that mixed-brain pathologies are commonly associated with late-life motor impairment. Yet, while nearly all older adults show some degree of accumulation of Alzheimer's disease and related dementias (ADRD) pathologies, the extent to which these pathologies contribute to motor decline varies widely from person to person. Slower or faster than expected motor decline in the presence of brain injury and/or pathology has been conceptualized as more or less "resilience" relative to the average person This suggests that other factors, such as lifestyles or other neurobiologic indices may offset or exacerbate the negative effects of pathologies via other molecular pathways. The mechanisms underlying neural motor resilience are just beginning to be illuminated. Unlike its cousin, cognitive resilience which is restricted to neural mechanisms above the neck, the motor system extends the total length of the CNS and beyond the CNS to reach muscle and musculoskeletal structures, all of which are crucial for motor function. Building on prior work, we propose that by isolating motor decline unrelated to neuropathologies and degeneration, investigators can identify genes and proteins that may provide neural motor resilience. Elucidating these molecular mechanisms will advance our understanding of the heterogeneity of late-life motor impairment. This approach will also provide high value therapeutic targets for drug discovery of therapies that may offset the negative motor consequences of CNS pathologies that are currently untreatable.
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Affiliation(s)
- Aron S. Buchman
- Rush Alzheimer’s Disease Center, Rush University Medical Center, Chicago, IL, United States,Department of Neurological Sciences, Rush University Medical Center, Chicago, IL, United States,*Correspondence: Aron S. Buchman,
| | - David A. Bennett
- Rush Alzheimer’s Disease Center, Rush University Medical Center, Chicago, IL, United States,Department of Neurological Sciences, Rush University Medical Center, Chicago, IL, United States
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31
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Guillotin S, Vallet A, Lorthois S, Cestac P, Schmidt E, Delcourt N. Association between Homocysteine, Frailty and Biomechanical Response of the CNS in NPH-suspected Patients. J Gerontol A Biol Sci Med Sci 2022; 77:1335-1343. [PMID: 35325129 DOI: 10.1093/gerona/glac074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Indexed: 11/12/2022] Open
Abstract
Frailty is a geriatric syndrome that combines physiological decline, disruptions of homeostatic mechanisms across multiple physiologic systems and thus, strong vulnerability to further pathological stress. Previously, we provided the first evidence that increased risk of poor health outcomes, as quantified by a frailty index, is associated with an alteration of the central nervous system (CNS) biomechanical response to blood pulsatility. In this study, we explored correlation between fourteen biological parameters, the CNS elastance coefficient and frailty index. We included 60 adults (52-92 years) suspected of normal pressure hydrocephalus (NPH) and presenting with markers of multiple co-existing brain pathologies, including Parkinson disease (PD), Alzheimer disease (AD) and vascular dementia. We showed that the homocysteine (Hcy) level was independently and positively associated with both frailty index and the CNS elastance coefficient (adjusted R² of 10% and 6%). We also demonstrated that creatinine clearance and folate level were independently associated with Hcy level. Based on previous literature results describing the involvement of Hcy in endothelial dysfunction, glial activation and neurodegeneration, we discuss how Hcy could contribute to the altered biomechanical response of the CNS and frailty.
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Affiliation(s)
- Sophie Guillotin
- Center for Epidemiology and Research in POPulation health (CERPOP), University of Toulouse, Toulouse, France.,Poison Control Center, Toulouse-Purpan University Hospital, Toulouse, France
| | - Alexandra Vallet
- Department of Mathematics, Faculty of Mathematics and Natural Sciences, University of Oslo, Oslo, Norway
| | - Sylvie Lorthois
- Institut de Mécanique des Fluides de Toulouse (IMFT), University of Toulouse, CNRS, Toulouse, France
| | - Philippe Cestac
- Center for Epidemiology and Research in POPulation health (CERPOP), University of Toulouse, Toulouse, France
| | - Eric Schmidt
- Toulouse NeuroImaging Center (ToNIC), University of Toulouse, INSERM, UPS, Toulouse, France.,Department of Neurosurgery, Toulouse-Purpan University Hospital, Toulouse, France
| | - Nicolas Delcourt
- Poison Control Center, Toulouse-Purpan University Hospital, Toulouse, France.,Toulouse NeuroImaging Center (ToNIC), University of Toulouse, INSERM, UPS, Toulouse, France
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Lu WH, Giudici KV, Guyonnet S, Aggarwal G, Nguyen AD, Morley JE, Vellas B, de Souto Barreto P. Associations of plasma neurofilament light chain and progranulin with frailty in older adults. J Am Geriatr Soc 2021; 70:1236-1243. [PMID: 34908159 DOI: 10.1111/jgs.17604] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 11/16/2021] [Accepted: 11/21/2021] [Indexed: 12/24/2022]
Abstract
BACKGROUND In previous studies, plasma neurofilament light chain (NfL) and progranulin (PGRN) levels are associated with cognitive and physical impairment in older individuals. However, evidence of their relationships with frailty is lacking. This study aims to explore the associations of plasma NfL and PGRN levels with frailty in community-dwelling older adults. METHODS We included 507 older adults (mean [standard deviation] age, 76.7 [4.5] years) with plasma NfL and PGRN measurements from the Multidomain Alzheimer Preventive Trial (MAPT). The timepoint of biomarker measurements, either 12 or 24 months after study enrollment, was defined as the baseline for each participant. Frailty phenotype (robust, pre-frail, and frail) was assessed at 12, 24, 36, 48, and 60 months by Fried's frailty criteria. The cross-sectional associations between plasma neurodegenerative biomarkers and frailty severity were examined using logistic regressions. We further used Cox proportional hazard models to evaluate the associations between plasma biomarkers and incident frailty among robust or pre-frail participants at baseline (n = 403). RESULTS At baseline, participants with high plasma NfL levels (>93.11 pg/ml [the upper quartile]) had a higher likelihood of pre-frailty or frailty compared to their normal NfL counterparts (odds ratio = 1.68; 95% confidence interval = 1.10-2.57); however, this association did not remain significant after controlling for covariates. Neither NfL nor PGRN levels showed prospective associations with incident frailty over 4 years. CONCLUSIONS This study failed to find associations of circulating NfL and PGRN levels with frailty among community-dwelling older adults in adjusted analyses. Whether plasma neurodegenerative markers serve as potential biomarkers of frailty requires further investigation.
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Affiliation(s)
- Wan-Hsuan Lu
- Gerontopole of Toulouse, Institute of Ageing, Toulouse University Hospital (CHU Toulouse), Toulouse, France.,Maintain Aging Research Team, CERPOP, Inserm, Université Paul Sabatier, Toulouse, France
| | - Kelly Virecoulon Giudici
- Gerontopole of Toulouse, Institute of Ageing, Toulouse University Hospital (CHU Toulouse), Toulouse, France
| | - Sophie Guyonnet
- Gerontopole of Toulouse, Institute of Ageing, Toulouse University Hospital (CHU Toulouse), Toulouse, France.,Maintain Aging Research Team, CERPOP, Inserm, Université Paul Sabatier, Toulouse, France
| | - Geetika Aggarwal
- Division of Geriatric Medicine, Saint Louis University School of Medicine, St. Louis, Missouri, USA.,Henry and Amelia Nasrallah Center for Neuroscience, Saint Louis University, St. Louis, Missouri, USA
| | - Andrew D Nguyen
- Division of Geriatric Medicine, Saint Louis University School of Medicine, St. Louis, Missouri, USA.,Henry and Amelia Nasrallah Center for Neuroscience, Saint Louis University, St. Louis, Missouri, USA
| | - John E Morley
- Division of Geriatric Medicine, Saint Louis University School of Medicine, St. Louis, Missouri, USA
| | - Bruno Vellas
- Gerontopole of Toulouse, Institute of Ageing, Toulouse University Hospital (CHU Toulouse), Toulouse, France.,Maintain Aging Research Team, CERPOP, Inserm, Université Paul Sabatier, Toulouse, France
| | - Philipe de Souto Barreto
- Gerontopole of Toulouse, Institute of Ageing, Toulouse University Hospital (CHU Toulouse), Toulouse, France.,Maintain Aging Research Team, CERPOP, Inserm, Université Paul Sabatier, Toulouse, France
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33
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Hayajneh AA, Hammouri H, Rababa M, Al-Rawashedeh S, Wallace DC, Alsatari ES. Frailty and Its Correlates in Cognitively Intact Community-Dwelling Older Adults. Dement Geriatr Cogn Disord 2021; 50:357-363. [PMID: 34569493 DOI: 10.1159/000519054] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Accepted: 08/15/2021] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Frailty syndrome is characterized by a decline in physiological and psychological reserve and may be associated with poor health outcomes. OBJECTIVES The current study explored frailty and its correlates among cognitively intact community-dwelling older adults. METHODS A secondary analysis of data collected from 109 community-dwelling older adults who are cognitively intact was conducted for the purpose of this study. The Arabic versions of the culturally adapted Tilburg Frailty Indicator, the Montreal Cognitive Assessment, the Geriatric Depression Scale, and the Short Form-36 Quality of Life (QOL) survey. Multiple linear regression was used to examine the relationships between frailty and depression. RESULTS The results indicated a high prevalence of frailty (78%) and depression (38%) among cognitively intact community-dwelling older adults. Frailty was found to be associated with increased age, being single or illiterate, living alone, having a high number of comorbid conditions, having high rate of depression, and having poor QOL. CONCLUSION High prevalence of frailty is associated with high depression scores, a high number of comorbid conditions, and poor QOL among cognitively intact community-dwelling older adults.
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Affiliation(s)
- Audai A Hayajneh
- Adult Health Nursing Department, Faculty of Nursing, Jordan University of Science and Technology, Irbid, Jordan
| | - Hanan Hammouri
- Department of Mathematics and Statistics, Jordan University of Science and Technology, Irbid, Jordan
| | - Mohammad Rababa
- Adult Health Nursing Department, Faculty of Nursing, Jordan University of Science and Technology, Irbid, Jordan
| | - Sami Al-Rawashedeh
- Department of Community and Mental Health, Faculty of Nursing, The Hashemite University, Zarqa, Jordan
| | - Debra C Wallace
- Department of Family and Community Nursing, University of North Carolina at Greensboro, Greensboro, North Carolina, USA
| | - Eman S Alsatari
- Faculty of Nursing, Jordan University of Science and Technology, Irbid, Jordan
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Kim H, Kim SH, Jeong W, Jang SI, Park EC, Kim Y. Association between change in handgrip strength and cognitive function in Korean adults: a longitudinal panel study. BMC Geriatr 2021; 21:671. [PMID: 34852792 PMCID: PMC8638365 DOI: 10.1186/s12877-021-02610-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Accepted: 11/04/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Muscular function, such as handgrip strength, has been suggested as an associated factor for cognitive impairment. This study investigated the association between temporal change in handgrip strength and cognitive function using longitudinal, nationwide data from Korean older adults. METHODS Our study used data from the Korean Longitudinal Study of Aging (KLoSA). The analysis covered 6696 participants who had taken the handgrip strength test and Mini-Mental State Examination (MMSE) from 2006 to 2018. We adopted general estimating equations to assess the temporal effect of handgrip strength change on cognitive function. RESULTS After adjusting for covariates, we observed an association between handgrip strength and low MMSE scores (β = - 0.3142 in men, β = - 0.2685 in women). Handgrip strength as a continuous variable was positively correlated with MMSE scores after adjustment (β = 0.0293 in men, β = 0.0347 in women). The group with decreased handgrip strength over time also showed greater odds for mild cognitive impairment (OR = 1.23, 95%CI = 1.05-1.27 in men, OR = 1.15, 95%CI = 1.05-1.27 in women) and dementia (OR = 1.393, 95%CI = 1.18-1.65 in men, OR = 1.19, 95%CI = 1.08-1.32 in women). CONCLUSIONS This study identified the relationship between handgrip strength change and cognitive function among South Korean adults. According to our large, longitudinal sample, decreasing handgrip strength was associated with decline in cognitive function.
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Affiliation(s)
- Hyunkyu Kim
- Department of Preventive Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea.,Institute of Health Services Research, Yonsei University, Seoul, Republic of Korea.,Department of Psychiatry, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Seung Hoon Kim
- Department of Preventive Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea.,Institute of Health Services Research, Yonsei University, Seoul, Republic of Korea
| | - Wonjeong Jeong
- Institute of Health Services Research, Yonsei University, Seoul, Republic of Korea.,Department of Public Health, Graduate School, Yonsei University, Seoul, Republic of Korea
| | - Sung-In Jang
- Department of Preventive Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea.,Institute of Health Services Research, Yonsei University, Seoul, Republic of Korea
| | - Eun-Cheol Park
- Department of Preventive Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea.,Institute of Health Services Research, Yonsei University, Seoul, Republic of Korea
| | - Youseok Kim
- Institute of Health Services Research, Yonsei University, Seoul, Republic of Korea. .,Department of Hospital administration, Graduate School of Public Health, Yonsei University, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea.
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Wallace LMK, Theou O, Godin J, Ward DD, Andrew MK, Bennett DA, Rockwood K. 10-year frailty trajectory is associated with Alzheimer's dementia after considering neuropathological burden. Aging Med (Milton) 2021; 4:250-256. [PMID: 34964005 PMCID: PMC8711220 DOI: 10.1002/agm2.12187] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Revised: 12/02/2021] [Accepted: 12/02/2021] [Indexed: 12/25/2022] Open
Abstract
MAIN PROBLEM Frailty is an established risk factor for cognitive decline and Alzheimer's disease. Few studies have examined the longitudinal relationship between frailty and cognition. METHODS Participants of Rush Memory and Aging project (n = 625, 67.5% female, 83.2 ± 5.9 years at baseline) underwent annual clinical evaluations (average follow-up 5.6 ± 3.7 years) followed by neuropathologic assessment after death. A frailty index was calculated from 41 health variables at each evaluation. Clinical diagnosis of MCI and/or dementia was ascertained by clinical data review (blinded to neuropathological data) after death. Age, sex, education, and neuropathological burden (10-item index) were evaluated as covariates. Frailty trajectories were calculated using a mixed effects model. RESULTS At baseline the mean frailty index = 0.24 ± 0.12 and increased at rate of 0.026 or ~1 deficit per year. At death, 27.7% of the sample had MCI, and 38.6% had dementia. Frailty trajectories were significantly steeper among those individuals who were ultimately diagnosed as clinically impaired prior to death, even after controlling for age, sex, education, and neuropathological index. CONCLUSIONS Findings suggest a strong link between health status (frailty index) and dementia, even after considering neuropathology. Frailty trajectories were associated with risk for MCI and dementia, underscoring the importance of addressing frailty to manage dementia risk.
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Affiliation(s)
- Lindsay M. K. Wallace
- Geriatric Medicine ResearchCentre for Health Care of the ElderlyNova Scotia Health AuthorityHalifaxNSCanada
- Department of MedicineDalhousie UniversityHalifaxNSCanada
| | - Olga Theou
- Geriatric Medicine ResearchCentre for Health Care of the ElderlyNova Scotia Health AuthorityHalifaxNSCanada
- Department of MedicineDalhousie UniversityHalifaxNSCanada
- School of PhysiotherapyDalhousie UniversityHalifaxNSCanada
| | - Judith Godin
- Geriatric Medicine ResearchCentre for Health Care of the ElderlyNova Scotia Health AuthorityHalifaxNSCanada
- Department of MedicineDalhousie UniversityHalifaxNSCanada
| | - David D. Ward
- Geriatric Medicine ResearchCentre for Health Care of the ElderlyNova Scotia Health AuthorityHalifaxNSCanada
- Department of MedicineDalhousie UniversityHalifaxNSCanada
| | - Melissa K. Andrew
- Geriatric Medicine ResearchCentre for Health Care of the ElderlyNova Scotia Health AuthorityHalifaxNSCanada
- Department of MedicineDalhousie UniversityHalifaxNSCanada
| | - David A. Bennett
- Rush Alzheimer’s Disease CenterRush University Medical CenterChicagoIllinoisUSA
| | - Kenneth Rockwood
- Geriatric Medicine ResearchCentre for Health Care of the ElderlyNova Scotia Health AuthorityHalifaxNSCanada
- Department of MedicineDalhousie UniversityHalifaxNSCanada
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Bai G, Wang Y, Kuja-Halkola R, Li X, Tomata Y, Karlsson IK, Pedersen NL, Hägg S, Jylhävä J. Frailty and the risk of dementia: is the association explained by shared environmental and genetic factors? BMC Med 2021; 19:248. [PMID: 34657626 PMCID: PMC8522144 DOI: 10.1186/s12916-021-02104-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 08/23/2021] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Frailty has been identified as a risk factor for cognitive impairment and dementia. However, it is not known whether familial factors, such as genetics and shared environmental factors, underlie this association. We analyzed the association between frailty and the risk of dementia in a large twin cohort and examined the role of familial factors in the association. METHODS The Rockwood frailty index (FI) based on 44 health deficits was used to assess frailty. The population-level association between FI and the risk of all-cause dementia was analyzed in 41,550 participants of the Screening Across the Lifespan Twin (SALT) study (full sample, aged 41-97 years at baseline), using Cox and competing risk models. A subsample of 10,487 SALT participants aged 65 and older who received a cognitive assessment (cognitive sample) was used in a sensitivity analysis to assess the effect of baseline cognitive level on the FI-dementia association. To analyze the influence of familial effects on the FI-dementia association, a within-pair analysis was performed. The within-pair model was also used to assess whether the risk conferred by frailty varies by age at FI assessment. RESULTS A total of 3183 individuals were diagnosed with dementia during the 19-year follow-up. A 10% increase in FI was associated with an increased risk of dementia (hazard ratio [HR] 1.17 (95% confidence interval [CI] 1.07, 1.18)) in the full sample adjusted for age, sex, education, and tobacco use. A significant association was likewise found in the cognitive sample, with an HR of 1.13 (95% CI 1.09, 1.20), adjusted for age, sex, and cognitive level at baseline. The associations were not attenuated when adjusted for APOE ɛ4 carrier status or considering the competing risk of death. After adjusting for familial effects, we found no evidence for statistically significant attenuation of the effect. The risk conferred by higher FI on dementia was constant after age 50 until very old age. CONCLUSIONS A higher level of frailty predicts the risk of dementia and the association appears independent of familial factors. Targeting frailty might thus contribute to preventing or delaying dementia.
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Affiliation(s)
- Ge Bai
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Nobels väg 12A, 17165, Stockholm, Sweden
| | - Yunzhang Wang
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Nobels väg 12A, 17165, Stockholm, Sweden
| | - Ralf Kuja-Halkola
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Nobels väg 12A, 17165, Stockholm, Sweden
| | - Xia Li
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Nobels väg 12A, 17165, Stockholm, Sweden
| | - Yasutake Tomata
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Nobels väg 12A, 17165, Stockholm, Sweden
- School of Nutrition and Dietetics, Faculty of Health and Social Services, Kanagawa University of Human Services, Yokosuka, Japan
| | - Ida K Karlsson
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Nobels väg 12A, 17165, Stockholm, Sweden
- Institute of Gerontology and Aging Research Network - Jönköping (ARN-J), School of Health and Welfare, Jönköping University, Jönköping, Sweden
| | - Nancy L Pedersen
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Nobels väg 12A, 17165, Stockholm, Sweden
| | - Sara Hägg
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Nobels väg 12A, 17165, Stockholm, Sweden
| | - Juulia Jylhävä
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Nobels väg 12A, 17165, Stockholm, Sweden.
- Faculty of Social Sciences (Health Sciences) and Gerontology Research Center (GEREC), University of Tampere, Tampere, Finland.
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Beeri MS, Leurgans SE, Bennett DA, Barnes LL, Buchman AS. Diverse Motor Performances Are Related to Incident Cognitive Impairment in Community-Dwelling Older Adults. Front Aging Neurosci 2021; 13:717139. [PMID: 34658835 PMCID: PMC8514826 DOI: 10.3389/fnagi.2021.717139] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Accepted: 08/30/2021] [Indexed: 02/02/2023] Open
Abstract
Objective: Late-life cognitive impairment is heterogeneous. This study examined to what extent varied motor performances are differentially associated with incident Alzheimer's dementia (AD) and incident mild cognitive impairment (MCI) in older adults. Design: Nested substudy. Setting: Communities across metropolitan Chicago. Participants: African American (N = 580) and European American (N = 580) adults without dementia, propensity-balanced by age (mean = 73.2; SD = 6.0), sex (78.4% women), education (mean = 15.6; SD = 3.3) and number of follow ups. Measurements: Cognitive status was assessed annually and based in part on a composite measure of global cognition including 17 cognitive tests. A global motor score was based on 10 motor performances from which 4 motor domains were computed including hand dexterity, hand strength, gait function, and leg strength. Results: During 7 years of follow-up, 166 of 1,160 (14.3%) developed AD. In a proportional hazards model controlling for age, sex, education, and race, each 1-SD higher baseline global motor score was associated with about a 20% reduction in the risk of AD (hazard ratio: 0.81; 95% CI: 0.68, 0.97). Higher baseline motor function was also associated with decreased risk of incident MCI (hazard ratio: 0.79; 95% CI: 0.68, 0.92). Hand dexterity, hand strength and gait function but not leg strength were associated with incident AD and MCI. When including all four motor domains in the same model, results remained the same for incident MCI, while for incident AD, the association with hand strength remained significant. Conclusion: Diverse motor performances are associated with late-life cognitive impairment. Further work is needed to identify specific motor performances that may differentiate adults at risk for future MCI or AD dementia.
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Affiliation(s)
- Michal Schnaider Beeri
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, United States
- Sheba Medical Center, The Joseph Sagol Neuroscience Center, Ramat Gan, Israel
| | - Sue E. Leurgans
- Rush Alzheimer’s Disease Center, Rush University Medical Center, Chicago, IL, United States
- Department of Neurological Sciences, Rush University Medical Center, Chicago, IL, United States
| | - David A. Bennett
- Rush Alzheimer’s Disease Center, Rush University Medical Center, Chicago, IL, United States
- Department of Neurological Sciences, Rush University Medical Center, Chicago, IL, United States
| | - Lisa L. Barnes
- Rush Alzheimer’s Disease Center, Rush University Medical Center, Chicago, IL, United States
- Department of Neurological Sciences, Rush University Medical Center, Chicago, IL, United States
- Department of Psychiatry and Behavioral Science, Rush University Medical Center, Chicago, IL, United States
| | - Aron S. Buchman
- Rush Alzheimer’s Disease Center, Rush University Medical Center, Chicago, IL, United States
- Department of Neurological Sciences, Rush University Medical Center, Chicago, IL, United States
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Akiyama J, Ohta M. Hormonal and Neurological Aspects of Dog Walking for Dog Owners and Pet Dogs. Animals (Basel) 2021; 11:ani11092732. [PMID: 34573698 PMCID: PMC8465204 DOI: 10.3390/ani11092732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 09/03/2021] [Accepted: 09/15/2021] [Indexed: 11/16/2022] Open
Abstract
The hormone oxytocin is involved in various aspects of the relationship between humans and animals. Dog walking is a common activity for dog owners and their dogs. The walk, of course, should be good for the health of the dog as well as its owner. In Experiment I, we assessed whether salivary oxytocin and cortisol in dog owners changed because of walking their dogs. Ten owners walked with their dogs and walked alone. Similar to other previous research, walking with a dog did not significantly change oxytocin and cortisol. Therefore, in Experiment II, we investigated the effect of dog walking on brain noradrenergic and GABAergic neural activity, as indicated by salivary MHPG and GABA, in 14 dog owners. Walking with a dog reduced salivary MHPG compared to walking alone, and MHPG was correlated negatively with GABA. Thus, dog walking activated GABAergic nerves in the brain and suppressed noradrenergic nerves, effectively relieving stress.
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Affiliation(s)
- Junko Akiyama
- Department of Animal Health Technology, Yamazaki University of Animal Health Technology, Tokyo 192-0364, Japan;
| | - Mitsuaki Ohta
- School of Veterinary Medicine, Azabu University, Sagamihara-shi 252-5201, Japan
- Correspondence:
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Oberndorfer M, Mogg C, Haider S, Grabovac I, Drgac D, Dorner T. Partner loss and its effect on frailty trajectories: results from the 13-year follow-up Survey of Health, Ageing and Retirement in Europe (SHARE). J Epidemiol Community Health 2021; 76:209-215. [PMID: 34452953 DOI: 10.1136/jech-2021-216637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Accepted: 08/05/2021] [Indexed: 11/04/2022]
Abstract
BACKGROUND Frailty is a geriatric syndrome closely linked to a variety of adverse health outcomes. Thus, it is important to identify factors associated with the development of frailty. It was the aim of this study to examine, if, and to what extent partner loss, a highly stressful life event, affects frailty trajectories of community dwelling adults aged 50 or older. METHODS Using six waves of panel data from the Survey of Health, Ageing and Retirement in Europe (SHARE), we investigated the effect of partner loss on frailty trajectories estimating growth curve models. Our sample included 183 502 observations of 83 494 community-dwelling individuals aged 50 or older from 21 European countries collected between 2004 and 2017. Frailty was measured using the validated sex-specific SHARE-Frailty-Instrument including muscular weakness, unintended weight loss, decrease in walking capacity, low physical activity and exhaustion. RESULTS Our sample contained 79 874 participants who lived in a partnership during their entire observational period and 3620 participants who lost their partner during their observational period. Both men (β=0.184 (95% CI: -0.017 to 0.386), p=0.073) and women (β=0.237 (95% CI: 0.106 to 0.369), p<0.001) showed initial effects of partner loss on frailty, but while only women gradually recovered over time (β=-0.023 (95% CI: -0.039 to -0.008), p=0.002), among men, the effect of partner loss persisted (β<0.001 (95% CI: -0.029 to 0.029), p=0.998). CONCLUSION This study revealed that partner loss is followed by elevated frailty. However, while women's frailty tended to recover from partner loss over time, men's frailty remained elevated. Notable individual differences in the response of frailty trajectories to partner loss suggest the existence of effect modifiers.
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Affiliation(s)
- Moritz Oberndorfer
- Department of Social and Preventive Medicine, Medical University of Vienna, Center for Public Health, Vienna, Austria
| | - Christina Mogg
- Department of Sport Science, University of Vienna, Vienna, Austria
| | - Sandra Haider
- Department of Social and Preventive Medicine, Medical University of Vienna, Center for Public Health, Vienna, Austria
| | - Igor Grabovac
- Department of Social and Preventive Medicine, Medical University of Vienna, Center for Public Health, Vienna, Austria
| | - Deborah Drgac
- Department of Social and Preventive Medicine, Medical University of Vienna, Center for Public Health, Vienna, Austria
| | - Thomas Dorner
- Department of Social and Preventive Medicine, Medical University of Vienna, Center for Public Health, Vienna, Austria.,Karl-Landsteiner Institute for Health Promotion Research, BVAEB-Health Promotion Facility Resilienzpark Sitzenberg, Sitzenberg-Reidling, Austria
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Zammit AR, Piccinin AM, Duggan EC, Koval A, Clouston S, Robitaille A, Brown CL, Handschuh P, Wu C, Jarry V, Finkel D, Graham RB, Muniz-Terrera G, Praetorius Björk M, Bennett D, Deeg DJ, Johansson B, Katz MJ, Kaye J, Lipton RB, Martin M, Pederson NL, Spiro A, Zimprich D, Hofer SM. A Coordinated Multi-study Analysis of the Longitudinal Association Between Handgrip Strength and Cognitive Function in Older Adults. J Gerontol B Psychol Sci Soc Sci 2021; 76:229-241. [PMID: 31187137 DOI: 10.1093/geronb/gbz072] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Indexed: 12/11/2022] Open
Abstract
OBJECTIVE Handgrip strength, an indicator of overall muscle strength, has been found to be associated with slower rate of cognitive decline and decreased risk for cognitive impairment and dementia. However, evaluating the replicability of associations between aging-related changes in physical and cognitive functioning is challenging due to differences in study designs and analytical models. A multiple-study coordinated analysis approach was used to generate new longitudinal results based on comparable construct-level measurements and identical statistical models and to facilitate replication and research synthesis. METHODS We performed coordinated analysis on 9 cohort studies affiliated with the Integrative Analysis of Longitudinal Studies of Aging and Dementia (IALSA) research network. Bivariate linear mixed models were used to examine associations among individual differences in baseline level, rate of change, and occasion-specific variation across grip strength and indicators of cognitive function, including mental status, processing speed, attention and working memory, perceptual reasoning, verbal ability, and learning and memory. Results were summarized using meta-analysis. RESULTS After adjustment for covariates, we found an overall moderate association between change in grip strength and change in each cognitive domain for both males and females: Average correlation coefficient was 0.55 (95% CI = 0.44-0.56). We also found a high level of heterogeneity in this association across studies. DISCUSSION Meta-analytic results from nine longitudinal studies showed consistently positive associations between linear rates of change in grip strength and changes in cognitive functioning. Future work will benefit from the examination of individual patterns of change to understand the heterogeneity in rates of aging and health-related changes across physical and cognitive biomarkers.
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Affiliation(s)
- Andrea R Zammit
- Saul B. Korey Department of Neurology, Albert Einstein College of Medicine, Bronx, New York
| | | | - Emily C Duggan
- Department of Psychology, University of Victoria, Canada
| | - Andriy Koval
- Department of Psychology, University of Victoria, Canada
| | - Sean Clouston
- Department of Family, Population and Preventive Medicine, Stony Brook University, New York
| | - Annie Robitaille
- Department of Psychology, Université du Québec à Montréal, Canada
| | | | - Philipp Handschuh
- Department of Developmental Psychology, Institute of Psychology and Education, Ulm University, Germany
| | - Chenkai Wu
- Global Health Research Center, Duke Kunshan University, China.,Department of Epidemiology and Community Health, School of Health Sciences and Practice, New York Medical College, Valhalla.,School of Biological and Population Health Sciences, Oregon State University, Corvallis
| | - Valérie Jarry
- Research Center on Aging, Integrated Academic Health Center and Social Services in the Eastern Townships, Sherbrooke, Canada.,Faculty of Medicine and Health Sciences, University of Sherbrooke, Canada
| | - Deborah Finkel
- Department of Psychology, Indiana University Southeast, New Albany
| | | | | | - Marcus Praetorius Björk
- Department of Psychology, University of Gothenburg, Sweden.,Centre for Ageing and Health, AgeCap, University of Gothenburg, Sweden
| | - David Bennett
- Rush Alzheimer's Disease Center, Rush University Medical Center, Chicago, Illinois
| | - Dorly J Deeg
- Department of Epidemiology and Biostatistics, VU University Medical Center, Amsterdam, the Netherlands
| | - Boo Johansson
- Department of Psychology, University of Gothenburg, Sweden.,Centre for Ageing and Health, AgeCap, University of Gothenburg, Sweden
| | - Mindy J Katz
- Saul B. Korey Department of Neurology, Albert Einstein College of Medicine, Bronx, New York
| | - Jeffrey Kaye
- Department of Neurology, Oregon Health & Science University, Portland
| | - Richard B Lipton
- Saul B. Korey Department of Neurology, Albert Einstein College of Medicine, Bronx, New York
| | - Mike Martin
- Department of Psychology, University of Zurich, Switzerland
| | - Nancy L Pederson
- Department of Medical Epidemiology and Biostatistics, Karolinska Institute, Stockholm, Sweden
| | - Avron Spiro
- Department of Psychiatry, Boston University School of Medicine, Massachusetts.,Massachusetts Veterans Epidemiology Research and Information Center (MAVERIC), Department of Veterans Affairs Boston Healthcare System, Massachusetts.,Department of Epidemiology, Boston University School of Public Health, Massachusetts
| | - Daniel Zimprich
- Department of Developmental Psychology, Institute of Psychology and Education, Ulm University, Germany
| | - Scott M Hofer
- Department of Psychology, University of Victoria, Canada.,Department of Epidemiology and Biostatistics, VU University Medical Center, Amsterdam, the Netherlands
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Gao L, Li P, Gaba A, Musiek E, Ju YS, Hu K. Fractal motor activity regulation and sex differences in preclinical Alzheimer's disease pathology. ALZHEIMER'S & DEMENTIA (AMSTERDAM, NETHERLANDS) 2021; 13:e12211. [PMID: 34189248 PMCID: PMC8220856 DOI: 10.1002/dad2.12211] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 05/18/2021] [Accepted: 05/19/2021] [Indexed: 11/05/2022]
Abstract
INTRODUCTION Degradation in fractal motor activity regulation (FMAR), a measure of multiscale self-similarity of motor control, occurs in aging and accelerates with clinical progression to Alzheimer's disease (AD). Whether FMAR changes occur during the pre-symptomatic phase of the disease in women and men remains unknown. METHODS FMAR was assessed in cognitively normal participants (n = 178) who underwent 7 to 14 days of home actigraphy. Preclinical AD pathology was determined by amyloid imaging-Pittsburgh compound B (PiB) and cerebrospinal fluid (CSF) phosphorylated-tau181 (p-tau) to amyloid beta 42 (Aβ42) ratio. RESULTS Degradation in daytime FMAR was overall significantly associated with preclinical amyloid plaque pathology via PiB+ imaging (beta coefficient β = 0.217, standard error [SE] = 0.101, P = .034) and increasing CSF tau181-Aβ42 ratio (β = 0.220, SE = 0.084, P = .009). In subset analysis by sex, the effect sizes were significant in women for PiB+ (β = 0.279, SE = 0.112, P = .015) and CSF (β = 0.245, SE = 0.094, P = .011) but not in men (both Ps > .05). These associations remained after inclusion of daily activity level, apolipoprotein E ε4 carrier status, and rest/activity patterns. DISCUSSION Changes in daytime FMAR from actigraphy appear to be present in women early in preclinical AD. This may be a combination of earlier pathology changes in females reflected in daytime FMAR, and a relatively underpowered male group. Further studies are warranted to test FMAR as an early noncognitive physiological biomarker that precedes the onset of cognitive symptoms.
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Affiliation(s)
- Lei Gao
- Department of Anesthesia, Critical Care and Pain MedicineMassachusetts General HospitalHarvard Medical SchoolBostonMassachusettsUSA
- Medical Biodynamics ProgramBrigham and Women's HospitalBostonMassachusettsUSA
- Division of Sleep MedicineHarvard Medical SchoolBostonMassachusettsUSA
| | - Peng Li
- Medical Biodynamics ProgramBrigham and Women's HospitalBostonMassachusettsUSA
- Division of Sleep MedicineHarvard Medical SchoolBostonMassachusettsUSA
| | - Arlen Gaba
- Medical Biodynamics ProgramBrigham and Women's HospitalBostonMassachusettsUSA
| | - Erik Musiek
- Department of NeurologyWashington University School of MedicineSt. LouisMissouriUSA
- Knight Alzheimer's Disease Research CenterWashington University School of MedicineSt. LouisMissouriUSA
- Hope Center for Neurological DisordersWashington University School of MedicineSt. LouisMissouriUSA
| | - Yo‐El S. Ju
- Department of NeurologyWashington University School of MedicineSt. LouisMissouriUSA
- Hope Center for Neurological DisordersWashington University School of MedicineSt. LouisMissouriUSA
| | - Kun Hu
- Medical Biodynamics ProgramBrigham and Women's HospitalBostonMassachusettsUSA
- Division of Sleep MedicineHarvard Medical SchoolBostonMassachusettsUSA
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Beeri MS, Leugrans SE, Delbono O, Bennett DA, Buchman AS. Sarcopenia is associated with incident Alzheimer's dementia, mild cognitive impairment, and cognitive decline. J Am Geriatr Soc 2021; 69:1826-1835. [PMID: 33954985 DOI: 10.1111/jgs.17206] [Citation(s) in RCA: 79] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Revised: 03/10/2021] [Accepted: 03/19/2021] [Indexed: 12/21/2022]
Abstract
OBJECTIVE We examined whether sarcopenia is associated with the occurrence of late-life cognitive impairment. METHODS Nondemented older adults (N = 1175) underwent annual testing with 17 cognitive tests summarized as a global cognitive score. A composite sarcopenia score was constructed based on muscle mass measured with bioelectrical impedance and muscle function based on grip strength. Cox proportional hazard models were employed to examine associations of sarcopenia with incident Alzheimer's dementia (AD) and incident mild cognitive impairment (MCI). Linear mixed-effect models determined the association of sarcopenia with cognitive decline. All models controlled for age, sex, education, race, and height squared. RESULTS Average follow-up was 5.6 years. More severe sarcopenia at baseline was associated with a higher risk of incident AD (hazard ratio [HR], 1.50 [95% confidence interval 1.20-1.86]; p < 0.001) and of MCI (1.21 [1.01-1.45]; 0.04) and a faster rate of cognitive decline (estimate = -0.013; p = 0.01). Analyses of the individual components of sarcopenia showed that muscle function was associated with incident AD, incident MCI, and cognitive decline with and without a term for lean muscle mass in the model. In contrast, lean muscle mass was not associated with incident cognitive impairment or cognitive decline when a term for muscle function was included in the model. CONCLUSIONS Poor muscle function, but not reduced lean muscle mass, drives the association of sarcopenia with late-life cognitive impairment. Further work is needed to identify features of muscle structure, which may increase the specificity of sarcopenia for identifying older adults at risk for late-life cognitive impairment.
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Affiliation(s)
- Michal S Beeri
- Department of Psychiatry, The Icahn School of Medicine at Mount Sinai, New York, New York, USA.,Sheba Medical Center, The Joseph Sagol Neuroscience Center, Ramat Gan, Israel
| | - Sue E Leugrans
- Rush Alzheimer's Disease Center, Rush University Medical Center, Chicago, Illinois, USA.,Department of Neurological Sciences, Rush University Medical Center, Chicago, Illinois, USA
| | - Osvaldo Delbono
- Section of Gerontology, Wake Forest School of Medicine, Winston-Salem, North Carolina, USA
| | - David A Bennett
- Rush Alzheimer's Disease Center, Rush University Medical Center, Chicago, Illinois, USA.,Department of Neurological Sciences, Rush University Medical Center, Chicago, Illinois, USA
| | - Aron S Buchman
- Rush Alzheimer's Disease Center, Rush University Medical Center, Chicago, Illinois, USA.,Department of Neurological Sciences, Rush University Medical Center, Chicago, Illinois, USA
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Yuan Y, Lapane KL, Tjia J, Baek J, Liu SH, Ulbricht CM. Physical Frailty and Cognitive Impairment in Older Adults in United States Nursing Homes. Dement Geriatr Cogn Disord 2021; 50:60-67. [PMID: 33887723 PMCID: PMC8243819 DOI: 10.1159/000515140] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Accepted: 02/06/2021] [Indexed: 01/12/2023] Open
Abstract
INTRODUCTION In older US nursing home (NH) residents, there is limited research on the prevalence of physical frailty, its potential dynamic changes, and its association with cognitive impairment in older adults' first 6 months of NH stay. METHODS Minimum Data Set (MDS) 3.0 is the national database on residents in US Medicare-/Medicaid-certified NHs. MDS 3.0 was used to identify older adults aged ≥65 years, newly admitted to NHs during January 1, 2014, and June 30, 2016, with life expectancy ≥6 months at admission and NH length of stay ≥6 months (N = 571,139). MDS 3.0 assessments at admission, 3 months, and 6 months were used. In each assessment, physical frailty was measured by FRAIL-NH (robust, prefrail, and frail) and cognitive impairment by Brief Interview for Mental Status and Cognitive Performance Scale (none/mild, moderate, and severe). Demographic characteristics and diagnosed conditions were measured at admission, while presence of pain and receipt of psychotropic medications were at each assessment. Distribution of physical frailty and its change over time by cognitive impairment were described. A nonproportional odds model was fitted with a generalized estimation equation to longitudinally examine the association between physical frailty and cognitive impairment, adjusting for demographic and clinical characteristics. RESULTS Around 60% of older residents were physically frail in the first 6 months. Improvement and worsening across physical frailty levels were observed. Particularly, in those who were prefrail at admission, 23% improved to robust by 3 months. At admission, 3 months, and 6 months, over 37% of older residents had severe cognitive impairment and about 70% of those with cognitive impairment were physically frail. At admission, older residents with moderate cognitive impairment were 35% more likely (adjusted odds ratio [aOR]: 1.35, 95% confidence interval [CI]: 1.33-1.37) and those with severe impairment were 74% more likely (aOR: 1.74, 95% CI: 1.72-1.77) to be frail than prefrail/robust, compared to those with none/mild impairment. The association between the 2 conditions remained positive and consistently increased over time. DISCUSSION/CONCLUSION Physical frailty was prevalent in NHs with potential to improve and was strongly associated with cognitive impairment. Physical frailty could be a modifiable target, and interventions may include efforts to address cognitive impairment.
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Affiliation(s)
- Yiyang Yuan
- Clinical and Population Health Research PhD Program, Graduate School of Biomedical Sciences, University of Massachusetts Medical School, Worcester, MA, USA
- Department of Population and Quantitative Health Sciences, University of Massachusetts Medical School, Worcester, MA, USA
| | - Kate L. Lapane
- Department of Population and Quantitative Health Sciences, University of Massachusetts Medical School, Worcester, MA, USA
| | - Jennifer Tjia
- Department of Population and Quantitative Health Sciences, University of Massachusetts Medical School, Worcester, MA, USA
| | - Jonggyu Baek
- Department of Population and Quantitative Health Sciences, University of Massachusetts Medical School, Worcester, MA, USA
| | - Shao-Hsien Liu
- Department of Population and Quantitative Health Sciences, University of Massachusetts Medical School, Worcester, MA, USA
| | - Christine M. Ulbricht
- Department of Population and Quantitative Health Sciences, University of Massachusetts Medical School, Worcester, MA, USA
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Oveisgharan S, Yu L, Capuano A, Arvanitakis Z, Barnes LL, Schneider JA, Bennett DA, Buchman AS. Late-Life Vascular Risk Score in Association With Postmortem Cerebrovascular Disease Brain Pathologies. Stroke 2021; 52:2060-2067. [PMID: 33840227 DOI: 10.1161/strokeaha.120.030226] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
BACKGROUND AND PURPOSE The general cardiovascular Framingham risk score (FRS) identifies adults at increased risk for stroke. We tested the hypothesis that baseline FRS is associated with the presence of postmortem cerebrovascular disease (CVD) pathologies. METHODS We studied the brains of 1672 older decedents with baseline FRS and measured CVD pathologies including macroinfarcts, microinfarcts, atherosclerosis, arteriolosclerosis, and cerebral amyloid angiopathy. We employed a series of logistic regressions to examine the association of baseline FRS with each of the 5 CVD pathologies. RESULTS Average age at baseline was 80.5±7.0 years and average age at death was 89.2±6.7 years. A higher baseline FRS was associated with higher odds of macroinfarcts (odds ratio, 1.10 [95% CI, 1.07-1.13], P<0.001), microinfarcts (odds ratio, 1.04 [95% CI, 1.01-1.07], P=0.009), atherosclerosis (odds ratio, 1.07 [95% CI, 1.04-1.11], P<0.001), and arteriolosclerosis (odds ratio, 1.04 [95% CI, 1.01-1.07], P=0.005). C statistics for these models ranged from 0.537 to 0.595 indicating low accuracy for predicting CVD pathologies. FRS was not associated with the presence of cerebral amyloid angiopathy. CONCLUSIONS A higher FRS score in older adults is associated with higher odds of some, but not all, CVD pathologies, with low discrimination at the individual level. Further work is needed to develop a more robust risk score to identify adults at risk for accumulating CVD pathologies.
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Affiliation(s)
- Shahram Oveisgharan
- Rush Alzheimer's Disease Center (S.O., L.Y., A.C., Z.A., L.L.B., J.A.S., D.A.B., A.S.B.), Rush University Medical Center, Chicago, IL.,Department of Neurological Sciences (S.O., L.Y., A.C., Z.A., L.L.B., J.A.S., D.A.B., A.S.B.), Rush University Medical Center, Chicago, IL
| | - Lei Yu
- Rush Alzheimer's Disease Center (S.O., L.Y., A.C., Z.A., L.L.B., J.A.S., D.A.B., A.S.B.), Rush University Medical Center, Chicago, IL.,Department of Neurological Sciences (S.O., L.Y., A.C., Z.A., L.L.B., J.A.S., D.A.B., A.S.B.), Rush University Medical Center, Chicago, IL
| | - Ana Capuano
- Rush Alzheimer's Disease Center (S.O., L.Y., A.C., Z.A., L.L.B., J.A.S., D.A.B., A.S.B.), Rush University Medical Center, Chicago, IL.,Department of Neurological Sciences (S.O., L.Y., A.C., Z.A., L.L.B., J.A.S., D.A.B., A.S.B.), Rush University Medical Center, Chicago, IL
| | - Zoe Arvanitakis
- Rush Alzheimer's Disease Center (S.O., L.Y., A.C., Z.A., L.L.B., J.A.S., D.A.B., A.S.B.), Rush University Medical Center, Chicago, IL.,Department of Neurological Sciences (S.O., L.Y., A.C., Z.A., L.L.B., J.A.S., D.A.B., A.S.B.), Rush University Medical Center, Chicago, IL
| | - Lisa L Barnes
- Rush Alzheimer's Disease Center (S.O., L.Y., A.C., Z.A., L.L.B., J.A.S., D.A.B., A.S.B.), Rush University Medical Center, Chicago, IL.,Department of Neurological Sciences (S.O., L.Y., A.C., Z.A., L.L.B., J.A.S., D.A.B., A.S.B.), Rush University Medical Center, Chicago, IL.,Department of Behavioral Sciences (L.L.B.), Rush University Medical Center, Chicago, IL
| | - Julie A Schneider
- Rush Alzheimer's Disease Center (S.O., L.Y., A.C., Z.A., L.L.B., J.A.S., D.A.B., A.S.B.), Rush University Medical Center, Chicago, IL.,Department of Neurological Sciences (S.O., L.Y., A.C., Z.A., L.L.B., J.A.S., D.A.B., A.S.B.), Rush University Medical Center, Chicago, IL.,Department of Pathology (J.A.S.), Rush University Medical Center, Chicago, IL
| | - David A Bennett
- Rush Alzheimer's Disease Center (S.O., L.Y., A.C., Z.A., L.L.B., J.A.S., D.A.B., A.S.B.), Rush University Medical Center, Chicago, IL.,Department of Neurological Sciences (S.O., L.Y., A.C., Z.A., L.L.B., J.A.S., D.A.B., A.S.B.), Rush University Medical Center, Chicago, IL
| | - Aron S Buchman
- Rush Alzheimer's Disease Center (S.O., L.Y., A.C., Z.A., L.L.B., J.A.S., D.A.B., A.S.B.), Rush University Medical Center, Chicago, IL.,Department of Neurological Sciences (S.O., L.Y., A.C., Z.A., L.L.B., J.A.S., D.A.B., A.S.B.), Rush University Medical Center, Chicago, IL
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Buchman AS, Yu L, Oveisgharan S, Farfel JM, Schneider JA, Bennett DA. Person-Specific Contributions of Brain Pathologies to Progressive Parkinsonism in Older Adults. J Gerontol A Biol Sci Med Sci 2021; 76:615-621. [PMID: 32720690 PMCID: PMC8240996 DOI: 10.1093/gerona/glaa176] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Mixed-brain pathologies are the most common cause of progressive parkinsonism in older adults. We tested the hypothesis that the impact of individual pathologies associated with progressive parkinsonism differs among older adults. METHODS Data were from 1089 decedents who had undergone annual clinical testing and autopsy. Parkinsonism was based on a modified United Parkinson's Disease Rating Scale. Linear mixed-effects models were employed, to investigate the combinations of 9 pathologies related to progressive parkinsonism. Then we estimated the person-specific contributions of each pathology for progressive parkinsonism. RESULTS The average participant showed 3 pathologies. Parkinson's disease (PD) and 4 cerebrovascular pathologies (macroinfarcts, atherosclerosis, arteriolosclerosis, and cerebral amyloid angiopathy [CAA]), but not Alzheimer's disease, TDP-43, hippocampal sclerosis, and microinfarcts, were independently associated with progressive parkinsonism. These pathologies accounted for 13% of additional variance of progressive parkinsonism. Thirty-one different combinations of these 5 pathologies were observed to be associated with progressive parkinsonism observed. On average, PD and CAA accounted, respectively, for 66% and 65% of person-specific progression of parkinsonism, while macroinfarcts, atherosclerosis, and arteriolosclerosis accounted for 41%-48%. CONCLUSION There is much greater heterogeneity in the comorbidity and relative impact of individual brain pathologies affecting progressive parkinsonism than previously recognized and this may account in part for its phenotypic heterogeneity in older adults.
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Affiliation(s)
- Aron S Buchman
- Rush Alzheimer’s Disease Center, Rush University Medical Center, Chicago, Illinois
- Department of Neurological Sciences, Rush University Medical Center, Chicago, Illinois
| | - Lei Yu
- Rush Alzheimer’s Disease Center, Rush University Medical Center, Chicago, Illinois
- Department of Neurological Sciences, Rush University Medical Center, Chicago, Illinois
| | - Shahram Oveisgharan
- Rush Alzheimer’s Disease Center, Rush University Medical Center, Chicago, Illinois
- Department of Neurological Sciences, Rush University Medical Center, Chicago, Illinois
| | - Jose M Farfel
- Rush Alzheimer’s Disease Center, Rush University Medical Center, Chicago, Illinois
- Department of Pathology, Rush University Medical Center, Chicago, Illinois
| | - Julie A Schneider
- Rush Alzheimer’s Disease Center, Rush University Medical Center, Chicago, Illinois
- Department of Pathology, Rush University Medical Center, Chicago, Illinois
| | - David A Bennett
- Rush Alzheimer’s Disease Center, Rush University Medical Center, Chicago, Illinois
- Department of Neurological Sciences, Rush University Medical Center, Chicago, Illinois
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46
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Mainali S, Darsie ME. Neurologic and Neuroscientific Evidence in Aged COVID-19 Patients. Front Aging Neurosci 2021; 13:648662. [PMID: 33833676 PMCID: PMC8021699 DOI: 10.3389/fnagi.2021.648662] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2021] [Accepted: 02/23/2021] [Indexed: 12/20/2022] Open
Abstract
The COVID-19 pandemic continues to prevail as a catastrophic wave infecting over 111 million people globally, claiming 2. 4 million lives to date. Aged individuals are particularly vulnerable to this disease due to their fraility, immune dysfunction, and higher rates of medical comorbidities, among other causes. Apart from the primary respiratory illness, this virus is known to cause multi-organ dysfunction including renal, cardiac, and neurologic injuries, particularly in the critically-ill cohorts. Elderly patients 65 years of age or older are known to have more severe systemic disease and higher rates of neurologic complications. Morbidity and mortality is very high in the elderly population with 6–930 times higher likelihood of death compared to younger cohorts, with the highest risk in elderly patients ≥85 years and especially those with medical comorbidities such as hypertension, diabetes, heart disease, and underlying respiratory illness. Commonly reported neurologic dysfunctions of COVID-19 include headache, fatigue, dizziness, and confusion. Elderly patients may manifest atypical presentations like fall or postural instability. Other important neurologic dysfunctions in the elderly include cerebrovascular diseases, cognitive impairment, and neuropsychiatric illnesses. Elderly patients with preexisting neurologic diseases are susceptibility to severe COVID-19 infection and higher rates of mortality. Treatment of neurologic dysfunction of COVID-19 is based on existing practice standards of specific neurologic condition in conjunction with systemic treatment of the viral illness. The physical, emotional, psychologic, and financial implications of COVID-19 pandemic have been severe. Long-term data are still needed to understand the lasting effects of this devastating pandemic.
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Affiliation(s)
- Shraddha Mainali
- Department of Neurology, The Ohio State University, Columbus, OH, United States
| | - Marin E Darsie
- Department of Emergency Medicine, University of Wisconsin Hospitals and Clinics, Madison, WI, United States.,Department of Neurological Surgery, University of Wisconsin Hospitals and Clinics, Madison, WI, United States
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Suárez-Méndez I, Walter S, López-Sanz D, Pasquín N, Bernabé R, Castillo Gallo E, Valdés M, Del Pozo F, Maestú F, Rodríguez-Mañas L. Ongoing Oscillatory Electrophysiological Alterations in Frail Older Adults: A MEG Study. Front Aging Neurosci 2021; 13:609043. [PMID: 33679373 PMCID: PMC7935553 DOI: 10.3389/fnagi.2021.609043] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Accepted: 01/28/2021] [Indexed: 11/13/2022] Open
Abstract
Objective: The role of the central nervous system in the pathophysiology of frailty is controversial. We used magnetoencephalography (MEG) to search for abnormalities in the ongoing oscillatory neural activity of frail individuals without global cognitive impairment. Methods: Fifty four older (≥70 years) and cognitively healthy (Mini-Mental State Examination ≥24) participants were classified as robust (0 criterion, n = 34) or frail (≥ 3 criteria, n = 20) following Fried's phenotype. Memory, language, attention, and executive function were assessed through well-validated neuropsychological tests. Every participant underwent a resting-state MEG and a T1-weighted magnetic resonance imaging scan. We performed MEG power spectral analyses to compare the electrophysiological profiles of frail and robust individuals. We used an ensemble learner to investigate the ability of MEG spectral power to discriminate frail from robust participants. Results: We identified increased relative power in the frail group in the mu (p < 0.05) and sensorimotor (p < 0.05) frequencies across right sensorimotor, posterior parietal, and frontal regions. The ensemble learner discriminated frail from robust participants [area under the curve = 0.73 (95% CI = 0.49–0.98)]. Frail individuals performed significantly worse in the Trail Making Test, Digit Span Test (forward), Rey-Osterrieth Complex Figure, and Semantic Fluency Test. Interpretation: Frail individuals without global cognitive impairment showed ongoing oscillatory alterations within brain regions associated with aspects of motor control, jointly to failures in executive function. Our results suggest that some physical manifestations of frailty might partly arise from failures in central structures relevant to sensorimotor and executive processing.
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Affiliation(s)
- Isabel Suárez-Méndez
- Laboratory of Cognitive and Computational Neuroscience (Complutense University of Madrid - Universidad Politécnica de Madrid), Center for Biomedical Technology (CTB), Universidad Politécnica de Madrid (UPM), Madrid, Spain.,Department of Structure of Matter, Thermal Physics and Electronics, Complutense University of Madrid (UCM), Madrid, Spain.,Department of Experimental Psychology, Complutense University of Madrid (UCM), Madrid, Spain
| | - Stefan Walter
- Foundation for Biomedical Research, University Hospital of Getafe, Getafe, Spain.,Centro de Investigación Biomédica en Red Fragilidad y Envejecimiento Saludable (CIBERFES), Spain.,Department of Medicine and Public Health, Rey Juan Carlos University, Madrid, Spain
| | - David López-Sanz
- Laboratory of Cognitive and Computational Neuroscience (Complutense University of Madrid - Universidad Politécnica de Madrid), Center for Biomedical Technology (CTB), Universidad Politécnica de Madrid (UPM), Madrid, Spain.,Department of Psychobiology and Methodology in Behavioral Sciences, Universidad Complutense de Madrid (UCM), Madrid, Spain
| | - Natalia Pasquín
- Foundation for Biomedical Research, University Hospital of Getafe, Getafe, Spain
| | - Raquel Bernabé
- Foundation for Biomedical Research, University Hospital of Getafe, Getafe, Spain
| | | | - Myriam Valdés
- Foundation for Biomedical Research, University Hospital of Getafe, Getafe, Spain.,Geriatric Service, University Hospital of Getafe, Getafe, Spain
| | - Francisco Del Pozo
- Laboratory of Cognitive and Computational Neuroscience (Complutense University of Madrid - Universidad Politécnica de Madrid), Center for Biomedical Technology (CTB), Universidad Politécnica de Madrid (UPM), Madrid, Spain
| | - Fernando Maestú
- Laboratory of Cognitive and Computational Neuroscience (Complutense University of Madrid - Universidad Politécnica de Madrid), Center for Biomedical Technology (CTB), Universidad Politécnica de Madrid (UPM), Madrid, Spain.,Department of Experimental Psychology, Complutense University of Madrid (UCM), Madrid, Spain.,Centro de Investigación Biomédica en Red en Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Spain
| | - Leocadio Rodríguez-Mañas
- Foundation for Biomedical Research, University Hospital of Getafe, Getafe, Spain.,Centro de Investigación Biomédica en Red Fragilidad y Envejecimiento Saludable (CIBERFES), Spain.,Geriatric Service, University Hospital of Getafe, Getafe, Spain
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48
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Cui M, Zhang S, Liu Y, Gang X, Wang G. Grip Strength and the Risk of Cognitive Decline and Dementia: A Systematic Review and Meta-Analysis of Longitudinal Cohort Studies. Front Aging Neurosci 2021; 13:625551. [PMID: 33613270 PMCID: PMC7890203 DOI: 10.3389/fnagi.2021.625551] [Citation(s) in RCA: 59] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Accepted: 01/04/2021] [Indexed: 12/14/2022] Open
Abstract
Purpose: Loss of grip strength and cognitive impairment are prevalent in the elderly, and they may share the pathogenesis in common. Several original studies have investigated the association between them, but the results remained controversial. In this systematic review and meta-analysis, we aimed to quantitatively determine the relationship between baseline grip strength and the risk of cognitive impairment and provide evidence for clinical work. Methods: We performed a systematic review using PubMed, EMBASE, Cochrane, and Web of Science up to March 23, 2020, and focused on the association between baseline grip strength and onset of cognitive impairment. Next, we conducted a meta-analysis using a hazard ratio (HR) and 95% confidence interval (CI) as effect measures. Heterogeneity between the studies was examined using I2 and p-value. Sensitivity analyses and subgroup analyses were also performed, and publication bias was assessed by Begg's and Egger's tests. Results: Fifteen studies were included in this systematic review. After sensitivity analyses, poorer grip strength was associated with more risk of cognitive decline and dementia (HR = 1.99, 95%CI: 1.71–2.32; HR = 1.54, 95%CI: 1.32–1.79, respectively). Furthermore, subgroup analysis indicated that people with poorer strength had more risk of Alzheimer's disease (AD) and non-AD dementia (HR = 1.41, 95%CI: 1.09–1.81; HR = 1.45, 95%CI: 1.10–1.91, respectively). Conclusions: Lower grip strength is associated with more risk of onset of cognitive decline and dementia despite of subtype of dementia. We should be alert for the individuals with poor grip strength and identify cognitive dysfunction early.
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Affiliation(s)
- Mengzhao Cui
- Department of Endocrinology and Metabolism, The First Hospital of Jilin University, Changchun, China
| | - Siwen Zhang
- Department of Endocrinology and Metabolism, The First Hospital of Jilin University, Changchun, China
| | - Yujia Liu
- Department of Endocrinology and Metabolism, The First Hospital of Jilin University, Changchun, China
| | - Xiaokun Gang
- Department of Endocrinology and Metabolism, The First Hospital of Jilin University, Changchun, China
| | - Guixia Wang
- Department of Endocrinology and Metabolism, The First Hospital of Jilin University, Changchun, China
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Oveisgharan S, Yu L, Bennett DA, Buchman AS. Incident mobility disability, parkinsonism, and mortality in community-dwelling older adults. PLoS One 2021; 16:e0246206. [PMID: 33534811 PMCID: PMC7857621 DOI: 10.1371/journal.pone.0246206] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Accepted: 01/14/2021] [Indexed: 01/22/2023] Open
Abstract
Background Mobility disability and parkinsonism are associated with decreased survival in older adults. This study examined the transition from no motor impairment to mobility disability and parkinsonism and their associations with death. Methods 867 community-dwelling older adults without mobility disability or parkinsonism at baseline were examined annually. Mobility disability was based on annual measured gait speed. Parkinsonism was based on the annual assessment of 26 items from the motor portion of the Unified Parkinson’s Disease Rating Scale. A multistate Cox model simultaneously examined the incidences of mobility disability and parkinsonism and their associations with death. Results Average age at baseline was 75 years old and 318 (37%) died during 10 years of follow-up. Mobility disability was almost 2-fold more common than parkinsonism. Some participants developed mobility disability alone (42%), or parkinsonism alone (5%), while many developed both (41%). Individuals with mobility disability or parkinsonism alone had an increased risk of death, but their risk was less than the risk in individuals with both impairments. The risk of death did not depend on the order in which impairments occurred. Conclusion The varied patterns of transitions from no motor impairment to motor impairment highlights the heterogeneity of late-life motor impairment and its contribution to survival. Further studies are needed to elucidate the underlying biology of these different transitions and how they might impact survival.
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Affiliation(s)
- Shahram Oveisgharan
- Rush Alzheimer’s Disease Center, Rush University Medical Center, Chicago, IL, United States of America
- Department of Neurological Sciences, Rush University Medical Center, Chicago, IL, United States of America
- * E-mail:
| | - Lei Yu
- Rush Alzheimer’s Disease Center, Rush University Medical Center, Chicago, IL, United States of America
- Department of Neurological Sciences, Rush University Medical Center, Chicago, IL, United States of America
| | - David A. Bennett
- Rush Alzheimer’s Disease Center, Rush University Medical Center, Chicago, IL, United States of America
- Department of Neurological Sciences, Rush University Medical Center, Chicago, IL, United States of America
| | - Aron S. Buchman
- Rush Alzheimer’s Disease Center, Rush University Medical Center, Chicago, IL, United States of America
- Department of Neurological Sciences, Rush University Medical Center, Chicago, IL, United States of America
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50
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Buchman AS, Leurgans SE, Wang T, Schnaider-Beeri M, Agarwal P, Dawe RJ, Delbono O, Bennett DA. Motor function is the primary driver of the associations of sarcopenia and physical frailty with adverse health outcomes in community-dwelling older adults. PLoS One 2021; 16:e0245680. [PMID: 33529220 PMCID: PMC7853482 DOI: 10.1371/journal.pone.0245680] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Accepted: 01/06/2021] [Indexed: 12/25/2022] Open
Abstract
Background This study tested the hypothesis that sarcopenia and its constituent components, reduced lean muscle mass and impaired motor function, are associated with reduced survival and increased risk of incident disabilities. Methods 1466 community-dwelling older adults underwent assessment of muscle mass with bioelectrical impedance analysis (BIA), grip strength, gait speed and other components of physical frailty and annual self-report assessments of disability. We used Cox proportional hazards models that controlled for age, sex, race, education and height to examine the associations of a continuous sarcopenia metric with the hazard of death and incident disabilities. Results Mean baseline age was about 80 years old and follow-up was 5.5 years. In a proportional hazards model controlling for age, sex, race, education and baseline sarcopenia, each 1-SD higher score on a continuous sarcopenia scale was associated with lower hazards of death (HR 0.70, 95%CI [0.62, 0.78]), incident IADL (HR 0.80,95%CI [0.70, 0.93]), incident ADL disability (HR 0.80 95%CI [71, 91]) and incident mobility disability (HR 0.81, 95%CI [0.70, 0.93]). Further analyses suggest that grip strength and gait speed rather than muscle mass drive the associations with all four adverse health outcomes. Similar findings were observed when controlling for additional measures used to assess physical frailty including BMI, fatigue and physical activity. Conclusions Motor function is the primary driver of the associations of sarcopenia and physical frailty with diverse adverse health outcomes. Further work is needed to identify other facets of muscle structure and motor function which together can identify adults at risk for specific adverse health outcomes.
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Affiliation(s)
- Aron S. Buchman
- Rush Alzheimer’s Disease Center, Rush University Medical Center, Chicago, IL, United States of America
- Department of Neurological Sciences, Rush University Medical Center, Chicago, IL, United States of America
- * E-mail:
| | - Sue E. Leurgans
- Rush Alzheimer’s Disease Center, Rush University Medical Center, Chicago, IL, United States of America
- Department of Neurological Sciences, Rush University Medical Center, Chicago, IL, United States of America
| | - Tianhao Wang
- Rush Alzheimer’s Disease Center, Rush University Medical Center, Chicago, IL, United States of America
- Department of Neurological Sciences, Rush University Medical Center, Chicago, IL, United States of America
| | - Michal Schnaider-Beeri
- Icahn School of Medicine at Mount Sinai, New York, NY, United States of America
- Joseph Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel
| | - Puja Agarwal
- Department of Internal Medicine, Rush University Medical Center, Chicago, IL, United States of America
| | - Robert J. Dawe
- Rush Alzheimer’s Disease Center, Rush University Medical Center, Chicago, IL, United States of America
- Department of Diagnostic Radiology and Nuclear Medicine, Rush University Medical Center, Chicago, IL, United States of America
| | - Osvaldo Delbono
- Section of Gerontology, Wake Forest School of Medicine, Winston-Salem, NC, United States of America
| | - David A. Bennett
- Rush Alzheimer’s Disease Center, Rush University Medical Center, Chicago, IL, United States of America
- Department of Neurological Sciences, Rush University Medical Center, Chicago, IL, United States of America
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