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Duodu PA, Dey NEY, Okyere J, Simkhada B, Barker C, Gillibrand W, Simkhada P. Gendered differences in the prevalence and associated factors of dementia in Ghana: a cross-sectional survey. BMC Psychiatry 2024; 24:397. [PMID: 38802813 PMCID: PMC11131303 DOI: 10.1186/s12888-024-05856-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Accepted: 05/17/2024] [Indexed: 05/29/2024] Open
Abstract
BACKGROUND Dementia as a global phenomenon has received significant attention in research due to the adverse effects it has on the daily functioning of its victims. Despite studies conducted in relation to the prevalence and associated factors of dementia in Ghana, not much attention has been paid to the influence of gender. The study, therefore, focused on estimating gender differences in the prevalence and associated factors of dementia in the Ashanti Region of Ghana. METHODS This study adopted a cross-sectional design with surveys to recruit 800 participants who were 45 years or older. The data was obtained using the standardized Rowland Universal Dementia Assessment Scale (RUDAS) together with information on the various associated factors. A series of logistic models comprising of the total sample model, male sample model, and female sample model were estimated to analyse the data. All data analyses were completed in Stata version 14. RESULTS The overall prevalence of dementia was 23.38% [95% CI:20.44, 26.31]. More females 24.56% [95% CI:20.81, 28.31] compared to males 21.31% [95% CI:16.57, 26.04] were at risk of dementia. Younger age, attaining formal education, and belonging to richer households were negatively associated with the risk of dementia. In the total sample model, younger age and attaining formal education were negatively associated with dementia risk. In the male-female stratified models, education and household wealth index were negatively associated with dementia risk in the male sample while age and education were negatively related to dementia risk in the female sample. CONCLUSION The study concludes that there are gendered differences in the prevalence and factors associated with the risk of dementia in Ghana. As such, interventions and programmes to identify dementia cases must be gender sensitive. Specifically, when addressing dementia risk in males, interventions should be directed towards those with lower wealth status. Likewise, when developing programmes to mitigate dementia risk in women, particular attention should be given to women in the oldest age category.
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Grants
- HHS013-01 Strategic Research Investment Seed Funding, School of Human and Health Sciences, University of Huddersfield
- HHS013-01 Strategic Research Investment Seed Funding, School of Human and Health Sciences, University of Huddersfield
- HHS013-01 Strategic Research Investment Seed Funding, School of Human and Health Sciences, University of Huddersfield
- HHS013-01 Strategic Research Investment Seed Funding, School of Human and Health Sciences, University of Huddersfield
- HHS013-01 Strategic Research Investment Seed Funding, School of Human and Health Sciences, University of Huddersfield
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Affiliation(s)
- Precious Adade Duodu
- Department of Nursing, School of Human and Health Sciences, University of Huddersfield, Queensgate, Huddersfield, England, UK
| | | | - Joshua Okyere
- Department of Population and Health, University of Cape Coast, Cape Coast, Ghana.
- School of Nursing and Midwifery, College of Health Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana.
| | - Bibha Simkhada
- Department of Nursing, School of Human and Health Sciences, University of Huddersfield, Queensgate, Huddersfield, England, UK
| | - Caroline Barker
- Department of Nursing, School of Human and Health Sciences, University of Huddersfield, Queensgate, Huddersfield, England, UK
| | - Warren Gillibrand
- Department of Nursing, School of Human and Health Sciences, University of Huddersfield, Queensgate, Huddersfield, England, UK
| | - Padam Simkhada
- School of Human and Health Sciences, University of Huddersfield, Queensgate, Huddersfield, England, UK
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Gao PY, Ma LZ, Wang XJ, Wu BS, Huang YM, Wang ZB, Fu Y, Ou YN, Feng JF, Cheng W, Tan L, Yu JT. Physical frailty, genetic predisposition, and incident dementia: a large prospective cohort study. Transl Psychiatry 2024; 14:212. [PMID: 38802408 PMCID: PMC11130190 DOI: 10.1038/s41398-024-02927-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 05/10/2024] [Accepted: 05/13/2024] [Indexed: 05/29/2024] Open
Abstract
Physical frailty and genetic factors are both risk factors for increased dementia; nevertheless, the joint effect remains unclear. This study aimed to investigated the long-term relationship between physical frailty, genetic risk, and dementia incidence. A total of 274,194 participants from the UK Biobank were included. We applied Cox proportional hazards regression models to estimate the association between physical frailty and genetic and dementia risks. Among the participants (146,574 females [53.45%]; mean age, 57.24 years), 3,353 (1.22%) new-onset dementia events were recorded. Compared to non-frailty, the hazard ratio (HR) for dementia incidence in prefrailty and frailty was 1.396 (95% confidence interval [CI], 1.294-1.506, P < 0.001) and 2.304 (95% CI, 2.030-2.616, P < 0.001), respectively. Compared to non-frailty and low polygenic risk score (PRS), the HR for dementia risk was 3.908 (95% CI, 3.051-5.006, P < 0.001) for frailty and high PRS. Furthermore, among the participants, slow walking speed (HR, 1.817; 95% CI, 1.640-2.014, P < 0.001), low physical activity (HR, 1.719; 95% CI, 1.545-1.912, P < 0.001), exhaustion (HR, 1.670; 95% CI, 1.502-1.856, P < 0.001), low grip strength (HR, 1.606; 95% CI, 1.479-1.744, P < 0.001), and weight loss (HR, 1.464; 95% CI, 1.328-1.615, P < 0.001) were independently associated with dementia risk compared to non-frailty. Particularly, precise modulation for different dementia genetic risk populations can also be identified due to differences in dementia risk resulting from the constitutive pattern of frailty in different genetic risk populations. In conclusion, both physical frailty and high genetic risk are significantly associated with higher dementia risk. Early intervention to modify frailty is beneficial for achieving primary and precise prevention of dementia, especially in those at high genetic risk.
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Affiliation(s)
- Pei-Yang Gao
- Department of Neurology, Qingdao Municipal Hospital, Qingdao University, Qingdao, China
| | - Ling-Zhi Ma
- Department of Neurology, Qingdao Municipal Hospital, Qingdao University, Qingdao, China
| | - Xue-Jie Wang
- Department of Neurology, Qingdao Municipal Hospital, Qingdao University, Qingdao, China
| | - Bang-Sheng Wu
- Department of Neurology and National Center for Neurological Disorders, Huashan Hospital, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Shanghai Medical College, Fudan University, Shanghai, China
| | - Yi-Ming Huang
- Department of Neurology, Qingdao Municipal Hospital, Qingdao University, Qingdao, China
| | - Zhi-Bo Wang
- Innovation Center for Neurological Disorders and Department of Neurology, Xuanwu Hospital, Capital Medical University, National Center for Neurological Disorders, Beijing, China
| | - Yan Fu
- Department of Neurology, Qingdao Municipal Hospital, Qingdao University, Qingdao, China
| | - Ya-Nan Ou
- Department of Neurology, Qingdao Municipal Hospital, Qingdao University, Qingdao, China
| | - Jian-Feng Feng
- Institute of Science and Technology for Brain-Inspired Intelligence, Fudan University, Shanghai, China
- Key Laboratory of Computational Neuroscience and Brain-Inspired Intelligence (Fudan University), Ministry of Education, Shanghai, China
- Fudan ISTBI-ZJNU Algorithm Centre for Brain-Inspired Intelligence, Zhejiang Normal University, Jinhua, China
- MOE Frontiers Center for Brain Science, Fudan University, Shanghai, China
- Zhangjiang Fudan International Innovation Center, Shanghai, China
| | - Wei Cheng
- Department of Neurology and National Center for Neurological Disorders, Huashan Hospital, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Shanghai Medical College, Fudan University, Shanghai, China
- Institute of Science and Technology for Brain-Inspired Intelligence, Fudan University, Shanghai, China
- Key Laboratory of Computational Neuroscience and Brain-Inspired Intelligence (Fudan University), Ministry of Education, Shanghai, China
- Fudan ISTBI-ZJNU Algorithm Centre for Brain-Inspired Intelligence, Zhejiang Normal University, Jinhua, China
| | - Lan Tan
- Department of Neurology, Qingdao Municipal Hospital, Qingdao University, Qingdao, China.
| | - Jin-Tai Yu
- Department of Neurology and National Center for Neurological Disorders, Huashan Hospital, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Shanghai Medical College, Fudan University, Shanghai, China.
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Sun Y, Li W, Zhou Y, Wang B, Tan X, Lu Y, Zhu J, Shi W, Wang N. Long-term changes in frailty and incident type 2 diabetes: A prospective cohort study based on the UK Biobank. Diabetes Obes Metab 2024. [PMID: 38783818 DOI: 10.1111/dom.15676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Revised: 04/30/2024] [Accepted: 05/05/2024] [Indexed: 05/25/2024]
Abstract
AIMS To estimate the association between long-term changes in frailty and the risk of incident type 2 diabetes (T2DM) and to evaluate the effect of preventing the worsening of frailty on the risk of T2DM. METHODS We included 348 205 participants free of baseline T2DM and with frailty phenotype (FP) data from the UK Biobank; among them, 36 175 had at least one follow-up assessment. According to their FP score, participants were grouped into nonfrailty, prefrailty and frailty groups. Frailty assessed at baseline and at follow-up was used to derive the trajectory of frailty (ΔFP). Cox regression models were used to estimate hazard ratios (HRs) and 95% confidence intervals (CIs). RESULTS Compared with those in the nonfrailty group at baseline, the HRs of T2DM for the prefrailty and frailty groups were 1.38 (95% CI 1.33-1.43) and 1.69 (95% CI 1.59-1.79), respectively (both p < 0.001), in the multivariable-adjusted model. During a median follow-up of 5.4 years after the final assessment, data for 472 T2DM patients were recorded. A 1-point increase in the final FP was associated with a 25% (95% CI 1.14-1.38; p < 0.001) increased risk of T2DM. For the trajectory of frailty, each 0.5-point/year increase in ΔFP was associated with a 52% (95% CI 1.18-1.97; p < 0.001) greater risk of T2DM, independent of the FP score at baseline. Compared with those that remained in the nonfrailty group, the greatest risk of T2DM over time was prefrailty aggravation (HR 3.03, 95% CI 2.00-4.58; p < 0.001). Using the frailty index did not materially change the results. CONCLUSIONS Long-term changes in frailty were associated with the risk of incident T2DM, irrespective of baseline frailty status. Preventing the worsening of frailty may reduce T2DM risk.
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Affiliation(s)
- Ying Sun
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Weihao Li
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Yinuo Zhou
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Bin Wang
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Xiao Tan
- Department of Big Data in Health Science, Zhejiang University, Hangzhou, China
- Department of Medical Sciences, Uppsala University, Uppsala, Sweden
| | - Yingli Lu
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Jingjing Zhu
- Clinical Research Center, School of Medicine, Shanghai Ninth People's Hospital Affiliated to Shanghai JiaoTong University, Shanghai, China
| | - Wentao Shi
- Clinical Research Center, School of Medicine, Shanghai Ninth People's Hospital Affiliated to Shanghai JiaoTong University, Shanghai, China
| | - Ningjian Wang
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
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Pszczołowska M, Walczak K, Miśków W, Mroziak M, Kozłowski G, Beszłej JA, Leszek J. Association between Female Reproductive Factors and Risk of Dementia. J Clin Med 2024; 13:2983. [PMID: 38792524 PMCID: PMC11122498 DOI: 10.3390/jcm13102983] [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: 04/16/2024] [Revised: 05/07/2024] [Accepted: 05/16/2024] [Indexed: 05/26/2024] Open
Abstract
Women have an over 50% greater risk of dementia than men, which is a main topic of much research. This review aims to investigate the impact of a woman's reproductive history on dementia risk. The consequences of stillbirth are long-term health and psychosocial problems for women. Because of the awareness of an endangered pregnancy, many parents experience deep anxiety and stress in subsequent pregnancies. There are contradictory conclusions from research about abortion and the risk of dementia correlation. When it comes to the late age of first birth, which is said to be above 35 years old, it was observed that older mothers have a decreased risk of dementia compared to those who gave birth in their 20s; however, being a child of the older mother is connected with a higher risk of developing dementia. Using hormonal contraception can result in decreased risk of dementia as estrogen stimulates microglia-related Aβ removal and reduces tau hyperphosphorylation. The influence of postmenopausal hormonal therapy and the duration of the reproductive period on developing dementia remains unclear. Although female disorders like endometriosis and polycystic ovary syndrome are reported to increase the risk of dementia, the research on this topic is very limited, especially when it comes to endometriosis, and needs further investigation. Interestingly, there is no conclusion on whether hypertensive disorders of pregnancy increase the risk of dementia, but most articles seem to confirm this theory.
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Affiliation(s)
| | - Kamil Walczak
- Faculty of Medicine, Wrocław Medical University, 50-367 Wrocław, Poland
| | - Weronika Miśków
- Faculty of Medicine, Wrocław Medical University, 50-367 Wrocław, Poland
| | - Magdalena Mroziak
- Faculty of Medicine, Wrocław Medical University, 50-367 Wrocław, Poland
| | - Gracjan Kozłowski
- Faculty of Medicine, Wrocław Medical University, 50-367 Wrocław, Poland
| | - Jan Aleksander Beszłej
- Clinic of Psychiatry, Department of Psychiatry, Medical Department, Wrocław Medical University, 50-367 Wrocław, Poland
| | - Jerzy Leszek
- Clinic of Psychiatry, Department of Psychiatry, Medical Department, Wrocław Medical University, 50-367 Wrocław, Poland
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Du J, Qu C, Xu Z, Liu Z, Lv M, Wang D, Wei W, Duan Y, Shen J. White matter hyperintensities mediate the association between frailty and cognitive impairment in moyamoya disease. Clin Neurol Neurosurg 2024; 240:108283. [PMID: 38608350 DOI: 10.1016/j.clineuro.2024.108283] [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] [Received: 12/09/2023] [Revised: 04/07/2024] [Accepted: 04/08/2024] [Indexed: 04/14/2024]
Abstract
OBJECTIVES The relationship between cognitive function and frailty in moyamoya disease (MMD) remains unclear, and the underlying mechanism is poorly understood. This study aims to investigate whether white matter hyperintensities (WMHs) mediate the association between frailty and cognitive impairment in MMD. METHODS Patients with MMD were consecutively enrolled in our study from January 2021 to May 2023. Pre-admission frailty and cognition were assessed using the Clinical Frailty Scale (CFS) and cognitive tests, respectively. Regional deep WMH (DWMH) and periventricular WMH (PWMH) volumes were calculated using the Brain Anatomical Analysis using Diffeomorphic deformation toolbox based on SPM 12 software. Multivariate logistic regression analysis was conducted to evaluate the association between frailty and cognitive function in MMD. Mediation analysis was performed to assess whether WMHs explained the association between frailty and cognition. RESULTS A total of 85 patients with MMD were enrolled in this study. On the basis of the CFS scores, 24 patients were classified as frail, 38 as pre-frail, and 23 as robust. Significant differences were observed in learning, memory, processing speed, executive functions, and semantic memory among the three groups (p < 0.001). Frailty was independently associated with memory and executive functions (p < 0.05); even after controlling for WMH. Mediation analysis indicated that the associations of frailty with memory and executive functions were partially mediated by WMH, DWMH, and PWMH (p < 0.05). CONCLUSION Frailty is significantly correlated with a higher risk of cognitive impairment in MMD, even after adjusting for other covariates. WMHs partially mediate the association between frailty and cognitive impairment.
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Affiliation(s)
- Juan Du
- Department of Neurology, Huadong Hospital Affiliated to Fudan University, Shanghai, China
| | - Changhua Qu
- Department of Neurology, Minda Hospital of Hubei Minzu University, Hubei, China
| | - Ziwei Xu
- Department of Neurology, Huadong Hospital Affiliated to Fudan University, Shanghai, China
| | - Zhengxin Liu
- Department of Neurology, Huadong Hospital Affiliated to Fudan University, Shanghai, China
| | - Mingxuan Lv
- Department of Neurology, Huadong Hospital Affiliated to Fudan University, Shanghai, China
| | - Dan Wang
- Department of Neurology, Huadong Hospital Affiliated to Fudan University, Shanghai, China
| | - Wenshi Wei
- Department of Neurology, Huadong Hospital Affiliated to Fudan University, Shanghai, China
| | - Yu Duan
- Department of Neurosurgery, Huadong Hospital Affiliated to Fudan University, Shanghai, China.
| | - Jun Shen
- Department of Neurology, Huadong Hospital Affiliated to Fudan University, Shanghai, China; Department of Neurology, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, China.
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Song X, Greeley B, Low H, McDermid RC. Frailty Predicts Dementia and Death in Older Adults Living in Long-Term Care. J Am Med Dir Assoc 2024; 25:105007. [PMID: 38703787 DOI: 10.1016/j.jamda.2024.03.118] [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: 12/26/2023] [Revised: 03/25/2024] [Accepted: 03/26/2024] [Indexed: 05/06/2024]
Abstract
OBJECTIVES To investigate how the accumulation of deficits traditionally related and not traditionally related to dementia predicts dementia and mortality. DESIGN A retrospective cohort study with up to 9 years of follow-up. SETTING AND PARTICIPANTS Long-term care residents aged ≥65 with or without dementia. METHODS Frailty indices based on health deficit accumulation were constructed. The FI-t consisted of 27 deficits traditionally related to dementia; the FI-n consisted of 27 deficits not traditionally related to dementia; the FI-a consisted of all 54 deficits taken from the FI-t and the FI-n. RESULTS In this long-term care sample (n = 29,758; mean age = 84.6 ± 8.0; 63.8% female), 91% of the residents had at least 1 impairment in activities of daily living, 61% had a diagnosis of dementia, and the vast majority were frail (53% had FI-a > 0.2). Residents with dementia had a higher FI-t compared with those without dementia (0.278 ± 0.110 vs. 0.272 ± 0.108), whereas residents without dementia had a higher FI-n (0.143 ± 0.082 vs. 0.136 ± 0.079). Within 9 years, 97% of the sample had died; a 0.01 increase of the FI-a was associated with a 4% increase of the mortality risk, adjusting for age, sex, admission year, stay length, and dementia type. Residents who developed dementia after admission to long-term care had higher baseline FI-t and FI-a (P's < .003) than those who remained without dementia. CONCLUSIONS AND IMPLICATIONS Frailty is highly prevalent in older adults living in long-term care, irrespective of the presence or absence of dementia. Accumulation of deficits, either traditionally related or unrelated to dementia, is associated with risks of death and dementia, and more deficits increases the probability. Our findings have implications for improving the quality of care of older adults in long-term care, by monitoring the degree of frailty at admission, managing distinct needs in relation to dementia, and enhancing frailty level-informed care and services.
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Affiliation(s)
- Xiaowei Song
- Clinical Research, Surrey Memorial Hospital, Fraser Health, Surrey, British Columbia, Canada.
| | - Brian Greeley
- Clinical Research, Surrey Memorial Hospital, Fraser Health, Surrey, British Columbia, Canada
| | - Hilary Low
- Clinical Research, Surrey Memorial Hospital, Fraser Health, Surrey, British Columbia, Canada
| | - Robert C McDermid
- Critical Care, Surrey Memorial Hospital, Fraser Health, Surrey, British Columbia, Canada
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Ward D, Flint J, Littlejohns T, Foote I, Canevelli M, Wallace L, Gordon E, Llewellyn D, Ranson J, Hubbard R, Rockwood K, Stolz E. Frailty trajectories preceding dementia: an individual-level analysis of four cohort studies in the United States and United Kingdom. RESEARCH SQUARE 2024:rs.3.rs-4314795. [PMID: 38746437 PMCID: PMC11092835 DOI: 10.21203/rs.3.rs-4314795/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
Frailty may represent a modifiable risk factor for dementia, but the direction of that association remains uncertain. We investigated frailty trajectories in the years preceding dementia onset using data from 23,672 participants (242,760 person-years of follow-up, 2,906 cases of incident dementia) across four cohort studies in the United States and United Kingdom. Bayesian non-linear models revealed accelerations in frailty trajectories 4-9 years before incident dementia. Among participants whose time between frailty measurement and incident dementia exceeded that prodromal period, frailty remained positively associated with dementia risk (adjusted hazard ratios ranged from 1.20 [95% confidence interval, CI = 1.15-1.26] to 1.43 [95% CI = 1.14-1.81]). This observational evidence suggests that frailty increases dementia risk independently of any reverse causality. These findings indicate that frailty measurements can be used to identify high-risk population groups for preferential enrolment into clinical trials for dementia prevention and treatment. Frailty itself may represent a useful upstream target for behavioural and societal approaches to dementia prevention.
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Xia X, Jönsson L, Tazzeo C, Qiu C, Rizzuto D, Laukka EJ, Grande G, Fratiglioni L, Vetrano DL. Associations of Orthostatic Hypotension and Frailty With Dementia and Mortality in Older Adults: A Population-Based Cohort Study. J Gerontol A Biol Sci Med Sci 2024; 79:glae010. [PMID: 38195215 PMCID: PMC10919881 DOI: 10.1093/gerona/glae010] [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: 08/23/2023] [Indexed: 01/11/2024] Open
Abstract
BACKGROUND This study aimed to assess the associations of orthostatic hypotension (OH), in the presence or absence of frailty, with dementia and mortality in older adults. METHODS We conducted a 15-year population-based cohort study including 2 703 baseline dementia-free individuals from the Swedish National Study on Aging and Care in Kungsholmen. At baseline, OH was defined as a decline in systolic/diastolic blood pressure ≥20/10 mm Hg 1 minute after standing up from a supine position. Frailty status was defined following Fried's frailty phenotype. Dementia was diagnosed following the Diagnostic and Statistical Manual of Mental Disorders-fourth edition criteria. Multistate flexible parametric survival models were used to estimate associations of OH and frailty with dementia and mortality. RESULTS Robust people with OH (adjusted hazard ratio [HR] = 2.28; 95% confidence interval [CI] = 1.47-3.54) and frail people without OH (HR = 1.98; 95% CI = 1.40-2.82) or with OH (HR = 2.73; 95% CI = 1.82-4.10) had a higher dementia risk than OH-free and robust people. Moreover, frail people, independently of the presence of OH, had higher mortality rate than OH-free and robust people. In individuals who developed dementia during the follow-up period, neither OH nor frailty was significantly associated with mortality. CONCLUSIONS Older adults with OH, whether robust or frail, may have a higher dementia risk than those without OH. Older adults with OH, when having frailty, may have a higher mortality rate than those without OH. The concurrent assessments of OH and frailty may provide prognostic values in terms of dementia and mortality risk in older adults.
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Affiliation(s)
- Xin Xia
- Aging Research Center, Department of Neurobiology, Care Sciences and Society (NVS), Karolinska Institutet–Stockholm University, Stockholm, Sweden
| | - Linus Jönsson
- Section for Neurogeriatrics, Department of Neurobiology, Care Sciences and Society (NVS), Karolinska Institutet, Stockholm, Sweden
| | - Clare Tazzeo
- Aging Research Center, Department of Neurobiology, Care Sciences and Society (NVS), Karolinska Institutet–Stockholm University, Stockholm, Sweden
| | - Chengxuan Qiu
- Aging Research Center, Department of Neurobiology, Care Sciences and Society (NVS), Karolinska Institutet–Stockholm University, Stockholm, Sweden
| | - Debora Rizzuto
- Aging Research Center, Department of Neurobiology, Care Sciences and Society (NVS), Karolinska Institutet–Stockholm University, Stockholm, Sweden
- Stockholm Gerontology Research Center, Stockholm, Sweden
| | - Erika J Laukka
- Aging Research Center, Department of Neurobiology, Care Sciences and Society (NVS), Karolinska Institutet–Stockholm University, Stockholm, Sweden
- Stockholm Gerontology Research Center, Stockholm, Sweden
| | - Giulia Grande
- Aging Research Center, Department of Neurobiology, Care Sciences and Society (NVS), Karolinska Institutet–Stockholm University, Stockholm, Sweden
| | - Laura Fratiglioni
- Aging Research Center, Department of Neurobiology, Care Sciences and Society (NVS), Karolinska Institutet–Stockholm University, Stockholm, Sweden
- Stockholm Gerontology Research Center, Stockholm, Sweden
| | - Davide Liborio Vetrano
- Aging Research Center, Department of Neurobiology, Care Sciences and Society (NVS), Karolinska Institutet–Stockholm University, Stockholm, Sweden
- Stockholm Gerontology Research Center, Stockholm, Sweden
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Kyvetos A, Kyritsi E, Vrettos I, Voukelatou P, Manoli AD, Papadopoulou E, Katsaros OF, Toutouzas K. Association Between Chronic Diseases and Frailty in a Sample of Older Greek Inpatients. Cureus 2024; 16:e58568. [PMID: 38765349 PMCID: PMC11102568 DOI: 10.7759/cureus.58568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/18/2024] [Indexed: 05/22/2024] Open
Abstract
INTRODUCTION Previous reports have associated frailty with the existence of various chronic diseases. Especially for cardiovascular diseases, this relationship seems to be bidirectional as common pathophysiological mechanisms lead to the progression of both diseases and frailty. The study aimed to examine the relationship between chronic diseases and frailty in a sample of older Greek inpatients Methodology: In 457 consecutively admitted older patients (226, 49.5% females), the median age was 82 years (interquartile range [IQR] 75-89), and demographic factors, medical history, cause of admission, and the degree of frailty assessed with the Clinical Frailty Scale were recorded. The level of frailty was calculated for the pre-hospital status of the patients. Parametric tests and logistic regression analysis were applied to identify diseases independently associated with frailty. RESULTS Using the scale, 277 patients (60.6%) were classified as frail and 180 as non-frail (39.4%). In univariate analysis, frail patients were more likely to have respiratory disease, dementia, Parkinson's disease, chronic kidney disease (CKD), atrial fibrillation (AFIB), neoplastic disease, depression, stroke, heart failure (HF), and coronary artery disease. In binomial regression analysis, the diseases that were statistically significantly associated with frailty were respiratory diseases (P = 0.009, odds ratio [OR] = 2.081, 95% confidence interval [CI] 1.198-3.615), dementia (P ≤ 0.001, OR = 20.326, 95% CI 8.354-49.459), Parkinson's disease (P = 0.049, OR = 3.920, 95% CI 1.005-15.295), CKD (P = 0.018, OR = 2.542, 95% CI 1.172-5.512), AFIB (P = 0.017, OR = 1.863, 95% CI 1.118-3.103), HF (P = 0.002, OR = 2.411, 95% CI 1.389-4.185), and coronary artery disease (P = 0.004, OR = 2.434, 95% CI 1.324-4.475). CONCLUSIONS Among diseases independently associated with frailty, chronic diseases such as respiratory diseases, dementia, Parkinson's disease, CKD, and cardiovascular diseases (AFIB, HF, and coronary heart disease) have an important role. Recognizing the diseases that are highly related to frailty may contribute, by their optimal management, to delaying the progression or even reversing frailty in a large proportion of the elderly.
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Affiliation(s)
- Andreas Kyvetos
- Second Department of Internal Medicine, General and Oncology Hospital of Kifissia "Agioi Anargyroi", Athens, GRC
| | - Eleni Kyritsi
- First Department of Cardiology, Medical School, Hippokration General Hospital of Athens, National and Kapodistrian University of Athens, Athens, GRC
| | - Ioannis Vrettos
- Second Department of Internal Medicine, General and Oncology Hospital of Kifissia "Agioi Anargyroi", Athens, GRC
| | - Panagiota Voukelatou
- Second Department of Internal Medicine, General and Oncology Hospital of Kifissia "Agioi Anargyroi", Athens, GRC
| | - Anastasia D Manoli
- Department of Pediatric Medicine, Pendelis General Children's Hospital, Athens, GRC
| | | | - Odysseas F Katsaros
- First Department of Cardiology, Medical School, Hippokration General Hospital of Athens, National and Kapodistrian University of Athens, Athens, GRC
| | - Konstantinos Toutouzas
- First Department of Cardiology, Medical School, Hippokration General Hospital of Athens, National and Kapodistrian University of Athens, Athens, GRC
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Gordon EH, Ward DD, Xiong H, Berkovsky S, Hubbard RE. Delirium and incident dementia in hospital patients in New South Wales, Australia: retrospective cohort study. BMJ 2024; 384:e077634. [PMID: 38537951 PMCID: PMC10966895 DOI: 10.1136/bmj-2023-077634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/22/2024] [Indexed: 04/06/2024]
Abstract
OBJECTIVES To determine the strength and nature of the association between delirium and incident dementia in a population of older adult patients without dementia at baseline. DESIGN Retrospective cohort study using large scale hospital administrative data. SETTING Public and private hospitals in New South Wales, Australia between July 2001 and March 2020. PARTICIPANTS Data were extracted for 650 590 hospital patients aged ≥65 years. Diagnoses of dementia and delirium were identified from ICD-10 (international classification of diseases, 10th revision) codes. Patients with dementia at baseline were excluded. Delirium-no delirium pairs were identified by matching personal and clinical characteristics, and were followed for more than five years. MAIN OUTCOME MEASURES Cox proportional hazards models and Fine-Gray hazard models were used to estimate the associations of delirium with death and incident dementia, respectively. Delirium-outcome dose-response associations were quantified, all analyses were performed in men and women separately, and sensitivity analyses were conducted. RESULTS The study included 55 211 matched pairs (48% men, mean age 83.4 years, standard deviation 6.5 years). Collectively, 58% (n=63 929) of patients died and 17% (n=19 117) had a newly reported dementia diagnosis during 5.25 years of follow-up. Patients with delirium had 39% higher risk of death (hazard ratio 1.39, 95% confidence interval 1.37 to 1.41) and three times higher risk of incident dementia (subdistribution hazard ratio 3.00, 95% confidence interval 2.91 to 3.10) than patients without delirium. The association with dementia was stronger in men (P=0.004). Each additional episode of delirium was associated with a 20% increased risk of dementia (subdistribution hazard ratio 1.20, 95% confidence interval 1.18 to 1.23). CONCLUSIONS The study findings suggest delirium was a strong risk factor for death and incident dementia among older adult patients. The data support a causal interpretation of the association between delirium and dementia. The clinical implications of delirium as a potentially modifiable risk factor for dementia are substantial.
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Affiliation(s)
- Emily H Gordon
- Centre for Health Services Research, The University of Queensland, Princess Alexandra Hospital, Woolloongabba, QLD, Australia
- Australian Frailty Network, The University of Queensland, Princess Alexandra Hospital, Woolloongabba, QLD, Australia
| | - David D Ward
- Centre for Health Services Research, The University of Queensland, Princess Alexandra Hospital, Woolloongabba, QLD, Australia
- Australian Frailty Network, The University of Queensland, Princess Alexandra Hospital, Woolloongabba, QLD, Australia
| | - Hao Xiong
- Centre for Health Informatics, Macquarie University, North Ryde, NSW, Australia
| | - Shlomo Berkovsky
- Centre for Health Informatics, Macquarie University, North Ryde, NSW, Australia
| | - Ruth E Hubbard
- Centre for Health Services Research, The University of Queensland, Princess Alexandra Hospital, Woolloongabba, QLD, Australia
- Australian Frailty Network, The University of Queensland, Princess Alexandra Hospital, Woolloongabba, QLD, Australia
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11
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Alpert JS, Fain M. Frailty: The Sixth and Seventh Ages of Man: Disability and Dementia. Am J Med 2024:S0002-9343(24)00175-X. [PMID: 38521194 DOI: 10.1016/j.amjmed.2024.03.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Accepted: 03/15/2024] [Indexed: 03/25/2024]
Affiliation(s)
- Joseph S Alpert
- University of Arizona College of Medicine, Tucson Editor in Chief The American Journal of Medicine.
| | - Mindy Fain
- Anne and Alden Harat Professor of Medicine, Chief, Division of General Internal Medicine, Geriatrics and Palliative Medicine, Co-Director, University of Arizona Center on Aging, University of Arizona College of Medicine, Tucson Specialty Editor, Practical Geriatrics The American Journal of Medicine
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12
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Bernini S, Conti S, Perdixi E, Jesuthasan N, Costa A, Severgnini M, Ramusino MC, Prinelli F. Investigating the individual and joint effects of socioeconomic status and lifestyle factors on mild cognitive impairment in older Italians living independently in the community: results from the NutBrain study. J Nutr Health Aging 2024; 28:100040. [PMID: 38280834 DOI: 10.1016/j.jnha.2024.100040] [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] [Received: 11/21/2023] [Revised: 01/05/2024] [Accepted: 01/05/2024] [Indexed: 01/29/2024]
Abstract
OBJECTIVES Despite extensive research, a clear understanding of the role of the interaction between lifestyle and socioeconomic status (SES) on cognitive health is still lacking. We investigated the joint association of socioeconomic factors in early to midlife and lifestyle in later life and Mild Cognitive Impairment (MCI). DESIGN Observational cross-sectional study. SETTING NutBrain study in northern Italy. PARTICIPANTS 773 community-dwelling adults aged 65 years and older (73.2 ± 6.0 SD, 58.6% females) participating in the NutBrain study (2019-2023). MEASUREMENTS Three SES indicators (home ownership, educational level, occupation) and five lifestyle factors (adherence to Mediterranean diet, physical activity, smoking habits, social network, leisure activities) were selected. Each factor was scored and summed to calculate SES and healthy lifestyle scores; their joint effect was also examined. The association with MCI was assessed by logistic regression controlling for potential confounders. Sex-stratified analysis was performed. RESULTS In total, 24% of the subjects had MCI. The multivariable logistic model showed that a high SES and a high lifestyle score were associated with 81.8% (OR0.182; 95%CI 0.095-0.351), and 44.1% (OR0.559; 95%CI 0.323-0.968) lower odds of having MCI, respectively. When examining the joint effect of SES and lifestyle factors, the cognitive benefits of a healthy lifestyle were most pronounced in participants with low SES. A healthier lifestyle score was found to be significantly associated with lower odds of MCI, only in females. CONCLUSIONS According to our findings, SES was positively associated with preserved cognitive function, highlighting the importance of active lifestyles in reducing socioeconomic health inequalities, particularly among those with a relatively low SES. TRIAL REGISTRATION Trial registration number NCT04461951, date of registration July 7, 2020 (retrospectively registered, ClinicalTrials.gov).
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Affiliation(s)
- Sara Bernini
- Clinical Neuroscience Unit of Dementia, Dementia Research Center, IRCCS Mondino Foundation, Via Mondino 2, 27100 Pavia, Italy; Neuropsychology Lab/Center for Cognitive Disorders and Dementia IRCCS Mondino Foundation, Via Mondino 2, 27100 Pavia, Italy
| | - Silvia Conti
- Neuropsychology Lab/Center for Cognitive Disorders and Dementia IRCCS Mondino Foundation, Via Mondino 2, 27100 Pavia, Italy; Institute of Biomedical Technologies - National Research Council, Via Fratelli Cervi 93, 20054 Segrate, MI, Italy
| | - Elena Perdixi
- Neuropsychology Lab/Center for Cognitive Disorders and Dementia IRCCS Mondino Foundation, Via Mondino 2, 27100 Pavia, Italy; Department of Neurology, IRCCS Humanitas Clinical and Research Center, Via Alessandro Manzoni, 56, 20089 Rozzano, MI, Italy
| | - Nithiya Jesuthasan
- Institute of Biomedical Technologies - National Research Council, Via Fratelli Cervi 93, 20054 Segrate, MI, Italy
| | - Alfredo Costa
- Clinical Neuroscience Unit of Dementia, Dementia Research Center, IRCCS Mondino Foundation, Via Mondino 2, 27100 Pavia, Italy; Unit of Behavioral Neurology IRCCS Mondino Foundation, Via Mondino 2, 27100 Pavia, Italy
| | - Marco Severgnini
- Institute of Biomedical Technologies - National Research Council, Via Fratelli Cervi 93, 20054 Segrate, MI, Italy
| | - Matteo Cotta Ramusino
- Clinical Neuroscience Unit of Dementia, Dementia Research Center, IRCCS Mondino Foundation, Via Mondino 2, 27100 Pavia, Italy; Unit of Behavioral Neurology IRCCS Mondino Foundation, Via Mondino 2, 27100 Pavia, Italy
| | - Federica Prinelli
- Neuropsychology Lab/Center for Cognitive Disorders and Dementia IRCCS Mondino Foundation, Via Mondino 2, 27100 Pavia, Italy; Institute of Biomedical Technologies - National Research Council, Via Fratelli Cervi 93, 20054 Segrate, MI, Italy.
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13
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Buchholz E, Gillespie NA, Hunt JF, Reynolds CA, Rissman RA, Schroeder A, Cortes I, Bell T, Lyons MJ, Kremen WS, Franz CE. Midlife cumulative deficit frailty predicts Alzheimer's disease-related plasma biomarkers in older adults. Age Ageing 2024; 53:afae028. [PMID: 38454901 PMCID: PMC10921085 DOI: 10.1093/ageing/afae028] [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: 07/04/2023] [Indexed: 03/09/2024] Open
Abstract
BACKGROUND The study explores whether frailty at midlife predicts mortality and levels of biomarkers associated with Alzheimer's disease and related dementias (ADRD) and neurodegeneration by early old age. We also examine the heritability of frailty across this age period. METHODS Participants were 1,286 community-dwelling men from the Vietnam Era Twin Study of Aging at average ages 56, 62 and 68, all without ADRD at baseline. The cumulative deficit frailty index (FI) comprised 37 items assessing multiple physiological systems. Plasma biomarkers at age 68 included beta-amyloid (Aβ40, Aβ42), total tau (t-tau) and neurofilament light chain (NfL). RESULTS Being frail doubled the risk of all-cause mortality by age 68 (OR = 2.44). Age 56 FI significantly predicted age 68 NfL (P = 0.014), Aβ40 (P = 0.001) and Aβ42 (P = 0.023), but not t-tau. Age 62 FI predicted all biomarkers at age 68: NfL (P = 0.023), Aβ40 (P = 0.002), Aβ42 (P = 0.001) and t-tau (P = 0.001). Age 68 FI scores were associated with age 68 levels of NfL (P = 0.027), Aβ40 (P < 0.001), Aβ42 (P = 0.001) and t-tau (P = 0.003). Genetic influences accounted for 45-48% of the variance in frailty and significantly contributed to its stability across 11 years. CONCLUSIONS Frailty during one's 50s doubled the risk of mortality by age 68. A mechanism linking frailty and ADRD may be through its associations with biomarkers related to neurodegeneration. Cumulative deficit frailty increases with age but remains moderately heritable across the age range studied. With environmental factors accounting for about half of its variance, early interventions aimed at reducing frailty may help to reduce risk for ADRD.
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Affiliation(s)
- Erik Buchholz
- Department of Psychiatry, University of California San Diego, La Jolla, CA 92093, USA
- Center for Behavior Genetics of Aging, University of California, La Jolla, San Diego, CA 92093, USA
- Department of Information Science, University of Arkansas at Little Rock, Little Rock, AR 72204 USA
| | - Nathan A Gillespie
- Virginia Institute for Psychiatric and Behavior Genetics, Virginia Commonwealth University, VA 23298, USA
| | - Jack F Hunt
- Department of Psychiatry, University of California San Diego, La Jolla, CA 92093, USA
- Center for Behavior Genetics of Aging, University of California, La Jolla, San Diego, CA 92093, USA
| | - Chandra A Reynolds
- Department of Psychology, University of California Riverside, Riverside, CA 92521, USA
| | - Robert A Rissman
- Department of Neurosciences, University of California, San Diego and VA San Diego Healthcare System, La Jolla, CA 92093, USA
- Alzheimer’s Therapeutic Research Institute, University of Southern California, San Diego, CA 92121, USA
| | - Angelica Schroeder
- Department of Psychiatry, University of California San Diego, La Jolla, CA 92093, USA
- Center for Behavior Genetics of Aging, University of California, La Jolla, San Diego, CA 92093, USA
| | - Isaac Cortes
- Department of Psychiatry, University of California San Diego, La Jolla, CA 92093, USA
- Center for Behavior Genetics of Aging, University of California, La Jolla, San Diego, CA 92093, USA
| | - Tyler Bell
- Department of Psychiatry, University of California San Diego, La Jolla, CA 92093, USA
- Center for Behavior Genetics of Aging, University of California, La Jolla, San Diego, CA 92093, USA
| | - Michael J Lyons
- Department of Psychological and Brain Sciences, Boston University, Boston, MA 02215, USA
| | - William S Kremen
- Department of Psychiatry, University of California San Diego, La Jolla, CA 92093, USA
- Center for Behavior Genetics of Aging, University of California, La Jolla, San Diego, CA 92093, USA
| | - Carol E Franz
- Department of Psychiatry, University of California San Diego, La Jolla, CA 92093, USA
- Center for Behavior Genetics of Aging, University of California, La Jolla, San Diego, CA 92093, USA
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14
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de Santana BRF, Borim FSA, de Assumpção D, Neri AL, Yassuda MS. Frailty and functional status among older adults with cognitive impairment: data from the second wave of the FIBRA study. Dement Neuropsychol 2024; 18:e20230051. [PMID: 38425699 PMCID: PMC10901559 DOI: 10.1590/1980-5764-dn-2023-0051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 11/08/2023] [Accepted: 11/12/2023] [Indexed: 03/02/2024] Open
Abstract
Frailty is defined as a recognizable state of increased vulnerability resulting from age-associated decline of function in various physiological systems, such that the ability to deal with acute or everyday stressors is compromised. Objective The aim of the study was to characterize the sample of older adults with cognitive impairment, according to the frailty status indirectly assessed by family members, other clinical and sociodemographic variables; and to assess the overlap of clinical conditions evaluated in this sample with cognitive impairment. Methods Data were extracted from the follow-up database of the Frailty in Brazilian Older Adults (FIBRA) study (2016-2017). The sample consisted of 130 elderly people with cognitive impairment assessed by the Mini Mental State Examination (MMSE). The scores for the Clinical Dementia Scale (CDR), Cornell Scale for Depression in Dementia and Functional Activities Questionnaire were described. Frailty was indirectly measured through questions answered by family members about the five criteria that compose the frailty phenotype. Results The sample consisted mostly of older women (n=91) with a mean age of 82.4 (SD=5.3) years, mean schooling of 3.3 years (SD=3.07), widowed (47.7%) and who lived with children and/or grandchildren (68%). More than half had multimorbidity (74.90%), 39.5% had depression symptoms suggestive of major depression, 57% had impaired functionality, 49.3% were frail, 37.6% pre-frail, and 13.10% robust. Conclusion Among older adults with cognitive impairment, frailty and functional limitations are common.
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Affiliation(s)
- Beatriz Raz Franco de Santana
- Postgraduate Program in Gerontology, Faculdade de Ciências Médicas, Universidade Estadual de Campinas, Campinas SP, Brazil
| | - Flávia Silva Arbex Borim
- Postgraduate Program in Gerontology, Faculdade de Ciências Médicas, Universidade Estadual de Campinas, Campinas SP, Brazil
| | - Daniela de Assumpção
- Postgraduate Program in Gerontology, Faculdade de Ciências Médicas, Universidade Estadual de Campinas, Campinas SP, Brazil
| | - Anita Liberalesso Neri
- Postgraduate Program in Gerontology, Faculdade de Ciências Médicas, Universidade Estadual de Campinas, Campinas SP, Brazil
| | - Mônica Sanches Yassuda
- Postgraduate Program in Gerontology, Faculdade de Ciências Médicas, Universidade Estadual de Campinas, Campinas SP, Brazil
- Gerontolgy, Escola de Artes, Ciências e Humanidades, Universidade de São Paulo, São Paulo SP, Brazil
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15
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Canevelli M, Wallace LMK, Bruno G, Cesari M, Rockwood K, Ward DD. Frailty is associated with the clinical expression of neuropsychological deficits in older adults. Eur J Neurol 2024; 31:e16072. [PMID: 37738515 DOI: 10.1111/ene.16072] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 09/06/2023] [Accepted: 09/07/2023] [Indexed: 09/24/2023]
Abstract
BACKGROUND AND PURPOSE The aim was to determine whether frailty is associated with the relationship between neuropsychological markers and global cognition in older adults. METHODS Cross-sectional analyzes were conducted of baseline data from three large cohort studies: National Alzheimer's Coordinating Center (NACC), Rush Memory and Aging Project (MAP) and Alzheimer's Disease Neuroimaging Initiative (ADNI). Studies recruited North American participants along the spectrum of cognitive functioning (44% no cognitive impairment at baseline). A frailty index was computed in each dataset. Frailty indices, neuropsychological tests (including measures of processing speed, episodic, semantic and working memory) and Mini-Mental State Examination (MMSE) scores were the variables of interest, with age, sex, education and apolipoprotein E ε4 evaluated as confounders. RESULTS Across all studies, 23,819 participants aged 55-104 (57% female) were included in analyzes. Frailty index scores were significantly and inversely associated with MMSE scores and significantly moderated relationships between neuropsychological test scores and MMSE scores. In participants with higher frailty index scores, lower neuropsychological test scores were more strongly associated with lower MMSE scores (standardized interaction coefficients ranged from -0.19 to -1.17 in NACC, -0.03 to -2.27 in MAP and -0.04 to -0.38 in ADNI, depending on the neuropsychological test). These associations were consistent across the different databases and were mostly independent of the composition of frailty indices (i.e., after excluding possible symptoms of dementia). CONCLUSIONS Amongst older Americans, frailty is associated with the cognitive expression of neuropsychological deficits. Implementation of frailty assessment in routine neurological and neuropsychological practice should be considered to optimize care outcomes for older adults.
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Affiliation(s)
- Marco Canevelli
- Department of Human Neuroscience, Sapienza University, Rome, Italy
- Aging Research Center, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet and Stockholm University, Stockholm, Sweden
| | | | - Giuseppe Bruno
- Department of Human Neuroscience, Sapienza University, Rome, Italy
| | - Matteo Cesari
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | - Kenneth Rockwood
- Divisions of Geriatric Medicine, Department of Medicine & Neurology, Dalhousie University, Halifax, Nova Scotia, Canada
- Geriatric Medicine Research, Centre for Health Care of the Elderly, Nova Scotia Health Authority, Halifax, Nova Scotia, Canada
- Kathryn Allen Weldon Professor of Alzheimer Research, Department of Medicine, Dalhousie University, Halifax, Nova Scotia, Canada
| | - David D Ward
- Divisions of Geriatric Medicine, Department of Medicine & Neurology, Dalhousie University, Halifax, Nova Scotia, Canada
- Geriatric Medicine Research, Centre for Health Care of the Elderly, Nova Scotia Health Authority, Halifax, Nova Scotia, Canada
- Faculty of Medicine, Centre for Health Services Research, The University of Queensland, Woolloongabba, Queensland, Australia
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16
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Karska J, Pszczołowska M, Gładka A, Leszek J. Correlations between Dementia and Loneliness. Int J Mol Sci 2023; 25:271. [PMID: 38203442 PMCID: PMC10779072 DOI: 10.3390/ijms25010271] [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] [Received: 11/13/2023] [Revised: 12/15/2023] [Accepted: 12/21/2023] [Indexed: 01/12/2024] Open
Abstract
This review describes associations between dementia and loneliness on the neurobiological and epidemiological levels according to the recent body of literature. The aim of this study was to highlight major lines of research in this field. Sociocognitive skills and social interactions present complex interdependencies with dementia which may be explained by two theories. According to the first one, not sufficiently engaging in social or cognitive activities results in brain atrophy. The second one claims that brain neurogenesis and synaptic density are being increased by social connections. The relationship between loneliness and dementia could be mediated by sensory loss, including hearing and visual impairment, as well as depression and psychotic symptoms. Loneliness itself might cause a depletion in sensory and cognitive stimulation which results in a decrease in neural reserve. Certain changes in the structures of the brain caused by loneliness were found in imaging examination. Loneliness appears to be a crucial risk factor for dementia in recent times due to the modern lifestyle and consequences of the outbreak of COVID-19. Additional studies are required to understand more completely the key tenets of this topic and therefore to improve the prevention and treatment of dementia.
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Affiliation(s)
- Julia Karska
- Department of Psychiatry, Wrocław Medical University, Pasteura 10, 50-367 Wrocław, Poland; (J.K.)
| | | | - Anna Gładka
- Department of Psychiatry, Wrocław Medical University, Pasteura 10, 50-367 Wrocław, Poland; (J.K.)
| | - Jerzy Leszek
- Department of Psychiatry, Wrocław Medical University, Pasteura 10, 50-367 Wrocław, Poland; (J.K.)
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Qi R, Yang Y, Sheng B, Li H, Zhang X. Plant-Based Diet Indices and Their Association with Frailty in Older Adults: A CLHLS-Based Cohort Study. Nutrients 2023; 15:5120. [PMID: 38140379 PMCID: PMC10745508 DOI: 10.3390/nu15245120] [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: 11/17/2023] [Revised: 12/06/2023] [Accepted: 12/14/2023] [Indexed: 12/24/2023] Open
Abstract
Within the realm of aging, the nexus between diet and health has garnered considerable attention. However, only select studies have amalgamated insights into the correlation between plant and animal food consumption and frailty. Our aim was to appraise the connections between the overall plant-based diet index (PDI), healthful plant-based diet index (hPDI), and unhealthful plant-based diet index (uPDI) and frailty in the elderly, utilizing data from the Chinese Longitudinal Healthy Longevity Survey (CLHLS). This cohort study drew upon CLHLS data spanning from 2008 to 2018. The PDI, hPDI, and uPDI were gauged using a simplified food frequency questionnaire (FFQ). A frailty index, encompassing 35 variables across major health domains, was formulated. Cox proportional hazard models were employed to scrutinize the associations between the three plant-based dietary indices and frailty in older adults, including an exploration of gender disparities in these associations. A cohort of 2883 study participants was encompassed, with 1987 (68.9%) observed to be either frail or in the pre-frail stage. The Cox model with penalized spline exhibited linear associations of PDI, hPDI, and uPDI with the frailty index. Following covariate adjustments, it was discerned that older adults situated in the highest quartiles of PDI (HR = 0.86, 95% CI: 0.77-0.95) and hPDI (HR = 0.83, 95% CI: 0.74-0.93) experienced a 14% and 17% diminished risk of frailty compared to those in the lowest quartiles of PDI and hPDI, respectively. Conversely, when contrasted with those in the lowest quartile of uPDI, older adults adhering to the highest tertile of uPDI exhibited a 21% elevated risk of frailty (HR = 1.21, 95% CI: 1.08-1.36), with both associations achieving statistical significance (p < 0.01). Moreover, additional subgroup analyses revealed that the protective effects of PDI and hPDI against frailty and the deleterious effects of uPDI were more conspicuous in men compared to women. To forestall or decelerate the progression of frailty in the elderly, tailored dietary interventions are imperative, particularly targeting male seniors.
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Affiliation(s)
| | | | | | | | - Xinyu Zhang
- School of Public Health, Tianjin Medical University, Tianjin 300070, China; (R.Q.); (Y.Y.); (B.S.); (H.L.)
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18
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Misquitta K, Reid N, Hubbard RE, Gordon EH. Factors associated with entry to residential care in frail older inpatients. Australas J Ageing 2023; 42:720-727. [PMID: 37573545 DOI: 10.1111/ajag.13231] [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] [Received: 04/27/2023] [Revised: 07/09/2023] [Accepted: 07/12/2023] [Indexed: 08/15/2023]
Abstract
OBJECTIVE To examine factors that may influence the risk of discharge to a residential aged care facility (RACF) in a population of frail older inpatients. METHODS We analysed data from 5846 inpatients aged over 60 years from 27 hospitals in Queensland, Australia, admitted from independent living and referred for geriatric consultation. Patients underwent an interRAI Acute Care Comprehensive Geriatric Assessment by trained nurses. Frailty was assessed using a 52-item frailty index (FI). Risk/protective factors were determined a priori. Logistic regression assessed the relationship between factors and discharge destination, adjusted for FI, age, sex and hospital. Frailty × risk/protective factor interactions were performed. RESULTS Patients had a mean (SD) age of 79.7 (8.2) years and a mean (SD) FI of 0.44 (0.14). Twenty-nine per cent (n = 1678) of patients were discharged to an RACF. Each 0.1 increment in FI increased the risk of discharge to an RACF by 54% (OR 1.54, 95% CI 1.40-1.68, p < 0.01). Being married or in a de facto relationship had protective effects up to an FI of 0.7, whereas behavioural and psychological symptoms of dementia (BPSD) increased the risk of RACF discharge up to an FI of 0.7. Female sex, faecal incontinence and living alone did not influence the relationship between frailty and discharge destination. CONCLUSIONS The association between frailty and discharge to RACF has previously been recognised but here we found that risk and protective factors can influence this association. Whether early identification and management of mutable factors can reduce discharge to RACF should be addressed in future studies.
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Affiliation(s)
- Karen Misquitta
- Faculty of Medicine, The University of Queensland, Brisbane, Queensland, Australia
| | - Natasha Reid
- Centre for Health Services Research, The University of Queensland, Brisbane, Queensland, Australia
| | - Ruth E Hubbard
- Centre for Health Services Research, The University of Queensland, Brisbane, Queensland, Australia
| | - Emily H Gordon
- Centre for Health Services Research, The University of Queensland, Brisbane, Queensland, Australia
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Blodgett JM, Ahmadi M, Stamatakis E, Rockwood K, Hamer M. Fractal complexity of daily physical activity and cognitive function in a midlife cohort. Sci Rep 2023; 13:20340. [PMID: 37990028 PMCID: PMC10663528 DOI: 10.1038/s41598-023-47200-x] [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: 06/02/2023] [Accepted: 11/10/2023] [Indexed: 11/23/2023] Open
Abstract
High stability of fluctuation in physiological patterns across fixed time periods suggest healthy fractal complexity, while greater randomness in fluctuation patterns may indicate underlying disease processes. The importance of fractal stability in mid-life remains unexplored. We quantified fractal regulation patterns in 24-h accelerometer data and examined associations with cognitive function in midlife. Data from 5097 individuals (aged 46) from the 1970 British Cohort Study were analyzed. Participants wore thigh-mounted accelerometers for seven days and completed cognitive tests (verbal fluency, memory, processing speed; derived composite z-score). Detrended fluctuation analysis (DFA) was used to examine temporal correlations of acceleration magnitude across 25 time scales (range: 1 min-10 h). Linear regression examined associations between DFA scaling exponents (DFAe) and each standardised cognitive outcome. DFAe was normally distributed (mean ± SD: 0.90 ± 0.06; range: 0.72-1.25). In males, a 0.10 increase in DFAe was associated with a 0.30 (95% Confidence Interval: 0.14, 0.47) increase in composite cognitive z-score in unadjusted models; associations were strongest for verbal fluency (0.10 [0.04, 0.16]). Associations remained in fully-adjusted models for verbal fluency only (0.06 [0.00, 0.12]). There was no association between DFA and cognition in females. Greater fractal stability in men was associated with better cognitive function. This could indicate mechanisms through which fractal complexity may scale up to and contribute to cognitive clinical endpoints.
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Affiliation(s)
- Joanna M Blodgett
- Institute of Sport Exercise and Health, Division of Surgery and Interventional Science, University College London, London, UK.
| | - Matthew Ahmadi
- School of Health Sciences, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
- Mackenzie Wearables Research Hub, Charles Perkins Centre, University of Sydney, Sydney, NSW, Australia
| | - Emmanuel Stamatakis
- School of Health Sciences, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
- Mackenzie Wearables Research Hub, Charles Perkins Centre, University of Sydney, Sydney, NSW, Australia
| | - Kenneth Rockwood
- Geriatric Medicine Research, Department of Medicine, Dalhousie University, Halifax, NS, Canada
| | - Mark Hamer
- Institute of Sport Exercise and Health, Division of Surgery and Interventional Science, University College London, London, UK
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20
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Deng Y, Li N, Wang Y, Xiong C, Zou X. Risk Factors and Prediction Nomogram of Cognitive Frailty with Diabetes in the Elderly. Diabetes Metab Syndr Obes 2023; 16:3175-3185. [PMID: 37867632 PMCID: PMC10588717 DOI: 10.2147/dmso.s426315] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Accepted: 10/02/2023] [Indexed: 10/24/2023] Open
Abstract
Purpose Diabetes is a well-recognized risk factor for cognitive frailty. This study aimed to investigate the influencing factors of cognitive frailty in elderly patients with diabetes and develop a nomogram for its assessment. Methods We collected the clinical data of diabetic patients aged 60 years or older and the patients were divided into training and validation cohorts at a ratio of 7:3. In the training cohort, logistic regression was used to screen out the influencing factors of cognitive frailty in elderly diabetic patients, and a risk prediction model and nomogram were constructed and verified in the validation cohort. The performance of the model was evaluated using various measures, including the area under the receiver operating characteristic curve, calibration curve, Hosmer-Lemeshow test and decision curve analysis. Results A total of 315 elderly diabetic patients were included, of which 87 (27.6%) patients had cognitive frailty. Age, albumin levels, calf circumference, duration of diabetes, intellectual activity, and depressive state were identified as independent risk factors for cognitive frailty in older patients with diabetes (P < 0.05). The training cohort and validation cohort demonstrated area under curve (AUC) values of 0.866 and 0.821, respectively. Conclusion Older patients with diabetes have a higher prevalence of cognitive frailty. The nomogram model exhibited satisfactory calibration and identification, providing a reliable tool for assessing the risk of cognitive frailty in individuals with diabetes.
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Affiliation(s)
- Yinhui Deng
- Department of Nursing, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, People’s Republic of China
| | - Na Li
- School of Nursing, Guangzhou Medical University, Guangzhou, Guangdong, People’s Republic of China
| | - Yaru Wang
- School of Nursing, Guangzhou Medical University, Guangzhou, Guangdong, People’s Republic of China
| | - Chen Xiong
- School of Nursing, Guangzhou Medical University, Guangzhou, Guangdong, People’s Republic of China
| | - Xiaofang Zou
- Department of Nursing, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, People’s Republic of China
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21
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Li X, Zhang Y, Zhang C, Zheng Y, Liu R, Xiao S. Education counteracts the genetic risk of Alzheimer's disease without an interaction effect. Front Public Health 2023; 11:1178017. [PMID: 37663829 PMCID: PMC10471486 DOI: 10.3389/fpubh.2023.1178017] [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] [Received: 03/02/2023] [Accepted: 07/31/2023] [Indexed: 09/05/2023] Open
Abstract
Background Alzheimer's disease (AD) is a major cause of disability and mortality in older adults. This study aimed to investigate the association of AD with education and genetic factors. Methods We conducted a prospective cohort study using data from the UK Biobank. Genetic risk was assessed using a polygenic risk score for AD. The educational level was categorized as either low, intermediate, or high. AD was defined using the International Classification of Diseases and Related Health Problems, 10th revision. Logistic regression models were used to investigate the independent and combined effects of genetic factors and educational levels on the risk of AD. Results We included 318,535 participants in this study (age: 56.53 ± 8.09 years; male: 44.81%). Compared with a low genetic risk, a high genetic risk was associated with a significantly greater risk of AD (OR = 7.09, 95% CI: 6.09-8.26). A high educational level was associated with a 30% lower risk of AD compared with a low educational level (OR = 0.70, 95% CI: 0.60-0.81). Combining genetic risk and education categories, individuals with a low genetic risk and high educational level had a more than 90% (OR = 0.09, 95% CI: 0.05-0.16) lower risk of AD compared to those with a high genetic risk and low educational level. There was no significant interaction between genetic risk and educational level regarding AD risk (p for interaction = 0.359). Conclusion Education counteracts the genetic risk of AD, without an interaction effect. Increasing education to reduce the incidence of AD is of same importance across individuals with different genetic risk.
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Affiliation(s)
- Xuping Li
- Xiangya School of Public Health, Central South University, Changsha, Hunan, China
| | - Yushi Zhang
- Yale School of Public Health, New Haven, CT, United States
| | - Chengcheng Zhang
- Xiangya School of Public Health, Central South University, Changsha, Hunan, China
| | - Ying Zheng
- Xiangya School of Public Health, Central South University, Changsha, Hunan, China
| | - Ruilin Liu
- The Clinical Center for Gene Diagnosis and Therapy, The Second Xiangya Hospital of Central South University, Central South University, Changsha, China
| | - Shuiyuan Xiao
- Xiangya School of Public Health, Central South University, Changsha, Hunan, China
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22
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Su L, Liao Y, Liu X, Xie X, Li Y. Increased risk of dementia among people with a history of fractures: a systematic review and meta-analysis of population-based studies. Front Neurol 2023; 14:1185721. [PMID: 37545728 PMCID: PMC10400716 DOI: 10.3389/fneur.2023.1185721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Accepted: 06/23/2023] [Indexed: 08/08/2023] Open
Abstract
Background Emerging evidence suggests that there may be an association between a history of fractures and dementia risk, but the epidemiological findings are inconsistent. We, therefore, conducted a meta-analysis to systematically assess the risk of dementia among people with a history of fractures. Methods We comprehensively searched four electronic databases (PubMed, Web of Science, Embase, and Cochrane Library) for relevant literature published from inception to 10 January 2023. Longitudinal observational studies that investigated the association between any type of fracture occurrence and the subsequent risk of dementia were included for qualitative and quantitative analysis. Risk estimates were pooled using fixed-effects or random-effects models according to the level of heterogeneity. The Newcastle-Ottawa scale was used to evaluate the risk of bias in the included studies. Results A total of seven population-based studies involving 3,658,108 participants (136,179 with a history of fractures) were eventually included. Pooled results showed a significant association between fracture and subsequent risk of dementia [hazard ratio (HR) = 1.28, 95% confidence interval (CI): 1.11-1.48] in cohort studies. Patients with fractures at different sites showed a similar trend toward increased risk of subsequent dementia. No gender, age, region, duration of follow-up, study quality, or study design specificity were observed. Sensitivity analysis indicates that the current results are robust. No publication bias existed. The results were similar in the cohort study with the standardized incidence ratio (SIR) as the statistical measure (SIR = 1.58, 95% CI: 1.25-2.00) and in the case-control study (OR = 1.38, 95% CI: 1.18-1.61). Of note, the causal relationship between fracture and dementia was not demonstrated in this meta-analysis. Conclusion People with a history of fractures are at increased risk of developing dementia. Enhanced screening and preventive management of dementia in people with a history of fractures may be beneficial.
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23
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Wang X, Wen J, Gu S, Zhang L, Qi X. Frailty in asthma-COPD overlap: a cross-sectional study of association and risk factors in the NHANES database. BMJ Open Respir Res 2023; 10:e001713. [PMID: 37336621 DOI: 10.1136/bmjresp-2023-001713] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 06/09/2023] [Indexed: 06/21/2023] Open
Abstract
BACKGROUND Asthma-chronic obstructive pulmonary disease (COPD) overlap (ACO) is a condition characterised by the simultaneous presence of features of both asthma and COPD. The study aims to investigate the association between ACO and frailty among middle-aged and elderly populations, and identify the risk factors for frailty in individuals with ACO. METHODS We conducted a cross-sectional study with 34 403 eligible participants (aged ≥40 years) from the National Health and Nutrition Examination Survey 1999-2018 cycles. Participants were stratified into four groups: ACO, asthma, COPD and non-asthma/COPD. Frailty assessment was based on frailty index, generating frail and non-frail group. Univariate and multivariate survey-weighted logistic regression analysis were used to determine the association between ACO and frailty, and to identify the risk factors for frailty in ACO. RESULTS The frailty prevalence in participants with ACO was 60.2%, significantly higher than that in those with asthma (32.3%) and COPD (40.6%). In the unadjusted model, participants with ACO exhibited six-fold higher odds of frailty (OR 6.30, 95% CI 5.29 to 7.49), which was significantly greater than those with COPD (OR 2.84, 95% CI 2.46 to 3.28) and asthma (OR 1.99, 95% CI 1.80 to 2.18), using the non-asthma/COPD group as a reference. After adjusting for all confounders, participants with ACO had over four times higher odds of frailty (OR 4.48, 95% CI 3.53 to 5.71), still higher than those with asthma and COPD. The findings remained robust in sensitivity and subgroup analyses. Furthermore, hypertension, cancer, cardiovascular disease, chronic kidney disease and cognitive disorders were identified as risk factors for frailty among ACO participants, while higher income and education levels were protective factors. CONCLUSION Patients (aged ≥40 years) with ACO were at a higher risk of frailty, regardless of age or sex, compared with those with asthma or COPD alone. Greater attention should be paid to patients with ACO, regardless of their age.
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Affiliation(s)
- Xinyu Wang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Jingli Wen
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Shujun Gu
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Lixi Zhang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Xu Qi
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
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24
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Caldwell JZ, Isenberg N. The aging brain: risk factors and interventions for long term brain health in women. Curr Opin Obstet Gynecol 2023; 35:169-175. [PMID: 36912325 PMCID: PMC10023345 DOI: 10.1097/gco.0000000000000849] [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] [Indexed: 03/14/2023]
Abstract
PURPOSE OF REVIEW Poor cognitive aging and dementia pose a significant public health burden, and women face unique risks compared to men. Recent research highlights the role of genetics, menopause, chronic disease, and lifestyle in risk and resilience in women's cognitive aging. This work suggests avenues for clinical action at midlife that may change the course of brain health in aging. RECENT FINDINGS Studies indicate women's risk for poor cognitive aging relates in part to hormone changes at menopause, a time when memory, brain structure and function, and Alzheimer's pathology may be observed in women and not men. Medical and lifestyle risks including diabetes, hypertension, and low physical activity also contribute to women's unique risks. At the same time, literature on resilience suggests women may benefit from lifestyle and chronic disease intervention, possibly more than men. Current studies emphasize the importance of interacting genetic and lifestyle risks, and effects of social determinants of health. SUMMARY Women have greater risk than men for poor cognitive aging; however, by treating the whole person, including genetics, lifestyle, and social environment, clinicians have an opportunity to support healthy cognitive aging in women and reduce the future public health burden of dementia.
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Affiliation(s)
- Jessica Z.K. Caldwell
- Cleveland Clinic Lou Ruvo Center for Brain Health, 888 W. Bonneville Ave., Las Vegas, NV 89106
| | - Nancy Isenberg
- Providence Swedish Center for Healthy Aging, Swedish Neuroscience Institute, 1600 E. Jefferson St. A Level, Seattle, WA 98122
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25
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Li F, Yan Y, Zheng L, Wang C, Guan X, Hong S, Guo H. Frailty and its combined effects with lifestyle factors on cognitive function: a cross-sectional study. BMC Geriatr 2023; 23:79. [PMID: 36747124 PMCID: PMC9900934 DOI: 10.1186/s12877-023-03761-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 01/19/2023] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Frailty describes an age-related state of deterioration in biological function. This study aimed to investigate the association between frailty and cognitive function and its combined effects with lifestyles. METHODS A total of 3,279 participants from the Dongfeng-Tongji (DFTJ) cohort were tested the cognitive function by using the Chinese version of Mini-mental State Examination (MMSE). Frailty was evaluated based on a 35-item frailty index (FI). Frailty status was dichotomized into robust (FI < 0.15) and frail (FI ≥ 0.15). Multivariate generalized linear regression models and logistic regression models were used to estimate the associations of frailty with MMSE score and cognitive impairment. We also analysed the modification and combined effects of lifestyle factors, including smoking status, drinking status, and regular physical exercise, on the above associations. RESULTS FI was significantly associated with lower MMSE score [β (95%Cl) = -0.28 (-0.43, -0.13)] and cognitive impairment [OR (95%Cl) = 1.19 (1.04, 1.35)]. The association of frailty status with MMSE were found to be stronger among ever smokers [β(95%Cl) = -1.08 (-1.64, -0.51)] and physical inactive individuals [β(95%Cl) = -1.59 (-2.63, -0.54)] while weaker or not significant among never smokers [β(95%Cl) = -0.30 (-0.62, 0.01)] and physical active individuals [β(95%Cl) = -0.37 (-0.65, -0.08))]. There were significant combined effects of frailty status with unhealthy lifestyles including smoking, alcohol drinking, and physical inactive on cognitive impairment. CONCLUSIONS Frailty was associated with cognitive impairment among Chinese middle-aged and elderly people, while smoking cessation and regular physical exercise could attenuate the above associations, which highlight the potential preventive interventions.
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Affiliation(s)
- Fangqing Li
- grid.33199.310000 0004 0368 7223Department of Occupational and Environmental Health, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Rd, Wuhan, 430030 Hubei China
| | - Yike Yan
- grid.33199.310000 0004 0368 7223Department of Occupational and Environmental Health, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Rd, Wuhan, 430030 Hubei China
| | - Lei Zheng
- grid.33199.310000 0004 0368 7223Department of Occupational and Environmental Health, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Rd, Wuhan, 430030 Hubei China
| | - Chenming Wang
- grid.33199.310000 0004 0368 7223Department of Occupational and Environmental Health, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Rd, Wuhan, 430030 Hubei China
| | - Xin Guan
- grid.33199.310000 0004 0368 7223Department of Occupational and Environmental Health, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Rd, Wuhan, 430030 Hubei China
| | - Shiru Hong
- grid.33199.310000 0004 0368 7223Department of Occupational and Environmental Health, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Rd, Wuhan, 430030 Hubei China
| | - Huan Guo
- Department of Occupational and Environmental Health, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Rd, Wuhan, 430030, Hubei, China.
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26
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Ward DD, Martin J, Gordon EH. Is There a Sex-Frailty Paradox in Dementia? J Nutr Health Aging 2023; 27:1281-1283. [PMID: 38151880 DOI: 10.1007/s12603-023-2040-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Accepted: 11/11/2023] [Indexed: 12/29/2023]
Affiliation(s)
- D D Ward
- David D. Ward, Centre for Health Services Research, The University of Queensland, Level 2, Building 33, Princess Alexandra Hospital, 199 Ipswich Road, Woolloongabba, QLD 4121, Australia.
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Meysami S, Raji CA, Glatt RM, Popa ES, Ganapathi AS, Bookheimer T, Slyapich CB, Pierce KP, Richards CJ, Lampa MG, Gill JM, Rapozo MK, Hodes JF, Tongson YM, Wong CL, Kim M, Porter VR, Kaiser SA, Panos SE, Dye RV, Miller KJ, Bookheimer SY, Martin NA, Kesari S, Kelly DF, Bramen JE, Siddarth P, Merrill DA. Handgrip Strength Is Related to Hippocampal and Lobar Brain Volumes in a Cohort of Cognitively Impaired Older Adults with Confirmed Amyloid Burden. J Alzheimers Dis 2023; 91:999-1006. [PMID: 36530088 PMCID: PMC9912728 DOI: 10.3233/jad-220886] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/18/2022] [Indexed: 12/23/2022]
Abstract
BACKGROUND Strength and mobility are essential for activities of daily living. With aging, weaker handgrip strength, mobility, and asymmetry predict poorer cognition. We therefore sought to quantify the relationship between handgrip metrics and volumes quantified on brain magnetic resonance imaging (MRI). OBJECTIVE To model the relationships between handgrip strength, mobility, and MRI volumetry. METHODS We selected 38 participants with Alzheimer's disease dementia: biomarker evidence of amyloidosis and impaired cognition. Handgrip strength on dominant and non-dominant hands was measured with a hand dynamometer. Handgrip asymmetry was calculated. Two-minute walk test (2MWT) mobility evaluation was combined with handgrip strength to identify non-frail versus frail persons. Brain MRI volumes were quantified with Neuroreader. Multiple regression adjusting for age, sex, education, handedness, body mass index, and head size modeled handgrip strength, asymmetry and 2MWT with brain volumes. We modeled non-frail versus frail status relationships with brain structures by analysis of covariance. RESULTS Higher non-dominant handgrip strength was associated with larger volumes in the hippocampus (p = 0.02). Dominant handgrip strength was related to higher frontal lobe volumes (p = 0.02). Higher 2MWT scores were associated with larger hippocampal (p = 0.04), frontal (p = 0.01), temporal (p = 0.03), parietal (p = 0.009), and occipital lobe (p = 0.005) volumes. Frailty was associated with reduced frontal, temporal, and parietal lobe volumes. CONCLUSION Greater handgrip strength and mobility were related to larger hippocampal and lobar brain volumes. Interventions focused on improving handgrip strength and mobility may seek to include quantified brain volumes on MR imaging as endpoints.
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Affiliation(s)
- Somayeh Meysami
- Pacific Brain Health Center, Pacific Neuroscience Institute and Foundation, Santa Monica, CA, USA
- Saint John’s Cancer Institute at Providence Saint John’s Health Center, Santa Monica, CA, USA
| | - Cyrus A. Raji
- Mallinckrodt Institute of Radiology, Washington University, St. Louis, MO, USA
| | - Ryan M. Glatt
- Pacific Brain Health Center, Pacific Neuroscience Institute and Foundation, Santa Monica, CA, USA
- Providence Saint John’s Health Center, Santa Monica, CA, USA
| | - Emily S. Popa
- Pacific Brain Health Center, Pacific Neuroscience Institute and Foundation, Santa Monica, CA, USA
| | - Aarthi S. Ganapathi
- Pacific Brain Health Center, Pacific Neuroscience Institute and Foundation, Santa Monica, CA, USA
| | - Tess Bookheimer
- Pacific Brain Health Center, Pacific Neuroscience Institute and Foundation, Santa Monica, CA, USA
| | - Colby B. Slyapich
- Pacific Brain Health Center, Pacific Neuroscience Institute and Foundation, Santa Monica, CA, USA
| | - Kyron P. Pierce
- Pacific Brain Health Center, Pacific Neuroscience Institute and Foundation, Santa Monica, CA, USA
| | - Casey J. Richards
- Pacific Brain Health Center, Pacific Neuroscience Institute and Foundation, Santa Monica, CA, USA
| | - Melanie G. Lampa
- Pacific Brain Health Center, Pacific Neuroscience Institute and Foundation, Santa Monica, CA, USA
| | - Jaya M. Gill
- Pacific Brain Health Center, Pacific Neuroscience Institute and Foundation, Santa Monica, CA, USA
| | - Molly K. Rapozo
- Pacific Brain Health Center, Pacific Neuroscience Institute and Foundation, Santa Monica, CA, USA
| | - John F. Hodes
- Pacific Brain Health Center, Pacific Neuroscience Institute and Foundation, Santa Monica, CA, USA
- Drexel University College of Medicine, Philadelphia, PA, USA
| | - Ynez M. Tongson
- Providence Saint John’s Health Center, Santa Monica, CA, USA
| | - Claudia L. Wong
- Pacific Brain Health Center, Pacific Neuroscience Institute and Foundation, Santa Monica, CA, USA
- Providence Saint John’s Health Center, Santa Monica, CA, USA
| | - Mihae Kim
- Pacific Brain Health Center, Pacific Neuroscience Institute and Foundation, Santa Monica, CA, USA
- Providence Saint John’s Health Center, Santa Monica, CA, USA
| | - Verna R. Porter
- Pacific Brain Health Center, Pacific Neuroscience Institute and Foundation, Santa Monica, CA, USA
- Saint John’s Cancer Institute at Providence Saint John’s Health Center, Santa Monica, CA, USA
- Providence Saint John’s Health Center, Santa Monica, CA, USA
| | - Scott A. Kaiser
- Pacific Brain Health Center, Pacific Neuroscience Institute and Foundation, Santa Monica, CA, USA
- Providence Saint John’s Health Center, Santa Monica, CA, USA
| | - Stella E. Panos
- Pacific Brain Health Center, Pacific Neuroscience Institute and Foundation, Santa Monica, CA, USA
- Saint John’s Cancer Institute at Providence Saint John’s Health Center, Santa Monica, CA, USA
- Providence Saint John’s Health Center, Santa Monica, CA, USA
| | - Richelin V. Dye
- Pacific Brain Health Center, Pacific Neuroscience Institute and Foundation, Santa Monica, CA, USA
- Behavioral Health Institute, Loma Linda University School of Medicine, Loma Linda, CA, USA
| | - Karen J. Miller
- Pacific Brain Health Center, Pacific Neuroscience Institute and Foundation, Santa Monica, CA, USA
- Saint John’s Cancer Institute at Providence Saint John’s Health Center, Santa Monica, CA, USA
- Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine at University of California Los Angeles, Los Angeles, CA, USA
| | - Susan Y. Bookheimer
- Pacific Brain Health Center, Pacific Neuroscience Institute and Foundation, Santa Monica, CA, USA
- Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine at University of California Los Angeles, Los Angeles, CA, USA
| | - Neil A. Martin
- Pacific Brain Health Center, Pacific Neuroscience Institute and Foundation, Santa Monica, CA, USA
- Saint John’s Cancer Institute at Providence Saint John’s Health Center, Santa Monica, CA, USA
- Providence Saint John’s Health Center, Santa Monica, CA, USA
| | - Santosh Kesari
- Pacific Brain Health Center, Pacific Neuroscience Institute and Foundation, Santa Monica, CA, USA
- Saint John’s Cancer Institute at Providence Saint John’s Health Center, Santa Monica, CA, USA
- Providence Saint John’s Health Center, Santa Monica, CA, USA
| | - Daniel F. Kelly
- Pacific Brain Health Center, Pacific Neuroscience Institute and Foundation, Santa Monica, CA, USA
- Saint John’s Cancer Institute at Providence Saint John’s Health Center, Santa Monica, CA, USA
- Providence Saint John’s Health Center, Santa Monica, CA, USA
| | - Jennifer E. Bramen
- Pacific Brain Health Center, Pacific Neuroscience Institute and Foundation, Santa Monica, CA, USA
- Saint John’s Cancer Institute at Providence Saint John’s Health Center, Santa Monica, CA, USA
- Providence Saint John’s Health Center, Santa Monica, CA, USA
| | - Prabha Siddarth
- Pacific Brain Health Center, Pacific Neuroscience Institute and Foundation, Santa Monica, CA, USA
- Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine at University of California Los Angeles, Los Angeles, CA, USA
| | - David A. Merrill
- Pacific Brain Health Center, Pacific Neuroscience Institute and Foundation, Santa Monica, CA, USA
- Saint John’s Cancer Institute at Providence Saint John’s Health Center, Santa Monica, CA, USA
- Providence Saint John’s Health Center, Santa Monica, CA, USA
- Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine at University of California Los Angeles, Los Angeles, CA, USA
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Frailty and functional brain connectivity (FBC) in older adults with mild cognitive impairment (MCI): baseline results from the SYNERGIC Trial. GeroScience 2022; 45:1033-1048. [PMID: 36539590 PMCID: PMC9767804 DOI: 10.1007/s11357-022-00702-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Accepted: 11/22/2022] [Indexed: 12/24/2022] Open
Abstract
Functional brain connectivity (FBC), or areas that are anatomically separate but temporally synchronized in their activation, represent a sensitive biomarker for monitoring dementia progression. It is unclear whether frailty is associated with FBC in those at higher risk of progression to dementia (e.g., mild cognitive impairment -MCI-) and if sex plays a role. We used baseline data from the SYNERGIC trial, including participants with MCI that received brain MRI. In this cross-sectional analyses (n = 100), we measured frailty using a deficit accumulation frailty index. Using the CONN toolbox, we assessed FBC of networks and regions of interest across the entire connectome. We used Pearson's correlation to investigate the relationship between FBC and frailty index in the full sample and by sex. We also divided the full sample and each sex into tertiles based upon their frailty index score and then assessed between-tertile differences in FBC. The full sample (cluster: size = 291 p-FDR < 0.05) and males (cluster: size = 993 and 451 p-FDR < 0.01) demonstrated that increasing (stronger) connectivity between the right hippocampus and clusters in the temporal gyrus was positively correlated with increasing (worse) frailty. Males also demonstrated between-tertile differences in right hippocampus connectivity to clusters in the lateral occipital cortex (cluster: size = 289 p-FDR < 0.05). Regardless of frailty status, females demonstrated stronger within-network connectivity of the Default-Mode (p = 0.024). Our results suggest that increasing (worse) frailty was associated with increasing (stronger) connectivity between regions not typically linked, which may reflect a compensation tactic by the plastic brain. Furthermore, the relationship between the two variables appears to differ by sex. Our results may help elucidate why specific individuals progress to a dementia syndrome. NCT02808676. https://www.clinicaltrials.gov/ct2/show/NCT02808676.
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Guo CY, Sun Z, Tan CC, Tan L, Xu W. Multi-Concept Frailty Predicts the Late-Life Occurrence of Cognitive Decline or Dementia: An Updated Systematic Review and Meta-Analysis of Longitudinal Studies. Front Aging Neurosci 2022; 14:855553. [PMID: 35645771 PMCID: PMC9131093 DOI: 10.3389/fnagi.2022.855553] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Accepted: 03/17/2022] [Indexed: 12/13/2022] Open
Abstract
BackgroundFrailty is a multidimensional syndrome that increases an individual’s vulnerability for developing adverse health outcomes, which include dementia. It might serve as a promising target for dementia prevention. However, there are currently no studies summarizing the association between multi-concept frailty and the risk of cognitive disorders. This study aims to summarize the evidence of associations between multi-concept frailty and cognitive disorders based on longitudinal studies.MethodsScopus, The Cochrane Library, PsycINFO, CINAHL, PubMed, and EMBASE databases were searched from inception to January 2, 2022. Longitudinal studies, which explored the association of frailty with incident risk of cognitive decline or dementia, were included. The multivariable-adjusted effect estimates were pooled by random-effects models. The evidence credibility was depicted according to the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) method.ResultsA total of 30 longitudinal studies were included. Four types of frailty concepts were involved, including physical, cognitive, social, and biopsychosocial frailty. The meta-analysis comprised 20 studies of 252,571 older adults (mean age: 64.1–80.4 years), among whom 7,388 participants developed cognitive decline or dementia. Physical frailty was associated with higher risk of developing cognitive disorders [pooled relative risk (pRR) = 1.52, 95% confidence interval (CI): 1.28–1.80, I2 = 21.2%, pRR = 1.62 for cognitive decline, 95% CI: 1.07–2.45, I2 = 40.2%, pRR = 1.37 for all-cause dementia (ACD), 95% CI: 1.13–1.66, I2 = 0.0%]. Cognitive frailty (pRR = 2.90, 95% CI: 1.28–6.55, I2 = 78.1%) and pre-frailty (pRR = 4.24, 95% CI: 2.74–6.56, I2 = 30.2%) were linked to higher risk of ACD. Biopsychosocial frailty could predict a 41% (pRR = 1.41, 95% CI: 1.17–1.71) elevated risk of cognitive decline or dementia [pRR = 1.53 (95% CI: 1.19–1.96) for ACD and 1.11 (95% CI: 1.05–1.17) for Alzheimer’s disease (AD)]. In the systematic review, social frailty was associated with a 53% higher risk of AD. Preventing frailty could avoid a maximum of 9.9% cognitive disorders globally. The overall evidence strength is rated as low-to-moderate. Inconsistency and imprecision are major sources of bias.ConclusionFrailty in late life is a promising risk factor for cognitive disorders. Frail elderly should be monitored for their cognitive dynamics and initiate early prevention of dementia.Systematic Review Registrationwww.ClinicalTrials.gov, identifier CRD4202127 3434.
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Nidadavolu LS, Feger D, Wu Y, Grodstein F, Gross AL, Bennett DA, Walston JD, Oh ES, Abadir PM. Circulating Cell-Free Genomic DNA Is Associated with an Increased Risk of Dementia and with Change in Cognitive and Physical Function. J Alzheimers Dis 2022; 89:1233-1240. [PMID: 36031893 PMCID: PMC9969834 DOI: 10.3233/jad-220301] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
BACKGROUND Altered cell homeostasis, seen in cognitive decline and frailty, leads to cell death and turnover, releasing circulating cell-free DNA (ccf-DNA). OBJECTIVE The goal of this study is to determine if serum genomic cell-free DNA (ccf-gDNA) is associated with physical and cognitive decline in older adults. METHODS We used serum from 631 community-dwelling individuals from the Religious Orders Study or Rush Memory and Aging Project who were without cognitive impairment at baseline. ccf-gDNA fragments in serum were quantified using digital PCR. An array of cognitive and physical traits, risk of dementia, global cognition, and frailty at or nearest the time of blood draw were regressed on ccf-DNA, with adjustment for age, sex, race, and education. RESULTS Cross-sectionally, higher ccf-gDNA levels were associated with lower global cognition score and slower gait speed at the evaluation nearest to blood draw. Higher ccf-gDNA levels were associated with increased odds of incident dementia (OR 1.27, 95% CI 1.05, 1.54). Longitudinally, higher levels of ccf-gDNA were associated with steeper general cognitive decline and worsening frailty over eight years of follow up. CONCLUSION This study demonstrates that ccf-gDNA fragments have utility for identifying persons at higher risk of developing dementia and worsening cognition and frailty.
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Affiliation(s)
- Lolita S. Nidadavolu
- Johns Hopkins University School of Medicine, Division of Geriatric Medicine and Gerontology, Baltimore, MD, USA
| | - Danielle Feger
- Johns Hopkins University Center on Aging and Health, Baltimore, MD, USA
| | - Yuqiong Wu
- Johns Hopkins University School of Medicine, Division of Geriatric Medicine and Gerontology, Baltimore, MD, USA
| | - Francine Grodstein
- Rush Alzheimer’s Disease Center, Rush University Medical Center, Chicago, IL, USA
| | - Alden L. Gross
- Johns Hopkins University School of Medicine, Division of Geriatric Medicine and Gerontology, Baltimore, MD, USA
- Johns Hopkins University Center on Aging and Health, Baltimore, MD, USA
| | - David A. Bennett
- Rush Alzheimer’s Disease Center, Rush University Medical Center, Chicago, IL, USA
| | - Jeremy D. Walston
- Johns Hopkins University School of Medicine, Division of Geriatric Medicine and Gerontology, Baltimore, MD, USA
| | - Esther S. Oh
- Johns Hopkins University School of Medicine, Division of Geriatric Medicine and Gerontology, Baltimore, MD, USA
| | - Peter M. Abadir
- Johns Hopkins University School of Medicine, Division of Geriatric Medicine and Gerontology, Baltimore, MD, USA
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