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Tripathi A, Pandey VK, Sharma G, Sharma AR, Taufeeq A, Jha AK, Kim JC. Genomic Insights into Dementia: Precision Medicine and the Impact of Gene-Environment Interaction. Aging Dis 2024; 15:2113-2135. [PMID: 38607741 DOI: 10.14336/ad.2024.0322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Accepted: 03/22/2024] [Indexed: 04/14/2024] Open
Abstract
The diagnosis, treatment, and management of dementia provide significant challenges due to its chronic cognitive impairment. The complexity of this condition is further highlighted by the impact of gene-environment interactions. A recent strategy combines advanced genomics and precision medicine methods to explore the complex genetic foundations of dementia. Utilizing the most recent research in the field of neurogenetics, the importance of precise genetic data in explaining the variation seen in dementia patients can be investigated. Gene-environment interactions are important because they influence genetic susceptibilities and aid in the development and progression of dementia. Modified to each patient's genetic profile, precision medicine has the potential to detect groups at risk and make previously unheard-of predictions about the course of diseases. Precision medicine techniques have the potential to completely transform treatment and diagnosis methods. Targeted medications that target genetic abnormalities will probably appear, providing the possibility for more efficient and customized medical interventions. Investigating the relationship between genes and the environment may lead to preventive measures that would enable people to change their surroundings and minimize the risk of dementia, leading to the improved lifestyle of affected people. This paper provides a comprehensive overview of the genomic insights into dementia, emphasizing the pivotal role of precision medicine, and gene-environment interactions.
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Affiliation(s)
- Anjali Tripathi
- Department of Biotechnology, Sharda School of Engineering and Technology, Sharda University, Greater Noida, Uttar Pradesh, India
| | - Vinay Kumar Pandey
- Division of Research & Innovation (DRI), School of Applied & Life Sciences, Uttaranchal University, Dehradun, Uttarakhand, India
| | - Garima Sharma
- Department of Biomedical Science & Institute of Bioscience and Biotechnology, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Ashish Ranjan Sharma
- Institute for Skeletal Aging & Orthopedic Surgery, Hallym University-Chuncheon Sacred Heart Hospital, Chuncheon-si, 24252, Gangwon-do, Republic of Korea
| | - Anam Taufeeq
- Department of Biotechnology, Faculty of Engineering and Technology, Rama University, Kanpur, Uttar Pradesh, India
| | - Abhimanyu Kumar Jha
- Department of Biotechnology, Sharda School of Engineering and Technology, Sharda University, Greater Noida, Uttar Pradesh, India
| | - Jin-Chul Kim
- Department of Biomedical Science & Institute of Bioscience and Biotechnology, Kangwon National University, Chuncheon 24341, Republic of Korea
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Hofbauer LM, Rodriguez FS. The Mediating Role of Lifestyle Activities in the Association Between Social Deprivation and Cognition in Older Adulthood: Results From the Health and Retirement (HRS) Study. J Aging Health 2024:8982643241273988. [PMID: 39137921 DOI: 10.1177/08982643241273988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/15/2024]
Abstract
Objectives: We aimed to investigate the mediating role of lifestyle activities in the association between social deprivation and cognition. Methods: To investigate, we analysed data of 3867 respondents (Mean Age: 73.37, SD: 5.57) in the U.S. Health and Retirement Study (HRS) using growth curve and path analysis, adjusted for demographic and health covariates. Results: Being in the high (vs. moderate) Social Deprivation Index group was associated with lower cognition scores (β = -2.63, [95 % CI: -2.90, -2.36]). Conversely, higher (vs. lower) Lifestyle Index scores were associated with higher cognition scores (β = 1.17, [95 % CI: 0.72, 1.63]). In mediation analysis, the Lifestyle Index score explained 27 % of the association of So Dep Index group on cognition at the final follow-up. Discussion: While lifestyle activities did mediate the association between social deprivation and cognition, factors not investigated accounted for the majority of the variation. These may include systemic disadvantages.
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Affiliation(s)
- Lena M Hofbauer
- Research Group Psychosocial Epidemiology and Public Health, German Center for Neurodegenerative Diseases (DZNE), Greifswald, Germany
| | - Francisca S Rodriguez
- Research Group Psychosocial Epidemiology and Public Health, German Center for Neurodegenerative Diseases (DZNE), Greifswald, Germany
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Jin J, Sommerlad A, Mukadam N. Association between adult education, brain volume and dementia risk: longitudinal cohort study of UK Biobank participants. GeroScience 2024:10.1007/s11357-024-01285-y. [PMID: 39028453 DOI: 10.1007/s11357-024-01285-y] [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: 12/06/2023] [Accepted: 07/10/2024] [Indexed: 07/20/2024] Open
Abstract
Less childhood education is a potentially modifiable risk factor for developing incident dementia but it is not known if education in later life is protective. We sought to add to previous work by testing the association between adult education and brain volume as well as exploring the impact of continuing adult education versus intermittent participation. We used data from participants of the UK Biobank cohort, with no prevalent dementia who were asked about adult education participation at baseline and at follow-up. Dementia status was ascertained from self-report or electronic health records. Cox proportional hazards models were built to estimate hazard ratios (HRs) between participation in adult education and dementia risk. In 499,337 participants aged between 40 and 69 at baseline with 13.2 years mean follow-up, in analyses adjusted for age, sex, education, deprivation, ethnicity, hypertension, diabetes, ethnicity, obesity, smoking, alcohol use, physical inactivity and social isolation, we replicated previous findings of a protective effect of adult education on dementia risk (HR 0.82, 95% CI 0.74-0.90, P < 0.001), and showed a trend towards protection against dementia if adult education was continued rather than intermittent. Additionally, adult education did not impact on total brain volume (coefficient - 657.4, 95% CI - 2795.1 to 1480.3, P = 0.547) but it was associated with increased hippocampal volume (coefficient 33.9, 95% CI 8.9 to 59.0, P = 0.008) indicating a potential mechanism for protection against dementia. We have added evidence indicating that continuing adult education participation may be beneficial, although numbers for this analysis were very small. Analysis of brain volume indicated that adult education may have a protective effect by preserving hippocampal size or slowing volume loss, in line with the cognitive reserve hypothesis.
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Affiliation(s)
- Jiayin Jin
- Queen Square Institute of Neurology, University College London, London, UK
| | - Andrew Sommerlad
- Division of Psychiatry, University College London, London, UK
- Camden and Islington NHS Foundation Trust, London, UK
| | - Naaheed Mukadam
- Division of Psychiatry, University College London, London, UK.
- Camden and Islington NHS Foundation Trust, London, UK.
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Chang KC, Chen HS, Wu CS, Chang CK, Hwang JJ, Huang SH, Chen YM, Cheng BW, Weng MH, Hsu CC, Huang WL. Prospective Impacts of Social Participation Activities on Cognitive and Psychopathological Statuses in Community-Dwelling Older Adults. Clin Gerontol 2024:1-12. [PMID: 38967355 DOI: 10.1080/07317115.2024.2374518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 07/06/2024]
Abstract
OBJECTIVES This study investigated the impact of social activities on cognitive functioning and psychopathological symptoms. METHODS Participants aged 55 or older were enrolled through communities. Initial measures assessed demographic data, neuropsychological functioning, psychopathological state, and happiness. Social activities were evaluated using a modified 12-item tool, with 3-4 activities as the cutoff. Follow-up after 6-9 months included Mini-Mental State Examination (MMSE), Beck Depression Inventory - II (BDI-II), Beck Anxiety Inventory (BAI), Health Assessment Questionnaire (HAQ), and Patient Health Questionnaire-15 (PHQ-15) measurements. Predictive models for psychiatric and cognitive statuses were built using multiple linear regression, adjusting for baseline conditions. RESULTS Initially, 516 older individuals enrolled, with 403 undergoing follow-up. During follow-up, the low participation group reported lower MMSE scores, higher BAI scores, and increased PHQ-15 risk. Negative correlations between social activity numbers and PHQ-15 results were found. Engagement in social clubs correlated positively with higher MMSE scores, while regular interactions with one's adult child(ren) were linked to decreased BAI scores. CONCLUSIONS The quantity of social activities was associated with lower somatic distress. Social club engagement positively influenced cognition, and regular interactions with one's adult child(ren) mitigated anxiety among older individuals. CLINICAL IMPLICATIONS Enough types of social activities, participating in social clubs, and adequate interactions with children protected against psychopathologies.
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Affiliation(s)
- Kai-Chieh Chang
- Department of Neurology, National Taiwan University Hospital Yunlin Branch, Yunlin County, Taiwan
| | - Hsin-Shui Chen
- Department of Physical Medicine and Rehabilitation, National Taiwan University Hospital Yunlin Branch, Yunlin County, Taiwan
| | - Chi-Shin Wu
- Department of Psychiatry, National Taiwan University Hospital Yunlin Branch, Yunlin County, Taiwan
- National Center for Geriatrics and Welfare Research, National Health Research Institutes, Miaoli County, Taiwan
- Department of Psychiatry, College of Medicine, National Taiwan University, Taipei City, Taiwan
| | - Chin-Kai Chang
- Department of Geriatrics and Gerontology, National Taiwan University Hospital Yunlin Branch, Yunlin County, Taiwan
| | - Juey-Jen Hwang
- Department of Internal Medicine, National Taiwan University Hospital
- Department of Cardiovascular Medicine, Fu Jen Catholic University Hospital, Taiwan
| | - Su-Hua Huang
- Department of Nutrition, National Taiwan University Hospital Yunlin Branch, Yunlin County, Taiwan
| | - Yung-Ming Chen
- Department of Internal Medicine, National Taiwan University Hospital
- Department of Geriatrics and Gerontology, National Taiwan University Hospital, Taiwan
- Department of Internal Medicine, National Taiwan University Hospital Bei-Hu Branch
| | - Bor-Wen Cheng
- Department of Industrial Engineering and Management, National Yunlin University of Science and Technology, Yunlin County, Taiwan
| | - Min-Hsiu Weng
- Graduate School of Applied Chinese Studies, National Yunlin University of Science and Technology,Yunlin County, Taiwan
| | - Chih-Cheng Hsu
- National Center for Geriatrics and Welfare Research, National Health Research Institutes, Miaoli County, Taiwan
| | - Wei-Lieh Huang
- Department of Psychiatry, National Taiwan University Hospital Yunlin Branch, Yunlin County, Taiwan
- Department of Psychiatry, College of Medicine, National Taiwan University, Taipei City, Taiwan
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Htun HL, Teshale AB, Ryan J, Owen AJ, Woods RL, Chong TT, Murray AM, Shah RC, Orchard SG, Freak‐Poli R. Gender-specific analysis of social connection patterns and risk of dementia in community-dwelling older people. Alzheimers Dement 2024; 20:4879-4890. [PMID: 38874322 PMCID: PMC11247681 DOI: 10.1002/alz.14055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 04/15/2024] [Accepted: 05/07/2024] [Indexed: 06/15/2024]
Abstract
INTRODUCTION Poor social connection is considered a risk factor for dementia. Since socializing behaviors may cluster together or act compensatorily, we aimed to investigate social connection patterns and their association with dementia, for men and women separately. METHODS A total of 12,896 community-dwelling older adults (mean ± SD age: 75.2 ± 4.3 years, 54% women) without major cognitive impairment were included. Latent class analysis was conducted using 24 baseline social connection indicators. Cox proportional hazards regression was used to estimate the association between latent classes and incident dementia over 12 (median: 8.4) years follow-up. RESULTS Three distinct classes were identified in both genders: strong social connections with an intermediate friend-relative network (Class 1: men, 43.8%; women, 37.9%), weak social connections (Class 2: men, 29.6%; women, 27.4%), and strong social connections with a larger friend-relative network (Class 3: men, 26.6%; women, 34.7%). Compared to Class 1, men in Class 2 (HR: 1.38, 95% CI: 1.08-1.77) and women in Class 3 (HR: 1.27, 95% CI: 1.01-1.60) had an increased risk of dementia. DISCUSSION Dementia risk varies with different social connection patterns among older men and women. HIGHLIGHTS Three distinct social connection patterns were identified based on 24 indicators. These patterns were related to dementia risk differently in men and women. In men, a weak social connection pattern was associated with a higher dementia risk. In women, a strong social connection with a relatively larger friend-relative network was associated with a greater dementia risk.
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Affiliation(s)
- Htet Lin Htun
- School of Public Health and Preventive MedicineMonash UniversityMelbourneVictoriaAustralia
| | | | - Joanne Ryan
- School of Public Health and Preventive MedicineMonash UniversityMelbourneVictoriaAustralia
| | - Alice J. Owen
- School of Public Health and Preventive MedicineMonash UniversityMelbourneVictoriaAustralia
| | - Robyn L. Woods
- School of Public Health and Preventive MedicineMonash UniversityMelbourneVictoriaAustralia
| | - Trevor T.‐J. Chong
- Turner Institute for Brain and Mental HealthSchool of Psychological SciencesMonash UniversityMelbourneVictoriaAustralia
- Department of NeurologyAlfred HealthMelbourneVictoriaAustralia
- Department of Clinical NeurosciencesSt Vincent's HospitalMelbourneVictoriaAustralia
| | - Anne M. Murray
- Berman Center for Outcomes and Clinical ResearchHennepin Healthcare Research InstituteMinneapolisMinnesotaUSA
- Division of GeriatricsDepartment of MedicineHennepin HealthcareMinneapolisMinnesotaUSA
| | - Raj C. Shah
- Department of Family and Preventive Medicine and the Rush Alzheimer's Disease CenterRush University Medical CenterChicagoIllinoisUSA
| | - Suzanne G. Orchard
- School of Public Health and Preventive MedicineMonash UniversityMelbourneVictoriaAustralia
| | - Rosanne Freak‐Poli
- School of Public Health and Preventive MedicineMonash UniversityMelbourneVictoriaAustralia
- Stroke and Ageing ResearchDepartment of MedicineSchool of Clinical Sciences at Monash HealthMonash UniversityMelbourneVictoriaAustralia
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Truin LS, Köhler S, Heger IS, van Boxtel MP, Schram MT, Backes WH, Jansen JF, van Dongen MM, de Vries NK, de Vries H, Eussen SJ, Stehouwer CD, de Vugt ME, Deckers K. Associations of an individual's need for cognition with structural brain damage and cognitive functioning/impairment: cross-sectional population-based study. Br J Psychiatry 2024; 224:189-197. [PMID: 38105553 PMCID: PMC7615981 DOI: 10.1192/bjp.2023.159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Abstract
BACKGROUND High cognitive activity possibly reduces the risk of cognitive decline and dementia. AIMS To investigate associations between an individual's need to engage in cognitively stimulating activities (need for cognition, NFC) and structural brain damage and cognitive functioning in the Dutch general population with and without existing cognitive impairment. METHOD Cross-sectional data were used from the population-based cohort of the Maastricht Study. NFC was measured using the Need For Cognition Scale. Cognitive functioning was tested in three domains: verbal memory, information processing speed, and executive functioning and attention. Values 1.5 s.d. below the mean were defined as cognitive impairment. Standardised volumes of white matter hyperintensities (WMH), cerebrospinal fluid (CSF) and presence of cerebral small vessel disease (CSVD) were derived from 3T magnetic resonance imaging. Multiple linear and binary logistic regression analyses were used adjusted for demographic, somatic and lifestyle factors. RESULTS Participants (n = 4209; mean age 59.06 years, s.d. = 8.58; 50.1% women) with higher NFC scores had higher overall cognition scores (B = 0.21, 95% CI 0.17-0.26, P < 0.001) and lower odds for CSVD (OR = 0.74, 95% CI 0.60-0.91, P = 0.005) and cognitive impairment (OR = 0.60, 95% CI 0.48-0.76, P < 0.001) after adjustment for demographic, somatic and lifestyle factors. The association between NFC score and cognitive functioning was similar for individuals with and without prevalent cognitive impairment. We found no significant association between NFC and WMH or CSF volumes. CONCLUSIONS A high need to engage in cognitively stimulating activities is associated with better cognitive functioning and less presence of CSVD and cognitive impairment. This suggests that, in middle-aged individuals, motivation to engage in cognitively stimulating activities may be an opportunity to improve brain health.
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Affiliation(s)
- Lotte S. Truin
- School for Mental Health & Neuroscience (MHeNs), Faculty of Health, Medicine and Life Sciences, Maastricht University
- Department of Psychiatry and Neuropsychology, Faculty of Health, Medicine and Life Sciences, Maastricht University
| | - Sebastian Köhler
- School for Mental Health & Neuroscience (MHeNs), Faculty of Health, Medicine and Life Sciences, Maastricht University
- Department of Psychiatry and Neuropsychology, Faculty of Health, Medicine and Life Sciences, Maastricht University
| | - Irene S. Heger
- School for Mental Health & Neuroscience (MHeNs), Faculty of Health, Medicine and Life Sciences, Maastricht University
- Department of Psychiatry and Neuropsychology, Faculty of Health, Medicine and Life Sciences, Maastricht University
| | - Martin P.J. van Boxtel
- School for Mental Health & Neuroscience (MHeNs), Faculty of Health, Medicine and Life Sciences, Maastricht University
- Department of Psychiatry and Neuropsychology, Faculty of Health, Medicine and Life Sciences, Maastricht University
| | - Miranda T. Schram
- School for Mental Health & Neuroscience (MHeNs), Faculty of Health, Medicine and Life Sciences, Maastricht University
- School for Cardiovascular Diseases (CARIM), Faculty of Health, Medicine and Life Sciences, Maastricht University
- Department of Internal Medicine, Maastricht University Medical Center
- Maastricht Heart and Vascular Center, Maastricht University Medical Center
| | - Walter H. Backes
- School for Mental Health & Neuroscience (MHeNs), Faculty of Health, Medicine and Life Sciences, Maastricht University
- School for Cardiovascular Diseases (CARIM), Faculty of Health, Medicine and Life Sciences, Maastricht University
- Department of Radiology & Nuclear Medicine, Maastricht University Medical Center
| | - Jacobus F.A. Jansen
- School for Mental Health & Neuroscience (MHeNs), Faculty of Health, Medicine and Life Sciences, Maastricht University
| | | | - Nanne K. de Vries
- Department of Health Promotion, Faculty of Health, Medicine and Life Sciences, Maastricht University
| | - Hein de Vries
- Department of Health Promotion, Faculty of Health, Medicine and Life Sciences, Maastricht University
| | - Simone J.P.M. Eussen
- School for Cardiovascular Diseases (CARIM), Faculty of Health, Medicine and Life Sciences, Maastricht University
- Care and Public Health Research Institute (CAPHRI), Maastricht University, Maastricht, the Netherlands
- Department of Epidemiology, Faculty of Health, Medicine and Life Sciences, Maastricht University
| | - Coen D.A. Stehouwer
- School for Cardiovascular Diseases (CARIM), Faculty of Health, Medicine and Life Sciences, Maastricht University
| | - Marjolein E. de Vugt
- School for Mental Health & Neuroscience (MHeNs), Faculty of Health, Medicine and Life Sciences, Maastricht University
- Department of Psychiatry and Neuropsychology, Faculty of Health, Medicine and Life Sciences, Maastricht University
| | - Kay Deckers
- School for Mental Health & Neuroscience (MHeNs), Faculty of Health, Medicine and Life Sciences, Maastricht University
- Department of Psychiatry and Neuropsychology, Faculty of Health, Medicine and Life Sciences, Maastricht University
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Liu Y, Lu G, Liu L, He Y, Gong W. Cognitive reserve over the life course and risk of dementia: a systematic review and meta-analysis. Front Aging Neurosci 2024; 16:1358992. [PMID: 38681665 PMCID: PMC11047126 DOI: 10.3389/fnagi.2024.1358992] [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: 12/20/2023] [Accepted: 04/02/2024] [Indexed: 05/01/2024] Open
Abstract
Background The number of people with dementia is soaring. Cognitive reserve has been thought to be associated with dementia risk. It is not clear at which period in the life course and which cognitive reserve proxies contribute to the reduced risk of dementia. Methods By scanning four databases (PubMed, Embase, Web of Science, and MEDLINE) up to Jun 3, 2023, longitudinal studies of life-course cognitive reserve and risk of dementia were found. The HRs and 95% CIs for each study were summarized using random effects models. Subgroup analyses and sensitivity analyses were conducted. Utilizing funnel plots, Begg and Egger tests, publication bias was investigated. Results A total of 27 studies were included, containing 10 in early-life, 10 in middle-life, and 13 in late-life. All studies used validated questionnaires to measure cognitive reserve, and dementia diagnosis followed recognized worldwide guidelines. All included studies were of medium or low risk. Cognitive reserve in early-life (Hazard ratio (HR): 0.82; 95% confidence interval (CI): 0.79-0.86), middle-life (HR: 0.91; 95% CI: 0.84-0.98) and late-life (HR: 0.81; 95% CI: 0.75-0.88) all have protective effects on dementia risk. Multiple sensitivity analyses showed consistent results. Conclusion Dementia risk is reduced by the buildup of cognitive reserves during life-course. Accumulation of proxies for cognitive reserve in early and late life had the greatest effect on dementia risk reduction. Social connection may be an effective approach to lower dementia risk.
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Affiliation(s)
| | | | | | | | - Weijuan Gong
- School of Nursing and School of Public Health, Medical College, Yangzhou University, Yangzhou, China
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Mashinchi GM, McFarland CP, Hall S, Strongin DL, Williams GA, Cotter KA. Handicraft art leisure activities and cognitive reserve. Clin Neuropsychol 2024; 38:683-714. [PMID: 37674299 DOI: 10.1080/13854046.2023.2253993] [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: 05/16/2023] [Accepted: 08/25/2023] [Indexed: 09/08/2023]
Abstract
ObjectiveOlder individuals face a higher likelihood of developing dementia. The rate of cognitive decline resulting from dementia is not equivalent for all, as some patients with dementia are able to function independently longer than others, despite having similar disease burden. The cognitive reserve (CR) theory provides one explanation for the differing rate of decline. CR suggests that there are factors-most notably, educational attainment and occupational attainment-that can protect against the cognitive decline. Although the beneficial effects of these notable CR factors are clear, not all are easily modifiable. Participation in leisure activities may represent a more easily modifiable factor. Some research hints at beneficial effects of leisure activities, although specific leisure activities have not been well examined. The present study examined the relations between handicraft art leisure activities (HALAs) and multiple cognitive domains. MethodArchival WAIS-IV and demographic data for 50 California retirement community residents were examined. ResultsHALA participation accounted for statistically significant variance in working memory performance (R2 = .40, β = .24%) over and above the established CR factors of age, depression, educational attainment, and occupational attainment. In addition, HALA participation was related to a better ability to perform abstract visual information tasks (Block Design subtest, r = .28, p = .05) and non-verbal reasoning tasks (Visual Puzzles subtest, r = .38, p = .008). ConclusionsHALA participation among older adults could contribute to the retention of cognitive function, supporting the role of HALA participation as a CR factor.
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Kobayashi LC, O'Shea BQ, Wixom C, Jones RN, Langa KM, Weir D, Lee J, Wong R, Gross AL. Lifetime occupational skill and later-life cognitive function among older adults in the United States, Mexico, India, and South Africa. Alzheimers Dement 2024; 20:1933-1943. [PMID: 38159252 PMCID: PMC10947921 DOI: 10.1002/alz.13665] [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: 05/18/2023] [Revised: 11/20/2023] [Accepted: 12/03/2023] [Indexed: 01/03/2024]
Abstract
INTRODUCTION We conducted a cross-national comparison of the association between main lifetime occupational skills and later-life cognitive function across four economically and socially distinct countries. METHODS Data were from population-based studies of aging and their Harmonized Cognitive Assessment Protocols (HCAPs) in the US, South Africa, India, and Mexico (N = 10,037; Age range: 50 to 105 years; 2016 to 2020). Main lifetime occupational skill was classified according to the International Standard Classification of Occupations. Weighted, adjusted regression models estimated pooled and country-specific associations between main lifetime occupational skill and later-life general cognitive function in men and women. RESULTS We observed positive gradients between occupational skill and later-life cognitive function for men and women in the US and Mexico, a positive gradient for women but not men in India, and no association for men or women in South Africa. DISCUSSION Main lifetime occupations may be a source of later-life cognitive reserve, with cross-national heterogeneity in this association. HIGHLIGHTS No studies have examined cross-national differences in the association of occupational skill with cognition. We used data from Harmonized Cognitive Assessment Protocols in the US, Mexico, India, and South Africa. The association of occupational skill with cognitive function varies by country and gender.
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Affiliation(s)
- Lindsay C. Kobayashi
- Center for Social Epidemiology and Population HealthDepartment of EpidemiologyUniversity of Michigan School of Public HealthAnn ArborUSA
- Survey Research CenterInstitute for Social ResearchUniversity of MichiganAnn ArborUSA
- MRC/Wits Rural Public Health & Health Transitions Research Unit (Agincourt)University of the WitwatersrandJohannesburgSouth Africa
| | - Brendan Q. O'Shea
- Center for Social Epidemiology and Population HealthDepartment of EpidemiologyUniversity of Michigan School of Public HealthAnn ArborUSA
| | - Caroline Wixom
- Survey Research CenterInstitute for Social ResearchUniversity of MichiganAnn ArborUSA
| | - Richard N. Jones
- Department of Psychiatry and Human BehaviorAlpert Medical SchoolBrown UniversityProvidenceUSA
- Department of NeurologyAlpert Medical SchoolBrown UniversityProvidenceUSA
| | - Kenneth M. Langa
- Survey Research CenterInstitute for Social ResearchUniversity of MichiganAnn ArborUSA
- Department of Internal MedicineSchool of MedicineUniversity of MichiganAnn ArborUSA
- Institute for Healthcare Policy and InnovationUniversity of MichiganAnn ArborUSA
- Veterans Affairs Ann Arbor Center for Clinical Management ResearchAnn ArborMichiganUSA
| | - David Weir
- Survey Research CenterInstitute for Social ResearchUniversity of MichiganAnn ArborUSA
| | - Jinkook Lee
- Center for Economic and Social ResearchUniversity of Southern CaliforniaLos AngelesCaliforniaUSA
- Department of EconomicsUniversity of Southern CaliforniaLos AngelesCaliforniaUSA
| | - Rebeca Wong
- Sealy Center on AgingUniversity of Texas Medical BranchGalvestonTexasUSA
| | - Alden L. Gross
- Department of EpidemiologyJohns Hopkins Bloomberg School of Public HealthBaltimoreUSA
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Rosenau C, Köhler S, Soons LM, Anstey KJ, Brayne C, Brodaty H, Engedal K, Farina FR, Ganguli M, Livingston G, Lyketsos CG, Mangialasche F, Middleton LE, Rikkert MGMO, Peters R, Sachdev PS, Scarmeas N, Salbæk G, van Boxtel MPJ, Deckers K. Umbrella review and Delphi study on modifiable factors for dementia risk reduction. Alzheimers Dement 2024; 20:2223-2239. [PMID: 38159267 PMCID: PMC10984497 DOI: 10.1002/alz.13577] [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: 09/28/2023] [Revised: 11/09/2023] [Accepted: 11/13/2023] [Indexed: 01/03/2024]
Abstract
A 2013 systematic review and Delphi consensus study identified 12 modifiable risk and protective factors for dementia, which were subsequently merged into the "LIfestyle for BRAin health" (LIBRA) score. We systematically evaluated whether LIBRA requires revision based on new evidence. To identify modifiable risk and protective factors suitable for dementia risk reduction, we combined an umbrella review of systematic reviews and meta-analyses with a two-round Delphi consensus study. The review of 608 unique primary studies and opinions of 18 experts prioritized six modifiable factors: hearing impairment, social contact, sleep, life course inequalities, atrial fibrillation, and psychological stress. Based on expert ranking, hearing impairment, social contact, and sleep were considered the most suitable candidates for inclusion in updated dementia risk scores. As such, the current study shows that dementia risk scores need systematic updates based on emerging evidence. Future studies will validate the updated LIBRA score in different cohorts. HIGHLIGHTS: An umbrella review was combined with opinions of 18 dementia experts. Various candidate targets for dementia risk reduction were identified. Experts prioritized hearing impairment, social contact, and sleep. Re-assessment of dementia risk scores is encouraged. Future work should evaluate the predictive validity of updated risk scores.
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Affiliation(s)
- Colin Rosenau
- Alzheimer Centrum LimburgDepartment of Psychiatry and NeuropsychologySchool for Mental Health and Neuroscience (MHeNs)Maastricht UniversityMaastrichtthe Netherlands
| | - Sebastian Köhler
- Alzheimer Centrum LimburgDepartment of Psychiatry and NeuropsychologySchool for Mental Health and Neuroscience (MHeNs)Maastricht UniversityMaastrichtthe Netherlands
| | - Lion M. Soons
- Alzheimer Centrum LimburgDepartment of Psychiatry and NeuropsychologySchool for Mental Health and Neuroscience (MHeNs)Maastricht UniversityMaastrichtthe Netherlands
| | - Kaarin J. Anstey
- School of PsychologyUniversity of New South WalesKensingtonNew South WalesAustralia
- Neuroscience Research Australia (NeuRA)SydneyNew South WalesAustralia
- UNSW Ageing Futures InstituteKensingtonNew South WalesAustralia
| | - Carol Brayne
- Cambridge Public HealthUniversity of CambridgeCambridgeUK
| | - Henry Brodaty
- Centre for Healthy Brain Ageing (CHeBA)Discipline of Psychiatry and Mental HealthSchool of Clinical MedicineUniversity of New South WalesSydneyNew South WalesAustralia
| | - Knut Engedal
- Norwegian National Centre for Ageing and HealthVestfold Hospital TrustTønsbergNorway
| | - Francesca R. Farina
- Feinberg School of MedicineDepartment of Medical Social SciencesNorthwestern UniversityChicagoIllinoisUSA
| | - Mary Ganguli
- Departments of PsychiatryNeurologyand EpidemiologySchool of Medicine and School of Public HealthUniversity of PittsburghPittsburghPennsylvaniaUSA
| | | | - Constantine G. Lyketsos
- Richman Family Precision Medicine Center of Excellence in Alzheimer's DiseaseJohns Hopkins BayviewJohns Hopkins MedicineBaltimoreMarylandUSA
| | - Francesca Mangialasche
- Division of Clinical GeriatricsDepartment of NeurobiologyCare Sciences and SocietyCenter for Alzheimer ResearchKarolinska InstitutetStockholmSweden
- Theme Inflammation and AgingMedical Unit AgingKarolinska University HospitalStockholmSweden
| | - Laura E. Middleton
- Department of Kinesiology and Health SciencesUniversity of WaterlooWaterlooOntarioCanada
- Schlegel‐UW Research Institute for AgingWaterlooOntarioCanada
| | - Marcel G. M. Olde Rikkert
- Department of Geriatric MedicineRadboud University Medical CenterNijmegenthe Netherlands
- Radboudumc Alzheimer CenterDonders Center of Medical NeurosciencesNijmegenthe Netherlands
| | - Ruth Peters
- UNSW Ageing Futures InstituteKensingtonNew South WalesAustralia
- The George Institute for Global HealthNewtownNew South WalesAustralia
- School of Biomedical SciencesUniversity of New South WalesKensingtonNew South WalesAustralia
| | - Perminder S. Sachdev
- Centre for Healthy Brain Ageing (CHeBA)Discipline of Psychiatry and Mental HealthSchool of Clinical MedicineUniversity of New South WalesSydneyNew South WalesAustralia
| | - Nikolaos Scarmeas
- 1st Department of NeurologyAiginition HospitalNational and Kapodistrian University of Athens Medical SchoolAthensGreece
- Department of NeurologyColumbia UniversityNew YorkNew YorkUSA
| | - Geir Salbæk
- Norwegian National Centre for Ageing and HealthVestfold Hospital TrustTønsbergNorway
- Department of Geriatric MedicineOslo University HospitalOsloNorway
- Institute of Clinical MedicineUniversity of OsloOsloNorway
| | - Martin P. J. van Boxtel
- Alzheimer Centrum LimburgDepartment of Psychiatry and NeuropsychologySchool for Mental Health and Neuroscience (MHeNs)Maastricht UniversityMaastrichtthe Netherlands
| | - Kay Deckers
- Alzheimer Centrum LimburgDepartment of Psychiatry and NeuropsychologySchool for Mental Health and Neuroscience (MHeNs)Maastricht UniversityMaastrichtthe Netherlands
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11
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Klimecki OM, Liebscher M, Gaubert M, Hayek D, Zarucha A, Dyrba M, Bartels C, Buerger K, Butryn M, Dechent P, Dobisch L, Ewers M, Fliessbach K, Freiesleben SD, Glanz W, Hetzer S, Janowitz D, Kilimann I, Kleineidam L, Laske C, Maier F, Munk MH, Perneczky R, Peters O, Priller J, Rauchmann BS, Roy N, Scheffler K, Schneider A, Spruth EJ, Spottke A, Teipel SJ, Wiltfang J, Wolfsgruber S, Yakupov R, Düzel E, Jessen F, Wagner M, Roeske S, Wirth M. Long-term environmental enrichment is associated with better fornix microstructure in older adults. Front Aging Neurosci 2023; 15:1170879. [PMID: 37711996 PMCID: PMC10498282 DOI: 10.3389/fnagi.2023.1170879] [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: 02/21/2023] [Accepted: 08/04/2023] [Indexed: 09/16/2023] Open
Abstract
Background Sustained environmental enrichment (EE) through a variety of leisure activities may decrease the risk of developing Alzheimer's disease. This cross-sectional cohort study investigated the association between long-term EE in young adulthood through middle life and microstructure of fiber tracts associated with the memory system in older adults. Methods N = 201 cognitively unimpaired participants (≥ 60 years of age) from the DZNE-Longitudinal Cognitive Impairment and Dementia Study (DELCODE) baseline cohort were included. Two groups of participants with higher (n = 104) or lower (n = 97) long-term EE were identified, using the self-reported frequency of diverse physical, intellectual, and social leisure activities between the ages 13 to 65. White matter (WM) microstructure was measured by fractional anisotropy (FA) and mean diffusivity (MD) in the fornix, uncinate fasciculus, and parahippocampal cingulum using diffusion tensor imaging. Long-term EE groups (lower/higher) were compared with adjustment for potential confounders, such as education, crystallized intelligence, and socio-economic status. Results Reported participation in higher long-term EE was associated with greater fornix microstructure, as indicated by higher FA (standardized β = 0.117, p = 0.033) and lower MD (β = -0.147, p = 0.015). Greater fornix microstructure was indirectly associated (FA: unstandardized B = 0.619, p = 0.038; MD: B = -0.035, p = 0.026) with better memory function through higher long-term EE. No significant effects were found for the other WM tracts. Conclusion Our findings suggest that sustained participation in a greater variety of leisure activities relates to preserved WM microstructure in the memory system in older adults. This could be facilitated by the multimodal stimulation associated with the engagement in a physically, intellectually, and socially enriched lifestyle. Longitudinal studies will be needed to support this assumption.
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Affiliation(s)
- Olga M Klimecki
- German Center for Neurodegenerative Diseases (DZNE), Dresden, Germany
| | - Maxie Liebscher
- German Center for Neurodegenerative Diseases (DZNE), Dresden, Germany
| | - Malo Gaubert
- German Center for Neurodegenerative Diseases (DZNE), Dresden, Germany
- Department of Neuroradiology, Rennes University Hospital Centre Hospitalier Universitaire (CHU), Rennes, France
| | - Dayana Hayek
- German Center for Neurodegenerative Diseases (DZNE), Magdeburg, Germany
| | - Alexis Zarucha
- German Center for Neurodegenerative Diseases (DZNE), Dresden, Germany
| | - Martin Dyrba
- German Center for Neurodegenerative Diseases (DZNE), Rostock, Germany
| | - Claudia Bartels
- Department of Psychiatry and Psychotherapy, University Medical Center Goettingen, University of Goettingen, Göttingen, Germany
| | - Katharina Buerger
- German Center for Neurodegenerative Diseases (DZNE), Munich, Germany
- Institute for Stroke and Dementia Research, University Hospital, Ludwig-Maximilians-Universität (LMU) Munich, Munich, Germany
| | - Michaela Butryn
- German Center for Neurodegenerative Diseases (DZNE), Magdeburg, Germany
| | - Peter Dechent
- Magnetic Resonance (MR)-Research in Neurosciences, Department of Cognitive Neurology, Georg-August-University Goettingen, Göttingen, Germany
| | - Laura Dobisch
- German Center for Neurodegenerative Diseases (DZNE), Magdeburg, Germany
| | - Michael Ewers
- German Center for Neurodegenerative Diseases (DZNE), Munich, Germany
- Institute for Stroke and Dementia Research, University Hospital, Ludwig-Maximilians-Universität (LMU) Munich, Munich, Germany
| | - Klaus Fliessbach
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
- Department of Neurodegenerative Disease and Geriatric Psychiatry, University of Bonn Medical Center, Bonn, Germany
| | - Silka Dawn Freiesleben
- Department of Psychiatry and Neurosciences, Charité-Universitätsmedizin Berlin, Berlin, Germany
- German Center for Neurodegenerative Diseases (DZNE), Berlin, Germany
| | - Wenzel Glanz
- German Center for Neurodegenerative Diseases (DZNE), Magdeburg, Germany
| | - Stefan Hetzer
- Berlin Center for Advanced Neuroimaging, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Daniel Janowitz
- Institute for Stroke and Dementia Research, University Hospital, Ludwig-Maximilians-Universität (LMU) Munich, Munich, Germany
| | - Ingo Kilimann
- German Center for Neurodegenerative Diseases (DZNE), Rostock, Germany
- Department of Psychosomatic Medicine, Rostock University Medical Center, Rostock, Germany
| | - Luca Kleineidam
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
- Department of Neurodegenerative Disease and Geriatric Psychiatry, University of Bonn Medical Center, Bonn, Germany
| | - Christoph Laske
- German Center for Neurodegenerative Diseases (DZNE), Tübingen, Germany
- Section for Dementia Research, Department of Psychiatry and Psychotherapy, Hertie Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany
| | - Franziska Maier
- Department of Psychiatry, Medical Faculty, University of Cologne, Cologne, Germany
| | - Matthias H Munk
- German Center for Neurodegenerative Diseases (DZNE), Tübingen, Germany
- Department of Psychiatry and Psychotherapy, University of Tübingen, Tübingen, Germany
| | - Robert Perneczky
- German Center for Neurodegenerative Diseases (DZNE), Munich, Germany
- Department of Psychiatry and Psychotherapy, University Hospital, Ludwig-Maximilians-Universität (LMU) Munich, Munich, Germany
- Munich Cluster for Systems Neurology (SyNergy), Munich, Germany
- Ageing Epidemiology Research Unit (AGE), School of Public Health, Imperial College London, London, United Kingdom
| | - Oliver Peters
- Department of Psychiatry and Neurosciences, Charité-Universitätsmedizin Berlin, Berlin, Germany
- German Center for Neurodegenerative Diseases (DZNE), Berlin, Germany
| | - Josef Priller
- German Center for Neurodegenerative Diseases (DZNE), Berlin, Germany
- Department of Psychiatry and Psychotherapy, Charité-Universitätsmedizin Berlin, Berlin, Germany
- Department of Psychiatry and Psychotherapy, School of Medicine, Technical University of Munich, Munich, Germany
- University of Edinburgh and United Kingdom Dementia Research Institute (UK DRI), Edinburgh, United Kingdom
| | - Boris-Stephan Rauchmann
- Department of Psychiatry and Psychotherapy, University Hospital, Ludwig-Maximilians-Universität (LMU) Munich, Munich, Germany
| | - Nina Roy
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
| | - Klaus Scheffler
- Department for Biomedical Magnetic Resonance, University of Tübingen, Tübingen, Germany
| | - Anja Schneider
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
- Department of Neurodegenerative Disease and Geriatric Psychiatry, University of Bonn Medical Center, Bonn, Germany
| | - Eike Jakob Spruth
- Department of Psychiatry and Neurosciences, Charité-Universitätsmedizin Berlin, Berlin, Germany
- German Center for Neurodegenerative Diseases (DZNE), Berlin, Germany
| | - Annika Spottke
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
- Department of Neurology, University of Bonn, Bonn, Germany
| | - Stefan J Teipel
- German Center for Neurodegenerative Diseases (DZNE), Rostock, Germany
- Department of Psychosomatic Medicine, Rostock University Medical Center, Rostock, Germany
| | - Jens Wiltfang
- Department of Psychiatry and Psychotherapy, University Medical Center Goettingen, University of Goettingen, Göttingen, Germany
- German Center for Neurodegenerative Diseases (DZNE), Göttingen, Germany
- Neurosciences and Signaling Group, Department of Medical Sciences, Institute of Biomedicine (iBiMED), University of Aveiro, Aveiro, Portugal
| | - Steffen Wolfsgruber
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
- Department of Neurodegenerative Disease and Geriatric Psychiatry, University of Bonn Medical Center, Bonn, Germany
| | - Renat Yakupov
- German Center for Neurodegenerative Diseases (DZNE), Magdeburg, Germany
| | - Emrah Düzel
- German Center for Neurodegenerative Diseases (DZNE), Magdeburg, Germany
- Institute of Cognitive Neurology and Dementia Research (IKND), Otto-von-Guericke University, Magdeburg, Germany
| | - Frank Jessen
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
- Department of Psychiatry, Medical Faculty, University of Cologne, Cologne, Germany
- Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases, University of Cologne, Cologne, Germany
| | - Michael Wagner
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
- Department of Neurodegenerative Disease and Geriatric Psychiatry, University of Bonn Medical Center, Bonn, Germany
| | - Sandra Roeske
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
| | - Miranka Wirth
- German Center for Neurodegenerative Diseases (DZNE), Dresden, Germany
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12
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Ritchie CS, Kotwal AA. Loneliness and Social Isolation in Palliative Care: A Call to Action. J Palliat Med 2023; 26:1032-1034. [PMID: 37579234 PMCID: PMC11079500 DOI: 10.1089/jpm.2023.0425] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/16/2023] Open
Affiliation(s)
- Christine S. Ritchie
- Massachusetts General Hospital Division of Palliative Care and Geriatric Medicine and Harvard Medical School, Boston, Massachusetts, USA
- The Mongan Institute Center for Aging and Serious Illness, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Ashwin A. Kotwal
- Division of Geriatrics, University of California, San Francisco, California, USA
- Geriatrics, Palliative, and Extended Care Service Line, San Francisco Veterans Affairs, San Francisco, California, USA
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13
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Kjelvik G, Selbæk G, Rokstad AMM. Knowledge and motivation to adopt recommended health behaviours to reduce dementia risk among the elderly in Norway: a qualitative study. Public Health 2023; 221:60-65. [PMID: 37406451 DOI: 10.1016/j.puhe.2023.06.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 05/16/2023] [Accepted: 06/05/2023] [Indexed: 07/07/2023]
Abstract
OBJECTIVES Dementia is a major healthcare challenge; however, there is evidence that modifiable risk factors may contribute to reduce dementia risk. The aim of the study was to explore the knowledge and motivation for adopting recommended health behaviours among older adults in Norway. STUDY DESIGN The study has a qualitative, descriptive design. METHODS Individual interviews were used for data collection. The study population comprised 15 participants, five men and 10 women, aged ≥73 years, recruited from a region in the centre of Norway. Interviews were analysed according to qualitative content analysis. RESULTS Three categories were identified and presented as the main findings, as follows: (1) sufficient knowledge about risk reduction for dementia, including the media as the main source of information; (2) current prevention activities and motivation for risk reduction, including physical, social and cognitive activities and a healthy diet; and (3) motivation for prevention of dementia from a life-course perspective, including experience of health problems, desire to live independently and limited awareness of dementia risk factors in midlife. CONCLUSIONS To tailor information about the modifiable risk factors of dementia and develop preventive interventions, knowledge about motivating factors is essential. Promotion of healthy ageing is required in addition to addressing the fear of future illness and dependency.
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Affiliation(s)
- G Kjelvik
- The Norwegian National Centre for Ageing and Health, Vestfold Hospital Trust, Tønsberg, Norway
| | - G Selbæk
- The Norwegian National Centre for Ageing and Health, Vestfold Hospital Trust, Tønsberg, Norway; Institute of Clinical Medicine, University of Oslo, Oslo, Norway; Department of Geriatric Medicine, Oslo University Hospital, Oslo, Norway
| | - A M M Rokstad
- The Norwegian National Centre for Ageing and Health, Vestfold Hospital Trust, Tønsberg, Norway; Faculty of Health Sciences and Social Care, Molde University College, Molde, Norway.
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14
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Brett BL, Aggarwal NT, Chandran A, Kerr ZY, Walton SR, DeFreese JD, Guskiewicz KM, Echemendia RJ, Meehan WP, McCrea MA, Mannix R. Incorporation of concussion history as part of the LIfestyle for BRAin Health (LIBRA) modifiable factors risk score and associations with cognition in older former National Football League players. Alzheimers Dement 2023; 19:3087-3097. [PMID: 36708229 PMCID: PMC10374874 DOI: 10.1002/alz.12929] [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: 08/14/2022] [Revised: 11/23/2022] [Accepted: 12/19/2022] [Indexed: 01/29/2023]
Abstract
OBJECTIVE Investigate associations between the LIfestyle for BRAin Health (LIBRA) risk score with odds of mild cognitive impairment (MCI) diagnosis and cognitive function, incorporating concussion history. METHODS Former National Football League (NFL) players (N = 1050; mean age = 64.8 ± 9.0-years) completed initial testing for integration of concussion history into LIBRA scores (i.e., modified-LIBRA) and completed the Brief Test of Adult Cognition by Telephone (BTACT). Modified-LIBRA score (including concussion history) associations with odds of MCI and cognitive dysfunction were assessed via logistic and linear regression. RESULTS The highest quartile LIBRA scores were six times more likely to have a diagnosis of MCI compared to the lowest quartile (OR = 6.27[3.61, 10.91], p < 0.001). Modified-LIBRA scores significantly improved model fit for odds of MCI above original LIBRA scores (χ2 (1) = 7.76, p = 0.005) and accounted for a greater fraction of variance in executive function (ΔR2 = 0.02, p = 0.003) and episodic memory (ΔR2 = 0.02, p = 0.002). CONCLUSIONS Modified-LIBRA score, incorporating concussion history, may help monitoring risk status in former contact sport athletes, by targeting modifiable, lifestyle-related risk factors.
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Affiliation(s)
- Benjamin L. Brett
- Department of Neurosurgery, Medical College of Wisconsin, Wauwatosa, WI
| | | | - Avinash Chandran
- Datalys Center for Sports Injury Research and Prevention, Indianapolis, IN
- Department of Exercise and Sport Science, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Zachary Yukio Kerr
- Department of Exercise and Sport Science, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Samuel R. Walton
- Department of Physical Medicine and Rehabilitation, Virginia Commonwealth University School of Medicine, Richmond, VA
| | - J. D. DeFreese
- Department of Exercise and Sport Science, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Kevin M. Guskiewicz
- Department of Exercise and Sport Science, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | | | - William P. Meehan
- Boston Children’s Hospital, Boston, MA
- Department of Pediatrics and Orthopedics, Harvard Medical School, Boston, MA
| | - Michael A. McCrea
- Department of Neurosurgery, Medical College of Wisconsin, Wauwatosa, WI
| | - Rebekah Mannix
- Boston Children’s Hospital, Boston, MA
- Department of Pediatrics and Emergency Medicine, Harvard Medical School, Boston, MA
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15
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Podolski OS, Whitfield T, Schaaf L, Cornaro C, Köbe T, Koch S, Wirth M. The Impact of Dance Movement Interventions on Psychological Health in Older Adults without Dementia: A Systematic Review and Meta-Analysis. Brain Sci 2023; 13:981. [PMID: 37508913 PMCID: PMC10377702 DOI: 10.3390/brainsci13070981] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 06/13/2023] [Accepted: 06/16/2023] [Indexed: 07/30/2023] Open
Abstract
BACKGROUND Lifestyle-based multimodal interventions that integrate physical, sensory, cognitive and social enrichment are suggested to promote healthy mental aging and resilience against aging and Alzheimer's disease (AD). OBJECTIVES This meta-analysis examined the efficacy of dance movement interventions (DMI) as an integrated mind-body activity on outcomes of psychological health in older adults. METHODS Pre-registration was carried out with PROSPERO (CRD42021265112). PubMed, Web of Science and PsycINFO were searched for randomized controlled trials (RCT) evaluating the effects of DMI (>4 weeks' duration) compared to comparators on measures of psychological health (primary outcome) and cognitive function (additional outcome) among older adults without dementia (aged ≥55). Data of 14 primary RCT (n = 983, n-DMI = 494, n-control = 489) were synthesized using a random effects meta-analysis with robust variance estimation. RESULTS DMI had a small positive effect on overall psychological health (g = 0.30; 95% confidence interval [CI]: 0.06, 0.53; p = 0.02, I2= 65.04) compared to control conditions. Small effects of DMI on positive and negative psychological domains as well as quality of life were not statistically significant. DMI had a medium positive effect on general cognitive function (g = 0.50; 95% CI: 0.12, 0.89, p = 0.02, I2= 79.61) over comparators. None of the primary intervention studies evaluated measures of neuroplasticity. CONCLUSIONS We found that DMI was effective in promoting mental health amongst older adults without dementia, suggesting that the multimodal enrichment tool is a potential strategy for health promotion and prevention of AD. High-quality intervention studies are needed to expand evidence on DMI-induced changes in specific psychological domains and identify underlying neurophysiological correlates.
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Affiliation(s)
| | - Tim Whitfield
- Division of Psychiatry, University College London, London W1T 7NF, UK
| | - Leah Schaaf
- German Center for Neurodegenerative Diseases (DZNE), 01307 Dresden, Germany
| | - Clara Cornaro
- Research Institute for Creative Arts Therapies (RIArT), Alanus University of Arts and Social Sciences, 53347 Alfter, Germany
- Faculty of Therapy Sciences, SRH University Heidelberg, 69123 Heidelberg, Germany
| | - Theresa Köbe
- German Center for Neurodegenerative Diseases (DZNE), 01307 Dresden, Germany
| | - Sabine Koch
- Research Institute for Creative Arts Therapies (RIArT), Alanus University of Arts and Social Sciences, 53347 Alfter, Germany
- Faculty of Therapy Sciences, SRH University Heidelberg, 69123 Heidelberg, Germany
- Faculty of Fine Arts and Music, CAMTRU, University of Melbourne, Melbourne, VIC 3006, Australia
| | - Miranka Wirth
- German Center for Neurodegenerative Diseases (DZNE), 01307 Dresden, Germany
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16
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Sommerlad A, Kivimäki M, Larson EB, Röhr S, Shirai K, Singh-Manoux A, Livingston G. Social participation and risk of developing dementia. NATURE AGING 2023; 3:532-545. [PMID: 37202513 DOI: 10.1038/s43587-023-00387-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 02/22/2023] [Indexed: 05/20/2023]
Abstract
The increasing number of people with dementia globally illustrates the urgent need to reduce dementia's scale and impact. Lifetime social participation may affect dementia risk by increasing cognitive reserve, and through brain maintenance by reducing stress and improving cerebrovascular health. It may therefore have important implications for individual behavior and public health policy aimed at reducing dementia burden. Observational study evidence indicates that greater social participation in midlife and late life is associated with 30-50% lower subsequent dementia risk, although some of this may not be causal. Social participation interventions have led to improved cognition but, partly due to short follow-up and small numbers of participants, no reduction in risk of dementia. We summarize the evidence linking social participation with dementia, discuss potential mechanisms by which social participation is likely to reduce and mitigate the impact of neuropathology in the brain, and consider the implications for future clinical and policy dementia prevention interventions.
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Affiliation(s)
- Andrew Sommerlad
- Division of Psychiatry, University College London, London, UK.
- Camden and Islington NHS Foundation Trust, London, UK.
| | - Mika Kivimäki
- Division of Psychiatry, University College London, London, UK
- Department of Public Health, University of Helsinki, Helsinki, Finland
| | - Eric B Larson
- University of Washington Schools of Medicine and Public Health, Seattle, WA, USA
| | - Susanne Röhr
- School of Psychology, Massey University, Manawatu, New Zealand
- Global Brain Health Institute (GBHI), Trinity College Dublin, Dublin, Ireland
- Institute of Social Medicine, Occupational Health and Public Health (ISAP), Medical Faculty, University of Leipzig, Leipzig, Germany
| | - Kokoro Shirai
- Department of Social Medicine, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Archana Singh-Manoux
- Division of Psychiatry, University College London, London, UK
- Université Paris Cité, Inserm, U1153, Paris, France
| | - Gill Livingston
- Division of Psychiatry, University College London, London, UK
- Camden and Islington NHS Foundation Trust, London, UK
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17
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Li Y, Wang X, Guo L, Zhu L, Shi J, Wang W, Lu C. Eight-Year Trajectories of Late-Life Loneliness and Incident Dementia: A Nationally Representative Cohort Study. Am J Geriatr Psychiatry 2022:S1064-7481(22)00575-9. [PMID: 36549995 DOI: 10.1016/j.jagp.2022.12.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 11/15/2022] [Accepted: 12/01/2022] [Indexed: 12/12/2022]
Abstract
OBJECTIVE Some older adults with loneliness might have transient loneliness, followed by full remission, while others might have persistent loneliness. Such different courses might differ in predicting the risk of dementia, but most previous studies assessed short-term loneliness at a single time point, ignoring the long-term changes of loneliness. This study aimed to explore the association between 8-year trajectories of late-life loneliness and incident dementia. METHODS Data were from the English Longitudinal Study of Ageing (waves 2-9). This study included 6,722 older adults measured for loneliness greater than or equal to three times from wave 2 (2004-2005) to wave 6 (2012-2013) and free from dementia in wave 6. Loneliness was assessed using the short 1980 version of the University of California, Los Angeles Loneliness Scale. Group-based trajectory modeling was used to explore loneliness trajectories during waves 2-6. Cox proportional hazard models were used to investigate the association of loneliness trajectories with incident dementia during waves 6-9. RESULTS Five distinct loneliness trajectories were identified: long-term low, persistently decreasing, persistently increasing, long-term moderate, and long-term high. Compared with long-term low loneliness, the HRs (95% confidence intervals) for persistently decreasing, persistently increasing, long-term moderate, and long-term high loneliness were 1.29 (0.83-2.00), 1.55 (1.04-2.31), 1.56 (1.03-2.38), and 3.35 (1.89-5.91), respectively. CONCLUSION The elderly show distinct patterns of loneliness over time, which cannot be captured by a single assessment of loneliness. The elderly with long-term loneliness and persistently increasing loneliness might be the high-risk group for dementia. Further studies are needed to determine whether reducing loneliness can prevent dementia.
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Affiliation(s)
- Yanzhi Li
- Department of Medical Statistics and Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, China; Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Sun Yat-sen University, Guangzhou, China
| | - Xiaojie Wang
- Department of Neurology, Shenzhen Shekou People's Hospital, Shenzhen, China
| | - Lan Guo
- Department of Medical Statistics and Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, China; Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Sun Yat-sen University, Guangzhou, China
| | - Liwan Zhu
- Department of Medical Statistics and Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, China; Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Sun Yat-sen University, Guangzhou, China
| | - Jingman Shi
- Department of Medical Statistics and Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, China; Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Sun Yat-sen University, Guangzhou, China
| | - Wanxin Wang
- Department of Medical Statistics and Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, China; Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Sun Yat-sen University, Guangzhou, China.
| | - Ciyong Lu
- Department of Medical Statistics and Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, China; Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Sun Yat-sen University, Guangzhou, China
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