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Wills O, Probst Y. Towards new perspectives: A scoping review and meta-synthesis to redefine brain health for multiple sclerosis. Eur J Neurol 2024; 31:e16210. [PMID: 38226556 PMCID: PMC11235954 DOI: 10.1111/ene.16210] [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: 10/20/2023] [Revised: 12/03/2023] [Accepted: 12/28/2023] [Indexed: 01/17/2024]
Abstract
BACKGROUND AND PURPOSE Research promoting the health of the brain has increased exponentially over the last decade. The importance of 'brain health' for multiple sclerosis (MS), as one example, is a high priority. However, as research into the concept increases, so does varied use of the term. METHODS A scoping review, guided by the methodological framework of the Joanna Briggs Institute, was conducted to collate the evidence relating to brain health for MS. A comprehensive literature search incorporated six search strategies to retrieve both scientific and grey literature sources. All evidence sources were qualitatively charted and synthesized (meta-synthesis) according to their definition of brain health used, outcome measures and brain-healthy lifestyle elements. RESULTS Seventy evidence sources (34 peer reviewed, 36 grey literature) were eligible for inclusion. Of these, just over half (n = 40, 57%) provided a definition of brain health. The most common definition alluded to the biomedical model of neurological reserve (n = 22, 55%), a self-remodelling theory described to retain optimal brain function. Twenty-nine outcome measures of brain health were identified, the most frequent being magnetic resonance imaging metrics (n = 25, 83%). Physical activity was the most prevalent brain-healthy lifestyle element (n = 44), followed by avoidance of smoking (n = 26) and diet (n = 24). CONCLUSIONS Brain health should be considered a primary target for optimal disease and lifestyle management across the MS disease course. A working definition reflecting a shift from a medical lens towards broader biopsychosocial contexts that may influence brain health for people living with MS is proposed.
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Affiliation(s)
- Olivia Wills
- School of Medical, Indigenous and Health SciencesUniversity of WollongongWollongongNew South WalesAustralia
| | - Yasmine Probst
- School of Medical, Indigenous and Health SciencesUniversity of WollongongWollongongNew South WalesAustralia
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Saywell I, Foreman L, Child B, Phillips-Hughes AL, Collins-Praino L, Baetu I. Influence of cognitive reserve on cognitive and motor function in α-synucleinopathies: A systematic review and multilevel meta-analysis. Neurosci Biobehav Rev 2024; 161:105672. [PMID: 38608829 DOI: 10.1016/j.neubiorev.2024.105672] [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: 01/14/2024] [Revised: 03/26/2024] [Accepted: 04/08/2024] [Indexed: 04/14/2024]
Abstract
Cognitive reserve has shown promise as a justification for neuropathologically unexplainable clinical outcomes in Alzheimer's disease. Recent evidence suggests this effect may be replicated in conditions like Parkinson's disease, dementia with Lewy bodies, and multiple system atrophy. However, the relationships between cognitive reserve and different cognitive abilities, as well as motor outcomes, are still poorly understood in these conditions. Additionally, it is unclear whether the reported effects are confounded by medication. This review analysed studies investigating the relationship between cognitive reserve and clinical outcomes in these α-synucleinopathy cohorts, identified from MEDLINE, Scopus, psycINFO, CINAHL, and Web of Science. 85 records, containing 176 cognition and 31 motor function effect sizes, were pooled using multilevel meta-analysis. There was a significant, positive association between higher cognitive reserve and both better cognition and motor function. Cognition effect sizes differed by disease subtype, cognitive reserve measure, and outcome type; however, no moderators significantly impacted motor function. Review findings highlight the clinical implications of cognitive reserve and importance of engaging in reserve-building behaviours.
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Affiliation(s)
- Isaac Saywell
- School of Psychology, University of Adelaide, Adelaide 5005, Australia.
| | - Lauren Foreman
- School of Psychology, University of Adelaide, Adelaide 5005, Australia
| | - Brittany Child
- School of Psychology, University of Adelaide, Adelaide 5005, Australia
| | | | | | - Irina Baetu
- School of Psychology, University of Adelaide, Adelaide 5005, Australia.
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Giannì J, Crepaldi M, Fusi G, Colombi F, Brugnera A, Greco A, Compare A, Rusconi ML. A State-of-the-Art Review on the Role of Cognitive and Motor Reserve on Quality of Life: A Focus on Cardiovascular Patients in a Lifespan Perspective. Geriatrics (Basel) 2024; 9:59. [PMID: 38804316 PMCID: PMC11130798 DOI: 10.3390/geriatrics9030059] [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: 03/29/2024] [Revised: 05/06/2024] [Accepted: 05/07/2024] [Indexed: 05/29/2024] Open
Abstract
Cardiovascular diseases (CVDs) reflect a huge and diversified condition that influences patient quality of life (QoL) both in the physical and mental aspects, especially in older adults who often present comorbidities and may be affected by cognitive decline. The concept of cognitive reserve (CR), which is built through life course experiences, has widely been considered a protective factor against cognitive decline, while the results of QoL in the field of CVDs are still controversial. In particular, there is a lack of evidence that explicitly explores the effects of CR on the QoL in CVD cases since studies have considered only single CR proxies (e.g., education) or specific cardiovascular conditions. Moreover, none of them have considered the motor reserve (MR), another recent concept that considers the amount of physical activity carried out during a lifespan. Its potential role in preventing age-related diseases has been observed, but more clarification is needed given the importance of the physical component in CVDs. The present state-of-the-art review aims to (i) examine how the literature conceives CR and its proxies in CVDs relating to QoL and (ii) integrate the concept of MR in this framework. Implications for clinical practice will also be discussed.
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Affiliation(s)
| | | | | | | | | | | | | | - Maria Luisa Rusconi
- Department of Human and Social Sciences, University of Bergamo, 24129 Bergamo, Italy; (J.G.); (M.C.); (G.F.); (F.C.); (A.B.); (A.G.); (A.C.)
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4
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Li Y, Yu R, Si H, Liu Q, Bian Y, Yu J, Wang C. Effects of cognitive reserve on cognitive frailty among older adults: A population-based prospective cohort study. Geriatr Gerontol Int 2024; 24:398-403. [PMID: 38475988 DOI: 10.1111/ggi.14855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Revised: 01/12/2024] [Accepted: 02/24/2024] [Indexed: 03/14/2024]
Abstract
AIM We investigated the effect of lifespan cognitive reserve and its components on cognitive frailty among older adults. METHODS A total of 4922 participants aged ≥65 years were recruited in 2008 and were followed up in 2011 from the Chinese Longitudinal Healthy Longevity Survey. Cognitive frailty was determined through the simultaneous presence of physical frailty (pre-frailty or frailty) and mild cognitive impairment, excluding concurrent dementia. The assessment of physical frailty and mild cognitive impairment was based on the Fatigue, Resistence, Ambulation, Illness, Loss of weight (FRAIL) (Fatigue, Resistence, Ambulation, Illness, Loss) and Mini-Mental State Examination scale, respectively. The lifespan cognitive reserve consisted of education attainment, occupational complexity and later-life leisure activities. We used logistic regression models to estimate the risk of cognitive frailty associated with the lifespan cognitive reserve and its components. RESULTS A higher level of lifespan cognitive reserve, higher educational attainment or leisure activities engagement, but not occupational complexity, were associated with lower risk of incident cognitive frailty. Furthermore, cognitive, social and physical activities were associated with lower risk of incident cognitive frailty. CONCLUSION Cognitive reserve, particularly educational attainment and leisure activities, can protect from cognitive frailty. This implicates that individuals should accumulate cognitive reserve in their lifespan, and older adults should actively participate in leisure activities to prevent cognitive frailty. Geriatr Gerontol Int 2024; 24: 398-403.
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Affiliation(s)
- Yanyan Li
- Department of Basic Nursing, School of Nursing, Peking University, Beijing, China
| | - Ruby Yu
- Department of Medicine and Therapeutics, Jockey Club Institute of Ageing, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Huaxin Si
- Department of Basic Nursing, School of Nursing, Peking University, Beijing, China
| | - Qinqin Liu
- Department of Basic Nursing, School of Nursing, Peking University, Beijing, China
| | - Yanhui Bian
- Department of Basic Nursing, School of Nursing, Peking University, Beijing, China
| | - Jiaqi Yu
- Department of Basic Nursing, School of Nursing, Peking University, Beijing, China
| | - Cuili Wang
- Department of Basic Nursing, School of Nursing, Peking University, Beijing, China
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Jiménez-Morales RM, Broche-Pérez Y, Macías-Delgado Y, Sebrango C, Díaz-Díaz S, Castiñeira-Rodriguez R, Pérez-González FJ, Forn C. Cognitive rehabilitation program in patients with multiple sclerosis: A pilot study. Neurologia 2024; 39:135-146. [PMID: 38460992 DOI: 10.1016/j.nrleng.2024.01.001] [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: 12/14/2020] [Accepted: 03/24/2021] [Indexed: 03/11/2024] Open
Abstract
INTRODUCTION In recent years, there has been an increase of studies dedicated to cognitive rehabilitation in patients with multiple sclerosis (MS); however, few of these analyze the impact on such variables as cognitive reserve. The study aims to explore the effects of a cognitive rehabilitation program comprising a combination of cognitive and physical exercises, as well as group sessions to improve cognitive performance, emotional state, and cognitive reserve index. METHOD Fifty patients with MS were subdivided into 2 groups: the control group, which performed aerobic exercise (n=25), and the experimental group (n=25), which participated in the integrated cognitive rehabilitation program (ICRP). All participants were evaluated 3 times (baseline, post-treatment, and long-term) with the Brief Repeatable Battery of Neuropsychological Tests, Cognitive Reserve Scale, Beck Depression Inventory, and a scale evaluating trait and state anxiety. RESULTS Compared with the control group, patients in the experimental group showed improvements in cognitive function, with significant changes in measures of information processing speed, attention, memory, cognitive reserve index, and long-term mood. CONCLUSIONS The ICRP was effective in improving cognitive and emotional function in MS, and increased the cognitive reserve index.
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Affiliation(s)
- R M Jiménez-Morales
- Physical Medicine and Rehabilitation Department, Rehabilitation Hospital Dr. Faustino Pérez Hernández, Sancti Spíritus, Cuba; Center for Studies in Educational Sciences, José Martí University of Sancti Spíritus, Cuba.
| | - Y Broche-Pérez
- Psychology Department, Universidad Central "Marta Abreu" de Las Villas, Cuba
| | - Y Macías-Delgado
- Psychology Department, University of Medical Sciences Dr. Fustino Pérez Hernández, de Sancti Spíritus, Cuba
| | - C Sebrango
- Center for Studies Energy and Industrial, José Martí University of Sancti Spíritus, Cuba
| | - S Díaz-Díaz
- Physical Medicine and Rehabilitation Department, Rehabilitation Hospital Dr. Faustino Pérez Hernández, Sancti Spíritus, Cuba
| | - R Castiñeira-Rodriguez
- Physical Medicine and Rehabilitation Department, Rehabilitation Hospital Dr. Faustino Pérez Hernández, Sancti Spíritus, Cuba
| | - F J Pérez-González
- Center for Studies in Educational Sciences, José Martí University of Sancti Spíritus, Cuba
| | - C Forn
- Psicología Bàsica, Clínica i Psicobiología Depatment, Universitat Jaume I, Spain
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Schwartz CE, Borowiec K, Rapkin BD. Reserve-building as a buffer for depression among individuals living with disability: a longitudinal study of current activities related to brain health. Front Psychol 2024; 15:1330437. [PMID: 38455115 PMCID: PMC10919219 DOI: 10.3389/fpsyg.2024.1330437] [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: 11/08/2023] [Accepted: 01/19/2024] [Indexed: 03/09/2024] Open
Abstract
Aims This study examined whether reserve-building activities are associated with attenuated reported depression among people who were disabled from work due to a medical condition as compared to employed, retired, and unemployed participants. Methods This secondary analysis included 771 individuals who provided data at three time points: baseline (late Spring 2020), follow-up 1 (Spring 2021), and follow-up 2 (Fall 2021). The DeltaQuest Reserve-Building Measure assessed current activities related to brain health. An analysis of variance and Pearson correlation coefficients assessed group differences in reserve-building activity scores. Classification and regression tree (CART) modeling investigated factors associated with higher and lower reported depression by employment group. The random effects (RE) models tested two buffering hypotheses: (1) comparing all groups to the employed group and (2) examining within-group effects. Results Engaging in outdoor activities, exercise, and religious/spiritual activities was associated with reduced depression over time in the overall sample. While disabled participants endorsed lower levels of being Active in the World, Outdoor activities, and Exercise and higher levels of Inner Life and Passive Media Consumption than the other employment groups, more reserve-building activities distinguished depression levels in the disabled group's CART models compared to the others. Among the disabled, unemployed, and retired participants, engaging in any reserve-building activities was also associated with lower depression scores, which was distinct from the employed participants. In the RE models that used the employed group as the reference category, only the disabled group's level of depression was buffered by engaging in creative activities. In the within-group RE models, the disabled group's engagement in Religious/Spiritual, Outdoors, and Games was associated with substantially reduced within-group depression, which was different from the other employment groups. In contrast, reserve-building activities were not implicated at all as buffers for employed participants. Conclusion This study revealed a beneficial effect of reserve-building activities on buffering depression over time during the COVID-19 pandemic, particularly for disabled people. It documented that even if such individuals engaged in lesser amounts of such activities as compared to other employment groups, the buffering effect was substantial. Given the low-cost and accessible nature of reserve-building activities, it would be worthwhile to encourage such activities for disabled individuals.
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Affiliation(s)
- Carolyn E. Schwartz
- DeltaQuest Foundation, Inc., Concord, MA, United States
- Departments of Medicine and Orthopaedic Surgery, Tufts University Medical School, Boston, MA, United States
| | - Katrina Borowiec
- DeltaQuest Foundation, Inc., Concord, MA, United States
- Department of Measurement, Evaluation, Statistics, and Assessment, Boston College Lynch School of Education and Human Development, Chestnut Hill, MA, United States
| | - Bruce D. Rapkin
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY, United States
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Lewis NA, Yoneda T, Melis RJF, Mroczek DK, Hofer SM, Muniz-Terrera G. Availability of Cognitive Resources in Early Life Predicts Transitions Between Cognitive States in Middle and Older Adults From Europe. Innov Aging 2023; 7:igad124. [PMID: 38034934 PMCID: PMC10682867 DOI: 10.1093/geroni/igad124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Indexed: 12/02/2023] Open
Abstract
Background and Objectives The existing literature highlights the importance of reading books in middle-to-older adulthood for cognitive functioning; very few studies, however, have examined the importance of childhood cognitive resources for cognitive outcomes later in life. Research Design and Methods Using data from 11 countries included in the Survey of Health, Ageing, and Retirement in Europe (SHARE) data set (N = 32,783), multistate survival models (MSMs) were fit to examine the importance of access to reading material in childhood on transitions through cognitive status categories (no cognitive impairment and impaired cognitive functioning) and death. Additionally, using the transition probabilities estimated by the MSMs, we estimated the remaining years of life without cognitive impairment and total longevity. All models were fit individually in each country, as well as within the pooled SHARE sample. Results Adjusting for age, sex, education, and childhood socioeconomic status, the overall pooled estimate indicated that access to more books at age 10 was associated with a decreased risk of developing cognitive impairment (adjusted hazard ratio = 0.79, confidence interval: 0.76-0.82). Access to childhood books was not associated with risk of transitioning from normal cognitive functioning to death, or from cognitive impairment to death. Total longevity was similar between participants reporting high (+1 standard deviation [SD]) and low (-1 SD) number of books in the childhood home; however, individuals with more access to childhood books lived a greater proportion of this time without cognitive impairment. Discussion and Implications Findings suggest that access to cognitive resources in childhood is protective for cognitive aging processes in older adulthood.
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Affiliation(s)
- Nathan A Lewis
- Institute on Aging and Lifelong Health, University of Victoria, Victoria, British Columbia, Canada
- Department of Psychology, University of British Columbia, Vancouver, British Columbia, Canada
| | - Tomiko Yoneda
- Department of Medical Social Sciences, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
- Department of Psychology, University of California, Davis, California, USA
| | - René J F Melis
- Department of Geriatric Medicine, Radboud Institute for Health Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Daniel K Mroczek
- Department of Medical Social Sciences, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - Scott M Hofer
- Pacific Health Research and Education Institute, Honolulu, Hawaii, USA
- Department of Neurology, School of Medicine, Oregon Health & Science University, Portland, Oregon, USA
| | - Graciela Muniz-Terrera
- Ohio University Heritage College of Osteopathic Medicine, Ohio University, Athens, Ohio, USA
- Edinburgh Dementia Prevention, University of Edinburgh, Edinburgh, UK
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8
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Cognitive reserve profiles are associated with outcome in schizophrenia. J Neurol Sci 2022; 443:120496. [PMID: 36410188 DOI: 10.1016/j.jns.2022.120496] [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: 05/17/2022] [Revised: 10/17/2022] [Accepted: 11/12/2022] [Indexed: 11/17/2022]
Abstract
Cognitive reserve (CR), the brain's ability to cope with brain pathology to minimize symptoms, could explain the heterogeneity of outcomes in neuropsychiatric disorders, however it is still rarely investigated in schizophrenia. Indeed, this study aims to classify CR in this disorder and evaluate its impact on neurocognitive and socio-cognitive performance and daily functioning. A group of 106 patients diagnosed with schizophrenia was enrolled and assessed in these aereas: neurocognition, Theory of Mind (ToM) and daily functioning. A composite CR score was determined through an integration of the intelligence quotient and education and leisure activities. CR profiles were classified with a two-step cluster analysis and differences among clusters were determined with an analysis of variance (ANOVA). The cluster analysis was identified with three CR profiles characterized, respectively, by high, medium and low CR. ANOVA analysis showed significant differences on neurocognition, ToM and daily functioning between the clusters: people with higher CR reached significantly superior scores. This study suggests that greater general cognitive resources could act as a buffer against the effect of brain pathology, allowing patients to have a better cognitive performance, social outcome and quality of life.
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Peng S, Roth AR, Apostolova LG, Saykin AJ, Perry BL. Cognitively stimulating environments and cognitive reserve: the case of personal social networks. Neurobiol Aging 2022; 112:197-203. [PMID: 35231846 PMCID: PMC9019994 DOI: 10.1016/j.neurobiolaging.2022.01.004] [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: 03/30/2021] [Revised: 01/19/2022] [Accepted: 01/19/2022] [Indexed: 11/17/2022]
Abstract
Cognitively stimulating environments are thought to be protective of cognitive decline and onset of Alzheimer's disease and related dementias (ADRD) through the development of cognitive reserve (CR). CR refers to cognitive adaptability that buffers the impact of brain pathology on cognitive function. Despite the critical need to identify cognitively stimulating environments to build CR, there is no consensus regarding which environmental determinants are most effective. Rather, most studies use education as proxies for CR and little is known about the association between older adults' personal social networks and CR. Using neuroimaging data from 135 older adults participating in the Social Networks in Alzheimer Disease (SNAD) study, this article adopted a residual method for measuring CR and found that large network size, high network diversity, and loosely connected networks were positively associated with greater CR. These results suggest that expansive social networks in later life may constitute cognitively stimulating environments which can be leveraged to build CR and reduce the burden of ADRD.
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Affiliation(s)
- Siyun Peng
- Department of Sociology & Network Science Institute, Indiana University, Bloomington, IN, USA.
| | - Adam R Roth
- Department of Sociology & Network Science Institute, Indiana University, Bloomington, IN, USA
| | | | - Andrew J Saykin
- Department of Radiology and Imaging Sciences & Indiana Alzheimer Disease Center, Indiana University, Indianapolis, IN, USA
| | - Brea L Perry
- Department of Sociology & Network Science Institute, Indiana University, Bloomington, IN, USA
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Schwartz CE, Stark RB, Borowiec K, Rapkin BD. Drivers of caregiver impact in Duchenne muscular dystrophy: a cohort study. J Patient Rep Outcomes 2022; 6:22. [PMID: 35274180 PMCID: PMC8911104 DOI: 10.1186/s41687-022-00421-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 02/08/2022] [Indexed: 11/17/2022] Open
Abstract
Background In our companion paper, we addressed the interplay between caregiver impact, out-of-pocket expenditures, and Duchenne Muscular Dystrophy (DMD) disability. We found that DMD caregiver impact could be characterized by four Latent Profile Analysis impact profiles: lowest, lower middle, upper middle, and highest impact. The impact on caregivers was often but not always worse with greater out-of-pocket expenditures. Further, while the lowest-, lower-middle, and highest-impact profiles reflected low, moderate and high disability-related caregiver burden, respectively, the upper-middle profile group was quite variable in level of disability across domains. To better understand the four caregiver-impact profiles, we examine how a comprehensive set of psychosocial factors differentiate the four profile groups. Methods Psychosocial factors assessed included demographic characteristics, quality of life (QOL), stress, cognitive appraisal, reserve-building, and general and COVID-specific resilience. Linear modeling examined relationships between impact profiles and psychosocial factors. We used effect size rather than p-value as the criterion for determining relevance of the broad range of characteristics examined. Results Multivariate analyses implicated stress and environmental mastery, appraisal sampling of experience, COVID-specific variables, appraisal standards of comparison, appraisal goals, demographics, appraisal combinatory algorithm, reserve-building, and resilience, in order of prominence (average eta2 = 0.29, 0.29, 0.16, 0.15, 0.09, 0.07, 0.07, 0.06, 0.05, and 0.02, respectively). On the whole, comparisons of highest-versus-lowest impact profiles revealed more and larger differences than comparisons of upper-middle versus lower-middle impact profiles. Life stress, goals, and reserve-building activities had a smaller differentiating effect in the middle groups. Conclusion A more comprehensive ‘story’ about DMD caregiver impact involves life stress, environmental mastery, COVID-specific variables, and cognitive and behavioral factors. Implications are discussed for coaching interventions to support DMD caregivers.
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Affiliation(s)
- Carolyn E Schwartz
- DeltaQuest Foundation, Inc., 31 Mitchell Road, Concord, MA, 01742, USA. .,Departments of Medicine and Orthopaedic Surgery, Tufts University Medical School, Boston, MA, USA.
| | - Roland B Stark
- DeltaQuest Foundation, Inc., 31 Mitchell Road, Concord, MA, 01742, USA
| | - Katrina Borowiec
- DeltaQuest Foundation, Inc., 31 Mitchell Road, Concord, MA, 01742, USA.,Department of Measurement, Evaluation, Statistics, and Assessment, Boston College Lynch School of Education and Human Development, Chestnut Hill, MA, USA
| | - Bruce D Rapkin
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY, USA
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Schwartz CE, Stark RB, Audhya IF, Gooch KL. Characterizing the quality-of-life impact of Duchenne muscular dystrophy on caregivers: a case-control investigation. J Patient Rep Outcomes 2021; 5:124. [PMID: 34800189 PMCID: PMC8605451 DOI: 10.1186/s41687-021-00386-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Accepted: 10/07/2021] [Indexed: 12/11/2022] Open
Abstract
Background This study examined the impact of Duchenne muscular dystrophy (DMD) on family-member caregivers in terms of quality of life, life stress, and indirect costs, as compared to a stratified comparison group of parents of similar-age children without DMD. Methods A web-based survey included DMD caregivers and a nationally representative comparison group of parents of children without DMD stratified by Child Age Group. Outcomes included quality of life, resilience, caregiver impact, stressful life events, financial strain, out-of-pocket expenditures, work productivity and unrealized ambitions. General linear models assessed the main effect of Caregiver Group and the interaction of Caregiver Group with Child-Age-Group, after adjusting for demographic covariates. Results Compared to parents without a DMD child, DMD Caregivers reported better physical health but worse mental health, positive affect/well-being, environmental mastery, difficulty paying bills, and more hours missed from work. Providing caregiving support for DMD teenagers was the most challenging. DMD caregivers curtailed their educational and professional ambitions, and modified their homes to accommodate the disability associated with DMD. Their non-DMD children had to make sacrifices as well. Nonetheless, in resilience and life stress, DMD caregivers were comparable to the comparison group, and showed consistent levels of positive emotions across the age of their DMD child. Conclusion DMD caregivers fared worse on most outcomes and faced more hurdles in work life. They face constraints and hidden costs that impact their health and financial well-being. Caregivers of teenagers with DMD reported higher impact. Nonetheless, parents of DMD children of all ages maintained notable resilience and positivity. Supplementary Information The online version contains supplementary material available at 10.1186/s41687-021-00386-y.
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Affiliation(s)
- Carolyn E Schwartz
- DeltaQuest Foundation, Inc, 31 Mitchell Road, Concord, MA, 01742, USA. .,Departments of Medicine and Orthopaedic Surgery, Tufts University Medical School, Boston, MA, USA.
| | - Roland B Stark
- DeltaQuest Foundation, Inc, 31 Mitchell Road, Concord, MA, 01742, USA
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Vollmer TL, Nair KV, Williams IM, Alvarez E. Multiple Sclerosis Phenotypes as a Continuum: The Role of Neurologic Reserve. Neurol Clin Pract 2021; 11:342-351. [PMID: 34476126 PMCID: PMC8382415 DOI: 10.1212/cpj.0000000000001045] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Accepted: 12/10/2020] [Indexed: 12/20/2022]
Abstract
Purpose of Review This review presents the hypothesis that loss of neurologic reserve explains onset of progressive multiple sclerosis (PrMS). Recent Findings Evidence supporting the separate classification of PrMS and relapsing multiple sclerosis (RMS) is limited and does not explain PrMS or the response of these patients to therapy. Summary We argue that multiple sclerosis (MS) progresses along a continuum from RMS to PrMS, with differing levels of neurologic reserve accounting for phenotypic differences. In early MS, inflammation causes brain atrophy with symptoms buffered by neurologic reserve. As brain loss from normal aging and MS continues, reserve is depleted and effects of subclinical MS disease activity and aging are unmasked, manifesting as PrMS. Most therapies show limited benefit in PrMS; patients are older, have fewer inflammatory events, and the effects of aging cause continued loss of neurologic function, even if inflammation is terminated. Loss of neurologic reserve means patients with PrMS cannot recover function, unlike patients with RMS.
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Affiliation(s)
- Timothy L Vollmer
- Department of Neurology (TLV, KVN, EA), University of Colorado, and Rocky Mountain Multiple Sclerosis Center at the University of Colorado, Aurora; Department of Clinical Pharmacy (KVN), Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora; and Oxford PharmaGenesis (IMW), United Kingdom
| | - Kavita V Nair
- Department of Neurology (TLV, KVN, EA), University of Colorado, and Rocky Mountain Multiple Sclerosis Center at the University of Colorado, Aurora; Department of Clinical Pharmacy (KVN), Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora; and Oxford PharmaGenesis (IMW), United Kingdom
| | - Ian M Williams
- Department of Neurology (TLV, KVN, EA), University of Colorado, and Rocky Mountain Multiple Sclerosis Center at the University of Colorado, Aurora; Department of Clinical Pharmacy (KVN), Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora; and Oxford PharmaGenesis (IMW), United Kingdom
| | - Enrique Alvarez
- Department of Neurology (TLV, KVN, EA), University of Colorado, and Rocky Mountain Multiple Sclerosis Center at the University of Colorado, Aurora; Department of Clinical Pharmacy (KVN), Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora; and Oxford PharmaGenesis (IMW), United Kingdom
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Schwartz CE, Stark RB, Balasuberamaniam P, Shrikumar M, Wasim A, Finkelstein JA. Moving toward better health: exercise practice is associated with improved outcomes after spine surgery in people with degenerative lumbar conditions. Can J Surg 2021; 64:E419-E427. [PMID: 34323063 PMCID: PMC8410477 DOI: 10.1503/cjs.010620] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Background: Recovery and rehabilitation following surgery can take many months. Understanding what patients can do to facilitate recovery would be beneficial for spinal surgeons. This study sought to evaluate the impact of exercise practice, before and after surgery, on long-term outcomes of spine surgery in a robust clinical sample. Methods: This prospective longitudinal cohort study included adult patients undergoing spinal surgery for degenerative spinal conditions. Patients were administered a survey that included preoperative and postoperative exercise practices and the following patient-reported outcome measures: the physical component score (PCS) and mental component score (MCS) of the Medical Outcomes Study 36-Item Short Form Survey (Rand-36), the Oswestry Disability Index (ODI) score, the Numeric Rating Scale (NRS) score for pain and the Patient-Reported Outcome Measurement Information System (PROMIS) Pain Interference Short Form score. Random effects models investigated the relationship of exercise, follow-up time and their interaction in predicting each patient-reported outcome measure over time, with and without sociodemographic covariates. Results: There were 168 patients in the study sample with up to 12 months of follow-up data. Analysis revealed modest significant main effects of exercise on PCS, MCS, ODI and PROMIS scores and main effects of time on all outcomes. The exercise-by-time interaction was significant in predicting the trajectories of the ODI and MCS scores. When full models were adjusted for education and employment status, interaction effects were no longer significant, but exercise main effects remained significant for ODI score. Conclusion: Patients who engage in exercise before and after spine surgery have better mental health and spine-specific recovery trajectories than those who do not. All health care providers should encourage patients to exercise while they are waiting for surgery within preoperative limitations and as soon as they are able after surgery and to continue this over the long term.
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Affiliation(s)
- Carolyn E Schwartz
- From the DeltaQuest Foundation, Inc., Concord, Mass., (Schwartz, Stark); the Departments of Medicine and Orthopaedic Surgery, Tufts University School of Medicine, Boston, Mass. (Schwartz); and the Division of Orthopedic Surgery, Sunnybrook Health Sciences Centre, Toronto, Ont. (Balasuberamaniam, Shrikumar, Wasim, Finkelstein)
| | - Roland B Stark
- From the DeltaQuest Foundation, Inc., Concord, Mass., (Schwartz, Stark); the Departments of Medicine and Orthopaedic Surgery, Tufts University School of Medicine, Boston, Mass. (Schwartz); and the Division of Orthopedic Surgery, Sunnybrook Health Sciences Centre, Toronto, Ont. (Balasuberamaniam, Shrikumar, Wasim, Finkelstein)
| | - Phumeena Balasuberamaniam
- From the DeltaQuest Foundation, Inc., Concord, Mass., (Schwartz, Stark); the Departments of Medicine and Orthopaedic Surgery, Tufts University School of Medicine, Boston, Mass. (Schwartz); and the Division of Orthopedic Surgery, Sunnybrook Health Sciences Centre, Toronto, Ont. (Balasuberamaniam, Shrikumar, Wasim, Finkelstein)
| | - Mopina Shrikumar
- From the DeltaQuest Foundation, Inc., Concord, Mass., (Schwartz, Stark); the Departments of Medicine and Orthopaedic Surgery, Tufts University School of Medicine, Boston, Mass. (Schwartz); and the Division of Orthopedic Surgery, Sunnybrook Health Sciences Centre, Toronto, Ont. (Balasuberamaniam, Shrikumar, Wasim, Finkelstein)
| | - Abeer Wasim
- From the DeltaQuest Foundation, Inc., Concord, Mass., (Schwartz, Stark); the Departments of Medicine and Orthopaedic Surgery, Tufts University School of Medicine, Boston, Mass. (Schwartz); and the Division of Orthopedic Surgery, Sunnybrook Health Sciences Centre, Toronto, Ont. (Balasuberamaniam, Shrikumar, Wasim, Finkelstein)
| | - Joel A Finkelstein
- From the DeltaQuest Foundation, Inc., Concord, Mass., (Schwartz, Stark); the Departments of Medicine and Orthopaedic Surgery, Tufts University School of Medicine, Boston, Mass. (Schwartz); and the Division of Orthopedic Surgery, Sunnybrook Health Sciences Centre, Toronto, Ont. (Balasuberamaniam, Shrikumar, Wasim, Finkelstein)
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Boyle R, Knight SP, De Looze C, Carey D, Scarlett S, Stern Y, Robertson IH, Kenny RA, Whelan R. Verbal intelligence is a more robust cross-sectional measure of cognitive reserve than level of education in healthy older adults. Alzheimers Res Ther 2021; 13:128. [PMID: 34253231 PMCID: PMC8276413 DOI: 10.1186/s13195-021-00870-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Accepted: 06/28/2021] [Indexed: 01/02/2023]
Abstract
BACKGROUND Cognitive reserve is most commonly measured using socio-behavioural proxy variables. These variables are easy to collect, have a straightforward interpretation, and are widely associated with reduced risk of dementia and cognitive decline in epidemiological studies. However, the specific proxies vary across studies and have rarely been assessed in complete models of cognitive reserve (i.e. alongside both a measure of cognitive outcome and a measure of brain structure). Complete models can test independent associations between proxies and cognitive function in addition to the moderation effect of proxies on the brain-cognition relationship. Consequently, there is insufficient empirical evidence guiding the choice of proxy measures of cognitive reserve and poor comparability across studies. METHOD In a cross-sectional study, we assessed the validity of 5 common proxies (education, occupational complexity, verbal intelligence, leisure activities, and exercise) and all possible combinations of these proxies in 2 separate community-dwelling older adult cohorts: The Irish Longitudinal Study on Ageing (TILDA; N = 313, mean age = 68.9 years, range = 54-88) and the Cognitive Reserve/Reference Ability Neural Network Study (CR/RANN; N = 234, mean age = 64.49 years, range = 50-80). Fifteen models were created with 3 brain structure variables (grey matter volume, hippocampal volume, and mean cortical thickness) and 5 cognitive variables (verbal fluency, processing speed, executive function, episodic memory, and global cognition). RESULTS No moderation effects were observed. There were robust positive associations with cognitive function, independent of brain structure, for 2 individual proxies (verbal intelligence and education) and 16 composites (i.e. combinations of proxies). Verbal intelligence was statistically significant in all models. Education was significant only in models with executive function as the cognitive outcome variable. Three robust composites were observed in more than two-thirds of brain-cognition models: the composites of (1) occupational complexity and verbal intelligence, (2) education and verbal intelligence, and (3) education, occupational complexity, and verbal intelligence. However, no composite had larger average effects nor was more robust than verbal intelligence alone. CONCLUSION These results support the use of verbal intelligence as a proxy measure of CR in cross-sectional studies of cognitively healthy older adults.
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Affiliation(s)
- R Boyle
- Trinity College Institute of Neuroscience, Trinity College Dublin, Dublin, Ireland
| | - S P Knight
- The Irish Longitudinal Study on Ageing, Trinity College Dublin, Dublin, Ireland
| | - C De Looze
- The Irish Longitudinal Study on Ageing, Trinity College Dublin, Dublin, Ireland
| | - D Carey
- The Irish Longitudinal Study on Ageing, Trinity College Dublin, Dublin, Ireland
| | - S Scarlett
- The Irish Longitudinal Study on Ageing, Trinity College Dublin, Dublin, Ireland
| | - Y Stern
- Cognitive Neuroscience Division, Department of Neurology, Columbia University, New York City, USA
| | - I H Robertson
- Trinity College Institute of Neuroscience, Trinity College Dublin, Dublin, Ireland
- Global Brain Health Institute, Trinity College Dublin, Dublin, Ireland
| | - R A Kenny
- The Irish Longitudinal Study on Ageing, Trinity College Dublin, Dublin, Ireland
- Mercer's Institute for Successful Ageing, St. James's Hospital, Dublin, Ireland
| | - R Whelan
- Trinity College Institute of Neuroscience, Trinity College Dublin, Dublin, Ireland.
- Global Brain Health Institute, Trinity College Dublin, Dublin, Ireland.
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15
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Jiménez-Morales RM, Broche-Pérez Y, Macías-Delgado Y, Sebrango C, Díaz-Díaz S, Castiñeira-Rodriguez R, Pérez-González FJ, Forn C. Cognitive rehabilitation program in patients with multiple sclerosis: A pilot study. Neurologia 2021:S0213-4853(21)00088-8. [PMID: 34253414 DOI: 10.1016/j.nrl.2021.03.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 03/03/2021] [Accepted: 03/24/2021] [Indexed: 10/20/2022] Open
Abstract
INTRODUCTION In recent years, there has been an increase of studies dedicated to cognitive rehabilitation in patients with multiple sclerosis (MS); however, few of these analyze the impact on such variables as cognitive reserve. The study aims to explore the effects of a cognitive rehabilitation program comprising a combination of cognitive and physical exercises, as well as group sessions to improve cognitive performance, emotional state, and cognitive reserve index. METHOD Fifty patients with MS were subdivided into 2 groups: the control group, which performed aerobic exercise (n=25), and the experimental group (n=25), which participated in the integrated cognitive rehabilitation program (ICRP). All participants were evaluated 3 times (baseline, post-treatment, and long-term) with the Brief Repeatable Battery of Neuropsychological Tests, Cognitive Reserve Scale, Beck Depression Inventory, and a scale evaluating trait and state anxiety. RESULTS Compared with the control group, patients in the experimental group showed improvements in cognitive function, with significant changes in measures of information processing speed, attention, memory, cognitive reserve index, and long-term mood. CONCLUSIONS The ICRP was effective in improving cognitive and emotional function in MS, and increased the cognitive reserve index.
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Affiliation(s)
- R M Jiménez-Morales
- Physical Medicine and Rehabilitation Department, Rehabilitation Hospital Dr. Faustino Pérez Hernández, Sancti Spíritus, Cuba; Center for Studies in Educational Sciences, José Martí University of Sancti Spíritus, Cuba.
| | - Y Broche-Pérez
- Psychology Department, Universidad Central "Marta Abreu" de Las Villas, Cuba
| | - Y Macías-Delgado
- Psychology Department, University of Medical Sciences Dr. Fustino Pérez Hernández, de Sancti Spíritus, Cuba
| | - C Sebrango
- Center for Studies Energy and Industrial, José Martí University of Sancti Spíritus, Cuba
| | - S Díaz-Díaz
- Physical Medicine and Rehabilitation Department, Rehabilitation Hospital Dr. Faustino Pérez Hernández, Sancti Spíritus, Cuba
| | - R Castiñeira-Rodriguez
- Physical Medicine and Rehabilitation Department, Rehabilitation Hospital Dr. Faustino Pérez Hernández, Sancti Spíritus, Cuba
| | - F J Pérez-González
- Center for Studies in Educational Sciences, José Martí University of Sancti Spíritus, Cuba
| | - C Forn
- Psicología Bàsica, Clínica i Psicobiología Depatment, Universitat Jaume I, Spain
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16
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Shreffler-Grant J, Nichols EG, Weinert C. Community-based Skill Building Intervention to Enhance Health Literacy Among Older Rural Adults. West J Nurs Res 2021; 43:668-676. [PMID: 32940145 PMCID: PMC8363136 DOI: 10.1177/0193945920958014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The purpose of this article is to report the outcomes of a skill building intervention to improve general health literacy and health literacy about complementary and alternative therapies (CAM) among older rural adults. The intervention was implemented in eight rural communities. Descriptive statistics and general linear modeling were used for analysis. A total of 127 older adults completed the initial session and Time 1 questionnaire, 67 (51%) completed the intervention sessions and Time 2 questionnaire, and 52 (40.9%) completed the Time 3 questionnaire five months later. CAM health literacy scores and scores on one general health literacy measure were significantly higher at Time 2 compared to Time 1 and 3. The decline in scores over time suggests a need for continuing strategies to support older adults' health literacy. Assisting older adults to make safe health care choices is a critical role for investigators, nurses, and other health care providers.
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Affiliation(s)
- Jean Shreffler-Grant
- Professor Emerita & Research Scientist, College of Nursing, Montana State University, Bozeman, MT, USA
| | - Elizabeth G. Nichols
- Professor Emerita & Research Scientist, College of Nursing, Montana State University, Bozeman, MT, USA
| | - Clarann Weinert
- Professor Emerita & Research Scientist, College of Nursing, Montana State University, Bozeman, MT, USA
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17
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Hammond FM, Perkins SM, Corrigan JD, Nakase-Richardson R, Brown AW, O'Neil-Pirozzi TM, Zasler ND, Greenwald BD. Functional Change from Five to Fifteen Years after Traumatic Brain Injury. J Neurotrauma 2020; 38:858-869. [PMID: 32907468 DOI: 10.1089/neu.2020.7287] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Few studies have assessed the long-term functional outcomes of traumatic brain injury (TBI) in large, well-characterized samples. Using the Traumatic Brain Injury Model Systems cohort, this study assessed the maintenance of independence between years 5 and 15 post-injury and risk factors for decline. The study sample included 1381 persons with TBI who received inpatient rehabilitation, survived to 15 years post-injury, and were available for data collection at 5 or 10 years and 15 years post-injury. The Functional Independence Measure (FIM) and Disability Rating Scale (DRS) were used to measure functional outcomes. The majority of participants had no changes during the 10-year time frame. For FIM, only 4.4% showed decline in Self-Care, 4.9% declined in Mobility, and 5.9% declined in Cognition. Overall, 10.4% showed decline in one or more FIM subscales. Decline was detected by DRS Level of Function (24% with >1-point change) and Employability (6% with >1-point change). Predictors of decline factors across all measures were age >25 years and, across most measures, having less than or equal to a high school education. Additional predictors of FIM decline included male sex (FIM Mobility and Self-Care) and longer rehabilitation length of stay (FIM Mobility and Cognition). In contrast to studies reporting change in the first 5 years post-TBI inpatient rehabilitation, a majority of those who survive to 15 years do not experience functional decline. Aging and cognitive reserve appear to be more important drivers of loss of function than original severity of the injury. Interventions to identify those at risk for decline may be needed to maintain or enhance functional status as persons age with a TBI.
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Affiliation(s)
- Flora M Hammond
- Department of Physical Medicine and Rehabilitation, Indiana University School of Medicine, Rehabilitation Hospital of Indiana, Indianapolis, Indiana, USA
| | - Susan M Perkins
- Department of Biostatistics, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - John D Corrigan
- Department of Physical Medicine and Rehabilitation, The Ohio State University, Columbus, Ohio, USA
| | - Risa Nakase-Richardson
- Mental Health and Behavioral Sciences and Defense and Veterans Brain Injury Center, James A. Haley Veterans Hospital, Polytrauma TBI Rehabilitation, Tampa, Florida, USA.,Department of Internal Medicine, Division of Pulmonary and Sleep Medicine, University of South Florida, Tampa, Florida, USA
| | - Allen W Brown
- Department of Physical Medicine and Rehabilitation, Mayo Clinic College of Medicine and Science, Mayo Clinic, Rochester, Minnesota, USA
| | - Therese M O'Neil-Pirozzi
- Department of Physical Medicine and Rehabilitation, Spaulding Rehabilitation Hospital, Boston, Massachusetts, USA.,Department of Communication Sciences and Disorders, Northeastern University, Boston, Massachusetts, USA
| | - Nathan D Zasler
- Department of Physical Medicine and Rehabilitation, Virginia Commonwealth University, Richmond, Virginia, USA.,Department of Physical Medicine and Rehabilitation, University of Virginia, Charlottesville, Virginia, USA
| | - Brian D Greenwald
- Department of Physical Medicine and Rehabilitation, Edison, New Jersey, USA
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18
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Rodriguez FS, Zheng L, Chui HC. Psychometric Characteristics of Cognitive Reserve: How High Education Might Improve Certain Cognitive Abilities in Aging. Dement Geriatr Cogn Disord 2020; 47:335-344. [PMID: 31466060 DOI: 10.1159/000501150] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Accepted: 05/23/2019] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND The capacity to mitigate dementia symptomology despite the prevailing brain pathology has been attributed to cognitive reserve. OBJECTIVES This study aimed to investigate how psychometric performance differs between individuals with a high school versus college education (surrogate measures for medium and high cognitive reserves) given the same level of brain pathology assessed using quantitative structural MRI. METHODS We used data from the Aging Brain: Vasculature, Ischemia, and Behavior Study (ABVIB). Cognition was assessed using a neuropsychological battery that included those contained in the National Alzheimer's Coordinating Center (NACC) uniform data set. Participants with a medium and high cognitive reserve were matched by level of structural MRI changes, gender, and age. RESULTS Matched-pair regression analyses indicated that individuals with a higher education had a significantly better performance in recognition and verbal fluency animals, working memory, and processing speed in complex tasks. Moreover, they had a better performance in interference trails compared to individuals with a high school education (medium cognitive reserve). CONCLUSIONS Our findings suggest that, given the same level of brain pathology, individuals with a higher education (cognitive reserve) benefit from a superior performance in semantic memory and executive functioning. Differences in these cognitive domains may be key pathways explaining how individuals with a high cognitive reserve are able to diminish dementia symptomatology despite physical changes in the brain.
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Affiliation(s)
- Francisca S Rodriguez
- Institute of Social Medicine, Occupational Health and Public Health, University of Leipzig, Leipzig, Germany, .,Center for Cognitive Science, University of Kaiserslautern, Kaiserslautern, Germany,
| | - Ling Zheng
- USC Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Helena C Chui
- USC Keck School of Medicine, University of Southern California, Los Angeles, California, USA
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19
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Schwartz CE, Zhang J, Stucky BD, Michael W, Rapkin BD. Is the link between socioeconomic status and resilience mediated by reserve-building activities: mediation analysis of web-based cross-sectional data from chronic medical illness patient panels. BMJ Open 2019; 9:e025602. [PMID: 31154302 PMCID: PMC6549651 DOI: 10.1136/bmjopen-2018-025602] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 02/06/2019] [Accepted: 04/17/2019] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVES The purpose of this study is to test the hypothesis that the link between socioeconomic status (SES) and resilience is mediated by reserve-building activities. DESIGN Cross-sectional observational study. Structural equation modelling (SEM) was used to test the mediation hypothesis. SETTING Web-based survey. PARTICIPANTS Participants with a chronic medical condition were recruited from Rare Patient Voice. PRIMARY AND SECONDARY OUTCOME MEASURES DeltaQuest Reserve-Building Measure; demographic variables to capture SES; Centers for Disease Control Healthy Days Core Module; Self-Administered Comorbidity Questionnaire. Resilience was operationalised using residual modelling. RESULTS The study sample included 442 patients (mean age 49, 85% female). SES was modelled as a bifactor model composed of general SES and specific factors for personal finance and parent's education. A series of simple mediation models predicting resilience led to the selection of three reserve-building activities for subsequent SEM-based mediation models: Active in the World, Outdoor and Exercise. The full SEM model supported the hypothesis that the relationships from both general SES and personal finance to resilience were mediated by engaging in the three reserve-building activities. In addition, the number of comorbidities partially mediated the relationship between personal finance and reserve-building. Those with more comorbidities generally had lower levels of resilience. CONCLUSIONS This study provides suggestive evidence that reserve-building activities may be one pathway by which SES is associated with resilience: people of higher SES are more likely to engage in reserve-building activities that are intellectually stimulating, involve Outdoor pursuits and include physical Exercise. These reserve-building activities are not costly to pursue. These findings may empower patients to introduce more such reserve-building activities into their lives.
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Affiliation(s)
- Carolyn Emily Schwartz
- DeltaQuest Foundation, Inc, Concord, California, USA
- Medicine and Orthopaedic Surgery, Tufts University School of Medicine, Boston, Massachusetts, USA
| | - Jie Zhang
- DeltaQuest Foundation, Inc, Concord, California, USA
| | | | | | - Bruce David Rapkin
- Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, New York, USA
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20
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Kelly DA, Seidenberg M, Reiter K, Nielson KA, Woodard JL, Smith JC, Durgerian S, Rao SM. Differential 5-year brain atrophy rates in cognitively declining and stable APOE-ε4 elders. Neuropsychology 2018; 32:647-653. [PMID: 29911873 DOI: 10.1037/neu0000444] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
OBJECTIVE The apolipoprotein E (APOE) ε4 allele is the most important genetic risk factor for late-onset Alzheimer's disease. Many ε4 carriers, however, never develop Alzheimer's disease. The purpose of this study is to characterize the variability in phenotypic expression of the ε4 allele, as measured by the longitudinal trajectory of cognitive test scores and MRI brain volumes, in cognitively intact elders. METHOD Healthy older adults, ages 65-85, participated in a 5-year longitudinal study that included structural MRI and cognitive testing administered at baseline and at 1.5 and 5 years postenrollment. Participants included 22 ε4 noncarriers, 15 ε4 carriers who experienced a decline in cognition over the 5-year interval, and 11 ε4 carriers who remained cognitively stable. RESULTS No baseline cognitive or volumetric group differences were observed. Compared to noncarriers, declining ε4 carriers had significantly greater rates of atrophy in left (p = .001, Cohen's d = .691) and right (p = .003, d = .622) cortical gray matter, left (p = .003, d = .625) and right (p = .020, d = .492) hippocampi, and greater expansion of the right inferior lateral ventricle (p < .001, d = .751) over 5 years. CONCLUSIONS This study illustrates the variability in phenotypic expression of the ε4 allele related to neurodegeneration. Specifically, only those individuals who exhibited longitudinal declines in cognitive function experienced concomitant changes in brain volume. Future research is needed to better understand the biological and lifestyle factors that may influence the expression of the ε4 allele. (PsycINFO Database Record
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Affiliation(s)
- Dana A Kelly
- Department of Psychology, Rosalind Franklin University of Medicine and Science
| | - Michael Seidenberg
- Department of Psychology, Rosalind Franklin University of Medicine and Science
| | | | | | | | - J Carson Smith
- Department of Kinesiology, School of Public Health, University of Maryland
| | | | - Stephen M Rao
- Schey Center for Cognitive Neuroimaging, Cleveland Clinic
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21
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Schwartz CE, Zhang J, Michael W, Eton DT, Rapkin BD. Reserve-building activities attenuate treatment burden in chronic illness: The mediating role of appraisal and social support. Health Psychol Open 2018; 5:2055102918773440. [PMID: 29785278 PMCID: PMC5954584 DOI: 10.1177/2055102918773440] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
This study examines the importance of four psychosocial factors—personality,
cognitive appraisal of quality of life, social support, and current
reserve-building—in predicting treatment burden in chronically ill patients.
Chronically ill patients (n = 446) completed web-based
measures. Structural equation modeling was used to investigate psychosocial
factors predicting treatment burden. Reserve-building activities indirectly
reduced treatment burden by: (1) reducing health worries appraisals, (2)
reducing financial difficulties, (3) increasing calm and peaceful appraisals,
and (4) increasing perceived social support. These findings point to key
behaviors that chronically ill people can use to attenuate their treatment
burden.
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Affiliation(s)
- Carolyn E Schwartz
- DeltaQuest Foundation, Inc., USA.,Tufts University School of Medicine, USA
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22
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Malek-Ahmadi M, Lu S, Chan Y, Perez SE, Chen K, Mufson EJ. Static and Dynamic Cognitive Reserve Proxy Measures: Interactions with Alzheimer's Disease Neuropathology and Cognition. JOURNAL OF ALZHEIMER'S DISEASE & PARKINSONISM 2017; 7:390. [PMID: 29423338 PMCID: PMC5800515 DOI: 10.4172/2161-0460.1000390] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
OBJECTIVE Years of education are the most common proxy for measuring cognitive reserve (CR) when assessing the relationship between Alzheimer's disease (AD) neuropathology and cognition. However, years of education may be limited as a CR proxy given that it represents a specific timeframe in early life and is static. Studies suggest that measures of intellectual function provide a dynamic estimate of CR that is superior to years of education since it captures the effect of continued learning over time. The present study determined whether dynamic measures of CR were better predictors of episodic memory and executive function in the presence of AD pathology than a static measure of CR. METHODS Subjects examined died with a pre-mortem clinical diagnosis of no cognitive impaired, mild cognitive impairment and mild to moderate AD. CERAD and Braak stage were used to stratify the sample by AD pathology severity. Linear regression analyses using CR by CERAD and CR by Braak stage interaction terms were used to determine whether Extended Range Vocabulary Test (ERVT) scores or years of education were significantly associated with episodic memory composite (EMC) and executive function composite (EFC) performance. All models were adjusted for clinical diagnosis, age at death, gender, APOE e4 carrier status and Braak stage. RESULTS For episodic memory, years of education by CERAD interaction were not statistically significant (β=-0.01, SE=0.01, p=0.53). By contrast, ERVT interaction with CERAD diagnosis was statistically significant (β=-0.03, SE=0.01, p=0.004). Among the models using Braak stages, none of the CR by pathology interactions were associated with EMC or EFC. CONCLUSION Results suggest that a dynamic rather than a static measure is a better indicator of CR and that the relationship between CR and cognition is dependent upon the severity of select AD criteria.
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Affiliation(s)
| | - Sophie Lu
- Williams College, Williamstown, MA, USA
| | | | - Sylvia E Perez
- Department of Neurobiology, Barrow Neurological Institute, 350 W. Thomas Rd. Phoenix, AZ, USA
| | - Kewei Chen
- Banner Alzheimer’s Institute 901 E. Willetta St. Phoenix, AZ, USA
| | - Elliott J Mufson
- Department of Neurobiology, Barrow Neurological Institute, 350 W. Thomas Rd. Phoenix, AZ, USA
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23
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Assessing reserve-building pursuits and person characteristics: psychometric validation of the Reserve-Building Measure. Qual Life Res 2017; 27:423-436. [DOI: 10.1007/s11136-017-1694-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/24/2017] [Indexed: 10/18/2022]
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Resilience to health challenges is related to different ways of thinking: mediators of physical and emotional quality of life in a heterogeneous rare-disease cohort. Qual Life Res 2017; 26:3075-3088. [PMID: 28660463 DOI: 10.1007/s11136-017-1633-2] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/22/2017] [Indexed: 10/19/2022]
Abstract
BACKGROUND We sought to understand what distinguishes people who confront health challenges but still manage to thrive. This study investigated whether resilience helps to explain the impact of health challenges on quality of life (QOL) outcomes, and how resilience relates to appraisal. METHODS A web-based survey of rare-disease panel participants included the Centers for Disease Control Healthy Days Core Module, the PROMIS-10, and comorbidities. The QOL Appraisal Profile-v2 assessed cognitive processes underlying QOL. Resilience was operationalized statistically using residual modeling, and hierarchical regressions tested the mediation hypothesis that resilience accounts for a significant amount of the relationship of appraisal to QOL. RESULTS The study sample (n = 3,324; mean age 50; 86% female; 90% White) represented a range of diagnostic codes, with cancer and diseases of the nervous system being the most prevalent health conditions. After adjusting for comorbidities (catalysts), resilience was associated with better physical and emotional functioning, and different appraisal processes were associated with better or worse physical or emotional functioning. After controlling for catalysts, 62% of the association of Physical Functioning and 23% of the association between Emotional Functioning and appraisal were mediated by resilience. Physical and emotional resilience comprised some of the same appraisal processes, but physically resilient people were characterized by more appraisal processes than their emotionally resilient counterparts. CONCLUSIONS Resilient people employ different appraisal processes than non-resilient people, and these processes differ for physical and emotional outcomes. Resilience was a stronger mediator of the relationship between physical rather than emotional functioning and appraisal.
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25
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Healy BC, Buckle GJ, Ali EN, Egorova S, Khalid F, Tauhid S, Glanz BI, Chitnis T, Guttmann CRG, Weiner HL, Bakshi R. Characterizing Clinical and MRI Dissociation in Patients with Multiple Sclerosis. J Neuroimaging 2017; 27:481-485. [PMID: 28261936 PMCID: PMC5600109 DOI: 10.1111/jon.12433] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Accepted: 01/25/2017] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND AND PURPOSE Two common approaches for measuring disease severity in multiple sclerosis (MS) are the clinical exam and brain magnetic resonance imaging (MRI) scan. Although most patients show similar disease severity on both measures, some patients have clinical/MRI dissociation. METHODS Subjects from a comprehensive care MS center who had a concurrent brain MRI, spinal cord MRI, clinical examination, and patient reported outcomes were classified into three groups based on the Expanded Disability Status Scale (EDSS) and cerebral T2 hyperintense lesion volume (T2LV). The first group was the low lesion load/high disability group (LL/HD) with T2LV < 2 ml and EDSS ≥ 3. The second group was the high lesion load/low disability group (HL/LD) with T2LV > 6 ml and EDSS ≤ 1.5. All remaining subjects were classified as not dissociated. The three groups were compared using regression techniques for unadjusted analyses and to adjust for age, disease duration, and gender. RESULTS Twenty‐two subjects were classified as LL/HD (4.1%; 95% CI: 2.6%, 6.2%), and 50 subjects were classified as HL/LD (9.4%; 95% CI: 7.0%, 12.2%). Subjects in the LL/HD group were more likely to have a progressive form of MS and had significantly lower physical quality of life in adjusted and unadjusted analysis. Subjects in HL/LD had significantly more gadolinium‐enhancing lesions, and subjects in the LL/HD group had significantly more cervical spinal cord lesions. CONCLUSIONS Our results indicate that dissociation may occur between physical disability and cerebral lesion volume in either direction in patients with MS. Type of MS, brain atrophy, and spinal cord lesions may help to bridge this dissociation.
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Affiliation(s)
- Brian C Healy
- Partners Multiple Sclerosis Center, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Guy J Buckle
- Neuroimaging Research, MS Institute at Shepard Center, Atlanta, GA
| | - Eman N Ali
- Partners Multiple Sclerosis Center, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Svetlana Egorova
- Partners Multiple Sclerosis Center, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Fariha Khalid
- Laboratory for Neuroimaging Research, Brigham and Women's Hospital, Boston, MA
| | - Shahamat Tauhid
- Laboratory for Neuroimaging Research, Brigham and Women's Hospital, Boston, MA
| | - Bonnie I Glanz
- Partners Multiple Sclerosis Center, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Tanuja Chitnis
- Partners Multiple Sclerosis Center, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | | | - Howard L Weiner
- Partners Multiple Sclerosis Center, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Rohit Bakshi
- Partners Multiple Sclerosis Center, Brigham and Women's Hospital, Harvard Medical School, Boston, MA.,Laboratory for Neuroimaging Research, Brigham and Women's Hospital, Boston, MA
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Cognitive reserve is associated with quality of life: A population-based study. Exp Gerontol 2016; 87:67-73. [PMID: 27825839 DOI: 10.1016/j.exger.2016.10.012] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Revised: 10/27/2016] [Accepted: 10/28/2016] [Indexed: 12/18/2022]
Abstract
OBJECTIVES To assess the association between cognitive reserve (CR) and quality of life (QoL), as well as the role of depression, cognitive functioning, and disability in this association. METHODS Nationally-representative cross-sectional population-based data on 1973 individuals aged ≥50years from the Spanish sample of the Collaborative Research on Ageing in Europe (COURAGE) study were analysed. CR was a composite score ranging from 0 to 25 obtained from the Cognitive Reserve Questionnaire, which is composed of items on training courses, occupation, musical training, languages, reading activities, intellectual games, and level of education of the participants and their parents. QoL, ranging from 0 to 100, was assessed with the WHOQOL-AGE. Multiple linear regression and mediation analyses were performed. RESULTS Higher levels of CR were associated with higher QoL, after controlling for potential confounders (Coef. 0.53; 95% CI=0.36, 0.70). The strongest mediator in this association was disability, which explained about half of the association, while depression and cognition explained 6-10% of this association. DISCUSSION CR is associated with higher QoL in older adults. Interventions targeting determinants of CR that can be modified or trained across the lifespan may lead to successful ageing by prolonging autonomous functioning and enhancing QoL.
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Schwartz CE, Dwyer MG, Benedict R, Weinstock-Guttman B, Bergsland NP, Li J, Ramanathan M, Zivadinov R. Reserve-related activities and MRI metrics in multiple sclerosis patients and healthy controls: an observational study. BMC Neurol 2016; 16:108. [PMID: 27430316 PMCID: PMC4949926 DOI: 10.1186/s12883-016-0624-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2016] [Accepted: 06/24/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND To examine whether past and current reserve-related activities make the brain less susceptible to MS pathology (i.e., lesions or disease-related atrophy). METHODS This secondary analysis of a cohort study included 276 healthy controls (HC), and 65 clinically isolated syndrome (CIS), 352 relapsing-remitting MS (RR) and 109 secondary- progressive MS (SPMS) patients. Past reserve-related activities comprised educational and occupational attainment. Current reserve-related activities comprised strenuous and non-strenuous activities. MRI was performed on 3 T scanner. Regression and non-parametric analysis examined relationships between MRI metrics and reserve-related activities. RESULTS Multivariate models (HC as referent) revealed significant interactions in predicting strenuous reserve-related activities with chronic lesion burden (for CIS), brain- (for RR & SPMS), subcortical- (for CIS, RR, & SPMS) and amygdala- (for RR) volumes. Maximal Lifetime Brain Growth was higher for RR patients who engaged in running before and after diagnosis, rather than only before or never. Residual Brain Volume was higher in RR patients who did weights-exercise before and after diagnosis, as compared to only before. CONCLUSIONS Reserve-related activities are related to brain health cross-sectionally in all MS subgroups, and longitudinally in RR patients. Consistent with reserve theory, RR patients who maintained strenuous activities had higher Maximal Lifetime Brain Growth and Residual Brain Volume. The study's limitations are discussed, including the potential for recall bias and design limitations that preclude causal inference.
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Affiliation(s)
- Carolyn E Schwartz
- DeltaQuest Foundation, Inc, 31 Mitchell Road, Concord, MA, 01742, USA. .,Departments of Medicine and Orthopaedic Surgery, Tufts University Medical School, Boston, MA, USA.
| | - Michael G Dwyer
- Buffalo Neuroimaging Analysis Center, Department of Neurology, School of Medicine and Biomedical Sciences, State University of New York, Buffalo, NY, USA.,Department of Biomedical Informatics, University of Buffalo, State University of New York, Buffalo, NY, USA
| | - Ralph Benedict
- Department of Neurology, School of Medicine and Biomedical Sciences, University of Buffalo, State University of New York, Buffalo, NY, USA
| | - Bianca Weinstock-Guttman
- Department of Neurology, School of Medicine and Biomedical Sciences, University of Buffalo, State University of New York, Buffalo, NY, USA
| | - Niels P Bergsland
- Buffalo Neuroimaging Analysis Center, Department of Neurology, School of Medicine and Biomedical Sciences, State University of New York, Buffalo, NY, USA.,Istituto Di Ricovero e Cura a Carattere Scientifico, "S.Maria Nascente", Don Gnocchi Foundation, Milan, Italy.,Department of Electronics, Information and Bioengineering, Politecnico di Milano, Milan, Italy
| | - Jei Li
- DeltaQuest Foundation, Inc, 31 Mitchell Road, Concord, MA, 01742, USA.,Department of Biostatistics, University of Massachusetts, Amherst, MA, USA
| | - Murali Ramanathan
- Department of Neurology, School of Medicine and Biomedical Sciences, University of Buffalo, State University of New York, Buffalo, NY, USA.,Department of Pharmaceutical Sciences, School of Medicine and Biomedical Sciences, State University of New York, Buffalo, NY, USA
| | - Robert Zivadinov
- Buffalo Neuroimaging Analysis Center, Department of Neurology, School of Medicine and Biomedical Sciences, State University of New York, Buffalo, NY, USA.,Department of Neurology, School of Medicine and Biomedical Sciences, University of Buffalo, State University of New York, Buffalo, NY, USA.,MR Imaging Clinical Translational Research Center, School of Medicine and Biomedical Sciences, University at Buffalo, State University of New York, Buffalo, NY, USA
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