scholarly journals The impact of the COVID-19 pandemic on dementia risk: Potential pathways to cognitive decline

2021 ◽  
Author(s):  
Jeffrey D Pyne ◽  
Adam M Brickman
Keyword(s):  
Cognitive Decline ◽  
Dementia Risk ◽  
The Impact ◽  
Risk Potential

scholarly journals Cognitive Trajectories and Dementia Risk: A Comparison of Two Cognitive Reserve Measures

2021 ◽  
Vol 13 ◽  
Author(s):  
Federico Gallo ◽  
Grégoria Kalpouzos ◽  
Erika J. Laukka ◽  
Rui Wang ◽  
Chengxuan Qiu ◽  
...  
Keyword(s):  
Cognitive Decline ◽  
Cognitive Reserve ◽  
Cognitive Change ◽  
National Study ◽  
Residual Variance ◽  
Dementia Risk ◽  
Dementia Incidence ◽  
Integrity Index ◽  
The Impact ◽  
The Brain

Background and ObjectivesCognitive reserve (CR) is meant to account for the mismatch between brain damage and cognitive decline or dementia. Generally, CR has been operationalized using proxy variables indicating exposure to enriching activities (activity-based CR). An alternative approach defines CR as residual variance in cognition, not explained by the brain status (residual-based CR). The aim of this study is to compare activity-based and residual-based CR measures in their association with cognitive trajectories and dementia. Furthermore, we seek to examine if the two measures modify the impact of brain integrity on cognitive trajectories and if they predict dementia incidence independent of brain status.MethodsWe used data on 430 older adults aged 60+ from the Swedish National Study on Aging and Care in Kungsholmen, followed for 12 years. Residual-based reserve was computed from a regression predicting episodic memory with a brain-integrity index incorporating six structural neuroimaging markers (white-matter hyperintensities volume, whole-brain gray matter volume, hippocampal volume, lateral ventricular volume, lacunes, and perivascular spaces), age, and sex. Activity-based reserve incorporated education, work complexity, social network, and leisure activities. Cognition was assessed with a composite of perceptual speed, semantic memory, letter-, and category fluency. Dementia was clinically diagnosed in accordance with DSM-IV criteria. Linear mixed models were used for cognitive change analyses. Interactions tested if reserve measures modified the association between brain-integrity and cognitive change. Cox proportional hazard models, adjusted for brain-integrity index, assessed dementia risk.ResultsBoth reserve measures were associated with cognitive trajectories [β × time (top tertile, ref.: bottom tertile) = 0.013; 95% CI: –0.126, –0.004 (residual-based) and 0.011; 95% CI: –0.001, 0.024, (activity-based)]. Residual-based, but not activity-based reserve mitigated the impact of brain integrity on cognitive decline [β (top tertile × time × brain integrity) = –0.021; 95% CI: –0.043, 0.001] and predicted 12-year dementia incidence, after accounting for the brain-integrity status [HR (top tertile) = 0.23; 95% CI: 0.09, 0.58].InterpretationThe operationalization of reserve based on residual cognitive performance may represent a more direct measure of CR than an activity-based approach. Ultimately, the two models of CR serve largely different aims. Accounting for brain integrity is essential in any model of reserve.

Relation between cognitive disorders and type of physical activity: Results of the FréLE cohort

2020 ◽  
Vol 30 (Supplement_5) ◽  
Author(s):  
C Dupré ◽  
N Barth ◽  
A El Moutawakkil ◽  
F Béland ◽  
F Roche ◽  
...  
Keyword(s):  
Physical Activity ◽  
Cognitive Decline ◽  
Proportional Hazards ◽  
Cognitive Disorders ◽  
The Elderly ◽  
Cognitive Status ◽  
Global Test ◽  
Professional Activities ◽  
Beneficial Effects ◽  
The Impact

Abstract Background Few previous cohorts have studied the different type of physical activities and the degree of cognitive decline. The objective of this work was to analyze the leisure, domestic and professional activities with mild and moderate cognitive disorders in older people living in community. Methods The study used data from the longitudinal and observational study, FrèLE (FRagility: Longitudinal Study of Expressions). The collected data included: socio-demographic variables, lifestyle, and health status (frailty, comorbidities, cognitive status, depression). Cognitive decline was assessed by using: MMSE (Mini-Mental State Examination) and MoCA (Montreal Cognitive Assessment). MoCA was used with two cut-offs (26 and 17) so as to define mild and moderate cognitive disorders Physical activity was assessed by the PASE (Physical Activity Scale for the Elderly), structured in three sections: leisure, domestic and professional activities. Spline and proportional hazards regression models (Cox) were used to estimate the risk of cognitive disorders. Results At baseline, 1623 participants were included and the prevalence of cognitive disorders was 6.9% (MMSE) and 7.2% (MoCA), mild cognitive disorders was 71.3%. The mean age was 77 years, and 52% of the participants were women. After a 2 years long follow-up, we found 6.9% (MMSE) and 6% (MoCA) cognitive disorders on participants. Analyses showed that domestic activities were associated to cognitive decline (HR = 0.52 [0.28-0.94] for MMSE and HR = 0.48 [0.28-0.80] for MoCA). No association were found with leisure and professional activities, and no spline were significant with mild cognitive disorders. Conclusions Analysis showed a relationship between cognitive disorders and type of physical activity, thanks to the use of specific questionnaire of elderly and two global test of cognition. These findings will contribute to the debate on the beneficial effects of physical activity on cognition. Key messages This work allowed to compare two test of cognition and their link with physical activity. It contributes to the debate on the beneficial effects of physical activity on cognition. The work allowed us to see the effect of the different types of physical activity and the impact of the statistical method on the results.

scholarly journals The Impact of SARS-CoV-2 (COVID-19) and its Lockdown Measures on the Mental and Functional Health of Older Individuals

2021 ◽  
Author(s):  
Maria Chiara Fastame ◽  
Ilaria Mulas ◽  
Valeria Putzu ◽  
Gesuina Asoni ◽  
Daniela Viale ◽  
...  
Keyword(s):  
Cognitive Decline ◽  
Wearable Sensors ◽  
Well Being ◽  
Functional Health ◽  
Cognitive Deterioration ◽  
Older Individuals ◽  
Physical And Mental Health ◽  
Psychological Well Being ◽  
The Impact ◽  
Healthy Participants

AbstractThe effect of the COVID-19 on the physical and mental health of Italian older individuals displaying signs of cognitive deterioration has not been deeply investigated. This longitudinal study examined the impact of COVID-19 lockdown measures on the psychological well-being and motor efficiency of a sample of Italian community-dwellers with and without cognitive decline. Forty-seven participants underwent instrumental gait analysis performed in ecological setting using wearable sensors, and completed a battery of tasks assessing cognitive functioning and psychological well-being, before and after the full lockdown due to the COVID-19 spreading. A series of Multivariate Analyses of Variance (MANOVAs) documented that the superior gait performance of the cognitively healthy participants exhibited before the COVID-19 spread, vanished when they were tested at the end of the lockdown period. Moreover, before the outbreak of the COVID-19, cognitively healthy participants and those with signs of cognitive decline reported similar levels of psychological well-being, whereas, after the lockdown, the former group reported better coping, emotional competencies, and general well-being than the participants displaying signs of cognitive decline. In conclusion, the full COVID-19 outbreak had a significant impact on the mental and motor functioning of older individuals with and without signs of cognitive deterioration living in Italy.

scholarly journals Cognitive decline in patients with prostate cancer: study protocol of a prospective cohort, NEON-PC

BMJ Open ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. e043844
Author(s):  
Natalia Araujo ◽  
Samantha Morais ◽  
Ana Rute Costa ◽  
Raquel Braga ◽  
Ana Filipa Carneiro ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Cognitive Decline ◽  
Cognitive Performance ◽  
Androgen Deprivation Therapy ◽  
Survival Rates ◽  
Cardiovascular Complications ◽  
Androgen Deprivation ◽  
High Survival ◽  
The Impact

IntroductionProstate cancer is the most prevalent oncological disease among men in industrialised countries. Despite the high survival rates, treatments are often associated with adverse effects, including metabolic and cardiovascular complications, sexual dysfunction and, to a lesser extent, cognitive decline. This study was primarily designed to evaluate the trajectories of cognitive performance in patients with prostate cancer, and to quantify the impact of the disease and its treatments on the occurrence of cognitive decline.MethodsParticipants will be recruited from two main hospitals providing care to approximately half of the patients with prostate cancer in Northern Portugal (Portuguese Institute of Oncology of Porto and São João Hospital Centre), and will comprise a cohort of recently diagnosed patients with prostate cancer proposed for different treatment plans, including: (1) radical prostatectomy; (2) brachytherapy and/or radiotherapy; (3) radiotherapy in combination with androgen deprivation therapy and (4) androgen deprivation therapy (with or without chemotherapy). Recruitment began in February 2018 and is expected to continue until the first semester of 2021. Follow-up evaluations will be conducted at 1, 3, 5, 7 and 10 years. Sociodemographic, behavioural and clinical characteristics, anxiety and depression, health literacy, health status, quality of life, and sleep quality will be assessed. Blood pressure and anthropometrics will be measured, and a fasting blood sample will be collected. Participants’ cognitive performance will be evaluated before treatments and throughout follow-up (Montreal Cognitive Assessment and Cube Test as well as Brain on Track for remote monitoring). All participants suspected of cognitive impairment will undergo neuropsychological tests and clinical observation by a neurologist.Ethics and disseminationThe study was approved by the Ethics Committee of the hospitals involved. All participants will provide written informed consent, and study procedures will be developed to ensure data protection and confidentiality. Results will be disseminated through publication in peer-reviewed journals and presentation in scientific meetings.

scholarly journals Spousal Loss and Cognitive Functioning: Do Pre-Loss Marital Quality and Gender Matter?

2020 ◽  
Vol 4 (Supplement_1) ◽  
pp. 366-366
Author(s):  
Joohong Min ◽  
Jieun Song
Keyword(s):  
Cognitive Decline ◽  
Cognitive Functioning ◽  
Marital Quality ◽  
The United States ◽  
Cognitive Change ◽  
Life Transitions ◽  
Cognitive Changes ◽  
Spousal Loss ◽  
And Gender ◽  
The Impact

Abstract Prior research has found that the risk of cognitive decline increases after the death of a spouse. In general, the impact of life transitions is contingent on contextual factors such as socio-demographic characteristics or relationship quality. However, there is limited research on how marital quality before spousal loss and gender influence the association between spousal loss and cognitive change. The current study examines the effects of spousal loss on change in cognitive functioning as well as the moderating effects of pre-loss marital quality and gender. Data from two waves of the Midlife in the United States (MIDUS) study were analyzed (MIDUS2: 2004-05, MIDUS3: 2013-14). The analytic sample consists of two groups: (1) 179 bereaved adults who were age 54 or older at MIDUS2 (M = 65.2, SD = 9.5) and whose spouses died between MIDUS2 and MIDUS3, and (2) 179 non-bereaved adults, matched with the bereaved group on age and gender, who did not experience spousal loss between the two waves. Cognitive function was assessed via BTACT (Brief Telephone Adult Cognition Test) at both waves. Regression results show that both pre-loss marital quality and gender significantly moderate the association between spousal loss and change in cognitive functioning. Specifically, relative to their counterparts, men and those who reported better marital relationships prior to spousal death had a greater risk of cognitive decline after a spouse’s death. The findings suggest the significance of pre-loss marital quality and gender for cognitive changes in widowhood and have implications for the development of efficient interventions

scholarly journals Neuroticism alters the transcriptome of the frontal cortex to contribute to the cognitive decline and onset of Alzheimer’s disease

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Céline H. De Jager ◽  
Charles C. White ◽  
David A. Bennett ◽  
Yiyi Ma
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Cognitive Decline ◽  
Brain Regions ◽  
Personality Characteristics ◽  
Tau Pathology ◽  
Postmortem Human Brain ◽  
Brain Transcriptome ◽  
Neo Five Factor Inventory ◽  
The Impact

AbstractAccumulating evidence has suggested that the molecular transcriptional mechanism contributes to Alzheimer’s disease (AD) and its endophenotypes of cognitive decline and neuropathological traits, β-amyloid (Aβ) and phosphorylated tangles (TAU). However, it is unknown what is the impact of the AD risk factors, personality characteristics assessed by the NEO Five-Factor Inventory, on the human brain’s transcriptome. Using postmortem human brain samples from 466 subjects, we found that neuroticism has a significant overall impact on the brain transcriptome (omnibus P = 0.005) but not the other four personality characteristics. Focused on those cognitive decline related gene co-expressed modules, neuroticism has nominally significant associations (P < 0.05) with four neuronal modules, which are more related to PHFtau than Aβ across all eight brain regions. Furthermore, the effect of neuroticism on cognitive decline and AD might be mediated through the expression of module 7 and TAU pathology (P = 0.008). To conclude, neuroticism has a broad impact on the transcriptome of human brains, and its effect on cognitive decline and AD may be mediated through gene transcription programs related to TAU pathology.

scholarly journals Places Visited, Maintained, or Abandoned Outside Home: A Community Mobility Need of Older Adults With Dementia

2020 ◽  
Vol 4 (Supplement_1) ◽  
pp. 673-673
Author(s):  
Isabel Margot-Cattin ◽  
Sophie Gaber ◽  
Nicolas Kuhne ◽  
Camilla Malinowski ◽  
Louise Nygard
Keyword(s):  
Older Adults ◽  
Cognitive Decline ◽  
Health Condition ◽  
Driving Cessation ◽  
Age In Place ◽  
Community Mobility ◽  
People With Dementia ◽  
The Uk ◽  
The Impact

Abstract For older adults to “age in place”, they need to keep engaged and mobile in their communities, whatever their health condition. The impact of age and cognitive decline on community mobility is a growing problem in Europe and worldwide. Engaging in occupations outside home implies being able to get to those places where activities are performed. Yet little is known regarding the types of places visited, maintained or abandoned for older adults with/without dementia. This study addresses community mobility needs through the places people visit, maintain or abandon. People with and without dementia, aged 55+, were interviewed using the Participation in ACTivities and Places OUTside the Home (ACT-OUT) questionnaire across Switzerland (n=70), Sweden (n=69) and the UK (n=128). Results show that people with dementia experience a higher rate of abandonment for more places than regular older adults. Insights about driving cessation and access to travel passes will be presented.

scholarly journals Gender Differences in 30-Day Re-Hospitalization Among Medicare Beneficiaries With Alzheimer’s and Dementia

2020 ◽  
Vol 4 (Supplement_1) ◽  
pp. 697-697
Author(s):  
Andrea Gilmore-Bykovskyi
Keyword(s):  
Gender Differences ◽  
Cognitive Decline ◽  
Primary Outcome ◽  
African American Men ◽  
White Men ◽  
National Sample ◽  
Medicare Beneficiaries ◽  
Index Hospitalization ◽  
The Impact ◽  
Racial Ethnic

Abstract Hospitalization is associated with accelerated cognitive decline for persons with Alzheimer’s disease and related dementia (ADRD), which disproportionately impacts women. Persons with ADRD are also at higher risk for 30-day rehospitalization, which may compound the impact of hospitalization-related exposures that precipitate decline. Evidence surrounding the intersections between gender and rehospitalization risk among diverse, representative populations with ADRD are lacking. This retrospective cohort study used a 100% national sample of Medicare beneficiaries with a diagnosis of ADRD and qualifying index hospitalization in 2014 (n= 1,033,144 unique beneficiaries and 1,672,238 unique stays). The primary outcome was rate of 30-day rehospitalization by gender and race. Within each racial group, men have higher rehospitalization rates than women: 2.6% higher among white men, 1.7% among African American men, and 2.6% higher among other racial/ethnic minorities. Findings highlight the importance of elucidating mechanisms underlying gender differences in hospital utilization and subsequent impact on cognitive decline.

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