Age-related disturbances in rest-activity rhythms and integrity of the hippocampal network: An exploratory study.

To better understand the relationship between the rest-activity rhythms and cognitive impairments during aging, we assessed the longitudinal changes in the rest-activity rhythms in an elderly population and their possible detrimental effect on the hippocampal network. This was done longitudinally in a rural cohort with two actigraphic assessments and brain imaging examinations, seven years apart. A segmentation of the hippocampus and its related structures was used to assess volumes and functional connectivity in this network based on anatomical and resting state functional data.

Association between herpes simplex virus infection and Alzheimer's disease biomarkers: analysis within the MAPT trial.

In vitro and animal studies have suggested that inoculation with herpes simplex virus 1 (HSV-1) can lead to amyloid deposits, hyperphosphorylation of tau, and/or neuronal loss. Here, we studied the association between HSV-1 and Alzheimer's disease biomarkers in humans. Our sample included 182 participants at risk of cognitive decline from the Multidomain Alzheimer Preventive Trial who had HSV-1 plasma serology and an amyloid PET scan.

Association between self-reported and proxy informant Health Quality of life of older adults with the use of antipsychotic drugs in nursing homes. A cross-sectional study.

Introduction: Antipsychotic prescriptions are frequent in nursing homes due to the challenging management of symptoms associated with Alzheimer's disease and related neurodegenerative disorders. This study aimed to assess the association between Health-related Quality Of Life (HrQOL) and antipsychotic use in nursing homes.

Methods: This is a cross-sectional study of the KASEHPAD (Karukera Study of Ageing in Nursing Homes) study conducted in six nursing homes in Guadeloupe and Martinique (French West Indies).

Clinical profiles of older adults in French Caribbean nursing homes: a descriptive cross-sectional study.

Background: Nursing homes in the Caribbean are scarce and the characteristics of their residents have not been previously documented. This study aimed to describe the clinical profiles of residents living in nursing homes in Guadeloupe and Martinique (French West Indies).

Methods: This is a cross-sectional study of the baseline screening data from the KASEHPAD (Karukera Study of Ageing in nursing homes) study.

Clinical Characteristics of Older Adults Living in Foster Families in the French West Indies: Baseline Screening of the KArukera Study of Aging in Foster Families (KASAF) Cohort.

Background And Objectives: Foster families for older adults could represent a transitional or alternative model to nursing homes. The aim of this study was to describe the clinical characteristics of older adults in foster families and to compare them with those of residents in nursing homes in French West Indies.

Research Design And Methods: This study is a cross-sectional analysis of the KArukera Study of Aging in Foster Families (KASAF) cohort.

Malnutrition and its determinants among older adults living in foster families in Guadeloupe (French West Indies). A cross-sectional study.

Background: Foster families may represent an alternative model for dependent older adults in many countries where nursing homes are insufficiently developed. This study aimed to assess the prevalence of malnutrition and its determinants in older adults living in foster families in Guadeloupe (French West Indies).

Methods: This cross-sectional study was gathered from the KASAF (Karukera Study of Ageing in Foster families) study (n = 107, 41M/66F, Mdn 81.

Validity and diagnostic performance of a virtual reality-based supermarket application "MEMOSHOP" for assessing episodic memory in normal and pathological aging.

Objective: MEMOSHOP is a virtual reality (VR)-based supermarket application for assessing episodic memory in aging. The aim of this study was to examine its construct validity against the gold standard paper-and-pencil neuropsychological test for clinical memory assessment in mild cognitive impairment (MCI) in older adults.

Methods: Patients with isolated subjective cognitive complaints (SCCs) or MCI were recruited in the Bordeaux Memory Clinic (MEMENTO cohort).

The role of cardiovascular health and vascular events in the relationship between excessive daytime sleepiness and dementia risk.

Many studies suggest a relationship between excessive daytime sleepiness (EDS) and dementia incidence, but the underlying mechanisms remain uncertain. The study aimed to investigate the role of cardiovascular burden in the relationship between EDS and dementia incidence over a 12-year follow-up in community-dwelling older adults. We performed analyses on 6171 subjects (aged ≥65 years) free of dementia and vascular disease at baseline.

Tools for assessing social isolation and feelings of loneliness in older adults: a systematic review.

Older adults who are socially isolated or who feel lonely have a higher risk of morbidity and mortality. It is important to be able to assess them with efficient tools. The objective was to describe tools for assessing feelings of loneliness (FoL) and social isolation (SI) in older adults, and to estimate their prevalence.

Comparison of mortality and hospitalizations of older adults living in residential care facilities versus nursing homes or the community. A systematic review.

Residential care facility may provide a transition between living at home and a nursing home for dependent older people or an alternative to nursing homes. The objective of this review was to compare mortality and hospitalizations of older adults living in residential care facilities with those living in nursing homes or in the community. We searched Medline, Scopus and Web of Science from inception to December 2022.

Health trajectories of elderly living in French senior housing: a longitudinal perspective.

Senior housing for older adults could be an alternative or a transitional care model between home care and nursing home care. Using two longitudinal cohorts of community dwellers aged 65 years or older, we compared risks of mortality and of nursing homes admission between older adults who did or did not move to senior housing over time. In the 3C study (n = 2104, 17 years of follow-up), 143 (6.

Correlates of Health-Related Quality of Life in Community-Dwelling Older Adults in Guadeloupe (French West Indies): Results from the KASADS Study.

Objectives: The aim of this study was to determine the correlates of health-related quality of life (HRQoL) in community-dwelling older adults in Guadeloupe.

Methods: We used the Karukera Study of Aging-Drugs Storage (KASADS), an observational, cross-sectional study on community-dwelling older people living in Guadeloupe. A visual analogue scale ranging from 0 to 100 was used to assess HRQoL.

The Health Care Trajectories of Older People in Foster Families: Protocol for an Observational Study.

Background: With aging of the population, the search for alternative models of care adapted to older people with dependency is necessary. In this setting, foster families (1-3 older people per family) could be an alternative to nursing homes, residential care facilities, or community- and home-based care.

Objective: The KArukera Study of Ageing in Foster Families is a prospective cohort study designed to investigate the care pathways of older people with dependency in foster care over a year.

Heritable defects in telomere and mitotic function selectively predispose to sarcomas.

Cancer genetics has to date focused on epithelial malignancies, identifying multiple histotype-specific pathways underlying cancer susceptibility. Sarcomas are rare malignancies predominantly derived from embryonic mesoderm. To identify pathways specific to mesenchymal cancers, we performed whole-genome germline sequencing on 1644 sporadic cases and 3205 matched healthy elderly controls.

Exome sequencing identifies rare damaging variants in ATP8B4 and ABCA1 as risk factors for Alzheimer's disease.

Alzheimer's disease (AD), the leading cause of dementia, has an estimated heritability of approximately 70%. The genetic component of AD has been mainly assessed using genome-wide association studies, which do not capture the risk contributed by rare variants. Here, we compared the gene-based burden of rare damaging variants in exome sequencing data from 32,558 individuals-16,036 AD cases and 16,522 controls.

Factors associated with verbal fluency in older adults living with HIV in West Africa: A longitudinal study.

Objective: Verbal fluency decline, observed both in aging and HIV infection, has been related to lower quality of life. This study aimed to evaluate the factors associated with categorical fluency in people living with HIV (PLHIV) aged ≥60 years living in West Africa.

Methods: In this longitudinal study, PLHIV aged ≥60 years, on antiretroviral therapy (ART) for ≥6 months were included in three clinics (two in Côte d'Ivoire, one in Senegal) participating in the West Africa International epidemiological Databases to Evaluate AIDS (IeDEA) collaboration.

Self-reported visual impairment and sarcopenia among older people in Cameroon.

Aging has been clearly associated with decline in visual and physical performance. Alteration of visual function is associated with negative health outcomes including physical frailty. We assessed the relationship between Visual Impairment (VI) and sarcopenia in older persons in Cameroon.

Trajectories of sleep duration and timing before dementia: a 14-year follow-up study.

Background: given the complex relationship between sleep and neurodegenerative processes, it is important to examine whether changes in sleep patterns occur prior or close to dementia onset.

Objective: to examine the relationship between sleep parameters and dementia incidence and, to characterize trajectories of sleep patterns before dementia diagnosis.

Design: a 14-year longitudinal study including a nested case-control study.

The "Alzheimer Village": Assessment of Alzheimer's disease representations in the general population: A cross sectional phone survey.

Introduction: In most countries, the societal view of Alzheimer's disease (AD) is very negative. The initiatives that are part of the so-called "dementia-friendly approach" aim not only at promoting well-being and dignity of persons suffering from AD but also improving the way they are regarded and their inclusion in society. Unfortunately, scarce research has been conducted to assess whether such goals can be achieved.

Prodromal characteristics of dementia with Lewy bodies: baseline results of the MEMENTO memory clinics nationwide cohort.

Background: Isolated subjective cognitive impairment (SCI) and mild cognitive impairment (MCI) are the prodromal phases of dementia with Lewy bodies (DLB). MEMENTO is a nationwide study of patients with SCI and MCI with clinic, neuropsychology, biology, and brain imaging data. We aimed to compare SCI and MCI patients with symptoms of prodromal DLB to others in this study at baseline.

The association between oral health and nutritional status in older adults: a cross-sectional study.

Objectives: This work aimed to describe the nutritional status of French older adults (age ≥ 90 years) and studied the association between oral health and nutritional status.

Methods: A cross-sectional study was carried out in 2014 among the participants of a cohort on cerebral and functional aging in France at their 25-year follow up (the PAQUID cohort). Nutritional status (Mini Nutritional Assessment [MNA]) and oral health status (number of decayed, missing, and filled teeth [DMFT], number of posterior occluding pairs, xerostomia [Xerostomia Inventory], and prosthetic rehabilitation) were recorded at the participants' living places by two dentists.

New insights into the genetic etiology of Alzheimer's disease and related dementias.

Characterization of the genetic landscape of Alzheimer's disease (AD) and related dementias (ADD) provides a unique opportunity for a better understanding of the associated pathophysiological processes. We performed a two-stage genome-wide association study totaling 111,326 clinically diagnosed/'proxy' AD cases and 677,663 controls. We found 75 risk loci, of which 42 were new at the time of analysis.