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Brain
January 2025
Translational Neuroimaging Laboratory, Montreal Neurological Institute, H3A 2B4, Montreal, Canada.
Plasma phosphorylated tau biomarkers open unprecedented opportunities for identifying carriers of Alzheimer's disease pathophysiology in early disease stages using minimally invasive techniques. Plasma p-tau biomarkers are believed to reflect tau phosphorylation and secretion. However, it remains unclear to what extent the magnitude of plasma p-tau abnormalities reflects neuronal network disturbance in the form of cognitive impairment.
View Article and Find Full Text PDFNeurology
February 2025
School of Public Health and Preventive Medicine, Monash University, Melbourne, Australia.
Background And Objectives: Lipid metabolism in older adults is affected by various factors including biological aging, functional decline, reduced physiologic reserve, and nutrient intake. The dysregulation of lipid metabolism could adversely affect brain health. This study investigated the association between year-to-year intraindividual lipid variability and subsequent risk of cognitive decline and dementia in community-dwelling older adults.
View Article and Find Full Text PDFGerontologist
January 2025
Center for Health Equity Research and Promotion, Corporal Michael J. Crescenz Veterans Affairs Medical Center, Philadelphia, PA, USA.
Background And Objectives: The Housing and Urban Development-Veterans Affairs Supported Housing (HUD-VASH) program provides rental subsidies, case management, and supportive services to Veterans who are currently or formerly homeless, 77% of whom are ages ≥50. Few interventions have been developed to address the needs of older Veterans in HUD-VASH.
Research Design And Methods: We conducted a 2-stage study to inform the development of an intervention to promote aging in place in HUD-VASH.
PNAS Nexus
January 2025
Faculty of Health and Life Sciences, University of Exeter Medical School, University of Exeter, St Luke's campus, Exeter EX1 2LU, United Kingdom.
Apolipoprotein () genotype and nitric oxide (NO) deficiency are risk factors for age-associated cognitive decline. The oral microbiome plays a critical role in maintaining NO bioavailability during aging. The aim of this study was to assess interactions between the oral microbiome, NO biomarkers, and cognitive function in 60 participants with mild cognitive impairment (MCI) and 60 healthy controls using weighted gene co-occurrence network analysis and to compare the oral microbiomes between carriers and noncarriers in a subgroup of 35 MCI participants.
View Article and Find Full Text PDFDementia (London)
January 2025
Centre for Ageing Research and Translation, Faculty of Health, University of Canberra, Bruce, ACT, Australia.
Reminiscence is a meaningful activity for people with dementia, but research implementing digital reminiscence tools into environments with older people is not well developed. This project sought to understand the effectiveness of a digital reminiscence tool in aiding person-centred dementia care with people attending a day respite centre and a group residential home, in metropolitan eastern Australia. This study used semi-structured interviews and ethnographic observations using a qualitative reflexive thematic analysis with seventeen participants including people with dementia ( = 8), their loved ones ( = 5) and staff = 4) Themes identified were: 1.
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