Factors associated with #eating performance in older adults with #dementia in long-term care facilities: a cross-sectional study

The purpose of this study was to investigate factors influencing eating performance in older adults with dementia (OAWDs) in long-term care (LTC) facilities. MethodsThis cross-sectional study examined risk factors for compromised eating performance by comparing both independent and dependent older adults with dementia. The study participants were 117 OAWDs in LTC facilities in South Korea.… Continue reading Factors associated with #eating performance in older adults with #dementia in long-term care facilities: a cross-sectional study

Reduced adaptation of glutamatergic #stress response is associated with #pessimistic expectations in #depression

Stress is a significant risk factor for the development of major depressive disorder (MDD), yet the underlying mechanisms remain unclear. Preclinically, adaptive and maladaptive stress-induced changes in glutamatergic function have been observed in the medial prefrontal cortex (mPFC). Here, we examine stress-induced changes in human mPFC glutamate using magnetic resonance spectroscopy (MRS) in two healthy… Continue reading Reduced adaptation of glutamatergic #stress response is associated with #pessimistic expectations in #depression

Number of #teeth and masticatory function are associated with #sarcopenia and #diabetes mellitus status among community-dwelling older adults: A Shimane CoHRE study

We aimed to examine the number of teeth and masticatory function as oral health indices and clarify their roles in the pathogenesis of sarcopenia and diabetes mellitus in community-dwelling older adults. Subjects and methodsThis cross-sectional study was conducted with 635 older adults in Ohnan, Shimane Prefecture, in rural Japan. The number of teeth and masticatory… Continue reading Number of #teeth and masticatory function are associated with #sarcopenia and #diabetes mellitus status among community-dwelling older adults: A Shimane CoHRE study

Consolidation of human #skill linked to waking hippocampo-neocortical replay

The introduction of rest intervals interspersed with practice strengthens wakeful consolidation of skill. The mechanisms by which the brain binds discrete action representations into consolidated, highly temporally-resolved skill sequences during waking rest are not known. To address this question, we recorded magnetoencephalography (MEG) during acquisition and rapid consolidation of a sequential motor skill. We report… Continue reading Consolidation of human #skill linked to waking hippocampo-neocortical replay

Reduced coupling between cerebrospinal fluid flow and global #brain activity is linked to #Alzheimer disease–related pathology

The glymphatic system plays an important role in clearing the amyloid-β (Aβ) and tau proteins that are closely linked to Alzheimer disease (AD) pathology. Glymphatic clearance, as well as Aβ accumulation, is highly dependent on sleep, but the sleep-dependent driving forces behind cerebrospinal fluid (CSF) movements essential to the glymphatic flux remain largely unclear. Recent… Continue reading Reduced coupling between cerebrospinal fluid flow and global #brain activity is linked to #Alzheimer disease–related pathology

A multicentre validation study of the diagnostic value of plasma #neurofilament light

Increased cerebrospinal fluid neurofilament light (NfL) is a recognized biomarker for neurodegeneration that can also be assessed in blood. Here, we investigate plasma NfL as a marker of neurodegeneration in 13 neurodegenerative disorders, Down syndrome, depression and cognitively unimpaired controls from two multicenter cohorts: King’s College London (n = 805) and the Swedish BioFINDER study (n = 1,464). Plasma… Continue reading A multicentre validation study of the diagnostic value of plasma #neurofilament light

Predicting #language treatment response in bilingual #aphasia using neural network-based patient models

Predicting language therapy outcomes in bilinguals with aphasia (BWA) remains challenging due to the multiple pre- and poststroke factors that determine the deficits and recovery of their two languages. Computational models that simulate language impairment and treatment outcomes in BWA can help predict therapy response and identify the optimal language for treatment. Here we used… Continue reading Predicting #language treatment response in bilingual #aphasia using neural network-based patient models

#Sleep difficulties, incident #dementia and all-cause mortality among older adults across 8 years: Findings from the National Health and Aging Trends Study

Sleep difficulties have been implicated in the development and progression of dementia and in all-cause mortality. This study examines the relationship between sleep difficulties, incident dementia and all-cause mortality over 8 years of follow-up among a nationally representative sample of older (≥65 years) adults in the United States. We used data collected from the National… Continue reading #Sleep difficulties, incident #dementia and all-cause mortality among older adults across 8 years: Findings from the National Health and Aging Trends Study

Randomized Manipulation of Early #Cognitive Experience Impacts Adult Brain Structure

Does early exposure to cognitive and linguistic stimulation impact brain structure? Or do genetic predispositions account for the co-occurrence of certain neuroanatomical phenotypes and a tendency to engage children in cognitively stimulating activities? Low socioeconomic status infants were randomized to either 5 years of cognitively and linguistically stimulating center-based care or a comparison condition. The… Continue reading Randomized Manipulation of Early #Cognitive Experience Impacts Adult Brain Structure