While some individuals age without pathological memory impairments, others develop age-associated cognitive diseases. Since changes in cognitive function develop slowly over time in these patients, they are often diagnosed at an advanced stage of molecular pathology, a time point when causative treatments fail. Thus, there is great need for the identification of inexpensive and minimal… Continue reading A microRNA signature that correlates with cognition and is a target against #cognitive decline
Tag: Alzheimer
Synthesis of human #amyloid restricted to #liver results in an #Alzheimer disease–like neurodegenerative phenotype
Several lines of study suggest that peripheral metabolism of amyloid beta (Aß) is associated with risk for Alzheimer disease (AD). In blood, greater than 90% of Aß is complexed as an apolipoprotein, raising the possibility of a lipoprotein-mediated axis for AD risk. In this study, we report that genetic modification of C57BL/6J mice engineered to… Continue reading Synthesis of human #amyloid restricted to #liver results in an #Alzheimer disease–like neurodegenerative phenotype
Spatial organization of #protein aggregates on red #blood cells as physical biomarkers of #Alzheimer’s disease pathology
Quantifying physical differences of protein aggregates implicated in Alzheimer’s disease (AD), in blood, could provide crucial information on disease stages. Here, red blood cells (RBCs) from 50 patients with neurocognitive complaints and 16 healthy individuals were profiled using an atomic force microscope (AFM). AFM measurements revealed patient age– and stage of neurocognitive disorder–dependent differences in… Continue reading Spatial organization of #protein aggregates on red #blood cells as physical biomarkers of #Alzheimer’s disease pathology
Analysis of Features of #Alzheimer’s Disease: Detection of Early Stage from Functional Brain Changes in Magnetic #Resonance Images Using a Finetuned ResNet18 Network
One of the first signs of Alzheimer’s disease (AD) is mild cognitive impairment (MCI), in which there are small variants of brain changes among the intermediate stages. Although there has been an increase in research into the diagnosis of AD in its early levels of developments lately, brain changes, and their complexity for functional magnetic… Continue reading Analysis of Features of #Alzheimer’s Disease: Detection of Early Stage from Functional Brain Changes in Magnetic #Resonance Images Using a Finetuned ResNet18 Network
#Cognitive Activity and Onset Age of Incident #Alzheimer Disease #Dementia
To test the hypothesis that higher level of cognitive activity predicts older age of dementia onset in Alzheimer's disease (AD) dementia. Methods: As part of a longitudinal cohort study, 1,903 older persons without dementia at enrollment reported their frequency of participation in cognitively stimulating activities. They had annual clinical evaluations to diagnose dementia and AD,… Continue reading #Cognitive Activity and Onset Age of Incident #Alzheimer Disease #Dementia
#Dementia risks identified by vocal features via #telephone conversations: A novel machine learning prediction model
Due to difficulty in early diagnosis of Alzheimer’s disease (AD) related to cost and differentiated capability, it is necessary to identify low-cost, accessible, and reliable tools for identifying AD risk in the preclinical stage. We hypothesized that cognitive ability, as expressed in the vocal features in daily conversation, is associated with AD progression. Thus, we… Continue reading #Dementia risks identified by vocal features via #telephone conversations: A novel machine learning prediction model
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
The Effects of Chronic Exposure to Ambient #Traffic-Related Air #Pollution on #Alzheimer’s Disease Phenotypes in Wildtype and Genetically Predisposed Male and Female Rats
Epidemiological data link traffic-related air pollution (TRAP) to increased risk of Alzheimer’s disease (AD). Preclinical data corroborating this association are largely from studies of male animals exposed acutely or subchronically to high levels of isolated fractions of TRAP. What remains unclear is whether chronic exposure to ambient TRAP modifies AD risk and the influence of… Continue reading The Effects of Chronic Exposure to Ambient #Traffic-Related Air #Pollution on #Alzheimer’s Disease Phenotypes in Wildtype and Genetically Predisposed Male and Female Rats
#Mediterranean Diet, #Alzheimer Disease Biomarkers and #Brain Atrophy in Old Age
To determine if following a Mediterranean-like diet (MeDi) relates to cognitive functions and in vivo biomarkers for Alzheimer’s disease (AD), we analyzed cross-sectional data from the German Longitudinal Cognitive Impairment and Dementia Study Method: The sample (n=512, mean age: 69.5±5.9 years) included 169 cognitively normal participants and subjects at higher AD risk (53 AD relatives,… Continue reading #Mediterranean Diet, #Alzheimer Disease Biomarkers and #Brain Atrophy in Old Age
