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
Tag: Alzheimer
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
Low Doses of Ionizing #Radiation as a Treatment for #Alzheimer’s Disease: A Pilot Study
In 2015, a patient in hospice with Alzheimer’s disease (AD) was treated with ionizing radiation to her brain using repeated CT scans. Improvement in cognition, speech, movement, and appetite was observed. These improvements were so momentous that she was discharged from the hospice to a long-term care home. Based on this case, we conducted a… Continue reading Low Doses of Ionizing #Radiation as a Treatment for #Alzheimer’s Disease: A Pilot Study
Clinical and Biological Correlates of White Matter Hyperintensities in Patients with #Behavioral-variant Frontotemporal #Dementia and #Alzheimer Disease
To test the hypothesis that white matter hyperintensities (WMH) in behavioral-variant frontotemporal dementia (bvFTD) and Alzheimer disease (AD) are associated with disease variables such as disease severity, cortical atrophy and cognition, we conducted a cross-sectional brain MRI study with volumetric and voxel-wise analyses. Methods: 129 patients (64 bvFTD, 65 AD) and 66 controls underwent high-resolution… Continue reading Clinical and Biological Correlates of White Matter Hyperintensities in Patients with #Behavioral-variant Frontotemporal #Dementia and #Alzheimer Disease
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