Shiny SEQUIN: New Technique Counts Synapses Over Large Brain Volumes
Using a form of confocal microscopy and automated software, the method allows researchers to rapidly identify functional synapses within brain structures.
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Disadvantaged Neighborhoods Raise Odds of Alzheimer’s
People who lived in impoverished neighborhoods in their last year of life had greater odds of having died with AD neuropathology.
Does Common Structure Explain Cross-Seeding of Fibrils?
Islet amyloid protein and Aβ fibrils share similar folds.
RBFOX1 Gene Tied to Amyloidosis in Preclinical Alzheimer’s
Researchers used PET scans from 4,000 people to link RBFOX1 risk variants to amyloidosis. People with lower RBFOX1 expression in their brains had more amyloid and worse cognition.
Biogen Asks FDA To Approve Aducanumab
New drug application is first for Alzheimer’s disease in the U.S. since 2003, and first based on amyloid hypothesis.
Liver Enzyme Levitates with Exercise, Spurs Learning in Old Mice
The findings hint at a liver-brain axis that transmits inflammation from periphery to brain, and could suggest therapeutic targets for preserving brain function.
PET Tracer PI-2620 Detects 4R Tau Deposits
The tracer distinguished people with progressive supranuclear palsy from controls with a sensitivity of 85 percent, suggesting potential as a diagnostic for 4R tauopathies.
Cell-Type-Specific RNA Analysis Probes Selective Vulnerability in Huntington’s
In striatal spiny projection neurons with mutant huntingtin, mitochondria spill immunogenic RNAs into the cytosol. These touch off innate antiviral signaling inside the neurons, which may spell their demise.
In APP Knock-In Mice, Spatial Mapping Circuitry Crumbles
Poor coordination among grid cells in the entorhinal cortex and place cells in the hippocampus compromises navigation. Grid cells fail first.
Alzheimer's Association International Conference 2020 (Virtual Meeting Only)
Plasma p-Tau217 Set to Transform Alzheimer’s Diagnostics Could Common Vaccines Protect Against Alzheimer’s Disease? Doubling Down on Sequencing Serves up More Alzheimer’s Genes IDEAS Finds Small Drop in Hospitalizations, Missing Goal Lancet Commission’s D
Doubling Down on Sequencing Serves up More Alzheimer’s Genes
New genetic variants emerged by harmonizing whole-exome-sequencing data across continents, and by using imputation to plumb the depths of existing GWAS. One variant encodes a microglial phospholipid transporter.
IDEAS Finds Small Drop in Hospitalizations, Missing Goal
A slight drop in hospital admissions after amyloid PET, especially in people with positive scans, fell well short of the prespecified endpoint. Still, IDEAS is broadening into a research platform, and IDEAS 2 will add racial diversity.
Lancet Commission’s Dementia Hit List Adds Alcohol, Pollution, TBI
In updating their broad evaluation of the risk literature, the commission blamed three more modifiable factors for causing 6 percent of all dementia, concluding that 40 percent of cases can be prevented.
Heart Health Is Brain Health, and It Starts in Your 20s
New research pushes back the age at which dementia risk from cardiovascular and metabolic factors begins. Should protective lifestyle interventions start in youth?
FDA Accepts Aducanumab Application for Priority Review
The FDA will decide whether to approve the antibody as a treatment for Alzheimer’s disease on or before March 7, 2021.
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