An Antimicrobial Approach to Treating Alzheimer’s?
A periodontal pathogen found in human brains triggers AD pathology in mice. Will an antibiotic stave off dementia?
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Social Distancing Shutters Alzheimer’s Research
With experiments and careers on hold, scientists working from home are turning to virtual lab meetings and journal clubs to keep up morale.
Human Blood-Brain Barrier Model Blames Pericytes for CAA
When these tiny mural cells carried APOE4, they secreted more ApoE, causing Aβ to deposit in capillary walls. Blocking ApoE production prevented angiopathy.
Too Phatal: How Microglia, Astrocytes Snuff Out Dying Neurons
Live imaging of mouse brain reveals that microglia quickly engulf cell bodies while astrocytes dispose of the neuron’s more distal reaches. The cleanup crew tires with age.
Neither Exercise Nor Supplements Boost Cognition in Two Large Studies
In two trials, moderate exercise or supplements of omega-3 fatty acids and antioxidants failed to alter the course of cognitive decline in older adults.
Widely Used Tau Seeding Assay Challenged
According to a structural analysis, fluorescently tagged tau fragments cannot form paired helical filaments. This suggests the assay does not measure prion-like propagation.
Does Phosphorylation of Presenilin 1 Drive Microglial Migration, Aβ Clearance?
In mice with defective PS1 phosphorylation, microglial autophagy falters, exacerbating Aβ burden.
New MO for Purported Anti-Amyloid Drug: Shielding APP from BACE?
Imatinib, previously reported to inhibit γ-secretase, now appears to isolate APP from BACE as well.
Philadelphia: Can a Shrinking Brain Be Good for You?
Perhaps…yes? At first blush, this is the tentative conclusion one must draw if the results of presentations yesterday on Elan's vaccine...
Molecular Structure of LRRK2 Gives Clues to Parkinson’s
The first high-resolution look at LRRK2 implies that pathogenic mutations increase binding to microtubules by biasing the kinase domain toward a closed, active conformation.
In ALS and FTD, Two Different Routes to TDP-43 Aggregation
A C9ORF72 polydipeptide repeat induces aggregation by direct interaction with TDP-43, while progranulin mutations that trigger microglial toxicity cause TDP-43 to accumulate via complement.
Cancer Treatment Takes Aim at Tauopathy
Building on results in AD mouse models, researchers now report that immune checkpoint inhibitors reduce pathology and improve cognition in tauopathy mice, too. Other scientists are skeptical.
We Are What We Consume? Foods, Drugs Affect Amyloid, AD
A trend is afoot in Alzheimer disease research that is both potentially alarming and hopeful...
Of Four Aβ Antibodies, Only Aducanumab Stems Tide of Toxic Oligomers
While one anti-Aβ antibody thwarts initial seeding of fibrils, and others keep fibrils from lengthening, aducanumab prevents oligomers forming on their surface. In vitro, that is.
In Small Trial, EH301 Appears to Halt Progression of ALS
In a tiny pilot trial, people with amyotrophic lateral sclerosis who took a “cellular health and optimization” supplement were reported to have improved on several clinical outcome measures.
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