When these tiny mural cells carried APOE4, they secreted more ApoE, causing Aβ to deposit in capillary walls. Blocking ApoE production prevented angiopathy.
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.
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.
According to a structural analysis, fluorescently tagged tau fragments cannot form paired helical filaments. This suggests the assay does not measure prion-like propagation.
In mice with defective PS1 phosphorylation, microglial autophagy falters, exacerbating Aβ burden.
Imatinib, previously reported to inhibit γ-secretase, now appears to isolate APP from BACE as well.
Perhaps…yes? At first blush, this is the tentative conclusion one must draw if the results of presentations yesterday on Elan's vaccine...
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.
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.
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.
A trend is afoot in Alzheimer disease research that is both potentially alarming and hopeful...
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 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.
In mice, accumulation of tau in hilar astrocytes of the dentate gyrus spells trouble for the hippocampus and for spatial memory.
Data shown at AAT-AD/PD explain why the DIAN-TU trial missed its primary endpoint. But gantenerumab strongly reduced plaques, tau, phospho-tau, and slowed NfL. This result prompted an open-label extension, sustaining hope for efficacy.