Carriers accumulate fewer tangles than noncarriers for a given amount of amyloid, explaining how the gene variant may lower a person’s Alzheimer’s risk.
In the mouse retina, these tender threads connect pericytes on nearby capillaries. They enable cells to coordinate constriction and dilation of blood vessels in response to neuronal activity.
Without the WD domain of Atg16L1, required for a newly discovered type of endocytosis, old mice develop hallmark pathologies of AD.
Dendritic tau suppresses production of nitric oxide, which prevents blood vessels from dilating in response to neural activity.
In mice with defective PS1 phosphorylation, microglial autophagy falters, exacerbating Aβ burden.
Grown on doughnut-shaped supports, the cultures survive for years. They offer a versatile system for studying Alzheimer’s disease, the authors claim.
The FDA will decide whether to approve the antibody as a treatment for Alzheimer’s disease on or before March 7, 2021.
In the Alzheimer’s brain, too, plaques trigger a coordinated inflammatory response from microglia and astrocytes. A preprint paper had shown the same for mice.
Three weeks of on-demand seminars to culminate in live Q&A.
In female mice it’s the other X chromosome, not lack of a Y, that extends life and preserves memory in the face of amyloidosis. A histone demethylase gene partly explains this. It protects people, too.
A 2018 report that had spotted extra copies of APP lurking in neuronal genomes has come under scrutiny, with claims that the result is due to contamination. Does a response from the original authors bolster their claim?
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.
Restoring proper gene editing assuaged mitochondrial defects in patient-derived neurons and organoids. Splicing errors may underlie other PD cases as well.
The antiviral protein enhances γ-secretase processing of APP. More of it is present in Alzheimer’s disease.