Paper Alert: Trafficking Variants Cause BACE Buildup in Axons
In mice lacking the recycling protein GGA3, BACE1 trafficking stalls, local Aβ production increases, and axons swell. Does this explain the neuritic dystrophies seen in early AD?
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In mice lacking the recycling protein GGA3, BACE1 trafficking stalls, local Aβ production increases, and axons swell. Does this explain the neuritic dystrophies seen in early AD?
Quantifying 95 post-translational modifications of tau extracted from AD and control brains, a proteomics study proposes a “processive” model of phosphorylation, ubiquitination, acetylation that drive aggregation and map to distinct stages of disease.
Single-cell RNA sequencing of 16,000 live microglia freshly isolated from human brain reveals nine distinct subtypes. One fades in Alzheimer’s. Why?
Among people with early AD, the monoclonal antibody wiped out Aβ plaques and slowed cognitive and functional decline by a third, relative to placebo.
Disruption of the membraneless organelles may explain toxicity of tau aggregates.
The APP/PS1 double knock-ins begin to deposit amyloid in the brain by 3 months of age.
A large, cross-sectional study finds that RO-948 PET discriminates AD dementia from other disorders more accurately than do CSF biomarkers or MRI.
Harvard or MIT? The microbiomes of mice raised in different facilities dictated their response to C9 deficiency, including whether they died young. Do gut microbes influence ALS?
Built to cross the blood-brain barrier, the vehicle delivers therapeutic antibodies, enzymes, and potentially small molecules such as oligonucleotides.
Many Alzheimer’s trials had minimal dosing interruptions, but recruitment stopped for a time. Others trials fared worse, with some scrapped altogether. One administered study drug in an ambulance.
Sex-specific polygenic hazard scores predict pathology and cognitive decline.
Tissue from 13-week-old fetuses carrying the huntingtin repeat expansion shows defects in neuronal polarity and proliferation, which lead to fewer neurons populating some brain regions.
Homozygous carriers of GM17—a common IgG1 variant the HSV-1 virus has evolved to evade—had quadruple the risk of developing AD. In a small Swedish cohort, that is.
Phospholipase C-γ2 acts downstream of TREM2 to rev up beneficial inflammation, phagocytosis, and cell survival.
The R1279Q variant of angiotensin-converting enzyme associates with AD and causes neurodegeneration in mice. In a model of amyloidosis, it accelerates decline.