Does Parkin Substrate Kick-Start Lewy Bodies?
Amyloids of AIMP2 found in Parkinson’s disease may seed α-synuclein aggregation.
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Amyloids of AIMP2 found in Parkinson’s disease may seed α-synuclein aggregation.
Among a growing number of blood-based tauopathy markers, this new immunoassay may offer a way to catch preclinical disease just before symptoms show up.
In mice, forebrain neurons with hobbled retromers ooze fragments of tau and several BACE1 substrates into the CSF. Similar proteins are up in CSF from people with MCI and Alzheimer’s disease.
The transcription factor NFATc2 mediates this response.
Restoring proper gene editing assuaged mitochondrial defects in patient-derived neurons and organoids. Splicing errors may underlie other PD cases as well.
The day-long advisory committee meeting will be broadcast live online. Prerecorded presentations are to be available November 4; the public can submit comments.
A recent genetics symposium drew positive reviews for its approach of following up prerecorded, on-demand talks with a live Q&A session.
Reducing levels of monounsaturated fatty acids lowered α-synuclein toxicity and prevented movement symptoms in mice. Scientists say the data boost the α-synuclein tetramer hypothesis.
Two papers report that skin samples from people with Parkinson’s disease contain α-synuclein seeds that can be robustly amplified, paving the way for a reliable test for the disease.
Armed with snazzy new hardware, scientists solve protein structures to a resolution of 1.22Å. Cryo-EM now rivals X-ray crystallography.
Three amino acid substitutions in the Aβ sequence accelerate BACE cleavage of APP and ramp up Aβ production in rats and mice. The mice can serve as better controls for mutant APP knock-ins already in use.
Simple lifestyle factors such as alcohol consumption and stool quality alter gut flora. Research on the microbiome and disease should account for those factors, a study reports.
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At CTAD, a Phase 2 open-label extension of this anti- Aβ protofibril antibody posted data as expected, and new Phase 3 trials for people with early and preclinical Alzheimer’s were described.
The anti-Aβ biologic will be put to the test in two stages of preclinical Alzheimer’s, designated by amyloid load. The long-dormant “est” PET tracer, NAV4694, is on board to make sensitive measurements.