Introducing the Coarse-Grained Plaque—A New Type of Amyloid
Comprising mostly Aβ40, these large plaques are shot through with strange tubular structures and BBB markers. They are common in early onset AD.
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Comprising mostly Aβ40, these large plaques are shot through with strange tubular structures and BBB markers. They are common in early onset AD.
Three studies agree that TMEM106b/progranulin double knockouts develop more extreme lysosomal dysfunction, inflammation, and motor deficits than PGRN KOs.
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.
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.
Carriers of a rare hypomorphic gene variant develop a frontotemporal dementia that features Alzheimer’s-like neurofibrillary tangles.
Expert panel concludes there’s little risk based on current evidence.
The R1279Q variant of angiotensin-converting enzyme associates with AD and causes neurodegeneration in mice. In a model of amyloidosis, it accelerates decline.
TRP cation channels combine with extrasynaptic NMDA glutamate receptors to set off mitochondrial meltdown and cell death. Blocking the interaction stops excitotoxicity.
Technical limitations may have misrepresented the transcriptional state of these cells, obscuring detection of their activation signature in frozen postmortem tissue from Alzheimer’s brain.
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.
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.
Most pathways that emerged were common between African Americans and non-Hispanic whites, though some individual variants differed. Kidney development jumped out as a possibly unique aspect of AD in African Americans.
Armed with snazzy new hardware, scientists solve protein structures to a resolution of 1.22Å. Cryo-EM now rivals X-ray crystallography.
A survey of 16 purported conformation-specific antibodies found that most bound nearly equally well to oligomers and fibrils, and weakly to monomers.
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