FDA Advisors Will Take up Aducanumab on November 6
The day-long advisory committee meeting will be broadcast live online. Prerecorded presentations are to be available November 4; the public can submit comments.
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Of Four Aβ Antibodies, Only Aducanumab Stems Tide of Toxic Oligomers
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.
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.
Nixing TMEM106b Fans the Flames of Progranulin Deficiency
Three studies agree that TMEM106b/progranulin double knockouts develop more extreme lysosomal dysfunction, inflammation, and motor deficits than PGRN KOs.
Protective AD Variant Pinpoints Sweet Spot for Microglial Activation
Phospholipase C-γ2 acts downstream of TREM2 to rev up beneficial inflammation, phagocytosis, and cell survival.
Could Contaminated Scalpels Seed Amyloidosis?
A panel of experts concludes the evidence for this scary prospect is weak, but recommends neurosurgeons use separate neurosurgical instruments for young and old patients. The experts called for further studies.
In Preclinical Alzheimer’s, Learning Falters Before Memory
Learning tests may prove more informative in clinical trials of early AD. A new one claims it can spot a difference in six days.
Mutation in the Parkinson’s Gene DJ-1 Derails Splicing
Restoring proper gene editing assuaged mitochondrial defects in patient-derived neurons and organoids. Splicing errors may underlie other PD cases as well.
Micro Nudge? Positive Phase 2 Results for ALS Combination Drug
AMX0035, a mix of sodium phenylbutyrate and taurursodiol, slowed functional decline over six months by about as much as the approved ALS drug edaravone.
In ALS and FTD, Two Different Routes to TDP-43 Aggregation
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.
Peter Davies, Beloved Giant of Alzheimer’s Disease Research, Dies at 72
In a career spanning four decades, Davies spearheaded the cholinergic hypothesis, unlocked secrets of tau, and readily shared antibodies in the field.
CPTX—A Synaptic “Glue” Restores Memory in Alzheimer’s Model
The designer chimera stabilizes synapses in various mouse models of neurodegenerative disease.
IFITM3 Forges Link Between Neuroinflammation and Aβ Production
The antiviral protein enhances γ-secretase processing of APP. More of it is present in Alzheimer’s disease.
Global Genetics Symposium Starts Today
Three weeks of on-demand seminars to culminate in live Q&A.
First Primate Model of Familial AD: Marmosets with Presenilin Mutation
Three young monkeys missing exon 9 of presenilin 1 seem to have an elevated Aβ42/40 ratio. It remains to be seen if they will develop plaques and tangles as they age.
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