In Tauopathy, ApoE Destroys Neurons Via Microglia
Ablating the immune cells protected mouse models of frontotemporal dementia from the neurodegeneration caused by human ApoE4.
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Ablating the immune cells protected mouse models of frontotemporal dementia from the neurodegeneration caused by human ApoE4.
The first ever cryoEM structures of Aβ fibrils extracted from AD tissue look quite different than prior structures of fibrils generated in vitro. For starters, they are right-hand twisted, not left-hand.
Imaging studies suggest that ApoE4 carriers may be more susceptible to the effects of tangles, particularly if they are women.
The cells are primed to attack. Their targets include Epstein-Barr virus peptides.
Aβ oligomers latch onto adrenergic receptors, mobilizing a kinase that phosphorylates tau. Blocking adrenergic signaling wards off memory problems in amyloidosis mice.
Functional connections between two brain regions are the strongest indicator that pathologic, accumulated tau will spread from one to another.
Two studies reveal new aspects of the neurovascular physiology that regulate the flow of oxygenated blood into the brain’s arterioles and capillaries in response to neuronal stimulation.
Under diabetic conditions, SERP1 binds secretase subunit, cranking up cleavage of APP but not Notch. The finding offers a mechanistic link between diabetes and Alzheimer’s.
In nonhuman primates, three classes of LRRK2 kinase inhibitor cause microscopic changes in lung morphology, but they are reversible and do not impair breathing. Parkinson’s programs remain on track.
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.