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.
AMX0035, a mix of sodium phenylbutyrate and taurursodiol, slowed functional decline over six months by about as much as the approved ALS drug edaravone.
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.
P-tau217 appears sooner than p-tau181 in the brain, and it distinguishes AD from controls and other dementias even more cleanly.
Studies find that a drug in cough syrup can improve symptoms, and that radiation therapy safely shuts off a salivary gland.
In a tiny pilot trial, people with amyotrophic lateral sclerosis who took a “cellular health and optimization” supplement were reported to have improved on several clinical outcome measures.
The first steps of endocytosis faltered in astrocytes expressing ApoE4, but pumping in PICALM reversed the problem. A new study places two Alzheimer’s risk factors into the same cellular mechanism.
A survey of 16 purported conformation-specific antibodies found that most bound nearly equally well to oligomers and fibrils, and weakly to monomers.
Researchers have devised a way to measure how long ago a reporter transcript was made. It allows them to detect distinct transcriptional events within a cell.
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.
The transcription factor NFATc2 mediates this response.