People who report not participating in social or cognitive activities are more likely to develop dementia within the next few years, but not after that. The findings cast nonparticipation as a consequence, not a cause, of neurodegeneration.
Plaques abound, cytokines spike, microglia swell with lipids and send out spermine SOS signals in Denali model. Mice will be shared, allowing unrestricted use.
Among 14 familial Alzheimer’s APP mutations, two don’t change the Aβ42/Aβ40 ratio, but all of them yield long peptides of 45 to 49 residues that hide out in the membrane.