Shoring up the tissues that separate neurons and other brain cells from the circulatory system in fruit flies and mice can prolong life in the presence of a tumor.
In both Drosophila and mosquitoes, protection lasts for generations following a single maternal exposure to positive-sense single-stranded RNA viruses.
In brain samples from people with Alzheimer’s disease, the protein aggregates more strongly bound proteins involved in processing RNA, the same study finds.