Summary of earlier studies
A review proposes a link between two brain proteins and aging-related memory loss
This review looks at two brain proteins that help control inhibitory connections between nerve cells. It suggests they may work together in brain aging, but this idea is not yet proven.
Animals
Copper and iron help yeast cells survive in different ways
Researchers studied yeast cells that were short on food. Copper and iron both helped cells survive, but through different cell signals. This is early lab work, so it does not show what happens in people.
People
Low-dose rapamycin appeared safe over one year in healthy adults
A trial gave people weekly rapamycin or a placebo for 48 weeks and checked side effects and blood tests. Some measures improved in certain groups, but the researchers say more work is needed.