In the nematode, a known RNA regulator that synchronizes development also controls life span through an insulin signaling pathway, suggesting a biological clock for aging.

When mammalian cells are starved of amino acids, a cellular organelle, the proteasome, degrades preexisting proteins to supply the amino acids needed for protein synthesis.

Two important enzymes that induce inflammation in mammals physically interact and augment each other's activity, providing a potential target for anti-inflammatory drugs.