The "designer cytokine" hyper-interleukin-6 reverses paralysis from spinal cord injuries in mice. Nerve cells were induced to produce hIL-6, delivering the blueprint into movement-controlling motoneurons.

Certain metabolites (small molecules that are byproducts of metabolism) may predict major depressive disorder (MDD). With 90% accuracy, researchers found a metabolic signature that predicts MDD relapse.

Macrophages of the immune system - cells that seek out and kill pathogens - are controlled by circadian rhythm, the 24-hour day-night cycle, which could have implications for disease treatment and vaccine efficacy.

Large study uncovers strong links between a person's diet, the microbes in their gut, and their health. These findings could be used to provide personalized dietary advice for better health, based on microbiome testing.