Simple vision tests in people with Parkinson's disease (PD) predicted who would develop dementia after 18 months. People who developed dementia had brain wiring losses in areas related to vision and memory.

A novel method to deliver regenerative factors to injured livers using a lipid nanoparticle-encapsulated messenger RNA. This could attenuate liver injury or damage from progressing into more severe stages of cirrhosis.

The compound benzoxazole, which extends lifespan in worms by up to 31%, is now found to also slow bone loss in mice, by slowing reabsorption of osteoclasts, cells that break down bone tissue.

In addition to benefiting sleep cycles, the hormone melatonin has also been shown to reduce kidney cysts in fruit flies, which could apply to treating humans with polycystic kidney disease.