Corticosterone interferes with signaling in the skin that normally activates hair follicle stem cells, possibly explaining the link between stress and hair loss.

A study that compared several anesthetic regimens in rodents showed that only one—inhaled isoflurane—wasn’t detrimental to the activity of neurons in the hippocampus.

Altered gut microbiome composition in obese mice and human patients is linked with severity of disease after bone marrow transplantation, a study found.

Manipulating the activity of neurons active during training had similar effects on the mice’s behavior.

Neurological representations of different tastes—like those of different smells but unlike those of sight, hearing, and touch—do not cluster in distinct spots within a murine brain region, a study shows.

Researchers determined that when introduced into damaged mouse or donated human livers, these lab-grown tissues could integrate into bile ducts and function normally.

The effects seem to be mediated by a reactive oxygen species in the animals’ livers.

The results add to mounting evidence of microbes’ roles in tumor growth and point to the possibility of impeding malignancies by inhibiting bacteria.

In mice, the brain’s main glial cell type exhibits distinctive patterns of activity across the sleep-wake cycle and influences the response to sleep deprivation.