Acute bouts of diarrhea could have lasting effects on the microbiota and host immune system activation, a mouse study suggests.

Researchers have been using ultrasound to control brain activity, but studies in mice and guinea pigs show it also stimulates the auditory system, presenting a confounder for direct neural stimulation.

Researchers used a trio of transcription factors to transform pancreatic duct cells in vivo into β-like cells that secrete insulin and improve diabetes symptoms.

Mice who get less attention from their mothers have more copies of a common retrotransposon in the genomes of their hippocampal neurons.

A new study reveals that a constant stream of ink-gobbling immune cells helps hold tattoos in place.

Signaling pathways triggered by the mother’s immune system may cause complications during fetal development.

A byproduct of alcohol consumption causes mutations in the DNA of mouse blood stem cells, and some of the breaks are not repaired.

Mice receiving the treatment produced their own monoclonal antibodies and survived infection with the life-threatening pathogen Pseudomonas aeruginosa.

A study traces proteins’ evolution from the immune to the olfactory system.

E. coli that make indoles protect older worms, flies, and mice from frailty.