Gut Feeling: Sensory cells of the mouse intestine let the brain know if certain compounds are present by speaking directly to gut neurons via serotonin.
Mouse intestineWIKIMEDIA, KELVINH88 The intestine tells the brain about the contents of the gut. But insights into the molecular mechanics of this gut-brain conversation have been stalled by technical limitations. Now, examinations of a key type of gut sensory cell within mouse intestinal organoids and tissue sections have revealed which molecular signals activate these…