Functional identification of vagal afferent branch from the gastrointestinal organs by capsaicin administration in mice

In a mouse study, we identified input patterns from the gastrointestinal organs and liver to vagal afferents, with physiological evidence that there is no one-to-one correspondence between nerve branches and organs; multiple nerve branches receive inputs from a single organ. This new discovery is important as it contributes to elucidating the mechanisms of physiological function based on the vagal afferent pathway affected by nutrition, osmotic pressure, and hormones.