Exogenous oxytocin reverses the decrease of colonic smooth muscle contraction in antenatal maternal hypoxia mice via ganglia

► The proximal colonic smooth muscle contraction decreased in antenatal maternal hypoxia mice. ► OT increased the contractions. ► Hexamethonium blocked the OT-induced potentiation. ► OT reverses the decreased contraction of proximal colon in antenatal maternal hypoxia mice via ganglia.