since immunoreactive prostaglandin e2 levels following in vivo equilibrium dialysis of feces ranged from 555 to 650 pg/ml vs 55 to 235 pg/ml ( 99 % confidence limits ) in healthy controls , it is speculated that prostaglandins synthesized locally in response to mucosal hypoxia might be the mediators of anion secretion .
C0012472
prostaglandin e2
C0033554
prostaglandins