arginine vasopressin caused a marked antidiuretic response ( urinary osmolality increased from 118 to 739 mosmol/l ) which was accompanied by a significant increase in urinary prostaglandin excretion ( prostaglandin e2 and f2 alpha excretion increased by 182 and 441 % , respectively ) .
C0033554
prostaglandin
C0012472
prostaglandin e2