guinea-pig gastric mucosal cells isolated by collagenase and pronase digestion were used to study the release of prostanoids prostaglandin i2 ( pgi2 ; measured as 6-keto pgf1 alpha ) , pge2 , pgf2 alpha and thromboxane a2 ( txa2 ; measured as txb2 ) .
C0033554
prostanoids
C0012472
pge2