antigen-induced release of a prostaglandin-like substance ( pgs ) ( 43.1 +/- 3.8 ng/ml in terms of pge2 and a rabbit aorta contracting substance ( rcs ) from perfused lungs of sensitized guinea pigs was completely abolished by indomethacin ( 5 mug/ml ) or by hydrocortisone ( 100 mug/ml ) .
C0033554
prostaglandin
C0012472
pge2