the pg precursor arachidonic acid ( c20:4 ) , a natural pg endoperoxide ( pgg2 ) , two stable synthetic pg endoperoxide analogues ( epa i and ii ) , pge2 , pgf2alpha , and two different pg synthesis inhibitors [ indomethacin and 5,8,11,14-eicosatetraynoic acid ( eta ) ] were used to evaluate the possibility of a direct action of the cortical pg system on renin secretion .
C0012472
pge2
C0033554
pg