Assertion: prostaglandin's effect | /r/HasProperty | reversed by the addition of pge
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Source sentences:
text: Prostaglandins may be intermediates in the cyclic adenosine monophosphate (cAMP) signalling pathway because ovulation induced by forskolin or dibutyryl cAMP in PMSG-primed rats could be inhibited by indomethacin, an effect itself reversed by the addition of PGE 2 .51