“In pulmonary artery with endothelium intact, preincubation with indomethacin, but not L-NG-monomethyl-L-arginine (L-NMMA ) or deferoxamine, antagonized the relaxant response to melatonin.”
“In pulmonary vein with endothelium intact, preincubation with indomethacin, but not L-NMMA or deferoxamine, antagonized the relaxant response to melatonin.”