the in vitro release of luteinizing hormone-releasing hormone ( lhrh ) , prostaglandin ( pg ) e2 and leukotriene ( lt ) c4 from male rat median eminences ( me ) , was estimated by radioimmunoassay ( ria ) in the presence of the catecholamines ( ca ) , norepinephrine ( ne ) and dopamine ( da ) .
C0007412
catecholamines
C0013030
dopamine