this study directly compared the sensitivity of the caruncular artery ( ca ) of the isolated bovine placentome to phenylephrine ( pe ) , a specific alpha 1-adrenergic receptor ( ar ) agonist , with that to norepinephrine ( ne ) and epinephrine ( e ) , both of which are alpha 1- , alpha 2- , and beta-ar agonists , at two stages of gestation ( 140 to 170 d , mid-pregnant ; 210 to 270 d , late pregnant ) .
C0028351
norepinephrine
C0014563
epinephrine