according to the results of experiments on in vivo administration of estradiol-17 beta , progesterone , hydrocortisone or hpl to intact or hypox-rats , and the measurement of serum rat chorionic mammotropin ( rcm ) , rprl , estradiol-17 beta , and insulin during pregnancy in rats , the increase in hepatic hpl binding sites observed in late pregnancy might be , at least in part , due to rcm secreted from placenta , and the decrease in insulin binding sites due to the increase in serum insulin itself in rats .
C0033308
progesterone
C0032961
pregnancy