THE ROLE OF PROTEIN SYNTHESIS IN EARLY ESTROGEN ACTION

Abstract
The administration of puromycin to ovariectomized rats blocked uterine protein synthesis in vivo without inhibition of phos-pholipid or ribonucleic acid synthesis. Under the same conditions, puromycin treatment also prohibited the early acceleration of phos-pholipid and ribonucleic acid synthesis by estradiol and prevented the hormone-induced imbibition of water in the uterus. The essentiality of protein synthesis for early estrogen action is discussed.