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. 1978 Jan 13;199(4325):200-1.
doi: 10.1126/science.579477.

Estrogen formation in the early rabbit embryo

F W George, J D Wilson

Estrogen formation in the early rabbit embryo

F W George et al. Science. .

Abstract

Androgen formation (3beta-hydroxysteroid dehydrogenase activity) was detectable in the rabbit blastocyst on day 5 of gestation (before implantation); estrogen formation was first detectable on day 7. The capacity to form estrogen on the day of implantation suggests that estrogen formation in the blastocyst may play a role in the implantation process.

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