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Science 27 March 1981:
Vol. 211. no. 4489, pp. 1454 - 1455
DOI: 10.1126/science.7466405
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Articles

Science, Vol 211, Issue 4489, 1454-1455
Copyright © 1981 by American Association for the Advancement of Science

articles

Estrogen receptors in the nidatory sites of the rat endometrium

D Martel and A Psychoyos

In ovariectomized rats treated with progesterone, implantation was induced by a minute dose of 17 beta-estradiol. Twenty-four hours later, the concentrations of estradiol receptor in nuclear and cytosol fractions prepared from the endometrium surrounding the blastocyst and the inter-implantation areas remained very low. This indicates that estrogen was not secreted by the blastocyst. The higher receptor content in cytosol from inter-implantation sites may reflect modifications accompanying the decidual reaction since our results show that there is no translocation of the receptor to the nuclei. The choice of the dye used to reveal the implantation sites is critical, since Trypan blue but not Evans blue binds steroids and thereby interferes with receptor measurements.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Leukaemia inhibitory factor receptor and gp130 in the human Fallopian tube and endometrium before and after mifepristone treatment and in the human preimplantation embryo.
K. Wanggren, P.G. Lalitkumar, F. Hambiliki, B. Stabi, K. Gemzell-Danielsson, and A. Stavreus-Evers (2007)
Mol. Hum. Reprod. 13, 391-397
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Estrogen receptors at implantation sites of rat endometrium.
F Logeat, P Sartor, M. Hai, and E Milgrom (1982)
Science 215, 1134-1135
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Estrogen Receptors at Implantation Sites of Rat Endometrium.
D. MARTEL and A. PSYCHOYOS (1982)
Science 215, 1135
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