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Science 2 August 1974:
Vol. 185. no. 4149, pp. 444 - 445
DOI: 10.1126/science.185.4149.444
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Articles

Detection of a Gonadotropin in Rabbit Blastocyst before Implantation

F. Haour 1 and B. B. Saxena 1

1 Division of Endocrinology, Department of Medicine, Cornell University Medical College, New York 10021

A gonadotropin similar to human chorionic gonadotropin or luteinizing hormone has been demonstrated in rabbit blastocyst prior to implantation. The gonadotropin has been detected by a radioreceptor assay for human chorionic gonadotropin with the use of the plasma membranes of bovine corpora lutea obtained during the first trimester of pregnancy. The concentrations of the human chorionic gonadotropin or luteinizing hormone per milliliter of blastocyst fluid were tenfold higher than those in the blood of pregnant rabbits on days 5 and 6 after mating.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Prostaglandins in rabbit blastocyst.
Z Dickmann and C. Spilman (1975)
Science 190, 997-998
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Science. ISSN 0036-8075 (print), 1095-9203 (online)