Detection of a Gonadotropin in Rabbit Blastocyst before Implantation
- 2 August 1974
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 185 (4149), 444-445
- https://doi.org/10.1126/science.185.4149.444
Abstract
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.Keywords
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