[The first stages of ovum implantation in rats castrated before noon on the 5th day of gestation].
Ovariectomy performed on the 5th day of gestation before noon does not stop the first stages of ovoimplantation in the Rat. On the morning of the 6th day the reactivity to trypan blue is increased. Most of the blastocysts are well fixed in their implantation chamber. The closure of the uterine lumen is effective and the decidual reaction has developed around the blastocyst implantation chamber. These results are discussed and compared to morphological and physiological data. The hypotheses concerning the active role probably played by the blastocyst are also discussed.
D000818:Animals; D001755:Blastocyst / Q000502:physiology; D002369:Castration; D004247:DNA / Q000096:biosynthesis; D003656:Decidua / Q000033:anatomy & histology / Q000502:physiology; D010064:Embryo Implantation; D047108:Embryonic Development; D005260:Female; D005865:Gestational Age; D011247:Pregnancy; D051381:Rats; D013997:Time Factors; D014343:Trypan Blue
D004247:DNA; D014343:Trypan Blue
Déroulement des premiers stades de l'ovoimplantation chez des Rattes castrées le 5e jour de la gestation avant midi.