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    Chapter

    Mammalian Placentation: A Tribute to E.C. Amoroso’s Contributions to Placenta Development

    Establishment of viviparity in mammals evolved through not only the long-term retainment of the fetus within the maternal uterus but differentiation and expansion of cell layers to form functional membranes to...

    Rodney D. Geisert, Thomas E. Spencer in Placentation in Mammals (2021)

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    Chapter

    Implantation and Placentation in Ruminants

    In comparison to many other mammalian species, ruminant ungulates have a unique form of placentation. Ruminants initially display an epitheliochorial type of placentation; however, during the period of placent...

    Jonathan A. Green, Rodney D. Geisert, Greg A. Johnson in Placentation in Mammals (2021)

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    Chapter and Conference Paper

    Cytokines and Pregnancy Recognition

    Maternal recognition of pregnancy results from signaling between the trophoblast of the conceptus (embryo and associated membranes) and the maternal system (1). These signals ensure maintenance of the structur...

    Fuller W. Bazer, Thomas E. Spencer, Troy L. Ott in Immunobiology of Reproduction (1994)