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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)

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    Chapter and Conference Paper

    Regulation of Endometrial Responsiveness to Estrogen and Progesterone by Pregnancy Recognition Signals During the Periimplantation Period

    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 structural a...

    Fuller W. Bazer, Thomas E. Spencer in Molecular and Cellular Aspects of Periimpl… (1995)

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    Chapter

    Uterine Glands

    This chapter focuses on the comparative development and mechanisms regulating branching morphogenesis of endometrial glands in the mammalian uterus. All uteri contain endometrial glands that secrete substances...

    Thomas E. Spencer, Karen D. Carpenter, Kanako Hayashi, Jianbo Hu in Branching Morphogenesis (2006)

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    Chapter

    The Evolutionary Interplay Between Exogenous and Endogenous Sheep Betaretroviruses

    Sheep betaretroviruses represent an interesting model to study the ­complex evolutionary interplay between host and pathogen in natural settings. In infected sheep, the exogenous and pathogenic Jaagsiekte shee...

    Alessia Armezzani, Lita Murphy, Thomas E. Spencer in Viruses: Essential Agents of Life (2012)

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    Chapter

    Implantation and Establishment of Pregnancy in Ruminants

    The establishment of pregnancy in ruminants occurs during the peri-implantation period and involves the suppression of the endometrial luteolytic mechanism to maintain progesterone production by the corpus lut...

    Thomas E. Spencer, Thomas R. Hansen in Regulation of Implantation and Establishme… (2015)

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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)