Buttons A. Foster

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Progesterone is a key hormone in reproduction and plays a crucial regulatory role during the oestrous cycle and pregnancy. The effect of progesterone on the developmental competence of bovine oocytes is yet to be fully understood. Molecular tools might provide further information on the role of progesterone on expression of developmentally important genes.(More)
While vitrification has become a valuable system used in oocyte and embryo preservation, there is still much to be learned in optimizing this protocol. Both mature and immature oocytes can be vitrified but each presents challenging aspects. Mature oocytes have microfilaments that are not yet developed in immature oocytes, which are fragile and may be(More)
Although vitrification is becoming increasingly common for oocyte preservation, there has been recent evidence that some cryoprotectants may alter DNA methylation and so result in decreased oocyte developmental competence and abnormal embryonic development post-warming. The objective of this study was to determine the effect of dimethyl sulfoxide (DMSO)- or(More)
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