Assessment of a new in vitro maturation system for mouse and human cumulus-enclosed oocytes: three-dimensional prematuration culture in the presence of a phosphodiesterase 3-inhibitor

Abstract excerpt

BACKGROUND: Controlling nuclear maturation during oocyte culture might improve nuclear-cytoplasmic maturation synchrony. In the present study, the quality of mouse and human cumulus-enclosed oocytes (CEOs) was examined after a two-step culture consisting of a three-dimensional prematuration culture (3D-PMC), followed by in vitro maturation (IVM). METHODS: Mouse and human CEOs were embedded in an extracellular...

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