Injection of a porcine sperm factor triggers calcium oscillations in mouse oocytes and bovine eggs

Abstract excerpt

Fertilization in mammals is associated with the generation of intracellular calcium ([Ca2+]i) oscillations. The site of, or mechanism(s) utilized by, the sperm to initiate and maintain these Ca2+ responses is not known. In this study, we tested the hypothesis that a factor from the sperm is capable, upon release into the oocyte's cytosol, of initiating oscillations. A sperm factor, prepared from porcine semen,...

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