Induction of early pregnancy factor activity in vitro by platelet-activating factor in mice

in Reproduction

The rosette inhibition test was used to determine early pregnancy factor activity in culture media from oestrous mouse ovaries and oviducts stimulated in vitro for early pregnancy factor production under different experimental conditions. Embryo conditioned media, platelet-activating factor and cortical granule release media could all stimulate the production of early pregnancy factor by oestrous mouse ovaries and oviducts. This stimulation was completely blocked by the presence of BN 52021, a platelet-activating factor receptor antagonist. This study indicates that platelet-activating factor is the 'ovum factor' released by the zygote on fertilization to initiate the synthesis of early pregnancy factor.

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Sept 2018 onwards Past Year Past 30 Days
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