Abstract:The effect of fetuin, an a1-glycoprotein that has protease inhibitor activity, on the biock to potyspermy was determined. Cumulus-oocyte complexes from eCG primed mice were matured in vitro in the presence of 0, 0.01, 0.1, l and 10mg/ml of fetuin in modifica TCM 199. Both in vivo and in vitro matured oocytes were fertilized in the presence of fetuin and incubated for 6 and 24h. Fetuin present in a concentration of 1 mg/ml in the ferlilization but not in the maturation medium was able to induce polyspermy in 52… Show more
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