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采用玫瑰花结抑制试验对２３例人工授精者３１个月经周期排卵后２～７天内的血清进行了早孕因子（Ｅａｒｌｙｐｒｅｇｎａｎｃｙｆａｃｔｏｒ，ＥＰＦ）活性的研究。结果：１５例测出ＥＰＦ活性，随访后５例妇女妊娠至分娩，５例妇女妊娠后早期流产，５例妇女测出ＥＰＦ活性但随访未妊娠推测为胚泡丢失；另外８例妇女未测出ＥＰＦ活性，随访无１例妊娠。研究还发现：人工授精妇女的受精率为６５．２％，ＡＩＨ组与ＡＩＤ组妇女受精率的差别无显著性（Ｐ＞０．０５）。
The rosette inhibition test was used to study the activity of Early Pregnancy Factor (EPF) in serum of 2 ~ 7 days after ovulation of 31 menstrual cycles in 23 cases of artificial insemination. Results: The EPF activity was measured in 15 cases. Five women were followed up from pregnancy to childbirth, 5 were aborted early after pregnancy, 5 women were tested for EPF activity but were missed during follow-up. The other 8 women were undetectable EPF activity, no follow-up of 1 pregnancy. The study also found that: fertilization rate of 65.2% of artificial insemination women, AIH group and AID group fertility rate difference was not significant (P> 0.05).