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作者应用酶联免疫吸附试验（ELISA）分别测定了49例正常足月儿脐动脉血清和50例脐静脉血G－CSF阳性率和含量。脐动脉及脐静脉血清G－CSF阳性率分别为8.16％及74％，并测定了其中37例阳性脐静脉血中G－CSF含量，结果S／N最高值19．94，最低2.1，均值为5．90±3．95。经统计学处理，脐静脉血与脐动脉血中G－CSF阳性率有显著性差别（P＜0．01）。并用单向环状免疫扩散（RID）法，测定了41例正常足月儿脐静脉血中免疫球蛋白（IgG，IgA，IgM）含量，IgG（13．02±3．65）明显高于正常值11．2±3．2，（P＜0．05），IgA未测到，IgM含量明显低于正常值。
The authors used enzyme-linked immunosorbent assay (ELISA) were measured in 49 cases of normal full-term children with umbilical artery serum and 50 cases of umbilical cord blood G-CSF positive rate and content. The positive rates of G-CSF in umbilical artery and umbilical vein were 8.16% and 74%, respectively. The G-CSF content in 37 cases of umbilical vein blood was measured. The highest S / N value was 19.94, the lowest was 2.1, 5.90 ± 3.95. Statistically, the positive rates of G-CSF in umbilical cord blood and umbilical artery were significantly different (P <0.01). Immunoglobulin (IgG, IgA and IgM) in 41 cases of full-term infants were determined by one-way annular immunodiffusion (RID) method. IgG (13.02 ± 3.65) was significantly higher than that of normal Value of 11.2 ± 3.2, (P <0.05), IgA was not detected, IgM levels were significantly lower than normal.