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采用免疫学方法对250例正常孕妇各期血及脐血的免疫球蛋白(IgG、IgA、IgM);补体(C_3、C_4);转铁蛋白(Tf);铜蓝蛋白(CP),淋巴细胞转化率(LBT)等八项指标进行检测结果表明,IgG、IgA 随孕周增加而降低(P<0.05);IgM 一过性增高(P<0.01);C_3、C_4妊娠各期基本相近,与非孕妇女没有明显变化,Tf 值随孕周增加而增加,特别是晚期和分娩期高值(P<0.01),CP 值随孕周增加而增加(P<0.01);LBT 随孕周增加而降低(P<0.01).脐血与分娩期八项指标比较:IgG 接近非孕妇女;IgA、IgM 明显降低(P<0.01);C_3、C_4明显降低(P<0.01);Tf 值接近分娩期,CP 显著性降低(P<0.01),LBT 恢复接近非孕妇女.
Immunoglobulin (IgG, IgA, IgM), complement (C_3, C_4), transferrin (Tf), ceruloplasmin (CP), lymphocyte (P <0.01). The levels of C_3 and C_4 in pregnancy were almost the same, with the increase of gestational age The non-pregnant women had no significant change, Tf increased with gestational age, especially in late stage and delivery stage (P <0.01), CP value increased with gestational weeks increased (P <0.01); LBT increased with gestational age (P <0.01) .Comparison of eight indicators of umbilical cord blood and childbirth: IgG was close to non-pregnant women; IgA and IgM were significantly lower (P <0.01); C_3 and C_4 were significantly lower (P <0.01); Tf was close to childbirth , CP was significantly lower (P <0.01), LBT recovery near non-pregnant women.