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已有学者对胎儿血清中母体免疫球蛋白G(IgG)的含量进行了检测,结果证实于妊娠末期胎儿循环中母源IgG含量增高,但对胎盘中IgG的实际浓度尚未进行深入研究,依胎儿IgG水平推测,胎盘中母体IgG水平也可能随孕
Some scholars have tested the content of maternal immunoglobulin G (IgG) in fetal serum and found that the content of maternal IgG increased in the fetal circulation in the end of pregnancy. However, the actual concentration of IgG in the placenta has not been further studied, IgG level speculated that the level of maternal IgG in the placenta may also be with pregnancy