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随着免疫学和围产医学的进展,胎儿免疫机制的建立,母儿间的免疫学关系已引起重视。已知人类胎儿,妊娠中期即有排斥异物的能力,细胞性免疫反应逐渐增强。体液反应方面,胎儿已能自己合成免疫球蛋白和特殊抗体,并且还由母体通过胎盘转入免疫球蛋白G(IgG)而获得被动免疫。而免疫球蛋白A(IgA)和M(IgM)不能通过胎盘,系由胎儿自己合成。
With the progress of immunology and perinatal medicine, the establishment of fetal immune mechanism and the immunological relationship between mother and child have drawn great attention. Known human fetus, that is, the second trimester of pregnancy rejection of foreign body capacity, cell immune response gradually increased. In humoral reactions, the fetus has been able to synthesize immunoglobulins and special antibodies on its own, and passive immunization is also obtained by the transfer of the mother’s body through the placenta into immunoglobulin G (IgG). However, immunoglobulin A (IgA) and M (IgM) can not pass through the placenta and are synthesized by the fetus themselves.