甲胎蛋白在产前诊断中的作用1957年由人胚胎中发现一种正常成年人含量甚微的蛋白质,称为胎儿甲种球蛋白(以下简称α-FP),它是胎儿血清的正常组织成分。经研究等电点为4.75,分子量6.5～7.0万,紫外吸收高峰在278mμ,电泳分析位于白蛋白与α_1球蛋白之间。一、α-FP的来源及分布α-FP是胎儿血清中的主要蛋白质,只有在妊娠时,正常成年妇女的血清α-FP才会升高,一般在怀孕后30天就能查出来。开 The role of alpha fetoprotein in prenatal diagnosis In 1957, a protein with a very low content of normal adults was found in human embryos, called fetal alpha globulins (hereinafter referred to as alpha-FP), which is the normal tissue of fetal serum ingredient. The isoelectric point of 4.75, molecular weight of 6.5 to 70,000, UV absorption peak at 278mμ, electrophoresis analysis is located between albumin and α 1 globulin. First, the origin and distribution of α-FP α-FP is the main protein in fetal serum, and only in pregnancy, normal adult women serum α-FP will rise, usually 30 days after pregnancy can be found out. open