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妊娠期羊水中含高浓度泌乳素(PRL),已知羊水 PRL 来自子宫蜕膜并经胎膜进入妊娠囊。在妊娠中期,羊水 PRL 达高峰,此后稳步下降至足月妊娠。作者报道了26例中期(14～23周)及75例晚期(29～40周)妊娠的羊水 PRL 的放射免疫测定(RIA)及生物学测定(BA)结果。羊水由羊膜穿刺或选择性剖宫产切开子宫前获取。101例羊水标本均取自正常单胎妊娠妇女。取到羊水后立即低温离心,上清液保存于-20℃冰箱待测。RIA 采用常规方法,BA 为 Nb_2大鼠淋巴瘤法。相对生物学活性
Gestational amniotic fluid contains high concentrations of prolactin (PRL), it is known that amniotic fluid PRL from the uterine decidua and fetal membranes through the pregnancy sac. In the second trimester of pregnancy, amniotic fluid PRL reached a peak, then steadily declined to full-term pregnancy. The authors reported radioimmunoassay (RIA) and bioassay (BA) results for amniotic fluid PRL in 26 patients with metaphase (14-23 weeks) and 75 late (29-40 weeks) pregnancies. Amniotic fluid by amniocentesis or selective cesarean section before the uterus access. 101 cases of amniotic fluid samples were taken from normal singleton pregnant women. Immediately after taking amniotic fluid, the supernatant was stored in a freezer at -20 ° C for further testing. RIA using conventional methods, BA for the Nb 2 rat lymphoma. Relative biological activity