用PCR技术产前诊断人巨细胞病毒感染

用ＥＬＩＳＡ法筛选早孕妇女血人巨细胞病毒ＩｇＭ（ＨＣＭＶ－ＩｇＭ），在孕１２￣２０周用聚合酶链式反应（ＰＣＲ）技术检测其羊水中ＨＣＭＶ－ＤＮＡ，对胎儿巨细胞病毒感染作出产前诊断。在３８４例孕妇中，筛选出血ＨＣＭＶ－ＩｇＭ阳性２６例为实验组，其羊水ＨＣＭＶ－ＤＮＡ检出率为３４．６２％；从２５８例ＨＣＭＶ－ＩｇＭ阴性中选出２０例为对照组，其羊水ＨＣＭＶ－ＤＮＡ检出率为１０．０％，两组比较有显著性差异（     

PPARγ与多囊卵巢综合征胰岛素抵抗的研究

PPAR即过氧化物酶体增殖体激活受体 ,是核受体超家族成员之一。PPARγ主要表达于脂肪组织 ,它可以促进脂肪细胞分化、调控多种脂肪细胞分泌的蛋白质因子基因的表达。近年发现PPARγ基因的多态性及对脂肪细胞因子的调控作用与PCOSIR的发生密切相关 ;而噻唑烷二酮类药物激活PPARγ后可以改善PCOSIR的研究结果 ,进一步说明PPARγ的作用可能是PCOSIR多种形成机制中的重要途径之一。     

连续多发性流产夫妇的高分辨染色体研究——附6例世界首报异常核型

选择407对连续流产2-8次的夫妇进行染色体G显带分析,发现异常核型23例。407对夫妇中,采用高分辨技术精细定位46例,发现的15例异常核型中有6例鉴定为世界首报,对其中4例进行了绒毛染色体检查,均发现与父(母)相同的异常核型,说明非同源染色体相互易位和倒位携带者的后代必须接受宫内诊断,智力低下或生育力降低可能与易位染色体有关。     

Expression of c-erbB2 in gestational trophoblastic disease and its clinical significance

Summary: In order to explore a potential indicator of predicting the occurrence and development of gestational trophoblastic tumor, the expression of c-erbB2 oncogene in human normal placenta, hyda tidiform mole and choriocarcinoma was investigated. The expression of c-erbB2 was detected im munohistochemically by monoclonal antibody against the gene on the formalin-fixed paraffin sections of 21 hydatidiform moles, 21 invasive moles, 20 choriocarcinomas and 30 normal placentas. Results showed that the expression level of c-erbB2 was significantly higher in gestational trophoblastic tumor than in hydatidiform mole and normal placenta of midterm and term pregnancy (P＜0. 05), while there was no significant difference between patients with gestational trophoblastic tumor of stage Ⅲ ,Ⅳ and those of stage Ⅰ , Ⅱ . It was demonstrated that overexpression of c-erbB2 may closely associ ated with malignant transformation of hydatidiform mole, not only providing important insight into pathogenesis of gestational trophoblastic tumor, but also having an important significance for the ear-ly diagnosis and early treatment of gestational trophoblastic tumor.     

Effects of Placental Isoferritin on the Mouse Embryo Development in vitro

To investigate the effect of placental isoferritin （PLF） on mouse embryo development in vitro, mice 2-cell embryos were co-cultured with human first trimester decidual cells at different concentrations of PLF in vitro. The following changes of the above system were observed under an invert microscope and the number of embryos were recorded and the embryos were classified. The results showed there was no significant difference in the percentage of embryos development to 4-cell 8-cell and morula （P〉0.05）. PLF at the doses of 10 and 100 U/mL significantly enhanced more embryos development to the blastocyst and hatching blastocyst （P〈0.05）. PLF at the dose of 1000 U/mL depressed more embryos development from 2-cell to hatching blastocyst, meanwhile such phenomena as cell degeneration and irregular cleavage were observed in part of embryos, but there was no significant difference in statistics （P〉0.05）. It was concluded that PLF at the concentration of 10-- 100 U/mL had no significant effects on the early development of mice embryos, however, PLF could promote the growth, differentiation, and hatching of preimplantion blastocysts.     

小剂量阿斯匹林辅助促排卵过程中对子宫血流及内膜厚度的影响

目的　探讨小剂量阿斯匹林在促排卵过程中对子宫血流及内膜厚度的影响及其作用机理。方法　采用前瞻性随机双盲的方法 ,对不明原因的不孕妇女在克罗米酚 (CC)促排卵治疗同时 ,自月经第 1～ 2 0d连续服用小剂量阿斯匹林 ,75mg/d。 结果　试验组子宫动脉血流阻力指数 (RI)明显低于对照组 (P <0 0 1) ,子宫内膜厚度明显较对照组厚 (P <0 0 5 )。结论　小剂量阿斯匹林可增加子宫血流供应 ,从而改善促排卵治疗时CC所致的子宫内膜发育不良     

B超诊断胎儿异常的初步评价

一、资料与结果 1985年7月至1987年7月对普通产科晚期妊娠2571例进行了 B 超检查,称为产科组.诊断“正常儿”2545例,其中分娩右肩部血管瘤和脐膨出各1例;“异常儿”26例,其中漏诊1例脐     

血浆抵抗素与多囊卵巢综合征患者胰岛素抵抗的关系

目的 :探讨血浆抵抗素 (resistin)水平与多囊卵巢综合征 (PCOS)胰岛素抵抗的关系。方法 :采用ELISA方法检测 30例PCOS患者及 35例正常对照组空腹血浆抵抗素浓度 ,并采用放射免疫法检测黄体生成激素 (LH)、卵泡刺激素(FSH)及空腹胰岛素 (FIN) ,用氧化酶法检测空腹血浆葡萄糖 (FPG)浓度 ,计算胰岛素抵抗指数 (HOMA IR)。结果 :①PCOS组血浆抵抗素、LH、LH/FSH、FIN、HOMA IR均显著高于对照组 (均P <0 0 5 ) ;②PCOS组血浆抵抗素与FPG、FIN、HOMA IR、LH及LH/FSH呈显著正相关 (r分别为 0 5 8、0 6 1、0 6 4、0 4 7、0 4 1)。结论 :抵抗素参与了PCOS胰岛素抵抗的发生过程 ;血浆抵抗素浓度可能作为一种新的敏感指标在评价PCOS胰岛素抵抗程度方面具有一定的临床价值     

印迹基因H19和IGF2的遗传学特征与生物学意义

印迹基因Ｈ１９和ＩＧＦ２的遗传学特征与生物学意义张春莲颜建华孙永玉基因组印迹（ｇｅｎｏｍｉｃｉｍｐｒｉｎｔｉｎｇ）是新近发现的依靠单亲传递某种遗传性状的遗传规律。印迹基因指源自双亲的两个等位基因中一方不表达或者很少表达的基因。印迹的机理和印迹本身的分...