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1.
本文对85例核型正常和30例核型异常的自然流产夫妇与20例正常夫妇进行淋巴细胞脆点的研究。通过三组互相比较,发现核型正常组和正常对照组的染色体畸变率、脆点表达率二项有显著差异;核型异常组和正常对照组的二项有极显著差异;核型正常组和核型异常组的二项有显著差异。并发现20个脆点与核型异常部位相一致,一致率为36.36%。说明脆点可能引起生殖细胞染色体断裂或重排。淋巴细胞染色体畸变率和脆点表达率升高是反映染色体稳定性的指标,染色体稳定性降低可能是引起自然流广的原因。 相似文献
2.
用PCR技术产前诊断人巨细胞病毒感染 总被引:3,自引:0,他引:3
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( 相似文献
3.
采用间接免疫酶组化法检测1253例孕妇和40例有反复流产、畸胎、死胎史的优生咨询者及14例孕妇巨细胞病毒IgM(HCMV-IgM)阳性的新生儿脐血的HCMV-IgM。结果:孕妇HCMV-IgM阳性率为8.06%,16例反复流产者阳性3例,13例畸胎史者阳性5例,11例死胎史者阳性2例。14例新生儿脐血阳性11例。提示HCMV感染与致畸、自然流产,死胎有密切关系,新生儿可从HCMV-IgM阳性的母亲获得先天性感染。 相似文献
4.
血浆抵抗素与多囊卵巢综合征患者胰岛素抵抗的关系 总被引:1,自引:0,他引:1
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 相似文献
5.
Survivin isa newly found memberof inhibitorofapoptosis proteins(IAP) ,which is independent ofBcl- 2 proteins,and is expressed in most human ma-lignancy,being abundant in mouse and human em-bryonic and fetal tissues and undetectable in normaladult tissues.Survivin has been shown to be presentin 6 0 cancer celllines,including breast,lung,renal,prostate and ovarian[1] .It hasbeen reported thattheexpression of survivin protein washigh in the glandu-lar epithelial cells during secretory phase of h… 相似文献
6.
7.
Expression of c-erbB2 in gestational trophoblastic disease and its clinical significance 总被引:1,自引:0,他引:1
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. 相似文献
8.
目的:研究多囊卵巢综合征(PCOS)患者脂肪组织磷脂酰肌醇-3激酶(PI-3K)的表达及酶活性的改变,探讨PCOS胰岛素抵抗(IR)的分子机制。方法:采用Western blot检测PCOS IR 组(19例)、PCOS非IR组(17例)及对照组(20例)PI-3K亚单位P85蛋白在三组脂肪组织中的表达,RT-PCR方法检测各组脂肪组织PI-3K亚单位P85 mRNA的表达;采用免疫沉淀、薄层层析及γ液闪计数方法检测PI-3K的活性,并进行分析比较。结果:①PCOS IR组PI-3K亚单位P85蛋白质及mRNA的表达与PCOS非IR组和对照组相比差异无显著性意义(P>0.05)。②PCOS 组PI-3K的活性显著下降,而PCOS IR组激酶活性的下降尤为明显(P<0.01),与HOMA-IR呈显著负相关(P<0.01)。结论:PCOS IR患者PI-3K亚基的P85转录及翻译水平均无改变,该激酶活性的降低,影响胰岛素信号通路中信号分子的生物学作用,是导致IR形成的重要机制。 相似文献
9.
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. 相似文献
10.