血管内皮生长因子受体2在子前期患者胎盘中的表达及其意义

目的 探讨子痢前期患者胎盘中血管内皮生长因子受体2(KDR)的表达与胎盘血管病变的关系,研究子(癎)前期的发病机制.方法 对中国医科大学附属第二医院2004年1至11月间收治的重度子(癎)前期患者22例、轻度子(癎)前期患者20例和同期正常妊娠妇女20例,采用免疫组化SP法检测其胎盘中KDR的表达情况,记数胎盘间质的平均微血管密度(MVD)值.结果 子(癎)前期重度患者胎盘中KDR的表达显著低于轻度患者和正常孕妇(P＜0.01),子(癎)前期轻度组较正常对照组KDR表达明显降低(P＜0.05).子(癎)前期重度组患者胎盘中MVD值明显低于轻度组和正常对照组(P＜0.01),子(癎)前期轻度组较正常对照组MVD值降低(P＜0.05).子(癎)前期患者和正常孕妇胎盘中KDR表达与MVD值的变化呈显著正相关(r=0.855,P＜0.01).结论 KDR表达水平降低可能参与引起胎盘血管发育不良.从而导致子(癎)前期的发生和发展.     

子前期患者外周血中CD4+CD25+调节性T细胞水平及其意义

目的 探讨子(癎)前期患者外周血CD4+CD25+调节性T淋巴细胞(CD4+CD25+Tr)和cD4+CD25high 调节性T淋巴细胞(CD4+ CD25high Tr)在子(癎)前期发病中的作用.方法 2005年10月至2006年3月对安徽省立医院子(癎)前期患者30例和正常早、晚期妊娠及正常非妊娠组妇女各13例、22例及15例,采用流式细胞仪检测其外周血CD4+CD25+Tr和CD4+CD25high Tr占CD4+T细胞的比率,分析其与子(癎)前期的关系.结果 子(癎)前期组妇女外周血CD4+CD25+Tr和CD4'cD25 highrrr表达率分别为(6.64±1.10)%和(0.53±0.17)%,明显低于正常晚期妊娠组妇女的(12.26±1.32)%和(1.18±0.05)%,两组比较,差异有统计学意义(P＜0.01).正常非妊娠组妇女外周血CD4+CD25'Tr表达率(10.8±1.05)%和正常早期妊娠组CD4'CD25'Tr表达率(11.21±1.40)%比较,差异无统计学意义,但均低于正常晚期妊娠组(P＜0.05).结论 CD4+CD25+Tr和CD4+cD25high Tr可能与子(癎)前期的发病机制有关.     

血红素氧合酶在子癎前期胎盘组织中的表达及意义

本文对血红素氧合酶(heme oxygenase, HO)在妊娠期高血压疾病子疒间前期患者胎盘中的表达进行分析,旨在探讨其在妊娠期高血压疾病发病中的意义.     

血红素氧合酶在子疒间前期胎盘组织中的表达及意义

本文对血红素氧合酶(hemeoxygenase,HO)在妊娠期高血压疾病子疒间前期患者胎盘中的表达进行分析,旨在探讨其在妊娠期高血压疾病发病中的意义。1资料与方法1.1研究对象选取2004年4～9月在哈尔滨医科大学第二附属医院产科住院行剖宫产分娩的产妇30例,按《妇产科学》第6版的诊断标准确诊为子疒间前期(PE)的孕产妇15例为PE组,年龄24～35岁,平均27岁,孕周为34～39,孕龄平均37周,无产科其他并发症及内、外科合并症;并选择同期住院分娩的正常孕妇15例为对照组,年龄22～33岁,平均25岁,孕周为36～40周,孕龄平均38周,均因骨盆狭窄、巨大儿、胎位异…     

血红素氧合酶在子痫前期胎盘组织中的表达及意义

本文对血红素氧合酶（heine oxygenase，HO）在妊娠期高血压疾病子痫前期患者胎盘中的表达进行分析，旨在探讨其在妊娠期高血压疾病发病中的意义。     

Conjoined twins, conception, pregnancy, and delivery: A reproductive history of the pygopagus Bla ek sisters (1878-1922)

Conjoined twins represent the most uncommon twinning mechanism in humans, with an incidence approaching 1:100,000 deliveries. Although several conjoined male twins have occasionally been reported, for unexplained reasons most cases of conjoined twins are female. Of all the female conjoined twin sets either documented by medical authorities or referenced in ancient literary sources, in only one case were pregnancy and delivery successfully achieved by the conjoined twins themselves. We describe the highly unusual circumstance of the Bla ek sisters, an extreme developmental example of the terminal monogenital pygopagus type of conjoined twins in which one of the joined sisters conceived and underwent labor and childbirth. Although little information is known about their own birth, these conjoined twins paradoxically hold a unique place in the history of obstetrics. Information from formal anatomic examinations of the sisters and their exploitative circus exhibitions is outlined with a view to explain relevant reproductive events. We present the sensational conception, pregnancy course, and subsequent vaginal delivery of a healthy male infant as summarized from contemporary sources. Additionally, the significance of pygopagus twins is discussed with regard to other types of monozygous twinning. Although modern operative techniques have been a welcome advance in the science of conjoined twin separation, the Bla ek case is another reminder that, even in the era before complex surgery, conjoined twins were not necessarily consigned to an incomplete reproductive career. (Am J Obstet Gynecol 2001;185:1396-402.)