稽留流产患者滋养细胞中FoxO3a转录因子的表达

目的:探讨稽留流产滋养细胞中叉头框转录因子3a(FoxO3a)的表达及其与凋亡的关系.方法:选取30例经B超及HCG动态监测证实为稽留流产病例的绒毛组织作为研究组,另选取30例因非意愿妊娠行人工流产的正常妊娠病例的绒毛组织作为对照组.免疫组织化学法检测两组绒毛组织标本中FoxO3a及Caspase-3的表达并采用图像分析技术对其阳性表达进行半定量分析.结果:FoxO3a的表达位于滋养细胞胞质或胞核,Caspase-3的表达位于绒毛滋养细胞胞质;与正常妊娠组相比,稽留流产组滋养细胞中的FoxO3a表达降低和Caspase-3表达增多;组内FoxO3a及Caspase-3的表达有线性相关(P0.05).结论:稽留流产滋养细胞中FoxO3a表达降低可能与细胞过度凋亡有关.     

CXCL1在子宫内膜样腺癌中的表达及其对Ishikawa细胞增殖侵袭的影响

目的:研究趋化因子配体1 (CXCL1)在子宫内膜样腺癌中的表达及其对人子宫内膜高分化腺癌细胞株Ishikawa细胞增殖、凋亡、迁移能力及侵袭能力的影响,以及CXCL1因子与子宫内膜样腺癌的发生及浸润转移的关系.方法:免疫组化法检测CXCL1在子宫内膜样腺癌患者的子宫内膜组织子宫内膜非典型增生患者的子宫内膜组织及正常增生期子宫内膜组织中的表达,QRT-PCR法检测子宫内膜样腺癌组织与癌旁组织中CXCL1 mRNA的相对表达;体外运用siRNA沉默Ishikawa细胞中CXCL1的基因表达,分别通过CCK8法及流式细胞仪法检测沉默CXCL1对细胞增殖及凋亡的影响,划痕实验及transwell法检测对细胞迁移能力与侵袭能力的影响,Western Blot检测pNF-κB,MMP9及Caspase-3的蛋白表达.结果:免疫组化及QRT-PCR结果显示,子宫内膜样腺癌组织中CXCL1表达升高,有淋巴结转移、分期较晚及肿瘤直径较大的患者的子宫内膜组织中表达显著升高;在CXCL1沉默组中,细胞增殖、迁移能力及侵袭能力下降,凋亡率增加,凋亡蛋白Caspase-3表达升高,pNF-κB,MMP9蛋白表达降低(P0.05).结论:CXCL1在子宫内膜样腺癌组织中高表达,沉默CXCL1可能通过下调磷酸化NF-κB抑制Ishikawa细胞的增殖、迁移能力及侵袭能力,促进细胞凋亡.     

子宫腺肌病EMI处MMP-7和E-Cadherin的表达及意义

目的:检测基质金属蛋白酶-7(MMP-7)及上皮钙黏素-E(E-cadherin)在子宫腺肌病病灶与内膜-肌层界面(EMI)处在位内膜的表达情况,了解MMP-7及E-cadherin在子宫腺肌病发病中的作用.方法:选取因子宫腺肌病行全子宫切除或次全子宫切除的子宫标本40例,同时以子宫良性病变(如子宫肌瘤)行全子宫切除或次全子宫切除的子宫标本30例作为对照.采用免疫组化方法检测MMP-7及E-cadherin在子宫腺肌病病灶、子宫内膜-肌层界面处组织中的表达水平,测定这两种蛋白分子表达的阳性单位(PU值).结果:在子宫腺肌病组中病灶和内膜-肌层交界处内膜MMP-7较对照组表达水平上调;E-cadherin的表达下调;两者在子宫腺肌病子宫内膜-肌层交界处的内膜表达水平呈负相关.结论:子宫EMI处子宫内膜腺体细胞MMP-7表达增高,降解了子宫肌层的细胞外基质,其屏障作用减弱,基底层子宫内膜细胞容易侵入子宫肌层生长并形成异位病灶;EMI处腺体细胞E-cadherin表达下调,直接导致细胞黏附能力下降,细胞解聚,子宫内膜细胞之间以及子宫内膜细胞与基质之间的黏附作用降低,从而变得易从在位部位解离,侵入和种植在肌层中.     

新型雌激素受体GPR30抑制子宫肌瘤平滑肌细胞的增殖

子宫肌瘤是女性生殖器最常见的一种良性肿瘤,是由子宫平滑肌细胞异常增殖形成的,故又称为子宫平滑肌瘤.GPR30是新型雌激素偶联G蛋白受体,在乳腺癌的发生发展中起到重要作用,但是在子宫肌瘤疾病中的作用未见报道.对取自临床病人样本的子宫肌瘤和周边正常子宫肌组织,分离其平滑肌细胞,通过应用Western blot、real-time PCR(RT-qPCR)、免疫荧光等技术,验证GPR30对其增殖的影响.结果表明,在子宫肌瘤组织和子宫肌瘤平滑肌细胞中,GPR30的mRNA和蛋白的表达水平显著高于周边的正常子宫肌组织和子宫肌平滑肌细胞.在子宫肌瘤平滑肌细胞中,GPR30的特异性激动剂G-1,可以激活表皮生长因子受体EGFR,抑制细胞的增殖.这为子宫肌瘤的研究与治疗提供了新视角,具有重要的理论和实际意义.     

牦牛Caspase-3克隆、序列分析与组织表达研究

半胱天冬酶3(Aspartate-specific cysteinyl proteinase 3,Caspase-3)是哺乳动物最重要的细胞凋亡执行者,为探究Caspase-3基因在牦牛繁殖活动中的调控作用奠定基础,试验对牦牛Caspase-3编码区进行克隆和生物信息学分析,并比较牦牛和黄牛下丘脑、垂体、卵巢、输卵管及子宫等组织的表达差异.结果表明:牦牛Caspase-3基因编码区全长834 bp,编码277个氨基酸,与黄牛Caspase-3基因相比同源性最高(99. 52%)且遗传距离最近,发生4个碱基突变;与鸡同源性最低(71. 32%)且遗传距离最远,保守且符合动物进化进程.q PCR结果显示Caspase-3在牦牛生殖轴中的表达量均高于黄牛,其中,在下丘脑、输卵管中达到P 0. 01水平,在子宫中达到P 0. 05水平.推测极端环境应激引起Caspase-3基因的高表达可能影响母牦牛的繁殖性能.     

TGF-β_1、Caspase-3和WT1在肾活检肾小球肾炎组织中的表达及临床病理意义

目的:探讨转化生长因子β1(TGF-β1)、半胱氨酸天冬氨酸蛋白酶3(Caspase-3)及肾母细胞瘤抑癌基因蛋白(WT1)在肾活检肾小球肾炎组织中的表达及其意义。方法:采用Envision法对40例肾小球肾炎组织及7例对照组肾组织进行TGF-β1、Caspase-3和WT1免疫组织化学染色标记、分析。结果:TGF-β1、Caspase-3、WT1在各种肾炎组织中均有表达,各实验组与对照组差异有统计学意义(P0.05)。TGF-β1在系膜增生性肾小球肾炎组的表达明显低于膜性肾病组(t=-4.131,P=0.002);Caspase-3在各组别中其表达差异无统计学意义;WT1在大量高蛋白尿组表达低于非大量蛋白尿组(t=-2.130,P=0.046);其余组别差异无统计学意义。WT1的低表达与TGF-β1、Caspase-3的高表达相关。结论:TGF-β1、Caspase-3表达的上调及WT1表达的下调与肾病理改变密切相关,蛋白尿和足细胞减少可能是肾脏病进展的预测因子及肾小球硬化的原因。     

高危型人乳头瘤病毒感染与宫颈鳞癌中γ-干扰素及白介素-10表达的相关性

目的:探讨高危型人乳头瘤病毒(HR-HPV)感染与宫颈鳞癌组织中γ-干扰素(IFN-γ)及白介素-10(IL-10)表达的相关性.方法:选取宫颈上皮内瘤变(CIN)及宫颈鳞癌组织共81例作为研究组,另选取15例正常宫颈组织作为对照组.采用导流杂交基因芯片技术检测宫颈脱落细胞中HR-HPV的感染状态及分型;应用免疫组化方法检测宫颈组织标本中IFN-γ及IL-10的表达并采用图象分析技术对其阳性表达进行半定量分析.结果:(1)正常宫颈组、CIN组和宫颈鳞癌各组的HR-HPV感染率比较有显著差异(P0.05).(2)正常宫颈组、CIN组及宫颈鳞癌组中IFN-γ阳性表达的IOD值分别为(3.556±1.356)、(3.085±1.081)及(1.617±0.754),经方差分析,组间比较有显著差异(P0.05);IL-10阳性表达的IOD值分别为(3.384±1.310)、(4.381±1.295)及(7.276±1.985),组间比较差异显著(P0.05).(3)在HR-HPV非感染组与感染组中IFN-γ阳性表达的IOD值分别为(3.340±1.053)和(2.481±1.210),IL-10阳性表达的IOD值分别为(3.590±1.350)和(5.772±2.048),两组比较均有统计学差异(P0.05).结论:宫颈局部IFN-γ的表达减弱,IL-10的表达增强,与HR-HPV的感染结局相关.     

γ-干扰素在宫颈上皮内瘤变及宫颈鳞癌中的表达及意义

目的:探讨γ-干扰素(γ-Interferon,γ-IFN)在宫颈上皮内瘤变及宫颈鳞癌中的表达及意义.方法:应用免疫组化S-P法检测20例宫颈鳞癌,48例宫颈CIN及10例正常宫颈组织中γ-IFN的表达并应用图像分析技术及阳性单位(positive unit,PU)值表达γ-IFN免疫组化阳性反应的结果.结果:(1)γ-IFN在正常宫颈上皮、宫颈CIN及宫颈鳞癌中表达的PU值分别为(30.80±2.62)、(16.47±1.25)及(9.80±1.62),3组比较P＜0.05;(2)在宫颈CIN Ⅰ、Ⅱ、Ⅲ中γ-IFN表达的PU值为(18.17±2.35)、(13.48±1.75)、(10.20±3.54),3组比较P＜0.01;(3)在高分化、中分化及低分化宫颈鳞癌中γ-IFN表达的PU值分别为(12.75±1.06)、(9.48±1.28)及(6.06±1.13),3组比较P＜0.05;而在Ⅰ、Ⅱ、Ⅲ期宫颈鳞癌中Y-IFN表达的PU值分别为(8.91±0.72)、(8.05±0.77)及(7.79±0.45),3组比较P＞0.05.结论:富颈CIN及宫颈鳞癌的发生与γ-IFN的表达减弱有关;而且宫颈鳞癌细胞的分化程度也与γ-IFN表达下调有关.     

阴式子宫肌瘤剔除术68例临床分析

目的探讨阴式子宫肌瘤剔除术的治疗效果。方法经阴道对68例子宫肌瘤患者行子宫肌瘤剔除术，其中单发肌瘤50例，多发肌瘤18例，浆膜下肌瘤15例，肌壁间肌瘤52例，子宫腺肌瘤1例。结果56例手术均获成功，1例因为子宫腺肌瘤改行阴式子宫切除，另1例因盆腔粘连改开腹肌瘤剔除。术中出血（204．30±104．55）ml，手术时间（60．77±22．31）min，术后肛门排气时间（21．46±6．51）h，术后住院天数（3．27±1．20）d，无严重术后并发症。结论经阴道子宫肌瘤剔除术秉承了阴式手术微创性的优点，可安全有效保留子宫。     

Survivin在子宫腺肌病中的表达及与VEGF相关性研究

目的探讨凋亡抑制基因Survivin在子宫腺肌病的表达及其与VEGF的相关性。方法应用免疫组织化学S—P法,检测50例子宫腺肌病异位及在位内膜组织中Survivin、VEGF蛋白的表达,并与正常在位子宫内膜组织30例进行对照。结果子宫腺肌病异位内膜组织中Survivin蛋白阳性表达率为80％,明显高于正常内膜及在位内膜组织的表达率16．67％、16％（P〈0．05）;子宫腺肌病异位内膜组织中VEGF蛋白阳性表达率为56％,明显高于正常内膜及在位内膜组织的表达率38％、20％（P〈0．05）;Survivin蛋白表达与VEGF蛋白呈正相关（P〈0．01）。结论Survivin可通过抑制异位内膜细胞凋亡,参与血管形成对子宫腺肌病的发生、发展起作用;Survivin与VEGF在子宫腺肌病的发生、发展中起协同作用。     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that     

On the Thermodynamic Limit for Responses to Static Electromagnetic Fields

For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the     

An affordable accurate evaluation of the binding conformations predicted by molecular docking studies in bio-system

Franck-Condon factors bridge the gap between theoretical modeling and experimental observations for molecular electronic spectroscopy and electron transfer.Under the displaced harmonic oscillator approximation,multidimensional Franck-Condon factors are decomposed into a product of many one-dimensional(1D)Franck-Condon(FC)factors,and each 1D-FC factor is associated with one Huang-Rhys factor that determines the leading contribution of     

Call for Papers

<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with