人心房成纤维细胞体外组织块贴壁培养与鉴定

从建立体外循环将进行心脏手术的风湿性心脏病患者体内无菌下取心脏停跳前右心耳组织，采用组织块贴壁法进行心房成纤维细胞的分离培养，通过光学显微镜观察培养后的细胞形态，并通过免疫细胞化学的方法鉴定所分离培养的细胞。贴壁4—6d后可见长梭形贴壁生长的细胞游离出组织块，细胞生长迅速，2—3d后即呈融合状态，细胞排列紧密，有的交叉重叠生长，胞体较大，细胞浆透明，细胞核较大，呈椭圆形，无自发性搏动。免疫细胞化学检测显示所培养细胞波形蛋白呈阳性反应。通过组织块贴壁法顺利分离人心房成纤维细胞。     

体外人脐动脉平滑肌细胞不同培养方法的应用研究

探索人脐动脉平滑肌细胞（human umbilical artery smooth muscle cell,hUASMC）体外培养稳定的模型。取人脐动脉，分别用贴块法、贴块＋酶解法进行原代培养，以免疫细胞化学的方法对细胞进行鉴定。结果显示：贴块法成功培养出平滑肌细胞，免疫细胞化学染色显示细胞内a-Actin阳性表达。贴块＋酶解法反复多次均失败。说明对于人脐动脉平滑肌细胞的原代培养，贴块法是一种较实用的方法。     

培养方法及胎牛血清浓度对人胎儿成纤维细胞体外生长的影响

采用单细胞培养法和组织块培养法从原代培养人胎儿成纤维细胞,并在不同体积分数胎牛血清(FBS)(0%、4%、8%、10%、12%)的条件下观察人胎儿成纤维细胞培养的状况并采用台盼蓝染色法进行活细胞计数.结果表明,早期由组织块培养法原代培养获取的细胞形态要比单细胞培养法原代培养获取的细胞稍好些,且在细胞传代后极少出现无法贴壁的死细胞.FBS对hFFs生长影响比较明显.在实际应用中,在体积分数8%FBS下,采用组织块培养法进行人胎儿成纤维细胞体外培养,效果良好.     

胚胎大鼠肺成纤维细胞的体外培养

目的:探讨胚胎大鼠肺成纤维细胞的体外培养条件.方法:采用胶原酶消化19d胎鼠肺组织块,经差速离心和反复贴壁法,分离、纯化肺成纤维细胞后采用加胎牛血清的DMEM培养液,进行细胞培养.用波形蛋白免疫细胞化学染色对所分离的细胞进行鉴定.结果:细胞培养24h后有一定量细胞贴壁,48h后贴壁细胞开始生长.结论:该实验方法可以成功地培养大鼠胚胎肺成纤维细胞.     

兔心房来源非心肌细胞的分离培养

建立一种兔心房组织来源的非心肌细胞体外培养模型,为心血管药理实验、病毒学实验及组织工程的研究提供实验平台.无菌条件下取兔心房壁组织,将组织分离成2 mm×1 mm小块,采用植块法以5行4列的形式种植于培养瓶中,加入M199或MEM培养基对兔心房组织进行原代培养.待长成单层时胰酶消化收集细胞,并进行传代培养和细胞冻存.该方法获得了大量活力良好的兔心房壁组织来源的非心肌细胞,倒置镜下观察细胞多呈短梭形,以及少量的三角形、柱形和卵圆形细胞,细胞核部位隆突,胞浆均匀清亮.经体外传代培养至16代,冷冻复苏以后,细胞仍生长良好.     

人脐静脉内皮细胞原代培养方法的建立

目的：探索并建立人脐静脉内皮细胞（删Ⅶc）体外稳定培养的方法。方法：以1％Ⅱ型胶原酶消化收集人脐静脉内皮细胞，用嘲加10％的胎牛血清进行培养，免疫细胞化学方法鉴定内皮细胞。结果：原代培养的内皮细胞镜下呈典型的铺路石或者鹅卵石样排列，3～4d时生长最快。5d左右融合；免疫细胞化学染色显示内皮细胞Ⅷ因子相关抗原表达阳性。结论：酶消化法获得的原代血管内皮细胞有较高的存活率，可以作为基础和临床研究的良好模型。     

人胚肝细胞分离培养研究

目的 探讨体外优化培养人胚肝细胞的方法：方法采用胰蛋白酶和聚乙烯吡咯烷酮(pvp)，胶原酶，胶原酶和pvp消化法分离人胚肝细胞，并比较3种方法对分离人胚肝细胞的效果。结果运用这三种方法均能成功地培养出原代肝细胞，并能够传代；但胶原酶和pvp消化法分离细胞效果最好，细胞贴壁生长能力强。三种消化方法其细胞存活率从高到低依次为胶原酶和pvp消化法、胶原酶消化法、胰蛋白酶和pvp消化法。结论人胚肝细胞的分离首选胶原酶和pvp消化法，使用该法在体外培养的人胚肝细胞生长良好，可用于肝细胞移植和生物人工肝等方面的研究。     

原代HUVECs分离培养关键影响因素分析

内皮细胞与心脑血管病变和癌症发生密切相关,人脐静脉内皮细胞(HUVECs)是最佳的研究工具.针对影响原代HUVECs培养的主要因素提出解决办法,建立稳定可靠的原代HUVECs培养方法.方法是取自剖宫产手术的脐带,消化法分离HUVECs,M199培养传代.针对消化条件、培养液、培养瓶/板处理、传代时间、胰酶浓度等因素考察.结果表明培养瓶/板预先2%明胶包被,采用I型胶原酶分离消化,含10%胎牛血清的M199培养,24h后换液,细胞生长至紧密后传代,O.05%胰酶传代消化,取4～5代细胞用于实验.认为经过控制原代HUVECs培养的主要影响因素,建立了不易污染、纯活度高的原代HUVECs培养方法.     

树鼩胸主动脉血管内皮细胞的分离培养与鉴定

目的 体外分离、培养树鼩(Tupaia belangeri)胸主动脉血管内皮细胞(vascular endothelial cells, VECs),并对培养细胞进行初步鉴定, 为新型实验动物树鼩的应用研究提供体外模型。方法 无菌取幼龄树鼩胸主动脉,采用组织块培养法和胰蛋白酶、胶原酶连续消化法分别进行树鼩胸主动脉血管内皮细胞分离,经完全培养液培养,倒置显微镜观察细胞形态,并用抗Ⅷ因子抗体进行荧光染色鉴定细胞。结果 经组织块培养法分离培养的血管内皮细胞,3 d有细胞贴壁,7 d后细胞从组织块中大量长出,15 d汇合为单层;酶消化法所得细胞12 h即贴壁,3～7 d生长较快,12 d汇合成单层,镜下观察发现细胞呈典型的铺路石状;两种方法分离所得原代细胞经体外培养传代,6代内,细胞生长均良好;利用血管内皮细胞标志分子Ⅷ因子进行免疫荧光鉴定后确定为阳性。结论 本研究采用简便的方法成功分离到了树鼩胸主动脉血管内皮细胞,为血管内皮细胞相关研究提供了实验模型。     

牦牛心脏原代成纤维细胞系的建立及鉴定

旨在建立牦牛胚胎心脏原代成纤维细胞系并对其进行鉴定.以牦牛胚胎心脏组织块为研究对象,运用组织块法对其进行分离培养获得原代细胞,使用胰酶消化法对原代细胞进行传代培养,通过MTT法检测细胞增殖活性,利用HE染色法及秋水仙素处理染色体鉴定细胞外形,选取4个成纤维标志性基因TGF-β、FSP-1、S100A4、Vimentin,通过RT-qPCR技术对基因的表达情况进行鉴定.结果显示成功将原代分离培养的成纤维细胞传代至11代;通过外型的一系列检测方法发现其符合成纤维细胞的外形,该细胞活力充足,生长规律符合“S”型生长曲线;荧光定量检测以上四种成纤维细胞特征性基因在不同代数中均表达且相对稳定,结果证实分离培养出的细胞符合成纤维细胞系的分子表达特征.本研究成功建立了牦牛胚胎心脏原代成纤维细胞系,集成了该细胞系的鉴定流程,为今后牦牛进一步研究提供相关的细胞系平台.     

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.     

An Analysis of Catherine＇s Character——Wuthering Heights

Wuthering Heights, Emily Bronte＇s only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.     

Lower Paleozoic oil relationships within Williston Basin, Canada

The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.     

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     

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