GagA^＋幽门螺杆菌与胃粘膜病理变化的关系

幽门螺杆菌（Helicobacter pylori．Hp）感染与慢性胃炎、消化性溃疡及胃癌的发生密切相关，研究认为Hp的毒力基因cagA与Hp的致病密切相关。CagA^＋Hp也是癌前病变萎缩性胃炎、肠上皮化生和异型增生的重要病因和促进因子，可增加胃癌发生的危险性。我们子2005年在胃癌高发区兰州地区开展了^14C—UBT和血清Hp-CagA抗体测定及胃粘膜组织病理学检查。旨在探讨CagA^＋Hp感染与胃粘膜肠上皮化生、异型增生及胃癌发生的关系。发现CagA^＋Hp具有较强的促进胃粘膜萎缩、肠型化生和异型增生作用，感染CagA^＋Hp可能是胃癌发生的危险因素之一。     

CagA+幽门螺杆菌与胃粘膜病理变化的关系

幽门螺杆菌(Helicobacter pylori,Hp)感染与慢性胃炎、消化性溃疡及胃癌的发生密切相关,研究认为Hp的毒力基因CagA与Hp的致病密切相关.CagA Hp也是癌前病变萎缩性胃炎、肠上皮化生和异型增生的重要病因和促进因子,可增加胃癌发生的危险性.我们于2005年在胃癌高发区兰州地区开展了14C-UBT和血清Hp-CagA抗体测定及胃粘膜组织病理学检查,旨在探讨CagA Hp感染与胃粘膜肠上皮化生、异型增生及胃癌发生的关系.发现CagA Hp具有较强的促进胃粘膜萎缩、肠型化生和异型增生作用,感染CagA Hp可能是胃癌发生的危险因素之一.     

CagA+幽门螺杆菌与胃粘膜病理变化的关系

幽门螺杆菌(Helicobacter pylori,Hp)感染与慢性胃炎、消化性溃疡及胃癌的发生密切相关,研究认为Hp的毒力基因CagA与Hp的致病密切相关.CagA+Hp也是癌前病变萎缩性胃炎、肠上皮化生和异型增生的重要病因和促进因子,可增加胃癌发生的危险性.我们于2005年在胃癌高发区兰州地区开展了14C-UBT和血清Hp-CagA抗体测定及胃粘膜组织病理学检查,旨在探讨CagA+Hp感染与胃粘膜肠上皮化生、异型增生及胃癌发生的关系.发现CagA+Hp具有较强的促进胃粘膜萎缩、肠型化生和异型增生作用,感染CagA+Hp可能是胃癌发生的危险因素之一.     

胃粘膜活检切片中幽门螺杆菌感染的临床病理分析

探讨幽门螺杆菌（Hp)与胃粘膜病变的相互关系。应用Giemsa染色和Warthin-Starry染色方法检测645例胃粘膜活检标本中的Hp,总检出率为64．65％，其顺序为慢性浅表性胃炎＜慢性萎缩性胃炎＜胃溃疡＜胃癌。Hp感染与胃炎萎缩性，活动性，伴肠化生，腺上皮不典型增生，淋巴滤泡形成显著相关（P＜0．01）。故认为Hp感染可导致胃粘膜萎缩，肠化生，不典型增生，并与胃癌发生有关。     

达克普隆治疗消化性溃疡及根除幽门螺杆菌40例疗效观察

消化性溃疡是消化系统的常见病之一，多年来对其治疗一直延用抗酸剂和Ｈ２－受体阻滞剂等药物。经多年研究证实：ＨＰ是消化性溃疡，慢性胃炎，慢性胃窦炎、粘膜相关性淋巴组织样淋巴瘤的主要致病因素，并与胃癌有密切关系，因此，根除ＨＰ已成为防治这些疾病的主要方法之一，虽然目前ＨＰ根除方案较多，但不十分理想，为此我们采用达克普隆治疗消化性溃疡及根除ＨＰ，旨在探索一种消化性溃疡的根治方法。     

幽门螺杆菌与胃粘膜相关淋巴瘤

目的：回顾性研究了２７例胃粘膜相关淋巴组织（ＭＡＬＴ）淋巴瘤中幽门螺杆菌（Ｈｐ）、淋巴滤泡分布以及胃ＭＡＬＴ淋巴的发生机理。方法：采用光镜、免疫组化及电镜检查分析。结果：胃ＭＡＬＴ淋巴瘤表面有ＨＰ２５例（９２．６％），肿瘤旁粘膜有ＨＰ２４例（８８．９％），明显高于对照组。胃ＭＡＬＴ淋巴瘤ＨＰ阳性定量多为２－３级６肝ＭＡＬＴ淋巴均有淋巴滤泡，其中１４例见于胃窦部，例见于胃体部，有淋巴滤泡ＨＰ     

用酶标凝集素检测胃液中的胃蛋白酶

采用辣根过氧化物酶（ＨＲＰ）标记ＡＬＬ，通过夹心酶联法检测各种胃病患者胃液中的胃蛋白酶。结果：胃蛋白酶在正常组（１５例）、胃炎组（２８例）、十二指肠溃疡组（２５例）、胃溃疡组（２５例）及胃癌组（１３例）中的含量无显著性差异。但胃液ｐＨ值≥５的胃蛋白酶含量明显高于ｐＨ值＜４的酶含量。表明胃粘膜屏障的局部缺陷使之对胃蛋白酶抵抗能力下降，可能与消化性溃疡的发生关系更为密切。     

纳氏测氨法半定量诊断HP感染的方法及其应用

对纳氏测氨法尿素酶试验（ＮＵＴ法）进行半定量标准化后，进一步建立了纳氏测氨半定量诊断人胃粘膜中幽门螺杆幽（ＨＰ）感染程度的方法，使ＮＵＴ法可同时用于定性及半定量诊断ＨＰ感染及感染程度．对经过半定量检测的３５０例患者作分析，显示轻、中、重度感染比率分别为５４．６％、３４．０％及１１．４％，另对其中１８２例慢性浅表性胃炎进行病变程度与ＨＰ感染程度的相关性分析，表明慢性浅表性胃炎的病变程度与ＨＰ的感染程度呈明确的正相关性（ｐ＜０．０５），提示胃部疾病的恶性演变尚与感染程度有关．     

用酶标凝集素检测胃液中的胃蛋白酶

采用辣根过氧化酶（ＨＲＰ）标记ＡＬＬ，通过夹心酶联法检测各种胃病患者胃液中的 胃蛋白酶。结果：胃蛋白酶在正常组（１５例）、胃炎组（２８例）、十二指肠溃疡组（２５例）、胃溃疡组（２５例）及胃癌组（１３组）中的含最无显著性差异。但胃液ｐＨ值≥５的胃蛋白酶含量明显高于ｐＨ〈４的酶含量。表明胃粘膜屏障的局部缺陷使之对胃蛋白酶抵抗能力下降，可能与消化性溃疡的发生关系更为密切。     

Survivin基因在胃癌组织中的表达及其与凋亡的相关性研究

目的研究胃癌组织中Survivin基因的表达及其与凋亡的关系。方法应用免疫组织化学SP法检测30例正常胃粘膜及120例胃癌组织中Survivin基因的表达;采用脱氧核糖核酸末端转移酶介导的缺口末端标记（TUNEL）技术,检测其凋亡指数。结果30例正常胃粘膜组织Survivin基因均不表达,胃癌组织中Survivin阳性率为62．5％（75／120）,二者有显著性差异（P〈0．01）;Survivin基因表达与组织分化程度和TNM分期密切相关（P〈0．05）。胃癌组织凋亡指数（AI）和TNM分期、组织分化程度密切相关（P〈0．05）。Survivin基因表达水平与凋亡指数呈显著负相关（P〈0．01）。结论Survivin基因在胃癌的发生发展过程中可能起重要作用。Survivin基因的表达可抑制胃癌细胞凋亡、促进胃癌细胞增殖。     

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     

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     

Journal of Donghua University ( English Edition) Contents of Volume 31

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