乳腺癌保乳治疗的进展

乳腺癌的保乳手术（（breast conservation therapy，BCT）在欧美等发达国家是治疗乳腺癌的常规方法，并越来越受到更多患者的青睐，已成为治疗早期乳腺癌的首选方案。近年来，随着BCT在乳腺癌治疗中地位的提高，人们对BCT的研究更为广泛和深入，在新辅助治疗的支持下，BCT的应用范围进一步扩大。[第一段]     

妊娠期血液流变学的观察

妊娠本属正常现象，但由于腹内胎儿使母体代谢处于应激状态，孕妇的物质代谢过程及内分泌状态与未妊娠时都有许多区别。故母体生物化学、生理学等状况都发生很大变化。为了观察妊娠期血液流变学的特点，我们对100例妊娠期妇女进行了血液流变学指标、甘油三酯、胆固醇的检测，其结果如下：     

滋阴凉血活血法治疗系统性红斑狼疮260例

系统性红斑狼疮 ,是一种自身免疫性疾病 ,以女性多见 ,男女比例为 1∶10 ,发病年龄大多为 15～ 35岁。现代医学治疗系统性红斑狼疮主要用激素和免疫抑制剂来控制症状 ,虽对急性期有明显的缓解作用 ,但难以阻止红斑狼疮对心、肾、肝、脑等重要器官的损害 ,且长期服用激素会使人体自身分泌皮质激素的功能下降 ,而出现满月脸、肥胖、水肿、内分泌紊乱、骨质疏松等副反应。笔者以滋阴凉血活血法治疗系统性红斑狼疮 2 6 0例 ,疗效满意 ,避免了激素的副反应。1　临床资料1998年 3月— 2 0 0 2年 12月 ,于门诊收集系统性红斑狼疮 2 6 0例。均符合 1…     

体外凝集和新鲜、液态保存及冷冻保存人类血小板血栓素A2产生之间的联系，激活剂、pH值、血浆和盐水重悬浮的影响

背景 检测新鲜以及保存的血小板的质量的方法已有不少，包括血小板的数量、形态学、血小板介质的pH值，低渗反应，以及激活剂引起的凝集。本研究的目的在于评估在体外受激活剂刺激后，产生凝集反应和血栓素A2，以评估新鲜的和保存后的血小板的功能。设计和方法经单采制备的血小板于22℃保存5天，然后于6％的二甲基亚砜冷冻保存于-80℃，经解冻、清洗、在保存介质中重新悬浮。测定激活剂、pH值和介质成分对血小板的凝集，以及对刺激后的血小板产生血栓素A2的影响。     

细胞周期调控蛋白与口腔癌相关性

本文对细胞周期调控蛋白作用机理以及在口腔癌发生中的意义作一综述。     

心理社会因素对医学生自信水平的影响

目的寻找影响医学生自我评价的有关因素,为提高他们的自信程度提供参考.方法采用个人评价问卷(PEI)、应付方式 问卷、症状自评量表(SCL-90)及一般情况调查表(自制)对450医学生进行调查.结果性别、身高、体重、班委、恋爱、母亲文化程度、父亲健康状况、 家庭经济状况,解决问题、求助等因素与PEI量表总分呈显著正相关,SCL-90各因子呈显著 分和总均分及自责、幻想、退缩、合理化与PEI量表总分负相关.结论医学生的自我评价受到自身心理状况、应付方式、家庭状况等因素的影响.     

不同门奇断流术式对门静脉高压症犬食管下段血管再生的影响

Objective To explore the effect on blood vessel regeneration of distal esophagus in ca-nines of portal hypertension with liver cirrhosis after different procedures with paraesophagastrie devascular-ization. Methods Portal hypertension models were produced in canines by subcutaneous injection of 60% CC14 combined with food restriction. Forty eight model canines were randomly divided into 4 groups: group A, traditional paraesophagastrie devascularization;group B, selective paraesophagastric devascularization;group C, paraesophagastric devascularization plus distal esophageal transaction and reanastomosis with sta-pler;group D,control group. Every group had 12 canines which were randomly divided into A1 ,B1 ,C1 ,D1, A2,B2,C2 and D2 groups after the operation. Canines in groups A1 ,B1 ,C1 and D1 were executed at first month after the operation,and those in groups A2, B2, C2 and D2 were executed at the 6th month after the operation. The distal esophagus was segmented when the canines were executed. The upside and downside of the stoma in group C were distinguished and signed as Ca and Cb. Immunohistochemieal methods were used to detect VEGF,CD34 and FVⅧ-Rag,blood vessel-related factors,in lower esophagus. Results The expres-sion levels of VEGF and CD34 MVD,FⅧ-Rag MVD in groups A1 ,B1 and C1 were lower than those in group D1 one month after the operation (P <0.05). All the indices in group B1 were lower than those in groups A1 and Clb,but higher than those in group Cla (P <0.05). The indices in group Cla were lower than those in group C1b (P < 0.05 ). The indices in groups A2 and B2 were higher than those in groups A1 and B1, re-spectively at the 6th month after the operation (P <0.05). They were higer in outer membrane in group C1a than in group C2a (P <0.05). The indices in group C2b were higher than those in group Clb (P<0.05). Conclusion At the first month after operation, the expression of blood vessel-related factors was declined in three different procedures of paraesophagastric devascularization,which indicated that all three different pro-cedures could diminish the vessels in distal esophagus. The effect in group C was most obvious among all groups. At the 6th month after traditional paraesophagastrie devascularization and selective paraesophagastrie devascularization, the expression of blood vessel-related factors in distal esophagus was declined. But there were no significant changes in the expression of blood vessel-related factors in distal esophagus after parae-sophagastric devascularization plus distal esophageal transaction and reanastomosis with stapler. It indicated that the blood vessel regeneration in paraesophagastric devascularization pins distal esophageal transaction and reanastomosis with stapler was inferior to that in other procedures.     

Ⅰ、Ⅲ型前胶原基因第2外显子核酶对靶RNA的体外切割活性的研究

目的 体外研究锤头型α1Ⅰ型及Ⅲ型前胶原基因第2外显子片段核酶对各自靶RNA分子的切割活性及反应条件。同时观察两反义核酶对瘢痕中成纤维细胞胶原合成的影响。方法 将含α1Ⅰ型及Ⅲ型前胶原基因第2外显子片段的重组质粒(pT-Ⅰ、pT-Ⅲ)，经体外^32P标记转录后形成产物靶RNA。同时将含特异性核酶基因的重组质粒(pT-gⅠ、pT-gⅢ)进行非标记的体外转录，产物(核酶)与各自的^32P-靶RNA按不同的条件混和反应，电泳后放射自显影观察结果。将构建好的核酶以脂质体包裹后导入培养的成纤维细胞内，采用图像分析法观察核酶对成纤维细胞Ⅰ型、Ⅲ型胶原蛋白mRNA合成的影响。结果 两种核酶在37℃、42℃均能有效切割各自的靶RNA，对Mg^2 浓度的要求范围较宽(10～20mmol／L)；反应温度从65℃逐渐降至并维持在37℃的条件下核酶切割活性显提高。Ⅰ、Ⅲ型胶原蛋白mRNA的表达明显降低，胶原蛋白生成降低，胶原生成明显受抑制。结论 针对α1Ⅰ型及Ⅲ型前胶原基因第2外显子片段的核酶能有效地在体外对靶RNA进行切割并能有效地抑制瘢痕中成纤维细胞胶原的合成。     

酒精致精神障碍78例临床分析

随着经济社会的发展，人们的生活水平不断提高，我国酒的消耗及人均使用量明显增加，酒精引发疾病已成为严重危害人民身心健康的公共卫生问题和社会问题，现将我院收治的78例酒精致精神障碍分析报道如下：     

安徽省疾病预防控制机构应对流行性感冒疫情现场处置能力调查

为了解安徽省各级疾病预防控制机构应对流行性感冒(简称流感)大流行时的现场处置能力,为制定流感大流行防控策略和措施提供科学依据,2009年1-3月份,在安徽省开展了应对流感大流行和人禽流感的能力调查.