表达谱基因芯片筛选体外循环前后心肌细胞因子的变化

Objestive Systemic inflarmmation may be triggered by injury, hypothermia, ischemia-reperfusion and the contact of the blood with foreign body during cardiopulmonary bypass (CPB). To determine the application values of gene chip technique in the clinical practice and the study of cardiovascular stagery, as well as to provide clues to the study of inflammatory responess during CPB, microarry for gene expression profiles was used to identify the differences in the gene expression of myocardium between pre-and post- CPB. Methods Six adult patients who underwent CPB from March to May in 2003 were involved. Samples of right atrium were col- lected before and at immediate end of CPB. BD AtlasTM cDNA Expression Arrays was used to identify the differences in the gene ex- pression of cytokines. The results were compared with that of semi-quantative RT-PCR. Resellts The mean age of 6 patients (5 males and 1 female) was (32.67± 11.72) years. The baseline heart function was gradeⅡin 3 cases and grade Ⅲ in 3 other cases. The baseline left ventricular ejection fraction(LVEF)was (58.17±7.91)%. The mere duration was (91.67±43.88) minutes for CPB and was (58.67±43.46) minutes for aorta blocking. The minimum nasopharynx/rectal temperture was (29.37±1.90)℃/ (32.15±1.52)℃. Gene expression profiles of cytokines in the myocardium pre- and post-CPB were analysed successfully. The ex- pression of IL-6, IFN-γ,Wnt5a, TNFRSF1B, a member of tumor necrosis factor receptor superfamily, PIGF and MFNG in the myo- cardium were unpregulated after CPB. Conclusion Microarray technique is applicable in the study of cytokines changes dying CPB. cDNA microarray identified pleliminarily the differences in the gene expression between pre- and post-CPB. These genes may be in- valved in inflammation and other psthophysiological responses incuced by CPB. The myocardiym is probably one of the major sources of cytokines during CPB. Further study may be helpful in understanding the llngthe development of inflammation during CPB, and eventually, reducing the post-operative complications.     

V型胶原导致的硬皮病样重塑

最近,作者发现经人类V型胶原加弗氏佐剂免疫的新西兰兔发生器官纤维变性和血管炎,而这通常是由系统性硬化病引起的。因此,作者研究了微纤维形成过程,以明确这种硬皮病样模型中重塑变化的可能因素。另外,作者还对人类硬皮病患者(n=3)皮损进行了初步比较。对雌性新西兰兔(n=10)给     

生物化学和分子生物学检验与临床

060042胶质瘤脑脊液蛋白质指纹图诊断模型的建立及其在临床诊断中的应用；060043传染性非典型肺炎患者血清蛋白质指纹图谱分析；060044肝纤维化和血清标志物联合检测在肝病诊断中的应用；060045特发性肺纤维化患者血清Ⅲ型前胶原和层粘连蛋白测定的临床意义.     

中国汉坦病毒H82O5株G2糖蛋白基因的克隆及在真核细胞中的瞬时表达

从感染病毒乳鼠脑组织提取总RNA，采用RT－PCR和分子克隆技术将扩增到的G2糖蛋白基因插入含CMV启动子的pcDNA3.1/His质粒载体中，通过脂质体介导转染COS－7细胞，用SDS－PAGE、Western-blot及IFIA方法分别测定表达产物的相对分子量及特异性。结果证明获得正向插入的G2－pcDNA3.1/His重组表达质粒，表达产物的相对分子量为56ku，与理论预期大小一致，并且可与汉坦病毒H8205株的腹水抗体起特异反应。表明构建的G2－pcDNA3.1/His重组质粒所表达的蛋白为中国汉坦病毒株特有，能在哺乳动物细胞中表达并具有抗原性，重组质粒可应用于汉坦病毒的DNA疫苗研究。     

肝硬变的诊断

肝硬变的诊断李伟道ＳｕｂｊｅｃｔｈｅａｄｉｎｇｓＬｉｖｅｒｃｉｒｈｏｓｉｓ／ｄｉａｇｎｏｓｉｓＣｏｌａｇｅ／ａｎａｌｙｓｉｓＨｙｐｅｒｔｅｎｓｉｏｎ，ｐｏｒｔａｌ主题词肝硬变／诊断胶原／分析高血压，门脉中国图书资料分类号Ｒ５７５２１肝纤维化血清标...     

层粘连蛋白、Ⅳ胶原与门脉高压关系

层粘连蛋白(LM)是一种大分子非胶原性糖蛋白，属细胞外基质成分之一。当肝脏发生慢性损伤和纤维化时，在肝窦内可见明显LM沉积，它与Ⅳ型胶原等共同构成肝窦毛细血管样变，这是肝纤维化的一个特征性改变。本文对慢性肝炎、肝硬变及门脉高压需手术病人(术前1～2周)分组进行LM及Ⅳ胶原测定，观察它们在肝脏疾病时的变化，探讨其同肝硬变所致的门脉高压的关系。     

放射性肝纤维化过程的定量研究

经＾６０Ｃｏγ线照射大鼠肝区，通过光镜、电镜和图像分析仪、宣研究了照后１年肝脏的病理改变。结果表明，３０Ｇｙ组在照射后１年内逐渐发生了放射性肝纤维化病变。在肝纤维化发生过程中，肝细胞内糖原颗凿含量进行性减少，间质中胶原纤维含量进行性增加，网状纤维于照射１－３个月呈进行性增加。