高脂血症性胰腺炎

自1952年Klaskin等[1]报告1例原发性高脂血症导致胰腺炎反复发作后,现已明确地认识到高脂血症是胰腺炎的病因之一。鉴于其发生与血清胆固醇升高无关,而与血清三酰甘油(TG)水平显著升高密切相关,故高脂血症性胰腺炎又称为“高三酰甘油血症性胰腺炎”(hypertriglyceridaemia pancreatitis,HLP)。临床上通常以TG>11.30mmol/L(1000mg/dl)或血TG在5.65～11.3mmol/L且出现乳糜样血清即可诊断为HLP。12%～38%的AP患者伴有血脂的异常升高,在某些家族性高脂血症患者和妊娠高脂血症患者中常反复发生AP[2,3]。一、高脂血症的病因根据脂蛋白电泳…     

基质细胞衍生因子/趋化因子受体4轴参与胰腺癌细胞侵袭的体外实验研究

Objective To investigate the expression of chemokine receptor (CXCR)4 in human pancreatic cancer cell lines,and its association with proliferation,adhesion and invasion of pancreatic cancer cells.Methods The CXCR4 mRNA and protein in three pancreatic cancer cell lines were detected by RT-PCR and Western blotting,respectively.Confocal microscopy was used to detect the fluorescence intensity induced by SDF-lα in AsPC-1 cells.MTT test was performed to study the proliferation of pancreatic cancer cells.The invasive ability of pancreatic cell lines was determined by transwell invasion assay kit and the adhesive ability was detected by cell adhesive test in vitro.Results There were expressions of CXCR4 mRNA and protein in different extent in three pancreatic cancer cell lines.The strong expression was seen in AsPC-1 cell line,but weak expression in SW1990 cell line.The CXCR4 was functional expressed on AsPC-1 ceils.SDF-1α improved the proliferation,adhesion and invasion of three pancreatic cancer cell lines,especially in AsPC-1 cell line,while the proliferation in SW1990 cell line was weak.But all above effects of the SDF-1α could be inhibited by AMD3100.Conclasions CXCR4 mRNA and protein were expressed in pancreatic cancer cell lines.The efficacy that SDF-1 can increase the invasive ability of pancreatic cancer ceils through SDF-1/CXCR4 axis is closely related to the expression of CXCR4.     

基质细胞衍生因子/趋化因子受体4轴参与胰腺癌细胞侵袭的体外实验研究

Objective To investigate the expression of chemokine receptor (CXCR)4 in human pancreatic cancer cell lines,and its association with proliferation,adhesion and invasion of pancreatic cancer cells.Methods The CXCR4 mRNA and protein in three pancreatic cancer cell lines were detected by RT-PCR and Western blotting,respectively.Confocal microscopy was used to detect the fluorescence intensity induced by SDF-lα in AsPC-1 cells.MTT test was performed to study the proliferation of pancreatic cancer cells.The invasive ability of pancreatic cell lines was determined by transwell invasion assay kit and the adhesive ability was detected by cell adhesive test in vitro.Results There were expressions of CXCR4 mRNA and protein in different extent in three pancreatic cancer cell lines.The strong expression was seen in AsPC-1 cell line,but weak expression in SW1990 cell line.The CXCR4 was functional expressed on AsPC-1 ceils.SDF-1α improved the proliferation,adhesion and invasion of three pancreatic cancer cell lines,especially in AsPC-1 cell line,while the proliferation in SW1990 cell line was weak.But all above effects of the SDF-1α could be inhibited by AMD3100.Conclasions CXCR4 mRNA and protein were expressed in pancreatic cancer cell lines.The efficacy that SDF-1 can increase the invasive ability of pancreatic cancer ceils through SDF-1/CXCR4 axis is closely related to the expression of CXCR4.     

基质细胞衍生因子/趋化因子受体4轴参与胰腺癌细胞侵袭的体外实验研究

Objective To investigate the expression of chemokine receptor (CXCR)4 in human pancreatic cancer cell lines,and its association with proliferation,adhesion and invasion of pancreatic cancer cells.Methods The CXCR4 mRNA and protein in three pancreatic cancer cell lines were detected by RT-PCR and Western blotting,respectively.Confocal microscopy was used to detect the fluorescence intensity induced by SDF-lα in AsPC-1 cells.MTT test was performed to study the proliferation of pancreatic cancer cells.The invasive ability of pancreatic cell lines was determined by transwell invasion assay kit and the adhesive ability was detected by cell adhesive test in vitro.Results There were expressions of CXCR4 mRNA and protein in different extent in three pancreatic cancer cell lines.The strong expression was seen in AsPC-1 cell line,but weak expression in SW1990 cell line.The CXCR4 was functional expressed on AsPC-1 ceils.SDF-1α improved the proliferation,adhesion and invasion of three pancreatic cancer cell lines,especially in AsPC-1 cell line,while the proliferation in SW1990 cell line was weak.But all above effects of the SDF-1α could be inhibited by AMD3100.Conclasions CXCR4 mRNA and protein were expressed in pancreatic cancer cell lines.The efficacy that SDF-1 can increase the invasive ability of pancreatic cancer ceils through SDF-1/CXCR4 axis is closely related to the expression of CXCR4.     

基质细胞衍生因子/趋化因子受体4轴参与胰腺癌细胞侵袭的体外实验研究

Objective To investigate the expression of chemokine receptor (CXCR)4 in human pancreatic cancer cell lines,and its association with proliferation,adhesion and invasion of pancreatic cancer cells.Methods The CXCR4 mRNA and protein in three pancreatic cancer cell lines were detected by RT-PCR and Western blotting,respectively.Confocal microscopy was used to detect the fluorescence intensity induced by SDF-lα in AsPC-1 cells.MTT test was performed to study the proliferation of pancreatic cancer cells.The invasive ability of pancreatic cell lines was determined by transwell invasion assay kit and the adhesive ability was detected by cell adhesive test in vitro.Results There were expressions of CXCR4 mRNA and protein in different extent in three pancreatic cancer cell lines.The strong expression was seen in AsPC-1 cell line,but weak expression in SW1990 cell line.The CXCR4 was functional expressed on AsPC-1 ceils.SDF-1α improved the proliferation,adhesion and invasion of three pancreatic cancer cell lines,especially in AsPC-1 cell line,while the proliferation in SW1990 cell line was weak.But all above effects of the SDF-1α could be inhibited by AMD3100.Conclasions CXCR4 mRNA and protein were expressed in pancreatic cancer cell lines.The efficacy that SDF-1 can increase the invasive ability of pancreatic cancer ceils through SDF-1/CXCR4 axis is closely related to the expression of CXCR4.     

脂肪性肝病与胃食管反流病的相关性研究

目的评估脂肪性肝病(FLD)与胃食管反流病GERD之间的关系。方法选取2 000例受试者,采用较简便的胃食管反流病问卷(GerdQ)作为初筛GERD诊断标准,对入选者均进行腹部超声波等检查,分析FLD与GERD关系。结果对2 000例患者利用GerdQ评估GERD诊断情况,有176例(8.8%)诊断为GERD,女68人(38.64%),男108人(61.36%);脂肪肝患者760例,患病率38.0%,在脂肪肝组中,男女性GERD症状的GerdQ阳性率分别为13.77%和12.24%,两者无明显差异(P>0.05)。脂肪肝人群发生GERD症状的患病率与对照组存在统计学差异(P<0.05)。结论脂肪肝与GERD显著相关,控制脂肪肝发展可以降低GERD发病率。     

局部解剖操作课教学初探

为了深化教学改革 ,提高教学质量 ,在总结以往教学的基础上 ,我室从九七级本科生开始 ,将解剖学分为系统解剖学、局部解剖学和局解操作等三个教学阶段。97级局解操作课结束后 ,要求学生书面总结对该门课程教学的体会。并就解剖教学改革组织了教学研讨会 ,根据教师自己教学的体会和结合学生的反馈意见 ,对如何开好局解操作课进行了初步探讨。主要内容如下 :1 .如何处理好系解、局解大课讲授和局解操作三段教学的任务关系 ,以避免它们之间不必要的重复 ;2 .局解操作课程分为各局部的理论讲授、实地解剖、操作质量评估及课堂提问、阶段解剖内容…     

脂多糖对化学诱癌大鼠抗氧化系统的选择性损害作用

目的：观察脂多糖对化学诱癌大鼠抗氧化系统的影响。方法：用０３ｇ／Ｌ硫代乙酰胺给大鼠饮用６个月,诱发肝硬化癌变模型。大鼠在实验前作脾切除造成肠源性内毒素血症或／和在肝硬化形成时给予外源性脂多糖。结果：无论是外源性或／和肠源性内毒素均可提高肝硬化大鼠内毒素血症水平和肝癌发生率增加趋势。肝内丙二醛（ＭＤＡ）含量、超氧化物歧化酶（ＳＯＤ）活性不同程度地增高、而谷胱甘肽过氧化物酶（ＧＳＨ－Ｐｘ）和过氧化氢酶（ＣＡＴ）活性呈降低趋势,并与ＭＤＡ浓度呈明显负相关（Ｐ＜００５）。结论：抗氧化酶类代谢紊乱、特别是ＣＡＴ活性降低可能与肝硬化癌变的发生发展有关     

肺癌100例诊断与治疗分析

为使肺癌患者能够得到早期诊断和治疗，将１９８９年至１９９５年内科住院１００例肺癌患者进行年龄、吸烟、临床表现、Ｘ线特征、诊断方法和治疗措施进行分析比较，Ｘ线检查特征发现肺癌高发年龄在４０岁～７０岁（占６０％），１０％的患者小于４０岁，有趋于年轻化趋势，有６２％患者有吸烟史，吸烟与肺癌发生有关，临床表现无特异性，全身表现多样化，多种诊断方法有利于提高肺癌确诊率纤支镜法５７％，脱落细胞学（胸水、痰）２２％，活组织检查（淋巴结、胸膜）１７％，早期诊断困难，晚期肺癌应用以化疗或放疗为主的综合治疗，有利于提高患者的生存率和改变生活质量，全身化学治疗的总有效率５６．７％，局部化学治疗的总有效率６３．６％。