静态尿道压力测定和应力性尿道压力测定在女性真性压力性尿失禁诊断中的应用

目的探讨静态尿道压力测定(RUPP)和应力性尿道压力测定(SUPP)在女性真性压力性尿失禁(GSI)诊断中的应用价值。方法对30例临床诊断为GSI的患者进行RUPP及SUPP测定,比较其结果,以15例正常女性作为对照。结果静态尿道压力测定,SCI组的最大尿道关闭压和控制带长度较正常对照组小。应力性尿道压力测定中,患者压力传导率(PTR)及尿道关闭压(UCP)以多次咳嗽的平均值计算,GSI组PTR及UCP各为(0.63±0.24)、(-26.58±21.43cmH2O),而正常组PTR及UCP各为(1.78±0.12)与(83.42±37.23cmH2O)。两组间上述指标的差异均有显著性意义(p<0.01)。结论SUPP和RUPP在GSI的诊断中均具有一定意义,对于症状较轻的尿失禁患者的诊断,两者联合应用可以提高GSI的诊断水平。     

体外与肝细胞共培养对结肠癌细胞移行和增殖的影响

目的探讨肝细胞对结肠癌细胞的移行、增殖能力的影响。方法在体外建立结肠癌细胞与肝细胞三维共培养模型，将结肠癌细胞系Colon-26细胞培养在共培养系统上层，肝细胞培养在下层。实验分为3组：（1）Colon-26细胞与小鼠的肝细胞共培养（肝细胞组）。（2）与成纤维细胞共培养（纤维细胞组）。（3）Colon-26细胞单独培养（对照组）。观察肝细胞对结肠癌细胞的移行、增殖的影响，以及共培养液内表皮细胞生长因子（EGF）、血管内皮生长因子（VEGF）浓度的变化。结果肝细胞组的Colon-26细胞移行能力分别比纤维细胞组和对照组增强（t1=6．296，P=0．000；t2=5．322，P=0．000），Colon-26细胞增殖能力在肝细胞组亦分别比另两组增强（t1=3．905，P=0．005；t2=3．719，P=0．006）。肝细胞组的共培养液中EGF浓度明显升高（z=3．077，P=0．002）。结论在体外能建立结肠癌细胞与肝细胞的三维共培养模型。体外肝细胞能通过分泌生长因子促进结肠癌细胞的移行和增殖。     

40岁以下患者膀胱移行癌11例临床分析（附116例膀胱癌报告）

目的分析40岁以下患者膀胱移行细胞癌的临床和病理特点以判断其预后和肿瘤生物学特性。方法回顾性总结1997年7月至2004年7月收治的膀胱移行细胞癌患者116例,其中11例患者<40岁(9.5%),105例≥40岁(90.5%),分析比较其肿瘤分化、分期等临床和病理特点。结果11例<40岁患者中,4例为TaG1,4例为T1G1,2例为T1G2,1例为T2G2;随访4个月至7年,仅1例复发(9.1%)。而同期105例≥40岁患者中,15例为TaG1,11例为T1G1,38例为T1G2,12例为T2G1,29例分期分级为T2G2或更高;术后复发率为40%。结论<40岁膀胱移行细胞癌多为低分级和低分期,具有较低的术后复发率。     

艾滋病患者合并阴茎癌24例临床分析

目的 探讨艾滋病患者合并阴茎癌的临床诊断与治疗.方法 收集作者2012年3月至2015年2月援助博茨瓦纳期间所诊治的艾滋病合并阴茎癌患者共24例,对其临床表现、诊断、手术治疗方案、术后疗效等影响因素进行分析总结.结果 24例患者平均年龄38.6岁.临床表现为局部肿块(11/24,45.8％)、溃疡(9/24,37.5％)及丘疹(4/24,16.7％).发病时22例患者正接受HAART治疗,18例(75.0％)患者CD4水平较低(低于350/μL),存在明显的免疫抑制状态.病理类型为鳞状细胞癌22例,鳞癌合并卡波西肉瘤2例.22例患者进行手术治疗,2例T4期患者未手术治疗.2例阴茎鳞癌合并卡波西肉瘤,于发病后4个月和6个月得到确诊,并行阴茎全切加尿道会阴部造口术,术后恢复良好,未见肿瘤转移.结论 卡波西肉瘤是艾滋病患者常见的皮肤病损,阴茎卡波西肉瘤容易掩盖阴茎鳞状细胞癌的症状,从而耽误阴茎癌诊断与治疗,需要引起足够的注意.     

膀胱尿路上皮癌患者外周血T淋巴细胞凋亡蛋白Fas的表达

Objective To investigate the relationship between the Fas expression in peripheral blood T cells and bladder transitional cell carcinoma (TCC). Methods The Fas expression in peripheral blood T cells of 52 patients with TCC and 37 healthy people was detected by flowcytometry. The Fas-posi-tive rate was compared by t test between two designed groups. Results The Fas expression in CD4+ [(20.74±9.02)%] and CD8+[ (7.51±5.93 )% ] was increased in TCC patients as compared with controls ( P < 0. 01 ). Fas-positive CD8+ ceils were reduced in invasive TCC as compared with superficial TCC [ ( 5. 83±3.95 ) % vs ( 5. 83±3.95 ) %, P < 0.05 ], but there was no difference between primary and recurrent cases ( P > 0.05 ). Conclusion The abnormal Fas expression in peripheral blood T cells may play an important role in the development and progression of TCC.     

膀胱尿路上皮癌患者外周血T淋巴细胞凋亡蛋白Fas的表达

Objective To investigate the relationship between the Fas expression in peripheral blood T cells and bladder transitional cell carcinoma (TCC). Methods The Fas expression in peripheral blood T cells of 52 patients with TCC and 37 healthy people was detected by flowcytometry. The Fas-posi-tive rate was compared by t test between two designed groups. Results The Fas expression in CD4+ [(20.74±9.02)%] and CD8+[ (7.51±5.93 )% ] was increased in TCC patients as compared with controls ( P < 0. 01 ). Fas-positive CD8+ ceils were reduced in invasive TCC as compared with superficial TCC [ ( 5. 83±3.95 ) % vs ( 5. 83±3.95 ) %, P < 0.05 ], but there was no difference between primary and recurrent cases ( P > 0.05 ). Conclusion The abnormal Fas expression in peripheral blood T cells may play an important role in the development and progression of TCC.     

碱性成纤维细胞生长因子基因敲除肝细胞与结肠癌细胞的关系

我们通过建立一个全新的三维细胞共培养模型观察肿瘤细胞与宿主细胞之间的关系。同时观察来源于野生型及碱性成纤维细胞生长因子（FGF）-2基因敲除的小鼠的肝细胞对结肠癌细胞的移行、增殖的影响，以及共孵育一段时间后培养液内表皮细胞生长因子（EGF）、血管内皮生长因子（VEGF）浓度的变化。     

膀胱尿路上皮癌患者外周血T淋巴细胞凋亡蛋白Fas的表达

Objective To investigate the relationship between the Fas expression in peripheral blood T cells and bladder transitional cell carcinoma (TCC). Methods The Fas expression in peripheral blood T cells of 52 patients with TCC and 37 healthy people was detected by flowcytometry. The Fas-posi-tive rate was compared by t test between two designed groups. Results The Fas expression in CD4+ [(20.74±9.02)%] and CD8+[ (7.51±5.93 )% ] was increased in TCC patients as compared with controls ( P < 0. 01 ). Fas-positive CD8+ ceils were reduced in invasive TCC as compared with superficial TCC [ ( 5. 83±3.95 ) % vs ( 5. 83±3.95 ) %, P < 0.05 ], but there was no difference between primary and recurrent cases ( P > 0.05 ). Conclusion The abnormal Fas expression in peripheral blood T cells may play an important role in the development and progression of TCC.     

尿Cyfra21-1和B超联合检查在膀胱移行细胞癌术后监测中的意义

目的 评价尿Cyfra21-1和B超联合检查在膀胱移行细胞癌术后监测中的作用,探讨替代膀胱镜检查的可行性. 方法 对67例膀胱移行细胞癌患者术后定期行尿Cyfra21-1、B超和膀胱镜检查.电化学发光免疫分析(ECLIA)技术测定尿Cyfra21-1.以膀胱镜活检病理结果 为标准,评估尿Cyfra21-1和B超联合检查对膀胱移行细胞癌术后监测的意义.结果 67例膀胱移行细胞癌患者术后34个月内膀胱镜活检发现21例复发;尿Cyfra21-1检测阳性23例;B超检测阳性19例;尿Cyfra21-1和B超联合检查阳性26例,漏诊1例,漏诊率为4.76%.尿Cyfra21-1和B超联合检查与膀胱镜检查比较,经χ2检验无显著性差异(p>0.05).结论 尿Cyfra21-1和B超联合检查可以部分替代膀胱移行细胞癌患者术后的膀胱镜检查.     

5-杂氮-2′-脱氧胞苷对前列腺癌PC-3细胞生物学行为的影响

目的 检测E-cadherin基因在激素非依赖性前列腺癌(HIPC)细胞上的表达及启动子CpG岛甲基化,探讨甲基化抑制剂5-杂氮-2′-脱氧胞苷(5-Aza-CdR)对HIPC细胞的影响及意义.方法 2.5、5.0、10.0 μmol/L的5-Aza-CdR处理PC-3细胞72h后,甲基化特异性聚合酶链反应(MSP)方法检测CpG岛甲基化改变,逆转录—聚合酶链反应(RT-PCR)方法检测E-cadherin mRNA变化,Westernblot方法检测E-cadherin蛋白变化,Transwell小室检测细胞侵袭性改变.结果 HIPC的E-cadherin启动子CpG岛甲基化呈阳性,基因表达缺失,细胞侵袭性明显.经5-Aza-CdR作用之后,CpG岛甲基化阳性明显减弱(P＜0.05),E-cadherin基因恢复表达(P＜0.05),PC-3细胞的侵袭性下降约59.68％,且与药物的浓度呈正相关.结论 5-Aza-CdR可逆转PC-3细胞E-cadherin启动子CpG岛的异常甲基化,诱导mRNA转录和蛋白的表达,并降低癌细胞的侵袭性.