慢性非细菌性前列腺炎/慢性盆腔疼痛综合征患者前列腺液中炎症因子差异表达的临床意义

Objective To investigate the role of inflammatory cytokines in the pathogenesis of chronic non-bacterial prostatitis/chronic pelvic pain syndrome (CAP/CPPS) patients. Methods The 38 cases with CAP/CPPS patients (18 cases of CAP and 20 cases of CPPS) and 20 cases of healthy controls were selected. The differential expressions of 40 kinds of inflammatory cytokines were detec-ted by antibody arrays in prostate fluid. Results The inflammatory cytokines which increased more than 1.5 times expression have been found. There were seven kinds in CAP including monocyte che-moattractant protein (MCP)-1, solution tumor necrosis factor receptor Ⅱ(s TNF R Ⅱ), platelet-de-rived growth faetor-BB (PDGF-BB), interleukin (IL)-β, IL-11、IL-6、MCP-2 and five kinds in CPPS groups including MCP-1、PDGF-BB、MCP-2、s TNF R Ⅱ、It-11 respectively, compared with healthy control group. The cluster analysis results showed that protein expression of Monocyte chemoattrac-tant protein 1 (MCP-1)and platelet-derived growth factor BB (PDGF-BB) were significantly increased in CAP (3.47 and 2.07 times) and CPPS (2.25 and 2.19 times) compared with healthy control group and were the final polymerization of inflammatory cytokines. The protein expression of interleukin 1 β (IL-1 β), MCP-1 and soluble tumor necrosis factor Ⅱ (s TNF R Ⅱ) in CAP group was increased more than 1.85,1.55,1.67 times compared with CPPS group. Conclusions Elevated expression of inflammatory cytokines may play an important role in the course of CAP/CPPS disease. The extent of the inflammatory response of CAP was higher than CPPS. The inflammatory factors of MCP-1 and PDGF-BB could serve as a novel diagnostic marker.     

Role of angiotensin Ⅱ and JAK2 signal pathway in transdifferentation of renal tubular cells in mice after acute ischemic followed by reperfusion

Objective To investigate the effect of angiotensin (Ang) Ⅱ and its Janns-activated kinase-2 (JAK2) signal pathway in transdifferentiation of renal tubular cells under the challenge of acute ischemic reperfusion injury.Methods Models of acute ischemic reperfusion injury were established and the level of local Ang Ⅱ ,a key element of renin-angiotensin system (RAS),in kidney was measured using radioimmunity technique.The expression of α-smooth muscle actin (α-SMA),a phenotype of mesenchymal cells,was detected by RT-PCR and inununohistochemistry methods.Renal tubule cells ( NRK-52E) were cultured with various concentration of Ang Ⅱ ,followed by blocking of PD123319,Ang U receptor 2 antagonist,and AG490,an inhibitor of JAK2 signal pathway.Results Ang 0 of kidney tissue increased immediately after acute ischemic-reperfusion injury,in time dependent fashion.Expression of α-SMA in renal tubule cells was found at 48 hours after ischemic-reperfusion injury and in NRK-52E cells treated by high concentration of Ang Ⅱ and was dose and time dependent.The peak of α-SMA expression was seen after 30 minute treatment at the dose of 10-9'mol/L,which was interrupted by both of PD123319 and AG490.Conclusions Transdifferentiarion of renal tubular epithelial cells occurs under acute ischemic- reperfusion injury.Local renin-angiotensin system may play a role in the transdifferentiation of TEC through AT2 receptor and its JAK2 signal pathway.     

SEN病毒ORF2基因序列和抗原性的初步分析

目的对SEN病毒(SENV)开放阅读框(ORF)2基因进行序列测定分析和原核表达,并对表达蛋白进行抗原性分析。方法用聚合酶链反应(PCR)方法扩增SENVORF2基因,对该基因进行序列测定、系统进化分析,双酶切扩增产物与原核表达载体pRSETB构建成重组质粒,诱导表达后进行SDSPAGE和免疫印迹分析。结果该株SENVORF2与北京株(AY072045)核苷酸同源性为97%,氨基酸同源性为59%;与日本株(AB059352)同源性分别为90%和56%。含有SENVORF2质粒的菌株表达相对分子质量约为19×103的融合蛋白,免疫印迹证明该融合蛋白能与SENVDNA阳性血清发生特异反应。结论表达了158个氨基酸的SENVORF2原核表达蛋白具有一定的抗原活性。     

Role of angiotensin Ⅱ and JAK2 signal pathway in transdifferentation of renal tubular cells in mice after acute ischemic followed by reperfusion

Objective To investigate the effect of angiotensin (Ang) Ⅱ and its Janns-activated kinase-2 (JAK2) signal pathway in transdifferentiation of renal tubular cells under the challenge of acute ischemic reperfusion injury.Methods Models of acute ischemic reperfusion injury were established and the level of local Ang Ⅱ ,a key element of renin-angiotensin system (RAS),in kidney was measured using radioimmunity technique.The expression of α-smooth muscle actin (α-SMA),a phenotype of mesenchymal cells,was detected by RT-PCR and inununohistochemistry methods.Renal tubule cells ( NRK-52E) were cultured with various concentration of Ang Ⅱ ,followed by blocking of PD123319,Ang U receptor 2 antagonist,and AG490,an inhibitor of JAK2 signal pathway.Results Ang 0 of kidney tissue increased immediately after acute ischemic-reperfusion injury,in time dependent fashion.Expression of α-SMA in renal tubule cells was found at 48 hours after ischemic-reperfusion injury and in NRK-52E cells treated by high concentration of Ang Ⅱ and was dose and time dependent.The peak of α-SMA expression was seen after 30 minute treatment at the dose of 10-9'mol/L,which was interrupted by both of PD123319 and AG490.Conclusions Transdifferentiarion of renal tubular epithelial cells occurs under acute ischemic- reperfusion injury.Local renin-angiotensin system may play a role in the transdifferentiation of TEC through AT2 receptor and its JAK2 signal pathway.     

抗HPT单克隆抗体的制备与生物学特性鉴定

目的：制备抗潮霉素B磷酸转移酶(HPT)的单克隆抗体(McAb)，建立一种快速检测转基因作物中该选择标记基因HPT编码蛋白的方法。方法：用基因重组潮霉素B磷酸转移酶(HPT)抗原免疫BALB/C小鼠，采用杂交瘤技术制备McAb。选择不同的抗原决定簇与兔抗HPT多抗配对，建立双抗夹心ELISA检测HPT抗原。结果：筛选出四株稳定分泌抗HPT单抗的杂交瘤细胞株，IgG亚类鉴定均为IgG1，ELISA检测证实单抗可特异性识别细胞培养上清、重组子菌体裂解产物中及纯化出的HPT蛋白。结合位点测定实验表明4株单抗是针对不同的抗原决定簇，与多克隆抗体组成双抗夹心ELISA法，均可较好地检测到HPT抗原。检测的灵敏度为30ng／ml，且与别的无关抗原无交叉反应性。结论：4株杂交瘤细胞株特异性好，亲和力强，组成双抗夹心ELISA法可用于快速、灵敏检测HPT抗原。     

斯蒂克勒综合征5例分析

目的 探讨斯蒂克勒综合征的眼部及其他临床表现。方法 对一个家第三代５例患者进行临床分析。结果 ５例患者主要眼部表现为不同程度的近视、白内障、玻璃体变性、尖发难治的视网膜脱离。患者身材疲长,下颌稍小,无关节病和脊柱异常。结论 我勒综合征是一种罕见的以眼部症状为特征的遗传性闰病。     

儿童体外循环围术期内源性一氧化氮浓度的变化

目的 探讨儿童体外循环期间内源性一氧化氮(NO)浓度的变化及意义。方法 将先心病患儿分为非紫绀型与紫绀型组，非紫绀型再分为肺高压与非肺高压组，于转流前、主动脉阻断后、转流结束、术后24h、术后72h和术后7d测定NO浓度。结果 主动脉阻断后略有降低，体外循环结束时显著增高，术后第1d仍处于较高水平，术后第3d恢复正常；在体外循环期间紫绀型与非紫绀型先心病血浆NO浓度的比较有显著意义；非肺高压组NO浓度升高显著，肺高压组则升高较少，两组术后24h及72h的比较有显著意义。结论 本实验显示术后24h、术后72hNO浓度升高显著，可能与体外循环所致的炎性反应有关；肺高压组则升高较少，易发生肺高压危象，这也是术后NO治疗肺高压危象的基础。     

Mononucleosis syndrome and coincidental human herpesvirus-7 and Epstein-Barr virus infection

Two girls (a 5 year old and a 21 month old) experiencing mononucleosis syndrome with coincidental human herpesvirus (HHV)-7 and Epstein-Barr virus (EBV) infections are described. One patient had primary HHV-7 infection and reactivated EBV infection. The other had primary HHV-7 and EBV infections. These cases indicated that HHV-7 is capable of inducing infectious mononucleosis-like illness. Multiple herpesvirus infection in one of the patients also suggests that interaction among herpesviruses can occur in vivo. The consequence of this interaction may have clinical implications.     

解脲支原体在几种常见妇科疾病中的感染率分析

目的探讨解脲支原体在我国妇科病人中的感染率，为临床诊断和治疗提供必要的数据和方法。方法运用聚合酶链反应技术扩增解脲支原体MB抗原基因对689例的患者宫颈分泌物进行检测，并统计分析。结果在几中常见的妇科病人中解脲支原体感染率平均为36．2％。经统计分析发现在子宫肌瘤、盆腔炎、宫外孕和功能性出血病人中感染率明显升高，其中阴道炎中UU感染率最高。结论解脲支原体感染是我国常见妇科疾病中的重要致病病源体。     

布-加综合征腔内成型术治疗体会

目的 :评价单球囊导管扩张 +内支架置放腔内成型治疗膜性及局限性布 加综合征 ,以探讨此术式的优缺点及适应证。方法 :采用下腔静脉单球囊导管扩张及内支架置放的手术方法对 8例膜性及局限性布 加综合征进行治疗。随访时间 10个月～ 2a。结果 :8例患者均一次性穿刺、扩张成功。阻塞段被扩张至 12mm～ 2 0mm ,行内支架置放腔内成型术后 ,阻塞下方下腔静脉压力从平均 (32± 4 .7)cmH2 O下降至 (19± 3.4 )cmH2 O。随访期内全部患者无复发。结论 :经腔内成型术对于短段闭塞型及重度下腔静脉狭窄型有良好疗效。