放射敏感性、X线辐射剂量对鼻咽癌细胞miR-7表达的影响

目的 探讨放射敏感性、X线辐射剂量对鼻咽癌细胞miR-7表达的影响.方法 以低放射敏感性鼻咽癌细胞株CNE-1、高放射敏感性鼻咽癌细胞株CNE-2为研究对象,采用析因设计的方法,分别给予CHE-1、CNE-2假照(0 Gy)、低剂量照射(2Gy)、高剂量照射(8Gy).Trizol法提取总RNA,设计特异性茎环引物逆转录miR-7,随机六引物逆转录18 s rRNA,所得cDNA进行染料法荧光定量PCR,以0 Gy照射的CNE-1细胞为参照样本,△△Ct法计算各组细胞miR-7的相对表达值,SPSS13.0行析因设计资料方差分析.结果 CNE-1和CNE-2的miR-7表达量有显著差异(F=135.483,P<0.001),CNE-1的miR-7表达量(x=4.49±3.62)高于CNE-2(x=1.29±1.10),不同剂量照射后,鼻咽癌细胞株miR-7表达量也有显著性差异(F=39.565,P<0.001),CNE-1接受2 Gy X线照射后miR-7表达最高,8 Gy照射组次之,0Gy照射组最低.CNE-2接受2GyX线照射后miR-7表达最低,8Gy照射组次之,0Gy照射组最高.结论 放射敏感性不同导致细胞受X线辐射后,miR-7表达调整方向不同,即低放射敏感细胞上调,而高放射敏感性细胞下调;X线辐射剂量将影响miR-7的表达调整幅度,即低剂量照射后miR-7调整幅度大,高剂量照射后调整幅度小.抑制miR-7表达可能会提高鼻咽癌细胞的放射敏感性.     

miRNA-143对人鼻咽癌细胞CNE-2Z增殖、迁移和侵袭的影响

目的 探讨miRNA-143对鼻咽癌细胞CNE-2Z增殖、迁移和侵袭的影响.方法 利用荧光定量PCR检测人永生化鼻咽上皮细胞(NP69)、高分化鼻咽癌细胞(CNE-1)、低分化鼻咽癌细胞(CNE-2Z)中miRNA-143的表达水平.利用感染慢病毒的方式建立稳定过表达miRNA-143的CNE-2Z细胞,并用荧光定量PCR法进行检测.通过CCK-8法检测过表达miRNA-143对CNE-2Z细胞增殖的影响,通过Transwell迁移和侵袭试验分析过表达miRNA-143对CNE-2Z细胞迁移和侵袭的影响.结果 低分化鼻咽癌细胞(CNE-2Z)中miRNA-143的表达水平显著低于CNE-1和NP69细胞(P<0.01).稳定过表达miRNA-143的CNE-2Z细胞(CNE-2Z/miR-143)中miRNA-143的表达水平显著高于CNE-2Z细胞(P<0.01)和慢病毒对照组细胞(CNE-2Z/miR-NC)(P<0.01).细胞增殖能力检测显示,与CNE-2Z组和CNE-2Z/miR-NC组相比,CNE-2Z/miR-143组在72 h和96 h时细胞活力显著降低(P<0.05,P<0.01).Transwell迁移和侵袭试验结果显示,CNE-2Z/miR-143组与CNE-2Z组和CNE-2Z/miR-NC组相比细胞迁移和侵袭能力显著下降(P<0.01).结论 miR-143能够抑制鼻咽癌细胞CNE-2Z的增殖、迁移和侵袭能力,提示其可能对鼻咽癌的诊断、治疗及预后评价有重要意义.     

微小RNA-150对鼻咽癌细胞放疗抵抗的影响研究

目的 探讨微小RNA（miR）-150对于鼻咽癌细胞放疗抵抗的影响,并分析其机制。方法 2014年1月-2015年6月,建立放疗抵抗的鼻咽癌细胞株CNE-2R。取CNE-2和CNE-2R,通过克隆形成实验计算不同放疗剂量下（0、3、6 Gy）的克隆形成率（PE）、细胞存活率,采用MTS法检测照射1、2、3、4、5 d时的细胞增殖活性,实时定量荧光聚合酶链式反应（Real-time PCR）法检测miR-150、糖原合成酶激酶3β（GSK3β）mRNA水平,Western blotting法检测GSK3β水平。将CNE-2随机分为miR-150模拟物组（转染miR-150模拟物）、微小RNAs（miRs）无关序列组（转染miRs无关序列）,通过荧光素酶报告载体实验检测荧光素酶活性。结果 0 Gy放疗剂量时,CNE-2与CNE-2R的PE、细胞存活率比较,差异无统计学意义（P＞0.05）;3 Gy、6 Gy放疗剂量时,CNE-2R的PE、细胞存活率高于CNE-2（P＜0.05）。照射1~5 d时,CNE-2R的细胞增殖活性高于CNE-2（P＜0.05）。CNE-2R中miR-150水平高于CNE-2,GSK3β mRNA水平低于CNE-2（P＜0.05）。CNE-2R中GSK3β水平低于CNE-2（P＜0.05）。转染GSK3β野生型质粒后,miR-150模拟物组荧光素酶活性低于miRs无关序列组（P＜0.05）;转染GSK3β突变型质粒后,miRs无关序列组与miR-150模拟物组荧光素酶活性比较,差异无统计学意义（P＞0.05）。结论 miR-150参与了鼻咽癌细胞的放疗抵抗,GSK3β是miR-150的直接靶基因,miR-150-GSK3β轴可能成为一种新的用于合理治疗鼻咽癌的策略。     

辐射对人鼻咽低分化鳞癌细胞株(CNE-2)凋亡率和相关基因转录水平的影响

目的探讨辐射诱发的人鼻咽低分化鳞癌细胞株(CNE-2)凋亡率和Bak、Bid、Bcl-w、Bcl-xl转录水平的影响。方法体外培养CNE-2,应用流式细胞术及RT-PCR方法检测不同辐射剂量(0、2、4、6、8Gy)下CNE-2凋亡率及凋亡相关基因Bak、Bid、Bcl-w、Bcl-xl的转录水平。结果 CNE-2照射后Bak表达上调,与辐射剂量及晚期凋亡率呈正相关;Bcl-w表达下调,与辐射剂量及晚期凋亡率呈负相关;Bcl-xl表达下调,与辐射剂量及晚期凋亡率无相关性;Bid在不同剂量点转录水平差异均无统计学意义。结论 Bak、Bcl-w、Bcl-xl可能参与了辐射诱发的CNE-2细胞凋亡的调控。     

不同浓度的盐酸千金藤碱对人鼻咽癌细胞的抑制作用实验研究

目的研究探讨不同浓度盐酸千金藤碱对人鼻咽癌细胞CNE-1/CNE-2和5-8F的抑制作用。方法选用鼻咽癌高分化鳞癌细胞株CNE-1和鼻咽癌低分化鳞癌细胞株CNE-2、5-8F作为实验组,人脐静脉内皮细胞株EVC-304为正常细胞对照组,利用MTT法检测不同浓度的盐酸千金藤碱对3种鼻咽癌细胞和对照组细胞的增殖影响;利用Hoechst 33342染色法检测不同浓度的盐酸千金藤碱对3种鼻咽癌细胞和对照组细胞的凋亡影响;利用流式细胞术检测盐酸千金藤碱对3种鼻咽癌细胞和对照组细胞的细胞周期影响。结果不同浓度的盐酸千金藤碱对3种鼻咽癌细胞有量效相关的抑制增殖作用,EC50分别为9.924μg/ml(CNE-1),7.068μg/ml(CNE-2),9.905μg/ml(5-8F),浓度为50μg/ml时抑制率达到95%以上,与对照组正常细胞相比差异均有统计学意义(P<0.01);不同浓度的盐酸千金藤碱3种鼻咽癌细胞有量效相关的诱导凋亡的作用,到12.5μg/ml时,处理组肿瘤细胞与阴性组相比染色质浓缩成斑块状,差异显著(P<0.05);同时,12.5μg/ml终浓度的盐酸千金藤碱处理不同的鼻咽癌细胞48 h后,与阴性对照组相比,可见实验组G0/G1期鼻咽癌细胞显著增多,S期及G2/M期明显减少,差异有统计学意义(P<0.05),表明盐酸千金藤碱能抑制其DNA合成,改变细胞周期。结论盐酸千金藤碱对3种鼻咽癌细胞均有抑制作用,可能机制包括诱导其凋亡并且改变其细胞周期。     

新型单羰基姜黄素衍生物B06对不同辐射抗拒鼻咽癌细胞的抑制作用

目的研究姜黄素及其单羰基结构衍生物B06对不同辐射抗拒鼻咽癌细胞株CNE-2与CNE-2R的作用。方法以MTr法检测姜黄素和B06对细胞增殖的影响。以流式细胞仪检测姜黄素和B06对细胞凋亡的影响,以Western-blot检测姜黄素和B06对ERS通路相关蛋白的影响。结果姜黄素对CNE-2和CNE-2R的IC50分别为8．35灿M和6．84μM,B06对CNE-2和CNE-2R的IC50分别为1．09μM和0．74μM。B06能激活CNE-2R细胞ERS通路中关键蛋白CHOP、XBP-1、ATF-4的表达,而姜黄素则不能激活其表达。结论新型单羰基姜黄素衍生物B06能更显著地抑制辐射抗拒鼻咽癌细胞的增殖,该作用机制很可能是通过ERS通路发挥,提示B06具有抑制辐射抗拒鼻咽癌细胞的潜在价值。     

电离辐射对转染pcDNA3.1-Egr-1-AIF△1-480质粒的MCF-7细胞增殖和侵袭能力的影响

目的：探讨辐射增强靶向截短型凋亡诱导因子（AIFΔ1-480）对MCF-7细胞增殖和侵袭能力的影响,阐明其提高肿瘤基因-放射治疗的可能性。方法：人乳腺癌MCF-7细胞经质粒转染早期生长反应1(Egr-1)介导的AIFΔ1-480重组表达载体pcDNA3.1-Egr-1-AIFΔ1-480（pE-AIFΔ1-480）,2 Gy X射线照射后24 h,分别采用MTT法和Transwell侵袭实验检测细胞增殖和侵袭能力。实验分为正常对照组、pcDNA3.1组（只转染pcDNA3.1质粒）、pE-AIFΔ1-480组（转染pE-AIFΔ1-480质粒）、2 Gy X线照射组和pE-AIFΔ1-480+ 2 Gy X线照射组。结果：质粒转染并经2 Gy X线照射后,正常对照组、pcDNA3.1组和pE-AIFΔ1-480质粒组细胞生长较快,且增殖规律基本一致。与正常对照组比较,2 Gy X线照射组和pE-AIFΔ1-480 + 2 Gy X线照射组细胞增殖能力显著降低（P<0.05）,且以pE-AIFΔ1-480+ 2 Gy X线照射组降低更明显,从12 h开始较2 Gy X线照射组明显降低（P<0.05）。正常对照组、pcDNA3.1组和pE-AIFΔ1-480组穿过基底膜细胞数基本一致,而2 Gy X线照射组和pE-AIFΔ1-480+ 2 Gy 照射组穿过基底膜细胞较正常对照组明显减少（P<0.05或P<0.01）,并且pE-AIFΔ1-480+2 Gy照射组穿过基底膜的细胞数较2 Gy照射组减少更明显（P<0. 01）。结论：AIFΔ1-480和电离辐射均能抑制人乳腺癌MCF-7细胞增殖和侵袭,二者具有协同作用,并且Egr-1启动子能增强辐射条件下的抑制效果。     

pshuttle-Egr-1-hSmac质粒联合X线照射对乳腺癌MDA-MB-435细胞增殖的抑制作用

目的:构建pshuttle-Egr-1-hSmac质粒并转染人乳腺癌MDA-MB-435细胞,观察其抑制肿瘤细胞的辐射增敏作用。方法：转染pshuttle-Egr-1-hSmac质粒的MDA-MB-435细胞经过2 Gy X线照射不同时间（4、8、12、24 和48 h）和0.5 ~ 5.0 Gy X线照射后24 h收集细胞,采用RT-PCR和Western blotting法检测Smac mRNA及其蛋白表达。将细胞分为对照组、pshuttle质粒组、pshuttle-Egr-1-hSmac 质粒组、2 Gy 组、pshuttle+2.0 Gy组 和pshuttle-Egr-1-hSmac+ 2.0 Gy组,MTT法检测各组细胞增殖;克隆形成实验检测细胞存活能力;Annexin Ⅴ-FITC双染法检测细胞凋亡;PI单染法检测细胞周期。结果:对照组和pshuttle质粒组MDA-MB-435细胞中Smac mRNA无表达,而pshuttle-Egr-1-hSmac质粒组MDA-MB-435细胞Smac mRNA表达水平随时间延长逐渐升高,于24和48 h时表达水平最高;经0.5 ~ 5.0 Gy X线照射后24 h MDA-MB-435细胞Smac mRNA表达水平随照射剂量增加而逐渐增加,在2.0和5.0 Gy X线照射后Smac mRNA表达水平最高。pshuttle-Egr-1-hSmac质粒组4、8、12和24 h后Smac蛋白表达水平逐渐升高,24 h后表达水平最高。经过0、0.5、1.0、2.0和5.0 Gy X线照射后24 h Smac蛋白表达水平逐渐升高,尤其以5.0 Gy X线照射时表达水平最高。MTT法检测时程效应,2.0 Gy、pshuttle+2.0 Gy和pshuttle-Egr-1-hSmac+2.0 Gy质粒组24、48和72 h细胞A490值明显低于对照组（P<0.01）;剂量效应,pshuttle-Egr-1-hSmac质粒组1.0～5.0 Gy X线照射后,MDA-MB-435细胞A490值明显低于0 Gy X线照射(P<0.05或P<0.01)。pshuttle-Egr-1-hSmac质粒组细胞存活分数明显低于对照组（P<0.01）。pshuttle-Egr-1-hSmac+2.0 Gy组细胞凋亡率明显高于2.0 Gy组（P<0.01）,G0/G1期和S期细胞百分率明显低于2.0 Gy照射组（P<0.01）,G2/M期细胞百分率明显高于2.0 Gy组（P<0.01）。结论：X线照射能增加pshuttle-Egr-1-hSmac质粒转染的MDA-MB-435细胞有效表达Smac mRNA及蛋白,能抑制细胞存活,且诱导G2/M期阻滞和凋亡增加;Smac基因联合放射治疗可明显增加乳腺癌细胞的放射敏感性。     

miR-205促进hAS Cs细胞系向软骨细胞方向分化的作用及机制研究

目的 探讨微小RNA(miR)-205通过调控核心结合因子α-1(Cbfα-1)表达促进人脂肪干细胞(hASCs)细胞系向软骨细胞方向分化的作用及机制.方法 慢病毒转染法将Lenti-miR-205、Lenti-control慢病毒液分别转染至hASCs细胞,命名为miR-205过表达组、miR-NC组,另取未处理细胞为对照组;RT-qPCR法检测转染后miR-205基因表达量,MTT比色法检测细胞增殖;用甲苯胺蓝染色、免疫细胞染色及免疫荧光染色观察转染后第3代hASCs细胞诱导分化情况,RT-qPCR、Western blot法检测诱导分化2周后各组Cbfα-1、Smad3、TGF-β1、ColⅡmRNA和蛋白表达.结果 转染后miR-205过表达组miR-205基因相对表达量高于miR-NC组和对照组(P<0.001).miR-205过表达组转染后hASCs细胞培养3、7 d MTT试验吸光度(A)值高于对照组和miR-NC组(P<0.05).诱导分化2周后,甲苯胺蓝染色显示,miR-205过表达组细胞染色呈强阳性深蓝染色,对照组和miR-NC组为微弱浅蓝色;免疫细胞化学染色显示,miR-205过表达组细胞及胞外基质强阳性棕黄染色,对照组和miR-NC组为弱阳性淡黄染色;免疫荧光染色显示,miR-205过表达组红色荧光强度较强,对照组和miR-NC组红色荧光强度较暗淡.miR-205过表达组诱导分化后Cbfα-1 mRNA和蛋白相对表达量低于对照组和miR-NC组,Smad3、TGF-β1、ColⅡmRNA和蛋白相对表达量高于对照组和miR-NC组(P<0.05).结论 miR-205过表达可促进hASCs细胞增殖、促进细胞向软骨细胞方向分化,可能通过抑制Cbfα-1、激活TGF-β1/Smad3信号通路发挥调控作用.     

pEgr1-hsTRAIL质粒对肺腺癌A549细胞放射敏感性及DR4和DR5表达水平的影响

目的:检测转染pEgr1-hsTRAIL质粒的人肺腺癌A549细胞放射敏感性变化及其对死亡受体（DR）4和DR 5 mRNA和蛋白表达的影响,探讨pEgr1-hsTRAIL质粒的辐射增敏效应和诱导细胞凋亡的可能机制。方法:实验分为正常对照（Normal control）组、pEgr1-hsTRAIL组、6 Gy X线照射组和pEgr1-hsTRAIL + 6 Gy X线照射组。A549细胞经过阳离子脂质体转染、X线深部治疗机照射后,利用平板克隆形成试验检测细胞放射敏感性,反转录RCR（RT-PCR）法检测DR4和DR5 mRNA表达变化,Western blotting法检测DR4和DR5蛋白表达的变化。结果：正常对照组和pEgr1-hsTRAIL组A549细胞的平均致死剂量（D0值）分别为3.26和1.91 Gy,说明pEgr1-hsTRAIL质粒能够增强A549细胞的放射敏感性。RT-PCR显示,转染pEgr1-hsTRAIL质粒对DR4和DR5 mRNA和蛋白表达水平无明显影响,而6 Gy X线照射后DR4和DR5 mRNA表达均显著高于正常对照组（P<0.05）,转染pEgr1-hsTRAIL质粒后再进行6 Gy X线照射,DR4和DR5 mRNA表达水平均显著高于正常对照组（P<0.05）,但只有DR5 mRNA表达水平显著高于6 Gy X线照射组（P<0.05）。Western blotting结果显示,与正常对照组比较,DR4和DR5蛋白在pEgr1-hsTRAIL组无明显变化,而在6 Gy X线照射和pEgr1-hsTRAIL + 6 Gy X线照射组表达增加,其中DR5蛋白在pEgr1-hsTRAIL + 6 Gy X线照射组增加更明显。结论:重组表达质粒pEgr1-shTRAIL能够增强A549细胞放射敏感性,且能增强DR5辐射诱导表达,而对DR4的辐射诱导表达无明显增强作用。     

Value of D-Dimers in patients with acute aortic dissection

Objective: To evaluatel the value of D-dimers in patients with acute aortic dissection (AAD). Methods: This study consisted of 16 patients with AAD and 27 non-AAD patients. Serum D-dimets were measured by Sta-Liatest D-DI immunoturbidimetric assay. Results: D-dimer level was higher (P ＜ 0.001) in patients with AAD(7.91 ± 5.52 μg/ml) than that in non- AAD group(1.57±1.24 μg/ml). D-dimer was positive (＞0.4 μg/ml) in all patients with AAD and in 10 control group patients (37%). Among patients with acute AAD, D-dimers tended to be higher in Stanford A than in Stanford B (8.67 ± 4.31 μg/ml vs. 3.24±1.27 μg/ml, P ＜0.01). D-dimer values tended to be higher in more extended disease(3.84 ± 1.65 μg/ml, 8.57 ± 3.58 μg/ml and 11.87 ± 5.69 μg/ml in thoracic aorta, thoracic and abdominal aorta, thoracic and abdominal aorta and iliacal arteries, respectively, P ＜ 0.05 for both 8.57 ± 3.58 and 11.87 ± 5.69 vs. 3.84 ± 1.65 ). Including the control group into the analysis, we found a sensitivity of 100%, a negative predictive value of 100%, and a specificity of 66% and a positive predictive value of 64% for D-dimer in diagnosis of AAD in our patients with suspected AAD. Conclusion: D-dimer was elevated in patients with AAD. A negative D-dimer test result could be useful in excluding AAD.     

Research of combined liver-kidney transplantation model in rats

Objective： To set up a simple and reliable rat model of combined liver-kidney transplantation. Methods： SD rats served as both donors and recipients. 4℃ sodium lactate Ringer＇s was infused from portal veins to donated livers,and from abdominal aorta to donated kidneys, respectively. Anastomosis of the portal vein and the inferior vena cava （IVC） inferior to the right kidney between the graft and the recipient was performed by a double cuff method, then the superior hepatic vena cava with suture. A patch of donated renal artery was anastomosed to the recipient abdominal aorta. The urethra and bile duct were reconstructed with a simple inside bracket. Results： Among 65 cases of combined liver-kidney transplantation, the success rate in the late 40 cases was 77.5%. The function of the grafted liver and kidney remained normal. Conclusion： This rat model of combined liver-kidney transplantation can be established in common laboratory conditions with high success rate and meet the needs of renal transplantation experiment.     

安心颗粒对急诊经皮冠状动脉介入术后生活质量影响的研究

目的：评价使用安心颗粒对急诊经皮冠状动脉介入术（PPCI）术后生活质量的影响.方法：将160例接受PPCI的急性ST段抬高型心肌梗死患者随机分为安心颗粒组（术前顿服安心颗粒8.8g,术后安心颗粒4.4 g/次,每日2次）和对照组（仅接受基础药物治疗）.所有患者均服用阿司匹林、氯吡格雷和阿托伐他汀.分别在入院时、出院前1d、出院后180 d时,应用心肌梗死多维度量表（MIDAS）、中文版SF-36评价量表对患者生活质量评分.并观察术后30 d以内的出血并发症、血小板减少症发生情况.结果：入院时和出院前1d,两组患者的心肌梗死MIDAS、SF-36量表评分比较无差异（P＞0.05）;出院后180 d时,与对照组比较,安心颗粒组MIDAS、SF-36评分明显减低（P＜0.05）;组内与入院时比较,两组出院前1d、出院后180 d时,MIDAS、SF-36评分均降低（P＜0.05）.两组患者在随访期间均无大量出血、少量出血、重度和极重度血小板减少症发生,安心颗粒组有4例、对照组有7例发生不明显出血（P＞0.05）.两组发生轻度血小板减少症的患者数比较无差异（P＞0.05）.结论：PPCI使用安心颗粒,能改善急性ST段抬高型心肌梗死患者的生活质量,且不增加出血风险.     

The comparative studies of the influences of Urapidil and Nicardipine on sino-atrial node function, atrio-ventricular node function and hemodynamics

Objective:To investigate the influences of urapidil and nicardipine on rabbit sinus function,atrio-ventricular node function and hemodynamics.Methods:Thirty-two Angora's rabbits were selected and randomly divided into four groups.U1 group:urapidil 0.25 mg/kg;U2 group:urapidil 0.5 mg/kg;N1 group:nicardipine 10 μg/kg;N2 group:nicardipine 20 μg/kg.All these medicine were administrated within 30 seconds.Measurements were taken before and after the administration of urapidil or nicardipine for the following data:mean blood pressure(MAP),heart rate(HR),sino-atrial conduction time(SACT),maximal sinoatrial recovery time(SNRTmax)corrected sinus node recovery time(CSNRT),index of sinus node recovery time(SNRTI),Wenckebach A-V conduction frequency (WB),and P-R interval.Results:Significant MAP and HR changes were identified in all of the four groups before and after administration of both urapidil and nicardipine.No significant changes could be found in the rest of the parameters.Intergroup analysis showed that SACT and CSNRT of N1 and N2 groups were shorter than those of the U2 group(P＜0.01);the MAP decreased(P＜0.01)and the HR increased drastically(P＜0.01).Conclusions:Neither urapidil(0.25 mg/kg,0.5 mg/kg)nor nicardipine(10μg/kg,20μg/kg)has any significant influence on rabbit sinus function or rabbit atrio-ventricular node function.Nicardipine could be a better choice than urapidil for parafunctional sinus node patients.     

Expression of OPGmRNA and ODFmRNA in the patients of hip fracture due to osteoporosis

Objective：To investigate the gene expression of osteoprotegerin（OPG） and osteoclast differentiation factor（ODF） in the bone tissue of patients with hip fracture due to osteoporosis. Methods：OPGmRNA and ODFmRNA in the bone tissue in 50 cases of osteoporosis sufferers（over 50 years old） with hip fracture（Observer Group） and 30 cases of hip facture sufferers with no osteoporosis（Control group） were analyzed with the Semi-Quantitative RT-PCR method. Results：The mRNA expressed of ODF, OPG were both high in the patients with hip fracture. In the control group, the expression of OPG mRNA was observed, while the expression of ODF mRNA was very slight. Conclusion：Aged patients contained all signals including OPG, ODF that are essential for inducing osteoclastogenesis and promoting bone resorption.     

The clinicopathological and immuohistochemical analysis of solid-pseudopapillary tumor of the pancreas： report of 9 cases

Objective：To investigate the clinical features, pathological characteristics and immunophenotype of solid-pseudopapillary tumor of the pancreas（SPTP）. Methods：Nine surgically treated cases of SPTP were retrospectively reviewed. Hematoxylin and Eosin（HE） staining and immunohistochemical staining were used to analyze all cases, and the general clinical data was collected. Results：Six patients were asymptomatic except for a palpable mass. Two patients complained of vague-epigastric pain. One patient appeared jaundice. The tumor was encapsulated and solid tissues alternately with cystic tissues. Histologically, the histological structure of solid portion was pseudopapillary with a fibrovascular core. Tumor cells were uniform and medium-sized which were arranged in sheets ets or nests or pseudopapillary patterns. Immunohistochemical studies demonstrated that SPTP proved positive in vimentin（9/9 cases）, AAT（9/9 cases）, NSE（9/9 cases）, ACT（7/9 cases）, CK20（2/9 cases）, CgA（1/9 cases）, S-100（3/gcases）, PR（4/gcases）, Syn（3/9 cases） and CD56（5/9cases）, negative in CEA and ER. Conclusion：SPTP is a tumor predominantly occurring in young women frequently without special symptoms. This tumor has various characteristical histological patterns with different immunophenotype.     

Electro-Acupuncture Combined with the Trigger Point Needle-Embedding for Treatment of Primary Trigeminal Neuralgia in 31 Cases

In recent years, the author of this essay has applied electro-acupuncture combined with the trigger point needle-embedding for treatment of primary trigeminal neuralgia in 31 cases, yielding satis- factory results as reported in the following.     

Investigation of Matrix Metalloproteinase -1, 2 and tissue inhibitor of matrix metalloproteinases-1 in Endometriosis

Objective： To explore the role of matrix metalloproteinase-1,2 （MMP-1, MMP-2） and tissue inhibitor of matrix metalloproteinases-1 （TIMP-1） in endometriosis. Methods： The eutopic and ectopic endometria from 40 subjects suffering from endometriosis and regular.endometria from 40 subjects （excluding endometriosis） were collected and examined by in situ hybridization technology and western blot assay. Results： Both expressions of MMP-1 and -2 were stronger in ectopic endometrium and eutopic endometrium than in normal endometrium. On the contrary, the expression of TIMP-1 in ectopic endometrium and eutopic endometrium was lower. The differences were significant （P 〈 0.01 ）. Moreover, there was no relationship among the expressions of MMP-1, 2 and TIMP-1 in ectopic endometrium. Conclusion： The expressions of MMP-1, 2 and TIMP-1 lose balance and lack of periodic changes in ectopic endometrium , which explains the biological invasive behavior of endometriosis. It was suggested-that regulating the balance between the MMPs and TIMP-1 should be an ideal therapeutic target to endometriosis.     

Shi Da-zhuo (史大卓) —An outstanding cardiologist of integrative medicine

Prof. SHI Da-zhuo, Ph.D., male, was born on March 20, 1960. Prof. SHI entered the Ph.D. program in 1990 at the China Academy of Chinese Medical Sciences under the supervision of Prof. CHEN Ke-ji, majoring in the treatment of cardiovascular diseases. After receiving his Ph.D. degree in 1993, Prof. SHI started working at the Cardiovascular Center in Xiyuan Hospital affiliated to China Academy of Chinese Medical sciences.     

Persist in and Carry Forward the Integrative Medical Research——Speech at the 6th National General Congress of Chinese Association of Integrative Medicine by Academician CHEN Zhu,Minister of Ministry of Health

The 6th National General Congress of Chinese Association of Integrative Medicine （CALM） was convened at 19-20, April 2008 in Beijing. Academician CHEN Zhu, the minister of Ministry of Health indicated at the congress that the integration of Chinese and Western medicine is very well in keeping with the situation of our country and the general rule of development in medical science; and as a good integration of Chinese medicine and Western medicine, it is mutually beneficial and advantageous to both of them. Seeing the creativity shown in integrative medical investigation in theoretic and methodological sides, we should and must persist in and develop it.