HIF-1α反义寡核苷酸体外对人脑胶质瘤细胞U251的作用

目的:研究缺氧诱导因子-1α(H IF-1α)反义寡核苷酸(ASODN)转染对人胶质瘤细胞增殖及凋亡的影响,探讨以H IF-1α为靶点进行反义寡核苷酸转染治疗胶质瘤的有效性。方法:设计合成针对H IF-1α的寡核苷酸片段.实验分6组:空白对照组、脂质体组、正义组和反义组(1.0μmol/l、2.5μmol/l和5.0μmol/l)。利用脂质体包裹瞬时转染人胶质瘤细胞系U251,MTT法检测细胞增殖;采用AO/EB染色及末端标记法(TUNEL)检测细胞凋亡的变化。结果:转染后各组细胞增殖抑制率分别为(1.30±0.05)%、(1.98±0.35)%、(2.47±0.48)%、(22.30±2.08)%、(33.60±4.19)%和(56.20±4.22)%。转染H IF-1α反义寡核苷酸组较各对照组相比细胞增生下降,凋亡增加(P<0.01)。结论:H IF-1α反义寡核苷酸转染人胶质瘤U251细胞系可以抑制细胞增生并诱导胶质瘤细胞凋亡,H IF-1α有望成为一个极具潜力的肿瘤治疗的靶点。     

反义IGF-Ⅰ寡核苷酸转染对人肝癌细胞增生及凋亡的影响

为研究胰岛素样生长因子 I(IGF I)反义寡核苷酸转染对人肝癌细胞增生、分化及凋亡的影响 ,探讨寡核苷酸转染治疗肝癌的可行性 ,利用反义核酸技术 ,合成针对IGF I的寡核苷酸片段 ,利用脂质体包裹反义IGF I寡核苷酸片段瞬时转染人肝癌细胞系BEL 74 0 2细胞 ,MTT法检测细胞增生 ;放免法检测培养细胞上清中AFP、CEA的分泌量 ;采用末端标记 (Tunel)法检测细胞凋亡的变化。结果发现转染反义IGF I寡核苷酸可使人肝癌细胞系BEL 74 0 2细胞增生下降 ,AFP、CEA表达降低 ,凋亡细胞数量增多。反义IGF I寡核苷酸转染人肝癌细胞系BEL 74 0 2细胞可以降低细胞增生、减少细胞去分化并诱导肝癌细胞凋亡     

PDGFR-β反义寡核苷酸对大鼠血管平滑肌细胞增殖的影响

目的　研究血小板衍化生长因子 β受体 (PDGFR- β)反义寡核苷酸 (AODN)对血管平滑肌细胞 (VSMC)增殖的影响 .方法　建立大鼠血管平滑肌细胞体外增殖模型 .将细胞分为反义寡核苷酸组、正义寡核苷酸组、无义寡核苷酸组和空白对照组 ,其中反义组按浓度又分为 1,2 .5 ,5 ,10和 15μmol· L- 1 5小组 .在加药后 2 4,48和 72 h以流式细胞仪测定细胞周期 ,免疫细胞化学染色分析细胞核增殖抗原的表达 ,MTT(四唑盐 )比色法测定细胞增殖活力 .结果　 10μmol·L- 1 PDGFR- β AODN干预 VSMC48h后 ,处于 DNA合成前期 (G0 / G1 )细胞数分数 (0 .70 )高于空白对照组 (0 .0 7,P <0 .0 5 ) ;PCNA免疫细胞化学染色发现以 5～ 15μmol· L- 1PDGFR- β AODN干预 48h后 VSMC各组胞核染色强度为2 0 .4%～ 6 .4%明显弱于空白组 (73.8% ) ,正义组 (72 .9% )和无义组 (75 .6 % ) (P<0 .0 5 ) ;10μmol· L- 1 PDGFR-β AODN作用 48h后 VSMC的增殖抑制率为 6 6 .7% ,高于正义组 (8.1% ) ,错义组 (11.8% )和 5 μmol· L- 1 AODN组 (4 5 .4% ) (P<0 .0 5 ) ;同时 10μmol· L- 1 AODN组 48h增殖抑制率与 2 4h(9.1% )相比明显增加 (P<0 .0 5 ) .结论　 PDGFR- β AODN对VSMC增殖有明显抑制作用 ,并且呈时间和浓度依赖性 .     

bcl-2硫代反义寡核苷酸增强膀胱癌细胞对顺铂的敏感性

目的　研究凋亡抑制基因bcl 2硫代反义寡核苷酸 (S ODN)转染T2 4细胞后对顺铂药物敏感性影响。方法　将培养细胞分为 6组 :反义S ODN组 ,正义S ODN组 ,反义S ODN +顺铂组 ,正义S ODN +顺铂组 ,顺铂组和对照组。应用脂质体法介导bcl 2正义、反义S ODN转染T2 4细胞。通过免疫细胞化学方法观察细胞内BCL 2的蛋白表达 ,RT PCR方法检测细胞内bcl 2mR NA的相对表达量 ,MTT法测经顺铂 (cis platinum)处理的各组细胞的生成率 ,流式细胞仪 (FCM)检测细胞凋亡率。结果　bcl 2反义S ODN处理过的T2 4细胞中BCL 2蛋白和bcl 2mRNA表达明显下降。顺铂对反义S ODN组细胞的半抑制浓度 (IC50 )为 (2 .2 5± 0 .0 9) μg/ml显著低于正义S ODN组 (5 .83± 0 .15 ) μg/ml和对照组 (6 .11± 0 .2 1) μg/ml(P <0 .0 1)。顺铂处理反义S ODN组细胞的凋亡率显著高于其它组。结论　bcl 2反义S ODN能显著抑制T2 4细胞中BCL 2蛋白的表达并增强T2 4细胞对顺铂的药物敏感性     

bcl-2反义寡核苷酸对小细胞肺癌细胞NCI-H69放射敏感性的影响

目的研究bcl-2反义寡核苷酸对人小细胞肺癌细胞NCI-H69放射敏感性的影响。方法将NCI-H69细胞培养传代,然后将细胞分为反义寡核苷酸组、正义寡核苷酸组、无义寡核苷酸组和空白对照组,通过脂质体将不同寡核苷酸导入细胞中,用Western-Blot法检测Bcl-2蛋白的表达。采用直线加速器分别以不同剂量（0、2、4、6、8、10 Gy）X线照射4组细胞。收集照射后的细胞,流式细胞仪检测细胞凋亡率,MTT法测定细胞存活分数。结果Western-Blot杂交显示反义寡核苷酸组无Bcl-2蛋白表达,相对正义寡核苷酸组、无义寡核苷酸组及空白对照组Bcl-2蛋白表达明显受到抑制（F=7.24-15.31,q=5.03-7.80,P〈0.01）。细胞经X线照射后,反义寡核苷酸组细胞凋亡率明显高于空白对照组,差异具有显著性（F=7.24-15.31,q=5.03-7.80,P〈0.01）;正义寡核苷酸组和无义寡核苷酸组与空白对照组相比无统计学差异。4组细胞接受辐射后,反义寡核苷酸组在未照射和照射不同剂量后的存活分数均低于空白对照组,差异有统计学意义（F=11.04-45.56,q=5.10-14.75,P〈0.01）,而正义寡核苷酸和无义寡核苷酸组与空白对照组比较则无统计学差异。结论bcl-2反义寡核苷酸能有效封闭bcl-2基因的表达,增强小细胞肺癌细胞NCI-H69对X线的敏感性。     

bcl-2反义寡核苷酸对小细胞肺癌细胞NCI-H69放射敏感性的影响

目的 研究bcl-2反义寡核苷酸对人小细胞肺癌细胞NCI-H69放射敏感性的影响.方法 将NCI-H69细胞培养传代,然后将细胞分为反义寡核苷酸组、正义寡核苷酸组、无义寡核苷酸组和空白对照组,通过脂质体将不同寡核苷酸导入细胞中,用Western-Blot法检测Bcl-2蛋白的表达. 采用直线加速器分别以不同剂量(0、2、4、6、8、10 Gy)X线照射4组细胞.收集照射后的细胞,流式细胞仪检测细胞凋亡率,MTT法测定细胞存活分数.结果 Western-Blot杂交显示反义寡核苷酸组无Bcl-2蛋白表达,相对正义寡核苷酸组、无义寡核苷酸组及空白对照组Bcl-2蛋白表达明显受到抑制(F=7.24～15.31,q=5.03～7.80,P＜0.01).细胞经X线照射后,反义寡核苷酸组细胞凋亡率明显高于空白对照组,差异具有显著性(F=7.24～15.31,q=5.03～7.80,P＜0.01);正义寡核苷酸组和无义寡核苷酸组与空白对照组相比无统计学差异.4组细胞接受辐射后,反义寡核苷酸组在未照射和照射不同剂量后的存活分数均低于空白对照组,差异有统计学意义(F=11.04～45.56,q=5.10～14.75,P＜0.01),而正义寡核苷酸和无义寡核苷酸组与空白对照组比较则无统计学差异.结论 bcl-2反义寡核苷酸能有效封闭bcl-2基因的表达,增强小细胞肺癌细胞NCI-H69对X线的敏感性.     

HPV16 E6基因反义寡核苷酸诱导SiHa细胞凋亡的研究

目的　探讨 HPV16 E6反义寡核苷酸 (AE6 )对宫颈癌细胞 Si Ha细胞凋亡的诱导作用 .方法　应用细胞生长抑制实验 (MTT)、透射电子显微镜 (TEM)、DNA电泳及流式细胞术 (FCM)研究 AE6对 Si Ha细胞生长抑制、超微结构改变、核酸及细胞增殖周期的影响 .结果　 AE6 1～ 40μmol· L- 1对 Si Ha细胞抑制率为 9.9%～ 6 0 .3% ,相互间有显著性差异(P<0 .0 5 ) .AE6 2 0 μmol· L- 1作用 72 h,Si Ha出现凋亡形态学改变 ,DNA电泳呈梯状带型 .AE6 5 ,10 ,2 0和 40μmol· L- 1 作用 72 h后 ,Si Ha细胞凋亡率分别为 1.9% ,7.9% ,8.1%和 19.7% .结论　 HPV16 E6基因与 HPV16阳性宫颈癌细胞的增殖和细胞凋亡密切相关 ,AE6可通过诱导 Si Ha细胞凋亡而抑制其生长 ,它的分子克隆有助于阐明宫颈癌发生的分子机制     

硫代反义脱氧寡核苷酸对脑胶质瘤SWO-38细胞的作用

目的　研究α1,4半乳糖糖基转移酶 (α1,4GalT)基因硫代反义核酸对脑胶质瘤细胞系SWO -3 8细胞的增值与凋亡的影响及其与Bcl -2和Bax表达的关系。方法　采用脂质体介导的基因转染方法将人工合成α1,4GalT基因反义核酸转入SWO -3 8细胞中。应用RT -PCR检测对α1,4GalTmRNA表达的影响 ,应用克隆形成实验检测对细胞增殖的作用 ,应用流式细胞术 (FCM)和琼脂糖凝胶电泳检测细胞凋亡的发生 ,应用FCM检测Bax和Bcl -2表达的变化。结果　反义核酸转染后 ,经RT -PCR检测证实α1,4GalTmRNA基因的表达下降 ;克隆形成试验显示细胞生长明显受到抑制 (P <0 .0 1) ;FCM检测表明 ,导入α1,4GalT基因反义核酸的SWO -3 8细胞的凋亡明显增加 (P <0 .0 1) ,Bcl -2蛋白表达显著下降 (P <0 .0 1) ,而Bax蛋白表达显著提高 (P <0 .0 1)。结论　α1,4GalT基因硫代反义核酸可诱导脑胶质瘤细胞系SWO -3 8细胞凋亡 ,其机制与Bcl-2和Bax基因调控有关     

皮肤局部外涂IL-20,K16反义寡核苷酸乳剂对银屑病样皮损的影响

目的 :研究白细胞介素 2 0 (IL 2 0 ) ,K16反义寡核苷酸乳剂皮肤局部外涂对豚鼠银屑病样皮损的影响 .方法 :用5 0g·L-1心得安乳剂外涂豚鼠耳背部皮肤成功诱导银屑病样动物模型 ,然后分别以IL 2 0和K16反义寡核苷酸、正义寡核苷酸乳剂及单纯乳剂基质作用于皮损 ,进而通过HE染色观察皮损的变化和原位杂交检测其表达的水平 .结果 :IL 2 0反义寡核苷酸治疗组较正义寡核苷酸组及单纯乳剂基质对照组皮损评分显著降低 (4 0± 1 0vs 7 0± 0 9,7 6± 1 2 ,P <0 0 1) ;K16反义寡核苷酸治疗组较正义寡核苷酸组及单纯乳剂基质对照组皮损评分也有降低 (5 2± 1 0vs 7 2± 1 0 ,7 6± 1 2 ,P <0 0 5 ) .治疗组IL 2 0和K16的表达与对照组相比均有不同程度的降低 ,具有阳性杂交信号的细胞数量减少 ,信号强度减弱 .结论 :IL 2 0和K16反义寡核苷酸能够抑制豚鼠银屑病样皮损的发展 ,甚至使其逆转 ;IL 2 0和K16反义寡核苷酸乳剂外涂可以抑制靶mRNA的水平及表达 .     

WT1反义核酸诱导卵巢癌细胞凋亡的实验研究

[目的]研究WT1反义寡核苷酸转染对卵巢癌SKOV3细胞增殖和凋亡的影响。[方法]实验分4组:正常对照组(加入转染液)、反义组(脂质体+反义寡合苷酸转染)、正义组(脂质体+正义寡合苷酸转染)和脂质体组(只加入脂质体)。分组转染卵巢癌SKOV3细胞株后,流式细胞仪检测细胞凋亡和细胞周期,MTT法检测细胞的增殖活性,RT-PCR检测WT1 mRNA表达水平,Western blot检测其蛋白表达水平。[结果]脂质体介导的WT1反义寡核苷酸转染明显抑制卵巢癌SKOV3细胞增殖,抑制率为49.48%,G0-G1期细胞分布率增加达(79.10±2.79)%,凋亡细胞群明显增多,凋亡率为(13.18±2.00)%,同时转染后细胞WT1 mRNA及蛋白表达水平下降,与对照组及其他各组相比较差异均有显著性意义(P<0.05)。[结论]WT1反义核酸能抑制卵巢癌细胞增殖,诱导细胞凋亡。WT1反义核酸用于卵巢癌的基因治疗具有一定的潜在意义。     

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.