汉黄芩素体外对胃癌SGC-7901细胞增殖、迁移和侵袭的实验性研究

目的探讨汉黄芩素对胃癌细胞增殖、迁移和侵袭的影响以及可能分子机制。方法不同浓度(20、50、100μmol/L)汉黄芩素分别作用于人胃癌SGC7901细胞24、48、72 h,空白对照不进行任何处理。采用MTT法检测细胞增殖能力;采用划痕实验观察细胞迁移能力;采用Transwell法观察细胞侵袭能力;采用流式细胞仪检测细胞周期与凋亡情况; RT-qPCR和Western blot分别对细胞基质金属蛋白酶2、9(MMP2、MMP9)、细胞间黏附分子-1(ICAM-1)以及金属蛋白酶抑制剂2(TIMP2)的mRNA和蛋白表达水平进行检测。结果 MTT实验结果显示,不同浓度的汉黄芩素抑制人胃癌SGC7901细胞呈浓度和时间依赖性;作用48 h后,汉黄芩素s期比例上升,诱导细胞凋亡(P0. 05); Transwell实验结果显示,汉黄芩素呈浓度依赖性抑制人胃癌SGC7901细胞侵袭; RTq PCR和Western blot检测结果显示,汉黄芩素能够抑制SGC7901细胞中ICAM-1、MMP9、MMP2的mRNA和蛋白表达水平,但上调TIMP2 mRNA和蛋白表达(P0. 05)。结论汉黄芩素能够抑制人胃癌SGC7901细胞增殖、迁移和侵袭,阻滞细胞在S周期,诱导其凋亡。     

MiR-203通过SNAI2的靶向作用对胃癌细胞SGC7901侵袭和凋亡的影响

目的:研究miR-203通过SNAI2对胃癌细胞SGC7901侵袭和凋亡的影响。方法:1脂质体转染将miR-203mimics转入胃癌细胞SGC7901,Real-time PCR检测转染效果,Transwell实验和流式细胞术检测细胞侵袭和凋亡情况。2Real-time PCR和Western blot检测转染miR-203后在胃癌细胞中SNAI2的表达水平。3siRNA干扰胃癌细胞SGC7901中SNAI2的水平,Western blot验证敲减效果,并检测敲减SNAI2后细胞侵袭和凋亡情况。4转染miR-203mimics后,脂质体转染SNAI2表达质粒,检测细胞侵袭和凋亡情况。结果:1脂质体介导的miR-203mimics转染SGC7901后,细胞侵袭能力减弱,凋亡增加。2在胃癌细胞中,miR-203与SNAI2表达负相关。3敲减SNAI2后,细胞侵袭能力减弱,凋亡增加。4在过表达miR-203的胃癌细胞中转染SNAI2后能使胃癌细胞侵袭能力恢复,凋亡减少。结论:miR-203能够通过靶向调控SNAI2而降低胃癌细胞SGC7901的侵袭能力并促进其凋亡。     

Survivin反义寡核苷酸诱导胃癌SGC7901细胞凋亡及对白藜芦醇的增敏作用

目的:观察survivin反义寡核苷酸(ASODN)对胃癌SGC7901细胞的增殖、凋亡及对白藜芦醇敏感性的影响. 方法:人工合成survivin硫代ASODN,通过脂质体转染胃癌细胞株(SGC7901)后,用MTT法检测细胞毒作用;用荧光染色、流式细胞术检测细胞凋亡;RT-PCR、免疫组化技术检测survivin mRNA及蛋白的表达. 结果: ①survivin ASODN抑制胃癌SGC7901细胞的增殖呈时间和剂量依赖性; ②survivin ASODN处理组SGC7901细胞24 h后凋亡率为(33.6±1.2)%,正义寡核苷酸(SODN)组为(10.7±0.8)%,两组相比,差异有显著性(P＜0.05);③survivin ASODN处理组SGC7901细胞survivin蛋白及mRNA的表达水平显著下降. ④survivin ASODN和白藜芦醇联合处理组SGC7901细胞24,48,72 h生长抑制率,显著高于单用survivin ASODN组(P＜0.05)和单用白藜芦醇组(P＜0.05). 结论:survivin ASODN能够抑制胃癌SGC7901细胞的增殖、诱导凋亡,并能增加胃癌细胞株SGC7901对白藜芦醇的敏感性,推测可能通过下调survivin mRNA及蛋白表达而起作用.     

大蒜素对人胃癌SGC7901细胞生长的影响

目的探讨大蒜素（diallyl trisulfide,allicin）对人胃癌细胞株SGC7901体外生长的影响。方法大蒜素处理胃癌细胞株SGC7901,MTT法检测SGC7901的生长,流式细胞仪检测细胞凋亡率,免疫细胞化学法检测Ki67的表达。结果大蒜素作用于SGC7901细胞后,对其增殖表现出了明显的抑制作用,且呈浓度依赖性;大蒜素作用于SGC7901细胞12、24和48 h后,细胞凋亡率分别为2.41%、7.30%和15.44%,明显高于对照组（P〈0.05）;大蒜素作用48h后,Ki67的阳性表达率下降（P〈0.05）。结论大蒜素可以抑制胃癌SGC7901细胞的增殖和诱导细胞凋亡。     

siRNA干扰Msi1对人胃癌SGC-7901细胞的影响

目的探讨siRNA沉默Msi1基因表达对人胃癌SGC-7901细胞增殖、凋亡、侵袭与转移的影响。方法针对Msi1 mRNA序列设计合成siRNA,转染SGC-7901细胞。RT-PCR法检测Msi1基因表达;Westernblot检测survivin、caspase3及MMP-9表达;MTT法检测SGC-7901细胞增殖;流式细胞术检测细胞凋亡情况。结果Msi1 siRNA能有效抑制胃癌SGC-7901细胞中Msi1的表达,与空白对照组比较,Msi1 siRNA组SGC-7901细胞生长、增殖速度减缓(P<0.05);survivin、MMP9蛋白表达水平显著下调(P<0.05),而caspase3蛋白表达水平上调(P<0.05);Msi1 siRNA组凋亡率增高。结论沉默Msi1对人胃癌SGC-7901细胞增殖、凋亡、侵袭与转移有负性调节作用。     

OPN通过SDF－1/CXCR4轴调控胃癌细胞的生物学行为

目的:观察骨桥蛋白(osteopontin,OPN)小干扰RNA稳定转染人胃癌细胞SGC－7901后,细胞增殖?凋亡及迁移能力的变化并探讨其可能的分子机制?方法:用脂质体法分别将OPNsiRNA－pcDNATM 6.2及空载体质粒pcDNATM6.2转染人胃癌细胞SGC－7901,稻瘟素筛选,克隆环挑取细胞克隆,用Western blot及RT－PCR技术筛选阳性克隆,并检测稳转细胞中OPN?趋化因子受体4(CXCR4)?基质金属蛋白酶2(MMP2)的表达,应用MTT法?流式细胞仪?细胞迁移试验分别检测转染细胞的增殖?凋亡及迁移能力?结果:OPN siRNA稳定转染细胞SGC－7901后,稳转细胞中CXCR4和MMP2表达量下降;细胞的增殖能力(与转染空载体质粒比较)降低?细胞凋亡率显著高于对照组,转染细胞的迁移能力明显降低?结论:OPN siRNA使胃癌细胞增殖和迁移能力降低?细胞凋亡增加;提示OPN可能通过SDF－1/CXCR4轴及MMP2参与的信号通路调节肿瘤细胞生长及转移?     

钙离子结合蛋白S100A16对胃癌细胞生物学行为的影响

目的：探讨钙结合蛋白S100A16在胃癌组织和细胞中的表达,及其对胃癌细胞SGC?7901增殖、迁移、侵袭能力的影响。方法：应用免疫组织化学染色法检测S100A16在胃癌和相应癌旁组织中的差异表达。应用Western blot检测正常胃上皮细胞GES?1以及胃癌细胞MGC?803和SGC?7901中S100A16的表达水平。将S100A16高表达质粒和干扰质粒分别转染至人胃癌细胞株SGC?7901中,用Western blot检测各组细胞中S100A16的表达。采用磺酰罗丹明B（sulforhodamine B,SRB）比色法和克隆形成实验检测细胞的增殖能力。采用划痕实验检测细胞迁移能力,采用Transwell实验检测细胞侵袭能力。结果：在胃癌组织及胃癌细胞中,S100A16的表达量明显高于相应癌旁组织及正常胃上皮细胞。SRB染色和克隆形成实验显示,过表达S100A16会增加SGC?7901细胞的增殖能力,敲低S100A16后增殖能力降低。划痕实验Transwell实验显示,过表达S100A16会增加SGC?7901细胞的迁移和侵袭能力,敲低S100A16则会降低。免疫共沉淀实验显示在胃癌细胞SGC?7901中,S100A16与YBX?1存在结合。结论：胃癌组织及细胞中S100A16的表达明显上调,S100A16在胃癌中的异常表达可能是由于与YBX?1的相互结合,进而促进胃癌细胞增殖、迁移、侵袭从而影响胃癌的发生发展。     

Survivin反义寡核苷酸诱导胃癌SGC7901细胞株凋亡的实验研究

目的 观察Survivin反义寡核苷酸（ASODN）对胃癌细胞株（SGC7901）增殖、凋亡的作用。方法 人工合成Survivin硫代ASODN，通过脂质体转染胃癌细胞株（SGC7901）后，用MTT法检测细胞毒作用；用荧光染色、流式细胞术检测细胞凋亡；用RT-PCR、免疫组化技术检测SurvivinmRNA及蛋白的表达。结果 （1）Survivin ASODN抑制胃癌SGC7901细胞增殖呈时间和剂量依赖性；（2）Survivin ASODN处理组SGC7901细胞24h后凋亡率为33．6％，正义寡核苷酸（SODN）组为10．7％，2组相比，有显著性差异（P〈0．05）；（3）SurvivinASODN处理组SGC7901细胞Survivin蛋白及mRNA的表达水平显著下降。结论 Survivin ASODN能够抑制增殖、诱导凋亡，推测可能通过下调Survivin mRNA及蛋白表达而起作用。     

YY1在胃癌组织中的表达及其对SGC－7901细胞株增殖和凋亡的影响

目的:检测YY1在胃癌组织中的表达情况,探讨YY1对人胃癌细胞株SGC－7901增殖?凋亡的影响以及可能的机制?方法:利用定量PCR和免疫组织化学分别检测标本中YY1的mRNA和蛋白表达水平?利用慢病毒表达载体系统在胃癌细胞株SGC－7901中上调YY1,运用CCK－8?流式细胞术?平板克隆实验检测YY1对细胞的增殖?凋亡以及克隆形成能力的影响?结果:胃癌组织中YY1的mRNA和蛋白表达水平明显低于癌旁组织?与空载对照组(SGC－7901－Empty Vector,SGC－7901－EV)和与正常对照组(SGC－7901)相比,过表达YY1组细胞(SGC－7901－YY1)的增殖和平板克隆形成能力明显减弱,细胞凋亡增加?结论:YY1与胃癌的发生发展有一定的关系,可能起到抑癌基因的作用,YY1基因可能成为胃癌靶向治疗的新的潜在靶点?     

正义、反义Id1真核表达载体的构建及其对胃癌细胞的转染

目的构建正义、反义Id1真核表达载体,并转染胃癌SGC7901细胞株,筛选稳定表达的细胞株。方法设计Id1基因两端的引物,RT-PCR扩增Id1全长序列。将目的基因插入pcDNA3.1＋/Hygro构建正义Id1真核表达载体,插入pcDNA3.1-/Hygro构建反义Id1真核表达载体。脂质体转染法转染胃癌SGC7901细胞系,潮霉素筛选稳定表达的细胞株。结果RT-PCR法获得长约530 bp的Id1全长序列,经酶切及测序鉴定正确后转染胃癌SGC7901细胞株。经过潮霉素筛选8周,获得抗性的细胞株。经Western-blot鉴定,转染正义Id1真核表达载体的细胞株Id1蛋白表达水平高于对照组,而转染反义Id1真核表达载体的细胞株Id1蛋白表达水平低于对照组。结论成功构建正义、反义Id1真核表达载体并转染胃癌SGC7901细胞株,为进一步研究打下基础。     

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.     

APPLICATION OF LORNOXICAM TO PATIENT-CONTROLLED ANALGESIA IN PATIENTS UNDERGOING ABDOMINAL SURGERIES

FOR anesthesiologis s ,treatingpostoperativepainhas alwaysbeen a problem.Althoughopioidshave been provedtobe effective,theirsideeffectscouldnotbeignored.With thedevelopmentofscienceand pharmacology,many drugs with aspectsof satisfactoryanalgesicefficacyand couldbe welltoleratedby patientshave been developed.And lornoxicamisone of them, which isa non-steroidalanti-inflammatorydrug (NSAID ), with analgesic, anti-infl-ammatory,andantipyreticproperties.Itseliminationhalf-time(3 to 5 hours) isle…     

BLOOD PRESSURE CHANGE WITH AGE IN SALT-SENSITIVE TEENAGERS

Objective To observe blood pressure change with age in salt-sensitive teenagers whose salt sensitivity were determined by repeated testing.Methods Salt sensitivity was determined through intravenous infusion of normal saline combined with volume-depletion by oral diuretic furosemide in 55 teenagers. After five years, salt sensitivity was re-examined and subject blood pressure was followed up. Blood pressure changes in salt-sensitive teenagers were compared to that of non-salt sensitive teenagers over five years.Results After 5 years, the repetition rate of salt sensitivity determined by intravenous saline loading is 92.7%. In teenagers with salt sensitivity on the baseline, both the systolic blood pressure increments and increment rates were much higher than non-salt sensitive teenagers (12.7±12.1 mmHg vs. 2.8±5.2 mmHg, P＜ 0.01; 12.2%± 12.0% vs. 2.5% ±4.4%, P＜ 0.001,respectively). There was a similar trend for diastolic blood pressure (8.4 ± 6.4 mmHg vs. 3.7 ± 6.4 mmHg, P = 0.052; 13.2% ±10.6 % vs. 6.8%± 10.1%, P = 0.053, respectively).Conclusions Salt sensitivity determined by intravenous saline loading showed good reproducibility. Blood pressure increments with age were much higher in salt-sensitive teenagers than non-salt sensitive teenagers, especially in terms of systolic blood pressure.     

Acupuncture Combined with Spinal Tui Na for Treatment of Primary Dysmenorrhea in 30 Cases

Objective: To observe the therapeutic effects in acupunture treatment of primary dysmenorrhea combined with spinal Tui Na, and study its mechanism. Methods: Thirty cases of the treatment group were treated by acupuncture combined with spinal Tui Na, and thirty cases in the control group were treated by routine acupuncture. Results: The total effective rate was 93.3% in the treatment group, and 73.3% in the control group, with a significant difference between the two groups (P<0.05). Conclusions: Acupuncture combined with spinal Tui Na has good prospects for treatment of primary dysmenorrhea.     

Luo Lingjie's Experience in Treating Chronic Nephropathy

In treating chronic nephropathy,Luo Lingjie,a chief physician,pays attention to regulating the balance between yin and yang,treating infection if present,and removing pathogenic factors.He prescribes gentle drugs and uses carefully strongly warming-tonifying ones,emphasizes the importance of persuading the patient to persist in treatment with medication and nurse one's health for recuperation,and is good at combined use of TCM and western medicine therapy and brings the merits of various therapies into full play,with obvious theraoeutic effects.     

Dr.Zhang Ren's Experience in the Acupuncture Treatment of Different Diseases with the Same Therapeutic Principle

Dr.Zhang Ren,the chief physician,is the chairman of Shanghai Acupuncture and Moxibustion Association.Having been engaged in medicine for about 40 years,he is experienced in treating various intractable diseases.In his long years of clinical practice,he advocates taking the TCM differentiation as the basis to seek for the acupuncture method for treatment of modern intractable diseases.The author of this essay had the fortune to follow Dr.Zhang in study.The following is a summary of Dr.Zhang's experience in the acupuncture treatment for different intractable diseases with the same therapeutic principle.     

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.