甲基化转移酶Suv39h1基因慢病毒表达载体构建及鉴定

目的构建小鼠H3K9甲基转移酶Suv39h1基因慢病表达毒载体。方法设计并合成带有Kpnl和Xmal酶切位点的引物,以携带Suv39h1 cDNA的PCMV-SPORT6载体为模板扩增目的基因,将其与Lenti-eGFP-Neo载体双酶切,T4连接酶连接,构建成PLenti-eGFP-Suv39h1重组载体,转化感受态细胞DH5α,PCR筛选阳性克隆质粒,酶切与测序鉴定正确后,将慢病毒四质粒系统共转染293T细胞,包装及效价测定。以感染复数(MOI值)为10和30的慢病毒颗粒感染293T细胞,RT-PCR检测Suv39h1 mRNA表达。结果 PCR、酶切及测序结果均显示目的片段插入正确,四质粒共转染293T细胞后,镜下可见95%的细胞表达绿色荧光;效价测定为2.11×108TU/ml;RT-PCR检测显示,MOI值为30的Suv39h1表达量是MOI值为10的3倍,两者均可在293T细胞中均匀稳定表达。结论成功构建Suv39h1基因慢病毒表达载体,为后续Suv39h1基因功能研究奠定了基础。     

人THAP11慢病毒载体的构建及表达研究

目的 构建人死亡相关蛋白11(THAP11)基因的慢病毒载体,并建立其慢病毒表达系统.方法 PCR方法获得人THAP11基因,限制性内切酶酶切和基因重组构建慢病毒载体质粒pBPLV-THAP11-myc,并通过转染HEK293细胞观察绿色荧光蛋白(GFP)的表达以及Western blot检测其表达.在脂质体介导下将重组质粒与包装质粒pLP1和pLP2、包膜质粒pLP/VSVG共转染293FT细胞包装产生慢病毒.结果 构建的质粒经PCR,酶切及测序鉴定正确;该质粒与包装质粒共转染293FT细胞获取的5.5×106TU/ml慢病毒滴度.结论 成功构建了人THAP11基因慢病毒载体质粒THAP11-myc-pBPLV,并建立了其慢病毒表达系统,为后续的应用研究奠定了基础.     

核心结合因子α1过表达慢病毒载体的构建及鉴定

目的构建含人CBFα1/RUNX2基因的过表达慢病毒载体。方法采用PCR技术体外扩增人CBFα1/RUNX2,将扩增产物与慢病毒载体pGC-FU连接,构建重组质粒pGC-FU-hCBFα1/RUNX2,并进行酶切及测序鉴定。鉴定正确的克隆转染293T细胞,经荧光显微镜观察和Western Blot检测hCBFα1/RUNX2基因在293T细胞内的瞬时表达。再利用脂质体转染法将pGC-FU-hCBFα1/RUNX2、pHelper1.0和pHelper2.0三质粒共转染293T细胞,包装产生慢病毒,并通过实时荧光定量PCR检测病毒滴度。结果重组质粒经测序证实,插入片段与人CBFα1/RUNX2基因序列完全一致。荧光显微镜观察以及Western Blot印迹均证实pGC-FU-hCBFα1/RUNX2中携有正确的hCBFα1/RUNX2基因,并能在293T细胞中瞬时表达。包装慢病毒后实时荧光定量PCR检测病毒滴度为(2.00×108)TU/mL。结论成功构建了携带hCBFα1/RUNX2基因的重组慢病毒载体,为进一步研究其在牙周组织再生中的生物学功能奠定了基础。     

人Runx3基因重组慢病毒载体的构建与鉴定

目的构建人Runx3基因重组慢病毒载体。方法 PCR扩增Runx3基因,应用In-Fusion技术将Runx3基因PCR扩增产物交换进入线性化慢病毒载体pGC-FU以构建重组慢病毒质粒pGC-FU-Runx3,并转化大肠杆菌DH5α感受态细胞。对长出的阳性克隆进行PCR鉴定,并进行测序和比对分析。将构建成功的重组慢病毒质粒pGC-FU-Runx3与包装质粒pHelper 1.0、包膜质粒pHelper 2.0共转染293T细胞进行病毒包装。荧光显微镜下观察重组慢病毒质粒pGC-FU-Runx3转染293T细胞后细胞内绿色荧光表达情况。Western blot检测Runx3与EGFP融合蛋白表达情况。实时定量PCR测定病毒滴度。结果重组慢病毒质粒pGC-FU-Runx3经测序和比对分析证实目的基因序列正确。三质粒共转染293T细胞后荧光显微镜下观察细胞内可见明显的绿色荧光。Western blot证实Runx3与EGFP融合蛋白在293T细胞内稳定表达。浓缩病毒后测定滴度为2.0×108TU/ml。结论成功构建携带人Runx3基因的重组慢病毒载体pGC-FU-Runx3,为进一步研究Runx3过表达对慢性乙型肝炎患者外周血Th细胞分化的影响奠定基础。     

大鼠CGRP基因重组慢病毒载体的构建及滴度测定

目的构建含大鼠降钙素相关基因肽(CGRP)基因的慢病毒表达载体,为后续转染目的细胞并研究CGRP的功能奠定基础。方法通过基因工程技术将CGRP基因克隆到穿梭质粒中,构建Puc57-CGRP质粒,用双酶切法构建慢病毒表达载体(pLenO-DCE-CGRP),将该质粒载体与4种辅助包装质粒共转染293T细胞,转染的293T细胞继续培养48h后,收集其上清液,浓缩得到高滴度的慢病毒液,然后采用倍比稀释法和流式细胞术检测病毒滴度,并通过实时定量聚合酶链反应(PCR)检测293T细胞中CGRP基因的表达。结果成功构建了pLenO-DCE-CGRP的重组慢病毒载体,滴度为5.1×108TU/mL。结论成功构建了含CGRP基因高滴度的慢病毒载体,为后续转染间充质干细胞(MSC)并研究CGRP的功能奠定了基础。     

VEGF和Smad7双基因过表达慢病毒载体的构建

目的：构建过表达VEGF和Smad7双基因的慢病毒载体,为勃起功能障碍基因治疗的研究提供有效工具。方法：根据GenBank中基因信息,设计合成VEGF和Smad7引物,采用overlap PCR方法扩增目的基因片段,运用基因重组技术将其克隆至慢病毒表达载体Ubi-MCS-3FLAG-CBh-gcGFP-IRES-puromycin,经酶切、测序对重组质粒进行验证。将重组质粒和Helper1.0、pHelper2.0辅助质粒共转染293T细胞,包装双基因过表达慢病毒并测试其滴度。结果：经酶切和测序鉴定表明VEGF和Smad7双基因重组慢病毒载体构建成功,荧光法测定重组慢病毒滴度高（2E+8TU/mL)。VEGF和Smad7重组慢病毒能高效转染293T细胞,Western blot检测显示VEGF和Smad7蛋白在靶细胞中过表达。结论：成功构建了携带VEGF和Smad7基因并能正确表达的高滴度的重组慢病毒载体。     

大鼠Smad7基因慢病毒载体的构建及鉴定

目的:构建大鼠Smad7慢病毒载体。方法:提取大鼠大脑皮质及肾脏的总RNA,逆转录PCR扩增获得Smad7目的基因片段,EcoRI及BamHI酶切连接慢病毒载体质粒pCDH-CMV-MCS-EF1-copGFP,构建融合copGFP共表达的Smad7重组质粒。转化感受态细菌,筛选阳性克隆,经PCR扩增及测序鉴定正确后,Smad7重组质粒与慢病毒包装质粒共转染至包装细胞293TN,包装产生病毒液,转染H1299细胞株测定病毒滴度。结果:通过扩增获得1.3kb Smad7 cDNA片段,测序结果证实目的基因与Genebank序列完全一致,Smad7重组质粒慢病毒包装后获得Smad7慢病毒载体,病毒滴度为1.0×107ifu/ml。结论:成功构建大鼠Smad7慢病毒载体,为进一步研究Smad7基因的相关功能提供了适合的转染载体。     

人神经营养素3基因重组慢病毒载体的构建与鉴定

目的:构建携带人神经营养素3(hNT3)基因的重组慢病毒表达载体。方法:通过双限制性内切酶消化和连接的方法构建pGC-E1-hNT3-EGFP质粒,将该质粒转化大肠杆菌DH5α,通过PCR、酶切、测序和对比验证hNT3,通过Lipofectamine 2000将pGC-E1-hNT3-EGFP、pHelper 1.0和pHelper 2.0三质粒系统共转染293T细胞包装病毒,经大量扩增后,应用实时定量PCR法鉴定和测定滴度。结果:克隆得到512 bp目的hNT3全长基因,经过PCR扩增、酶切鉴定、序列测定证实,hNT3基因成功克隆到慢病毒载体中,可实现hNT3基因的表达,且病毒滴度为5×107TU/L。结论:成功构建表达人hNT3基因的慢病毒载体并能在293T细胞中扩增获得足够高的病毒滴度,可作为基因转染的有效工具在将来神经损伤修复实验研究中得到应用。     

靶向磷脂酰肌醇蛋白聚糖3的嵌合体抗原受体慢病毒载体构建及病毒包装滴定的实验研究

目的 构建靶向磷脂酰肌醇蛋白聚糖3 (glypican-3,GPC3)的慢病毒载体,并进行慢病毒载体的鉴定、包装及病毒滴度测定.方法 设计靶向GPC3抗原的嵌合性抗原受体(chimeric antigen receptor,CAR)分子重组基因及特异性引物,用聚合酶链反应(polymerase chain reaction,PCR)对CAR分子重组基因进行体外扩增及PCR反应片段搭桥,双酶切后定向插入到pCDH质粒,构建pCDH-anti-GPC3-CAR慢病毒表达载体,经菌落PCR、DNA凝胶电泳及测序鉴定.将目的 质粒与包装质粒共转染293T细胞,收集上清液按不同比例稀释后感染293T细胞,流式细胞术检测anti-GPC3-CAR表达并计算病毒滴度.结果 经菌落PCR及测序证实,正确构建重组慢病毒载体pCDH-anti-GPC3-CAR,包装后的病毒滴度为(1.50～3.24)×106 TU/ml.结论 本研究成功构建携带不同共刺激分子的pCDH-anti-GPC3-CAR慢病毒表达载体,可在293T细胞中表达并产毒,为后续构建CAR免疫细胞提供技术储备.     

Math1基因重组慢病毒的构建及其在293T细胞中的表达

目的 构建携带Math1基因的重组慢病毒载体,检测其滴度,检测其在293T细胞中的表达.方法 PCR扩增Math1基因,将其连入慢病毒栽体pLenti-GFP中;在感受态细胞DH5α中培养扩增,并行Math1基因的测序鉴定;将重组的慢病毒四质粒共转染293T细胞,收获并浓缩病毒;感染293T细胞和提取细胞DNA后用实时定量PCR法检测病毒滴度.用逆转录PCR和westem blot法检测Mathl基因在感染病毒的293T细胞中的表达.结果 构建的慢病毒载体pLenti-Math1-GFP经测序分析证实基因序列正确.四质粒共转染293T细胞后,荧光显微镜下可见大量绿色荧光.包装后慢病毒测定滴度约为3X10"Tu/L.逆转录PCR和Western blot法均能检测Math1基因在感染病毒的293T细胞中的表达.结论 成功构建携带Math1基因的重组慢病毒,并能在293T细胞中表达.     

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…     

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.     

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.     

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.     

猪肺磷脂注射液联合经鼻持续气道正压通气对呼吸衰竭早产儿的临床疗效及肌酸激酶同工酶活性的影响

目的 探讨猪肺磷脂注射液联合经鼻持续气道正压通气(NCPAP)对呼吸衰竭早产儿的临床疗效及肌酸激酶同工酶活性(CK-MB)的影响.方法 选取呼吸衰竭早产儿80例,分为观察组和对照组各40例.对照组采用NCPAP给氧治疗,观察组给予NCPAP给氧联合猪肺磷脂气管内给药.观察两组患儿治疗前及治疗12h、24 h后PaO2、PaCO2、血氧饱和度(SaO2)、pH的变化情况,检测治疗前及治疗5d后血清CK-MB水平;评估两组患儿的临床治疗效果.结果 两组患儿PaO2、PaCO2、SaO2、pH比较,差异均有统计学意义(P＜0.05),其中观察组治疗后的PaO2、SaO2、pH均高于对照组,PaCO2则低于对照组.两组的PaO2、SaO2、pH均随观察时间延长而升高(P＜0.05),PaCO2均随观察时间的延长而降低(P＜0.05).观察组治疗有效率为87.5％,显著高于对照组的70.0％ (P ＜0.05).治疗5d后两组患儿血清CK-MB水平均较前降低(P＜0.05),且观察组明显低于对照组(P＜0.05).结论 猪肺磷脂注射液气管内给药联合NCPAP可以显著降低呼吸衰竭早产儿CK-MB的含量,提高治疗有效率,起到很好的呼吸循环支持作用.     

Survey and practice of reporting quality of randomized controlled clinical trials on traditional Chinese medicine

Evidence obtained from randomized controlled trials （RCTs） has been generally accepted as the gold standard in the evaluation of clinical effectiveness. Readers need to understand the trial design, implementation, results, analysis and interpretation, so as to fully Jnderstand the results of RCTs. Thus, the investigators of RCTs have to report these items in a complete, accurate and clear manner. Since 1998, we have conducted several evaluations on the reporting quality of RCTs published in Chinese journals on traditional Chinese medicine （TCM） and results have shown that there is an urgent need for higher quality RCTs on TCM.     

TCM Treatment of Ankylosing Spondylitis by Tonifying the Kidney and Strengthening the Governor Vessel

Ankylosing spondylitis is a chronic and progressive disorder with inflammation mainly involving the central axis joints. It mainly affects the cervical spine and the lumbosacral area, with the pathogenesis closely related to the kidney and the Governor Vessel (GV). TCM holds that the syndrome is deficiency in origin and excess in superficiality, which is due to insufficiency of the kidney, deficiency of GV, and blocking of the channels with the invasion of exogenous evil, leading to poor circulation of qi and blood and malnutrition of the bones, muscles and joints. The TCM method of tonifying the kidney and strengthening GV to regulate circulation of qi and blood and check the arthralgia pain should be adopted, with the Kidney-Tonifying and GV Strengthening Decoction (益肾强督汤) prescribed.     

IMPROVING P-gp EXPRESSION IN HUMAN MONONUCLEAR CELLS IN VITRO TRANSFECTED BY MULTIDRUG RESISTANCE-1 mRNA

CHEMOTHERAPY playsa greatrolein the treat- ment of malignanttumors,especiallyingynecolo- gicalones.But inanticancerchemotherapy,leuko-cytopeniaisfrequentlytheprimarydose-limitingsideeffect factor.Moreover,cancersarefrequentlychemoresistantbe-causeof overexpressionof P-glycoprotein(P-gp), which isencodedby multidrugresistancegene (MDR1 ) and detectableinup to50% ofhuman cancersand renderscellsresistancetoanticancerdrugs.The safetyand potentialtherapeuticbenefitof mdr1 gene transferredto h…