去甲斑蝥素体外抑制人胰腺癌细胞株PANC-1增殖的实验研究

目的 研究去甲斑蝥素(NCTD)体外抑制人胰腺癌细胞株PANC-1的增殖作用.方法 以不同浓度NCTD处理PANC-1细胞24 h后,采用MTT法检测其对PANC-1细胞的生长抑制作用;Hoechst 33258染色观察PANC-1细胞形态的变化;Western blot印迹法检测NF-κ B p65和AKT蛋白的表达.结果 NCTD可导致处理的细胞增殖速度减慢,且抑制效应随药物剂量的增加而增强,细胞出现典型凋亡形态学改变,NF-κB p65和AKT蛋白的表达均出现明显下降(P＜0.01).结论 去甲斑蝥素能明显抑制胰腺癌PANC-1细胞的生长并诱导其凋亡,其机制可能是通过下调NF-κB p65和AKT的表达来实现的.     

伏立诺他抑制胰腺癌PANC-1细胞增殖及其血管生成拟态的相关研究

目的 研究伏立诺他(SAHA)对人胰腺癌PANC-1细胞体外增殖、迁移及其细胞凋亡的影响，观察SAHA对胰腺癌PANC-1细胞主导的血管生成拟态的作用以及对PANC-1细胞中基质金属蛋白酶2(matrix metalloproteinase-2,MMP-2)表达水平的影响。 方法 倒置显微镜下观察不同浓度的SAHA对PANC-1细胞增殖的作用。MTT比色法检测SAHA对PANC-1细胞的毒性作用。行细胞划痕试验观察SAHA对PANC-1细胞迁移的作用。流式细胞仪分析SAHA对胰腺癌PANC-1细胞凋亡的影响。利用细胞三维培养技术观察经SAHA诱导24 h后的胰腺癌PANC-1细胞体外类血管结构形成情况。Western blotting技术检测SAHA处理后的胰腺癌PANC-1细胞中MMP-2的表达水平。 结果 SAHA能显著抑制人胰腺癌PANC-1细胞的生长，且呈明显的剂量依赖性关系。与对照组相比，SAHA组均能抑制PANC-1细胞迁移(均P＜0.01)。SAHA可诱导人胰腺癌PANC-1细胞发生细胞凋亡。体外三维培养显示，SAHA组较对照组均能抑制PANC-1细胞主导的血管生成拟态(均P＜0.05)。随着SAHA浓度的递增，PANC-1细胞中MMP-2的表达水平呈现下降趋势(P＜0.05)。 结论 组蛋白去乙酰化酶抑制剂SAHA能有效抑制人胰腺癌PANC-1细胞体外增殖、迁移并诱导其发生细胞凋亡，SAHA下调MMP-2的表达可能是SAHA抗胰腺癌血管生成拟态的机制之一。      

白藜芦醇通过Ca2+/Caspase-3途径减轻内质网应激诱导的神经细胞凋亡

目的：研究白藜芦醇对内质网应激诱导神经细胞凋亡的影响及机制。方法：采用内质网应激诱导剂毒胡萝卜素(thapsigargin,TG)处理PC12细胞,构建内质网应激模型。免疫印迹法检测GRP78蛋白表达,激光共聚焦和Fluo-3/AM检测胞浆钙离子浓度,比色法测定Caspase-3活性,流式细胞术检测细胞凋亡率。结果：白藜芦醇减轻内质网应激诱导剂TG引起的GRP78高表达,阻止内质网应激诱导的钙超载。白藜芦醇和钙离子螯合剂BAPTA均抑制内质网应激诱导的Caspase-3活化和神经细胞凋亡。结论：白藜芦醇可能通过Ca²⁺/Caspase-3途径抑制内质网应激诱导的神经细胞凋亡。     

过表达肌浆网钙ATP酶对心肌细胞内质网应激的影响

目的 研究过表达肌浆网钙ATP酶2a(SERCA2a)对心肌细胞内质网应激的影响.方法 构建含SERCA2a cDNA的重组腺病毒载体(Adv-SERCA2a),以缺氧和衣霉素诱导内质网应激,随机将体外培养的心肌细胞分为以下6组:正常对照组、缺氧组、衣霉素组、过表达SERCA2a组、SERCA2a+缺氧组和SERCA2a+衣霉素组.采用Western印迹法检测内质网应激蛋白GRP78及C/EBP同源蛋白(CHOP)表达水平,流式细胞术检测心肌细胞凋亡率,台盼蓝染色检测心肌细胞存活率.结果 过表达SERCA2a+缺氧组GRP78及CHOP蛋白表达较缺氧组分别低49.1%和52.7%,细胞凋亡率较缺氧组低66.0%,细胞存活率较缺氧组高13.4%,差异有统计学意义(均P<0.05);过表达SERCA2a+衣霉素组GRP78及CHOP蛋白表达较衣霉素组分别低50.4%和66.1%,细胞凋亡率较衣霉素组低54.0%,细胞存活率较衣霉素组高6.7%,差异有统计学意义(均P<0.05).结论 过表达SERCA2a通过下调内质网应激蛋白表达,降低心肌细胞内质网应激水平,缓解过度内质网应激介导的细胞损伤.     

车叶草苷通过内质网应激促进胰腺癌细胞凋亡的机制研究

目的:探讨车叶草苷(ASP)通过内质网应激(ERS)诱导胰腺癌(PC)细胞凋亡的机制。方法:选取人胰腺癌PANC-1细胞作为研究对象。将PANC-1细胞按照随机数字表法分为4组，分别为对照组、ASP组、ERS抑制剂4-苯基丁酸(4-Phenylbutyric acid, 4-PBA)组和ASP+4-PBA组。采用CCK-8检测细胞增殖情况，采用流式细胞术检测细胞凋亡情况，Transwell法检测细胞迁移，蛋白质印迹法检测细胞中活化转录因子6(ATF6)、C/BEP环腺苷酸反应元件结合转录因子同源蛋白(CHOP)、活化的半胱氨酸蛋白酶3(cleaved-caspase 3)、蛋白激酶R样内质网激酶(PERK)及肌醇依赖性激酶1α磷酸化蛋白(p-IRE1α)相对表达水平。结果:随着ASP浓度的增加，PANC-1细胞增殖率呈下降趋势。与对照组相比，ASP组迁移细胞数量降低，细胞凋亡率增加，ATF6、CHOP、cleaved-caspase-3、PERK及p-IRE1α蛋白相对表达水平上升，差异均有统计学意义(P<0.05)。与ASP组相比，ASP+4-PBA组细胞迁移数量增多、细胞凋亡...     

OK-432抗人卵巢癌细胞SKOV3生长及诱导凋亡机制研究

目的 观察OK-432(主要活性成分为OK-PSA)体外对人卵巢癌细胞株SKOV3凋亡的影响，探讨其作用机制。方法 对数生长期的SKOV3细胞随机分为对照组和OK-432给药组(浓度分别为10、20、40、80、160mg/L),给药24h之后，倒置显微镜观察细胞形态，MTT法测定OK-432对SKOV3细胞增殖的影响。应用20mg/L的OK-432处理SKOV3细胞，免疫荧光法检测内质网功能相关蛋白PDI随时间表达情况，Western blotting检测SKOV3肿瘤细胞内质网应激和凋亡相关蛋白随时间表达水平。结果 MTT法检测结果显示，与对照组相比较，OK-432可呈剂量依赖性抑制SKOV3细胞增殖(P<0.05),20mg/L的OK-432即可使肿瘤细胞变圆，体积缩小，脱壁细胞增多；随着OK-432给药时间延长，PDI在细胞核周聚集的量逐渐增加，凋亡相关蛋白cleaved-caspase 3、内质网应激相关蛋白Grp-78、CHOP表达量也逐渐增加。结论 OK-432可能通过内质网应激来诱导SKOV3凋亡。     

缺氧复氧诱导大鼠心肌细胞内质网应激反应

目的:观察大鼠心肌细胞缺氧复氧时内质网应激蛋白表达的改变及其意义,以探讨心肌缺血再灌注损伤与内质网应激的关系.方法:原代培养乳鼠心肌细胞,缺氧5.5 h后复氧2～24 h制备缺氧复氧损伤模型,用Western blot和RT-PCR方法测定内质网应激蛋白GRP78表达水平.2-脱氧葡萄糖作为本实验的阳性对照,2-脱氧葡萄糖孵育心肌细胞10 h,用Western blot和RT-PCR检测GRP78表达水平.结果:缺氧复氧处理的心肌细胞活力减低,胞内乳酸脱氢酶漏出.与对照组比较,缺氧复氧组心肌细胞内质网应激蛋白GRP78在蛋白及mRNA水平表达均于复氧后2 h开始增加,4 h达峰值,蛋白水平为对照组的142%,mRNA水平为对照组的200%,表达的增加可持续到复氧24 h.结论:缺氧复氧可以诱导心肌细胞内质网应激.     

miR-217靶向调控HMGA2基因对内质网应激介导的口腔癌细胞自噬与凋亡的影响

目的 探究微小RNA 217（miRNA-217）对口腔癌细胞中内质网应激介导的自噬与凋亡的影响及其分子机制。方法 培养人口腔癌细胞和人正常口腔角质形成细胞,实时荧光定量聚合酶链式反应（RT-qPCR）检测细胞中miR-217与高迁移率族蛋白 A2（HMGA2）表达水平;将人口腔癌细胞系SAS分为对照组、miR-NC组、miR-217 mimic组和miR-217 mimic+4-PBA组4组,脂质体法进行转染和内质网应激抑制剂4-苯丁酸处理后,流式细胞术检测细胞凋亡率,Hoechst33342染色观察细胞凋亡情况,细胞免疫荧光染色检测细胞中微管相关蛋白1轻链3（LC3）表达,蛋白质免疫印迹（Western Blot）测定细胞中自噬相关蛋白LC3I、LC3II及Beclin-1的表达水平,RT-qPCR和Western Blot测定细胞内质网应激相关分子CCAAT/增强予结合蛋白同源蛋白（CHOP）、葡萄糖调节蛋白78（GRP78）及天冬氨酸蛋白水解酶-12（Caspase-12）的表达水平;双荧光素酶报告基因检测实验和Western Blot验证miR-217对HGMA2的靶向作用。结果 与人正常口腔角质形成细胞HNOK比较,人口腔癌细胞HSC3、SAS、SCC15、FaDu中miR-217相对表达量下调而HMGA2相对表达量上调（P<0.05）;与对照组比较,miR-217 mimic组SAS细胞凋亡率升高,有大量呈亮蓝色高荧光的凋亡细胞,LC3荧光强度升高,LC3-Ⅱ/LC3-Ⅰ比值与Beclin-1蛋白相对表达量均上调,GRP78、CHOP、Caspase-12 mRNA相对表达量与蛋白相对表达量均上调（P<0.05）;而与miR-217 mimic组比较,miR-217 mimic+4-PBA组SAS细胞凋亡率下降,呈亮蓝色高荧光的凋亡细胞明显减少,LC3荧光强度降低,LC3-Ⅱ/LC3-Ⅰ比值与Beclin-1蛋白相对表达量均下调,GRP78、CHOP、Caspase-12 mRNA相对表达量与蛋白相对表达量也均下调（P<0.05）;HMGA2与miR-217在特定区域存在碱基互补现象,且miR-217靶向负调控HGMA2表达。结论 miR-217可能通过促进内质网应激途径诱导口腔癌细胞发生自噬与死亡,其机制可能与靶向负调控HMGA2表达相关。     

高糖诱导的心肌细胞损伤的内质网应激机制研究

目的:本文对高糖诱导的心肌细胞损伤的内质网应激机制研究,为临床治疗提供借鉴.方法:心肌细胞随机分为3组:对照组、高糖组和4-BPA组.高糖组给予高糖处理12h,4-BPA组细胞在高糖处理的第6h给予4-BPA处理.免疫印迹法分析各组细胞内质网应激蛋白CHOP、BIP、PERK的表达.结果:高糖引起心肌细胞内质网应激蛋白CHOP、BIP、PERK的增强表达,且与对照组相比,差异具有统计学意义(P＜0.01);4-BPA处理后上述蛋白的异常表达得到部分改善,且与高糖组相比,差异具有统计学意义(P＜0.01).结论:高糖损伤心肌细胞可能是通过激活细胞内内质网应激信号通路实现.     

内质网应激在高脂血症大鼠心肌细胞凋亡中的作用

目的 研究内质网应激是否在高脂血症大鼠诱导心肌细胞凋亡中起作用。方法 通过建立高脂血症大鼠模型,全自动化生化仪检测血清甘油三酯(TG)及胆固醇(TC)水平;HE染色观察心肌组织的病理学变化;TUNEL法检测心肌细胞凋亡;免疫组化法及RT-PCR技术检测心肌细胞内质网应激信号通路分子GRP78的表达变化。结果 研究显示在喂养12 W时模型组大鼠血清TC、TG含量明显高于对照组(P<0.01);大鼠模型组较正常组心肌组织排列紊乱、边界不清、心肌纤维断裂、部分细胞核溶解消失;模型组大鼠心肌细胞凋亡率明显高于正常组(P<0.05);大鼠心肌GRP78mRNA及蛋白的表达量,模型组均较对照组明显升高(P<0.05)。结论 内质网应激途径可能在高脂血症诱导心肌细胞凋亡中起到重要作用。     

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…