顺铂联合COX-2选择性抑制剂NS-398对食管癌Eca-109细胞增殖和凋亡的影响

目的 体外观察顺铂(diamminedichloroplatinum, DDP)以及DDP联合环氧合酶-2(cyclooxygenase, COX-2)选择性抑制剂NS-398对人食管癌Eca-109细胞增殖和凋亡的影响,比较单独应用DDP与DDP联合NS-398应用于食管癌Eca-109细胞的抗肿瘤效应.方法 CCK-8法检测不同浓度的DDP(1.25、2.50、5.00、10.00、20.00 mg/L)单独作用及DDP联合NS-398(1.00、10.00 μmol/L)作用Eca-109细胞24 h的细胞增殖抑制率.琼脂糖凝胶电泳技术检测DDP(1.25、2.50、5.00 mg/L)单用及联合NS-398(1.00、10.00、80.00 μmol/L)作用Eca-109细胞24 h和48 h的DNA Ladder出现情况.透射电镜观察DDP单用以及联合NS-398作用于Eca-109细胞24 h超微结构的变化.药物未处理组作为对照组.结果 细胞增殖抑制实验表明顺铂、NS-398对Ec-109细胞有剂量依赖性抑制增殖作用(P<0.05).顺铂联合NS-398用药组细胞增殖抑制率明显高于同浓度顺铂单用组,且随添加的NS-398的剂量的增加而增加,DDP联合NS-398用药组对Ec-109细胞的增殖抑制效应和诱导凋亡效应明显高于DDP单药组,二者具有协同效应.结论 与DDP单用相比,添加低剂量NS-398能够增强DDP对Eca-109细胞的增殖抑制效应和诱导凋亡效应.     

褪黑素联合顺铂对人食管癌Eca109细胞的抑制作用及其机制

目的:观察褪黑素(Mel)联合顺铂(DDP)对人食管癌Eca109细胞生长的抑制作用,并探讨相关的分子机制。方法:通过MTT实验检测Mel与DDP不同浓度分别单用或两药联合处理后食管癌Eca109细胞增殖情况;流式细胞仪检测用药后细胞凋亡情况;Western blot法检测Bax、Bcl-2蛋白的表达。结果:Mel与DDP联用对食管癌Eca109细胞增殖的抑制率均高于单用Mel与DDP时对食管癌Eca109细胞的抑制率(P<0.05);Mel单独诱导食管癌Eca109细胞凋亡作用不强,但可增强DDP诱导的食管癌细胞凋亡(P<0.01);Mel与DDP联用后食管癌Eca109细胞Bcl-2蛋白表达减弱,Bax蛋白表达增强。结论:Mel可增强DDP对人食管癌Eca109细胞增殖的抑制作用,并具有增强DDP诱导人食管癌Eca109细胞凋亡的作用,其机制可能与上调Bax表达和下调Bcl-2的表达有关。     

丹参酮ⅡA联合顺铂对Hela细胞的凋亡作用

目的研究丹参酮ⅡA(Tan ⅡA)联合顺铂(DDP)在体外对宫颈癌Hela细胞的凋亡作用及凋亡蛋白Bax与Bcl-2表达水平的变化。方法采用苏木素-伊红染色法观察细胞的形态学变化;流式细胞仪检测药物作用后的细胞凋亡情况;Western Blot测定Bax与Bcl-2蛋白在Hela细胞中的表达水平。结果对照组细胞未见凋亡,而两药单用组及联合组均可见凋亡细胞;除对照组外其他各组均可检测到细胞亚二倍体凋亡峰,Tan ⅡA+DDP组凋亡率高于两药单用组凋亡率,差别均有统计学意义(P<0.05);Bcl-2蛋白在各组中均有表达,但表达水平变化不明显(P>0.05);Bax蛋白在对照组中几乎不表达,而在各药物处理组中均有表达,且两药联合组中表达水平高于两药单用组,差别均有统计学意义(P<0.05)。结论Tan ⅡA与DDP二者联合可以增加Hela细胞凋亡率,其中通过增加Bax蛋白的表达,使Bax/Bcl-2比值升高,可能是其诱导细胞凋亡的机制之一。     

依维莫司联合顺铂对人胃癌SGC7901细胞凋亡及Bcl-2、Bax表达的影响

目的探讨依维莫司(RAD001)联合顺铂对人胃癌SGC7901细胞凋亡及Bcl-2、Bax表达的影响。方法体外培养SGC7901细胞,将其分为对照组,顺铂组(顺铂2.50 mg/L),RAD001低浓度组(RAD001 5.00nmol/L)、RAD001中浓度组(RAD001 10.00nmol/L)、RAD001高浓度组(RAD001 20.00nmol/L)及联合组(顺铂1.25mg/L+RAD001 5.00nmol/L),采用流式细胞术检测SGC7901细胞的凋亡率,采用免疫细胞化学、Western blot检测SGC7901细胞Bcl-2和Bax的表达情况。结果 RAD001、顺铂作用SGC7901细胞48h后,对照组,顺铂组,RAD001低、中、高浓度组及联合组的细胞凋亡率分别为(8.04±0.48)%、(18.94±0.75)%、(10.47±1.05)%、(13.93±2.45)%、(17.20±0.65)%及(23.18±1.05)%。除RAD001低浓度组细胞凋亡率与对照组比较,差异无统计学意义(P>0.05),其他各组细胞凋亡率均较对照组显著增加(P<0.05)。与对照组比较,顺铂组、RAD001组及联合组SGC7901细胞Bcl-2蛋白表达下降,而Bax蛋白表达增加,Bcl-2/Bax比值降低(P<0.05),联合组改变最明显。结论 RAD001联合顺铂可通过上调Bax和下调Bcl-2蛋白的表达诱导SGC7901细胞凋亡。     

水飞蓟宾联合顺铂诱导人肺腺癌细胞A549凋亡及机制

目的探讨水飞蓟宾联合顺铂对人肺癌细胞A549的杀伤效应及机制。方法将人肺癌细胞A549分别用水飞蓟宾、顺铂及两者联合干预后,采用MTT法检测不同干预方案对A549细胞的抑制作用,流式细胞术检测细胞凋亡情况,Western blot法检测细胞Bcl-2与Bax的表达;利用小RNA抑制Bax的表达后,观察水飞蓟宾联合顺铂对A549细胞凋亡的诱导作用。结果水飞蓟宾联合顺铂对A549细胞增殖的抑制率(69.9±6.8)%,凋亡率(53.5±4.2)%;水飞蓟宾对A549细胞增殖的抑制率(6.9±0.7)%,凋亡率(7.9±1.5)%;顺铂分别为(13.3±2.9)%和(16.8±2.2)%。水飞蓟宾联合顺铂治疗A549细胞的增殖抑制率和凋亡率均优于单用水飞蓟宾和顺铂治疗组(P0.05)。水飞蓟宾联合顺铂诱导A549细胞凋亡依赖于细胞内Bcl-2/Bax的比值,当转染Bax si RNA后,水飞蓟宾联合顺铂对A549的凋亡诱导率为(27.6±3.0)%,未转染Bax si RNA则两者联合治疗A549凋亡诱导率为(50.6±4.7)%,差异有统计学意义(P0.05)。结论水飞蓟宾联合顺铂通过降低Bcl-2/Bax比例诱导人肺癌细胞发生凋亡。     

沉默ADRB2基因对卵巢上皮性癌细胞生物学特性及顺铂敏感性的影响

目的 探讨下调β2型肾上腺素受体(beta-2 adrenergic receptor,ADRB2)基因表达对卵巢上皮性癌细胞顺铂敏感性以及细胞增殖、凋亡的影响及机制。 方法 以人卵巢癌细胞株SKOV3/DDP为研究对象,采用小RNA干扰技术沉默ADRB2的表达,实验分为4组:ADRB2 shRNA1感染组、ADRB2 shRNA2感染组、阴性对照shRNA感染组、未感染的SKOV3/DDP细胞作为空白对照组。采用不同浓度(0、2.5、5、10、20、40 μmol/L)顺铂作用后,采用CCK-8法检测4组卵巢癌细胞的生长抑制率,流式细胞仪检测4组细胞的凋亡率,Western blot法检测4组卵巢癌细胞中caspase-9、Bcl-2及Bax蛋白的表达,采用单因素方差分析进行比较。 结果 不同浓度的顺铂处理后,4组细胞的生长抑制率均逐渐升高,且呈剂量依赖性。2组ADRB2 shRNA感染细胞的顺铂耐药IC50分别为(29±8)μmol/L和(32±11)μmol/L,明显低于阴性对照组[(104±15)μmol/L,P<0.01]和空白对照组[(112±10)μmol/L,P<0.01];4组细胞的凋亡率逐渐增加,且呈剂量依赖性。2组ADRB2 shRNA感染细胞的凋亡率均明显高于阴性对照组(P<0.01)。4组细胞的caspase-9、Bax蛋白的表达水平逐渐增加,且呈浓度依赖性,2组ADRB2 shRNA感染细胞的caspase-9、Bax蛋白水平均明显高于阴性对照组(均P<0.05)。4组细胞的Bcl-2蛋白的表达水平逐渐降低,且呈浓度依赖性,2组ADRB2 shRNA感染细胞的Bcl-2蛋白水平均明显低于阴性对照组(均P<0.05)。 结论 顺铂诱导可使ADRB2基因下调的顺铂耐药卵巢癌细胞的增殖减少、凋亡增加,其可能机制为通过调节caspase-9、Bcl-2和Bax凋亡家族蛋白的表达,从而增加细胞对顺铂的敏感性。      

黄芪注射液联合顺铂对HeLa细胞生长的影响

目的研究不同浓度黄芪注射液单独或联合顺铂对HeLa细胞生长的影响。方法单独或联合应用不同浓度的黄芪注射液、顺铂作用于人宫颈癌HeLa细胞系,采用3-(4,5-二甲基噻唑-2)-2,5-二苯基四氮唑溴盐(MTT)法检测其对细胞生长的影响,流式细胞仪检测细胞凋亡率,Western blot检测凋亡相关蛋白p53、Bax、Bcl-2的表达。结果 MTT法检测结果显示黄芪注射液对HeLa细胞生长影响的最佳作用浓度为1 000 g.L-1,最佳作用时间为48 h。黄芪注射液组、顺铂组、黄芪注射液联合顺铂组HeLa细胞凋亡率均高于对照组,且黄芪注射液联合顺铂组HeLa细胞的凋亡率显著高于黄芪注射液组和顺铂组,各组之间的差异均有统计学意义(P<0.05)。各组间比较,黄芪注射液联合顺铂组Bax、p53蛋白的表达量最高,Bcl-2蛋白的表达量最低,差异均有统计学意义(P<0.05)。结论高浓度的黄芪注射液对HeLa细胞有促凋亡作用,可协同顺铂增强对HeLa细胞的促凋亡作用,其作用机制与增强p53、Bax蛋白的表达、减弱Bcl-2蛋白的表达有关。     

低相对分子质量肝素增强顺铂诱导肝癌细胞的凋亡作用

目的：探讨低相对分子质量肝素(low molecular weight heparin,LMWH)对顺铂(cisplatin,DDP)诱导肝癌细胞凋亡作用的影响及其作用机制。方法：实验分为对照组、LMWH组、DDP组、LWMH与DDP联合应用组。应用MMT法检测药物对肝癌SMMC-7721细胞增殖的影响;吖啶橙/溴化乙锭双荧光法和流式细胞术检测各组细胞凋亡情况;实时荧光定量PCR和Western印迹检测细胞凋亡相关蛋白Fas,Bcl-2和Bax的表达。结果：MTT检测结果显示：与对照组相比,DDP组及LWMH与DDP联合应用组的SMMC-7721细胞生长均有显著的抑制(均P<0.05);LMWH组的Fas,Bcl-2和Bax mRNA及蛋白均无明显的变化(均P>0.05);DDP组Fas表达量明显增加(P<0.05),而Bcl-2轻度降低(P<0.05),Bax 无明显变化(P>0.05)。LWMH与DDP联合应用组与对照组及DDP组相比,Bcl-2表达明显降低(均P<0.05),Bax表达明显增高(均P<0.05);Fas表达量与对照组相比明显增加(P<0.05),但与DDP组相比增加不明显(P>0.05)。结论：LMWH具有增强DDP诱导肝癌SMMC-7721细胞凋亡的作用,其机制可能与LMWH增强DDP诱导的细胞凋亡中线粒体通路和促使细胞凋亡增加有关。     

Survivin反义寡核苷酸联合TCS诱导食管癌细胞Eca-109凋亡的研究

目的:探讨survivin反义寡核苷酸(Antisense oligodeoxynucleotide,ASODN)联合TCS诱导细胞凋亡的作用及其分子机制.方法:以食管癌细胞Eca-109为实验对象,将实验分6组:未处理组、脂质体组、survivin正义寡核苷酸组(Sense oligodeoxyn ucleotide,SODN)、survivin反义寡核苷酸组(Antisense oligodeoxynucleotide,ASODN)、天花粉蛋白组(Trichosan thein,TCS)、survivin反义寡核苷酸联合天花粉蛋白组.各处理因素作用食管癌细胞Eca-109 48 h,RT-PCR检测Eca-109细胞survivin mRNA表达变化;Western blot检测Survivin、Bcl-2、Bax、Caspase-3蛋白表达变化;AnnexinV-FITC/PI双染法检测Eca-109细胞早期凋亡率.结果:ASODN组、TCS组和联合组的survivin mRNA和Survivin蛋白表达水平明显降低,联合组较单独药物组(ASODN组、TCS组)降低,而以上3组的早期凋亡率和Caspase-3蛋白表达水平明显升高,联合组较单独药物组增高(P＜0.05);TCS组和联合组细胞的Bcl-2蛋白的表达水平明显降低,Bax蛋白的表达增加.结论:TCS联合survivin的ASODN在诱导Eca-109细胞的凋亡方面,能够发挥协同作用;TCS和survivin的ASODN共同抑制survivin基阒表达,TCS下调Bcl-2蛋白表达和上调Bax蛋白表达,分别激活caspase级联反应上游、下游途径,是两药发挥协同作用的分子基础.     

褪黑素联合顺铂对人食管癌Eca109细胞株的增殖抑制作用研究

目的：观察褪黑素（Mel）联合顺铂（DDP）对人食管癌Eca109细胞增殖和凋亡的影响.方法：以DDP 2.5 mg/L、不同浓度Mel及两药联合作用于食管癌Eca109细胞.通过MTT实验检测用药后对食管癌Eca109细胞增殖的影响,并计算抑制率;通过集落克隆形成实验观察用药后对细胞集落克隆形成的影响;通过流式细胞仪检测用药后细胞凋亡率的变化.结果：DDP 2.5 mg/L与不同浓度Mel联合用药组对食管癌Eca109细胞生长抑制率均明显高于单独使用DDP或Mel组（P＜0.01）;10-5 mol/L Mel诱导人食管癌Eca109细胞的24 h凋亡率为7.8%,10-5 mol/L Mel与2.5 mg/L DDP联合刺激人食管癌Eca109细胞的24 h凋亡率为32.0%,高于DDP本身诱导的24 h凋亡率9.7%（P＜0.01）.结论：Mel可增强DDP对人食管癌Eca109细胞增殖的抑制作用,并增强其诱导凋亡作用,为临床食管癌的治疗提供了一定的实验研究基础.     

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…     

Acupuncture Treatment of Vomiting

CASE HISTORY A female patient, 46 years old, head of the foreign affairs department of a certain university in Beijing, paid her first visit on October 9, 2006, with the chief complaint of vomiting for one month. She got vomiting after meals in early September. Before that, she had discomfortable sensation in the stomach due to angry with others, but she didn't pay much attention. Later, it developed into vomiting after eating. After the vomiting, the discomfort would be relieved, but with slight hypodynamia. She was once diagnosed as having 'neurogenic vomiting'. Having taken some western and Chinese drugs, the above symptoms were a little bit improved, but she would have nausea upon eating and with regurgitation. Because of the fear for vomiting, she did not dare to have food intake, with body weight reduction of 6 kilos in one month.     

Qiu Baoguo''''s Experience in Treating Consumptive Syndromes after Radio-Chemotherapies

Radiotherapy and chemotherapy are the important modern medical therapies for malignant tumors,yet they can also bring about serious local and systemic toxic side reactions so to decrease the patient;'s life quality,manifested by a series of consumptive symptoms.Having engaged in the combined work of Chinese and western medicine for nearly 50 years,the research fellow Qiu Baoguo in Henan Provincial Academy of TCM has developed his unique views on the TCM study of consumptive syndromes.The author of this essay had once the fortune tO follow Dr.Qiu in clinic,and specially would like to introduce in the following Dr.Qiu's experience in treating consumptive syndromes after radio-chemotherapies for patients with malignant tumor.     

Insomnia Due to Deficiency of Both the Heart and Spleen Treated by Acupuncture-Moxibustion and Chinese Tuina

OBJECTIVE: To observe therapeutic effects of the comprehensive therapy of acupuncture-moxibustion and Chinese Tuina for treatment of insomnia due to deficiency of both the heart and spleen. METHODS: 92 cases were divided randomly into the treatment group (treated by acupuncture-moxibustion and Chinese Tuina) and the control group (treated by acupuncture-moxibustion). RESULTS: The therapeutic effect of the treatment group was obviously superior to that of the control group (the CHI2 test showed P < 0.01). CONCLUSIONS: The comprehensive therapy of acupuncture-moxibustion and Chinese Tuina can give marked therapeutic effects for treatment of insomnia due to deficiency of both the heart and spleen.     

Analysis of CK-19,PDX-1,Nestin,Ngn3 in different donor islet purity in rats

Objective: To investigate if there are the CK-19, PDX-1, Nestin, Ngn3 positive cells in the donor islets of different purity in rats. Methods: Thirty male adult SD rats were randomly divided into 3 groups. Islets were isolated using digestion by ductal injection of collagenase. Group Ⅰ (n=10): Separating cell preparations were not purified, Group Ⅱ(n=10): Islet sediment was purified with 25% Ficoll400 ,Group Ⅲ (n=10): Islet sediment was purified with 25% and 11% Ficoll-400. The levels of protein of CK-19, PDX-1, Nestin and Ngn3 were detected by immunohistochemistry and the mRNA of CK-19, PDX-1, Nestin, Ngn3 was amplified by RT-PCR. Results: After two different purification methods applied, three islet preparations of different purities were obtained. The difference of islet purity was significant among various groups (P＜0.05). Compared with group Ⅱ and group Ⅲ,the protein and mRNA of CK-19, PDX-1, Nestin,Ngn3 were both higher in group Ⅰ; group Ⅲ was poorly expressed. Conclusions: The three different islet purity donor islet have different CK-19, PDX-1, Nestin, Ngn3 positive cells within them, indicating that there are some islet stem cells in the purified donor islet.     

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.