蟾蜍毒素粗提物对白血病K562细胞的杀伤作用

目的:观察蟾蜍毒素提取物对白血病K562细胞杀伤作用及对细胞周期的影响。方法:用无水乙醇、二甲基亚砜(DMSO)、PBS缓冲液浸溶中华大蟾蜍的耳后腺及皮下腺分泌物,采用台盼蓝拒染法检测细胞增殖抑制作用,流式细胞仪检测对细胞周期的影响。结果:3种浸液均能抑制K562细胞的增殖,其抑制强度依次为乙醇浸液>DMSO浸液>PBS浸液。5 ng/ml的乙醇浸液、50 ng/ml的DMSO浸液、500 ng/ml的PBS浸液均能使K562细胞发生G2/M期阻滞。结论:蟾蜍毒素粗提物对白血病K562细胞增殖具有明显的抑制作用,并伴有G2/M期阻滞。     

蟾蜍灵对白血病K562细胞生长抑制机制

目的探讨中药蟾酥有效成分蟾蜍灵对人白血病细胞系K562细胞增殖和凋亡的影响。方法倒置光显微镜、荧光显微镜、透射电镜观察细胞形态结构改变;MTT实验测定K562细胞对蟾蜍灵的敏感性;琼脂糖凝胶电泳分析细胞凋亡的DNA断裂情况;流式细胞术分析蟾蜍灵对细胞周期的影响。结果在光镜、荧光显微镜和电子显微镜下,蟾蜍灵作用K562细胞的形态和结构发生明显改变;蟾蜍灵对K562细胞的生长具有明显的抑制作用,与对照组细胞进行比较,差异具有显著性(P<0.05);MTT实验显示,蟾蜍灵对K562细胞的IC50值为0.013μmol/L,统计学分析证明,差异具有显著性(P<0.01);蟾蜍灵可明显诱导K562细胞调亡;经琼脂糖电泳,蟾蜍灵作用细胞可见到DNA梯形条带;蟾蜍灵可阻滞K562细胞于G2/M期。结论①蟾蜍灵对K562细胞的增殖抑制作用可能是因为它的凋亡诱导作用;②蟾蜍灵诱导K562细胞凋亡可能归功于G2/M期阻滞。     

细胞外信号调解激酶对蟾蜍灵诱导白血病细胞凋亡影响的研究

目的:探讨细胞外信号调解激酶(ERK)对蟾蜍灵诱导白血病细胞凋亡的影响.方法:形态学观察和流式细胞仪检测细胞凋亡.结果:0.5μmol/L蟾蜍灵作用K562细胞24h诱导典型的细胞凋亡,预先用ERK抑制剂PD98059处理细胞1 h,明显增加蟾蜍灵诱导的细胞凋亡率(P＜0.05);而用佛波酯预先处理后,明显拮抗蟾蜍灵的作用(P＜0.05).结论:ERK负向调节蟾蜍灵诱导的K562细胞凋亡过程.     

Zeylenone对急性淋巴细胞白血病细胞增殖及凋亡的影响

目的探讨Zeylenone体外抗急性淋巴细胞白血病(Acute Lymphoblastic Leukemia,ALL)效应及作用的可能机制。方法应用MTT法比较Zeylenone对肿瘤细胞、正常细胞增殖的影响;AO/EB染色观察其对ALL细胞(Reh、RS4;11)凋亡形态学的改变;流式细胞仪检测药物对细胞凋亡及细胞周期的影响。结果 Zeylenone对多种细胞呈现增殖抑制作用,且对ALL细胞株呈现更高的敏感性,而对外周血单个核细胞(Peripheral blood mononuclear cell,PBMC)抑制作用较小,抑制Reh、RS4;11细胞增殖呈时间依赖性和剂量依赖性;Zeylenone能够诱导ALL细胞凋亡,阻滞细胞周期于G0/G1期。结论 Zeylenone体外具有抗ALL细胞增殖的作用,其作用与诱导细胞凋亡、阻滞细胞周期相关。     

蟾蜍灵联合阿霉素对人肺癌A549细胞体外增殖和凋亡的影响

目的：探讨天然药物蟾蜍灵、阿霉素以及两者联用对非小细胞肺癌A549细胞增殖、凋亡和细胞周期的影 响。方法：采用四甲基偶氮唑盐(methyl thiazolyl tetrazolium,MTT )法观察蟾蜍灵、阿霉素以及两者联用对A549细胞增 殖的影响;采用赫斯特(Hoechst 33342)染色法观察细胞核形态变化;采用流式细胞仪检测蟾蜍灵、阿霉素以及两者联 用对A549细胞凋亡和细胞周期的影响;采用Western印迹检测凋亡蛋白的表达。结果：蟾蜍灵和阿霉素单独用药均能 抑制A549细胞的增殖,且呈剂量与时间依赖关系;与蟾蜍灵和阿霉素单独用药相比,1,20,100 nmol/L蟾蜍灵分别 与1.0 μg/mL阿霉素联合作用A549细胞24,48,72 h的抑制率显著升高(均P<0.05)。蟾蜍灵和阿霉素均可在一定程度上 诱导细胞凋亡,两药联用后诱导细胞凋亡作用显著增强。蟾蜍灵和阿霉素联用可将细胞周期阻滞在S期,并上调凋亡 蛋白caspase-3的表达。结论：蟾蜍灵联合阿霉素可显著抑制A549细胞的增殖,其抗肿瘤的机制可能与诱导细胞凋亡、 细胞周期S期阻滞及凋亡蛋白caspase-3的上调有关。     

蟾蜍毒素粗提物诱导卵巢癌OVCAR-3细胞M期阻滞

目的:探讨蟾蜍毒素粗提物对卵巢癌细胞的抑制作用及对细胞周期的影响.方法:采用台盼蓝拒染色法,集落形成实验测定细胞增殖能力,采用流式细胞仪解析细胞周期.结果:蟾蜍毒素粗提物作用细胞24,48,72h,半数抑制浓度分别为0.62,0.24,0.09μg/ml.细胞经0.5,5μg/ml蟾蜍毒素粗提物处理1,6 h,细胞生存率均＞95%,集落抑制率分别为(43.1±6.4)%,(78.2±4.9)%,(89.8±2.2)%,(95.0±2.6)%,与对照组相比有显著差异(P＜0.05).经蟾蜍毒素粗提物作用后,细胞阻滞于M期.结论:蟾蜍毒素粗提物能够抑制OVCAR-3细胞增殖,同时诱导M期阻滞.     

蟾蜍灵对人胆管癌细胞QBC939增殖及cyclin E和P27蛋白表达影响的研究

目的 已有诸多研究显示中药蟾蜍灵具有明显抑制肿瘤增殖的作用,观察蟾蜍灵对人胆管癌细胞QBC939的cyclin E和P27表达的影响,探讨其调控胆管癌细胞增殖的途径和机制. 方法 MTT比色法观察不同浓度蟾蜍灵(0.1、1、10μmol/L)对人胆管癌细胞QBC939增殖的影响;乳酸脱氢酶(lactate dehydrogenase,LDH)实验检测蟾蜍灵毒性;流式细胞术检测人胆管癌细胞QBC939细胞周期的变化;Western blot法测定cyclin E、P27蛋白水平变化. 结果 MTT比色法结果 表明蟾蜍灵对人胆管癌细胞QBC939生长具有较强的抑制作用,并在一定范围内具有时间和浓度依赖性,流式细胞仪检测细胞周期阻滞在G0/G1期,具有良好的量效关系.Western blot 测定cyclin E蛋白表达量下降,P27蛋白表达量升高. 结论 蟾蜍灵可能是通过阻滞细胞周期,减少cyclinE蛋白表达,增加P27蛋白表达,来达到抗肿瘤作用.     

蟾蜍灵诱导人急性淋巴白血病细胞凋亡的实验研究

目的研究蟾蜍灵对人急性淋巴白血病(CEM)细胞的作用。方法台盼蓝拒染法观察蟾蜍灵对细胞增殖的抑制作用;流式细胞术检测蟾蜍灵作用后细胞凋亡情况。结果10~80nmol/L蟾蜍灵于24h开始明显抑制CEM细胞生长(P<0.01)。24,48和72h抑制细胞增殖50%的药物浓度分别为15.13,9.59和6.57nmol/L;20nmol/L,40nmol/L蟾蜍灵作用24h后出现典型的细胞凋亡形态学改变;20nmol/L蟾蜍灵处理12,24和48h凋亡细胞百分率分别为2.46%、17.92%和66.26%;40nmol/L蟾蜍灵处理12,24和48h凋亡细胞百分率分别为5.19%、32.71%和80%以上;凋亡细胞百分率呈剂量和时间依赖性。结论蟾蜍灵以时间、剂量依赖方式抑制CEM细胞生长、诱导凋亡。     

蟾蜍灵对结肠癌SW620细胞凋亡的影响

目的:研究蟾蜍灵诱导结肠癌细胞的凋亡作用.方法:采用不同浓度的蟾蜍灵处理结肠癌SW620细胞,采用四唑蓝比色法检测细胞生长,分别通过检测caspase-3活性和琼脂糖凝胶电泳了解细胞凋亡情况,以Fura-2荧光复合技术测结肠癌细胞内游离Ca2 浓度.结果:蟾蜍灵对结肠癌细胞增殖具有很强的抑制作用.蟾蜍灵能够诱导结肠癌细胞凋亡.在结肠癌细胞凋亡过程中,胞内游离Ca2 浓度明显升高,以凋亡早期更为明显.1 h时为(288.56±8.46)nmol/L,明显高于对照组(125.56±3.18)nmol/L(P＜0.01).结论:蟾蜍灵对结肠癌细胞生长具有很强的抑制作用,与诱导细胞凋亡有关.Ca2 在蟾蜍灵诱导结肠癌细胞凋亡过程中有一定的作用.     

Genistein对EJ细胞增殖抑制作用的研究

目的:观察酪氨酸蛋白激酶(TPK)抑制剂Genistein对膀胱癌EJ细胞增殖的抑制作用.方法:以不同浓度的Genistein作用EJ细胞,采用MTT法检测细胞的增殖程度;原位凋亡细胞检测技术和流式细胞仪检测Genistein对EJ细胞凋亡和细胞周期的影响.结果:Genistein引起EJ细胞增殖比明显下降,其程度随Genistein浓度增高而增强;Genistein促进EJ细胞的凋亡,使细胞阻滞于G2/M期.结论:Genistein对EJ细胞的增殖有抑制作用,可以诱导EJ细胞的凋亡.     

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…