蜂毒素诱导人T淋巴细胞白血病细胞株6T-CEM的凋亡作用

目的：探讨蜂毒素诱导人T淋巴细胞白血病细胞株6T－CEM的凋亡作用。方法：利用DNA断裂点标记法（TUNEL）、DNA凝胶电泳、活细胞拒染以及光镜方法研究6T－CEM细胞的凋亡。结果：5μg/ml蜂毒素作用4h及4μg/ml蜂毒素作用24h诱导6T－CEM出现明显的凋亡特征。结论：蜂毒素在杀伤6T－CEM的同时能明显诱导细胞凋亡。     

蜂毒素对小鼠肝癌H22细胞增殖的影响

目的 观察蜂毒素对小鼠肝癌H22细胞增殖的影响，探讨其抗肿瘤的可能作用环节。方法 以MTT法测定蜂毒素体外对小鼠肝癌H22细胞增殖的影响，运用流式细胞术分析增殖细胞核抗原(PCNA)的表达，并观察iv蜂毒素对荷瘤小鼠的抑瘤作用。结果蜂毒素对H22细胞的抑制作用随药物浓度增加而增强；蜂毒素作用于H22细胞后，细胞PCNA平均荧光强度低于对照组；iv蜂毒素对小鼠皮下H22肝癌细胞具有明显的抑制作用，抑瘤作用随浓度增加而增强。结论蜂毒素在体内外对小鼠肝癌H22细胞增殖均有明显的抑制作用，下调细胞PCNA表达可能是其作用环节之一。     

蜂毒素体外抑瘤作用的实验研究

目的：研究蜂毒素对建系肿瘤细胞体外生长的抑制作用。方法：通过凝胶色谱法从蜜蜂毒中纯化得高纯度蜂毒素,分别选取SMMC－7721、BEL－7402和Hep-3B三种肿瘤细胞系,以四甲基偶氮唑盐（MTT）比色法观察蜂毒素对3种肿瘤细胞系的生物抑制作用,以丝裂霉素、长春新碱、华蟾素为对照;并考察了蜂毒素对SMMC－7721细胞系的生长抑制作用的时效关系。结果：蜂毒素的抑瘤作用与剂量呈正相关,抑制率优于对照组药物,蜂毒素对SMMC－7721细胞系各时间点的抑瘤率无显性差异。结论：蜂毒素的体外抑瘤作用明显,而且作用发生迅速。     

蜂毒素对肝癌细胞磷脂酶A_2的影响

目的观察蜂毒素诱导细胞凋亡及对胞质型细胞磷脂酶A2（cPLA2）的影响。方法肝癌细胞BEL-7402体外培养,采用MTT法了解蜂毒素对肝癌细胞增殖的影响,用流式细胞术测定细胞凋亡,采用RT-PCR检测cPLA2的表达。结果蜂毒素在体外能够抑制肝癌细胞的增殖活性,并有诱导细胞凋亡的作用,RT-PCR检测显示,蜂毒素mRNA水平均具有激活cPLA2的作用。结论蜂毒素具有诱导肝癌凋亡及激活cPLA2的生物活性。     

蜂毒素抗肿瘤作用的研究进展

蜂毒素是蜂毒的主要组成部分和药理活性成分,具有抗炎镇痛、抑制血小板聚集和抗肿瘤等药理作用。近年来蜂毒素在抗肿瘤作用方面受到人们的关注,它抗肿瘤的作用是多靶点作用于肿瘤细胞。随着蜂毒素基因工程研究的深入,在未来其可能成为一种理想的分子靶向治疗药物。现将蜂毒素通过直接杀伤、免疫调节和诱导细胞凋亡产生抗肿瘤的作用以及在基因工程的研究进展进行综述。     

蜂毒素对肝癌细胞系BEL-7402细胞凋亡的影响

目的 :了解蜂毒素诱导肝癌细胞凋亡的作用。方法 :肝癌细胞BEL 74 0 2经不同浓度的蜂毒素处理后 ,采用台盼蓝排染法测定细胞增殖的抑制率 ,流式细胞仪检测细胞周期、细胞凋亡及Fas蛋白的表达。结果 :16 μg/ml蜂毒素作用肝癌细胞系BEL 74 0 2 ,12h抑制率为 (78.13±6 .15 ) % ,2 4h抑制率为 10 0 % ;4 ,8μg/ml蜂毒素对细胞的生长也有抑制作用 ,并且可诱导细胞凋亡的产生 ,能够增加细胞Fas蛋白的表达。结论 :蜂毒素高剂量有杀伤肿瘤细胞作用 ,低剂量可诱导细胞凋亡     

蜂毒素脂质体质量评价方法的研究

目的考察蜂毒素脂质体包封率的测定方法和游离药物的含量测定方法,对蜂毒素脂质体进行质量评价.方法对于游离蜂毒素的含量测定,比较了单波长考马斯亮蓝法、双波长考马斯亮蓝法、福林-酚法、二喹啉甲酸法及高效液相色谱法等5种含量测定方法.对于蜂毒素脂质体包封率测定,筛选了透析法及超滤-离心法.结果在吸收度及线性均良好的情况下,双波长考马斯亮蓝法可用于测定蜂毒素脂质体包封率时游离蜂毒素的含量,检测范围为0.5～25.0μg/mL,范围内线性良好,相关系数为0.9996.脂质体包封率测定采用超滤离心法,游离药物的平均回收率在95.75%～98.30%之间,脂质体不能透过截留相对分子质量为105的超滤膜.采用超滤离心法结合双波长考马斯亮蓝法测定3批蜂毒素脂质体的包封率为(91.45±0.83)%,RSD小于1%.结论该方法可用于蜂毒素脂质体的质量评价.     

蜂毒素微球经动脉介入治疗大鼠肝癌的实验研究

目的:观察蜂毒素微球(M-MS)经动脉介入对大鼠肝癌的治疗作用.方法:采用改良的复乳-液中干燥法制备蜂毒素-聚乳酸/羟乙酸微球,建立大鼠移植性肝癌模型并随机分为四组,分别经肝动脉灌注生理盐水(NS,1.5ml/kg)、蜂毒素(Melittin,0.35mg/kg)、空白微球(B-MS,10mg/kg)和蜂毒素-聚乳酸/羟乙酸微球(10mg/kg).比较治疗后各组大鼠的肿瘤生长情况、肿瘤坏死程度和生存时间.结果:与生理盐水组比较,Melittin组、B-MS组肿瘤生长受到明显抑制(P<0.01),肿瘤坏死程度以轻中度为主,但两组动物生存时间均未能明显延长(P>0.05).M-MS组与NS组、Melittin组及B-MS组相比,肿瘤生长抑制显著(P<0.01),肿瘤坏死更广泛、更彻底,且经蜂毒素微球治疗的大鼠生存期显著延长(P<0.01).结论:蜂毒素以药物微球的剂型经肝动脉给药,抗肿瘤效果明显优于单纯的蜂毒素和空白微球.     

蜂毒素对胃癌细胞系SGC-7901细胞增殖抑制作用及机制

目的 研究蜂毒素影响人胃癌细胞SGC-7901增殖及凋亡的机制.方法 使用不同浓度(1、2、4、8、16、32μg/ml)蜂毒素处理SGC-7901细胞不同时间(12、24、36、48、72 h)后,采用MTT法测定肿瘤细胞生长抑制率;透射电镜观察细胞超微结构的改变;琼脂糖凝胶电泳观察凋亡细胞特征性DNA条带;流式细胞仪法检测细胞凋亡和细胞周期;免疫组化观察Bcl-2基因和Bax基因表达情况;RT-PCR检测Bcl-2、Bax、p53 mRNA的表达.结果 蜂毒素对胃癌SGC-7901细胞的生长抑制作用随着其作用时间的延长和浓度的增加而明显增强,作用48 h后,其IC50为2.43 μg/ml;透射电镜现察显示蜂毒素组细胞呈凋亡表现,核固缩、碎裂,染色质浓缩,边集;蜂毒素(4、8μg/ml)组培养48 h后DNA琼脂糖凝胶电泳可见典型的梯状条带,而对照组细胞DNA未见梯状条带;流式细胞DNA直方图上出现典型的亚二倍体"凋亡峰",2、4、8μg/ml浓度蜂毒素作用人胃癌细胞后的细胞凋亡率分别为(5.69±0.74)%、(10.58±1.32)%、(29.57±1.58)%.Bax、p53基因mRNA和蛋白表达降低、Bcl-2 mRNA和蛋白表达升高,并随蜂毒素浓度增加而加强.结论 蜂毒素能诱导人胃SGC-7901细胞凋亡和抑制增殖,且有一定的量效关系,其作用机制可能与调控Bcl-2、Bax、p53基因表达有关.     

昆布多糖分离纯化及其抗肿瘤活性的研究

目的 纯化昆布多糖,并筛选其抗肿瘤活性。方法 DEAE-52纤维素及Sephadex G-200柱色谱分离纯化得到7种不同的昆布多糖组分,经抗肿瘤活性筛选出活性较好的昆布多糖Ⅱ,再经Sephadex G-200柱色谱及高效液相凝胶渗透色谱鉴定质量分数,并进行抗肿瘤活性筛选。结果 Sephadex G-200柱色谱及高效液相凝胶渗透色谱鉴定昆布多糖Ⅱ-B为单一成分,昆布多糖Ⅱ对人胃癌SGC-7901、肝癌HepG-2的IC₅₀分别为649.8、592.2 μg/mL。结论 昆布多糖Ⅱ-B具有明显的抗肿瘤活性。     

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.