重组人内皮抑素对小鼠肺腺癌肿瘤血管生成及肺转移的抑制作用

目的观察酵母表达重组人内皮抑素(recombinant human endostatin, rhES)对小鼠肺腺癌LA795原位肿瘤微血管生成及肺转移的抑制作用。方法对含有人内皮抑素基因的重组酵母菌株进行诱导表达及纯化rhES;将接种LA795小鼠肺腺癌细胞的T739小鼠随机分成两组,每组各10只,于接种后第6日起给予rhES和磷酸缓冲盐液(PBS)皮下注射,每日1次,连续14 d;观察两组小鼠原位肿瘤微血管生成情况及肺部肿瘤转移情况。结果经甲醇诱导酵母转化子表达rhES,并用肝素亲和层析的方法获得纯化的rhES;治疗结束后用免疫组化方法观察两组小鼠原位肿瘤微血管密度发现rhES治疗组肿瘤微血管密度明显小于PBS对照组(P<0.01);观察两组小鼠肺部发现rhES治疗组小鼠肺部未见有明显肿瘤转移病灶,而PBS对照组小鼠肺部可见大量散在肿瘤转移病灶;两组小鼠肺湿重比较具有显著性差异(P<0.01)。结论rhES具有良好的生物学活性,显著抑制了小鼠肺腺癌LA795肿瘤血管生成,并能有效抑制肿瘤的肺部转移。     

重组人内皮抑素对小鼠肺腺癌肿瘤血管生成及肺转移的抑制作用

目的：观察酵母表达重组人内皮抑素（recombinant human endostatin,rhES)对小鼠肺腺癌LA795原位肿瘤微血管生成及肺转移的抑制作用。方法：对含有人内皮抑素基因的重组酵母菌株进行诱导表达及纯化rhES;将接种LA795小鼠肺腺癌细胞的T739小鼠随机分成两组，每组各10只，于接种后第6日起始予rhES和磷酸缓冲盐液（PBS）皮下注射，每日1次，连续14d；观察两组小鼠原位肿瘤微血管生成情况及肺部肿瘤转移情况。结果：经甲醇诱导酵母转化子表达rhES，并用肝素亲和层析的方法获得纯化的rhES；治疗结束后用免疫组化方法观察两组小鼠原位肿瘤微血管密度发现rhES治疗组肿瘤微血管密度明显小于PBS对照组（P＜0．01）；观察两组小鼠肺部发现rhES治疗组小鼠肺部未见有明显肿瘤转移病灶，而PBS对照组小鼠肺部可见大量散在肿瘤转移病灶；两组小鼠肺湿重比较具有显著性差异（P＜0．01）。结论：rhES具有良好的生物学活性，显著抑制了小鼠肺腺癌LA795肿瘤血管生成，并能有效抑制肿瘤的肺部转移。     

重组人白介素-2抑制小鼠LA795肺腺癌高转移株肺转移的研究

目的探讨不同剂量的重组人白介素-2抑制LA795肺腺癌高转移株皮下肿瘤生长及肺转移的作用.方法皮下接种LA795肺腺癌高转移株于T739同系小鼠,腹腔注射不同剂量的重组人白介素-2,观察抑制肿瘤生长及肺转移的作用.结果rhIL-2 1.5×105U/d能明显地抑制肿瘤生长.肿瘤体积,瘤体湿重以及肺转移结节数较对照组小和少,抑制率分别达66.03%、76.03%、97.54%(P＜0.01).小剂量rhIL-2 2.6×103U/d,抑制肿瘤生长的抑制率仅为5.13%(P＞0.05),而对肺转移有68.75%的抑制率(P＜0.01).结论大剂量的rhIL-2仅能有效地抑制LA795肺腺癌的肺转移,且能较好地抑制肿瘤生长.小剂量的rhIL-2仅对LA795肺腺癌转移有一定的抑制作用.因此rhIL-2治疗肿瘤应使用大剂量.     

人内皮抑素在毕赤酵母中的表达、纯化及其对小鼠肺腺癌LA795细胞生长的抑制

目的通过基因重组技术获得能高效分泌表达人内皮抑素的毕赤酵母菌株;观察纯化的重组人内皮抑素(rhES)对小鼠肺腺癌LA795生长的抑制作用。方法 利用氯化锂转化法将人内皮抑素基因整合入毕赤酵母基因组,获得可分泌表达人内皮抑素(endostatin)的菌株。用肝素亲和层析的方法纯化目的蛋白。观察人内皮抑素对碱性纤维生长因子(bFGF)刺激的人血管内皮细胞系ECV－304细胞增殖的作用。将接种LA795肺腺癌细胞的T739小鼠随机分成2组,分别给予rhES和磷酸缓冲盐液(PBS)皮下注射,每日1次,连续14d。观察2组小鼠肿瘤生长情况。结果经筛选获得表达量较高的转化菌株,其表达的rhES能明显抑制bFGF刺激的人血符内皮细胞系ECV－304细胞的增殖,与对照组比较具有显苫差异(P＜0．001),动物实验表明其有效抑制小鼠肺腺癌LA795的生长(P＜0．001)。结论用毕亦酵母作为宿主分泌表达的rhES具有良好的生物学活性,能有效抑制小鼠肺腺癌LA795的生长。     

人内皮抑素在毕赤酵母中的表达、纯化及其对小鼠肺腺癌LA795细胞生长的抑制

目的：通过基因重组技术获得能高效分泌表达人内皮抑素的为酵母菌株；观察纯化的重组人内皮抑素（rhES)对小鼠肺腺癌LA795生长的抑制作用，方法：利用氯化锂转化法将人内皮抑素基因整合入毕赤酵母基因组，获得可分泌表达人内皮抑素（endostatin)的菌株，用肝素亲和层析的方法纯化目的蛋白。观察人内皮抑素对碱性纤维生长因子（bFGF)刺激的人血管内皮细胞系ECV－304细胞增殖的作用。将接种LA795肺腺癌细胞的T739小鼠随机分成2组，分别给予rhES和磷酸缓冲盐液（PBS）皮下注射，每日1次，连续14d，观察2组小鼠肿瘤生长情况，结果：经筛选获得表达量较高的转化菌株，其表达的rhES能明显抑制bFGF刺激的人血管内皮细胞系ECV－304细胞的增殖，与对照组比较具有显著差异（P＜0．001），动物实验表明其有效抑制小鼠肺腺癌LA795的生长（P＜0．001），结论：用毕赤酵母作为宿主分泌表达的rhES具有良好的生长学活性，能有效抑制小鼠肺腺癌LA795的生长。     

HSV-TK/ACV治疗小鼠肺腺癌LA795及其与机体免疫系统的关系

目的 :探讨HSV -TK/ACV(GCV)系统对小鼠肺腺癌细胞LA795治疗作用及其与机体免疫系统的关系。方法 :用重组逆转录病毒载体上清感染体外培养的小鼠肺腺癌细胞LA795 ,然后用新霉素类似物G41 8进行筛选 ,得到转染HSV -TK基因的LAtk细胞 ,分别将LA795细胞和LAtk细胞接种于小鼠皮下 ,观察ACV治疗后肿瘤生长情况、抗免疫功能以及对动物生存期的影响。结果 :体外转染HSV -TK基因的LAtk细胞获得了对ACV的敏感性 ,接种LAtk细胞的治疗组动物在ACV治疗后出现了肿瘤体积缩小 ,而对照组接种LA795细胞的动物在ACV治疗后肿瘤体积逐渐增大 ,两者具有显著差异 (P<0 .0 1 )。治疗组动物生存期为 5 1 .8d ,对照组动物生存期平均为 1 5 .9d ,两者具有显著差异 (P <0 .0 1 )。光镜下观察治疗组肿瘤组织及血管周围有大量的淋巴细胞浸润 ,计数 75个高倍视野中的淋巴细胞为 1 1 6.0 3± 5 2 .95 ,而对照组为 1 0 .41± 5 .5 2 ,二者具有显著差异 (P <0 .0 1 )。超微结构观察显示淋巴细胞群攻击癌细胞现象 ,癌细胞出现凋亡征象。结论 :①HSV -TK/ACV系统可以显著杀伤小鼠肺腺癌细胞LA795 ,使肿瘤消退 ,动物生存期延长 ,提示该系统有良好的治疗效果和应用前景。②HSV -TK/ACV系统治疗肿瘤除了其直接杀伤作用外 ,尚有机体免疫系统的     

槲皮素联合顺铂对肺腺癌小鼠移植瘤及NF-κB和HIF-1a表达的影响

目的 观察槲皮素联合顺铂对肺腺癌LA795细胞的T739J、鼠移植瘤内核因子-κB（nuclear factor-kappaB NF-κB）和缺氧诱导因子（hypoxia inducible factor 1a HIF-1a）表达的影响,并探讨它们抑制肿瘤生长和转移的作用机制.方法 复制肺腺癌LA795细胞的T739小鼠移植瘤模型,将32只接种LA795肺腺癌细胞T739小鼠随机分成4组：A对照组、B顺铂组（DDP）、C槲皮素组、D槲皮素＋顺铂组.实验3周后,剥离皮下肿瘤和取出双肺,计算各组抑瘤率和肺转移发生率、小鼠肺表面转移结节数及肺表面结节转移抑制率.免疫组化和图像分析系统检测皮下移植瘤中NF-κB和HIF-1a表达并定量分析.结果 顺铂组、槲皮素组、联合组与对照组相比肿瘤抑制率升高,槲皮素组及联合组肺表面转移结节数明显下降,各用药组皮下肿瘤内NF-κB和HIF-1a表达与对照组相比明显下降.联合用药组则显著抑制肿瘤的生长和肺表面转移结节数.结论 槲皮素和顺铂对LA795肺腺癌移植瘤的生长和肺结节转移具有协同抑制作用,其机制与其抑制肿瘤内NF-κB和HIF-1a表达相关.     

人纤溶酶原K5体内抑制Lewis肺癌肿瘤生长与转移

 【目的】 通过体内实验探讨人纤溶酶原Kringle 5(K5)对小鼠Lewis肺癌移植瘤生长与转移的抑制作用?【方法】 采用腋下接种肿瘤细胞的方法建立Lewis肺癌细胞皮下种植瘤小鼠模型,分为PBS对照组和K5治疗组,观察各组肿瘤生长情况,测量肿瘤大小,制备小鼠体质量-时间曲线和肿瘤体积-时间曲线;采用皮下种植瘤剔除术建立Lewis肺癌自发性肺转移模型,术后分为PBS对照组和K5治疗组,观察各组小鼠肺组织转移瘤数量,取肺组织进行病理学分析?【结果】 在皮下种植瘤模型中,与对照组相比,K5治疗组小鼠肿瘤体积-时间曲线变化平缓,肿块增长缓慢,肿瘤质量明显降低[分别为(4.57 ± 0.79) g和 (1.15 ± 0.31) g,P=0.006];在Lewis肺癌转移瘤模型中,K5治疗组小鼠肺表面转移瘤结节数[分别为(15.75 ± 9.79) 个和 (6.60 ± 3.39) 个,P=0.029]以及肺湿质量明显少于对照组,高倍镜下治疗组肺微转移灶数目亦较少?【结论】 人纤溶酶原K5能显著抑制小鼠Lewis肺癌移植瘤的生长,并能明显抑制Lewis肺癌细胞转移?     

苏拉明对肺腺癌小鼠移植瘤的抑制作用及碱性成纤维细胞生长因子表达的影响

目的研究苏拉明联合顺铂对肺腺癌LA795细胞T739小鼠移植瘤的抑制作用和移植瘤内bFGF表达的影响。方法复制小鼠移植瘤模型，将32只接种高转移性LA795肺腺癌细胞的T739小鼠随机分成4组：对照组、顺铂组、苏拉明组和顺铂＋苏拉明组。用药干预16d，用药中观察肿瘤生长情况，于接种后24d处死各组小鼠，取出双肺和剥离皮下肿瘤，计算出肺转移发生率，计数各组小鼠肺表面转移结节数及算出肺表面结节转移抑制率。移植瘤标本行病理观察，免疫组化和图像分析系统定量检测肿瘤组织微血管密度（MVD）及碱性成纤维细胞生长因子（bFGF）表达。结果各用药组肿瘤的生长受到抑制，瘤重明显低于对照组，其抑瘤率分别为23．03％、34．40％和56．30％。苏拉明组与对照组比肺表面转移结节数、肺转移发生率下降，肺表面结节转移抑制率上升，联合组更为明显。病理观察见各用药组肿瘤细胞出现坏死、苏拉明组及联合组肿瘤间质中血管数减少。苏拉明组，顺铂＋苏拉明组MVD、bFGF的表达都比对照组减少，差异有显著性（P〈0．01）；两者联合有协同下调MVD、bFGF表达的作用，而单用顺铂组与对照组比差异无显著性。结论苏拉明可明显抑制肺腺癌细胞在小鼠体内的生长和转移，与顺铂有协同作用，其机制可能与下调bFGF表达，抑制其微血管形成有关。     

苹果酸舒尼替尼对LA795肺腺癌小鼠移植瘤生长凋亡的影响

目的:探讨苹果酸舒尼替尼(SU11248)对LA795肺腺癌小鼠移植瘤生长凋亡的影响.方法:复制肺腺癌LA795细胞的T739小鼠移植瘤模型,将50只接种高转移性LA795肺腺癌细胞T739雄性小鼠随机分成对照组、阴性治疗组、低剂量SU11248组、中剂量SU11248组、高剂量SU11248组.接种4d后开始用SU11248干预,每5d用游标卡尺测量皮下移植瘤最大长径(a)和横径(b),计算肿瘤体积,平均瘤体积=axb2/2,计算肿瘤乍长抑制率.接种24d后脱颈臼处死全部小鼠,解剖剥离皮下移植瘤固定,采用免疫组化和TUNEL法检测增殖细胞核抗原(PCNA)的表达和肿瘤细胞凋亡,计数增殖指数和凋亡率.结果:各剂量组移植瘤生长明显慢于对照组与阴性对照组,以岛剂量组生长最慢;生长抑制率明显高于对照组与阴性对照组,以高剂量组生长最高,差异有显著性.各剂量组增殖指数低于对照组和阴性对照组,低剂量组差异无显著性,中剂量组和高剂量组差异有显著性;各剂量组间增殖指数与剂量呈反向变化,剂最越大,SPF越低,差异有显著性.各剂量组肿瘤细胞凋亡率高于对照组和阴性对照组,低剂量组差异无显著性,中剂量组和高剂量组差异有显著性;各剂量组间肿瘤细胞凋亡率与剂量呈同向变化,剂量越大,肿瘤细胞AR越大,差异有显著性.结论:SU11248可能具有抑制肺腺癌肿瘤细胞生长和促进肿瘤细胞的凋亡作用.     

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…     

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.     

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.     

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.