多西紫杉醇节律化疗联合地塞米松抗小鼠肺癌血管生成的实验研究

目的探讨多西紫杉醇节律化疗及地塞米松对C57BL／6小鼠Lewis肺癌（LLC）肿瘤生长和血管生成的影响。方法C57BL／6小鼠皮下接种LLC细胞，随机分组后分别给予相应治疗。隔天测量小鼠体重及肿瘤体积。小鼠处死后称瘤重，应用免疫组化检测小鼠肿瘤组织中CD34和HIF-1α蛋白表达。结果对照组皮下瘤重明显大于节律组、地塞米松组和联合组。对照组微血管密度（MVD）明显高于三个实验组（P〈0．05），三个实验组HIF-1α蛋白表达较对照组显著下降（P〈0．05）。结论多西紫杉醇节律化疗和地塞米松可明显抑制LLC的生长及血管生成，其可能的机制之一是通过下调小鼠肿瘤组织中HIF—1α的表达而间接实现抗肿瘤血管生成作用。     

小剂量紫杉醇节律化疗影响Lewis肺癌细胞株增殖和肿瘤血管生成的研究

目的小剂量化疗药物节律化疗是一种新型抗肿瘤化疗途径,在给药方式、毒副反应、作用机制等方面皆有别于传统化疗。文中探讨了小剂量紫杉醇节律化疗对小鼠Lewis肺癌细胞株皮下移植瘤生长的抑制及对其肿瘤血管生成的影响。方法C57BL/6小鼠皮下接种(Lewis Lung Cancer,LLC)细胞,成瘤后随机分为对照组(等渗盐水0.2 ml,腹腔注射,每天1次);小剂量紫杉醇组(紫杉醇2 mg/kg,腹腔注射,每天1次);常规剂量紫杉醇组(紫杉醇20 mg/kg,腹腔注射,第1天)。每天测量小鼠肿瘤体积。在第14天、第28天2个时间点分别取小鼠肿瘤,测定组织Evans Blue(EB)渗透浓度及肿瘤坏死率,半定量RT-PCR法测定肿瘤组织血管内皮生长因子-A(vasculav endothelial growth factor-A,VEGF-A)、血栓反应素-1(thrombosp-odin-1,TSP-1)、G蛋白信号通路调节蛋白5(regulator of G-protein signaling5,Rgs 5)基因表达水平。结果与对照组相比,小剂量紫杉醇节律化疗能够明显抑制Lewis肺癌细胞株皮下移植瘤的生长(P<...     

抑癌方对小鼠肠癌移植瘤微血管生成及VEGF、HIF-a表达的影晌

目的：探讨抑癌方对小鼠结肠癌移植瘤微血管生成、血管内皮生长因子（vascular endothelial growthfactor,VEGF）及缺氧诱导因子-1α（hypoxia inducible factor-1 alpha,HIF-1α）影响。方法：用CT26结肠癌细胞建立小鼠结肠癌移植瘤模型,分阴性对照组、中药高、中、低剂量组及化疗药组5组,分别灌服生理盐水、中药及腹腔注射氟脲嘧啶（5-FU）。比较各组之间瘤重;采用免疫组化染色方法和显微图像分析技术检测不同浓度抑癌方对各组小鼠移植瘤微血管（MV）及VEGF、HIF-1a表达的影响。结果：与阴性对照组的瘤重相比较,抑癌方各组及5-FU组（阳性对照药,以下称化疗组）均有统计学差异（P〈0.05）;但中药各组瘤重均高于化疗组（P〈0.05）。免疫组化染色结果显示阴性对照组癌巢间MV、VEGF及HIF-1a表达高于中药组和化疗组（P〈0.05）。结论：抑癌方对小鼠移植瘤有一定抑制作用;能够减少肠癌移植瘤中血管形成及VEGF及HIF-1a的表达。     

清热消积方对荷瘤鼠肿瘤组织HIF-1α蛋白表达的影响

目的观察清热消积方对肿瘤组织缺氧诱导转录因子-1α（HIF-1α）蛋白表达的影响,并探讨该方抗肿瘤血管生成的作用机制。方法将60只接种Lewis肺癌细胞株的C57BL/6J近交系小鼠随机分成空白对照组（NS组）、阳性对照组（CTX组）、清热消积方高、中、低剂量组（生药量1.12 g/m L、0.56 g/m L、0.28 g/m L）,每组12只。空白对照组和清热消积方高、中、低3个剂量组按0.2 m L/10 g分别喂饲生理盐水和中药水煎液,阳性对照组腹腔注射环磷酰胺。用免疫组织化学法和免疫印迹法检测荷瘤小鼠肿瘤组织HIF-1α蛋白表达。结果清热消积方高、中、低剂量组、CTX组肿瘤组织HIF-1α蛋白的平均光密度（MOD）值均低于NS组（P〈0.05）,清热消积方高、低剂量组、CTX组肿瘤组织HIF-1α蛋白的阳性细胞所占值（A%）均低于NS组（P〈0.05）,清热消积方各剂量组间MOD值与A%均无差异（P〉0.05）。结论清热消积方能下调荷瘤鼠肿瘤组织HIF-1α蛋白的表达,可能是其抗肿瘤血管生成的作用机制之一。     

疟原虫遗传减毒子孢子诱导抗肺癌免疫的初步研究

目的：初步探讨疟原虫遗传减毒子孢子能否诱导抗肺癌免疫作用,为肺癌疫苗的研究提供新的思路。方法实验分为实验组与对照组,实验组尾静脉注射遗传减毒子孢子进行免疫C57BL／6J小鼠,对照组注射磷酸缓冲盐溶液（PBS）;14 d后用Lewis肺癌细胞（LLC）皮下接种,待肿瘤长出后用游标卡尺测量肿瘤大小;肿瘤组织免疫组化对比肿瘤增殖、凋亡、血管生成情况。结果两组小鼠的肿瘤生长有差异,疟原虫遗传减毒子孢子能抑制肿瘤的增殖、血管生成、促进凋亡。结论遗传减毒子孢子可能是一种新的治疗策略或能成为一种有效的载体介导肺癌的免疫治疗。     

骨桥蛋白在Lewis肺癌生长转移过程中的表达

目的建立能够模拟肿瘤生长、侵袭转移动态全过程的动物模型,利用该模型探讨骨桥蛋白在肿瘤生长转移过程中的作用。方法Lewis肺癌（LLC）在C57BL/6小鼠体内连续传代,观察第2代（早期组）、第8代（中期组）和第15代（晚期组）荷瘤小鼠肿瘤生长和肺转移的情况,采用免疫组化法检测各组荷瘤鼠肿瘤组织中骨桥蛋白（OPN）和微血管密度（MVD）的表达。结果①随传代次数的增加肿瘤生长速度加快、侵袭力增强,肺转移率升高。②OPN和MVD在早、中、晚三组小鼠瘤组织中的表达均呈升高趋势（P〈0．05）,且二者的表达呈正相关。结论OPN可能通过促进肿瘤血管生成的途径加速肿瘤的生长转移。     

Rh-Endostatin作用肺癌血管正常化时相与CA9表达的关系初探

目的初步探索重组人血管内皮抑素（rh-Endostatin,rh-ES）作用于肺癌的血管正常化时相与CA9的关系,以及CA9在肺癌中的表达水平。方法收集对数生长期的Lewis细胞,制成1×106 mL-1的单细胞悬液,注射入40只C57/BL6小鼠（0.2 mL/只）,建立Lewis肺癌皮下移植瘤（LLC）模型,然后随机分成对照组和rh-ES组,各20只。rh-ES组小鼠腹腔注射rh-ES 5 mg/（kg·d）,9 d,1次/d。对照组小鼠同时点腹腔注射生理盐水（NS） 0.2 mL/次。于治疗第2、4、6、9天,每组各处死5只小鼠。免疫组化检测肿瘤组织和癌旁组织中CA9表达,Real-time PCR及ELISA技术分别检测两组不同时间点肿瘤组织中CA9表达。结果C57/BL6小鼠成瘤率为100%。同时,对照组不同时间点CA9在肿瘤组织中表达均高于癌旁组织（P<0.05）。Real-time PCR及ELISA发现在LLC移植瘤模型中CA9基因和蛋白表达在rh-ES组给药后第4天和第6天（血管正常化时相）降低,与同组第2天、第9天比较,差异有统计学意义（P<0.05）,与对照组第4天和第6天比较,差异有统计学意义（P<0.05）。结论CA9在肿瘤组织中高表达。rh-ES 可于血管正常化时间段内降低CA9表达,逆转Lewis肺癌乏氧。     

急性炎症对黑色素瘤血管生成的影响作用研究

目的：研究急性炎症对黑色素瘤血管生成的影响。方法：C57BL小鼠,构建B16F10小鼠黑色素瘤动物模型,待肿瘤生长至0．8cm×0．8cm×0．8cm时构建伤口模型,分为单纯肿瘤组、同侧伤口＋肿瘤组（局部组）和对侧伤口＋肿瘤组（全身组）,比较肿瘤微血管密度（MVD）,免疫组织化学染色检测肿瘤组织VEGF的表达。结果：局部组和全身组肿瘤微血管密度明显低于对照组,结果具有统计学意义（P〈0．05）;VEGF阳性表达率在局部组和全身组均低于对照组（P〈0．05）。结论：急性炎症可影响肿瘤组织VEGF的表达,明显抑制黑色素瘤血管生成。     

重组腺病毒rAdCDglyES体内抑瘤作用的研究

目的：探讨重组腺病毒rAdCDglyES对肺癌的体内抑、杀瘤作用。方法：建立近交纯系C57BL小鼠Lewis肺癌模型：于小鼠荷瘤部位注射定量的重组腺病毒rAdCDglyES并给予5-氟胞嘧啶。通过观测小鼠瘤体大小、重量，中位生存期．及组织病理学改变判定疗效。结果：对荷瘤小鼠连续10d的治疗观测后发现，实验组与对照组之间平均瘤重有显著性差异（P〈0．05）；对荷瘤小鼠的中位生存期比较发现实验组较对照组天数有显著性差异（P〈0．05）；对实验组和对照组肿瘤进行HE染色后病理检测，镜下所见，含ES基因的实验组小鼠瘤组织血管数明显少于对照组，仅为对照组的53．85％（14／26）。结论：rAdCDglyES／5-FC对C57BL小鼠的Lewis肺癌有明显的抑杀瘤作用。     

消积抑癌外敷方对Lewis肺癌荷瘤小鼠抑瘤效果和肿瘤血管生成的影响

目的:探讨消积抑癌外敷方对Lewis肺癌荷瘤小鼠抑瘤效果、肿瘤血管生成、血管内皮生长因子(VEGF)蛋白及mRNA表达的影响。方法:将20只健康雌性C57BL/6小鼠随机分为荷瘤对照组和治疗组,每组各10只。采用动物移植肿瘤实验法制备Lewis肺癌荷瘤小鼠模型。对照组小鼠瘤体表面外敷面糊,治疗组小鼠瘤体表面外敷消积抑癌...     

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.     

Development on Adjustable Calibration Marker for Shock Wave Focus

Shock wave lithotripsy （SWL） is a treatment of choice for upper urinary stones. However, this procedure is inappropriate for obese patients because the focus is often unable to reach the target owing to the limited focal distance in shock wave source. Although treating such patients in a blast path may increase the application length of shock wave source, it＇s difficult to find this path on the lithotripter monitor. For this reason, we invented an adjustable calibration marker in order to set an effective focus in the shock wave hath.     

Study on the TCM Pathogenesis of Angiopathic Complications of Type II Diabetes

Excess production of reactive oxygen species(ROS)of mitochondrion mediated by hyperglycemia is the common pathogenesis of angiopathic complications of diabetes.TCM holds that the damp from the dysfunction of spleen.kidney and liver is the causative factor of complications of diabetes.This is similar to the mechanism of Ros resulting in angiopathic complications of diabetes.When the angiopathic complications of type II diabetes mellitus(T2DM)are difierentiated as caused by turbid damp in TCM can be explained as ROS.Since the obstruction of pathogenic damp in channels and collaterals is said to be the main pathogenesis,the treating principle should be dissolving the damp to remove the obstruction.     

Leptin, Ghrelin and TNF-α before and after Hypo-caloric Traditional Chinese Diet and Auricular Acupuncture

INTRODUCTION Obesity is a complex emergent problem, which can be possibly solved not only by the diet but also by the life style and promotion of a constant physical exercise. 1, 2 No doubt careful attentions must be given to the nutritional condition of obese people, the dietary habits, the somatic build (i.e. distribution of fat mass) and the organic functions linked to formation of the fat mass. All the parameters should be constantly monitored before, during and after a diet treatment. 3, 4, 5     

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.     

Relationship between Dysglycemia and Carotid Atherosclerosis in Tibetan Population

People with dysglycemia are at high risk for atherosclerotic diseases. This study aims at investigating the atherosclerotic vascular damage in dysglycemia and its metabolic origin in Tibetan population.     

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.