基因修饰的树突状细胞融合后的瘤苗抗肿瘤免疫应答的实验研究

目的观察粒细胞巨噬细胞集落刺激因子（ＧＭ－ＣＳＦ）基因修饰的树突状细胞（ＤＣ）与肿瘤细胞融合后，体内诱导的抗肿瘤免疫应答及对荷瘤小鼠的治疗效果。方法从Ｃ５７ＢＬ／６小鼠脾脏中分离ＤＣ，用重组腺病毒载体进行ＧＭ－ＣＳＦ基因修饰，再与Ｆ１０小鼠黑色素瘤细胞进行融合，通过抗Ｉａ抗体磁珠阳性选择和贴壁培养富集融合细胞。结果经灭活的、由ＧＭ－ＣＳＦ基因修饰的ＤＣ与Ｂ１６．Ｆ１０融合的ＦＤ－ＧＭ能在体内诱导出更强的细胞毒性Ｔ淋巴细胞（ＣＴＬ），抵抗野生型Ｂ１６．Ｆ１０细胞的再次攻击，使经治疗的肺转移荷瘤小鼠的存活期明显延长，肺转移结节显著减少。结论肿瘤细胞与ＧＭ－ＣＳＦ基因修饰的树突状细胞融合后进行体内免疫，能诱导出显著的抗肿瘤免疫反应，可望成为肿瘤基因治疗的新途径。     

银屑病患者单核细胞诱生的郎汉斯细胞特征分析

目的 从郎汉斯细胞（ＬＣ）的分化发育过程探讨其在银屑病患者体内异常的原因。方法 将外周血单核细胞经ＧＭ－ＣＳＦ＋ＴＧＦ－β１联合培养５ｄ,分别通过流式细胞仪、混合淋巴细胞反应分析其表型及其抗原提呈功能,并通过ＥＬＩＳＡ法检测其分泌功能。结果银悄病患者单核细胞经ＧＭ－ＣＳＦ＋ＩＬ－４＋ＴＧＦ－β１联合培养后能分化发育为具有ＬＣ相对特征性抗原标志ＣＤｌａ的细胞,其比例、表型特征、胞内合成及分泌ＩＬ－     

人树突状细胞体外提呈凋亡胆管癌细胞抗原的研究

目的：建立从人外周血诱导扩增树突状细胞（ＤＣ）及其从恨癌细胞提呈抗原的方法。方法：从正常人外周血分离获得单核细胞,加入５０ｎｇ／ｍｌ ｈＧＭ－ＣＳＦ,１０００ｎｇ／ｍｌ ｈＩＬ－４,隔天１次共４次,培养第３天,加入γ射线照射过和胆管癌细胞,再继续体外培养１周后,用树－突状细胞富集柱收集ＤＣ。结果：ＤＣ高表达共刺激分子Ｂ７和ＣＤ１ａ,表面具有典型不规则突起,ＤＣ捕捉凋亡小体、吞噬凋亡小体,负载抗原的     

何杰金病单克隆抗体免疫组化研究

应用标记Ｒ－Ｓ细胞、Ｂ淋巴细胞和Ｔ淋巴细胞的５种单克隆抗体ＬｅｕＭ_１、ＢｅｒＨ_２、ＬＣＡ、Ｌ_（２６）和ＵＣＨＬ_１对４３例何杰金病（ＨＤ）的石蜡标本进行了免疫组织化学染色，以Ｔ、Ｂ细胞淋巴瘤各１５例作对照研究。结果：非淋巴细胞为主型何杰金病（ｎｏｎＬＰＨＤ）的Ｒ－Ｓ细胞对ＬｅｕＭ_１的阳性率为６４．３％，对ＬＣＡ、Ｌ_（２６）和ＵＣＨＬ_１呈阴性反应；而非何杰金淋巴瘤（ＮＨＬ），ＬｅｕＭ_１仅偶在Ｔ细胞淋巴瘤中呈阳性（６．７％），ＬＣＡ、Ｌ_（２６）和ＵＣＨＬ_１标记ＮＨＬ、Ｂ－ＮＨＬ和Ｔ－ＮＨＬ阳性率分别是８３．３％、７３．３％和６６．７％。因此，在石蜡切片上联合应用ＬｅｕＭ１、ＬＣＡ、Ｌ_（２６）和ＵＣＨＬ_１对鉴别ＨＤ与ＮＨＬ有重要的参考价值。淋巴细胞为主型何杰金病（ＬＰＨＤ）的Ｒ－Ｓ细胞对ＬＣＡ和Ｌ_（２６）的阳性率为５３．３％和６０％，ｎｏｎＬＰＨＤ中Ｒ－Ｓ细胞对ＢｅｒＨ_２的阳性率为２１．４％。提示ＬＰＨＤ的Ｒ－Ｓ细胞来源于Ｂ淋巴细胞，ｎｏｎＬＰＨＤ的Ｒ－Ｓ细胞可能与活化的淋巴细胞有关。     

重组粒细胞-巨噬细胞集落刺激因子对鼠红白血病细胞诱导分化和凋亡的影响

重组粒细胞－巨噬细胞集落刺激因子对鼠红白血病细胞诱导分化和凋亡的影响赵勇曹雪涛为寻找新的诱导分化疗法，探讨诱导分化机制，我们以红白血病细胞（ＦＢＬ－３）为模型，采用流式细胞仪分析等技术，观察了粒细胞－巨噬细胞集落刺激因子（ｒｍＧＭ－ＣＳＦ）对小鼠ＦＢ...     

MBPP^89—101致小鼠实验性变太反应性脑脊髓炎和对M…

用ＭＢＰＰ＾８＾９＾－＾１＾０＾１加完全佐剂免疫ＳＪＬ／Ｊ小鼠，建立ＥＡＥ动物模型，取发病动物淋巴结作细胞培养，并用ＭＢＰＰ＾８＾９＾－＾１＾－＾１激活培养３周，其间２次经Ｆｉｃｏｌｌ－Ｈｙａｐａｑｕｅ分离纯化激活细胞并用Ｘ线照射的脾细胞作为抗原提呈细胞。应用＾３Ｈ－ＴｄＲ参入法检测细胞对抗原的特异性反应并用ＰＥ－抗－ＣＤ４荧光直接染色和ＦＡＣＳ分析细胞表型阳性％，证明建立的ＣＤ４＾＋Ｔ细胞株对Ｐ     

树突状细胞刺激γδT细胞扩增诱导干细胞移植时GVL研究

目的：研究γδＴ细胞的体外生存期,抗白血病活性及可能引起的移植物抗宿主反应（ＧＶＨＤ）,为自体及异体移植后输注γδＴ细胞诱导移植物抗白血病反应作前期基础研究。方法：对移植患者采集物用ＧＭ－ＣＳＦ＋ＩＬ－４进行培养,使其分化和扩增为树突状细胞（ＤＣ）;然后用ＤＣ和细胞因子ＩＬ－２刺激其ＣＤ４＾＋Ｔ细胞扩增后,协同ＤＣ共同刺激γδＴ细胞扩增,进而用ＭＴＴ比色法和ＣＦＵ－ＧＭ集落培养研究其功能。结果：γ     

人硫氧还蛋白及其变异体对TF—1和NFS60细胞的凋亡抑制和？…

目的：比较ｒｈＴＲＸ与ｒｈＴＲＸδ３对细胞因子依赖株ＴＦ－１细胞、ＮＦＳ６０细胞撤除细胞因子所诱导调亡的抑制及促细胞增殖作用。方法：在大肠杆菌中克隆并表达重组ｈＴＲＸ和ｈＴＲＸδ３，纯化ｒｈＴＲＸ和ｒｈＴＲＸδ３蛋白，ＦＡＣＳ检测凋亡细胞，ＭＴＴ法检测细胞增殖。结果：在依赖ＩＬ－３、ＧＭ－ＣＳＦ生长的ＴＦ－１细胞（人红白血病细胞）和依赖Ｇ－ＣＳＦ生长的ＮＦＳ６０细胞（小鼠白血病细胞）撤除细胞因子后     

小鼠骨髓和脾来源树突状细胞的分离与扩增培养

目的：探索树突状细胞（ＤＣ）及其前体的分离纯化及其体外扩增的方法。方法：无菌制备ＢＡＬＢ／Ｃ小鼠骨髓和脾细胞；先后用红细胞裂解液、抗鼠ＣＤ４、ＣＤ８、Ｂ细胞单抗（ＭｃＡｂ）和补体溶液，依次去除红细胞，Ｔ、Ｂ细胞，粒细胞和单核巨噬细胞等混杂细胞而获得纯化的ＤＣ及其前体；又在粒细胞巨噬细胞集落刺激因子（ＧＭＣＳＦ）和白细胞介素（ＩＬ４）协同诱导下培育，ＤＣ前体分化发育成ＤＣ或郎罕细胞（ＬＣ）并扩增，同时阻抑巨噬细胞发育生长。结果：ＤＣ／ＬＣ细胞数增加，其形态在光镜下多为特征性星形，也有梭形和多角形；扫描电镜下观察其绝大多数为特征性星形，且有１～４级不等的树突状突起，其纯度高达９５％以上。ＤＣ／ＬＣ在功能上明显刺激同种异体混合淋巴细胞反应（ＭＬＲ）。结论：①结果所得细胞的形态和功能符合ＤＣ／ＬＣ；②建立连续排异结合ＧＭＣＳＦ＋ＩＬ４联合诱生培育的方法，可获得大量高纯度的ＤＣ／ＬＣ。     

不同细胞因子对培养人外周血树突状细胞的影响

目的建立从人外周血分离、纯化、培养、扩增树突状细胞（ＤＣ）前体的方法，研究细胞因子对ＤＣ体外增殖、分化成熟的影响。方法人外周血经血细胞分离仪及Ｆｉｃｏｌ、Ｐｅｒｃｏｌ等不连续密度梯度离心获得的含ＤＣ前体细胞组分用重组人粒细胞／巨噬细胞集落刺激因子（ｈｒＧＭ－ＣＳＦ）培养或用ＧＭ－ＣＳＦ及白细胞介素－４（ＩＬ－４）联合培养；光镜及电镜观察及ＡＢＣ法免疫细胞化学染色。结果分离的ＤＣ前体经１周左右时间培养，细胞数量可扩增２０～３０倍，纯度达９０％以上，ＧＭ－ＣＳＦ与ＩＬ－４联合培养所得到的ＤＣ数量约为用ＧＭ－ＣＳＦ培养的１．５倍。ＤＣ具有典型的树枝状或裙褶状突起，并表达高水平的ＨＬＡ－ＤＲ，其ＣＤ１４、ＣＤ１９、ＣＤ３的表达均为阴性。结论用ＧＭ－ＣＳＦ和ＩＬ－４联合作用更能促进ＤＣ的体外扩增及分化。     

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.     

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     

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.     

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…     

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.     

CLINICAL SIGNIFICANCE OF SERUM CYTOKINES IL-1β,sIL-2R,IL-6,TNF-α,AND IFN-v IN ACUTE CORONARY SYNDROME

Objectives To explore serum cytokines levels (including IL-1 β, sIL-2R, IL-6, TNF-α, and IFN-v) and their significance in patients with acute coronary syndrome (ACS) and the subsequent follow-ups, with attempt to estimate the role of various serum inflammatory markers in the diagnosis and assessment of ACS.Methods The study population include 40 patients with acute myocardial infarction (AMI), 40 patients with unstable angina pectoris (UAP), and 40 controls. Among the 80 patients, 60 patients attended a follow up 4 months later. Serum inflammatory markers including IL-1 β, sIL-2R, IL-6, TNF-α, and IFN-v were measured by enzyme linked immunosorbent assay.Results Serum IL- 1 β, sIL-2R, IL-6, TNF-α were significantly higher in AMI group or UAP group compared to the control group and became significantly lower 4 months later in the follow-up patients. Serum levels of IFN-v shows no significant difference between AMI group or UAP group and controls, also showing no significant change when measured in follow up patients. There was no correlation between serum creatine kinase-MB isoenzyme levels and serum inflammatory markers either in UAP or AMI group. Furthermore, when divided into two subgroups using Wagner's QRS scoring system in the AMI group, there is no difference of each serum inflammatory marker between ≤ 6 scores group and ＞ 6 scores group.Conclusion Serum levels of certain inflammatory markers may have some diagnostic value for ACS, and can be a useful marker reflecting disease stability.