人肝癌c—myc基因产物和HBxAg表达研究

本实验对４８例石蜡包埋人肝癌和癌旁组织的Ｐ６２＾ｃ－ｍｙｃ和ＨＢｘＡｇ进行了免疫组化检测。结果显示，Ｐ６２＾ｃ－ｍｙｃ在肝癌和癌旁组织阳性率分别为８３．３％和８９．６％，肝癌及其癌旁组织ＨＢｃＡｇ阳性率均为９３．８％，在肝癌组织中Ｐ６２＾ｃ－ｍｙｃ与ＨＢｘＡｇ的表达呈显著正相关性，这为ＨＢｘＡｇ在肝癌中作为反式作用因子激活ｃ－ｍｙｃ癌基因提供了细胞水平的证据。     

肝细胞癌c-fos的表达及其与乙型肝炎病毒的关系

目的 研究肝癌组织中ｃ－ｆｏｓ和ｃ－ｃｏｆ ｍＲＮＡ的表达及其与乙型肝炎病毒（ＨＢＶ）的关系。方法 采用免疫组化及原位杂交技术检测５９例肝细胞癌组织及５６例癌旁组织中ＨＢｓＡｇ、ＨＢＶ ＤＮＡ、ｃ－ｆｏｓ蛋白及ｃ－ｆｏｓ ｍＲＡＮ的表达。结果 癌旁肝组织ＨＢｓＡｇ阳性率为８７．５％（４９／５６）。肝癌组织ＨＢＶ ＤＮＡ阳性率为５９．３％（３５／５９）。肝细胞癌组织、癌旁肝组织ｃ－ｆｏｓ蛋白 阳性率     

凋亡相关基因bcl—2,bax,Fas及FasL在乙型肝炎病毒相关性？…

目的 探讨原发性肝癌中乙型肝炎病毒感染与凋亡基因ｂｃｌ－２、ｂａｘ、Ｆａｓ及ＦａｓＬ表达的关系。方法 采用免疫组化技术分析４０例原发肝细胞癌组织中乙肝病毒表现抗原（ＨＢｓＡｇ）阳性组和ＨＢｓＡｇ阴性组ｂｃｌ－２、ｂａｘ、Ｆａｓ及ＦａｓＬ的表达。结果 癌组织中ＨＢｓＡｇ阳性率为３０％（１２／４０）,癌旁组织中ＨＢｓＡｇ阳性率为６２．５％（２５／４０）,１２例ＨＢｓＡｇ阳性的癌组织中ｂｃｌ－２的ｂａｘ     

乙型肝炎病毒X蛋白单克隆抗体的制备及肝癌组织中相应抗原的检测

应用基因工程技术制备的１７０００乙型肝炎病毒（ＨＢＶ）Ｘ蛋白（ＨＢｘＡｇ）免疫动物，成功地制备了抗－ＨＢｘ单克降抗体，以此抗体对原发性肝癌（ＨＣＣ）组织、慢性活动性肝炎（ＣＡＮ）肝组织行相应抗原检测，并同时进行乙型肝炎表面抗原（ＨＢｓＡｇ）及乙型肝炎病毒核心抗原（ＨＢｃＡｇ）的检测。在ＨＣＣ标本中ＨＢｘＡｇ在癌内及癌周肝组织中的阳性率分别为５６％及４８％，ＨＢｓＡｇ为１６％及７４％。ＨＢｃＡｇ仅见于癌周，阳性率为１８％。在ＣＡＨ标本中，ＨＢｘＡｇ、ＨＢｓＡｇ、ＨＢｃＡｇ阳性率分别为６．６％、７３．３％及０。血清ＨＢｓＡｇ阳性ＨＣＣ标本中，ＨＢｘＡｇ的检出率为８２．３％、明显高于血清ＨＢｓＡｇ阴性标本（５４．５％）。结果显示。ＨＢｘＡｇ在ＨＣＣ标本中的表达是ＨＢＶ标志物中最活跃的。ＨＢｘＡｇ的表达不依赖于ＨＢＶ的复制，可能是ＨＢＶＸ基因同宿主细胞基因整合后的产物，ＨＢｘＡｇ在ＨＣＣ标本中的活跃表达为抗－ＨＢｘ抗体作为ＨＣＣ导向治疗载体提供了依据。     

丙型肝炎病毒C33c抗原、核心抗原和HBxAg在人原发性肝内胆管细胞癌中的分布及意义

目的：研究丙型肝炎病毒Ｃ３３ｃ抗原及核心抗原在人肝内胆管细胞癌中的分布及意义。方法：以免疫组织化学方法检测ＨＣＶ两种抗原及ＨＢｘＡｇ在肝内胆管细胞癌及癌旁肝组织中定位及分布。结果：ＨＣＶＣ３３ｃ抗原位于癌细胞或肝细胞的胞浆内；ＨＣＶ核心抗原在癌组织主要呈核阳性，在癌旁肝以胞浆阳性为主。ＨＣＶＣ３３ｃ抗原在癌组织及癌旁肝的阳性率分别为６０％（２１／３５）及１００％（２１／２１），ＨＣＶ核心抗原在上述两种组织的阳性率分别为８７．８％（２９／３３）及６１．９％（１３／２１）；ＨＢｘＡｇ在两种组织中检出率分别为７４．３％（２６／３５）及７６．２％（１６／２１）．Ｃ３３ｃ及ＨＢｘＡｇ双阳性分别为４８．６％（１７／３５）及７６．２％（１６／２１）．结论：除ＨＢＶ感染外，ＨＣＶ感染在人肝内胆管细胞癌的发生中可能起重要作用     

乙型肝炎病毒X蛋白单克隆抗体的制备及肝癌组织中相应抗原…

应用基因工程技术制备的１７０００乙型肝炎病毒（ＨＢＶ）Ｘ蛋白（ＨＢｘＡｇ）免疫动，成功地备了抗－ＨＢｘ单克隆抗体，以此抗体对原发性肝癌（ＨＣＣ）组织，慢性活动性肝炎（ＣＡＨ）肝组织行相应抗原检测，并同时进行乙型肝炎表面抗原（ＨＢｓＡｇ）及乙型肝炎病毒核心抗原（ＨＢｃＡｇ）的检测。在ＨＣＣ标本中ＨＢｘＡｇ在癌内及癌周肝组织中的阳性率分别为５６％及４８％，ＨＢｓＡｇ为１６％及７４％。ＨＢｃＡｇ仅见于癌     

P62~(c-myc)蛋白在乳腺癌中的表达及其临床意义

为探讨乳腺癌Ｐ６２ｃ－ｍｙｃ蛋白在乳腺癌中的表达及其临床意义，采用ＬＳＡＢ免疫组化法对１０７例乳腺癌标本进行Ｐ６２ｃ－ｍｙｃ蛋白的检测。结果显示：Ｐ６２ｃ－ｍｙｃ蛋白表达阳性率为６３．５５％（６８／１０７），对生存时间≤５年、＞５年～＜１０年和≥１０年者，其Ｐ６２ｃ－ｍｙｃ蛋白表达阳性率分别为９４．００％（４７／５０），６５．００％（１３／２０）和２１．６２％（８／３７）；Ｐ６２ｃ－ｍｙｃ蛋白过度表达与乳腺癌的临床分期，组织学分级，腋淋巴结转移有关，由此提示Ｐ６２ｃ－ｍｙｃ蛋白表达是判断乳腺癌预后的一个重要指标。     

P53与C－myc基因产物在肝细胞癌中的表达

应用免疫组织化学ＡＢＣ法检测了广东地区３０例人肝细胞癌（ＨＣＣ）Ｐ５３基因及Ｃ－ｍｙｃ基因产物。结果显示ＨＣＣ中Ｐ５３蛋白表达阳性率为４６．７％，ｍｙｃＰ６２蛋白表达阳性率为５６．７％，Ｐ５３蛋白表达阳性率与肿瘤细胞的分化程度有关，分化越差Ｐ５３阳性率越高。ＨＣＣ中同时有Ｐ５３基因和Ｐ６２基因表达者占２３．３％。结果提示：Ｐ５３基因突变和Ｃ－ｍｙｃ基因的激活均与ＨＣＣ的发生发展有关，但两者之间不一定存在依存关系。     

人原发性肝细胞癌地高辛素标记HBV DNA探针的原位杂交与C－myc和P_（53）癌基因表达相互关系的研究

取自肝癌高发区的４０例人原发性肝细胞癌（ＰＨＣ）标本，应用地高辛素（Ｄｉｇ）标记ＨＢＶＤＮＡ探针作原位杂交，检测ＰＨＣ和癌周肝组织内ＨＢＶＤＮＡ的表达，并用光敏生物素Ｃ－ｍｙｃ癌基因探针原位杂交和用免疫组化检测ＨＢｓＡｇ，ＨＢｃＡｇ及Ｐ５３癌基因在ＰＨＣ和癌周肝组织内的表达。Ｄｉｇ－ＨＢＶＤＮＡ探针肝内总阳性率为８０％，在ＰＨＣ内为６５％，而癌周肝组织中为７３％。ＨＢＶ－ＤＮＡ定位于肝细胞或癌细胞的胞浆和胞核内，而ＨＢＶＤＮＡ阳性颗粒在胞浆内比胞核内多。ＨＢＶＤＮＡ阳性细胞癌周比癌内更多。结果表明，ＰＨＣ病例与ＨＢＶ存在关系密切；癌内ＨＢＶＤＮＡ大都属整合型，而癌周属游离型。研讨ＰＨＣ内ＨＢＶＤＮＡ的表达与ＨＢｓＡｇ，ＨＢｃＡｇ，和Ｐ５３及Ｃ－ｍｙｃ癌基因的表达相互关系及致癌作用。     

肝硬变及肝癌癌旁肝组织中小多角肝细胞性质的免疫…

应用免疫组织化学的方法对６０例ＨＣＣ，癌旁肝组织和４７例肝硬变组织中ＨＢｓＡｇ和ＩＧＦ－Ⅱ表达进行实验观察，以探讨小多角肝细胞（ＳＰＬＣ）的性质。结果显示，在癌旁肝和肝硬变的ＳＰＬＣ中ＨＢｘＡｇ和ＩＧＦ－Ⅱ的阳性表达率分别为６９．１４％和６６．６７％，其中ＨＢｘＡｇ阳性的ＳＰＬＣ中ＩＧＦ－Ⅱ阳性率为８２．１４％，而ＨＢｘＡｇ阴性的ＳＰＬＣ中ＩＧＦ－Ⅱ阳性率为３２．００％，ＩＧＦ－Ⅱ的ＨＢｘＡｇ了性     

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.     

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.