血清HBV-DNA与其他HBV标记关系的观察

本文结果显示血清 HBV—DNA 与 HBsAg 滴度呈正相关,血清 HBsAg 滴度高低能大致反映病毒复制情况。血清抗-HBcIgM 滴度≥10~(-3)时,HBV-DNA 阳性率高达 80.5%,提示病毒复制活跃。PHSA-R 阳性血清 HBV-DNA 的检出率明显高于 PHSA-R 阴性血清,且随 PHSA-R 滴度上升 HBV-DNA 检出率增加,支持 PHSA-R 与病毒复制有关的观点.HBeAg 阳性血清大多可检到 HBV-DNA,二者呈正相关,但尚有25.6%的HBeAg 阳性血清未检出 HBV-DNA,而20.1%抗-HBe 阳性血清中 HBV-DNA 阳性。     

应用PCR技术检测HBsAg携带者血清中HBV DNA

应用聚合酶链反应(PCR)技术扩增38例HBsAg携带者和58例正常人血清中的HBV DNA特异性片段,通过与HBsAg滴度及HBV血清标志物进行对比分析,发现HBV DNA阳性率与HBsAg滴度呈正相关(r=0.981,P<0.005),与HBeAg减低、抗-HBe产生以及其后的e系统消失过程呈相应递减趋势。并且在单项抗-HBs阳性的血清中,HBV DNA检出率可达10％。     

乙型肝炎病人及其配偶HBV血清标志物检测

目的 比较分析乙型肝炎病人及其配偶HBV血清标志物的检测结果.方法 采用ELISA法和荧光PCR法对316例乙型肝炎病人及其配偶进行乙型肝炎五项指标与HBV DNA定量检测.结果 HBV DNA的阳性率和含量在HBeAg(+)与HBeAg(-)组差异均有显著意义(χ2=31.97、68.79,P<0.01);HBsAg的相对滴度与HBV DNA的含量关系不密切.乙型肝炎病人配偶HBV感染率为58.2%,有4例HBV DNA含量>1.0×106 copies/L.结论 HBeAg与HBV的复制和HBV DNA的高含量关系密切,而HBsAg的相对滴度则不能反映HBV的复制程度及传染性强弱.配偶间的密切接触可以引起HBV感染,但很少导致HBV DNA在体内的存在和复制.     

HBsAg阳性产妇血清和乳汁中HBV DNA载量分析

目的：探讨HBsAg(+)产妇血清和乳汁中HBV DNA载量关系及相关性,为慢性乙型肝炎产妇母乳喂养提供实验依据。方法对148例HBsAg(+)产妇血清和乳汁中乙肝病毒采用实时荧光定量PCR (FQ-PCR)方法检测HBV DNA,按产妇血清HBV载量分为HBV DNA载量<420 IU/ml组、420~104 IU/ml组、105~106 IU/ml组、107~108 IU/ml组,并同时收取产妇乳汁进行HBV DNA检测,比较不同组间乳汁HBV DNA阳性率以及血清HBV DNA与乳汁HBV DNA的相关性。结果148例HBsAg(+)产妇血清HBV DNA阳性率为31.8%(47/148),乳汁阳性率为16.2%(24/148),两者比较差异有统计学意义(χ2=7.355,P<0.05);HBsAg(+)产妇血清HBV DNA载量<420 IU/ml时,其对应的乳汁中均未检出HBV DNA;血清HBV DNA载量在420~104 IU/ml区间时,其对应乳汁中HBV DNA检出率为14.3%(3/18);血清HBV DNA载量在105~106 IU/ml区间时,其对应乳汁中HBV DNA检出率为71.4%(5/7);血清HBV DNA载量在107~108 IU/ml区间时,其对应乳汁中HBV DNA检出率为84.2%(16/19)(χ2=20.88,P<0.05);当血清HBV DNA含量升高时,乳汁中含量也相应增高,二者中度相关(r=0.628)。结论 HBsAg(+)产妇乳汁有不同载量的HBV DNA存在,其含量低于相应血清;随着血清HBV DNA载量的升高,产妇乳汁中HBV DNA载量有增高趋势,母乳喂养有潜在的传染性。     

慢性乙型肝炎病毒标志物145例相关性分析

用敏感的检测方法检测145例慢性乙型肝炎的血清乙型肝炎病毒标志物(HBVM),结果HBsAg阳性125例中HBeAg阳性56例,抗—HBe阳性55例,HBeAg和抗—HBe均阴性14例;HBV—DNA阳性80例。HBeAg阳性者中合并HBV—DNA阳性40例(71.4%);抗—HBe阳性的70例中有HBV—DNA阳性32例(45.7％)。说明HBV—DNA是更能反映体內HBV复制的指标;HBsAg滴度增加与HBeAg和HBV—DNA阳性例数呈平行关系,与抗一HBe呈反向关系。作者认为慢性乙型肝炎发病与HBV感染有密切关系,抗病毒治疗是十分必要的。     

乙型肝炎表面抗原定量与原发性肝癌的相关性研究

目的：比较慢性乙型肝炎( CHB)与HBV相关性原发性肝癌患者中乙肝表面抗原( HBsAg)和HBV DNA载量情况。方法采用化学发光法检测403例CHB及肝细胞肝癌( HCC)患者血清乙型肝炎病毒标志物滴度,采用荧光定量PCR技术检测患者血清HBV DNA载量。403例患者按照临床诊断分为CHB组(209例)和HCC组(194例)。结果 CHB组：血清HBsAg 滴度≥250 IU/mL者占89．00%;HBV DNA≥1000 copies /mL者占88．40%。 HCC组：血清HBsAg滴度≥250 IU/mL者占79．90%;HBV DNA≥1000 copies /mL 者占67．70%。两组HBsAg≥250 IU/mL患者的比例差异、HBV DNA≥1000 copies/mL 患者的比例差异均有统计学意义(P<0．05)。结论与CHB相比,HBV相关性原发性肝癌患者HBsAg、HBV DNA载量较低。     

HBV－DNA与HBVm检测结果对比分析

目的: 了解乙型肝炎病毒 (HBV)感染者体内 HBV- DNA含量 , 并探讨其临床意义 . 方法: 本文采用荧光定量聚合酶链反应 (FQ- PCR)和 ELISA两种方法同时检测了 822份血清 , 并对结果进行了对比分析 , 结果: 266例 HBsAg(+ )、 HBeAg(+ )、 HBcAg(+ )组的血清 HBV- DNA检出率为 87. 22% (232例 ), 平均拷贝数为 1. 72× 109.ml; 211例 HBsAg(+ )、 HBeAb(+ )、 HBvAb(+ )组血清 HBV- DNA检出率为 21. 27% (47例 ), 平均拷贝数为 6. 66× 108/ml, 190例 HBsAg(+ )、 HBcAb(+ )组血清 HBV- DNA检出率为 37.37% (71例 ), 平均拷贝数为 4.56× 108/ml; 47例 HBVm全阴性组血清 HBV- DNA检出率为 8.51% (4例 ), 平均拷贝数为 1.54× 108/ml. 结论: HBVm阴性的病人也可能有 HBV- DNA阳性 , 因此为临床提供 HBV感染、复制及传染性的判断以及指导治疗 , HBV- DNA定量 PCR检测具有重要的意义 .     

乙型肝炎病毒感染者DNA检测分析

①目的 了解HBV感染体内病毒复制情况。②方法 用PCR法检测HBV—DNA。③结果 共发现7种感染标志物组合模式，选用其中6种进行PCR扩增检测分析，以临床上的乙肝“大三阳”(HBsAg、HBeAg、抗-HBc)组HBV—DNA阳性率最高为100％；其次为“小三阳”(HBsAg、抗-HBe、抗-HBc)组HBV—DNA阳性率为30％。④结论 “大三阳”组人群体内乙肝病毒复制性强，具有高度传染性；在抗-HBe阳性携带中，也有相当一部分人具有传染性；单纯抗-HBc阳性中也存在一定的传染性。     

荧光定量PCR和ELISA检测乙肝病毒的应用比较

目的　探讨荧光定量PCR检测HBV—DNA的应用价值。　方法　从 2 92 0份用ELISA检测乙肝 5项的体检血清标本中 ,抽取 2 88份HBsAg阳性标本及 10 0份全阴标本 ,进行荧光定量聚合酶链式反应 (FQ—PCR)HBV—DNA定量分析。　结果　经FQ—PCR检测 ,80份HBsAg、HBeAg、HBcAb都阳性的标本 ,HBV—DNA阳性率为 10 0 % ( 80 /80 ) ,平均HBV—DNA拷贝数为 2 2× 10 8cp/ml ;164份HBsAg、HbeAb、HBcAb都阳性的标本 ,HBV—DNA阳性率为79 3 % ( 13 0 /164 ) ,平均HBV—DNA拷贝数为 1 5× 10 6cp/ml;12份HBsAg单项阳性的标本 ,HBV—DNA的阳性率为83 3 % ( 10 /12 ) ,平均HBV—DNA拷贝数为 1 6× 10 5cp/ml;10 0份HBsAg、HBsAb、HBeAg、HBeAb、HBcAb都阴性的标本 ,HBV—DNA的阳性率为 2 % ( 2 /10 0 ) ,平均HBV—DNA拷贝数为 4 5× 10 5cp/ml。　结论　FQ—PCR可以检测HBV的感染和复制情况 ,对准确报告HBV感染 ,指导其选择治疗方案和观察疗效具有重要的临床意义     

无症状HBsAg携带者血液传染性的研究

本文用斑点杂交法检测了163例无症状HBsAg携带者及105例HBsAg阴性而抗HBc和(或)抗HBs阳性者血清HBV-DNA,借以比较不同血清标志的传染性。无症状HBsAg携带者HBV-DNA检出率为58.3％,其中HBeAg阳性者为90.8％,抗HBe阳性者为14.7％:HBsAg阴性(抗HBc和/或抗HBs阳性)者中HBV-DNA检出率仅为1.9％.表明HBV-DNA与HBeAg关系最密切,HBV-DNA检出率与HBsAg滴度呈正相关,无性别差异,但与年龄有关,年龄越小HBV-DNA检出率越高。大多数无症状HBsAg携带者血中HBV—DNA阳性可持续9个月以上。     

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     

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.     

Possible Spread of adenovirus type 3 from poultry to humans ：indirect evidence from an outbreak in China

Objective:To explore the epidemiology and etiology for an outbreak of acute respiratory tract infection that occurred in one county of Jiangsu Province, China 2004. Methods: Only cases meeting the case definition were included in the study. We reviewed the medical records of the cases who were admitted to the local hospitals, interviewed cases by a standard questionnaire, and then described the epidemiotogic features and analyzed risk factors by means of a case-control study. We collected pharyngeal swab specimens and sent them to different laboratories for isolation and culture. The laboratory used different detection methods such as DIP, PCR, electron microscope examination and microneutralization assay, to identify and then type the positive specimens. Results:A total of 871 cases were reported during the period from April 18 to July 4,2004. The distribution of onset times presented two peaks, one in late May and another in middle June. The epidemic occurred mainly in the elementary and junior high schools in ten townships of one county, and the mean age of the cases was 12 years (range 7 months to 18 years). The course of the disease was acute, and was characterized by fever accompanied with sore throat and tonsillitis. The WBC count of cases was normal or elevated. The mean duration of illness was 5 days (range 2 to 12 days). No fatalities from illness were reported. A case-control study indicated that the possible risk factors were close contact with a case and/or poultry before onset and sharing of towels among members of the family. The typical CPE was observed through inoculating pharyngeal swab specimens into the HEP-2 cell cultures in different laboratories. An infection of adenovirus type 3 was verified by detecting positive specimens in different methods. Conclusion:This investigation demonstrated that the acute respiratory infection in cases was caused by adenovirus type 3. Cases occurred in over 70 schools in ten townships in 2004, and the route of transmission was possibly close contact with cases or droplet transmission.