【摘要】 目的 了解乙型肝炎病毒（HBV）X基因在HBV相关肝病肝移植受体术后外周单个核细胞（PBMC）和骨髓CD34+细胞内的整合情况及其对乙肝疫苗接种的影响。 方法 采集1999年6月-2005年11月25例HBV相关肝病肝移植受体的外周静脉血及其中23例的骨髓血，以密度梯度离心结合单克隆免疫磁珠分离法获取外周血单个核细胞及骨髓CD34+细胞后，提取细胞DNA。因HBV X基因的整合频率最高，设计HBV X基因的特异引物，进行HBV-Alu-PCR，终产物进行电泳并回收、连接载体、筛选扩增后测序，检测有无X基因整合。 结果 经PCR后电泳及测序分析，25例HBV相关肝病肝移植受体术后的PBMC内未检测出HBV X基因的整合，其中采集到骨髓标本的23例CD34+细胞中亦未检测到HBV X基因的整合。 结论 肝移植术后受体体内HBV微生态的剧烈改变，使HBV整合的基本条件丧失，在此情况下，外周免疫细胞及骨髓造血干/祖细胞不是发生HBV整合的适宜场所，乙肝疫苗接种效果与HBV X基因整合关系不明确。【Abstract】 Objective To investigate whether hepatitis B virus HBV X gene integrates in peripheral blood mononuclear cell (PBMC) and bone marrow CD34+ cells from HBV related liver disease recipients after liver transplantation. Methods Between June 1999 and November 2005, PBMC were obtained from 25 HBV related liver disease recipients after liver transplantation and bone marrow CD34+ cells obtained from 23 cases among them. The cellular DNA was extracted by DNA isolation and purification kit following the manufacture’s instructions. Specific primers to HBV X gene and to human Alu repeats were used to amplify the virus integration through a 3-round hemi-nest PCR. The PCR final product was judged by 1.2% agarose electrophoresis, ligated to T vector, proliferated in E. coil 5α and sequenced. Results According to agarose electrophoresis and sequencing analysis, there were no HBV X gene integration in PBMC and bone marrow CD34+ cells from HBV related liver transplant recipients after surgery. Conclusions Because of the radical change of HBV microecological environment in HBV related liver transplant recipients after operation, the fundamental condition of HBV integration has been lost, which led PBMC and bone marrow CD34+ cells not suit to HBV X gene integrate to human genome. And the impact of HBV X gene integration on HBV vaccination is still undefined.
ObjectiveTo explore the clinical value of fibrinogen-albumin-ratio (FAR) in adult extracorporeal membrane oxygenation (ECMO) hemorrhage. MethodsThe clinical data of adult patients receiving ECMO in the West China Hospital from 2018 to 2020 were analyzed retrospectively. Patients were divided into a bleeding group and a non-bleeding group based on whether they experienced bleeding after ECMO. Logistic regression analysis was used to study the relationship between FAR and bleeding, as well as risk factors for death. Receiver operating characteristic (ROC) curve and area under the curve (AUC) were used to analyze the predictive ability of FAR. According to the optimal cut-off value of FAR for predicting hemorrhage, patients were divided into a high-risk group and a low-risk group, and the occurrence of bleeding was compared between the two groups. ResultsA total of 125 patients were enrolled in this study, including 85 males and 40 females, aged 46.00 (31.50, 55.50) years. Among them, 58 patients received veno-arterial extracorporeal membrane oxygenation (VA-ECMO) and 67 patients received veno-venous extracorporeal membrane oxygenation (VV-ECMO). There were 49 patients having bleeding, and the lactate level was higher (P=0.026), the platelet count before ECMO initiation and 24 h after ECMO initiation was lower (P=0.031, 0.020), the fibrinogen level 24 h after ECMO initiation was lower (P=0.049), and the proportion of myocarditis patients was higher (P=0.017) in the bleeding group than those of the non-bleeding group. In the subgroup analysis of ECMO mode, the higher D-Dimer, lactate level and lower FAR before and 24 h after ECMO initiation were associated with bleeding in the VA-ECMO group (P=0.017, 0.011, 0.033, 0.005). The 24 h FAR was independently correlated with bleeding (P=0.048), and AUC was 0.714. The cut-off value was 55.73. According to this optimal cut-off value, 25 patients were divided into the high-risk group (≤55.73) and 33 into the low-risk group (>55.73). There was a higher incidence of bleeding in the high-risk group compared to the low-risk group (unadjusted P=0.002; P=0.013 for multivariable adjustment). In the VV-ECMO group, the relationship between FAR and bleeding events was not significant (P>0.05). ConclusionLow 24 h FAR is an independent risk factor for bleeding in VA-ECMO patients, and the diagnostic cut-off value is 55.73.
Objective?To assess the effectiveness and safety of diclofenac, one of the routine-used NSAIDs, in preventing post-endoscopic retrograde cholangiopancreatography pancreatitis (PEP). Methods Firstly, the electronic searches were conducted to retrieve Randomized controlled trials (RCTs) from The Cochrane Library, PubMed, Embase, OVID, CBM, CNKI, VIP and WanFang Data. Secondly, 12 kinds of specific Chinese journals like Chinese Journal of Gastroenterology and conference proceedings were hand-searched till June 2011, and all references in all included trials were searched, too. The RCTs on diclofenac for preventing PEP were identified and retrieved. The systematic review was conducted by using methods and principles recommended by the Cochrane Collaboration. Results A total of 5 RCTs involving 675 PEP patients were included. The Meta-analysis showed that diclofenac might reduce the incidence of PEP (OR=0.41, 95%CI 0.18 to 0.95, P=0.04), but the sensitivity analysis indicated this result was not stable. No evidence showed diclofenac could reduce the incidence of severe PEP (OR=0.40, 95%CI 0.08 to 2.06, P=0.27). And no adverse reactions related to the drug were reported. Conclusion Diclofenac may be safe and effective in reducing the incidence of PEP, but it has no significant effect on preventing severe PEP. Considering the methodological and scale limitation of included studies, this conclusion still needs to be proved by more large-scale and high-quality RCTs.
Objective To provide a reference for the exploration to the characteristic specialized subjects in well-off township hospital construction principle, thought and standard through investigating the basic medical units in Shuangliu County. Methods Self-designed questionnaires were made to survey the current situation of characteristic professional subjects in 24 county township medical units comprehensively (i.e. 3 central township hospitals, 3 community health centers, and 18 general township hospitals). Epidate 3.1 was used for data input, SPSS 17.0 was used for descriptive statistics and stratified analysis. Results Fifteen among 24 township hospitals in Shuangliu County set up 21 characteristic specialized subjects, accounted for 62.5%; Traditional Chinese Medicine Orthopedics Subjects were set up in 9 hospitals, accounted for 42.9% ranked as the top; Chinese Medicine Rehabilitation Physiotherapy Subjects were set up in 6 hospitals, accounted for 28.6% ranked as the second. Conclusion The characteristic specialized subjects in township hospitals should be established with reasonable planning and construction according to diagnosis and therapy demand for local disease and hospital’s condition, so as to promote characteristic medical services in market competition by subject construction. Traditional Chinese Medicine Orthopedics Subject and Chinese Medicine Rehabilitation Physiotherapy Subject are worth to be established and spread as characteristic specialized subject.
Objective To survey the present situation of medical equipment configuration of township hospitals in Shuangliu County, to provide baseline data for the next step of discussing the well-off township hospital medical equipment configuration standards. Methods According to the national guidance on device configuration in township hospitals, the questionnaire was made to survey 24 county township medical units (i.e. 3 central township hospitals, 3 community health centers, and 18 general township hospitals). The descriptive and stratified analysis was performed for the survey results. Results The condition of medical equipment configuration in the 3 central hospitals was better than that in the 3 community health centers which was better than that in the 18 general hospitals. The emergency equipment configuration such as defibrillator units, breathing airbags, and tracheotomy package was poor. Annual inspection rate of medical metering equipment was lower than expectation. In 2010, a total of 127 medical measuring equipments from 98.5% of the township hospitals applied annual inspection, among which, only the total annual rate of black and white B ultrasonic and X-ray machine reached above 60%; the rate of blood cells analyzer, ECG monitoring instrument, and biochemical analyzer were between 50% to 60%; and the rate of urine analyzer was the lowest at 4.5%. Conclusion It is the right time to strengthen the first aid equipment configuration in township hospitals and to enhance the annual inspection rate of the medical measuring equipment, so that the safety use and accuracy detecting can be guaranteed.
ObjectiveTo explore the relationship between liver transplantation procedure with or without preservation of retrohepatic vena cava and postoperative reinfection of hepatitis B virus.MethodsHepatitis B virus makers of 15 retrohepatic vena cava samples from hepatitis B virus active replicating recipients was detected using immunohistochemistry stain LSAB and HBV DNA hybridization in situ. Hepatitis B virus reinfection rate and survival rate after transplantation in classic group (20 cases) and piggyback group (7 cases) was analyzed retrospectively. ResultsHepatitis B virus makers including HBsAg and HBcAg and HBV DNA of all 15 retrohepatic vena cava samples, 10 from classic group and 5 from piggyback group, was negative. In classic group, 20 recipients were followedup 6-30 months, mean 18 months, only one case of hepatitis B recurrence was confirmed 22 months after operation; In piggyback group,7 recipients were followedup 5-12 months, mean 8 months, none of hepatitis B virus reinfection was encountered. Recurrence rate in classic group and piggyback group was 5.0%(1/20) and 0(0/7), respectively.ConclusionThis preliminary study indicated that the retrohepatic vena cava of hepatitis B virus active replicating recipients don’t have the residence and replication of hepatitis B virus particle. Orthotopic liver transplantation procedure with preservation of retrohepatic vena cava appears not to increase the hepatitis B virus reinfection rate in hepatitis B virus active replicating recipients after transplantation.
Objective To survey the current status of residents’ health examination in township medical units in Shuangliu county, so as to provide references for exploring the residents’ health examination mode suitable for the well-off rural hospitals, and for improving the effects of physical examination. Methods The self-designed questionnaires were made to survey the current situation of health examination for the residents in 24 township medical units in Shuangliu County, including 3 central township hospitals, 3 community health centers and 18 general township hospitals; and the outline was designed to interview the people responsible for managing and implementing the resident’s examination work. The Epidate 3.1 was used for data input, the SPSS 17.0 was used for descriptive statistics and stratified analysis, and the classification method was adopted for qualitative research of personal interview data. Results The number of primary health care units for carrying out residents’ health examination got gradually increased year by year from 2008 to 2010; and all 24 township-level medical units had already carried out that examination by 2010. But some issues still existed such as lower participation rate and ineffective utilization of the archives. Conclusion a) It is necessary to prepare well, enhance organizing, expand publicity, and increase participation rate when primary health care units carry out the health examination for residents; b) It is necessary requires to fasten the informatization construction of health archives, and to quicken the process and analysis of examination information; and c) It is advisable to constantly optimize the examination items according to exam information, to improve the qualification of medical staffs, and to fasten the construction of exam team.
Objective To survey the drug distribution status in 24 township medical units in Shuangliu county, so as to provide references to explore the drug distribution mode for well-off township hospital. Methods An outline was made to interview the relevant workers who were in charge of the rural drug distribution management in all levels of the food and drug supervision bureaus of Sichuan province, Chengdu city or Shuangliu county, the township hospitals, the village clinics, and the drug distribution enterprises. At the same time, a self-designed questionnaire was distributed to 24 county township medical units (ie, three central township hospitals, three community health centers, and 18 general township hospitals). The Epidate3.1 was used for data-inputting, and the SPSS 17.0 was used for descriptive statistics and stratified analyses. Results At present, there was only one enterprise taking responsibility of the rural drug distribution in Shuangliu county since the strategy of enterprise direct-distribution under “two nets” supervision starting iShuangliu county of Sichuan province; Township medical units; Drug distribution; Status surveyn 2003, and there was no obvious difference in distribution before and after that strategy. The general satisfaction of 24 county township medical units with the distribution enterprise was only 50%, and the satisfaction with the price and the number of drug distribution was the lowest, accounting for 37.5% and 33.3%, respectively. Conclusion The enterprise direct-distribution under the “two nets” supervision for rural drug distribution makes the drug distribution market regular and gets good social effect, but there are still the same problems such as lack of marketization, low transparency, and high drug price, so it is necessary to introduce a new competition and management mechanism to promote the new breakthrough in rural drug distribution.