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find Keyword "病毒" 648 results
  • Effectiveness of Chinese Herbal Retention Enema in Viral Hepatitis Patients: A Meta-Analysis

    Objective To evaluate the effectivenss of Chinese herbal retention enema in viral hepatitis patients. Methods Such databases as The Cochrane library, PubMed, EMbase, VIP, CNKI, CBM and WanFang Data were searched from the inception to December, 2011 to collect the randomized controlled trials (RCTs) about Chinese herbal retention enema in treating viral hepatitis, and the references of the included literature were also retrieved. Two reviewers independently screened the literature according to the inclusion and exclusion criteria, extracted the data, and evaluated and cross-checked the methodological quality. Then meta-analysis was conducted using RevMan 5.0 software. Results A total of 20 RCTs involving 1 735 patients were included. The subgroup analyses based on the length of intervention time showed that: a) after 2-week intervention: the overall effective rate of the Chinese herbal retention enema group was higher than that of the control group, with a significant difference (OR=3.19, 95%CI 1.87 to 5.44, Plt;0.000 1). Compared with the control group, the Chinese herbal retention enema group better promoted the recovery of liver function by more reduction of AST (MD= ?82.50, 95%CI ?145.66 to ?19.34, P=0.01), ALT (MD= ?44.78, 95%CI 65.90 to ?23.66, Plt;0.000 1) and TBIL (MD= ?37.51, 95%CI ?74.07 to ?0.95, Plt;0.0001). b) After 1-month intervention: The overall effective rate of the Chinese herbal retention enema group was higher than that of the control group, with a significant difference (OR=4.17, 95%CI 2.37 to 7.32, Plt;0.000 01). Compared with the control group, the Chinese herbal retention enema group better promoted the recovery of liver function by more reduction of AST (MD= ?17.86, 95%CI ?29.97 to ?5.76, P=0.004), ALT (MD= ?27.84, 95%CI ?42.45 to ?13.24, P=0.000 2), and TBIL (MD= ?54.15, 95%CI ?116.52 to ?8.23, P=0.09). Conclusion Chinese herbal retention enema can improve the overall effective rate for viral hepatitis patients, alleviate virus damage to liver cell and promote liver function recovery. The commonly used Chinese medicinals for enema are Radix et Rhizoma Rhei, Herba Artemisiae Capillaris, Salvia miltiorrhiza, and Radix Paeoniae Rubra.

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  • Prevalence, Prevention and Treatment of Human Infection with H7N9 Avian Influenza Virus: Evidence, Challenge and Thinking

    H7N9, a novel avian influenza A virus that causes human infections emerged in February, 2013 in Anhui and Shanghai, China. The epidemic quickly spread to Zhejiang, Jiangsu and other neighbor provinces. As of May 30th, 2013, WHO had reported 132 cases, 37 (28%) of which died. Aiming at such serious outbreak of epidemic, we retrospectively analyzed its etiology, epidemiology, clinical characteristics, treatment, prevention and control based on data and evidence. Experience and evidence of the risk surveillance and management of such a novel anthropozoonosis lacks in China, or even lacks around the world. Quick and accurate identification of the rules and of the variation and transmission of avian influenza virus becomes a key to prevention, control and treatment. According to current best available evidence around the world, Chinese medicine and biomedicine should be put in to parallel use. Only realizing evidence-based decision making can we effectively prevent and control the epidemic, treat patients, and reduce the loss.

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  • Telbivudine in the Treatment of Chronic Hepatitis B: A Systematic Review

    Objective  To assess the efficacy of telbivudine in the treatment of chronic hepatitis B (CHB). Methods Randomized controlled trials (RCTs) of telbivudine therapy vs. lamivudine therapy in both Chinese and English were retrieved from seven electronic databases with a cut-off date in February 2010, including PubMed, EMbase, VIP, CBM, CNKI, and The Cochrane library. The meta-analyses and evaluation on methodology quality were performed for the included studies. Results Two RCTs as Grade-A study were included. The meta-analyses showed that telbivudine was superior to lamivudine in aspects of therapeutic response (RR=1.28, 95%CI 1.10 to 1.48, P=0.001), ALT normalization (RR=1.12, 95%CI 1.01 to 1.23, P=0.02), and PCR-negative HBV DNA or below the lower limit (RR=1.44, 95%CI 1.36 to 1.53, Plt;0.000 01), primary treatment failure (OR=0.28, 95%CI 0.18, to 0.43, Plt;0.000 01), viral breakthrough (OR=0.38, 95%CI 0.32 to 0.47, Plt;0.000 01) and viral resistance (OR=0.44, 95%CI 0.36 to 0.55, Plt;0.000 01). Conclusion Based on the current clinical evidence, telbivudine demonstrates superiority in comparison with lamivudine on all direct measures of antiviral efficacy for CHB. Because of the short follow-up duration and the small sample size of the included studies, it is expected to further discuss the long-term efficacy.

    Release date:2016-08-25 02:48 Export PDF Favorites Scan
  • A systematic review on Chinese medicinal herbs for asymptomatic carriers of hepatitis B virus

    Objective To assess the efficacy and safety of Chinese medicinal herbs for asymptomatic hepatitis B virus(HBV) infection. Data Source The trials registers of the Cochrane Hepato-Biliary Group, the Cochrane Library and the Cochrane Complementary Medicine Field were searched in combination with MEDLINE, EMBASE, and handsearches of Chinese journals and conference proceedings. Data Selection Randomized clinical trials with 3 months follow-up comparing Chinese medicinal herbs versus placebo, no intervention, non-specific treatment, or interferon treatment for asymptomatic HBV carriers were included. No language and blinding limitations were applied. Data Extraction Data were extracted independently by two reviewers. The methodological quality of trials was assessed by the Jadad-scale plus allocation concealment. Results Three randomized clinical trials (307 patients) with low methodological quality following patients for three months or more after the end of treatment were included. Herbal compound Jianpi Wenshen recipe showed significant effects on clearance of HBV markers compared to interferon: relative risk 2.40 (95 % CI 1.01 to 5.72) for clearance of serum HBsAg, and 2.54 (1.13 to 5.70) for seroconversion of HBeAg to anti-HBe. Phyllanthus amarus and Astragalus membranaceus showed no significant antiviral effect compared with placebo. Analysis of pooling eight randomized clinical trials with less than three months follow-up did not show a significant benefit of Chinese medicinal herbs on viral markers. No serious adverse event was observed. Conclusions There is insufficient evidence for treatment of asymptomatic HBVcarriers using Chinese medicinal herbs due to the low quality of the trials. Further randomized, double blind, placebo-controlled trials are needed.

    Release date:2016-08-25 03:16 Export PDF Favorites Scan
  • Genus Phyllanthus for chronic hepatitis B virus infection: a systematic review

    Objective To evaluate the efficacy and safety of genus Phyllanthus for chronic HBV infection. Design a systematic review of randomized clinical trials. Methods Randomized trials comparing genus Phyllanthus versus placebo, no intervention, general non-specific treatment, other herbal medicine, or interferon treatment for chronic HBV infection were identified by electronic and manual searches. Trials of Phyllanthus herb plus interferon versus interferon alone were also included. No blinding and language limitations were applied. The methodological quality of trials was assesses, by the Jadadscale plus allocation concealment. Results Twenty-two randomized trials (n=1 947) were identified. The methodological quality was high in five double blind trials and rest was low. The combined results showed that Phyllanthus species had positive effect on clearance of serum HBsAg (relative risk 5.64, 95%C1 1.85 to 17.21) compared with placebo or no intervention. There was no significant difference on clearance of serum HBsAg, HBeAg and HBV DNA between Phyllanthus and interferon. Phyllanthus species were better than non-specific treatment or other herbal medicines on clearance of serum HBeAg, HBeAg, HBV DNA, and liver enzyme normalization. Analyses showed a better effect of the Phyllanthus plus interferon combination on clearance of serum (1.56, 1.06 to 2.32) and HBV DNA (1.52, 1.05 to 2.21) than interferon alone. No serious adverse events were reported. Conclusions Based on the review Phyllanthus species may have positive effect on antiviral activity and liver biochemistry in chronic HBV infection. However, the evidence is not b due to the general low methodological quality and the variations of the herb. Further large trials are needed.

    Release date:2016-08-25 03:16 Export PDF Favorites Scan
  • Glycyrrhizin for chronic hepatitis: protocol of systema tic review of randomized controlled trials

    Backgroud Chronic hepatitis is the major infectious disease of liver. There is no effective drug for it up to now. Clinical trials have showed that glycyrrhizin have potentional effective for chronic hepatitis. Objective To evaluate the effectiveness, safety and economics of glycyrrhizin for chronic hepatitis B and C. Search strategy The search terms include glycyrrhizin and its products’ name, chronic hepatitis and chronic carrier status. The thais registers of the Cochrane Hepato-Biliary Group, the Cochrane Complementary Medicine Field, and the central database of The Cochrane Library as well as MEDLINE, EMBASE and Chinese Biomedical CD Database were searched from their date of inception onward. And the free Internet search was operated to find ongoing and unpublished researches. Twenty Chinese medical journals and relevant academic conference proceedings have been searched by manual method. The reference lists of identified documents were checked as the complementary search. Inclusion criteria All randomized trials that tested glycryyhizin for chronic hepatitis B virus or hepatitis C virus infection were included in this review. Method of the review According to the principle of Cochrane systematic review, selection of thai for inclusion, assessment of methodological quality, data extraction and data syntheses were conducted by two reviewers.

    Release date:2016-08-25 03:17 Export PDF Favorites Scan
  • Analysis of Three Clusters of Patients with Severe Acute Respiratory Syndrome in Shenzhen

    Objective To study the epidemic and clinical characteristics of three clusters of early cases of severe acute respiratery syndrome (SARS) in Shenzhen. Methods To retrospectively investigate three clusters of patients. To extract data on clinical presentation and laboratory studies. Results In the first cluster, one patient with SARS in Shenzhen had visited Hong Kong twice in one week. He had felt initial cold and fever in Hong Kong on January 14, while the second case had been onset of SARS when he had been back from Hong Kong. There were 5 people infected in the second cluster at the same time 1 week after they visited their father in a hospital in GuangZhou. Among the three clusters, two clusters had not been infected in ShenZhen, they are inputted, and another cluster is not clear, but it maybe inputted. Three clusters are distributed, they all had high fever. Among them, five had total body muscular soreness and unproductive cough, four with headache, three chill, and two dizziness and pharyngalgia. Three cases had asthma and diarrhea 1 week after the onset of SARS, and progressed to ARDS. The six patients with SARS in Shenzhen People’s Hospital tested positive for coronavirus-related anti-body (IgG) in their plasma 10-15 d after the onset. This IgG titres in one patient remained high (1∶640) 120 days after the onset. Neutrophilia and lymphopenia occurred in patients who died. The more severe the patients’condition was, the higher was the level of LDH increased. Conclusion In three clusters, most patients had not infected in Shenzhen, they are inputted and distributed. That patients with SARS tested positive for coronavirus-related IgG in their plasma.

    Release date:2016-08-25 03:33 Export PDF Favorites Scan
  • Analysis of the Correlation among Pre-S1 Antigen, HBeAg and the Results of HBV DNA in Patients with HBsAg-positive Hepatic Cirrhosis

    目的 探讨乙型肝炎病毒(HBV)表面抗原(HBsAg)阳性肝硬化患者血清中HBV前S1抗原(前S1抗原)、HBV e抗原(HBeAg)及HBV核酸定量检测(HBV DNA)相关性。 方法 2008年7月-2011年5月对97例HBsAg阳性肝硬化住院患者和50份HBsAg阴性的健康体检者血清进行前S1抗原、HBV血清标志物检测及实时荧光定量PCR检测HBV DNA结果进行分析。 结果 97份HBsAg阳性肝硬化患者血清中,前S1抗原、HBeAg及HBV DNA阳性率分别为53.6%(52/97)、22.7%(22/97)及61.8%(60/97)。22例HBeAg阳性血清中,前S1抗原阳性18例(81.8%), HBV DNA阳性20例(90.9%)。75例HBeAg阴性血清中,前S1抗原阳性34例(45.3%),HBV DNA阳性40例(53.3%),两者的前S1抗原与HBV DNA结果间都具有很好的相关性。HBV DNA含量与前S1抗原及HBeAg阳性结果显示:HBsAg阳性的肝硬化患者血清中HBV DNA阴性率为38.1%(含量<103 copies/mL),而阳性检出率HBV DNA含量主要集中在103~105 copies/mL,占81.7%(49/60),HBV DNA含量>105 copies/mL占18.3%(11/60)。 结论 HBsAg阳性的肝硬化患者血清中主要以HBV非HBeAg阳性血清学模式为主,HBV DNA阳性检出率的含量主要集中在103~105 copies/mL。前S1抗原在HBeAg阳性血清中与其含有HBsAg病毒及HBeAg阳性患者具有很好的相关性,而在HBeAg阴性血清中存在着差异。Objective To study the correlation among Pre-S1 antigen, HBeAg and HBV DNA results in patients with HBsAg-positive liver cirrhosis. Methods We retrospectively analyzed the serum pre-S1-antigen, HBV serum markers and real-time quantitative PCR HBV DNA results in 97 patients with HBsAg-positive liver cirrhosis and 50 HBsAg-negative healthy volunteers in our hospital from July 2008 to May 2011. Results Among the 97 samples of HBsAg-positive liver cirrhosis patients’ serum, the positive rates of Pre-S1 antigen, HBeAg and HBV DNA were 53.6% (52/97), 22.7% (22/97) and 61.8% (60/97), respectively. In the 22 samples of HBeAg-positive serum, the number of positive pre-S1 antigen and HBV DNA was 18 (81.8%) and 20, respectively. In the 75 samples of negative HBeAg serum, the number of positive pre-S1 antigen and HBV DNA was 34 (45.3%) and 40 (53.3%) respectively. The pre-S1 antigen was correlated well with HBV DNA results in both the two groups. HBV DNA level, pre-S1 antigen and HBeAg-positive results showed that the serum HBV DNA negative rate of HBsAg-positive patients with cirrhosis was 38.1% (<103 copies/mL), while the positive rate of HBV DNA level was mainly concentrated at 103~105 copies/mL, accounting for 81.7% (49/60), and HBV DNA level over 105 copies/mLaccounted for only 18.3% (11/60). Conclusions HBsAg-positive patients with cirrhosis mainly have a serum non-HBeAg-positive HBV serology pattern, and HBV DNA positive rate of the content is mainly concentrated at 103~105 copies/mL. There is a good correlation between pre-S1 antigen in HBeAg-positive serum and patients with HBsAg virus or positive HBeAg, while for Pre-S1 antigen in HBeAg-negative serum, it is quite different.

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  • Analysis of Risk Factors for Development of Hemorrhagic Cystitis in Recipients of Allogeneic Hematopoietic Stem Cell Transplantation

    【摘要】 目的 分析异基因造血干细胞移植术(allogeneic hematopoietic stem cell transplantation,allo-HSCT)后出血性膀胱炎(hemorrhagic cystitis,HC)相关的危险因素,动态监测受者尿BK病毒(BK virus,BKV),分析其与HC发病的关系。 方法 回顾性分析2003年3月-2008年1月期间接受allo-HSCT的121例患者的资料,选择8个临床参数[年龄、性别、疾病类型、移植时疾病状态、供者类型、预处理方案、急性移植物抗宿主病(acute graft-versus-host disease,aGVHD)、aGVHD的预防方案]作COX回归分析。采用SYBR Green染料实时荧光定量聚合酶链反应法对2006年9月-2008年1月42例allo-HSCT患者尿BKV载量进行动态监测,分析被检查者尿液BKV基因载量与HC发生以及严重程度的关系。 结果 121例患者中有24例发生HC,发病时间为术后0~63 d,中位时间40 d;持续时间7~150 d,中位时间22 d。Ⅱ~Ⅳ度aGVHD为HC的独立危险因素[RR=8.304,95%CI(1.223,56.396),P=0.030]。allo-HSCT受者尿液中BKV检出率为100%(42/42)。与正常人及未发生HC的allo-HSCT受者相比,HC患者尿中BKV基因载量具有更高平均峰值。 结论 Ⅱ~Ⅳ度aGVHD,尿中BKV DNA高载量与HC的发生有相关性。【Abstract】 Objective To identify the risk factors for hemorrhagic cystitis (HC) after allogeneic hematopoietic stem cell transplantation (allo-HSCT), and define the quantitative relationship between BK virus (BKV) DNA load with HC. Methods The medical records of 121 patients undergoing allo-HSCT from March 2003 to January 2008 were retrospectively analyzed. Eight clinical parameters were selected for COX regression analysis, including age, sex, underlying disease, disease status at transplant, donor type, conditioning regimen, acute graft-versus-host disease (aGVHD), and GVHD prophylaxis. From September 2006 to January 2008, mid-stream urine samples were continuously collected from 42 patients with allo-HSCT. SYBR green real-time polymerase chain reaction, technique was utilized to define the quantitative relationship between BKV DNA load and HC. Results Twenty-four out of 121 patients developed HC. The median time of onset was 40 days after HSCT, ranged from 0 to 63 days. The disease lasted for 7 to 150 days, with a median duration of 22 days. Grade Ⅱ-Ⅳ aGVHD [RR=8.304, 95% CI (1.223,56.396); P=0.030] was identified as an independent risk factor for the occurrence of HC. BKV excretion was detected in 100% (42/42) of the recipients of allo-HSCT. When compared with asymptomatic patients and allo-HSCT recipients without HC, patients with HC had a significantly higher mean peak BKV DNA load. Conclusions Patients are at an increased risk of developing HC if they have grade Ⅱ-Ⅳ aGVHD. A correlation between the load of BKV and incidence of HC may exist.

    Release date:2016-08-26 02:18 Export PDF Favorites Scan
  • Epidemiologic and Clinical Characteristics of 400 Patients with H1N1 Influenza A in Beijing

    【摘要】 目的 了解北京地区400例新型甲型H1N1流感患者的流行病学和临床特征,总结规律,进一步指导临床诊治。 方法 2009年5-12月期间,收治400例甲型H1N1流感确诊病例,主要采用描述性流行病学方法对患者资料进行回顾性分析,并运用单因素方差分析的方法对结果进行检验。 结果 患者以青年和儿童人群为主,47.0%的患者有明确甲型H1N1流感接触史,主要症状包括发热(98.8%)、咳嗽(85.8%)、咽痛(58.5%)。咽部充血(94.0%)和扁桃体肿大(49.5%)为主要体征。外周血白细胞正常或偏低,349例(82.3%)患者血清铁降低,268例(72.6%)患者C反应蛋白升高。在发病后不同时间内给予奥司他韦治疗的患者发热持续时间和咽拭子的阴转时间有显著差异(Plt;0.001)。 结论 新型甲型H1N1流感发病多以青年和儿童人群为主,以流感样症状为主,多数症状轻微,预后良好,C反应蛋白和血清铁的变化可能对于早期诊断有指导价值,奥司他韦早期抗病毒治疗可以缩短病程。【Abstract】 Objective To investigate the clinical and epidemiologic characteristics of pandemic influenza A (H1N1) virus infection in Beijing. Methods The epidemiological information and clinical characteristics of 400 patients with pandemic influenza A (H1N1) virus infection hospitalized in Beijing 302 Hospital from May to December, 2009 were analyzed retrospectively by descriptive epidemiology. One-way ANOVA was used to assess the results. Results H1N1 virus infection preferentially affected adolescents and young adults. The mean age of the patients was 23 years. A total of 189 (47.0%) of the patients had an identifiable epidemiologic link to another confirmed patient. The most common symptoms were fever (98.8%), cough (85.8%) and sore throat (58.5%). The main physical signs were pharyngeal portion congestion (94.0%) and antiadoncus (49.5%). The number of leukocytes in the peripheral blood was normal or low. The decreased serum iron and elevated C-reaction protein were found in 82.3% and 72.6% of the patients. There was significant difference in the duration of fever and viral shedding from throat swabs among the patients who accept the antiviral medication within the different time. Conclusion H1N1 virus infection preferentially affects adolescents and young adults, and presents with influenza-like illness. The clinical course of H1N1 virus infection is generally mild. The change of C-reaction protein and serum iron may be favorable for the diagnosis of H1N1. Early antiviral treatment may shorten the duration of fever and viral shedding.

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