目的 探討乙型肝炎病毒(HBV)表面抗原(HBsAg)陽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核酸定量檢測(HBV DNA)相關性。 方法 2008年7月-2011年5月對97例HBsAg陽性肝硬化住院患者和50份HBsAg陰性的健康體檢者血清進行前S1抗原、HBV血清標志物檢測及實時熒光定量PCR檢測HBV DNA結果進行分析。 結果 97份HBsAg陽性肝硬化患者血清中,前S1抗原、HBeAg及HBV DNA陽性率分別為53.6%(52/97)、22.7%(22/97)及61.8%(60/97)。22例HBeAg陽性血清中,前S1抗原陽性18例(81.8%), HBV DNA陽性20例(90.9%)。75例HBeAg陰性血清中,前S1抗原陽性34例(45.3%),HBV DNA陽性40例(53.3%),兩者的前S1抗原與HBV DNA結果間都具有很好的相關性。HBV DNA含量與前S1抗原及HBeAg陽性結果顯示:HBsAg陽性的肝硬化患者血清中HBV DNA陰性率為38.1%(含量<103 copies/mL),而陽性檢出率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)。 結論 HBsAg陽性的肝硬化患者血清中主要以HBV非HBeAg陽性血清學模式為主,HBV DNA陽性檢出率的含量主要集中在103~105 copies/mL。前S1抗原在HBeAg陽性血清中與其含有HBsAg病毒及HBeAg陽性患者具有很好的相關性,而在HBeAg陰性血清中存在著差異。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.
【摘要】 目的 分析異基因造血干細胞移植術(allogeneic hematopoietic stem cell transplantation,allo-HSCT)后出血性膀胱炎(hemorrhagic cystitis,HC)相關的危險因素,動態監測受者尿BK病毒(BK virus,BKV),分析其與HC發病的關系。 方法 回顧性分析2003年3月-2008年1月期間接受allo-HSCT的121例患者的資料,選擇8個臨床參數[年齡、性別、疾病類型、移植時疾病狀態、供者類型、預處理方案、急性移植物抗宿主病(acute graft-versus-host disease,aGVHD)、aGVHD的預防方案]作COX回歸分析。采用SYBR Green染料實時熒光定量聚合酶鏈反應法對2006年9月-2008年1月42例allo-HSCT患者尿BKV載量進行動態監測,分析被檢查者尿液BKV基因載量與HC發生以及嚴重程度的關系。 結果 121例患者中有24例發生HC,發病時間為術后0~63 d,中位時間40 d;持續時間7~150 d,中位時間22 d。Ⅱ~Ⅳ度aGVHD為HC的獨立危險因素[RR=8.304,95%CI(1.223,56.396),P=0.030]。allo-HSCT受者尿液中BKV檢出率為100%(42/42)。與正常人及未發生HC的allo-HSCT受者相比,HC患者尿中BKV基因載量具有更高平均峰值。 結論 Ⅱ~Ⅳ度aGVHD,尿中BKV DNA高載量與HC的發生有相關性。【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.
【摘要】 目的 了解北京地區400例新型甲型H1N1流感患者的流行病學和臨床特征,總結規律,進一步指導臨床診治。 方法 2009年5-12月期間,收治400例甲型H1N1流感確診病例,主要采用描述性流行病學方法對患者資料進行回顧性分析,并運用單因素方差分析的方法對結果進行檢驗。 結果 患者以青年和兒童人群為主,47.0%的患者有明確甲型H1N1流感接觸史,主要癥狀包括發熱(98.8%)、咳嗽(85.8%)、咽痛(58.5%)。咽部充血(94.0%)和扁桃體腫大(49.5%)為主要體征。外周血白細胞正常或偏低,349例(82.3%)患者血清鐵降低,268例(72.6%)患者C反應蛋白升高。在發病后不同時間內給予奧司他韋治療的患者發熱持續時間和咽拭子的陰轉時間有顯著差異(Plt;0.001)。 結論 新型甲型H1N1流感發病多以青年和兒童人群為主,以流感樣癥狀為主,多數癥狀輕微,預后良好,C反應蛋白和血清鐵的變化可能對于早期診斷有指導價值,奧司他韋早期抗病毒治療可以縮短病程。【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.