目的:研究重度慢性乙型病毒性肝炎患者肠黏膜通透性的变化并探讨其病理生理机制.方法:采用高效液相色谱蒸发光散射器(HPLC-ELSD)检测30例正常人和30例重度慢性乙型肝炎患者尿中乳果糖和甘露醇排泄率的变化,以尿乳果糖/甘露醇排泄率的比...目的:研究重度慢性乙型病毒性肝炎患者肠黏膜通透性的变化并探讨其病理生理机制.方法:采用高效液相色谱蒸发光散射器(HPLC-ELSD)检测30例正常人和30例重度慢性乙型肝炎患者尿中乳果糖和甘露醇排泄率的变化,以尿乳果糖/甘露醇排泄率的比值(L/M)反映肠黏膜通透性的变化.结果:与正常人相比,重度慢性乙型肝炎患者尿乳果糖的排泄率增加(0.0860±0.0225 vs 0.0650±0.0270,P=0.002),尿甘露醇的排泄率无明显变化,而尿乳果糖/甘露醇排泄率的比值(L/M)明显升高(0.0430±0.0198 vs 0.0316±0.0134,P=0.011).结论:重度慢性乙型肝炎患者肠黏膜通透性增高,导致内毒素经肠道途径大量入血,引起内毒素血症,在重度慢性乙型肝炎发生,发展过程中发挥重要的病理生理作用.展开更多
Background Serum sodium predicts prognosis in chronic severe hepatitis B and may improve the prognostic accuracy of the model for end-stage liver disease （MELD） score, but the available information is limited. The p...Background Serum sodium predicts prognosis in chronic severe hepatitis B and may improve the prognostic accuracy of the model for end-stage liver disease （MELD） score, but the available information is limited. The present study was undertaken to study the clinical use of the serum sodium incorporated MELD （MELD-Na） and assess its validity by the concordance （c）-statistics in predicting the prognosis of the patient with chronic severe hepatitis B.Methods A total of 426 adult patients with a diagnosis of chronic severe hepatitis B between January 1, 2007, and December 31, 2007 at a single center were studied. The scores of serum sodium, MELD, MELD-Na, and ΔMELD-Na （ΔMELD-Na=MELD-Na at 14 days after medical treatment -MELD-Na score on admission） of the patients with chronic severe hepatitis B were calculated. The 3-month mortality in the patients was measured, and the validity of the models was determined by means of the concordance （c） statistics.Results The average MELD, MELD-Na scores of survival group were 25.70±5.08 and 26.60±6.90, and those of dead group were 35.60±6.78 and 42.80±9.57 on admission. There was a significant difference in MELD and MELD-Na between the survival and dead groups （P 〈0.01）. The average △MELD-Na score of the survival group was -0.97±3.51, and that of the dead group was 3.45±2.38 at 2 weeks after the treatment. There was a significant difference in △MELD-Na between the survival and dead groups （P 〈0.01）. The areas under the receiver-operating characteristic curves of Na, MELD and MELD-Na for the occurrence of death in 3 months were 0.742, 0.875 and 0.922. The 3-month mortality of the MELD-Na scores group 〈25, 25-30, 31-34, 35-40 and 〉40 were 2.0%, 5.4%, 35.4%, 53.8 % and 86.9%, respectively. There was a significant difference in the 3-month mortality between the five groups （P 〈0.05）. The 3-month mortality of the △MELD-Na〉0 group was 65.9%, and that of the △MELD-Na ≤0 group was 15.8%; there was a significant difference in the展开更多
目的:探讨慢性乙型肝炎患者外周血CD4+CD25+T调节细胞(regulatory T cell,Treg)的变化及其意义.方法:采用流式细胞术对66例乙肝病毒(hepatitis B virus,HBV)感染者和19例健康对照者外周血CD4+CD25+Treg细胞进行检测,并观察CD4+CD25+Tre...目的:探讨慢性乙型肝炎患者外周血CD4+CD25+T调节细胞(regulatory T cell,Treg)的变化及其意义.方法:采用流式细胞术对66例乙肝病毒(hepatitis B virus,HBV)感染者和19例健康对照者外周血CD4+CD25+Treg细胞进行检测,并观察CD4+CD25+Treg细胞与患者总胆红素(total bilirubin,TBIL)、凝血酶原活动度(prothrombin activitv,PTA)和病毒复制指标HBV DNA水平的关系.免疫组化检测叉状头/翅膀状螺旋转录因子(forkhead/winged helix transcription factor,FOXP3)蛋白的表达水平.结果:慢性重型肝炎组CD4+CD25+Treg细胞(4.80±1.50)%分别高于慢性肝炎组(1.67±0.87)%、HBV携带者组(0.53±0.37)%和正常对照组(0.50±0.34)%,(P<0.01);慢性肝炎组与HBV携带者组和正常对照组相比有显著性差异(P<0.01);慢性重型乙型肝炎患者和慢性乙型肝炎患者FOXP3蛋白表达也相应增高,且与CD4+CD25+Treg细胞的变化相平行.CD4+CD25+Treg细胞的变化与TBIL的变化成正相关(r=0.43,P<0.01),与PTA的变化成负相关(r=-0.57,P<0.05),与HBV-DNA水平的变化没有相关性(r=0.22,P>0.05).结论:在慢性乙型肝炎发病过程中,CD4+CD25+Treg细胞水平相应增高,FOXP3蛋白变化与CD4+CD25+Treg细胞的改变相平行.展开更多
文摘目的:研究重度慢性乙型病毒性肝炎患者肠黏膜通透性的变化并探讨其病理生理机制.方法:采用高效液相色谱蒸发光散射器(HPLC-ELSD)检测30例正常人和30例重度慢性乙型肝炎患者尿中乳果糖和甘露醇排泄率的变化,以尿乳果糖/甘露醇排泄率的比值(L/M)反映肠黏膜通透性的变化.结果:与正常人相比,重度慢性乙型肝炎患者尿乳果糖的排泄率增加(0.0860±0.0225 vs 0.0650±0.0270,P=0.002),尿甘露醇的排泄率无明显变化,而尿乳果糖/甘露醇排泄率的比值(L/M)明显升高(0.0430±0.0198 vs 0.0316±0.0134,P=0.011).结论:重度慢性乙型肝炎患者肠黏膜通透性增高,导致内毒素经肠道途径大量入血,引起内毒素血症,在重度慢性乙型肝炎发生,发展过程中发挥重要的病理生理作用.
文摘Background Serum sodium predicts prognosis in chronic severe hepatitis B and may improve the prognostic accuracy of the model for end-stage liver disease （MELD） score, but the available information is limited. The present study was undertaken to study the clinical use of the serum sodium incorporated MELD （MELD-Na） and assess its validity by the concordance （c）-statistics in predicting the prognosis of the patient with chronic severe hepatitis B.Methods A total of 426 adult patients with a diagnosis of chronic severe hepatitis B between January 1, 2007, and December 31, 2007 at a single center were studied. The scores of serum sodium, MELD, MELD-Na, and ΔMELD-Na （ΔMELD-Na=MELD-Na at 14 days after medical treatment -MELD-Na score on admission） of the patients with chronic severe hepatitis B were calculated. The 3-month mortality in the patients was measured, and the validity of the models was determined by means of the concordance （c） statistics.Results The average MELD, MELD-Na scores of survival group were 25.70±5.08 and 26.60±6.90, and those of dead group were 35.60±6.78 and 42.80±9.57 on admission. There was a significant difference in MELD and MELD-Na between the survival and dead groups （P 〈0.01）. The average △MELD-Na score of the survival group was -0.97±3.51, and that of the dead group was 3.45±2.38 at 2 weeks after the treatment. There was a significant difference in △MELD-Na between the survival and dead groups （P 〈0.01）. The areas under the receiver-operating characteristic curves of Na, MELD and MELD-Na for the occurrence of death in 3 months were 0.742, 0.875 and 0.922. The 3-month mortality of the MELD-Na scores group 〈25, 25-30, 31-34, 35-40 and 〉40 were 2.0%, 5.4%, 35.4%, 53.8 % and 86.9%, respectively. There was a significant difference in the 3-month mortality between the five groups （P 〈0.05）. The 3-month mortality of the △MELD-Na〉0 group was 65.9%, and that of the △MELD-Na ≤0 group was 15.8%; there was a significant difference in the
