目的:研究三叶因子3(trefoil factor 3,TFF3)基因在三硝基苯磺酸(TNBS)诱发的大鼠结肠炎肠黏膜表达的变化,探讨其在结肠炎发生发展中的作用. 方法:采用TNBS/乙醇灌肠制作大鼠结肠炎模型(n=15), 观察大鼠腹泻、便血情况,评价疾病活动性指...目的:研究三叶因子3(trefoil factor 3,TFF3)基因在三硝基苯磺酸(TNBS)诱发的大鼠结肠炎肠黏膜表达的变化,探讨其在结肠炎发生发展中的作用. 方法:采用TNBS/乙醇灌肠制作大鼠结肠炎模型(n=15), 观察大鼠腹泻、便血情况,评价疾病活动性指数(DAI)并记录体重改变,分别于制模后1,7及14d处死大鼠.生理盐水灌肠作为正常对照组.大体及镜下观察肠黏膜损伤及组织学变化,并进行评分.生化法检测MPO活性.逆转录-多聚酶链反应(RT-PCR)检测TFF3基因表达. 结果:结肠炎组1,7及14d时间点DAI(3.8±0.5 vs 0, 3.3±0.5 vs 0,2.3±0.5 vs 0)、体质量(-3.2±0.7 vs 4.7±2.2, -7.2±2.0 vs 10.9±0.2,2.9±0.4 vs 30.5±2.9)、大体评分(7.2±0.9 vs 0,6.2±1.3 vs 0,4.6±0.5 vs 0)和组织学评分(8.2±1.2 vs 0,10.4±0.5 vs 0,8.4±0.5 vs 0)以及MPO活性(1745±55 vs 303±21,1789±77 vs 315±20,1736±127 vs 313±35)较正常对照组均存在显著差异(P<0.05).TFF3在结肠组织炎症的各个时间点均有表达,致炎后1d组较正常对照组减少,7和14 d组明显升高(0.63±0.05 vs 0.72±0.02, 0.94±0.19 vs 0.72±0.02.1.25±0.74 vs 0.72±0.02.P<0.05). 结论:TNBS诱发的大鼠结肠炎有TFF3基因的表达,提示TFF3在结肠炎黏膜损伤修复中发挥作用.展开更多
To compare the clinical and pathological manifestations of patients with antineutrophil cytoplasmic autoantibodies (ANCA) directed against proteinas e 3 (anti PR3) or myeloperoxidase (anti MPO). Methods. One hundred a...To compare the clinical and pathological manifestations of patients with antineutrophil cytoplasmic autoantibodies (ANCA) directed against proteinas e 3 (anti PR3) or myeloperoxidase (anti MPO). Methods. One hundred and forty patients with ANCA were detected for anti PR3 a nd anti MPO by ELISA. The clinical features at presentation, histopathological characteristics and outcome of all patients who were tested positive for anti P R3 or anti MPO were analysed.Results. In anti PR3 group (n=21), 16 cases (76.2%) had systemic vasculitis , in which Wegener’s granulomatosis prevailed (13 cases, 61.9%). In anti MPO g roup (n=31), 19 cases (61.3%) were diagnosed as systemic vasculitis and 12 case s (38.7%) as microscopic angiitis. For vasculitic patients with anti PR3 and a nti MPO, the disease duration at diagnosis was 9.6±2.0m and 4.4±0.9m respecti vely, P< 0.05;vasculitis activity index (BVAS) and mean number of affected organ were 22.5±2.1, 5.0±0.4 and 25.1±1.7, 4.8±0.4 respectively, P >0.05;upper r espiratory tract, eye and joint involvements were 11(68.8%), 7(43.8%), 11(68.8 %) and 7(36.8%), 2(10.5%), 5(26.3%) respectively, P< 0.05.Although there was no statistical difference in renal involvement between these two groups, patien ts with serum creatine >500 μmol/L were more commonly seen in anti MPO group t han in anti PR3 group, which were 8(42.1%) and 2(12.5%) respectively, P< 0.05 . Ten relapses were seen in anti PR3 group and only 2 in anti MPO group, but t he acute mortality rate in anti MPO group (5/19, 27.4%) was much higher than t hat in anti PR3 group (1/16, 6.3%). Conclusions. Anti PR3 and anti MPO occurred mainly in systemic vasculitis. A large divergence was seen in the disease spectrum between patients with anti PR 3 and those with anti MPO. In particular, upper respiratory tract, eye and join t involvements, granuloma formation and relapse were more prominent in anti PR3 patients. By contrast, the anti MPO patients had a more acute disease onset, m ore rapid progressive renal involvement and a higher acute mortality rate.展开更多
目的:探讨半乳糖凝集素-3(Gal-3)、髓过氧化物酶(MPO)、粒细胞-巨噬细胞集落刺激因子(GM-CSF)和转化生长因子-β1(TGF-β1)在不同阶段哮喘患儿支气管肺泡灌洗液中水平变化及临床指导意义。方法:选择我院2016年3月至2017年6月接诊的114...目的:探讨半乳糖凝集素-3(Gal-3)、髓过氧化物酶(MPO)、粒细胞-巨噬细胞集落刺激因子(GM-CSF)和转化生长因子-β1(TGF-β1)在不同阶段哮喘患儿支气管肺泡灌洗液中水平变化及临床指导意义。方法:选择我院2016年3月至2017年6月接诊的114例哮喘患儿(观察组)和36例非哮喘患儿(对照组)的BALF作为研究标本,分别测定细胞总数和分类计数以及Gal-3、MPO、GM-CSF和TGF-β1水平,并进行对比分析。结果:轻度和中重度患儿组与对照组支气管肺泡灌洗液中的TCS、巨噬细胞比较差异无统计学意义(P>0.05),中粒细胞、嗜酸性粒细胞和上皮细胞数差异具有统计学意义(P<0.05);轻度和中重度组中性粒细胞、嗜酸性粒细胞和上皮细胞数差异具有统计学意义(P<0.05);观察组患儿支气管肺泡灌洗液Gal-3、MPO、GM-CSF、TGF-β1表达水平高于对照组[3.59±0.49 vs 10.27±3.89]、[13.82±3.54 vs 21.03±7.05]、[123.07±25.68vs154.82±36.44]、[121.68±7.98vs221.59±44.12];中重度组患儿支气管肺泡灌洗液Gal-3、MPO、GM-CSF、TGF-β1表达水平高于轻度组[6.91±1.43 vs14.42±3.17]、[15.52±4.42 vs25.18±9.73]、[129.53±30.42vs164.78±34.03]、[171.35±21.48vs240.83±34.08];不同阶段哮喘患儿的支气管肺泡灌洗液中Gal-3与MPO、GM-CSF和TGF-β1的表达水平之前存在正相关关系。结论:哮喘患儿BALF中Gal-3、MPO、GM-CSF、TGF-β1的水平变化与病情密切相关,可作为监测哮喘病症发展的有效指标。展开更多
文摘目的:研究三叶因子3(trefoil factor 3,TFF3)基因在三硝基苯磺酸(TNBS)诱发的大鼠结肠炎肠黏膜表达的变化,探讨其在结肠炎发生发展中的作用. 方法:采用TNBS/乙醇灌肠制作大鼠结肠炎模型(n=15), 观察大鼠腹泻、便血情况,评价疾病活动性指数(DAI)并记录体重改变,分别于制模后1,7及14d处死大鼠.生理盐水灌肠作为正常对照组.大体及镜下观察肠黏膜损伤及组织学变化,并进行评分.生化法检测MPO活性.逆转录-多聚酶链反应(RT-PCR)检测TFF3基因表达. 结果:结肠炎组1,7及14d时间点DAI(3.8±0.5 vs 0, 3.3±0.5 vs 0,2.3±0.5 vs 0)、体质量(-3.2±0.7 vs 4.7±2.2, -7.2±2.0 vs 10.9±0.2,2.9±0.4 vs 30.5±2.9)、大体评分(7.2±0.9 vs 0,6.2±1.3 vs 0,4.6±0.5 vs 0)和组织学评分(8.2±1.2 vs 0,10.4±0.5 vs 0,8.4±0.5 vs 0)以及MPO活性(1745±55 vs 303±21,1789±77 vs 315±20,1736±127 vs 313±35)较正常对照组均存在显著差异(P<0.05).TFF3在结肠组织炎症的各个时间点均有表达,致炎后1d组较正常对照组减少,7和14 d组明显升高(0.63±0.05 vs 0.72±0.02, 0.94±0.19 vs 0.72±0.02.1.25±0.74 vs 0.72±0.02.P<0.05). 结论:TNBS诱发的大鼠结肠炎有TFF3基因的表达,提示TFF3在结肠炎黏膜损伤修复中发挥作用.
文摘目的探讨检测血清抗髓过氧化物酶抗体(MPO抗体)、抗蛋白酶3抗体(PR3抗体)和抗肾小球基底膜抗体(GBM抗体)对自身免疫性血管炎(AAV)的临床意义。方法符合诊断标准的AAV患者分为3组:微型多血管炎组(microscopic polyangiitis,MPA)11例、肉芽肿性多血管炎组(granulomatosis with polyangiitis,GPA)11例和嗜酸性肉芽肿性血管炎组(eosinophilic granulomatosis with polyangiitis EGPA)11例,体检健康者50例作为对照组,采用间接免疫荧光法测定血清MPO抗体,PR3抗体,GBM抗体。结果 AAV各组与对照组比较,血清MPO抗体水平显著升高(P<0.05);MPA组和GPA组与对照组比较,血清PR3抗体水平显著升高(P<0.05);MPA和EGPA与对照组比较,血清GBM抗体水平显著升高(P<0.05)。结论 MPO抗体、PR3抗体、GBM抗体的联合检测对AAV的类型诊断有参考价值。
文摘To compare the clinical and pathological manifestations of patients with antineutrophil cytoplasmic autoantibodies (ANCA) directed against proteinas e 3 (anti PR3) or myeloperoxidase (anti MPO). Methods. One hundred and forty patients with ANCA were detected for anti PR3 a nd anti MPO by ELISA. The clinical features at presentation, histopathological characteristics and outcome of all patients who were tested positive for anti P R3 or anti MPO were analysed.Results. In anti PR3 group (n=21), 16 cases (76.2%) had systemic vasculitis , in which Wegener’s granulomatosis prevailed (13 cases, 61.9%). In anti MPO g roup (n=31), 19 cases (61.3%) were diagnosed as systemic vasculitis and 12 case s (38.7%) as microscopic angiitis. For vasculitic patients with anti PR3 and a nti MPO, the disease duration at diagnosis was 9.6±2.0m and 4.4±0.9m respecti vely, P< 0.05;vasculitis activity index (BVAS) and mean number of affected organ were 22.5±2.1, 5.0±0.4 and 25.1±1.7, 4.8±0.4 respectively, P >0.05;upper r espiratory tract, eye and joint involvements were 11(68.8%), 7(43.8%), 11(68.8 %) and 7(36.8%), 2(10.5%), 5(26.3%) respectively, P< 0.05.Although there was no statistical difference in renal involvement between these two groups, patien ts with serum creatine >500 μmol/L were more commonly seen in anti MPO group t han in anti PR3 group, which were 8(42.1%) and 2(12.5%) respectively, P< 0.05 . Ten relapses were seen in anti PR3 group and only 2 in anti MPO group, but t he acute mortality rate in anti MPO group (5/19, 27.4%) was much higher than t hat in anti PR3 group (1/16, 6.3%). Conclusions. Anti PR3 and anti MPO occurred mainly in systemic vasculitis. A large divergence was seen in the disease spectrum between patients with anti PR 3 and those with anti MPO. In particular, upper respiratory tract, eye and join t involvements, granuloma formation and relapse were more prominent in anti PR3 patients. By contrast, the anti MPO patients had a more acute disease onset, m ore rapid progressive renal involvement and a higher acute mortality rate.
文摘目的:探讨半乳糖凝集素-3(Gal-3)、髓过氧化物酶(MPO)、粒细胞-巨噬细胞集落刺激因子(GM-CSF)和转化生长因子-β1(TGF-β1)在不同阶段哮喘患儿支气管肺泡灌洗液中水平变化及临床指导意义。方法:选择我院2016年3月至2017年6月接诊的114例哮喘患儿(观察组)和36例非哮喘患儿(对照组)的BALF作为研究标本,分别测定细胞总数和分类计数以及Gal-3、MPO、GM-CSF和TGF-β1水平,并进行对比分析。结果:轻度和中重度患儿组与对照组支气管肺泡灌洗液中的TCS、巨噬细胞比较差异无统计学意义(P>0.05),中粒细胞、嗜酸性粒细胞和上皮细胞数差异具有统计学意义(P<0.05);轻度和中重度组中性粒细胞、嗜酸性粒细胞和上皮细胞数差异具有统计学意义(P<0.05);观察组患儿支气管肺泡灌洗液Gal-3、MPO、GM-CSF、TGF-β1表达水平高于对照组[3.59±0.49 vs 10.27±3.89]、[13.82±3.54 vs 21.03±7.05]、[123.07±25.68vs154.82±36.44]、[121.68±7.98vs221.59±44.12];中重度组患儿支气管肺泡灌洗液Gal-3、MPO、GM-CSF、TGF-β1表达水平高于轻度组[6.91±1.43 vs14.42±3.17]、[15.52±4.42 vs25.18±9.73]、[129.53±30.42vs164.78±34.03]、[171.35±21.48vs240.83±34.08];不同阶段哮喘患儿的支气管肺泡灌洗液中Gal-3与MPO、GM-CSF和TGF-β1的表达水平之前存在正相关关系。结论:哮喘患儿BALF中Gal-3、MPO、GM-CSF、TGF-β1的水平变化与病情密切相关,可作为监测哮喘病症发展的有效指标。
