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目的 探讨血清干扰素-γ(IFN-γ)、白细胞介素-4(IL-4)和IL-10水平对乙型肝炎病毒(HBV)母婴传播的影响。方法 2017年8月~2019年7月我院诊治的126例血清HBsAg阳性孕妇和55例健康孕妇,采用ELISA法检测孕妇和新生儿血清IFN-γ、IL-4、IL-10水平。采用受试者工作特征(ROC)曲线和Logistic回归模型分析孕妇外周静脉血细胞因子水平对HBV母婴传播的影响。结果 本组发生HBV宫内感染15例,自宫内未感染者中选择30例作为对照,结果宫内感染组孕妇外周静脉血IFN-γ水平为(681.3±141.6)pg/ml,IL-10水平为(62.3±11.4)pg/ml,显著低于宫内未感染组【分别为(992.6±192.3)pg/ml和(68.5±12.8)pg/ml】或对照组【分别为(1040.4±48.1)pg/ml和(73.7±2.6)pg/ml,P<0.05】,而血清IL-4水平为(68.1±22.9)ng/L,显著高于宫内感染组或对照组【分别为(49.2±15.3)ng/L和(38.9±7.2)ng/L,P<0.05】;三组新生儿脐静脉血三个细胞因子水平无显著性差异(P>0.05);ROC分析显示,孕妇外周静脉血IFN-γ预测HBV母婴传播的曲线下面积(AUC)为0.877(95%CI:0.810~0.945),诊断的截断点为≤782.36 pg/ml,其敏感度为100.0%,特异度为69.4%。结论 HBV感染孕妇存在免疫功能调节紊乱,检测血清IFNγ、IL-4和IL-10等细胞因子水平可作为评估HBV母婴传播的观察指标,能为临床确定防治措施提供参考信息。 相似文献
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Objective To investgate the effects of TGF β 3 on rat hepatic fibrosis. Methods The TGF β 3 cDNA was cloned into rAAV2 vector. Rats were randomly divided into four groups: normal control group, model group, negative control group and TGF β 3 group. Hepatic fibrosis was induced by hypodermic injection of 40% CCI4. Recombinant AAV2-TGF β 3 viral particles were injected via the vena caudalis one week before CCh treatment. Rats were executed 8 weeks after CCI4 treatment, global histological change was observed after HE staining, the distribution of the collagen fibers was observed after masson staining, his-tochemistry was done to observe the expression of collagen Ⅰ; The positive area rate of the collagen fibers and the average optical rate of collagen Ⅰ were quantified. Results HE staining indicated that collagen fibers were reduced in the TGF β 3 group. Masson staining shown that the collagen fibers were distributed around the blood vessel, in the portal area and disse space. Compared to the model group (13.2%±2.2%) and negative control group (12.3%±1.5%), the collagen fibers in liver tissues of TGF β3 group (7.7% ± 1.5%) were significantly decreased (q = 9.456, P < 0.01; q = 8.217, P < 0.01). Histochemistry indicated that the collagen fibers of liver tissues of TGF 15 3 group (0.185±0.033) were significantly higher than those in the model group (0.252±0.042) and the negative control group (0.230±0.029), (q = 6.228, P < 0.01; q = 4.346, P < 0.01). Conclusion TGF β 3 alleviates the damage to hepatic cell and the level offibrosis in CCI4 treated rats and inhibits the expression of collagen Ⅰ. 相似文献
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目的:探讨真空成型的压膜保持器(VFR)对改善种植修复体邻接触丧失的临床效果.方法:选择湖北省中医院2019年6月—2020年10月接受后牙种植单冠修复(均采用Straumann种植体)患者58例.根据临床随机病例对照研究分为2组,每组29例,合计116个种植单冠邻接面.实验组白天不配戴压膜保持器,夜间配戴;对照组白天... 相似文献
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目的观察转化生长因子D3基因(TGFβ3)对大鼠肝星状细胞株(HSC—T6)Ⅰ型胶原合成的影响。方法TGFβ3表达质粒[pcDNA3.1(+)-TGFβ31和TGFβ1表达质粒[pcDNA3.1(+)-TGFD11的构建。通过脂质体介导方法,将pcDNA3.1(+)-TGFβ1、pcDNA3.1(+)-TGFβ3分别及共同转染体外培养的HSC—T6细胞,荧光定量PCR法及Westernblot法分别检测转染后TGFβ1、TGFD3、Ⅰ型胶原mRNA及蛋白质的表达。将pcDNA3.1(+)-TGFD1转染HSC—T6细胞,经G418筛选建立高表达TGFD1的HSC~T6细胞克隆,pcDNA3.1(+)-TGFD3转染克隆细胞,荧光定量PCR法检测转染后TGFβ3、TGFβ1及Ⅰ型胶原mRNA的表达,Westernblot法检测TGFβ1、Ⅰ型胶原蛋白的表达情况。结果构建的pcDNA3.1(+)TGFD3、pcDNA3.1(+)-TGFD1质粒可转染HSC—T6细胞,转染率28.2%。pcDNA3.1(+)TGF侈3转染细胞后,Ⅰ型胶原mRNA及蛋白的表达较空白组及对照组增加,以72h增高最为明显(P〈0.05);共转染组Ⅰ型胶原mRNA及蛋白质的表达较pcDNA3.1(+)-TGFβ1转染组明显降低(P〈0.05)。TGF侈3转染克隆细胞后,TGFD1mRNA表达较克隆组无明显改变(P〉0.05),而蛋白质表达明显下降(P〈0.05),Ⅰ型胶原mRNA及蛋白质表达均较克隆组明显降低(P〈0.05)。结论TGFD3基因转染正常培养的HSC—T6细胞,增加Ⅰ型胶原的表达;转染高表达TGFβ1的克隆组HSC—T6细胞,Ⅰ型胶原表达明显降低,提示TGFβ3对肝纤维化的发生有抑制作用。 相似文献
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保肝药物在非酒精性脂肪性肝病中的应用 总被引:1,自引:0,他引:1
对于非酒精性脂肪性肝病(NAFLD),采用能够直接减轻或逆转肝损害的药物治疗也是合理的选择,但目前尚无一种特效的保肝药物.多数保肝药物仅起到辅助和对症的作用。保肝药物在NAFLD治疗中的作用,主要是纠正代谢障碍、稳定肝细胞膜、抗炎、抗纤维化以阻止肝病进展。药物的作用包括:促进肝细胞再生、协助肝细胞解毒、祛除肝内过多脂肪和改善肝组织代谢等。 相似文献
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