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1.
Objective Sstudy effect of nuclear factor-κB ASOND on I type collagen expression and rat hepatic stellate cells(HSC)proliferation.Methods Rat HSCs were separated by affusing and digestingof Ⅳ type collagenenzyme and density acentric method.Lipid-mediated NF-κB p65 ASOND(0.001,0.01,0.1,1μmol/L)Was transferred into rat HSCs.Toxicity of HSCs caused by NF-κB p65 ASOND and activity of LDH were determined by trypan blue staining.Proliferation affection of transferring NF-κB p65 ASOND into HSCs was determined by MTT.In different concentration NF-κB p65 ASOND.expression of Ⅰ type collagen stimulated by 1mg/L TNF-αwas determined by RT-PCR and ELISA.Results After transfection of NF-κB p65 ASODN,expression of NF-κB protein in HSCs was decreasing.Toxicity experiment indicated that NF-κB p65 ASOND of different concentration(0.001,0.01,0.1 and 1.0 μmol/L)had no effect on HSCs livability and LDH activity(P<0.05).Four different concentration NF-κ B p65 ASOND could restrain HSCs proliferation stimulated by 1 mg/L TNF-α.The expression of I type collagen and mRNA stimulated by 1mg/LTNF-αwas increased,and had a positive correlation with concentration(P>0.05).Conclusion NF-κB p65 ASOND may depress NF-κB activity to restrain HSCs proliferation and Ⅰ type collagen expression,and reduce extracellular matrix. 相似文献
2.
目的探讨胶囊内镜对小肠腔内隆起性病变的诊断价值。方法计算小肠腔内隆起性病变的例数,描述隆起性病变的特点和分析影响因素,初步判断隆起性病变的性质。结果共发现45处隆起,其中22处证实为隆起性病变,约占隆起总数的48.9%,阴性排除率51.1%;胶囊内镜对体积小的隆起性病变观察清晰,体积、位置和小肠液等因素影响观察效果。结论胶囊内镜对隆起性病变具有较高的指导诊断价值。 相似文献
3.
目的:观察复方聚乙二醇电解质散对胶囊内镜检查前肠道准备的清洁效果和受检者主观感受。方法:共42例受检者,均于检查前1天20:00及检查当天5:00分别服用复方聚乙二醇电解质散,上午8:00开始检查。有便秘史者在检查前1天晚上口服果导片4片。根据清洁效果及受检者的主观感受进行综合分析。结果:全部受检者完成检查,认为能接受和无明显感觉者约占92.9%;回肠中段开始出现较多气泡或/和胆汁者39例。结论:综合清洁效果和受检者的主观感受,认为分两次口服复方聚乙二醇电解质散是比较理想的胶囊内镜检查前的肠道准备方法。 相似文献
4.
[目的]研究法尼酯衍生物X受体(FXR)配体GW4064对HSC-T6细胞系核因子κB(NF-κB)、白细胞介素(IL)-1β及IL-6表达的影响。[方法]实验分为4组:GW4064作用A、B、C组分别应用不同浓度(0.01、0.10、1.00μmol/L)GW4064混合10%热灭活小牛血清的DMEM培养HSC-T6 18h;对照组仅用10%热灭活小牛血清的DMEM培养HSC-T6 18h。应用Western Blot法检测各组NF-κB、IL-1β及IL-6表达的变化。[结果]与对照组比较,GW4064作用各组明显减少NF-κB、IL-1β及IL-6的表达。[结论]GW4064可能通过活化FXR来减弱NF-κB活性,进而减少炎症因子的释放、减轻肝脏炎症损伤、延缓肝纤维化的进展,为FXR配体治疗肝纤维化提供实验依据。 相似文献
5.
目的探讨磷酸化PEA-15蛋白在胃癌组织中的表达情况及其临床意义。方法取新鲜胃癌标本50例,并以50例慢性胃炎组织作对照。运用免疫组织化学的方法检测磷酸化PEA-15蛋白的表达,并观察磷酸化PEA-15蛋白的表达与患者性别、年龄、肿瘤分化程度和临床分期的关系。结果胃癌组织中磷酸化PEA-15蛋白阳性表达增高,而慢性胃炎组织标本未测到(P0.05)。且磷酸化PEA-15蛋白的表达随着胃癌恶性程度增高及临床分期发展而增高(P0.05),而与发病年龄及性别无关(P0.05)。结论磷酸化PEA-15蛋白在胃癌的发生及发展过程中发挥重要作用,调控PEA-15磷酸化状态有望成为胃癌分子治疗的重要靶点。 相似文献
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目的 探讨核因子κB(NF-κB)p65反义寡核苷酸(ASOND)对大鼠肝星状细胞(HSC)增殖和I型胶原表达的影响.方法 Ⅳ型胶原酶消化密度梯度离心法分离培养大鼠HSC;脂质体介导的不同浓度的NF-κB p65 ASOND(0.001、0.01、0.1和1μmol/L)进入HSC;台盼蓝染色排斥法检测NF-κBp65 ASOND对HSC的毒性实验并检测各组乳酸脱氢酶(LDH)活性;MTT法测定NF-κB p65 ASOND对1mg/LTNF-α刺激后HSC增殖影响;RT-PCR法和ELISA法检测不同浓度NF-κB p65 ASOND对1mg/LTNF-α刺激后HSC I型胶原表达的影响.结果 转染NF-κB p65 ASODN后,HSC细胞NF-κB蛋白的表达下降,不同浓度(0.001、0.01、0.1和1 μmol/L)的NF-κB p65 ASOND对于体外培养HSC的存活率和LDH无明显影响(P>0.05),0.01~μmol/L的NF-κB p65 ASOND抑制HSC的增殖,lmg/L TNF-α刺激HSC的I型胶原蛋白和mRNA的表达,且随浓度的增加作用增强(P<0.05).结论 NF-κB p65 ASOND可通过抑制NF-κB活性减少HSC活化增殖及Ⅰ型胶原生成,从而减少细胞外基质的产生. 相似文献
7.
Objective Sstudy effect of nuclear factor-κB ASOND on I type collagen expression and rat hepatic stellate cells(HSC)proliferation.Methods Rat HSCs were separated by affusing and digestingof Ⅳ type collagenenzyme and density acentric method.Lipid-mediated NF-κB p65 ASOND(0.001,0.01,0.1,1μmol/L)Was transferred into rat HSCs.Toxicity of HSCs caused by NF-κB p65 ASOND and activity of LDH were determined by trypan blue staining.Proliferation affection of transferring NF-κB p65 ASOND into HSCs was determined by MTT.In different concentration NF-κB p65 ASOND.expression of Ⅰ type collagen stimulated by 1mg/L TNF-αwas determined by RT-PCR and ELISA.Results After transfection of NF-κB p65 ASODN,expression of NF-κB protein in HSCs was decreasing.Toxicity experiment indicated that NF-κB p65 ASOND of different concentration(0.001,0.01,0.1 and 1.0 μmol/L)had no effect on HSCs livability and LDH activity(P<0.05).Four different concentration NF-κ B p65 ASOND could restrain HSCs proliferation stimulated by 1 mg/L TNF-α.The expression of I type collagen and mRNA stimulated by 1mg/LTNF-αwas increased,and had a positive correlation with concentration(P>0.05).Conclusion NF-κB p65 ASOND may depress NF-κB activity to restrain HSCs proliferation and Ⅰ type collagen expression,and reduce extracellular matrix. 相似文献
8.
核因子-κB(NF-κB)是Sen和Baltimore等(1986)首先发现的一种能够与B细胞免疫球蛋白κ轻链基因的增强子-κB序列特异结合的核蛋白因子,与许多靶基因的转录启动有关,在细胞和生物体生长、分泌、细胞系定向等过程中起非常重要的作用. 相似文献
9.
目的探讨大黄芒硝及硫酸镁治疗急性重症胰腺炎合并麻痹性肠梗阻的临床疗效。方法回顾性分析我院近3年来收治的36例急性重症胰腺炎合并麻痹性肠梗阻患者的临床资料,将患者分为2组,治疗组(20)和对照组(16),比较2组患者的疗效差异。结果对照组16例患者的腹痛、腹胀缓解时间,肠鸣音恢复时间,首次恢复排便时间,血淀粉酶恢复时间,禁食时间及患者住院时间,均明显长于治疗组,经统计学分析,有显著性差异,P〈0.05。而中转手术发生率和死亡率均较低。结论大黄芒硝及硫酸镁治疗急性重症胰腺炎合并麻痹性肠梗阻的疗效确切,值得临床推广使用。 相似文献
10.
Objective Sstudy effect of nuclear factor-κB ASOND on I type collagen expression and rat hepatic stellate cells(HSC)proliferation.Methods Rat HSCs were separated by affusing and digestingof Ⅳ type collagenenzyme and density acentric method.Lipid-mediated NF-κB p65 ASOND(0.001,0.01,0.1,1μmol/L)Was transferred into rat HSCs.Toxicity of HSCs caused by NF-κB p65 ASOND and activity of LDH were determined by trypan blue staining.Proliferation affection of transferring NF-κB p65 ASOND into HSCs was determined by MTT.In different concentration NF-κB p65 ASOND.expression of Ⅰ type collagen stimulated by 1mg/L TNF-αwas determined by RT-PCR and ELISA.Results After transfection of NF-κB p65 ASODN,expression of NF-κB protein in HSCs was decreasing.Toxicity experiment indicated that NF-κB p65 ASOND of different concentration(0.001,0.01,0.1 and 1.0 μmol/L)had no effect on HSCs livability and LDH activity(P<0.05).Four different concentration NF-κ B p65 ASOND could restrain HSCs proliferation stimulated by 1 mg/L TNF-α.The expression of I type collagen and mRNA stimulated by 1mg/LTNF-αwas increased,and had a positive correlation with concentration(P>0.05).Conclusion NF-κB p65 ASOND may depress NF-κB activity to restrain HSCs proliferation and Ⅰ type collagen expression,and reduce extracellular matrix. 相似文献