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消化性溃疡患者外周血单个核细胞Toll样受体4的表达及TNF-α水平的研究

Progress in Modern Biomedicine(2013)

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Abstract
目的:研究消化性溃疡患者Toll样受体4的表达及血清TNF-α浓度水平,探讨其与幽门螺杆菌感染的关系。方法:选取24例幽门螺杆菌(helicobacter.pylori,HP)阳性和16例HP阴性消化性溃疡患者,分别运用半定量PCR(Semi-quantitative RT-PCR)法、酶联免疫吸附测定(enzyme-linked immuno sorbent assay,ELISA)法测定其外周血单个核细胞(peripheral blood mononuclearcells,PBMCs)Toll样受体4的表达及血清TNF-α浓度。结果:HP阳性和HP阴性消化性溃疡患者PBMCs中均有TLR-4 mRNA的表达,HP阳性患者PBMCs TLR-4 mRNA的表达显著高于HP阴性组患者(P<0.0l),HP阳性组患者血清TNF-α水平亦显著高于HP阴性组患者(P<0.0l),TLR-4 mRNA表达水平与血清TNF-α水平呈正相关(r=0.21,p=0.02)。结论:HP阳性消化性溃疡患者外周血单个核细胞TLR-4 mRNA表达水平上调,血清TNF-α水平也同步升高,TLR4与HP感染所致消化性溃疡病理过程密切相关。
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Key words
Peptic ulcer,TNF-α,HP,TLR-4
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