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Expression of interleukin 18 in intestinal mucosa of patients with inflammatory bowel disease and its implications
Author(s): 
Pages: 150-153
Year: Issue:  2
Journal: JOURNAL OF PEKING UNIVERSITY(HEALTH SCIENCES)

Keyword:  白细胞介素-18Crohn病结肠炎溃疡性炎症性肠病;
Abstract: 目的: 探讨炎症性肠病患者肠黏膜白细胞介素18 (IL-18) 的表达及与疾病活动性的关系.方法:活动期克罗恩病(CD)和溃疡性结肠炎(UC)患者分别为23例和20例,其中CD 9例、UC 11例经药物(SASP或SASP+糖皮质激素)治疗后达缓解期;20例对照来自于非炎症性肠病患者手术切除之正常结肠组织.采用半定量RT-PCR检测肠黏膜IL-18 mRNA表达,免疫组化方法原位检测肠黏膜组织中IL-18蛋白表达量.结果:活动期CD患者肠黏膜IL-18mRNA表达显著高于活动期UC和对照组,活动期UC与对照组比较差异无显著性.免疫组化显示肠黏膜上皮细胞和固有层单个核细胞(主要是巨噬细胞和树突状细胞)表达IL-18;活动期CD患者表达量显著高于活动期UC和对照,活动期UC与对照比较差异无显著性;缓解期CD患者IL-18表达与活动期相比显著下降,UC患者IL-18表达下降则差异无显著性.结论:IL-18参与了炎症性肠病的发病过程,并与CD活动有关.
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