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沙利度胺对溃疡性结肠炎疗效的实验研究

2016-05-20夏婷婷徐洪雨

中国实用医药 2016年14期
关键词:血清实验模型

夏婷婷+徐洪雨

【摘要】 目的 通过检测大鼠血清中肿瘤坏死因子-α(TNF-α)的浓度, 观察沙利度胺治疗由2, 4, 6-三硝基苯磺酸(TNBS)诱导的溃疡性结肠炎(UC)的疗效。方法 21只TNBS结肠炎动物模型, 随机分为模型组、柳氮磺吡啶组及沙利度胺组, 每组7只。模型组不给予干预、沙利度胺组给予沙利度胺200 mg/(kg·d)、柳氮磺吡啶组给予柳氮磺吡啶100 mg/(kg·d), 测定大鼠血清中TNF-a的浓度, 探讨沙利度胺对UC的疗效。结果 沙利度胺组大鼠腹泻次数减少, 部分有隐血阳性, 一直未出现肉眼血便。沙利度胺组、柳氮磺吡啶组、模型组大鼠TNF-a的浓度分别为(19.51±8.06)、(40.88±14.24)、(115.32±9.60)pg/ml, 沙利度胺组降低血清TNF-α浓度的幅度高于柳氮磺吡啶组, 差异有统计学意义(P<0.01)。结论 沙利度胺治疗UC有效, 能显著减轻结肠炎症, 降低TNF-α浓度强于柳氮磺吡啶。

【关键词】 沙利度胺;柳氮磺吡啶;2, 4, 6-三硝基苯磺酸;溃疡性结肠炎

DOI:10.14163/j.cnki.11-5547/r.2016.14.211

Experimental research of curative effect by thalidomide for ulcerative colitis XIA Ting-ting, XU Hong-yu. Department of Gastroenterology, Hulun Buir City Peoples Hospital, Hulun Buir 021000, China

【Abstract】 Objective To observe curative effect by thalidomide for 2,4,6-trinitro-benzene-sulfonic acid (TNBS)-induced ulcerative colitis (UC) by detecting serum tumor necrosis factor-α (TNF-α) concentration in rats. Methods TNBS colitis animal model was made, and 21 rats were randomly divided into model group, sulfasalazine group and thalidomide group, with 7 rats in each group. No intervention was taken in model group. Thalidomide group received thalidomide by 200 mg/(kg·d), and sulfasalazine group received sulfasalazine by 100 mg/(kg·d). Detection was made on serum TNF-α concentration to investigate curative effect by thalidomide for UC. Results Thalidomide group had reduced diarrhea times, and some rats had positive occult blood, without any visible bloody stools. TNF-α concentrations in thalidomide group, sulfasalazine group and model group were respectively (19.51±8.06), (40.88±14.24), (115.32±9.60) pg/ml. Thalidomide group had higher reducing degree of serum TNF-α concentration than sulfasalazine group, and the difference had statistical significance (P<0.01). Conclusion Thalidomide is effective in treating UC, and it can remarkably relieve colitis. It shows better effect in reducing TNF-α concentration than sulfasalazine.

【Key words】 Thalidomide; Sulfasalazine; 2,4,6-trinitro-benzene-sulfonic acid; Ulcerative colitis

UC是一种病因不明的直肠和结肠慢性非特异性炎症性疾病。其病因和发病机制尚不清楚, 目前大多学者认为免疫异常是其发病的主要原因, 受到国内外学者们的重视, 已经成为临床研究的重点之一, 随着对细胞因子研究的进展, 人们发现细胞因子TNF-α与UC的发病密切相关。沙利度胺作为一种免疫调节剂, 目前认为是肿瘤坏死因子TNF-α的特异性调节药物, 所以沙利度胺可通过抑制这种因子的作用而治疗UC。本研究通过研究治疗前后UC大鼠的血清中TNF-α的表达情况, 进而探讨沙利度胺治疗UC的疗效, 及肿瘤坏死因子在发病机制中的作用及临床意义, 现报告如下。

1 材料与方法

1. 1 材料

1. 1. 1 实验动物清洁及健康成年雄Wistar大鼠, 平均体质量(250±20)g, 由哈尔滨医科大学动物实验中心提供及饲养。……

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