基于Claudin-2、5及肠黏膜屏障变化探讨健脾清热活血方治疗溃疡性结肠炎临床研究

被引:0
作者
绳荣湍
机构
[1] 广西中医药大学
关键词
溃疡性结肠炎; 健脾清热活血方; Claudin-2; Claudin-5; 肠黏膜屏障;
D O I
暂无
年度学位
2018
学位类型
硕士
导师
摘要
目的:通过观察健脾清热活血方干预脾虚湿热型溃疡性结肠炎患者治疗前后结肠黏膜上皮细胞Claudin-2、Claudin-5表达水平、肠镜评分、黏膜组织学评分和各项症状积分变化,探讨其提高黏膜愈合质量作用机制并评价其临床疗效。方法:研究设计按照随机对照方法,纳入2016年1月至2017年8月期间在我院门诊和病房就诊符合诊断标准的患者50例,用随机数字表法按1:1分为治疗组和对照组。治疗组给予健脾清热活血方(救必应15 g,白术10 g,白芍15 g,水蛭6 g,三七8g,马齿苋12g,炙甘草6 g)口服,对照组给予美沙拉嗪缓释颗粒(艾迪莎)口服,两组均以服药4周为1个疗程,连续服用三个疗程。比较两组治疗前后Baron肠镜评分、黏膜组织学Geboes评分、Claudin-2和Claudin-5表达水平变化及黏膜超微结构改变,联合中医证候积分,综合评价两组疗效。结果:(1)总体疗效:治疗组25例患者中,临床完全缓解4例,显效8例,有效8例,无效5例,总体有效率为80%;对照组25例患者中,临床完全缓解3例,显效6例,有效10例,无效6例,总体有效率为76%;两组患者的总体临床疗效相当(P>0.05)。(2)治疗过程中4周、8周、12周随访评估证候综合积分,提示两组治疗均较治疗前降低(P<0.05),组间比较有显著性差异(P<0.05),提示治疗组在改善临床症状方面优于对照组。(3)治疗12周随访,肠镜评分、肠黏膜组织学评分以及中医症状积分均较治疗前降低(P<0.05),组间比较无显著差异(P>0.05)。治疗前、后Claudin-2平均光密度值比较,提示表达水平显著下调,差异有统计学意义(P<0.05);治疗前、后Claudin-5平均光密度值比较,提示表达水平显著上调,差异有统计学意义(P<0.05)。(4)治疗前电镜下结肠黏膜超微结构显示上皮细胞微绒毛稀疏、排列不规则,细胞器结构不完整且数量较少;治疗后上皮细胞微绒毛密集,排列整齐,细胞器结构基本完整,数量恢复。结论:1、健脾清热活血方治疗脾虚湿热型轻-中度UC与美沙拉嗪缓释颗粒总体疗效上相仿。在改善患者临床症状方面,优于美沙拉嗪缓释颗粒。2、健脾清热活血方可能调节结肠黏膜上皮紧密连接蛋白表达,通过下调Claudin-2、上调Claudin-5的水平,诱导肠黏膜炎症缓解,促进肠黏膜机械屏障的修复愈合,发挥对UC的治疗效用。
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