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生物活性肽调节肠黏膜免疫功能和结构的meta分析

2018-09-13印虹吴雅桐

科技视界 2018年14期
关键词:Meta分析

印虹 吴雅桐

【摘 要】目的:通过meta分析的方法探究国内外生物活性肽对肠黏膜免疫调节作用的相关文献,综合分析生物活性肽调节肠黏膜免疫作用机制以及对机体肠黏膜结构的综合影响,从而能为生物活性肽对机体肠黏膜免疫健康的促进作用提供有力根据。方法:应用计算机在扬州大学图书馆检索数据库包括万方数据库、SCI、CNKI数据库、Web of Science、EBSCO等,收集国内外关于生物活性肽对肠黏膜免疫作用的研究,根据生物活性肽对SIgA的浓度变化以及对肠绒毛长度和隱窝深度影响的指标数据,将筛选出符合的文献进行数据的合并处理,并利用StataSE12.0进行meta分析。结果:经过文献检索与筛选,共找到相关文献21篇,其中有10篇有效文献符合meta分析要求,得到总的样本量为196,meta分析结果表明:在肠黏膜免疫功能和结构的研究中,对于SIgA浓度变化指标,[SMD=2.643,95%CI=(2.003,3.282),P<0.05];对于肠绒毛长度/隐窝深度(V/C)指标,[SMD=2.701,95%CI=(1.891,3.512),P<0.05],说明实验组与对照组间的差异具有统计学意义。结论:生物活性肽对肠道SIgA有一定促分泌作用,同时能够增加肠绒毛长度改善肠黏膜结构。因而在促进肠黏膜免疫、改善肠道黏膜结构、减少肠道有害菌群数量和增强肠道生物屏障方面,生物活性肽具有一定的积极作用。

【关键词】meta分析;生物活性肽;黏膜免疫;肠黏膜结构

中图分类号: R151 文献标识码: A 文章编号: 2095-2457(2018)14-0113-003

DOI:10.19694/j.cnki.issn2095-2457.2018.14.050

Meta analysis of bioactive peptides regulating intestinal mucosal immune function and structure

YIN Hong WU Ya-tong

(Department of cooking and nutrition, School of tourism and cuisine, Yangzhou University, Yangzhou, Jiangsu, 225000, China)

【Abstract】Objective: To investigate the immunoregulatory effects of bioactive peptides on intestinal mucosa at home and abroad by meta-analysis, and to analyze the mechanism of bioactive peptides to regulate intestinal mucosal immune function and the combined effect of intestinal mucosal structure Effectively for the bioactive peptides on the body's intestinal mucosal immune health promotion to provide a strong basis. And ultimately through the application of bioactive peptides to improve intestinal flora, intestinal mucosal immune to enhance the purpose of promoting the health of the body. Methods: The database of Yangzhou University Library, including Wanfang database, SCI, CNKI database, Web of Science and EBSCO, was used to search the database of bioactive peptides. The bioactive peptides were used to study the effect of bioactive peptides on SIgA Concentration changes and the impact of intestinal length and crypt depth of the index data, will be screened to meet the literature for data processing, and the use of StataSE12.0 meta analysis. Results: 21 literatures were searched and screened. Among them, 10 valid literatures met meta-analysis requirements, and the total sample size was 196. The meta-analysis showed that in the study of intestinal mucosal immune function and structure, For SMG=2.643,95%CI=(2.003,3.282),P<0.05]; for intestinal villus length/crypt depth (V/C), [SMD=2.701,95%CI=(1.891,3.512),P<0.05), indicating that the difference between the experimental group and the control group was statistically significant. Conclusion: Bioactive peptides have a certain secretory effect on intestinal SIgA, and can increase the length of intestinal villus to improve intestinal mucosal structure. Therefore, bioactive peptides have a positive effect in promoting intestinal mucosal immunity, improving intestinal mucosal structure, reducing the number of harmful intestinal flora and enhancing intestinal barrier.

【Key words】Meta-analysis; Bioactive peptides; Mucosal immunity; Intestinal mucosal

0 引言

生物活性肽是一类对机体有许多重要生理功能的物质[1]。大量研究表明, 生物活性肽在促进动物的胃肠道发育和成熟、促进蛋白质合成与肌肉生长、增强机体免疫力等方面均发挥显著的作用[2]。活性肽具有多种人体代谢和生理调节功能,易于消化吸收,有增进免疫、调节激素、抗菌、抗病毒、降血压、降血脂等作用,食用安全性极高,是当前国际食品界最热门的研究课题和极具发展前景的功能因子。

活性肽的分类可按原料、保健功能和来源来划分[3]。……

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