二甲双胍与美沙拉嗪在小鼠结肠炎中的疗效比较
Copy editor: 杨江瑜
收稿日期: 2021-03-05
网络出版日期: 2021-09-10
基金资助
国家自然科学基金(81770529)
版权
Comparison of efficacy between metformin and mesalazine in treatment of experimental colitis in mouse models
Received date: 2021-03-05
Online published: 2021-09-10
Copyright
目的 探讨二甲双胍与美沙拉嗪在治疗小鼠结肠炎中的疗效差异性。方法 选取6 ~ 8周龄的C57BL/6雄性小鼠32只,随机分为Control组、硫酸葡聚糖(DSS)组、DSS+美沙拉嗪组、DSS+二甲双胍组,每组8只。Control组小鼠自由饮用高压灭菌双蒸水,并每日予0.2 ml 磷酸盐缓冲液(PBS)灌胃。采用3%DSS诱导C57BL/6雄性小鼠结肠炎模型。DSS组小鼠自由饮用3%DSS溶液,每日予0.2 ml PBS灌胃,DSS+美沙拉嗪组、DSS+二甲双胍组自由饮用3%DSS溶液,予100 mg/(kg·d) 的美沙拉嗪或100 mg/(kg·d) 二甲双胍灌胃。评估各组小鼠体质量变化、结肠长度、疾病活动指数、组织病理学改变及肠道炎症因子表达情况。结果 与DSS组相比,DSS+二甲双胍与DSS+美沙拉嗪组均可降低小鼠结肠炎所致的体质量丢失、疾病活动度评分、组织病理学评分及肠道炎症因子表达水平(P均< 0.05),但DSS+二甲双胍组与DSS+美沙拉嗪组上述指标比较差异均无统计学意义(P均> 0.05)。结论 二甲双胍可以减轻DSS诱导的小鼠结肠炎,其疗效不亚于美沙拉嗪。
邓钧 , 曾丽珊 , 刘乐 , 陈烨 . 二甲双胍与美沙拉嗪在小鼠结肠炎中的疗效比较[J]. 新医学, 2021 , 52(8) : 566 -571 . DOI: 10.3969/j.issn.0253-9802.2021.08.003
Objective To compare the efficacy between metformin and mesalazine in the treatment of experimental colitis in mouse models. Methods Thirty-two C57BL/6 male mice aged 6-8 weeks were randomly divided into the control, dextran sulphate sodium (DSS), DSS+mesalazine and DSS+metformin groups, with 8 animals in each group. In the control group, the animals were given ad libitum access to autoclaved double-distilled water and oral gavage of 0.2 ml PBS daily. C57BL/6 male mouse models were induced by 3% DSS. In the DSS group, the mice were given ad libitum access to 3% DSS and oral gavage of 0.2 ml PBS daily. In the DSS+mesalazine and DSS+metformin groups, the animals were given ad libitum access to 3% DSS, and oral gavage of 100 mg/(kg·d) mesalazine or metformin. The body weight, colon length, disease activity index (DAI), histopathological changes and the expression levels of pro-inflammatory cytokines were evaluated in each group. Results Compared with the DSS group, mice treated with DSS+metformin or DSS+mesalazine experienced significantly less body weight loss,lower DAI scores, lower histopathological scores and lower expression levels of pro-inflammatory cytokines(all P < 0.05). No significant difference was noted between the metformin and mesalazine groups(all P > 0.05). Conclusion Metformin can ameliorate DSS-induced experimental colitis in mice, which yields equivalent efficacy to that of mesalazine.
Key words: Colitis; Metformin; Mesalazine; Efficacy
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