海马内注射鸢尾素缓解小鼠抑郁样行为

doi:10.16352/j.issn.1001-6325.2022.12.1850

基础医学与临床 ›› 2022, Vol. 42 ›› Issue (12): 1850-1854.doi: 10.16352/j.issn.1001-6325.2022.12.1850

海马内注射鸢尾素缓解小鼠抑郁样行为

李晶¹, 黄炳轩², 许琪^1*

1.中国医学科学院基础医学研究所北京协和医学院基础学院生物化学与分子生物学系国家医学分子生物学重点实验室,北京 100005;
2.北京市第一六六中学,北京 100006

收稿日期:2022-04-02 修回日期:2022-06-28 出版日期:2022-12-05 发布日期:2022-11-23
通讯作者: ^* xuqi@pumc.edu.cn
基金资助:
科技部国家重点研发计划 (2020YFA0804500,2020YFA0804502)

Intrahippocampal injection of irisin ameliorates depression-like behaviors in mice

LI Jing¹, HUANG Bing-xuan², XU Qi^1*

1. Department of Biochemistry and Molecular Biology, Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences CAMS, School of Basic Medicine PUMC, Beijing 100005;
2. Beijing No. 166 High School, Beijing 100006, China

Received:2022-04-02 Revised:2022-06-28 Online:2022-12-05 Published:2022-11-23
Contact: ^* xuqi@pumc.edu.cn

摘要/Abstract

摘要： 目的探讨鸢尾素对抑郁症模型小鼠抑郁样行为的影响。方法将 C57BL/6 小鼠随机分成模型组和健康组,模型组采用开放空间强迫游泳 (OSFS) 方法建立抑郁小鼠模型,造模成功后将造模组随机分成“模型-对照”组和“模型-鸢尾素”组。健康野生小鼠正常饲养,同样随机分为“健康-对照”组和“健康-鸢尾素”组。所有鸢尾素组小鼠通过脑立体定位注射向两侧海马分别注射77 pmol鸢尾素,对照组注射同体积的溶剂 (PBS)。利用强迫游泳及悬尾检测等实验对其抑郁样行为进行检测。结果与健康组比较,抑郁模型组小鼠在强迫游泳测试 (P＜0.01) 及悬尾测试 (P＜0.05) 中的不动时间显著延长,证明成功模拟了抑郁症患者的绝望样行为,模型构建成功。与“模型-对照”组相比,鸢尾素可显著缩短“模型-鸢尾素”组小鼠在强迫游泳实验 (P＜0.001) 及悬尾实验 (P＜0.05) 中的不动时间。结论鸢尾素可显著改善开放空间强迫游泳抑郁模型小鼠的抑郁样行为。

关键词: 鸢尾素, 抑郁症, 体育运动, 抗抑郁

Abstract: Objective To investigate the effects of irisin on the depression-like behaviors in depression mice. Methods C57BL/6 mice were randomly divided into model and healthy groups. Mice in the model group were trained by open-space forced swim (OSFS) model and then were sub-divided into “model-control” and “model-irisin”. Healthy wild mice were bred normally and sub-divided into “healthy-control” and “healthy-irisin”groups. All mice in test group and in control groups were injected with 77 pmol irisin or the solvent (PBS) into both hippocampi by brain stereotactic injection, respectively. Depression-like behaviors were examined by forced swim test (FST) and tail suspension test (TST). Results Compared with the healthy ones, the model mice showed a markedly prolonged immobility time in FST(P＜0.01) and TST(P＜0.05), which indicated that the successfully established model can simulate the despair-like behaviors of patients with depression. Compared with the “model-control”, irisin can remarkably reduce the immobility time of “model-irisin” mice in FST(P＜0.001) and TST(P＜0.05). Conclusions Irisin can significantly improve the depression-like behaviors of OSFS depression mice.

Key words: irisin, depression, physical exercise, antidepressant

中图分类号:

R338.2

李晶, 黄炳轩, 许琪. 海马内注射鸢尾素缓解小鼠抑郁样行为[J]. 基础医学与临床, 2022, 42(12): 1850-1854.

LI Jing, HUANG Bing-xuan, XU Qi. Intrahippocampal injection of irisin ameliorates depression-like behaviors in mice[J]. Basic & Clinical Medicine, 2022, 42(12): 1850-1854.

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海马内注射鸢尾素缓解小鼠抑郁样行为

Intrahippocampal injection of irisin ameliorates depression-like behaviors in mice

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