清热利胆解毒方通过调控线粒体自噬改善高铜负荷大鼠的认知功能障碍
王钰岚 , 方向 , 陈泽铭 , 阮炳坤 , 韩欣礼 , 唐雨婕 , 朱璐瑶
南方医科大学学报 ›› 2025, Vol. 45 ›› Issue (11) : 2437 -2443.
清热利胆解毒方通过调控线粒体自噬改善高铜负荷大鼠的认知功能障碍
Qingre Lidan Jiedu Recipe improves high copper load-induced cognitive dysfunction in rats by regulating mitophagy
目的 探讨清热利胆解毒方改善高铜负荷大鼠认知功能障碍的可能机制。 方法 将75只SD大鼠(雄)随机分为空白组(NG)、模型组(MG)、清热利胆解毒方组(TCM)、青霉胺组(PCA)和清热利胆解毒方加青霉胺组(TCM+PCA),15只/组。巴恩斯迷宫实验和避暗实验测试大鼠学习记忆能力,Western blotting和免疫荧光检测海马区NIX、FUNDC1、LC3的表达,用透射电镜观察海马区线粒体形态和结构。 结果 行为学测试结果显示,MG组较NG组大鼠目标洞潜伏期明显升高(P<0.05),进入暗室的潜伏期缩短(P<0.01),错误次数增加(P<0.01);TCM+PCA组较MG组第4天、测试期目标洞潜伏期时间明显缩短(P<0.05),进入暗室的潜伏期延长(P<0.01),错误次数减少(P<0.01),TCM+PCA组较TCM组、PCA组错误次数减少(P<0.01)。Western blotting结果显示,NG组及治疗各组较MG组大鼠海马区NIX、FUNDC1的表达水平增高(P<0.01),LC3Ⅰ、LC3Ⅱ的表达水平明显减少(P<0.05);TCM+PCA组较TCM组、PCA组NIX、FUNDC1的表达水平明显增高(P<0.05),LC3Ⅰ的表达水平明显减少(P<0.01)。免疫荧光检测结果显示MG组较NG组、TCM+PCA组大鼠海马区NIX、FUNDC1蛋白总荧光强度减弱(P<0.01),LC3蛋白总荧光强度增强(P<0.01);TCM组较PCA组各蛋白总荧光强度差异列统计学意义(P>0.05)。透射电镜可见NG组细胞内线粒体大多形态完整,MG组线粒体结构紊乱且边缘模糊,治疗各组线粒体形态结构均有不同程度改善。 结论 清热利胆解毒方可改善高铜负荷WD模型大鼠认知功能障碍,调控线粒体自噬可能是其作用机制之一。
Objective To explore the mechanisms of Qingre Lidan Jiedu Recipe (QLJR) for improving cognitive dysfunction in rats with high copper load. Methods Seventy-five male SD rats were randomized into normal control group, model group, QLJR group, penicillamine (PCA) group, and QLJR+ PCA group. Except for those in the control group, all the rats were fed a high-copper diet for 12 weeks. The effects of the treatments on cognitive function of the rats were assessed using the Barnes maze and passive avoidance tests. Hippocampal expressions of NIX, FUNDC1 and LC3 of the rats were detected using Western blotting and immunofluorescence staining, and changes in mitochondrial morphology were observed with transmission electron microscopy. Results Behavioral tests showed prolonged target hole latency, shortened latency to enter the dark chamber, and increased error counts of the rats in the model group, which were significantly improved in QLJR+PCA group; the error counts were significantly lower in QLJR+PCA group than in either QLJR or PCA group. Among all the groups, the hippocampal expressions of NIX and FUNDC1 were the lowest and LC3 I/II expression the highest in the model group; NIX and FUNDC1 expressions were significantly higher and LC3 I expression was lower in QLJR+PCA group than in QLJR group and PCA group. Immunofluorescence staining revealed weakened NIX and FUNDC1 expressions and enhanced LC3 expression in the hippocampus of the rats in the model group as compared with those in the normal control and QLJR+PCA groups, but their expressions did not differ significantly between QLJR and PCA groups. The rats in the model group showed obvious structural disarray of the mitochondria, which were improved in all the treatment groups. Conclusion QLJR improves cognitive dysfunction in rats with high copper load possibly by regulating mitophagy.
| [1] |
|
| [2] |
裴 培, 张 静, 陈怀珍, |
| [3] |
董 婷, 杨文明, 张 娟, |
| [4] |
刘康文, 方 向, 金 珊, |
| [5] |
方 向, 金 珊, 鲍远程, |
| [6] |
秦雨. 基于Nrf2/Ho-1/线粒体轴的清热利胆解毒方维持海马线粒体稳态改善Wilson病认知障碍的机制研究[D]. 安徽中医药大学, 2024. |
| [7] |
|
| [8] |
孙正哲, 方 向, 金 珊, |
| [9] |
涂静怡, 王世成, 申长庆, |
| [10] |
|
| [11] |
马穰桂, 夏 志, 尚画雨. 线粒体自噬相关受体蛋白研究进展[J]. 生理学报, 2021, 73(6): 1025-34. |
| [12] |
范昕怡, 魏小棋, 柴王静, |
| [13] |
|
| [14] |
张泰铭. FUNDC1通过促进线粒体自噬调控缺氧状态下帕金森病的作用及机制研究[D]. 沈阳: 中国医科大学, 2023. |
| [15] |
唐嘉麟, 王一帆, 邓晓桦, |
| [16] |
|
| [17] |
|
| [18] |
夏 冉, 朱国旗, 高 兵, |
| [19] |
孙 泰, 陆雅春, 宁 芬, |
| [20] |
钱南南, 魏涛华, 杨文明, |
| [21] |
饶志红, 杨文明, 杨玉龙, |
| [22] |
方 向, 金 珊, 鲍远程, |
| [23] |
傅亚瑜. 基于Ghrelin相关信号通路的清热利胆解毒方对Wilson病认知障碍的干预机制研究[D]. 合肥: 安徽中医药大学, 2021. |
| [24] |
|
| [25] |
张红博. 大黄肝豆汤联合青霉胺治疗肝豆状核变性的疗效观察[J]. 国际中医中药杂志, 2007, 29(3): 141-3. |
| [26] |
陈书煌, 杜 伟, 邓静嫔, |
| [27] |
谭 俊, 张品晶, 张海峰. 姜黄素调控ATP/P2X4/NLRP3/Caspase-1信号通路改善脑出血小鼠神经功能[J]. 解剖科学进展, 2024, 30(6): 599-602. |
| [28] |
|
| [29] |
王汉隆, 孙 洋, 刘莎莎, |
安徽省自然科学基金面上项目(2208085MH271)
安徽省高等学校科学研究项目重大项目(2024AH040153)
安徽省中医药管理局中医药应用转化一般项目(2024cccx093)
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