Mechanistic study of electroacupuncture preconditioning in alleviating myocardial ischemia-reperfusion injury in rats: involvement of mTOR/ROS signaling pathway to inhibit ferroptosis.

IF 1.7 4区 医学 Q4 NEUROSCIENCES
International Journal of Neuroscience Pub Date : 2025-03-01 Epub Date: 2024-02-06 DOI:10.1080/00207454.2023.2299315
Yan Xiao, Liang Ding
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引用次数: 0

Abstract

Purpose: The objective of this study was to investigate the mechanism of electroacupuncture pretreatment in reducing myocardial ischemia-reperfusion injury in rats.

Materials and methods: The comparison of HR among the different groups did not yield statistically significant differences (p > 0.05). Additionally, the trend of HR change at different time points within each group was not statistically significant (p > 0.05). In contrast, the comparison of SBP among the different groups showed statistically significant differences (p < 0.05). Furthermore, the trend of SBP change at different time points within each group exhibited significant differences (p < 0.05).

Results: Compared to the Sham group, rats in the I/R group and EA control group showed a significant decrease in EF, FS, SOD, p-mTOR/mTOR, GPX4, and FTH1, and an increase in CK-MB, cTnI, LDH, iron, ROS, MDA, ACSL4, and NCOA4 (p < 0.05). Compared to EA control group, rats in the EA group exhibited a significant increase in EF, FS, SOD, p-mTOR/mTOR, GPX4, and FTH1, and a decrease in CK-MB, cTnI, LDH, iron, ROS, MDA, ACSL4, and NCOA4 (p < 0.05). Compared to the EA group, rats in the EA + RAP group showed a significant decrease in EF, FS, SOD, p-mTOR/mTOR, GPX4, and FTH1, and an increase in CK-MB, cTnI, LDH, iron, ROS, MDA, ACSL4, and NCOA4 (p < 0.05).

Conclusions: Electroacupuncture preconditioning confers protective effects against myocardial ischemia-reperfusion injury in rats. Its mechanism may involve the activation of the mTOR/ROS signaling pathway by electroacupuncture to inhibit ferroptosis.

电针预处理缓解大鼠心肌缺血再灌注损伤的机制研究:mTOR/ROS信号通路抑制铁蛋白沉积的机制研究
本研究的目的是探讨电针预处理减轻大鼠心肌缺血再灌注损伤的机制。此外,各组内不同时间点的心率变化趋势也无统计学意义(P > 0.05)。相比之下,不同组间 SBP 的比较则显示出显著的统计学差异(P < 0.05)。此外,各组内不同时间点的 SBP 变化趋势也有显著差异(P < 0.05)。与 Sham 组相比,I/R 组和 EA 对照组大鼠的 EF、FS、SOD、p-mTOR/mTOR、GPX4 和 FTH1 显著降低,而 CK-MB、cTnI、LDH、铁、ROS、MDA、ACSL4 和 NCOA4 则显著升高(P < 0.05)。与 EA 对照组相比,EA 组大鼠的 EF、FS、SOD、p-mTOR/mTOR、GPX4 和 FTH1 显著增加,CK-MB、cTnI、LDH、铁、ROS、MDA、ACSL4 和 NCOA4 下降(P < 0.05)。与 EA 组相比,EA + RAP 组大鼠的 EF、FS、SOD、p-mTOR/mTOR、GPX4 和 FTH1 显著下降,而 CK-MB、cTnI、LDH、铁、ROS、MDA、ACSL4 和 NCOA4 上升(P < 0.05)。电针预处理对大鼠心肌缺血再灌注损伤具有保护作用,其机制可能是电针激活了mTOR/ROS信号通路,抑制了铁变态反应。
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来源期刊
CiteScore
5.10
自引率
0.00%
发文量
132
审稿时长
2 months
期刊介绍: The International Journal of Neuroscience publishes original research articles, reviews, brief scientific reports, case studies, letters to the editor and book reviews concerned with problems of the nervous system and related clinical studies, epidemiology, neuropathology, medical and surgical treatment options and outcomes, neuropsychology and other topics related to the research and care of persons with neurologic disorders.  The focus of the journal is clinical and transitional research. Topics covered include but are not limited to: ALS, ataxia, autism, brain tumors, child neurology, demyelinating diseases, epilepsy, genetics, headache, lysosomal storage disease, mitochondrial dysfunction, movement disorders, multiple sclerosis, myopathy, neurodegenerative diseases, neuromuscular disorders, neuropharmacology, neuropsychiatry, neuropsychology, pain, sleep disorders, stroke, and other areas related to the neurosciences.
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