电 ?? 调节脑缺血-再输液损伤中的FTO/Nrf2/NLRP3轴介导的烧
Chenglong Li1, Haisheng Ji2, Wei Mao3
1The First Clinical Medical College (First Affiliated Hospital), Anhui University of Chinese Medicine.
Neuroreport
|February 20, 2025
概括
电针 (EA) 通过降低N6-甲基氨酸 (m6A) 水平来保护大脑免受缺血-再输液损伤. 这种疗法向FTO/Nrf2/NLRP3通路,减轻烧亡并改善神经结果.
科学领域:
- 神经科学是一个神经科学.
- 分子生物学分子生物学
- 生物化学 生物化学
背景情况:
- 大脑缺血-再输液 (I/R) 损伤会导致严重的神经损伤.
- N6-甲基氨酸 (m6A) 修饰越来越多地与神经系统疾病的发病有关.
- 电针 (EA) 是一种潜在的神经保护疗法,用于I/R损伤.
研究的目的:
- 研究EA对m6A水平和大脑I/R损伤中的相关机制的治疗作用.
- 阐明EA在缓解I/R诱导的大脑损伤方面针对的特定分子通路.
主要方法:
- 建立了中脑动脉封闭/再输液 (MCAO/R) 损伤的老鼠模型.
- 在Baihui (GV20) 和Dazhui (GV14) 针点进行了7天的EA应用.
- 评估了神经功能,心脏病发作量,m6A水平以及关键蛋白表达 (FTO,Nrf2,NLRP3).
主要成果:
- EA显著改善了神经学分数,减少了心脏病发作量,并减轻了病理损伤.
- 通过提高FTO表达的调节,EA降低了总RNA m6A水平.
- EA增强了Nrf2表达和抑制了NLRP3炎症酶激活,减少了热亡,效应被shRNA-FTO逆转.
结论:
- 通过调节FTO/Nrf2/NLRP3轴,EA在脑I/R损伤中发挥神经保护作用.
- 通过FTO上调调节,EA降低m6A水平,激活Nrf2并抑制NLRP3介导的热.
- 这项研究提供了EA在神经系统疾病中的治疗潜力的机制性理解.
相关概念视频
Necrosis
Necrosis is considered as an “accidental” or unexpected form of cell death that ends in cell lysis. The first noticeable mention of “necrosis” was in 1859 when Rudolf Virchow used this term to describe advanced tissue breakdown in his compilation titled “Cell Pathology”.
Morphological Manifestations of Necrosis
Necrotic cells show different types of morphological appearance depending on the type of tissue and infection. In coagulative necrosis, cells become anucleated and die, but their...
Morphological Manifestations of Necrosis
Necrotic cells show different types of morphological appearance depending on the type of tissue and infection. In coagulative necrosis, cells become anucleated and die, but their...
Cellular Injury I: Introduction
Cellular injury occurs when a cell cannot maintain homeostasis or adapt to stressors such as hypoxia, toxins, or trauma. Depending on severity and duration, injury may be reversible, allowing recovery, or irreversible, leading to cell death.General Mechanisms of Cell InjuryAlthough causes vary, most cellular injuries arise from a few key mechanisms that disrupt essential functions and often amplify one another. Cell survival depends on the extent and balance of these disturbances.ATP depletion...
Cellular Injury IV: Necrosis
Necrosis is a form of irreversible cell death caused by severe injury such as ischemia, toxins, or trauma. Unlike programmed cell death, it is an uncontrolled, pathological process that typically provokes inflammation in surrounding tissues.Pathophysiologic ChangesNecrosis begins when cells sustain critical damage, leading to swelling of organelles, particularly mitochondria, and rapid ATP depletion. As energy levels decline, membrane ion pumps fail, leading to calcium influx and eventually,...
Ischemic Stroke ll: Pathophysiology
An ischemic stroke occurs when a cerebral blood vessel becomes obstructed, most often by a thrombus or embolus, interrupting the delivery of oxygen and glucose to brain tissue. Because neurons rely on continuous aerobic metabolism, energy failure begins within minutes of reduced perfusion. The region receiving the least blood flow becomes the infarct core, an area of irreversible cellular death. Surrounding this core lies the penumbra, a zone of hypoperfused but still viable tissue that is...
Transient Ischemic Attack l: Introduction
A transient ischemic attack (TIA) is a brief episode of neurological dysfunction caused by a temporary, focal reduction in cerebral blood flow. Although symptoms resemble those of an ischemic stroke, the interruption in perfusion is short-lived and does not cause permanent infarction. TIAs are clinically important because they often serve as early warning events for future stroke.Mechanisms of Transient Cerebral IschemiaTransient cerebral ischemia may arise through several mechanisms. One...
Hepatic Encephalopathy
DefinitionHepatic encephalopathy is a reversible neurologic syndrome that results from advanced liver dysfunction or portosystemic shunting. It leads to disturbances in cognition, behavior, and motor function due to the brain’s exposure to gut-derived toxins that the liver fails to detoxify.EtiologyThis condition develops either in the setting of acute fulminant hepatitis or progressively during chronic liver disease, such as cirrhosis and portal hypertension. Portosystemic shunting—including...


