虹膜素通过激活AMPKK来抑制内分泌网膜应激,减轻呼吸器诱导的隔膜功能障碍
Jumei Zhang1,2, Rui Tu1,2, Fasheng Guan1,2
1Department of Anesthesiology, The Affiliated Hospital of Southwest Medical University, Luzhou, China.
Journal of cellular and molecular medicine
|April 27, 2024
概括
虹膜素可以通过减少内分泌网膜应激和激活AMPK通路来防止呼吸器诱导的隔膜功能障碍 (VIDD). 这项研究研究了素.
科学领域:
- 生理学 生理学 生理学
- 分子生物学分子生物学
- 关键护理医学 关键护理医学
背景情况:
- 长时间的机械通风 (MV) 可以导致呼吸器诱导的隔膜功能障碍 (VIDD),其特点是隔膜缩和收缩能力降低.
- 目前,VIDD的确切机制和预防策略尚不清楚.
- 已知一种肌素 - - 虹膜素 - - 调节能量代谢,并在各种条件下通过减少内分泌网膜 (ER) 压力来产生保护作用.
研究的目的:
- 调查伊丽素在缓解呼吸机诱导的隔膜功能障碍 (VIDD) 中的潜在保护作用.
- 探索潜在的机制,包括ER压力,氧化压力,亡和AMPK通路激活,通过这些机制,素可能在VIDD中发挥作用.
主要方法:
- 通过使用接受机械通风的Sprague-Dawley大鼠建立了一种由呼吸器诱导的隔膜功能障碍 (VIDD) 的小鼠模型.
- 干预涉及向VIDD模型静脉注射虹膜素.
- 评估包括对隔膜收缩性,缩,横截面 (CSAs),ER压力标志物,AMPK蛋白表达,氧化应激和亡的测量.
主要成果:
- 机械通风的持续时间增加加剧了VIDD,增加了ER压力,并减少了虹膜蛋白的表达.
- 虹膜素干预改善了VIDD,显著降低了ER压力,氧化压力和亡指数.
- 机械通风降低了隔膜中酸化AMPK的表达,而虹膜剂则增加了它,表明AMPK通路的激活.
结论:
- 细胞内膜网膜应激被认为是导致呼吸机诱导的隔膜功能障碍 (VIDD) 的因素.
- 虹膜显示出对VIDD的保护作用,可能通过减少ER压力,氧化应激和亡来调解.
- 虹可以通过激活酸化AMPK通路来发挥其有益作用,为预防或治疗VIDD提供潜在的治疗点.
更多相关视频
10:12Author Spotlight: Exploring the Role of Unfolded Protein Response in HIV-1 Replication and Infectivity
Published on: June 14, 2024
1.9K
06:22Surfactant Depletion Combined with Injurious Ventilation Results in a Reproducible Model of the Acute Respiratory Distress Syndrome ARDS
Published on: April 7, 2021
3.4K
相关概念视频
Regulation of the Unfolded Protein Response
2.4K
Inositol-requiring kinase one or IRE1 is the most conserved eukaryotic unfolded protein response (UPR) receptor. It is a type I transmembrane protein kinase receptor with a distinctive site-specific RNase activity. As the binding mechanics of the misfolded proteins with the N-terminal domain of IRE-1 are unclear, three binding models — direct, indirect, and allosteric -- are proposed for receptor activation. Nevertheless, it is known that once a misfolded protein associates with IRE1, it...
2.4K
Acute Respiratory Failure-V
136
The treatment for acute respiratory failure varies based on factors like the underlying cause, overall health, and severity. A collaborative healthcare team is essential for early detection, often through arterial blood gas analysis. Identifying the cause is the primary goal, with treatment strategies adjusted for ventilation/perfusion (V/Q) mismatch, shunting, or diffusion impairment.
Ensure that patients are monitored continuously for their response to therapy, including changes in...
Ensure that patients are monitored continuously for their response to therapy, including changes in...
136
