阿米诺菲林通过向IGF-1-FOXO1-MURF1通路来改善风扇诱导的隔膜功能障碍
Luyu Yang1, Xiaohong Jiang2, Jinhui Tan3
1Department of ICU/Emergency, Wuhan Third Hospital & Tongren Hospital of Wuhan University, 430070 Wuhan, Hubei, China.
Discovery medicine
|April 26, 2024
概括
阿米诺菲林 (AP) 通过调节类似胰岛素的生长因子-1 (IGF-1) - 盒蛋白O1 (FOXO1) - 肌肉RING手指-1 (MURF1) 途径,有效地逆转大鼠的呼吸器诱导的隔膜功能障碍 (VIDD). 这项研究突出了AP的AP.
科学领域:
- 生物医学科学 生物医学科学
- 呼吸系统生理学 呼吸系统生理学
- 分子生物学分子生物学
背景情况:
- 机械通风 (MV) 可以导致呼吸器诱导的隔膜功能障碍 (VIDD),增加患者的死亡率和发病率.
- 类似胰岛素的生长因子-1 (IGF-1) - 叉子盒蛋白O1 (FOXO1) - 肌肉RING finger-1 (MURF1) 途径与骨肌肉功能障碍有关.
- 阿米诺菲林 (AP) 可能增强呼吸道肌肉活动和收缩性.
研究的目的:
- 在大鼠模型中研究AP对VIDD的治疗效果.
- 阐明IGF-1-FOXO1-MURF1通路在AP对VIDD的作用中的作用.
- 评估AP对隔膜功能,氧化应激,线粒体稳定性和亡的影响.
主要方法:
- 通过MV处理建立VIDD的老鼠模型.
- 使用lentiviral干扰IGF-1的IGF-1-FOXO1-MURF1通路的抑制.
- 评估蛋白质和mRNA水平,隔膜收缩性,形态测量,氧化应激标志物,线粒体功能,亡以及蛋白质降解/合成率.
主要成果:
- MV治疗上调了IGF-1和下调了FOXO1和MURF1,导致隔膜收缩性降低,氧化应激增加,亡和蛋白质降解,并降低了线粒体稳定性.
- 在AP的管理下,扭转了这些MV引起的变化.
- 抑制IGF-1-FOXO1-MURF1通路消除了AP的保护作用,证实了通路的参与.
结论:
- 在老鼠中,MV诱导了VIDD,其特征是隔膜功能受损和细胞损伤.
- 通过调节IGF-1-FOXO1-MURF1通路,AP有效地改善了VIDD.
- AP显示出作为预防或治疗VIDD的治疗剂的潜力.
相关概念视频
Antiasthma Drugs: Methylxanthines
220
Theophylline, a member of the methylxanthine class of bronchodilators, has long been used in asthma management. While its exact mechanism of action is not fully understood, it is believed to have multiple effects on various cellular processes.
Theophylline is thought to inhibit phosphodiesterase enzymes, increasing intracellular levels of cyclic adenosine monophosphate (cAMP) and cyclic guanosine monophosphate (cGMP). This rise in cAMP and cGMP concentrations stimulates cardiac function,...
Theophylline is thought to inhibit phosphodiesterase enzymes, increasing intracellular levels of cyclic adenosine monophosphate (cAMP) and cyclic guanosine monophosphate (cGMP). This rise in cAMP and cGMP concentrations stimulates cardiac function,...
220
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
Heart Failure Drugs: Inotropic Agents
574
Positive inotropic agents are commonly used as the first line of treatment for heart failure. One such agent is digoxin, derived from the genus Digitalis, which has been known for centuries but effectively utilized since 1785. However, these cardiac glycosides can have potentially toxic effects due to their mechanism of action, which involves inhibiting Na+/K+-ATPase and increasing contractility. Digoxin is absorbed orally and distributed in various tissues, including the CNS. It has a long...
574
Skeletal Muscle Relaxants: Adverse Effects
361
Skeletal muscle relaxants are widely used for muscle paralysis and relieving pain following any muscle injury or stiffness. However, depending on the drug type, they can have adverse effects that range from mild to severe. Usually, nondepolarizing neuromuscular blockers have minimal side effects. For example, drugs like d-tubocurarine, cisatracurium, and rocuronium cause hypotension, whereas drugs like baclofen, when stopped abruptly, can lead to the recurrence of spastic conditions.
Unlike...
Unlike...
361
Nondepolarizing (Competitive) Neuromuscular Blockers: Pharmacological Actions
416
Nondepolarizing neuromuscular blockers prevent the membrane depolarization of muscle cells and inhibit muscle contraction. These are usually administered with anesthetics to achieve complete muscle relaxation. Upon administration, these drugs first block the small, rapidly contracting muscles of the face and hands, followed by the larger muscles of the trunk and the intercostal muscles. The diaphragm is the last muscle to be affected.
Although all competitive neuromuscular blockers are designed...
Although all competitive neuromuscular blockers are designed...
416
Mechanical Ventilation III: Noninvasive Ventilation
110
Noninvasive positive-pressure ventilation (NIPPV), continuous positive airway pressure (CPAP), and bilevel positive airway pressure (BiPAP) are essential methods in respiratory care. These ventilation techniques offer unique benefits for patients with various respiratory conditions, providing adequate support without requiring intubation. Let's explore how each method is crucial in improving patient outcomes and enhancing respiratory therapy.
Noninvasive Positive-Pressure Ventilation...
Noninvasive Positive-Pressure Ventilation...
110


