分子:心脏手术后损伤的潜在治疗策略
Barbora Kalocayova1, Branislav Kura1, Jana Vlkovicova1
1Centre of Experimental Medicine, Institute for Heart Research, Slovak Academy of Sciences, Bratislava, Slovakia.
Canadian journal of physiology and pharmacology
|July 18, 2023
概括
在猪心脏手术后,分子 (H2) 疗法保护了脏. 2气降低了氧化应激,并使功能生物标志物正常化,这表明它对急性损伤有保护作用.
科学领域:
- 心血管外科心血管外科
- 腎臟病學 (nephrology) 是一種醫學專業.
- 生物化学 生物化学
背景情况:
- 心脏手术相关的急性损伤 (AKI) 是一个常见的并发症.
- 氧化应激是心脏手术后AKI的主要原因.
- 分子 (H2) 以其抗氧化特性而闻名.
研究的目的:
- 为了研究H2在猪模型中模拟心脏移植后对功能的保护作用.
- 评估H2对氧化应激标志物和脏生物标志物的影响.
主要方法:
- 猪通过体外循环进行模拟心脏移植.
- 研究了两个组:对照组 (T猪) 和H2治疗组 (TH猪) 在麻醉和氧化期间接受4%的H2.
- 测量了血肌素,尿素和的水平.
- 通过Western blot分析了Nrf2,Keap1和SOD1的脏组织蛋白水平.
主要成果:
- 心脏手术导致血生物标志物升高,表明损伤.
- H2治疗导致肌素,尿素和水平的正常化.
- 2治疗激活了Nrf2/Keap1通路,并增加了超氧化脱酶1 (SOD1) 蛋白质的表达.
结论:
- 在心脏手术后,H2对猪的功能产生显著的保护作用.
- 2疗法使主要的血生物标志物正常化,并调节抗氧化途径,减轻损伤.
相关概念视频
Acute Kidney Injury V: Interprofessional Care
26
Acute Kidney Injury (AKI) requires a collaborative healthcare approach to restore renal function and prevent complications. Essential management strategies involve monitoring fluid and electrolyte balance, adjusting medications, initiating dialysis when necessary, and providing nutritional support.Fluid and Electrolyte ManagementFluid Monitoring: Regularly monitoring body weight, central venous pressure, and urine output helps detect fluid imbalances early. Patient intake and output are...
26
Heart Failure Drugs: Diuretics
423
Heart failure and kidney perfusion are interconnected in a complex way. Reduced renal perfusion and venous congestion are two significant factors that contribute to renal dysfunction in heart failure. The kidneys, primarily responsible for fluid balance in the body, are adversely affected due to compromised cardiac output and increased venous pressure. In response to reduced renal perfusion, the kidneys activate neurohumoral mechanisms to restore balance. However, these mechanisms can be...
423
Heart Failure Drugs: Inhibitors of Renin-Angiotensin System
465
The activation of the sympathetic nervous system and the renin-angiotensin-aldosterone system (RAAS) contributes to cardiac remodeling, and inhibiting the RAAS is a pharmacological target in heart failure management. As a result, neurohumoral modulation is a crucial treatment principle for managing heart failure. This approach involves using medications like ACE inhibitors (ACEIs), angiotensin receptor blockers (ARBs), β-blockers, mineralocorticoid receptor antagonists (MRAs), and neutral...
465
Acute Kidney Injury IV: Diagnostic Studies and Prevention
36
Accurate diagnosis and effective prevention are critical in managing Acute Kidney Injury (AKI), which is linked to high mortality rates ranging from 10% to 80%. Timely recognition of at-risk patients and careful monitoring can significantly reduce the likelihood of kidney damage.Diagnostic Assessments:The diagnostic process starts with a comprehensive medical history to identify prerenal, intrarenal, and postrenal causes.Prerenal causes, such as dehydration, hypotension, or blood loss, should...
36
Acute Kidney Injury VI: Nursing Management
34
Acute Kidney Injury (AKI) results in an inability to maintain fluid, electrolyte, and acid-base balance. Effective nursing management is critical in improving patient outcomes and includes comprehensive patient assessment and targeted interventions.Comprehensive Patient AssessmentA detailed history collection is essential, focusing on any recent infections, nephrotoxic medication use, or chronic conditions such as hypertension and diabetes that may contribute to AKI. During the physical...
34
Heart Failure V: Medical Management
14
Medical Management of Acute Decompensated Heart Failure (ADHF)The primary goals of therapy for patients hospitalized with acute decompensated heart failure (ADHF) include:Relieving symptomsOptimizing volume statusSupporting oxygenation and ventilationMaintaining cardiac output (CO) and end-organ perfusionIdentifying and addressing the cause of ADHFPreventing complicationsProviding patient education on factors precipitating HF exacerbationPlanning for dischargeOngoing monitoring and assessment...
14


