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相关概念视频

Heart Failure II: Pathophysiology01:29

Heart Failure II: Pathophysiology

15
Systolic Heart Failure and Compensatory MechanismsSystolic heart failure (also termed HFrEF, Heart Failure with Reduced Ejection Fraction) is the most prevalent type of heart filure. It results in a decreased volume of blood being pumped from the ventricle. The aortic arch and carotid sinuses have baroreceptors that detect reduced blood pressure, triggering the sympathetic nervous system (SNS) to release epinephrine and norepinephrine. Initially, this response aims to boost heart rate and...
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Pathophysiology of Heart Failure01:17

Pathophysiology of Heart Failure

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Heart failure (HF) is a progressive syndrome involving ventricles that leads to inadequate cardiac output. It can be classified based on location and output or ejection fraction. Ejection fraction (EF) is an essential measurement in the diagnosis and surveillance of HF. Reduced EF corresponds to systolic heart failure (HFrEF). However, HF with preserved ejection fraction (HFpEF) is becoming increasingly prevalent. Also known as diastolic HF, this form of HF is related to aging. The...
1.6K
Heart Failure I: Introduction01:27

Heart Failure I: Introduction

15
Heart failure refers to a clinical syndrome caused by structural or functional cardiac disorders that prevent the heart from pumping an adequate amount of blood to meet the body's metabolic needs. This condition often arises from myocardial infarction or ischemia, leading to decreased cardiac output, reduced tissue perfusion, impaired gas exchange, fluid volume imbalance, and decreased functional ability.Heart failure can result from disruptions in the mechanisms that regulate cardiac output...
15
Heart Failure V: Medical Management01:30

Heart Failure V: Medical Management

13
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...
13
Cardiomyopathy V: Interprofessional Care01:29

Cardiomyopathy V: Interprofessional Care

14
Managing cardiomyopathy involves addressing underlying or precipitating causes, treating heart failure with medications, and implementing dietary changes and a balanced exercise and rest regimen.Lifestyle ModificationsCardiomyopathy patients should adopt a low-sodium diet to reduce fluid retention and manage heart failure. A personalized exercise and rest plan helps maintain physical fitness without overstraining the heart. Avoiding alcohol and tobacco is essential to prevent further damage to...
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Cardiomyopathy III: Hypertrophic Cardiomyopathy01:29

Cardiomyopathy III: Hypertrophic Cardiomyopathy

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Hypertrophic cardiomyopathy, or HCM, is an autosomal dominant genetic disorder characterized by asymmetric left ventricular hypertrophy without ventricular dilation. It is more common in men and is typically diagnosed in young, athletic adults.EtiologyHCM is primarily genetic and is caused by mutations in genes encoding sarcomeric proteins. Researchers have identified over 1400 mutations across at least 11 different genes. Among these, the most frequently occurring mutations are found in the...
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相关实验视频

Updated: Jul 17, 2025

Suppression of Pro-fibrotic Signaling Potentiates Factor-mediated Reprogramming of Mouse Embryonic Fibroblasts into Induced Cardiomyocytes
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在HFpEF中进行心肌代谢重编程

Zihui Zhang1, Mingchu Sun1, Wenhua Jiang1

  • 1Xi'an Key Laboratory of Stem Cell and Regenerative Medicine, Institute of Medical Research, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, People's Republic of China.

Journal of cardiovascular translational research
|August 31, 2023
PubMed
概括

保存喷射分数 (HFpEF) 的心力衰竭涉及心脏线粒体功能障碍和代谢重编程. 针对这些代谢变化为HFpEF治疗提供了一个有前途的治疗策略.

关键词:
心力衰竭与保存的喷射分数的心脏衰竭心力衰竭与减少的喷射分数心力衰竭.代谢重编程是一种代谢重编程.线粒体功能障碍 线粒体功能障碍

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Suppression of Pro-fibrotic Signaling Potentiates Factor-mediated Reprogramming of Mouse Embryonic Fibroblasts into Induced Cardiomyocytes
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Isolation of Atrial Cardiomyocytes from a Rat Model of Metabolic Syndrome-related Heart Failure with Preserved Ejection Fraction
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Assessing Cardiac Reprogramming using High Content Imaging Analysis
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科学领域:

  • 心脏病学 心脏病学
  • 代谢研究的研究.
  • 生物化学 生化学

背景情况:

  • 心力衰竭 (HF) 是全球主要的健康负担,心力衰竭与保留喷射分数 (HFpEF) 影响超过一半的患者.
  • 目前的HFpEF治疗主要是治疗症状,由于对其机制的不完全理解,缺乏向治疗.
  • 心脏代谢重编程是HF中对压力的补偿反应,但其在HFpEF中的特定作用需要进一步研究.

研究的目的:

  • 审查目前对HFpEF心脏线粒体功能障碍的理解.
  • 总结心脏代谢重编程在HFpEF病理生理学的作用.
  • 突出针对HFpEF治疗代谢途径的潜在治疗策略.

主要方法:

  • 文献综述侧重于心脏代谢和HFpEF.
  • 综合了关于线粒体功能和HFpEF中的代谢转变的发现.
  • 分析与代谢重编程相关的新兴治疗点.

主要成果:

  • HFpEF的特点是显著的心脏线粒体功能障碍.
  • 代谢重编程,包括改变基质利用,是HFpEF的一个关键特征.
  • 这些代谢变化有助于HFpEF的病态心脏重塑.

结论:

  • 线粒体功能障碍和代谢重编程是HFpEF病理生理学的核心.
  • 准代谢途径为HFpEF提供了一个新的和有前途的治疗途径.
  • 对代谢干预的进一步研究可能会导致有效的HFpEF治疗.