心脏病中的表观遗传机制
1Medical Faculty, Department of Biophysics, Trakya University, 22030 Edirne, Türkiye.
Reviews in cardiovascular medicine
|August 8, 2025
概括
表观遗传机制通过改变基因表达来显著调节心脏病 (HDs). 了解这些表观遗传通路,包括DNA甲基化和基因组修饰,是开发新生物标志物和心血管病理学的精确疗法的关键.
科学领域:
- 心血管科学 心血管科学
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
- 基因组学就是基因组学.
背景情况:
- 心脏病 (HDs) 是一个主要的全球健康问题,具有复杂的促成因素.
- 表观遗传机制,即修改基因表达而不改变DNA序列,越来越被认为在心血管病理学中至关重要.
- 早期检测和诊断对于改善心脏病治疗和预后至关重要.
研究的目的:
- 审查最近在心脏病表观遗传调节方面的发现.
- 要突出关键的表观遗传修饰剂的作用,如DNA甲基转移酶 (DNMTs),基因素脱乙酶 (HDACs),siruins (SIRTs) 和十一个转位蛋白 (TETs).
- 探索针对精密心脏病学的表观遗传修饰物的临床前治疗策略.
主要方法:
- 综述最近关于表观遗传学和心脏病的科学文献.
- 分析下一代测序技术对理解表观遗传作用的贡献.
- 检查特定的表观遗传机制:DNA甲基化,染色质重塑,基因质修饰和非编码RNAs.
主要成果:
- 候选基因中的异常甲基化状态可以作为心脏病进展的生物标志物.
- 表观遗传机制会影响与心脏病相关的基因的表达.
- 测序方面的进步加深了对表观遗传在心血管疾病中的作用的理解.
结论:
- 了解表观遗传途径对于开发新的生物标志物和治疗心脏病至关重要.
- 准表观遗传修饰剂为心脏病学中的精准医学提供了新的途径.
- 基于表观遗传学的疗法有望扭转不适应的心脏重塑并改善临床结果.
相关概念视频
01:37Epigenetic Regulation
3.1K
Epigenetic changes alter the physical structure of the DNA without changing the genetic sequence and often regulate whether genes are turned on or off. This regulation ensures that each cell produces only proteins necessary for its function. For example, proteins that promote bone growth are not produced in muscle cells. Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
X-chromosome...
X-chromosome...
3.1K
01:17Pathophysiology of Heart Failure
1.8K
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...
1.8K
01:30Coronary Artery Disease I: Introduction
57
Coronary Artery Disease (CAD): An Overview with Scientific InsightsCoronary Artery Disease (CAD), often referred to as C-A-D, is a prevalent blood vessel disorder classified under the broader category of atherosclerosis. Atherosclerosis is a pathological process characterized by the hardening and narrowing of arteries due to the accumulation of atherosclerotic plaques. These plaques are composed of cholesterol, fatty substances, inflammatory cells, calcium, and fibrin, reducing blood flow to...
57
01:29Heart Failure II: Pathophysiology
41
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...
41
01:27Heart Failure I: Introduction
55
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...
55
01:26Coronary Artery Disease II: Pathophysiology
36
Coronary Artery Disease (CAD) originates from a series of events that impair the function of coronary arteries, the blood vessels responsible for delivering oxygen-rich blood to the heart muscle. The pathophysiology of CAD is closely linked to atherosclerosis, a chronic inflammatory and lipid-driven condition affecting the vascular endothelium.1. Endothelial DamageThe process begins with damage to the vascular endothelium, which serves as a protective barrier between the blood and the vessel...
36