在先天性心脏缺陷中的MYH6:法国队列中的基因型-表型表征法
Elise Daire1,2,3, Clément Sauvestre4, Antoine Moktadir5
1Pediatric Cardiology Department, Amiens University Hospital, Amiens, France. daire.elise@chu-amiens.fr.
Pediatric cardiology
|October 30, 2025
概括
MYH6基因变异与先天性心脏缺陷 (CHD) 相关,主要是左心脏问题和持续的左上 vena cava. 建议对MYH6进行基因检测,特别是当家族病史不清楚时.
科学领域:
- 心血管遗传学 心血管遗传学
- 儿童心脏病学 儿童心脏病学
- 医学遗传学 医学遗传学
背景情况:
- 先天性心脏缺陷 (CHD) 是常见的婴儿异常,具有显著的发病率和死亡率.
- 遗传和环境因素有助于心血管疾病的发展.
- MYH6基因变异被认为是心脏病的潜在主要遗传因素.
研究的目的:
- 在被诊断患有心脏病并携带MYH6变体的个体中表征心脏表型.
- 调查MYH6变种与特定的CHD亚型之间的关联.
- 在这个队列中评估持续的左上静脉 (LSVC) 的患病率.
主要方法:
- 在四个法国遗传学实验室中,对29名患有心脏病和确定MYH6变异的患者的临床和家庭数据进行了回顾性分析.
- 详细的表型和变体分析.
- 家庭查以评估透度和表现力.
主要成果:
- 左心缺陷是主要的表型 (68.9%),包括低可塑性左心综合征,左心阻塞和主动脉缩.
- 持续的左上静脉 (LSVC) 在37.9%的病例中被观察到,比一般文献报告的患病率要高得多.
- 大多数MYH6变体是异构的,错误的,和遗传的,有证据表明不完全的透和可变的表达性.
结论:
- MYH6变体与一系列心脏病相关,特别是左心脏缺陷和LSVC.
- 这些发现支持在心脏病患者中对MYH6基因进行更广泛的分子查.
- 当家族性心血管疾病复发不确定时,考虑MYH6查尤为重要.
相关概念视频
Cardiomyopathy III: Hypertrophic Cardiomyopathy
387
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...
387
X-linked Traits
58.2K
In most mammalian species, females have two X sex chromosomes and males have an X and Y. As a result, mutations on the X chromosome in females may be masked by the presence of a normal allele on the second X. In contrast, a mutation on the X chromosome in males more often causes observable biological defects, as there is no normal X to compensate. Trait variations arising from mutations on the X chromosome are called “X-linked”.
58.2K
Genetic Lingo
113.7K
Overview
113.7K
Cardiomyopathy I: Introduction and Classification
490
Cardiomyopathy, or CMP, is a group of diseases affecting the myocardial structure, impairing its ability to pump blood effectively. This condition can lead to arrhythmias, heart failure, or sudden cardiac death.Cardiomyopathies are classified into primary and secondary categories:Primary Cardiomyopathy refers to conditions involving only the heart muscle that are often idiopathic (of unknown cause) or genetic. They primarily affect the myocardium without the involvement of other systemic...
490
Pulmonary Hypertension: Classification and Pathogenesis
557
Pulmonary hypertension (PH) is a severe health condition in which the mean pulmonary arterial pressure increases to 25 mmHg or more, even when the body is at rest. This high pressure in the blood vessels that transport blood from the heart to the lungs can cause various symptoms, including shortness of breath, can lead to right heart failure, and significantly affect the overall quality of life.
There are various classifications for PH, each relating to different underlying causes and also...
There are various classifications for PH, each relating to different underlying causes and also...
557
Pedigree Analysis
88.7K
Overview
88.7K


