出生性心脏缺陷在左侧与右侧相比有所不同 鸟类心脏神经移除
Tatiana Solovieva1, Marianne E Bronner1
1California Institute of Technology, USA.
Developmental biology
|December 12, 2024
概括
在胚胎中,手术切除右心神经导致更严重和多样化的先天性心脏缺陷,包括共同的动脉干和双出口右心室 (DORV),表明发育不对称.
科学领域:
- 发展生物学 发展生物学
- 心血管研究研究心血管研究
- 神经细胞生物学 神经细胞生物学
背景情况:
- 心脏神经对于正常的心脏发育至关重要.
- 像普通动脉干和双出口右心室 (DORV) 这样的先天性心脏缺陷 (CHD) 是常见的,并且与心脏神经顶部功能障碍有关.
- 人们对心脏神经对心脏发育的潜在左右不对称性知之甚少.
研究的目的:
- 研究心脏发育中的左心脏神经和右心脏神经的潜在不对称作用.
- 为了比较心脏神经的单边切除导致的心脏缺陷的类型和严重程度.
主要方法:
- 在胚胎中,手术切除左心神经或右心神经.
- 详细分析结果的心脏形态和动脉模式.
- 左和右切除组之间的缺陷流行率和胚胎存活率的比较.
主要成果:
- 右心神经移除导致心脏缺陷比左心神经移除更频繁和严重.
- 常见的动脉干和动脉产生仅在右切除胚胎中观察到.
- 双出口右心室 (DORV) 和动脉错位在右切除胚胎中更为普遍.
- 在右心神经移除后,胚胎存活率显著降低.
结论:
- 这些发现表明左心神经和右心神经之间存在功能和发育不对称.
- 右心神经可能在心脏形态发生和动脉发育的特定方面发挥更关键或更明显的作用.
- 需要进一步的研究来阐明这些观察到的左右差异背后的分子机制.
相关概念视频
01:27Development of the Heart
The development of the human heart, a crucial organ, commences from the mesoderm on the 18th or 19th day after fertilization. This process initiates in the cardiogenic area, a group of mesodermal cells at the embryo's head end, which evolves into elongated strands known as cardiogenic cords. These cords undergo a transformation to form hollow-centered endocardial tubes.
As the embryo undergoes lateral folding, these paired tubes approach each other, merging into a single primitive heart tube by...
As the embryo undergoes lateral folding, these paired tubes approach each other, merging into a single primitive heart tube by...
01:24Cardiac Catheterization III: Left Heart Catheterization
Left heart catheterization is an invasive diagnostic procedure used to evaluate the function and structure of the left side of the heart. It is generally performed to diagnose and treat cardiovascular conditions such as valve abnormalities, coronary artery disease, and congenital heart defects.Diagnostic and therapeutic purposesLeft heart catheterization serves various diagnostic and therapeutic purposes, including:Assessing coronary artery bypass grafts.Evaluating coronary artery disease in...