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Published on: May 5, 2018
Molecular mechanisms of congenital heart disease
Jing-bin Huang1, Ying-long Liu, Pei-wu Sun
1Pediatric Center of Cardiac Surgery, Cardiovascular Institute and Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China.
Insights
Congenital heart disease (CHD) is a common birth defect with unknown causes for most cases. Research is uncovering genetic factors and molecular mechanisms, offering hope for better genetic counseling and care.
Area of Science:
- Cardiology
- Genetics
- Developmental Biology
Background:
- Congenital heart disease (CHD) represents the most prevalent birth defect.
- Despite advancements in cardiac development understanding and gene identification, the primary etiology for most CHD cases remains elusive.
Purpose of the Study:
- To review normal cardiac development.
- To outline recent genetic discoveries in CHD etiology.
- To propose strategies for further investigation of CHD causes.
Main Methods:
- Literature review of cardiac development.
- Analysis of recent genetic findings in congenital heart defects.
- Synthesis of potential research strategies for CHD etiology.
Main Results:
- CHD is a complex, multifactorial disease influenced by environmental and genetic factors.
- Specific causative genes for certain congenital heart defects and genetic syndromes have been identified.
- Potential molecular mechanisms include gene network mutations, altered hemodynamics, gene regulation, micro-RNA dysfunction, and epigenetics.
Conclusions:
- The molecular basis of CHD is a dynamic and rapidly advancing field.
- Continued progress in understanding CHD molecular mechanisms is expected to enhance genetic counseling and patient care.
Background:
Congenital heart disease (CHD) is the most common type of birth defect. Despite the many advances in our understanding of cardiac development and many genes related to cardiac development identified, the fundamental etiology for the majority of cases of congenital heart disease remains unknown.
Methods:
This review summarizes normal cardiac development, outlines the recent discoveries of the genetic causes of CHD, and provides possible strategies for exploring them.
Results:
CHD is a multifactorial complex disease, with environmental and genetic factors playing important roles. A number of causative genes of selected congenital heart defects and genetic syndromes have been found. The molecular mechanisms of CHD may include mutations in components of the cardiac gene network, altered haemodynamics, regulatory pathway of cardiac genes, micro-RNA dysfunction, epigenetics, adult congenital heart diseases, and so on.
Conclusions:
The molecular basis of CHD is an exciting and rapidly evolving field. The continuing advances in the understanding of the molecular mechanisms of CHD will hopefully result in improved genetic counseling and care of affected individuals and their families.
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