Related Experiment Video
Updated: Apr 27, 2026

Analysis of Congenital Heart Defects in Mouse Embryos Using Qualitative and Quantitative Histological Methods
Published on: March 10, 2020
Etiology of valvular heart disease-genetic and developmental origins
1Center for Cardiovascular and Pulmonary Research and The Heart Center at Nationwide Children's Hospital.
Insights
Understanding valvular heart disease genetics is key. Recent research links congenital and acquired valve conditions to genetic mutations and re-expressed developmental pathways, improving treatment prospects.
Area of Science:
- Cardiovascular Biology
- Developmental Biology
- Genetics
Background:
- Valvular heart disease (VHD) is increasingly prevalent due to medical advances.
- Current treatments for VHD are inadequate due to limited understanding of its genetic and molecular basis.
- Surgical repair or replacement are primary interventions but have complications and limited long-term success.
Purpose of the Study:
- To review recent advances in understanding heart valve development.
- To explore the implications of these findings on the genetics of congenital and acquired VHD.
- To highlight the re-expression of developmental pathways in acquired VHD.
Main Methods:
- Review of recent scientific literature on cardiac valve development.
- Analysis of genetic mutations associated with congenital valve malformations.
- Molecular investigation of signaling pathways in acquired VHD.
Main Results:
- Mutations in cardiac developmental genes are linked to congenital VHD.
- Acquired VHD involves re-expression of signaling pathways crucial for normal valve development.
- Advances in understanding valve development offer insights into VHD etiology.
Conclusions:
- A deeper understanding of valve development is crucial for addressing VHD.
- Genetic and molecular insights are transforming our view of both congenital and acquired VHD.
- Future therapeutic strategies may target developmental pathways implicated in VHD.
Abstract:
Valvular heart disease occurs as either a congenital or acquired condition and advances in medical care have resulted in valve disease becoming increasingly prevalent. Unfortunately, treatments remain inadequate because of our limited understanding of the genetic and molecular etiology of diseases affecting the heart valves. Therefore, surgical repair or replacement remains the most effective option, which comes with additional complications and no guarantee of life-long success. Over the past decade, there have been significant advances in our understanding of cardiac valve development and, not surprisingly, mutations in these developmental genes have been identified in humans with congenital valve malformations. Concurrently, there has been a greater realization that acquired valve disease is not simply a degenerative process. Molecular investigation of acquired valve disease has identified that numerous signaling pathways critical for normal valve development are re-expressed in diseased valves. This review will discuss recent advances in our understanding of the development of the heart valves, as well as the implications of these findings on the genetics of congenital and acquired valvular heart disease.
Related Concept Videos
Mitral Valve Prolapse I: Introduction
Mitral Stenosis I: Introduction
Rheumatic Heart Disease I: Introduction
Heart Valves
The AV valves prevent the backflow of blood from the ventricles to the atria during ventricular contraction. These valves function with the assistance of the chordae tendineae and papillary muscles. When the ventricles are relaxed, the chordae tendineae are slack, allowing blood to flow from the atria into the...
Aortic Regurgitation I: Introduction
Pulmonary Hypertension: Classification and Pathogenesis
There are various classifications for PH, each relating to different underlying causes and also...

