Polymorphisms in congenital heart disease and extracardiac disorders

Area of Science:

• Genetics
• Cardiology
• Developmental Biology

Background:

• Congenital heart disease (CHD) presents long-term complications and often co-occurs with extracardiac disorders.
• While structural variants are recognized, genetic polymorphisms are increasingly acknowledged as significant contributors to CHD.
• The interplay between CHD and extracardiac conditions warrants further investigation into shared genetic underpinnings.

Purpose of the Study:

• To review the role of genetic polymorphisms in the etiology of congenital heart disease.
• To examine the association between genetic polymorphisms implicated in CHD and various extracardiac disorders.
• To highlight the potential for early identification of genetic risk factors for preventive strategies.

Main Methods:

• Literature review of studies investigating genetic polymorphisms in CHD.
• Analysis of associations between CHD-related polymorphisms and extracardiac conditions.
• Synthesis of findings on gene categories including matricellular proteins, angiogenesis factors, and epigenetic regulators.

Main Results:

• Polymorphisms in genes controlling matricellular proteins, angiogenesis, folic acid metabolism, transcription factors, and epigenetic regulators are implicated in CHD.
• These polymorphisms are also linked to diverse extracardiac disorders such as acute myeloid leukemia, type 1 diabetes, asthma, and neural tube defects.
• Specific examples include associations with acute lymphoblastic leukemia, Wilms tumor, vitiligo, cleft lip and palate, and retinopathy of prematurity.

Conclusions:

• Genetic polymorphisms are crucial factors in both CHD and a spectrum of extracardiac disorders.
• Shared genetic pathways underscore the interconnectedness of these conditions.
• Prenatal identification of these polymorphisms could facilitate timely interventions to mitigate risks for both CHD and associated extracardiac conditions.