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Total Anomalous Pulmonary Venous Connections, Human Genetics.

R E Poelmann1, M R M Jongbloed2,3, M C DeRuiter4

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Advances in Experimental Medicine and Biology
|June 17, 2024
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Summary

Genetic and environmental factors contribute to anomalous pulmonary venous connections, including partial anomalous pulmonary venous connections (PAVC) and total anomalous pulmonary venous connection (TAPVC). Understanding these genetic pathways is crucial for diagnosing and managing these congenital heart conditions.

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Area of Science:

  • Medical Genetics
  • Developmental Biology
  • Cardiology

Background:

  • Partial anomalous pulmonary venous connections (PAVC) and total anomalous pulmonary venous connection (TAPVC) are congenital heart defects associated with abnormal gene expression and syndromes.
  • These conditions can occur with familial susceptibility, variable expression, incomplete penetrance, and environmental influences.

Purpose of the Study:

  • To provide an overview of the current understanding of the human genetics involved in anomalous pulmonary venous connections.
  • To highlight the complex interplay of genetic and epigenetic factors in the development of PAVC and TAPVC.

Main Methods:

  • Literature review of genetic and epigenetic pathways implicated in pulmonary venous connection development.
  • Synthesis of current knowledge on the genetic basis of PAVC and TAPVC.

Main Results:

  • Abnormal gene expression is linked to PAVC and TAPVC, often in conjunction with specific syndromes like heterotaxia.
  • Both genetic predispositions and environmental factors play a role in the etiology of these conditions.
  • Disturbances in multiple developmental pathways contribute to pulmonary venous misconnections.

Conclusions:

  • The development of anomalous pulmonary venous connections is multifactorial, involving complex genetic and epigenetic interactions.
  • Further research into these pathways is essential for improving diagnosis and potential therapeutic strategies for PAVC and TAPVC.