Nur Nabihah Ahmad Rafie , Putri Yubbu , Shankar Aissvarya , Rajendran Pujita , Nurul Huda Musa , Noor Haliza Mohamed Ibrahim , Karuppiah Thilakavathy
{"title":"Genetic aspects of congenital heart disease in heterotaxy syndrome","authors":"Nur Nabihah Ahmad Rafie , Putri Yubbu , Shankar Aissvarya , Rajendran Pujita , Nurul Huda Musa , Noor Haliza Mohamed Ibrahim , Karuppiah Thilakavathy","doi":"10.1016/j.repc.2025.05.007","DOIUrl":null,"url":null,"abstract":"<div><div>Abnormal arrangement of thoracoabdominal organs, situs ambiguous, is also known as heterotaxy syndrome (HTX). It has been frequently linked with congenital heart diseases (CHD), which are commonly reported as atrioventricular septal defects (AVSD), atrial septal defects (ASD), ventricle septal defects (VSD), transposition of the great artery, and pulmonary stenosis or atresia. Two HTX categories are right atrial isomerism (RAI) and left atrial isomerism (LAI), which are distinguished by the organ's sidedness as well as their complexity. The etiology of the syndrome is being studied widely, where recent studies are more focused on the effect of gene variants present in affected individuals. <em>DNAH11</em>, <em>DNAH5</em>, <em>ZIC3</em>, <em>NODAL</em>, and <em>LEFTY</em> are among the genes studied and associated with HTX. <em>DNAH11</em> and <em>DNAH5</em> are associated with ciliary function while <em>ZIC3</em>, <em>NODAL</em> and <em>LEFTY</em> are associated with signaling pathways. As multiple genes are involved, HTX has been reported to have an autosomal dominant, autosomal recessive or X-linked inheritance patterns, depending on the causative genes in the individual. This review aims to summarize several previously reported HTX gene variants, inheritance patterns, as well as the cardiac and extracardiac clinical manifestations.</div></div>","PeriodicalId":48985,"journal":{"name":"Revista Portuguesa De Cardiologia","volume":"44 10","pages":"Pages 633-648"},"PeriodicalIF":1.6000,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Revista Portuguesa De Cardiologia","FirstCategoryId":"3","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0870255125002586","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CARDIAC & CARDIOVASCULAR SYSTEMS","Score":null,"Total":0}
引用次数: 0
Abstract
Abnormal arrangement of thoracoabdominal organs, situs ambiguous, is also known as heterotaxy syndrome (HTX). It has been frequently linked with congenital heart diseases (CHD), which are commonly reported as atrioventricular septal defects (AVSD), atrial septal defects (ASD), ventricle septal defects (VSD), transposition of the great artery, and pulmonary stenosis or atresia. Two HTX categories are right atrial isomerism (RAI) and left atrial isomerism (LAI), which are distinguished by the organ's sidedness as well as their complexity. The etiology of the syndrome is being studied widely, where recent studies are more focused on the effect of gene variants present in affected individuals. DNAH11, DNAH5, ZIC3, NODAL, and LEFTY are among the genes studied and associated with HTX. DNAH11 and DNAH5 are associated with ciliary function while ZIC3, NODAL and LEFTY are associated with signaling pathways. As multiple genes are involved, HTX has been reported to have an autosomal dominant, autosomal recessive or X-linked inheritance patterns, depending on the causative genes in the individual. This review aims to summarize several previously reported HTX gene variants, inheritance patterns, as well as the cardiac and extracardiac clinical manifestations.
期刊介绍:
The Portuguese Journal of Cardiology, the official journal of the Portuguese Society of Cardiology, was founded in 1982 with the aim of keeping Portuguese cardiologists informed through the publication of scientific articles on areas such as arrhythmology and electrophysiology, cardiovascular surgery, intensive care, coronary artery disease, cardiovascular imaging, hypertension, heart failure and cardiovascular prevention. The Journal is a monthly publication with high standards of quality in terms of scientific content and production. Since 1999 it has been published in English as well as Portuguese, which has widened its readership abroad. It is distributed to all members of the Portuguese Societies of Cardiology, Internal Medicine, Pneumology and Cardiothoracic Surgery, as well as to leading non-Portuguese cardiologists and to virtually all cardiology societies worldwide. It has been referred in Medline since 1987.