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Published on: August 8, 2022
[Association between GATA-4 mutations and congenital cardiac septal defects in Han Chinese patients]
Ming-wu Chen1, Yu-sheng Pang, Ying Guo
1Department of Pediatrics, the First Affiliated Hospital, Guangxi Medical University, Nanning, China.
Insights
Genetic mutations in the GATA-4 gene are linked to congenital cardiac septal defects in Han Chinese individuals. Two novel mutations were identified in patients, suggesting a potential role for GATA-4 in heart development.
Area of Science:
- Genetics
- Cardiology
- Molecular Biology
Background:
- Congenital cardiac septal defects are common heart abnormalities.
- The GATA-4 gene plays a crucial role in cardiac development.
Purpose of the Study:
- To investigate the association between GATA-4 gene mutations and congenital cardiac septal defects.
- To identify novel mutations in the GATA-4 gene in Han Chinese patients.
Main Methods:
- Studied 50 Han Chinese patients with septal defects and 100 controls.
- Amplified GATA-4 exons and intron-exon boundaries using polymerase chain reaction.
- Sequenced amplified products to identify mutations.
Main Results:
- Discovered two novel heterozygous GATA-4 mutations: His28Tyr (exon 2) and His436Tyr (exon 7).
- These mutations were absent in the control group and not previously reported.
- Mutations were found in patients with congenital cardiac septal defects.
Conclusions:
- GATA-4 gene mutations are potentially associated with congenital cardiac septal defects.
- Findings suggest GATA-4 mutations may contribute to the pathogenesis of these defects in Han Chinese patients.
Objective:
To elucidate the association between GATA-4 gene mutations and congenital cardiac septal defects in Han Chinese patients.
Methods:
Fifty Han Chinese patients with congenital cardiac septal defects and 100 normal subjects with the same ethnical background were studied. Total six exons and the intron-exon boundaries of GATA-4 were amplified by the polymerase chain reaction. The polymerase chain reaction products were purified and directly sequenced with automatic sequencer.
Results:
Two novel heterozygous mutations were discovered in the GATA-4 gene of patients with congenital cardiac septal defects, His28Tyr in exon 2 and His436Tyr in exon 7 respectively, which were absent in the control population and not reported in the SNP database (http://www.ncbi.nlm.nih.gov/SNP).
Conclusion:
Our finding suggests that the mutations in the transcription factor GATA-4 may be related to congenital cardiac septal defects in Han Chinese patients.
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