GATA4 Mutations Linked to Heart Defects
Author Information
Author(s): Reamon-Buettner Stella Marie, Cho Si-Hyen, Borlak Juergen
Primary Institution: Fraunhofer Institute of Toxicology and Experimental Medicine
Hypothesis
Are mutations in the 3'-untranslated region of GATA4 associated with congenital heart disease (CHD)?
Conclusion
Somatic GATA4 mutations in the 3'-UTR may provide an additional molecular rationale for congenital heart disease.
Supporting Evidence
- Nine frequently occurring sequence alterations were found in the 3'-UTR of GATA4.
- Seven mutations are predicted to affect RNA folding.
- GATA4 mutations were identified in patients with various types of congenital heart defects.
Takeaway
This study found changes in a specific part of a gene called GATA4 that might help explain why some babies are born with heart problems.
Methodology
Direct sequencing of the 3'-UTR of GATA4 in DNA from 68 formalin-fixed hearts with cardiac malformations and blood samples from 12 patients with CHD.
Limitations
The study relies on formalin-fixed tissues, which may introduce artifacts.
Participant Demographics
Caucasian patients with complex cardiac malformations.
Digital Object Identifier (DOI)
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