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Dilated cardiomyopathy genetic testing

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Abdelrahman Ibrahim Abushouk, MD[2]

Overview

Overview

About 40 genes are currently included in genetic testing; however, mutations in >60 other genes have been linked to FCD, but are yet to be included.

Genetic Testing

Genetic Testing

  • FCD is primarily an autosomal dominant disease; however, cases with autosomal recessive or X-linked inheritance have been recognized.
  • Genetic studies have revealed an underlying genetic mutation in 30 to 40% of patients with FCD.[1]
  • About 40 genes are currently included in genetic testing; however, mutations in >60 other genes have been linked to FCD, but are yet to be included.
  • A full list of the genes that have been associated with DCM can be found in the Pathophysiology section.
  • A cohort study by Haas et al. showed that the genetic mutations in FCD overlap with other cardiomyopathies, highlighting the value of genetic testing in different types of cardiomyopathy.[2]
  • Current studies are focusing on the role of multiple mutations, enhancer region mutations, copy number variation, and intronic variants.[3]


References

References

  1. McNally EM, Golbus JR, Puckelwartz MJ (2013). “Genetic mutations and mechanisms in dilated cardiomyopathy”. J Clin Invest. 123 (1): 19–26. doi:10.1172/JCI62862. PMC 3533274. PMID 23281406.
  2. McNally EM, Golbus JR, Puckelwartz MJ (2013). “Genetic mutations and mechanisms in dilated cardiomyopathy”. J Clin Invest. 123 (1): 19–26. doi:10.1172/JCI62862. PMC 3533274. PMID 23281406.
  3. Sweet M, Taylor MR, Mestroni L (2015). “Diagnosis, prevalence, and screening of familial dilated cardiomyopathy”. Expert Opin Orphan Drugs. 3 (8): 869–876. doi:10.1517/21678707.2015.1057498. PMC 4988677. PMID 27547593.

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