Molecular autopsy and clinical family screening in a case of sudden cardiac death reveals ACTN2 mutation related to hypertrophic/dilated cardiomyopathy and a novel LZTR1 variant associated with Noonan syndrome.
Mol Genet Genomic Med
; 10(7): e1954, 2022 07.
Article
en En
| MEDLINE
| ID: mdl-35656879
ABSTRACT
BACKGROUND:
Genetic cardiac diseases are the main trigger of sudden cardiac death (SCD) in young adults. Hypertrophic cardiomyopathy (HCM) is the most prevalent cardiomyopathy and accounts for 0.5 to 1% of SCD cases per year.METHODS:
Herein, we report a family with a marked history of SCD focusing on one SCD young adult case and one pediatric case with HCM.RESULTS:
For the deceased young adult, postmortem whole-exome sequencing (WES) revealed a missense variant in the ACTN2 gene c.355G > A; p.(Ala119Thr) confirming the mixed hypertrophic/dilated cardiomyopathy phenotype detected in the autopsy. For the pediatric case, WES allowed us the identification of a novel frameshift variant in the LZTR1 gene c.1745delT; p.(Val582Glyfs*10) which confirms a clinical suspicion of HCM related to Noonan syndrome.CONCLUSION:
The present study adds further evidence on the pathogenicity of ACTN2 p. Ala119Thr variant in SCD and expands the mutational spectrum of the LZTR1 gene related to Noonan syndrome.Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Cardiomiopatía Hipertrófica
/
Cardiomiopatía Dilatada
/
Síndrome de Noonan
Tipo de estudio:
Diagnostic_studies
/
Etiology_studies
/
Prognostic_studies
/
Risk_factors_studies
/
Screening_studies
Límite:
Adult
/
Child
/
Humans
Idioma:
En
Revista:
Mol Genet Genomic Med
Año:
2022
Tipo del documento:
Article
País de afiliación:
Túnez