EMD missense variant causes X-linked isolated dilated cardiomyopathy with myocardial emerin deficiency.

ABSTRACT: Pathogenic variants in the EMD gene cause X-linked Emery-Dreifuss muscular dystrophy type 1 (EDMD1), typically presenting with joint contractures and skeletal muscle atrophy, followed by atrial arrhythmias, cardiac conduction defects, and atrial dilatation. Although an association with isolated dilated cardiomyopathy (DCM) has been suggested, evidence is currently insufficient to verify the gene-disease association. We investigated the causality of a missense variant, c.23C>G, p.Ser8Trp, in EMD in a large family with a history of DCM and suspected sudden cardiac death (SCD) in males. DCM was diagnosed in six hemizygous males aged 36-50 and detailed phenotyping identified end-stage heart failure, cardiac conduction defects, and ventricular arrhythmias as prominent features. Cardiac magnetic

SUBMITTER: Bulmer L 

PROVIDER: S-EPMC12185710 | biostudies-literature | 2025 Jun

REPOSITORIES: biostudies-literature