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Hydrops fetalis v0.229 NEXN Zornitza Stark Marked gene: NEXN as ready
Hydrops fetalis v0.229 NEXN Zornitza Stark Gene: nexn has been classified as Green List (High Evidence).
Hydrops fetalis v0.229 NEXN Zornitza Stark Classified gene: NEXN as Green List (high evidence)
Hydrops fetalis v0.229 NEXN Zornitza Stark Gene: nexn has been classified as Green List (High Evidence).
Hydrops fetalis v0.228 NEXN Krithika Murali gene: NEXN was added
gene: NEXN was added to Hydrops fetalis. Sources: Literature
Mode of inheritance for gene: NEXN was set to BOTH monoallelic and biallelic (but BIALLELIC mutations cause a more SEVERE disease form), autosomal or pseudoautosomal
Publications for gene: NEXN were set to 33947203; 33949776; 35166435
Phenotypes for gene: NEXN were set to Lethal fetal cardiomyopathy; Hydrops fetalis; Cardiomyopathy, dilated 1CC - MIM#613122
Review for gene: NEXN was set to GREEN
Added comment: NEXN encodes cardiac Z-disc protein. Monoallelic variants associated with both paediatric and adult-onset dilated cardiomyopathy. 3 unrelated families reported with biallelic variants associated with lethal fetal cardiomyopathy. Fetal Hydrops reported in two of these families.

PMID 35166435 - 3 consecutive affected pregnancies with intrauterine fetal death, dilated cardiomyopathy +/- fetal hydrops/IUGR. Autopsy findings of DCM, endomyocardial fibroelastosis. Non-consanguineous Swedish family. Homozygous variant identified - (NM_144573:c.1302del;p.(Ile435Serfs*3)). Heterozygous carriers enriched in Swedish population.


PMID: 33949776 - Report a 11 year old with mild DCM on cardiac MRI with a heterozygous paternally inherited variant (1949_1951del), father also had mild DCM. Also report a 2nd patient who presented with fetal Hydrops at 33 weeks gestation requiring emergency C-section. Homozygous c.1174C > T,p.(R392*) variants identified. Microscopic investigation showed endomyocardial fibroelastosis.

PMID: 32058062 - male fetus, compound het, DCM, MTOP; previous pregnancy with the same history.
Sources: Literature