Detection of novel Fabry disease-associated pathogenic variants in Japanese patients by newborn and high-risk screening.
Mol Genet Genomic Med
; 8(11): e1502, 2020 11.
Article
en En
| MEDLINE
| ID: mdl-33016649
ABSTRACT
BACKGROUND:
In Japan, newborn and high-risk screening for Fabry disease (FD), an inherited X-linked disorder caused by GLA mutations, using dried blood spots was initiated in 2006. In newborn screening, 599,711 newborns were screened by December 2018, and 57 newborns from 54 families with 26 FD-associated variants were detected. In high-risk screening, 18,235 individuals who had symptoms and/or a family history of FD were screened by March 2019, and 236 individuals from 143 families with 101 FD-associated variants were detected. Totally 3, 116 variants were detected; 41 of these were not registered in Fabry-database.org or ClinVar and 33 were definitely novel. Herein, we report the clinical outcomes and discuss the pathogenicity of the 41 variants.METHODS:
We traced nine newborns and 46 individuals with the 33 novel variants, and nine newborns and 10 individuals with eight other variants not registered in the FD database, and analyzed the information on symptoms, treatments, and outcomes.RESULTS:
Thirty-eight of the 46 individuals with the 33 novel variants showed symptoms and received enzyme-replacement therapy and/or chaperone treatment.CONCLUSION:
Delayed diagnosis should be avoided in patients with FD. Our results will help clinicians diagnose FD and determine the appropriate treatment for patients with these variants.Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Pruebas Genéticas
/
Tamizaje Neonatal
/
Enfermedad de Fabry
Tipo de estudio:
Diagnostic_studies
/
Etiology_studies
/
Prognostic_studies
/
Risk_factors_studies
/
Screening_studies
Límite:
Child
/
Child, preschool
/
Female
/
Humans
/
Infant
/
Male
/
Newborn
País/Región como asunto:
Asia
Idioma:
En
Revista:
Mol Genet Genomic Med
Año:
2020
Tipo del documento:
Article
País de afiliación:
Japón