Analysis of a patient with severe Hemophilia A due to a large duplication of F8 gene / 中华医学遗传学杂志
Chinese Journal of Medical Genetics
; (6): 72-75, 2022.
Article
de Zh
| WPRIM
| ID: wpr-928365
Bibliothèque responsable:
WPRO
ABSTRACT
OBJECTIVE@#To report on a case with severe hemophilia A (HA) due to a large duplication of F8 gene.@*METHODS@#Inversion detection, Sanger sequencing, and multiplex ligation-dependent probe amplification (MLPA) were used to detect the mutation in the proband and his mother.@*RESULTS@#The patient, a 7-year-old boy, was diagnosed with severe HA at 8 months. No inhibitor was developed over 150 exposure days. Intronic inversion detection and Sanger sequencing have failed to identify pathogenic variants, while MLPA revealed a large duplication [Ex 1_22 dup (2 copies)] in the proband, for which his mother was a carrier [Ex 1_22 dup (3 copies)]. Large duplications of the F8 gene have so far been found in 24 HA patients, all of whom had a severe phenotype, only one had a history of inhibitors.@*CONCLUSION@#Large duplications of F8 gene are associated with severe HA. The diagnostic rate for HA may be increased by MLPA.
Texte intégral:
1
Base de données:
WPRIM
Sujet principal:
Phénotype
/
Facteur VIII
/
Introns
/
Duplication de gène
/
Hémophilie A
/
Mutation
Type d'étude:
Prognostic_studies
Limites:
Child
/
Humans
/
Male
Langue:
Zh
Journal:
Chinese Journal of Medical Genetics
Année:
2022
Type de document:
Article