Preserved fertility in a patient with a 46,XY disorder of sex development due to a new heterozygous mutation in the NR5A1/SF-1 gene: evidence of 46,XY and 46,XX gonadal dysgenesis phenotype variability in multiple members of an affected kindred.
Horm Res Paediatr
; 78(2): 119-26, 2012.
Article
em En
| MEDLINE
| ID: mdl-22907560
ABSTRACT
In humans, steroidogenic factor 1 (NR5A1/SF-1) mutations have been reported to cause gonadal dysgenesis, with or without adrenal failure, in both 46,XY and 46,XX individuals. We have previously reported extreme within-family variability in affected 46,XY patients. Even though low ovarian reserve with preserved fertility has been reported in females harboring NR5A1 gene mutations, fertility has only been observed in one reported case in affected 46,XY individuals. A kindred with multiple affected members presenting gonadal dysgenesis was studied. Four 46,XY individuals presented severe hypospadias at birth, one of them associated with micropenis and cryptorchidism. The other 3 developed spontaneous male puberty, and 1 has fathered 5 children. Four 46,XX patients presented premature ovarian failure (one of them was not available for the study) or high follicle-stimulating hormone levels. Mutational analysis of the NR5A1 gene revealed a novel heterozygous mutation, c.938GâA, predicted to cause a p.Arg313Hys amino acid change. A highly conserved amino acid of the ligand-binding domain of the mature protein is affected, predicting abnormal protein function. We confirm that preserved fertility can be observed in patients with a 46,XY disorder of sex development due to heterozygous mutations in the NR5A1 gene.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Disgenesia Gonadal 46 XX
/
Fator Esteroidogênico 1
/
Transtorno 46,XY do Desenvolvimento Sexual
/
Fertilidade
/
Mutação
Tipo de estudo:
Prognostic_studies
Limite:
Adult
/
Child, preschool
/
Female
/
Humans
/
Male
Idioma:
En
Revista:
Horm Res Paediatr
Assunto da revista:
ENDOCRINOLOGIA
/
PEDIATRIA
Ano de publicação:
2012
Tipo de documento:
Article
País de afiliação:
Argentina