Identification of four novel variant in the AMHR2 gene in six unrelated Turkish families.
J Endocrinol Invest
; 44(6): 1301-1307, 2021 Jun.
Article
em En
| MEDLINE
| ID: mdl-33025551
ABSTRACT
PURPOSE:
Persistent Müllerian duct syndrome (PMDS) is characterized by the persistence of Müllerian structures in male with normal phenotype. Most cases occur as a result of mutations in the anti-Müllerian hormone (AMH) or AMHR2 genes. In this study, we aim to discuss the results of clinical, laboratory, and molecular genetic analysis of cases detected to have AMHR2 gene mutation.METHODS:
A total of 11 cases from 6 families were included in the study. AMHR2 gene mutation analyses were performed by sequencing of the coding exons and the exon-intron boundaries of the genes. The American College of Medical Genetics guidelines were used for the classification of the detected variants.RESULTS:
Six of the 11 cases were admitted due to bilateral undescended testes and five cases due to inguinal hernia (three transverse testicular ectopia and two hernia uterus inguinalis). All cases had normal AMH levels. Seven different variants were identified in the six families. The variants detected in four cases were considered novel (c.78del, c.71G > A, c.1460dup, c.1319A > G). Two of the novel variants were missense (exon 2 and exon 10) mutations, one was deletion (exon 2), and one duplication (exon 11).CONCLUSION:
We identified four novel mutations in the AMHR2 gene resulting in PMDS. Duplication mutation (c.1460dup) in the AMHR2 gene causing PMDS was demonstrated for the first time. The most important complications of PMDS are infertility and malignancy. Early diagnosis is vital to preventing malignancy. Vas deferens and vascular structures may be injured during orchiopexy. Therefore, patients should always be referred to experienced clinics.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Receptores de Fatores de Crescimento Transformadores beta
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Receptores de Peptídeos
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Hormônio Antimülleriano
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Transtorno 46,XY do Desenvolvimento Sexual
Tipo de estudo:
Diagnostic_studies
/
Etiology_studies
/
Guideline
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Prognostic_studies
/
Screening_studies
Limite:
Child, preschool
/
Humans
/
Male
País/Região como assunto:
Asia
Idioma:
En
Revista:
J Endocrinol Invest
Ano de publicação:
2021
Tipo de documento:
Article
País de afiliação:
Turquia