A de novo hexokinase 1 (HK1) variant presenting as Boucher-Neuhäuser syndrome.
Am J Med Genet A
; 191(2): 624-629, 2023 02.
Article
em En
| MEDLINE
| ID: mdl-36541585
ABSTRACT
Boucher-Neuhäuser syndrome (BNHS) is characterized by chorioretinal dystrophy, hypogonadotropic hypogonadism, and cerebellar dysfunction and atrophy. The disorder has been associated with biallelic pathogenic variants in the patatin-like phospholipase domain-containing protein 6 (PNPLA6) gene. We present an individual with a clinical diagnosis consistent with BNHS who lacked any PNPLA6 variants but on quartet family exome sequencing had a de novo variant in the hexokinase 1 (HK1) gene (NM_000188.2 [GRCh37/hg19] g.71139826G>A, c.1240G>A, p.Gly414Arg), suggesting genetic heterogeneity for BNHS. Longitudinal follow-up indicated neurological deterioration, neuropsychiatric symptoms, and progressive cerebellar atrophy. The BNHS phenotype overlaps and expands the known HK1 genotypic and phenotypic spectrum. Individuals with variants in HK1 should undergo evaluation for hypogonadotropic hypogonadism, potentially amenable to treatment.
Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Ataxias Espinocerebelares
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Hipogonadismo
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Síndrome de Klinefelter
Tipo de estudo:
Diagnostic_studies
Limite:
Humans
Idioma:
En
Revista:
Am J Med Genet A
Assunto da revista:
GENETICA MEDICA
Ano de publicação:
2023
Tipo de documento:
Article
País de afiliação:
Estados Unidos