ArticleAmerican journal of medical genetics. Part A2023
A de novo hexokinase 1 (HK1) variant presenting as Boucher-Neuhäuser syndrome.
Article in American journal of medical genetics. Part A, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02450851 (Clinical and Genetic Evaluation of Patients With Undiagnosed Disorders Through the Undiagnosed Diseases Network), which is not on this map. Cited by 4 papers.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Clinical and Genetic Evaluation of Patients With Undiagnosed Disorders Through the Undiagnosed Diseases Network
Who cites it
4 citing papers in PubMed, 6 citations in OpenAlex.
- Recent Advances in Visual Dysfunction and Ocular Biomarkers in Neurological Disorders.Eye and brain · 2025Review
- Autosomal dominantGenetics in medicine open · 2025Article
- Two case reports of a novel missense mutation in the PNPLA6 gene in two siblings with chorioretinal dystrophy, hypogonadotropic hypogonadism, and cerebellar ataxia.Molecular biology reports · 2024Article
- Clinical, Neuroimaging, and Metabolic Footprint of the Neurodevelopmental Disorder Caused by MonoallelicNeurology. Genetics · 2024Article
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Authors and funding
9 authors at 2 institutions in 1 country.
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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.
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