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Okumura G, Nakamura K, Seyama R, Uchiyama Y, Shinagawa J, Nishio S, Ikeda J, Takayama S, Kodaira M, Kosho T, Takumi Y, Matsumoto N, Sekijima Y. Auditory Neuropathy Spectrum Disorder Progressing with Motor and Sensory Neuropathy Caused by an ATP1A1 Variant. Intern Med 2024; 63:1005-1008. [PMID: 37558483 PMCID: PMC11045389 DOI: 10.2169/internalmedicine.1935-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 07/03/2023] [Indexed: 08/11/2023] Open
Abstract
We encountered a 27-year-old Japanese woman with sensorineural deafness progressing to motor and sensory neuropathy. At 16 years old, she had developed weakness in her lower extremities and hearing impairment, which gradually deteriorated. At 22 years old, combined audiological, electrophysiological, and radiological examination results were consistent with auditory neuropathy spectrum disorder (ANSD). Genetic analyses identified a previously reported missense variant in the ATP1A1 gene (NM_000701.8:c.1799C>G, p.Pro600Arg). Although sensorineural deafness has been reported as a clinical manifestation of ATP1A1-related disorders, our case suggested that ANSD may underlie the pathogenesis of deafness in ATP1A1-related disorders. This case report broadens the genotype-phenotype spectrum of ATP1A1-related disorders.
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Affiliation(s)
- Gaku Okumura
- Department of Medicine (Neurology & Rheumatology), Shinshu University School of Medicine, Japan
| | - Katsuya Nakamura
- Department of Medicine (Neurology & Rheumatology), Shinshu University School of Medicine, Japan
- Center for Medical Genetics, Shinshu University Hospital, Japan
| | - Rie Seyama
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Japan
- Department of Obstetrics and Gynecology, Juntendo University, Japan
| | - Yuri Uchiyama
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Japan
- Department of Rare Disease Genomics, Yokohama City University Hospital, Japan
| | - Jun Shinagawa
- Department of Otorhinolaryngology Head and Neck Surgery, Shinshu University School of Medicine, Japan
| | - Shinya Nishio
- Department of Otorhinolaryngology Head and Neck Surgery, Shinshu University School of Medicine, Japan
- Department of Hearing Implant Sciences, Shinshu University School of Medicine, Japan
| | - Junji Ikeda
- Department of Medicine (Neurology & Rheumatology), Shinshu University School of Medicine, Japan
| | - Shohei Takayama
- Department of Medicine (Neurology & Rheumatology), Shinshu University School of Medicine, Japan
| | - Minori Kodaira
- Department of Medicine (Neurology & Rheumatology), Shinshu University School of Medicine, Japan
| | - Tomoki Kosho
- Center for Medical Genetics, Shinshu University Hospital, Japan
- Department of Medical Genetics, Shinshu University School of Medicine, Japan
| | - Yutaka Takumi
- Department of Otorhinolaryngology Head and Neck Surgery, Shinshu University School of Medicine, Japan
| | - Naomichi Matsumoto
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Japan
| | - Yoshiki Sekijima
- Department of Medicine (Neurology & Rheumatology), Shinshu University School of Medicine, Japan
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