{"title":"两例常染色体隐性脊髓小脑共济失调-8显示日本家庭中SYNE1的两种新变体。","authors":"Taijun Yunoki, Chika Matsuoka, Yosuke Osakada, Yusuke Fukui, Mami Takemoto, Ryuta Morihara, Toru Yamashita, Hiroyuki Ishiura","doi":"10.2169/internalmedicine.5602-25","DOIUrl":null,"url":null,"abstract":"<p><p>Autosomal recessive spinocerebellar ataxia-8 (SCAR8) is a neurodegenerative disorder caused by the biallelic pathogenic variants of SYNE1. It is characterized by slowly progressive cerebellar ataxia and atrophy. We identified two SCAR8 families using exome analyses and two novel variants, c.2127delG (p.Met709Ilefs) and c.15943G>T (p.Gly5315*), in SYNE1 (NM_182961.4). Pathogenic variants of SYNE1 cause various symptoms, including cerebellar ataxia, pyramidal tract disorders, and joint disorders, and the pathogenic variants discovered in this study were located in a region prone to cerebellar ataxia.</p>","PeriodicalId":520650,"journal":{"name":"Internal medicine (Tokyo, Japan)","volume":" ","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2025-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Two Cases of Autosomal Recessive Spinocerebellar Ataxia-8 Showing Two Novel Variants of SYNE1 in Japanese Families.\",\"authors\":\"Taijun Yunoki, Chika Matsuoka, Yosuke Osakada, Yusuke Fukui, Mami Takemoto, Ryuta Morihara, Toru Yamashita, Hiroyuki Ishiura\",\"doi\":\"10.2169/internalmedicine.5602-25\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>Autosomal recessive spinocerebellar ataxia-8 (SCAR8) is a neurodegenerative disorder caused by the biallelic pathogenic variants of SYNE1. It is characterized by slowly progressive cerebellar ataxia and atrophy. We identified two SCAR8 families using exome analyses and two novel variants, c.2127delG (p.Met709Ilefs) and c.15943G>T (p.Gly5315*), in SYNE1 (NM_182961.4). Pathogenic variants of SYNE1 cause various symptoms, including cerebellar ataxia, pyramidal tract disorders, and joint disorders, and the pathogenic variants discovered in this study were located in a region prone to cerebellar ataxia.</p>\",\"PeriodicalId\":520650,\"journal\":{\"name\":\"Internal medicine (Tokyo, Japan)\",\"volume\":\" \",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2025-06-05\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Internal medicine (Tokyo, Japan)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.2169/internalmedicine.5602-25\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Internal medicine (Tokyo, Japan)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.2169/internalmedicine.5602-25","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Two Cases of Autosomal Recessive Spinocerebellar Ataxia-8 Showing Two Novel Variants of SYNE1 in Japanese Families.
Autosomal recessive spinocerebellar ataxia-8 (SCAR8) is a neurodegenerative disorder caused by the biallelic pathogenic variants of SYNE1. It is characterized by slowly progressive cerebellar ataxia and atrophy. We identified two SCAR8 families using exome analyses and two novel variants, c.2127delG (p.Met709Ilefs) and c.15943G>T (p.Gly5315*), in SYNE1 (NM_182961.4). Pathogenic variants of SYNE1 cause various symptoms, including cerebellar ataxia, pyramidal tract disorders, and joint disorders, and the pathogenic variants discovered in this study were located in a region prone to cerebellar ataxia.
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