{"title":"HCN1 p.Ser399Pro变体会导致癫痫性脑病和超难治性癫痫状态。","authors":"Yu Kobayashi, Jun Tohyama, Noriyuki Akasaka, Kei Yamada, Moemi Hojo, Eijun Seki, Masaki Miura, Noriko Soma, Takeshi Ono, Mitsuhiro Kato, Mitsuko Nakashima, Hirotomo Saitsu, Naomichi Matsumoto","doi":"10.1038/s41439-023-00247-8","DOIUrl":null,"url":null,"abstract":"<p><p>HCN1 is one of four genes encoding hyperpolarization-activated cyclic nucleotide-gated channels. The phenotypic spectrum associated with HCN1 variants ranges from neonatal developmental and epileptic encephalopathy to idiopathic generalized epilepsy. We report a Japanese patient with repetitive focal seizures and super-refractory status epilepticus since early infancy caused by a de novo HCN1 variant, NM_021072.4, c.1195T>C, p.(Ser399Pro). This variant might have a dominant-negative effect on channel function, leading to severe epileptic encephalopathy.</p>","PeriodicalId":36861,"journal":{"name":"Human Genome Variation","volume":"10 1","pages":"20"},"PeriodicalIF":1.0000,"publicationDate":"2023-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10290089/pdf/","citationCount":"0","resultStr":"{\"title\":\"The HCN1 p.Ser399Pro variant causes epileptic encephalopathy with super-refractory status epilepticus.\",\"authors\":\"Yu Kobayashi, Jun Tohyama, Noriyuki Akasaka, Kei Yamada, Moemi Hojo, Eijun Seki, Masaki Miura, Noriko Soma, Takeshi Ono, Mitsuhiro Kato, Mitsuko Nakashima, Hirotomo Saitsu, Naomichi Matsumoto\",\"doi\":\"10.1038/s41439-023-00247-8\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>HCN1 is one of four genes encoding hyperpolarization-activated cyclic nucleotide-gated channels. The phenotypic spectrum associated with HCN1 variants ranges from neonatal developmental and epileptic encephalopathy to idiopathic generalized epilepsy. We report a Japanese patient with repetitive focal seizures and super-refractory status epilepticus since early infancy caused by a de novo HCN1 variant, NM_021072.4, c.1195T>C, p.(Ser399Pro). This variant might have a dominant-negative effect on channel function, leading to severe epileptic encephalopathy.</p>\",\"PeriodicalId\":36861,\"journal\":{\"name\":\"Human Genome Variation\",\"volume\":\"10 1\",\"pages\":\"20\"},\"PeriodicalIF\":1.0000,\"publicationDate\":\"2023-06-23\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10290089/pdf/\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Human Genome Variation\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1038/s41439-023-00247-8\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"GENETICS & HEREDITY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Human Genome Variation","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1038/s41439-023-00247-8","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"GENETICS & HEREDITY","Score":null,"Total":0}
The HCN1 p.Ser399Pro variant causes epileptic encephalopathy with super-refractory status epilepticus.
HCN1 is one of four genes encoding hyperpolarization-activated cyclic nucleotide-gated channels. The phenotypic spectrum associated with HCN1 variants ranges from neonatal developmental and epileptic encephalopathy to idiopathic generalized epilepsy. We report a Japanese patient with repetitive focal seizures and super-refractory status epilepticus since early infancy caused by a de novo HCN1 variant, NM_021072.4, c.1195T>C, p.(Ser399Pro). This variant might have a dominant-negative effect on channel function, leading to severe epileptic encephalopathy.
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