{"title":"少年/成人型半乳糖唾液中毒伴无血缘的纯合CTSA变异。","authors":"Machiko Toki, Kazushige Tsunoda, Tetsumin So, Motomichi Kosuga, Torayuki Okuyama, Masashi Miharu, Tomonobu Hasegawa, Kazuki Yamazawa","doi":"10.1038/s41439-025-00324-0","DOIUrl":null,"url":null,"abstract":"<p><p>Here we report a Japanese patient with juvenile/adult-type galactosialidosis carrying a homozygous c.692+3A>G CTSA variant. Comprehensive genetic analyses including exome sequencing, chromosomal microarray and homozygosity mapping supported biallelic inheritance of this variant and suggested a founder effect in the Japanese population. Clinically, the patient exhibited typical features of the juvenile/adult-type galactosialidosis, with growth impairment noted during adolescence as a less conspicuous but relevant observation.</p>","PeriodicalId":36861,"journal":{"name":"Human Genome Variation","volume":"12 1","pages":"20"},"PeriodicalIF":1.0000,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12474988/pdf/","citationCount":"0","resultStr":"{\"title\":\"Juvenile/adult-type galactosialidosis with a homozygous CTSA variant without consanguinity.\",\"authors\":\"Machiko Toki, Kazushige Tsunoda, Tetsumin So, Motomichi Kosuga, Torayuki Okuyama, Masashi Miharu, Tomonobu Hasegawa, Kazuki Yamazawa\",\"doi\":\"10.1038/s41439-025-00324-0\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>Here we report a Japanese patient with juvenile/adult-type galactosialidosis carrying a homozygous c.692+3A>G CTSA variant. Comprehensive genetic analyses including exome sequencing, chromosomal microarray and homozygosity mapping supported biallelic inheritance of this variant and suggested a founder effect in the Japanese population. Clinically, the patient exhibited typical features of the juvenile/adult-type galactosialidosis, with growth impairment noted during adolescence as a less conspicuous but relevant observation.</p>\",\"PeriodicalId\":36861,\"journal\":{\"name\":\"Human Genome Variation\",\"volume\":\"12 1\",\"pages\":\"20\"},\"PeriodicalIF\":1.0000,\"publicationDate\":\"2025-09-26\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12474988/pdf/\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Human Genome Variation\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1038/s41439-025-00324-0\",\"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/s41439-025-00324-0","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"GENETICS & HEREDITY","Score":null,"Total":0}
Juvenile/adult-type galactosialidosis with a homozygous CTSA variant without consanguinity.
Here we report a Japanese patient with juvenile/adult-type galactosialidosis carrying a homozygous c.692+3A>G CTSA variant. Comprehensive genetic analyses including exome sequencing, chromosomal microarray and homozygosity mapping supported biallelic inheritance of this variant and suggested a founder effect in the Japanese population. Clinically, the patient exhibited typical features of the juvenile/adult-type galactosialidosis, with growth impairment noted during adolescence as a less conspicuous but relevant observation.