ssadh缺乏的人和小鼠中枢性髓鞘发育异常。

IF 3.9 2区 医学 Q1 CLINICAL NEUROLOGY
Itay Tokatly Latzer, Henry H C Lee, Edward Yang, Cesar Alves, Mariarita Bertoldi, Caitlyn Fung, Spencer V Steele, Eren Kule, Zijie Jin, Alexander Rotenberg, Jean-Baptiste Roullet, Phillip L Pearl
{"title":"ssadh缺乏的人和小鼠中枢性髓鞘发育异常。","authors":"Itay Tokatly Latzer, Henry H C Lee, Edward Yang, Cesar Alves, Mariarita Bertoldi, Caitlyn Fung, Spencer V Steele, Eren Kule, Zijie Jin, Alexander Rotenberg, Jean-Baptiste Roullet, Phillip L Pearl","doi":"10.1002/acn3.70148","DOIUrl":null,"url":null,"abstract":"<p><strong>Objectives: </strong>Succinic semialdehyde dehydrogenase deficiency (SSADHD) is an inherited metabolic disorder characterized by an accumulation of γ-aminobutyric (GABA). In addition to its synaptic role as an inhibitory neurotransmitter, GABA also plays an important role in myelination. We aimed to investigate the relationship between GABA and myelination abnormalities in SSADHD patients and the mouse model.</p><p><strong>Methods: </strong>Brain MRIs performed on 44 individuals (23 with SSADHD and 21 healthy controls) were independently reviewed by two neuroradiologists and scored using a disease-specific myelination scoring system. Inter-rater reliability (IRR) was assessed by the intraclass correlation coefficient. Myelination scores of SSADHD individuals were correlated with clinical, biochemical, magnetic resonance spectroscopy, and genetic data. Additionally, we investigated the expression of myelin-related genes in a mouse SSADHD model.</p><p><strong>Results: </strong>Dysmyelination in SSADHD patients was overall mild, but significantly greater than in healthy controls (p < 0.001). In SSADHD patients, lower myelination scores were significantly correlated with younger age (R = 0.775, p < 0.001) and higher plasma GABA (R = -0.722, p < 0.001) and γ-hydroxybutyric acid (GHB) (R = -0.683, p = 0.001). In SSADH-deficient mice, there was reduced expression of genes encoding myelin basic protein (p = 0.001), myelin-associated oligodendrocyte basic protein (p = 0.001), and mitochondrial aspartate transporter (p = 0.025).</p><p><strong>Interpretation: </strong>Excessive GABA and GHB, which characterize SSADHD and are further pronounced in younger SSADHD individuals, may account for delayed oligodendrocyte maturation and altered myelination dynamics in this disorder. Studying the properties of dysmyelination in this unique disorder enhances our understanding of GABA's mediating role on myelination and may contribute to monitoring disease progression and managing other white-matter neurological disorders.</p><p><strong>Trial registration: </strong>NCT03758521.</p>","PeriodicalId":126,"journal":{"name":"Annals of Clinical and Translational Neurology","volume":" ","pages":""},"PeriodicalIF":3.9000,"publicationDate":"2025-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Central Dysmyelination in SSADH-Deficient Humans and Mice.\",\"authors\":\"Itay Tokatly Latzer, Henry H C Lee, Edward Yang, Cesar Alves, Mariarita Bertoldi, Caitlyn Fung, Spencer V Steele, Eren Kule, Zijie Jin, Alexander Rotenberg, Jean-Baptiste Roullet, Phillip L Pearl\",\"doi\":\"10.1002/acn3.70148\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Objectives: </strong>Succinic semialdehyde dehydrogenase deficiency (SSADHD) is an inherited metabolic disorder characterized by an accumulation of γ-aminobutyric (GABA). In addition to its synaptic role as an inhibitory neurotransmitter, GABA also plays an important role in myelination. We aimed to investigate the relationship between GABA and myelination abnormalities in SSADHD patients and the mouse model.</p><p><strong>Methods: </strong>Brain MRIs performed on 44 individuals (23 with SSADHD and 21 healthy controls) were independently reviewed by two neuroradiologists and scored using a disease-specific myelination scoring system. Inter-rater reliability (IRR) was assessed by the intraclass correlation coefficient. Myelination scores of SSADHD individuals were correlated with clinical, biochemical, magnetic resonance spectroscopy, and genetic data. Additionally, we investigated the expression of myelin-related genes in a mouse SSADHD model.</p><p><strong>Results: </strong>Dysmyelination in SSADHD patients was overall mild, but significantly greater than in healthy controls (p < 0.001). In SSADHD patients, lower myelination scores were significantly correlated with younger age (R = 0.775, p < 0.001) and higher plasma GABA (R = -0.722, p < 0.001) and γ-hydroxybutyric acid (GHB) (R = -0.683, p = 0.001). In SSADH-deficient mice, there was reduced expression of genes encoding myelin basic protein (p = 0.001), myelin-associated oligodendrocyte basic protein (p = 0.001), and mitochondrial aspartate transporter (p = 0.025).</p><p><strong>Interpretation: </strong>Excessive GABA and GHB, which characterize SSADHD and are further pronounced in younger SSADHD individuals, may account for delayed oligodendrocyte maturation and altered myelination dynamics in this disorder. Studying the properties of dysmyelination in this unique disorder enhances our understanding of GABA's mediating role on myelination and may contribute to monitoring disease progression and managing other white-matter neurological disorders.</p><p><strong>Trial registration: </strong>NCT03758521.</p>\",\"PeriodicalId\":126,\"journal\":{\"name\":\"Annals of Clinical and Translational Neurology\",\"volume\":\" \",\"pages\":\"\"},\"PeriodicalIF\":3.9000,\"publicationDate\":\"2025-07-31\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Annals of Clinical and Translational Neurology\",\"FirstCategoryId\":\"3\",\"ListUrlMain\":\"https://doi.org/10.1002/acn3.70148\",\"RegionNum\":2,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CLINICAL NEUROLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Annals of Clinical and Translational Neurology","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1002/acn3.70148","RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CLINICAL NEUROLOGY","Score":null,"Total":0}
引用次数: 0

摘要

目的:琥珀半醛脱氢酶缺乏症(SSADHD)是一种以γ-氨基丁酸(GABA)积累为特征的遗传性代谢性疾病。除了作为一种抑制性神经递质在突触中的作用外,GABA在髓鞘形成中也起着重要作用。我们的目的是研究GABA与SSADHD患者和小鼠模型中髓鞘形成异常的关系。方法:由两名神经放射科医生对44名个体(23名SSADHD患者和21名健康对照者)进行脑mri检查,并使用疾病特异性髓鞘形成评分系统进行评分。等级间信度(IRR)由等级内相关系数评定。SSADHD个体的髓鞘形成评分与临床、生化、磁共振波谱和遗传数据相关。此外,我们研究了髓磷脂相关基因在小鼠SSADHD模型中的表达。结果:SSADHD患者的髓鞘发育异常总体上是轻微的,但明显高于健康对照组(p)。解释:过量的GABA和GHB是SSADHD的特征,在年轻的SSADHD个体中更为明显,可能是这种疾病中少突胶质细胞成熟延迟和髓鞘发育动力学改变的原因。研究这种独特疾病中髓鞘发育异常的特性,增强了我们对GABA在髓鞘形成中的介导作用的理解,并可能有助于监测疾病进展和管理其他白质神经系统疾病。试验注册:NCT03758521。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Central Dysmyelination in SSADH-Deficient Humans and Mice.

Objectives: Succinic semialdehyde dehydrogenase deficiency (SSADHD) is an inherited metabolic disorder characterized by an accumulation of γ-aminobutyric (GABA). In addition to its synaptic role as an inhibitory neurotransmitter, GABA also plays an important role in myelination. We aimed to investigate the relationship between GABA and myelination abnormalities in SSADHD patients and the mouse model.

Methods: Brain MRIs performed on 44 individuals (23 with SSADHD and 21 healthy controls) were independently reviewed by two neuroradiologists and scored using a disease-specific myelination scoring system. Inter-rater reliability (IRR) was assessed by the intraclass correlation coefficient. Myelination scores of SSADHD individuals were correlated with clinical, biochemical, magnetic resonance spectroscopy, and genetic data. Additionally, we investigated the expression of myelin-related genes in a mouse SSADHD model.

Results: Dysmyelination in SSADHD patients was overall mild, but significantly greater than in healthy controls (p < 0.001). In SSADHD patients, lower myelination scores were significantly correlated with younger age (R = 0.775, p < 0.001) and higher plasma GABA (R = -0.722, p < 0.001) and γ-hydroxybutyric acid (GHB) (R = -0.683, p = 0.001). In SSADH-deficient mice, there was reduced expression of genes encoding myelin basic protein (p = 0.001), myelin-associated oligodendrocyte basic protein (p = 0.001), and mitochondrial aspartate transporter (p = 0.025).

Interpretation: Excessive GABA and GHB, which characterize SSADHD and are further pronounced in younger SSADHD individuals, may account for delayed oligodendrocyte maturation and altered myelination dynamics in this disorder. Studying the properties of dysmyelination in this unique disorder enhances our understanding of GABA's mediating role on myelination and may contribute to monitoring disease progression and managing other white-matter neurological disorders.

Trial registration: NCT03758521.

求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
Annals of Clinical and Translational Neurology
Annals of Clinical and Translational Neurology Medicine-Neurology (clinical)
CiteScore
9.10
自引率
1.90%
发文量
218
审稿时长
8 weeks
期刊介绍: Annals of Clinical and Translational Neurology is a peer-reviewed journal for rapid dissemination of high-quality research related to all areas of neurology. The journal publishes original research and scholarly reviews focused on the mechanisms and treatments of diseases of the nervous system; high-impact topics in neurologic education; and other topics of interest to the clinical neuroscience community.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信