Early Severe Cortical Involvement and Novel FUCA1 Mutations in a Pediatric Fucosidosis Case.

IF 1.6 4区 医学 Q4 GENETICS & HEREDITY Molecular Genetics & Genomic Medicine Pub Date : 2025-02-01 DOI:10.1002/mgg3.70070
Mar Jiménez de la Peña, Sara López-Martín, Daniel Martín Fernández-Mayoralas, Ana Laura Fernández-Perrone, Ana Jiménez de Domingo, Pilar Tirado, Beatriz Calleja-Pérez, Sara Álvarez, Jacobo Albert, Alberto Fernández-Jaén
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Abstract

Background: Biallelic pathogenic variants in the FUCA1 gene are associated with fucosidosis. This report describes a 4-year-old boy presenting with psychomotor regression, spasticity, and dystonic postures.

Methods and results: Trio-based whole exome sequencing revealed two previously unreported loss-of-function variants in the FUCA1 gene. Brain magnetic resonance imaging (MRI) findings included corpus callosum hypoplasia, white matter hypomyelination, and alterations in the globus pallidi, alongside markedly reduced cortical thickness.

Conclusions: These findings suggest that cortical atrophy may occur in the early stages of fucosidosis. Early diagnosis is imperative for genetic counseling, timely investigations, and initiating early therapeutic interventions to potentially mitigate more extensive brain involvement.

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一个小儿岩藻糖苷病病例的早期严重皮质受累和新型 FUCA1 基因突变
背景:FUCA1基因的双等位致病变异与聚焦菌病有关。本报告描述一名四岁男孩,表现为精神运动倒退、痉挛和张力障碍。方法和结果:基于三组的全外显子组测序揭示了FUCA1基因中两个先前未报道的功能丧失变体。脑磁共振成像(MRI)结果包括胼胝体发育不全、白质髓鞘发育不全、苍白球改变,同时皮质厚度明显减少。结论:这些发现提示皮质萎缩可能发生在聚焦病的早期阶段。早期诊断是必要的遗传咨询,及时调查,并启动早期治疗干预,以潜在地减轻更广泛的大脑病变。
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来源期刊
Molecular Genetics & Genomic Medicine
Molecular Genetics & Genomic Medicine Biochemistry, Genetics and Molecular Biology-Genetics
CiteScore
4.20
自引率
0.00%
发文量
241
审稿时长
14 weeks
期刊介绍: Molecular Genetics & Genomic Medicine is a peer-reviewed journal for rapid dissemination of quality research related to the dynamically developing areas of human, molecular and medical genetics. The journal publishes original research articles covering findings in phenotypic, molecular, biological, and genomic aspects of genomic variation, inherited disorders and birth defects. The broad publishing spectrum of Molecular Genetics & Genomic Medicine includes rare and common disorders from diagnosis to treatment. Examples of appropriate articles include reports of novel disease genes, functional studies of genetic variants, in-depth genotype-phenotype studies, genomic analysis of inherited disorders, molecular diagnostic methods, medical bioinformatics, ethical, legal, and social implications (ELSI), and approaches to clinical diagnosis. Molecular Genetics & Genomic Medicine provides a scientific home for next generation sequencing studies of rare and common disorders, which will make research in this fascinating area easily and rapidly accessible to the scientific community. This will serve as the basis for translating next generation sequencing studies into individualized diagnostics and therapeutics, for day-to-day medical care. Molecular Genetics & Genomic Medicine publishes original research articles, reviews, and research methods papers, along with invited editorials and commentaries. Original research papers must report well-conducted research with conclusions supported by the data presented.
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