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Background <p>Spastic ataxia Charlevoix-Saguenay is a rare autosomal recessive neurodegenerative disorder characterized by a combination of spasticity, ataxia, and peripheral neuropathy. Although predominantly affecting individuals of French-Canadian descent, the geographic distribution of spastic ataxia Charlevoix-Saguenay-associated cases is expanding.</p> Case presentation <p>This study presents the case of a 3-year-old Uruguayan girl with suspected autosomal recessive spastic ataxia of Charlevoix-Saguenay, demonstrating the disease’s presence in previously unreported locations. Exome sequencing analysis revealed two compound heterozygous variants in the sacsin molecular chaperone gene, one of which was novel.</p> Conclusion <p>This report highlights the genomic heterogeneity of spastic ataxia Charlevoix-Saguenay and emphasizes the importance of investigating the genetic landscape of the disease in diverse populations. Understanding the underlying genetic alterations and their geographic distribution contributes to improved diagnosis, management, and potentially targeted therapies for individuals affected by spastic ataxia Charlevoix-Saguenay worldwide.</p>

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Identification of a novel SACS gene mutation leading to spastic ataxia Charlevoix-Saguenay type: a case report

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年8月19日

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  • Víctor Raggio,
  • Andrea Rey,
  • Camila Simoes,
  • Florencia Birriel,
  • Soledad Rodriguez,
  • Kateryn Bentancor,
  • Alejandra Tapié,
  • Lucía Spangenberg

摘要

Background

Spastic ataxia Charlevoix-Saguenay is a rare autosomal recessive neurodegenerative disorder characterized by a combination of spasticity, ataxia, and peripheral neuropathy. Although predominantly affecting individuals of French-Canadian descent, the geographic distribution of spastic ataxia Charlevoix-Saguenay-associated cases is expanding.

Case presentation

This study presents the case of a 3-year-old Uruguayan girl with suspected autosomal recessive spastic ataxia of Charlevoix-Saguenay, demonstrating the disease’s presence in previously unreported locations. Exome sequencing analysis revealed two compound heterozygous variants in the sacsin molecular chaperone gene, one of which was novel.

Conclusion

This report highlights the genomic heterogeneity of spastic ataxia Charlevoix-Saguenay and emphasizes the importance of investigating the genetic landscape of the disease in diverse populations. Understanding the underlying genetic alterations and their geographic distribution contributes to improved diagnosis, management, and potentially targeted therapies for individuals affected by spastic ataxia Charlevoix-Saguenay worldwide.