Friedreich's ataxia (FA) is a rare autosomal recessive disorder caused by GAA repeat expansion in the FXN gene, leading to impaired iron-sulfur (Fe-S) cluster biosynthesis and mitochondrial dysfunction. Fe-S clusters are essential for the function of several enzymes involved in steroid hormone production. While animal and cell culture studies suggest impaired steroidogenesis in FA, no clinical study has systematically evaluated this in human patients. This pilot study aims to investigate adrenal and gonadal steroidogenesis pathways in FA patients using LC-MS/MS-based steroid profiling. A total of 11 genetically confirmed FA patients followed at Istanbul Faculty of Medicine will be enrolled. Clinical data and serum samples will be collected and compared with those of 15 age- and sex-matched healthy controls. The findings are expected to enhance understanding of endocrine alterations in FA and guide future therapeutic approaches.
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Serum steroid hormone and intermediate metabolite levels
Timeframe: 3 months