Monday, October 28, 2024

Utility of Optical Genome Mapping in Repeat Disorders

Mutlu MB, Karakaya T, Çelebi HBG, Duymuş F, Seyhan S, Yılmaz S, Yiş U, Atik T, Yetkin MF, Gümüş H. Utility of Optical Genome Mapping in Repeat Disorders. Clin Genet. 2024 Oct 22. doi: 10.1111/cge.14633. Epub ahead of print. PMID: 39435674. 

We evaluated 19 patients with a prediagnosis of repeat disorders and explained the molecular etiology of 9 of them with OGM (5 patients with Facioscapulohumeral Muscular Dystrophy (FSHD), 2 patients with Friedreich's Ataxia (FA), 1 patient with Fragile X Syndrome (FXS), and 1 patient with Progressive Myoclonic Epilepsy 1A (EPM1A)). We confirmed OGM results with more widely used fragment analysis techniques. This study highlights the utility of OGM as a diagnostic tool for repeat expansion and contraction diseases such as FA, FXS, EPM1A, and FSHD.