RNA mis-splicing in children with myotonic dystrophy is associated with physical function.
Autor: | Hartman JM, Ikegami K, Provenzano M, Bates K, Butler A, Jones AS, Berggren KN, Dekdebrun J, McKay MJ, Baldwin JN, Cornett KMD, Burns J, Kiefer M, Johnson NE, Hale MA |
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Jazyk: | angličtina |
Zdroj: | BioRxiv : the preprint server for biology [bioRxiv] 2024 Jul 03. Date of Electronic Publication: 2024 Jul 03. |
DOI: | 10.1101/2024.07.03.600889 |
Abstrakt: | Objectives: Dysregulated RNA alternative splicing is the hallmark of myotonic dystrophy type 1 (DM1). However, the association between RNA mis-splicing and physical function in children with the most severe form of disease, congenital myotonic dystrophy (CDM), is unknown. Methods: 82 participants (42 DM1 adults & 40 CDM children) with muscle biopsies and measures of myotonia, motor function, and strength were combined from five observational studies. Data were normalized and correlated with an aggregate measure of alternative splicing dysregulation, [MBNL] Results: Myotonia (measured via vHOT) was significantly correlated with RNA mis-splicing in our cross-sectional population of all DM1 individuals; CDM participants alone displayed no myotonia despite a similar range of RNA mis-splicing. Measures of motor performance and muscle strength were significantly associated with [MBNL] Interpretation: Our findings establish significant correlations between skeletal muscle performance and a composite measure of alternative splicing dysregulation, [MBNL] |
Databáze: | MEDLINE |
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