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Duchenne and Becker muscular dystrophies are rare diseases that receive limited attention in our field. The objective of this study was to implement the Multiplex Ligation-dependent Probe Amplification technique (MLPA) and to demonstrate that it has advantages over the Multiplex Polymerase Chain Reaction (Multiplex PCR) technique. Samples from 40 individuals with a presumptive diagnosis of Duchenne and Becker muscular dystrophies were analyzed: first by Multiplex PCR and then by MLPA. Fifteen individuals with causal deletions were detected with Multiplex PCR, while the MLPA technique was able to diagnose 21 individuals, four duplications, and 17 deletions. In conclusion, the MLPA technique can detect mutations of the exon deletion and duplication type, yielding a larger number of molecular diagnoses due to alterations in the DMD gene.
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http://dx.doi.org/10.17843/rpmesp.2019.363.4085 | DOI Listing |
Expert Rev Cardiovasc Ther
September 2025
Department of Cardiac Surgery, Thomas Jefferson University, Philadelphia, PA, USA.
Background: Heart transplant (HTx) in dystrophy patients has been shown to have a similar survival to cardiomyopathy from other causes, but postoperative rehabilitation remains an issue. This study aimed to review and analyze the reports in the literature to determine whether pre- and post-transplant functional status along with wheelchair dependence in dystrophy patients can influence post-HTx outcomes.
Research Design And Methods: Relevant databases were queried for all case reports and case series regarding HTx in patients with dystrophy-associated cardiomyopathy published in the literature.
Neurology
October 2025
Department of Neurology, Leiden University Medical Center, the Netherlands.
Background And Objectives: Slow and highly variable disease progression in Becker muscular dystrophy (BMD) stresses the need to develop sensitive outcome measures for clinical trials. We evaluated responsiveness of different outcome measures in adult patients with BMD over 3 years and explored if the sensitivity of outcome measures can be increased by selecting on phenotype or genotype.
Methods: Genetically confirmed patients with BMD were recruited via the Dutch Dystrophinopathy Database.
J Hum Genet
August 2025
Department of Neuromuscular Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Kodaira, Japan.
In recent years, whole-exome and whole-genome sequencing have been increasingly applied for the genetic diagnosis of muscle diseases. However, standard short-read sequencing often fails to detect pathogenic variants in some inherited muscle diseases, such as Duchenne/Becker muscular dystrophy (DMD/BMD), facioscapulohumeral muscular dystrophy (FSHD), oculopharyngeal muscular dystrophy (OPMD), and oculopharyngodistal myopathy (OPDM). This review outlines the genetic diagnostic approaches for these conditions, with a particular focus on novel analytical approaches for genetic diagnosis.
View Article and Find Full Text PDFJ Neuromuscul Dis
August 2025
Department of Human Genetics, Gilbert and Rose-Marie Chagoury School of Medicine, Lebanese American University, Byblos, Lebanon.
Background: Duchenne muscular dystrophy (DMD) is a severe X-linked neuromuscular disorder caused by pathogenic variants in the gene, leading to dystrophin deficiency and progressive muscle degeneration. Thousands of variants with diverse types have been reported in , contributing to a broad clinical spectrum. While typically associated with severe phenotypes, pathogenic DMD variants may also cause Becker muscular dystrophy (BMD), a milder form with later-onset muscle weakness, or isolated dilated cardiomyopathy with minimal skeletal muscle involvement.
View Article and Find Full Text PDFFront Pediatr
August 2025
Department of Pediatrics, Division of Pediatric Neurology, Sidra Medicine, Doha, Qatar.
Background: Duchenne muscular dystrophy (DMD) and Becker muscular dystrophy (BMD) are rare X-linked neuromuscular disorders that typically begin in childhood and progress to functional decline, loss of ambulation, and early death due to cardiac or respiratory failure.
Objective: To describe the landscape of DMD and BMD in Qatar, including demographics, genetics, disease progression, risk factors, co-morbidities, and outcomes in patients aged 3-30 years, and compare findings with international data.
Methods: We retrospectively reviewed records of all genetically confirmed or biopsy-supported cases of DMD and BMD between 2018 and 2024 at Sidra Medicine, the sole pediatric tertiary center in Qatar.