201. A rare case of monozygotic triplets with Duchenne muscular dystrophy
- Author
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Liang Wang, Ziyu Liao, Jinfu Lin, Cheng Zhang, Huan Li, Fu Xiong, and Yingyin Liang
- Subjects
musculoskeletal diseases ,0301 basic medicine ,congenital, hereditary, and neonatal diseases and abnormalities ,Weakness ,Duchenne muscular dystrophy ,Bioinformatics ,03 medical and health sciences ,0302 clinical medicine ,Prednisone ,Biopsy ,medicine ,Idebenone ,Joint Contracture ,Wasting ,Genetics (clinical) ,medicine.diagnostic_test ,biology ,business.industry ,medicine.disease ,030104 developmental biology ,Neurology ,Pediatrics, Perinatology and Child Health ,biology.protein ,Neurology (clinical) ,medicine.symptom ,Dystrophin ,business ,030217 neurology & neurosurgery ,medicine.drug - Abstract
Twins with Duchenne muscular dystrophy (DMD) have been widely studied. We report the first rare case of monozygotic triplets with DMD who shared consistent phenotypes, including delayed motor and language milestones, muscle wasting and weakness, joint contracture, and lumbar lordosis. Muscle magnetic resonance imaging and biopsy revealed the similar muscle injury characteristics and dystrophin absence. Short tandem repeat analysis confirmed monozygosity. A de novo mutation (exon 49-52 deletion) was found in the triplets but not in their mother. Treatment included prednisone, idebenone, and rehabilitation management. At the 2-year follow-up, motor function had deteriorated, and muscle fatty infiltration was more extensive and severe. Our case offers a unique opportunity for genetic and therapeutic research. Furthermore, it highlights the critical role of genetic factors in DMD phenotypes and provides a potential choice for treatment observations.
- Published
- 2021