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Corticosteroid Therapy for Duchenne Muscular Dystrophy: Improvement of Psychomotor Function.
MedLine Citation:
PMID:  24138948     Owner:  NLM     Status:  Publisher    
BACKGROUND: Of the numerous clinical trials for Duchenne muscular dystrophy, only the corticosteroid prednisolone has shown potential for temporal improvement in motor ability. In this study, the effects of prednisolone on intellectual ability are examined in 29 cases of Duchenne muscular dystrophy because little information has been reported. And also, motor functions and cardiac functions were evaluated.
METHODS: The treated group was administered prednisolone (0.75 mg/kg) orally on alternate days and the compared with the untreated control group. Gene mutations were investigated. The patients were examined for intelligence quotient adequate for age, brain natriuretic peptide, creatine kinase, and manual muscle testing before treatment and after the period 6 months to 2 years.
RESULTS: Intelligence quotient scores of the treated increased to 6.5 ± 11.9 (mean ± standard deviation) were compared with the controls 2.1 ± 4.9 (P = 0.009). Intelligence quotient scores of the patients with nonsense point mutations improved significantly (21.0 ± 7.9) more than those with deletion or duplication (1.9 ± 9.0; P = 0.015). Motor function, such as time to stand up, of those treated improved significantly and brain natriuretic peptide level was reduced to a normal level after treatment in 15 patients (73%).
CONCLUSIONS: Our results demonstrate the effectiveness of prednisolone in improving intellectual impairment as well as in preserving motor function and brain natriuretic peptide levels. We presume that prednisolone has a read-through effect on the stop codons in the central nervous systems of Duchenne muscular dystrophy because intelligence quotient of point mutation case was improved significantly.
Yuko Sato; Akemi Yamauchi; Mari Urano; Eri Kondo; Kayoko Saito
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-10-15
Journal Detail:
Title:  Pediatric neurology     Volume:  -     ISSN:  1873-5150     ISO Abbreviation:  Pediatr. Neurol.     Publication Date:  2013 Oct 
Date Detail:
Created Date:  2013-10-21     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8508183     Medline TA:  Pediatr Neurol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2013 Elsevier Inc. All rights reserved.
Affiliated Field of Genetic Medicine, Division of Biomedical Engineering and Science, Graduate Course of Medicine, Graduate School of Tokyo Women's Medical University, Tokyo, Japan; Institute of Medical Genetics, Tokyo Women's Medical University, Tokyo, Japan.
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