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산성 알파 글루코시다아제가 감소한 근육병에서 Whole Exome Sequencing을 이용한 DYSF 유전자 복합이형접합돌연변이의 규명

Other Titles
 Identification of Compound Heterozygous DYSF Mutations Using Whole Exome Sequencing in a Myopathy with Decreased Acid-Alpha Glucosidase Activity 
Authors
 박형준  ;  최지현  ;  최영철  ;  박기덕 
Citation
 Korean Journal of Neuromuscular Disorders (대한신경근육질환학회지), Vol.7(2) : 79-84, 2015 
Journal Title
Korean Journal of Neuromuscular Disorders(대한신경근육질환학회지)
ISSN
 2092-5077 
Issue Date
2015
Keywords
Limb-girdle muscular ; dystrophy ; DYSF ; Glycogen storage ; disease type II ; Whole exome sequencing
Abstract
Background: This study was designed to identify the genetic cause in myopathy family with decreased acid-alpha glucosidase activity.

Methods: Clinical and laboratory features of two affected family members were analyzed. Then, whole exome sequencing (WES) was performed.

Results: The proband (a 54-year-old woman) and her sister (a 57-year-old woman) presented to our neurologic clinic with proximal muscle weakness. They recalled very active and sporty life since adolescence. At the late teens, they first noticed difficulty in climbing stairs. Neurological examination revealed muscle weakness and atrophies of proximal muscles, predominantly at lower limbs. Electromyography revealed chronic myopathic finding and serum creatine kinase level was elevated in the proband. In addition, serum acid-alpha glucosidase activities were decreased in two patients. WES identified compound heterozygous mutations (c.5713C>T and c.937+1G>A) in DYSF, which were previously reported to be an underlying cause of limb-girdle muscular dystrophy 2B.

Conclusions: We identified compound heterozygous DYSF mutations in a myopathy family with decreased acid-alpha glucosidase activity. This result demonstrated the usefulness of WES for the diagnosis of limb-girdle muscular dystrophy.
Files in This Item:
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Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Neurology (신경과학교실) > 1. Journal Papers
Yonsei Authors
Choi, Young Chul(최영철) ORCID logo https://orcid.org/0000-0001-5525-6861
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/157101
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