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Cx32 유전자 돌연변이를 보인 CMTX와 PMP22 유전자 중복을 보인 CMT1A 환자들의 임상 및 전기생리학적 특성 비교

Other Titles
 Comparison of Clinical and Electrophysiological Characteristics between CMTX with Cx32 Missense Mutation and CMT1A with PMP22 Duplication 
 최병옥  ;  정기화  ;  선우일남  ;  신상희  ;  김승민  ;  박기덕 
 Journal of the Korean Neurological Association, Vol.22(3) : 226-234, 2004 
Journal Title
Journal of the Korean Neurological Association
Issue Date
Charcot-Marei-Tooth disease ; Cx32 ; PMP22 ; CMTX ; Mutation
Background: Charcot-Marie-Tooth (CMT) disease is a clinically and genetically heterogeneous disorder. Connexin32 Cx32) gene mutations on Xq13.1 cause the X-linked form of CMT disease, and PMP22 gene duplication on 17p11.2-p12 causes CMT1A. The aim of the present study is to determine the clinical and electrophysiological characteristics between X-linked CMT patients with Cx32 missense mutations and CMT1A patients with PMP22 duplications. Methods: We screened for 17p11.2-p12 duplication, and for point mutations in Cx32 genes of 48 Korean CMT families. Both neurological examination and nerve conduction studies were performed in all patients. Results: Frequency of CMTX 6.3%) in our study was similar to Japanese, and was lower than those in European peoples. CMTX patients displayed no man-to-man transmission, and had cranial nerve involvement. CMTX patients showed more wide range of motor and sensory nerve conduction velocities than CMT1A patients. We found one family with axonal neuropathy and two families with demyelinating neuropathy in CMTX patients. Conclusions: Our findings suggest that mutations in Cx32 are probably less frequent in Asian CMT patients than European patients, and CMTX neuropathy is intermediary between CMT1 and CMT2. In addition, inheritance pattern and cranial nerve involvement are useful in differentiating CMTX from CMT1A with duplication.
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1. College of Medicine (의과대학) > Dept. of Neurology (신경과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Seung Min(김승민) ORCID logo https://orcid.org/0000-0002-4384-9640
Sunwoo, Il Nam(선우일남)
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