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Calcium channel antibodies and Lambert-Eaton myasthenic syndrome Masakatsu MOTOMURA 1 1The First Department of Internal Medicine, Nagasaki University School of Medicine Keyword: Lambert-Eaton筋無力症候群 , 電位依存性カルシウムチャネル , VGCC , 抗VGCC抗体 pp.268-276
Published Date 1997/4/10
DOI https://doi.org/10.11477/mf.1431900945
  • Abstract
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 The Lambert-Eaton myasthenic syndrome (LEMS) is an autoimmune disorder of neuromuscular transmission in which IgG autoantibodies lead to presynaptic voltage-gate calcium channel (VGCC) loss, or as a paraneoplastic disorder in association with small cell lung carcinoma. A diagnostic radioimmunoassay to detect anti-P/Q-type VGCC antibodies using 19-w-conotoxin MVIIC can be detected in 85-95% of LEMS patients. This result suggests that antibodies to P/Q-type calcium channels are the principal pathogenic factor.


Copyright © 1997, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1243 印刷版ISSN 0001-8724 医学書院

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