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Abnormalities of creatine metabolism in Duchenne muscular dystrophy: Proposal for creatine-urea pathway in human skeletal muscle and demonstration of abnormal creatinase in Duchenne muscular dystrophy Kazuo MIYOSHI 1 , Akira TAIRA 1 , Kenzo YOSHIDA 1 , Katsuya TAMURA 1 , Shigetoshi UGA 1 , Masatoshi YAGITA 1 1The First Department of Internal Medicine, School of Medicine, Tokushima University pp.831-837
Published Date 1980/8/10
DOI https://doi.org/10.11477/mf.1431905203
  • Abstract
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 During a course of study on creatine metabolism in the patients with Duchenne muscular dystrophy (DMD), we found firstly the presence of creatin-ase activity as well as the presence of sarcosine dehydrogenase activity in human skeletal muscle. This prompts us to propose a new pathway of urea synthesis in man, i.e. creatine-urea pathway. We also found that creatinase in skeletal muscle of DMD patients has the kinetic behavior markedly different from that of normal creatinase. The molecular alteration of DMD creatinase is considered to be intimately related to the primary etiology of DMD.


Copyright © 1980, 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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