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Sphingolipid Changes in Rat Cerebral Cortex During Focal Ischemia:How Does Ceramide Accumulate in an Ischemic Condition? Masaru Kubota 1 , Noriko Tomukai 1 , Shigemi Kitahara 1 , Tadayoshi Nakagomi 1 , Akira Tamura 1 , Harumi Hisaki 2 , Hiroyuki Shimasaki 2 , Nobuo Ueta 2 1Department of Neurosurgery, Teikyo University School of Medicine 2Department of Biochemistry, Teikyo University School of Medicine Keyword: focal ischemia , ceramide , sphingomyelin , cerebroside , ganglioside , sphingolipids pp.756-761
Published Date 1995/8/1
DOI https://doi.org/10.11477/mf.1406900824
  • Abstract
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Levels of ceramide, sphingomyelin, cerebroside and gangliosides were determined in rat cerebral cortex during focal ischemia produced by middle cerebral artery occlusion. Ceramide began to increase at 6 hours of ischemia and increased to 4.5 folds at 96 hours. Aminolinked fatty acids in in-creased ceramide were composed solely of non-hydroxy fatty acids, and stearic acid was the most prominent. Sphingomyelin, whose aminolinked fatty acids were mostly stearic acid, decreased in a time-dependent manner and became about a half of controls at 96 hours.


Copyright © 1995, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 2185-405X 印刷版ISSN 0006-8969 医学書院

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