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Cytopathology of amyotrophic lateral sclerosis Shinsuke Kato 1 , Masako Kato 2 , Eisaku Ohama 1 1Department of Neuropathology, Institute of Neurological Sciences, Faculty of Medicine, Tottori University 2Division of Pathology, Tottori University Hospital Keyword: ブニナ小体 , スケイン様封入体/球状硝子様封入体 , レビー小体様硝子様封入体/アストロサイト内硝子様封入体 , 神経細胞内ユビキチン化封入体 pp.357-368
Published Date 2004/6/10
DOI https://doi.org/10.11477/mf.1431100265
  • Abstract
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 We have reviewed cytopathology in amyotrophic lateral sclerosis(ALS)patients. The essential cytopathology of ALS is neuronal death in the upper and lower motor neuron system. Motoneurons affected by ALS show characteristic cytopathological structures. Bunina bodies and skein-like hyaline inclusions/round hyaline inclusions in the spinal anterior horn cells are the pathological diagnostic markers of ALS. Identification of granule-coated fibrils which are essential components of Lewy body-like hyaline inclusions/astrocytic hyaline inclusions leads to diagnosis of superoxide dismutase 1(SOD1)-mutated familial ALS:a granule-coated fibril is a morphological hallmark of SOD1gene mutation. Intracytoplasmic ubiquitinated inclusions in granule neurons in fascia dentate of Ammon's horn are thought to be a diagnostic marker of ALS with dementia. Considered in connection with the fact that certain residual anterior horn cells show up-regulation of cell-survival system to protect themselves from cell death in the presence of ALS stress, the presence of the residual motoneurons in ALS is one of ALS cytopathology.


Copyright © 2004, 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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