| Sulfur amino acids deficiency caused by grass pea diet plays an important role in the toxicity of l-β-ODAP by increasing the oxidative stress: Studies on a motor neuron cell line. | |
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MedLine Citation:
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PMID: 20691243 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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Neurolathyrism is a motor neuron disease caused by the overconsumption of grass pea (Lathyrus sativus L.) containing l-β-ODAP. The precise mechanism to cause motor neuron degeneration has yet to be elucidated, but should agree with the epidemiological backgrounds. Considering the amino acid content of the legume, and the epidemiological link with prolonged unbalanced nutrition, the shortage of sulfur amino acids methionine and cysteine could affect the toxicity of l-β-ODAP. We analyzed the effect of these amino acids in the media on the toxicity using primary motor neuron culture and a motor neuron cell line NSC-34. Deprivation of both methionine and cysteine exacerbated the toxicity of l-β-ODAP by 66% compared to the complete medium. The glutathione content of these cells was greatly decreased in sulfur amino acid-deprived medium. l-β-ODAP further lowered the content in the deprived media to be 32-44% of the controls compared to normal media being 62-74%. The increased motor neuron toxicity in this medium was neutralized by the addition of reduced glutathione ethyl ester or N-acetylcysteine suggesting the importance of the mitochondrial oxidative stress induced by l-β-ODAP under sulfur amino acid-deficient conditions. |
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Authors:
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Kuniko Kusama-Eguchi; Naduki Yoshino; Ai Minoura; Kazuko Watanabe; Tadashi Kusama; Fernand Lambein; Fumio Ikegami |
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Publication Detail:
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Type: Journal Article Date: 2010-08-04 |
Journal Detail:
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Title: Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association Volume: 49 ISSN: 1873-6351 ISO Abbreviation: Food Chem. Toxicol. Publication Date: 2011 Mar |
Date Detail:
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Created Date: 2011-02-08 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8207483 Medline TA: Food Chem Toxicol Country: England |
Other Details:
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Languages: eng Pagination: 636-43 Citation Subset: IM |
Copyright Information:
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Copyright © 2010 Elsevier Ltd. All rights reserved. |
Affiliation:
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Research Unit of Biochemistry, School of Pharmacy, Nihon University, 7-7-1 Narashinodai, Funabashi, Chiba 274-8555, Japan. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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