Suppression of Methionine-Induced Hyperhomocysteinemia by Dietary Eritadenine in Rats

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The effect of dietary eritadenine on the plasma homocysteine concentration was investigated in methionine-induced hyperhomocysteinemic rats. The rats were fed on the control or eritadenine-supplemented (50 mg/kg) diet for 10 d. The animals were then injected with saline or methionine at a level of 100 or 300 mg/kg of body weight, and sacrificed 2 h or a more appropriate time after injection. The methionine injection increased the post-2 h concentration of plasma homocysteine in a dose-dependent manner in the control rats, this increase being significantly suppressed in the eritadenine-fed rats. This effect persisted up to 8 h after the methionine injection. The hepatic concentrations of <I>S</I>-adenosylmethionine and <I>S</I>-adenosylhomocysteine were increased by eritadenine, whereas the hepatic homocysteine concentration was inversely decreased. The cystathionine β-synthase activity in the liver was increased by eritadenine. It is suggested from these results that eritadenine might suppress the methionine-induced increase in plasma homocysteine concentration by dual mechanisms: slowing the homocysteine production from <I>S</I>-adenosylhomocysteine and increasing the removal of homocysteine due to the enhanced activity of cystathionine β-synthase.

収録刊行物

  • Bioscience, biotechnology, and biochemistry  

    Bioscience, biotechnology, and biochemistry 70(8), 1987-1991, 2006-08-23 

    Japan Society for Bioscience, Biotechnology, and Agrochemistry

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各種コード

  • NII論文ID(NAID)
    10018528457
  • NII書誌ID(NCID)
    AA10824164
  • 本文言語コード
    ENG
  • 資料種別
    NOT
  • ISSN
    09168451
  • NDL 記事登録ID
    8040663
  • NDL 雑誌分類
    ZR7(科学技術--農林水産--農産) // ZR2(科学技術--生物学--生化学) // ZP1(科学技術--化学・化学工業)
  • NDL 請求記号
    Z53-G223
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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