Increased Plasma Homocysteine Concentration in Rats from a Low Casein Diet

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Rats were fed on a 10% casein (10C) diet, 30% casein (30C) diet, 10C+0.5% methionine diet, or 30C+0.5% methionine diet for 14 d to investigate the relationship between the dietary protein level and plasma homocysteine concentration. The plasma homocysteine concentration was significantly higher in the rats fed on the 10C diet than in the rats fed on the 30C diet, and this phenomenon persisted even under the condition of methionine supplementation. The activity of hepatic cystathionine β-synthase (CBS) was significantly lower in the rats fed on the 10% casein diets than in the rats fed on the 30% casein diets, irrespective of methionine supplementation. This is the first demonstration of a low-protein diet increasing the plasma homocysteine concentration in experimental animals. It is suggested that the decreased CBS activity might be associated, at least in part, with the hyperhomocysteinemia caused by the low-casein diet.

収録刊行物

  • Bioscience, biotechnology, and biochemistry

    Bioscience, biotechnology, and biochemistry 70(12), 3050-3053, 2006-12-23

    Japan Society for Bioscience, Biotechnology, and Agrochemistry

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各種コード

  • NII論文ID(NAID)
    10018524239
  • 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
    8596918
  • 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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