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- 何 普明
- 京都大学食糧科学研究所
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- 山岡 (小関) 佐貴代
- 京都大学食糧科学研究所
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- 安本 教傳
- 京都大学食糧科学研究所
書誌事項
- タイトル別名
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- Effect of a High-protein Diet on Activities of Antioxidative Enzymes and Oxidized Protein Levels in Erythrocytes and Liver of Senescence-Accelerated Mice (SAMs).
- コウ タンパクシツショク オ トウヨシタ ロウカ ソクシン モデル マウス ノ
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抄録
A study was designed to assess the effects of a high-protein diet on the activities of several enzymes involved in the cellular antioxidative defence mechanism. Two strains of mice, a senescence-prone series (SAM-P/1) and a senescence-resistant series (SAM-R/1), were each divided into two groups, and fed either a control (20% casein) or a high-protein (40% casein) diet, respectively, for 11 months from the age of 2 months. Blood and liver were assayed for specific activities of catalase, superoxide dismutase (SOD), and glutathione peroxidase, and the levels of oxidized protein. Ingestion of the high-protein diet decreased the specific activity of catalase in the erythrocytes from both strains of mice, and decreased that of SOD in liver from both strains of mice; however the activity of SOD in erythrocytes from SAM-R/1 was increased. In accordance with these changes, ingestion of the high-protein diet produced an increase in the level of oxidized protein, compared with ingestion the control diet, in erythrocytes from SAM-R/1, and a much more significant increase in erythrocytes from SAM-P/1. There was also an increase in the level of oxidized protein in plasma from SAM-P/1. These results are largely, if not completely, consistent with the notion that high-protein ingestion accelerates the cellular aging process by augmenting the level of oxidized protein in erythrocytes.
収録刊行物
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- 日本栄養・食糧学会誌
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日本栄養・食糧学会誌 46 (3), 223-226, 1993
公益社団法人 日本栄養・食糧学会
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詳細情報 詳細情報について
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- CRID
- 1390282681269249152
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- NII論文ID
- 130000853934
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- NII書誌ID
- AN00311992
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- ISSN
- 18832849
- 02873516
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- NDL書誌ID
- 3830341
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
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- 抄録ライセンスフラグ
- 使用不可