イソフラボンを含む大豆タンパク質が,閉経後の女性の認知機能,骨のミネラル密度,血脂質に及ぼす影響:ランダム化制御試験
Sanne Kreijkamp-Kaspers1, Linda Kok, Diederick E Grobbee
1The Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, The Netherlands.
JAMA
|July 9, 2004
まとめ
大豆イソフラボンサプリメントは,60歳以上の健康な閉経後の女性の認知機能,骨のミネラル密度,または血脂質を改善しませんでした. この研究では,これらの老化マーカーに対して,毎日の大豆タンパク質摂取から有意な利点が見つかりませんでした.
科学分野:
- ゲロントロジーはゲロントロジーの学科です.
- 栄養科学とは,栄養科学である.
- 女性の健康 女性の健康
背景:
- 閉経後のエストロゲン療法には利点がありますが,リスクもあります.
- 大豆に含まれるイソフラボンは,エストロゲンに似た性質を持つ植物化合物で,リスクが少なくても利点がある可能性があります.
- 閉経後の健康のためのより安全な代替品としての大豆イソフラボンの調査は正当化されています.
研究 の 目的:
- イソフラボンを含む大豆タンパク質が閉経後の女性の認知機能を高めるかどうかを判断する.
- 閉経後の女性の骨のミネラル密度に対する大豆イソフラボンの影響を評価する.
- 閉経後の女性の血脂質プロファイルに対する大豆イソフラボンの効果を評価する.
主な方法:
- 60歳から75歳までの健康な閉経後の女性202人を対象とした12ヶ月のダブルブラインド,ランダム化,プラセボ対照試験です.
- 参加者は,毎日イソフラボン (99 mg) と大豆タンパク質,またはミルクタンパク質プラセボを摂取しました.
- 認知機能,骨のミネラル密度 (股関節と腰椎),および血脂質を測定した.
主要な成果:
- 175人の女性が研究を完了し,順守は良好でした.
- 12ヶ月後の認知機能において,大豆とプラセボ群の間で有意な差異は観察されなかった.
- 骨のミネラル密度と血脂質レベルも,プラセボと比較して大豆グループでは有意な改善を示さなかった.
結論:
- イソフラボンを含む大豆タンパク質のサプリメントは,60歳以上の健康な閉経後の女性の認知機能を改善しません.
- この介入は,骨のミネラル密度や血脂質の有意な変化をもたらさなかった.
- これらの発見は,この集団におけるこれらの特定の健康マーカーの改善のために大豆イソフラボンを使用することを支持しません.
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