生命の初期における抗生物質は,ネズミの大腸の微生物群と脂肪を変化させます
Ilseung Cho1, Shingo Yamanishi, Laura Cox
1Department of Medicine, New York University School of Medicine, New York, New York 10016, USA.
Nature
|August 24, 2012
まとめ
サブセラピーの抗生物質は,腸内微生物の組成と代謝機能を変化させることで成長を促します. 生命の初期に起こるこの操作は宿主の代謝に影響を与え,肥満が増加し,脂質調節が変化する.
科学分野:
- 微生物学 微生物学とは
- メタボリック科学 メタボリックサイエンス
- 動物科学 動物科学
背景:
- 低用量の抗生物質は,1950年代以来,農業における成長促進剤として使用されています.
- サブセラピーの抗生物質の投与が宿主生理に影響を与える正確なメカニズムは不明である.
研究 の 目的:
- サブセラピーの抗生物質投与が腸内微生物群の構造と代謝能力にどのように影響するか調査する.
- 抗生物質による肥満のマウスモデルを確立し,関連する代謝変化を分析する.
主な方法:
- 若いネズミにサブセラピーの抗生物質療法を行うこと.
- 腸内微生物の組成と遺伝子発現の変化の評価.
- ホストの代謝パラメータの分析,ホルモンレベル,短鎖脂肪酸,肝臓の脂質/コレステロール代謝を含む.
主要な成果:
- サブセラピーの抗生物質療法により,肥満が増加し,マウスの代謝関連のホルモンレベルが変化しました.
- 腸内微生物群において,有意な分類学的な変化が観察されました.
- 重要な炭水化物代謝遺伝子の変化,結腸短鎖脂肪酸の増加,肝臓の脂質とコレステロール代謝の変化が観察されました.
結論:
- サブセラピー的な抗生物質投与は,腸内微生物の組成と代謝機能を変化させます.
- 早期の抗生物質の操作は,宿主の代謝的ホメオスタシスを破壊し,肥満につながる可能性があります.
- この研究は,腸内マイクロバイオームの変化と代謝疾患との関連を理解するためのモデルを提供します.
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