早期のグリホサート曝露は腸内抗酸化物質の状態を悪化させ,化後の雛の成長を遅らせます
Minyang Zhang1, Xinyu Tian2, Xin Liu2
1College of Animal Science and Food Engineering, Jinling Institute of Technology, Nanjing, Jiangsu 210038, China; College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China.
Ecotoxicology and environmental safety
|August 22, 2025
まとめ
常見の除草剤であるグリホサートに 幼少期から曝露されることで 層の雛の成長,腸の健康,抗酸化防御に 負の影響を及ぼします この除草剤の曝露は,成長能力の低下と腸機能の障害をもたらし,有意な酸化ストレスが観察されました.
科学分野:
- 毒理学について
- 動物科学
- 環境 健康
背景:
- グリホサートは 世界で最も広く使用されている除草剤です
- 毒性学的効果を理解することは,特に早期発達の段階で,リスクを評価するために極めて重要です.
研究 の 目的:
- 生後初期にグリホサートに曝された結果が 成長,腸機能,産卵後のチキの抗酸化能力に及ぼす影響を調査する.
- 酸化ストレスや炎症経路を含む 根本的なメカニズムを解明する.
主な方法:
- 化中の卵のグリホサート処理
- 化後の0日と7日のサンプル採取
- 成長パラメータ,腸の形態,消化機能,炎症マーカー (TNF-α,IL- 1β,IL- 6),NF- kB経路,抗酸化状態 (T- SOD,MDA,GSH- px,Nrf2経路) の評価
主要な成果:
- グリホサートへの曝露は,化能力と体重を低下させ,フィード=ゲイン比を増加させ,平均日当たりゲインを減少させた.
- 腸の高さや消化/吸収機能が低下した.
- 炎症はTNF-α,IL- 1β,IL- 6の上昇調節とNF- kBの活性化によって誘発された.
- 抗酸化能力は最初は増加し,その後は減少し,7日目には有意な酸化ストレスが発生した.
結論:
- 早期のグリホサート曝露は腸の発達と機能を阻害し,卵子鶏の成長性能を低下させます.
- グリホサートは,Nrf2とNF- kBの信号伝達経路を活性化して,酸化ストレスと炎症を誘発する.
- 発見は生命の初期に除草剤にさらされる発育障害のリスクを評価するためのデータを提供します.
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