カドミウムへの曝露は,酸化ストレスと炎症を通して, brojler breeders の卵巣の老化を加速します

Peng Xu¹, Tong Xing¹, Lin Zhang¹

¹College of Animal Science and Technology, Key Laboratory of Animal Origin Food Production and Safety Guarantee of Jiangsu Province, Jiangsu Collaborative Innovation Center of Meat Production and Processing, Quality and Safety Control, Nanjing Agricultural University, Nanjing 210095, PR China.

Animal reproduction science

|February 12, 2026

まとめ

カドミウムへの曝露は,酸化ストレスと炎症を増加させることで, brojler breedersの卵巣の老化を加速します. この研究では,カドミウムが検出されました.

科学分野:

環境毒理学環境毒理学
生殖生物学生殖生物学
鳥類科学とは,鳥類科学のことである.

背景:

カドミウム (Cd) は,生殖に影響を及ぼすと知られている有毒な環境汚染物質です.
卵巣の老化に対するCdの特定の影響は十分に理解されていません.

研究の目的:

慢性的なカドミウム曝露が卵巣老化に及ぼす影響について, brojler breeders の卵巣老化への影響を調査する.
カドミウム誘発性卵巣老化の根本的なメカニズムを解明する.

主な方法:

brojler breedersにおける10週間のカドミウム被曝モデルを確立する.
産卵性能,卵品質,血清生化学パラメータ (AST,ALT,TG),卵巣組織病理,酸化ストレスマーカー (4-HNE,MDA,T-AOC,SOD,GSH-Px),炎症性遺伝子発現 (IFN-γ,IL-8,IL-17,NF-κB),アポプトシス (TUNEL,Bax,caspases),および老化マーカー (P21,P16,γ-H2AX,SIRT1,SIRT6) の評価を行う.

主要な成果:

カドミウムへの曝露は,産卵の性能と卵の品質を低下させた.
血清のASTとALTを上昇させ,TGを低下させ,卵巣ストロマの体重を減少させ,卵巣構造を損傷させ,卵泡数を減少させた.
カドミウムは卵巣の酸化ストレス,炎症,アポトーシスの増加を誘発し,重要な遺伝子とタンパク質の発現を変えることで細胞老化を促進しました.

結論:

カドミウム曝露は, brojler breedersの卵巣の老化を加速する.
この老化プロセスは,誘発された酸化ストレスと炎症によって引き起こされます.
発見は,カドミウム誘発の生殖毒性を軽減するための潜在的な治療目標を示唆しています.

キーワード:

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