ペグボビグラスティムを腸内投与すると,健康な産後乳牛の白血球数,粒細胞機能,子宮細胞集団が変化する
Dinesh Dadarwal1, Kira Crooks2, Patricia Lainetti1
1Large Animal Clinical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, Canada.
PloS one
|February 13, 2026
まとめ
再結合牛の粒細胞コロニー刺激因子 (rG-CSF) の単一投与は,白血球の数を増やし,産後乳牛の粒細胞機能を改善しました. これは,rG-CSFが,重篤な産後期間に免疫反応を強化する可能性があることを示唆しています.
科学分野:
- 獣医免疫学 獣医免疫学について
- 乳牛の繁殖 乳牛の繁殖
- 免疫調節とは
背景:
- 産後子宮感染症は,乳牛の主要な懸念事項です.
- 生まれながらの免疫機能の強化は,生殖結果を改善する可能性があります.
- 再結合牛の粒細胞コロニー刺激因子 (rG-CSF) は,潜在的な免疫調節剤である.
研究 の 目的:
- ホルシュタイン乳牛の白血球プロフィール,粒細胞機能,子宮細胞学に対するrG-CSFの産後単一投与の効果を評価する.
- rG-CSFが子宮の健康に悪影響を及ぼすことなく免疫細胞機能を強化するかどうかを判断する.
主な方法:
- 23頭のホルシュタイン牛は,rG-CSFまたは分娩後の塩溶液を受けた.
- 周回血液と子宮細胞学的サンプルを複数の時間点で採取した.
- 白血球数,粒細胞ファゴサイトーシス,酸化爆発能力が評価されました.
- ヴァギノスコピーと超音波により,生殖器系の状態が評価されました.
主要な成果:
- rG-CSFは,周辺血液における白血球と中性粒子の合計 (2〜3倍) と単細胞 (4倍) を有意に増加させた.
- グラヌロサイト酸化爆発とファゴサイト活性は,治療後の増加を示した.
- 子宮細胞学は,rG-CSFで治療された牛の中性粒子の増加とマクロファージを明らかにしました.
結論:
- rG-CSFの産後投与は一時的白血球症を誘発し,乳牛の粒細胞機能を改善する.
- 子宮中性粒子の増加とマクロファージは,rG-CSFが産後における局所免疫調節剤としての可能性を示唆しています.
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