类似胰岛素的生长因子-1 改善了驼 (Camelus Dromedarius) 卵子细胞的体外介质恢复
1Department of Clinical Sciences, College of Veterinary Medicine, King Faisal University, Alahsa, Saudi Arabia.
Animal reproduction
|July 7, 2023
概括
毛囊吸收减少了驼驼体内成熟过程中的卵细胞退化. 胰岛素样生长因子I (IGF-I) 显著增强了卵细胞的成熟和质量,改善了体外成熟率 (IVM).
科学领域:
- 生殖生物学 生殖生物学
- 驼研究研究 驼研究
- 在体外受精 (IVF)
背景情况:
- 大象驼卵细胞表现出高的体外成熟率 (IVM),但在体外受精 (IVF) 后的胚胎细胞生产率较低.
- 优化IVM对于提高驼IVF效率和繁殖成功至关重要.
研究的目的:
- 研究卵细胞采集方法 (卵泡吸收与切片) 对驼IVM的影响.
- 评估将胰岛素类生长因子I (IGF-I) 添加到驼IVM的成熟介质的效果.
- 评估这些因素对卵细胞质量和退化率的影响.
主要方法:
- 实验I:在卵泡吸收和切片方法之间比较卵细胞成熟和退化率.
- 实验II:评估IVM期间IGF-I补充剂对卵细胞成熟,退化和质量标志物 (例如,甲素B活性) 的影响.
- 卵细胞成熟被核阶段 (元相II-MII) 评估,退化被量化.
主要成果:
- 与切片 (对照) 相比,毛囊吸收减少了卵细胞退化率,但没有影响核成熟的完成.
- 补充IGF-I显著增加了卵细胞达到MII的百分比 (71.9%与IGF-I相比48.4%没有).
- 治疗IGF-I减少了卵细胞退化 (10.4%与IGF-I相比23.6%没有) 和减少了甲素B活性,表明卵细胞质量有所改善.
结论:
- 毛囊吸收是一种有益的卵细胞采集方法,用于减少驼IVM期间的退化.
- IGF-I显著提高了驼蛋细胞的体外成熟率和质量.
- 这些发现为辅助生殖技术提供了改善驼卵细胞成熟的策略.
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