莱昂氨酸对羊卵细胞成熟和伴生遗传胚胎发育的影响
Panpan Wei1, Jing Wang1, Hengbin Yu1
1College of Animal Science and Technology, Shihezi University, Shihezi, China.
Reproduction in domestic animals = Zuchthygiene
|March 5, 2024
概括
莱昂素 (LEO) 通过减少氧化应激来改善羊卵细胞成熟和胚胎发育. 这种类化合物增强了谷氨 (GSH) 水平和线粒体潜力,同时降低了活性氧物种 (ROS).
科学领域:
- 生殖生物学 生殖生物学
- 生物化学 生物化学
- 动物科学动物科学
背景情况:
- 列昂 (LEO) 是来自列昂 (Leonurus spp.) 的化物,具有抗氧化,抗炎和抗丧性质.
- 这些特征表明,LEO有潜力减轻活性氧物种 (ROS) 的损害,从而改善卵细胞成熟和胚胎发育.
- 卵细胞成熟和早期胚胎发育对于成功的动物繁殖至关重要.
研究的目的:
- 为了研究莱昂素 (LEO) 对羊卵细胞体外成熟的影响.
- 评估LEO对绵羊早期胚胎发育的影响.
- 为了确定最佳的LEO度来增强这些生殖参数.
主要方法:
- 绵羊卵细胞在体外培养,具有不同度的LEO (0,10,20和40微米).
- 评估了卵细胞成熟率,谷氨 (GSH) 水平,线粒体膜潜力和活性氧物种 (ROS) 水平.
- 对抗氧化酶 (CAT,SOD1,GPX3) 和亡标记物 (Bax/Bcl-2比率,Caspase-3) 的基因表达分析进行.
- 早期胚胎发育的评估是通过测量裂变和胚囊细胞分裂率,随后对八细胞胚胎中的GSH,ROS,抗氧化基因表达和亡标记进行了分析.
主要成果:
- 20μM的LEO度被发现是卵细胞成熟率的最佳.
- LEO治疗 (20μM) 显著增加了GSH水平和线粒体膜潜力,同时降低了卵细胞中的ROS水平.
- 抗氧化剂基因表达 (CAT,SOD1) 被上调,而亡标志物 (Bax/Bcl-2比率,Caspase-3) 在LEO治疗的卵细胞中被下调.
- 实验室胚胎发育在20微米LEO组中显示出明显更高的裂变和胚胎囊率.
- 对GSH,线粒体潜力,ROS,抗氧化基因表达和亡标记物有类似的积极影响,在用20μMLEO治疗的八细胞胚胎中观察到.
结论:
- 莱昂素 (LEO) 有效地减轻羊卵细胞和早期胚胎中的氧化应激.
- 补充LEO显著提高卵细胞成熟率和早期胚胎发育能力.
- 20μMLEO的最佳度提高了细胞内抗氧化能力,并减少了细胞亡,使其成为在绵羊养殖中辅助生殖技术的有希望的代理.
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