饮食缺乏和补充对牧羊的肝脏的影响:从转录组和代谢组分析的见解
Xiwei Jin1, Lingbo Meng1, Zhi Qi1
1School of Life Sciences, Inner Mongolia University, Hohhot, China.
Frontiers in veterinary science
|July 4, 2024
概括
放牧羊的 (Se) 缺乏会损害肝功能和蛋白质合成. 补充Se改善了肝脏的Se水平,增强了蛋白质合成,并提高了羊的抗氧化和抗炎能力.
科学领域:
- 动物营养和新陈代谢
- 微量元素研究 微量元素研究
- 牲畜健康与生理学
背景情况:
- 矿物元素对动物健康至关重要,但由于料限制,像 (Se) 这样的缺陷在放牧牲畜中很常见.
- 缺乏可能会对生理功能产生负面影响,因此需要研究其对受影响地区牲畜的影响.
- 了解食对绵羊肝脏健康的影响对于改善在具有挑战性的牧场环境中的牲畜福祉至关重要.
研究的目的:
- 调查饮食 (Se) 缺乏和补充对蒙古牧羊羊的肝脏的影响.
- 分析Se对羊肝矿物质度,基因表达和代谢物概况的影响.
- 确定潜在的生物标志物,并了解Se在绵羊肝健康中的作用背后的机制.
主要方法:
- 28只放牧的蒙古武兰克羊被分为控制组和治疗组.
- 绵羊接受了低Se饮食,然后是高Se饮食 (治疗) 或标准饮食 (控制) 特定时间.
- 进行了肝脏矿物质度,转录组分析,非向代谢组分析,加权基因相关性网络分析,qPCR和ROC曲线验证.
主要成果:
- 饮食中的Se缺乏症显著降低了肝脏Se度,而补充剂则增加了它 (p < 0.05).
- 缺少Se会降低蛋白质合成效率,而补充Se会提高蛋白质合成效率,并发现了AGAP1,ERN1,MAL2,NFIC和RERG等关键基因.
- 代谢学研究表明,在补充Se时,减少了5-基三胺在Se缺乏和增加了5-基三胺 (p <0.05).
结论:
- 饮食中的Se缺乏会降低牧羊的肝脏抗氧化和抗炎能力.
- 补充Se可以增强放牧的Wu Ranke羊的肝脏抗氧化和抗炎能力.
- 这些发现提供了关于Se在羊肝健康中的作用的见解,有可能改善牲畜的福祉.
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