脂肪组织功能的内毒素诱导的改变:牛代谢应激的途径
Miguel Chirivi1, G Andres Contreras2
1Department of Large Animal Clinical Sciences, Michigan State University, East Lansing, MI, USA.
Journal of animal science and biotechnology
|April 5, 2024
概括
产前乳牛面临代谢压力和内毒素,影响脂肪组织 (AT) 功能. 内毒素会恶化AT功能障碍,增加疾病风险,并需要新的干预措施.
科学领域:
- 兽医医学 兽医医学 兽医医学
- 动物生理学 动物生理学
- 动物的新陈代谢
背景情况:
- 产前乳牛经历负能量平衡,导致代谢压力和增加对疾病的易感性.
- 由细菌毒素引起的内毒素,在分娩期间很常见,并破坏新陈代谢功能和免疫反应.
- 脂肪组织 (AT) 功能障碍是乳牛代谢压力和内毒素症的关键特征.
研究的目的:
- 审查内毒素对周围乳牛脂肪组织 (AT) 功能的影响.
- 突出关于AT功能障碍的机制及其与周围疾病的联系的知识差距.
- 强调对与内毒性相关的炎症状况进行干预的需要.
主要方法:
- 文献综述综合了关于内毒素对牛AT的影响的当前知识.
- 分析了将代谢压力,内毒素和AT功能障碍联系在一起的机制.
- 确定研究缺口和治疗需求.
主要成果:
- 内毒素会诱导牛AT的炎症反应和脂解,释放出过多的自由脂肪酸.
- 长时间暴露于内毒素会损害脂肪细胞的胰岛素信号传递,脂质合成,并诱导AT中的氧化应激.
- 内毒症加剧了代谢压力,增加了奶牛炎症疾病的风险.
结论:
- 内毒素显著扰乱AT功能,导致周围乳牛的代谢和炎症性疾病.
- 需要进一步的研究来阐明内毒素诱导的AT功能障碍的确切机制.
- 制定有效的策略来预防和治疗内毒性病对乳牛健康至关重要.
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