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血清上腺素和胆固醇度作为霍尔斯坦牛维生素E缺乏症的新诊断生物标志物
Yuxi Song1, Xuejie Jiang1, Yu Hao1
1Heilongjiang Provincial Key Laboratory of Prevention and Control of Bovine Diseases, College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing 163319, China.
Animals : an open access journal from MDPI
|May 14, 2025
概括
乳牛缺乏维生素E会破坏新陈代谢. 上腺素和胆固醇被确定为早期检测和改善牛健康的准确生物标志物.
科学领域:
- 兽医医学 兽医医学 兽医医学
- 代谢学 代谢学 代谢学
- 动物营养 动物营养
背景情况:
- 乳牛中存在维生素E缺乏症 (VED),导致健康问题和经济损失.
- 在乳牛中,VED会导致氧化应激,免疫功能障碍和退行性疾病.
- 确定可靠的VED生物标志物对于及时干预和群体管理至关重要.
研究的目的:
- 调查乳牛中与VED相关的代谢变化.
- 为了确定用于早期诊断VED的新型血清生物标志物.
- 为了综合分析,结合非目标和目标代谢学.
主要方法:
- 使用非定位气体染色学-飞行时间质谱法 (GC-TOF-MS) 来分析代谢物.
- 采用向液体染色体质谱法 (LC-MS) 来量化关键代谢物.
- 应用二进制后勤回归和接收器操作特征 (ROC) 曲线分析用于生物标志物验证.
主要成果:
- 确定了31种不同的代谢物,显著影响氨基酸,脂质和能量代谢途径.
- 在VED奶牛中观察到高水平的诺阿皮内林,甘氨酸,氨酸和L-谷氨酸.
- 在受VED影响的奶牛中发现显著降低胆固醇度.
- 上腺素和胆固醇在VED检测方面表现出高的诊断准确性 (AUC>0.98).
结论:
- 乳牛中的VED严重破坏了代谢途径,特别是氨基酸和脂质代谢.
- 上腺素和胆固醇作为VED的高度准确和可靠的血清生物标志物.
- 使用这些生物标志物的早期检测可以改善疾病管理,牛健康和乳制品行业的经济结果.
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