接种Mycobacterium bovis疫苗和随后的实验感染结果与乳牛中的维生素D状态的变化有关
Rachel L Lee1, Kieran G Meade2, Shelley G Rhodes3
1Institute for Global Food Security, School of Biological Sciences, Queen's University, Belfast, United Kingdom BT9 5DL.
JDS communications
|December 9, 2024
概括
维生素D (vitD) 可以提高牛对结核病 (TB) 的免疫力. 在接种疫苗的小牛中,更高的vitD水平与Mycobacterium bovis感染严重程度的降低相关,这表明结核病控制策略得到了改进.
科学领域:
- 兽医免疫学 兽医免疫学
- 营养免疫学 营养免疫学
- 牛结核研究 牛结核研究
背景情况:
- 关于维生素D在牛免疫反应中的作用的研究有限.
- 结核病 (TB) 仍然是全球牛群的一个重大问题.
- 了解影响疫苗有效性的因素对于疾病控制至关重要.
研究的目的:
- 调查维生素D (vitD) 水平,结核病疫苗接种和乳牛中Mycobacterium bovis感染结果之间的关联.
- 为了确定vitD度是否影响结核病理病理的严重程度感染后.
- 探索vitD,疫苗接种状态和像IFN-γ.等免疫标记物之间的关系.
主要方法:
- 一项涉及24只奶牛 (<8周大) 的研究,分为接种疫苗和未接种疫苗的组.
- 牛犊接种结核病疫苗或接受安慰剂,随后进行实验M. bovis感染.
- 测量了血清25-氧维生素D [25(OH) D]度,并评估了肺和淋巴结中的结核病理.
主要成果:
- 与未接种疫苗的对照对象相比,接种疫苗的小牛在感染后表现出明显更高的25...OH) D度.
- 无论接种疫苗,观察到25 ((OH) D水平和M. bovis驱动的病理学得分之间存在负线性关系.
- 在IFN-γ细胞因子的产生和vitD度之间没有发现相关性.
结论:
- 维生素D在培养牛群对Mycobacterium bovis的有效免疫力方面发挥着重要作用.
- 较高的维生素D水平与牛的结核病理学减少有关.
- 对维生素D与结核病相互作用的洞察力可能会优化牛群疫苗接种方案和结核病控制策略.
更多相关视频
相关概念视频
Vaccinations
44.1K
Overview
44.1K
Pulmonary Tuberculosis IV
828
Tuberculosis, more commonly referred to as TB, is an infectious disease stemming from Mycobacterium tuberculosis. While it primarily impacts the lungs, TB can also affect other body areas. Given its severity and global impact, timely and accurate diagnosis is crucial for controlling its spread and improving patient outcomes.
Several diagnostic approaches are used to detect TB. The conventional method is the Tuberculin Skin Test (TST), also known as the Mantoux test. However, this method has...
Several diagnostic approaches are used to detect TB. The conventional method is the Tuberculin Skin Test (TST), also known as the Mantoux test. However, this method has...
828
Development of Human Microbiota
61
The human microbiota begins developing at birth and undergoes continual change as we age. Infancy marks a critical period of microbial sensitivity, offering a “window of opportunity” during which beneficial microbes help mature the immune system. By age three, children typically develop a more stable and diverse microbial community. Newborns acquire microbes from their immediate environment; vaginal delivery favors maternal vaginal microbes, while cesarean births favor microbes from...
61


