仅仅是一匙糖就能提高耐受性
1Department of Pathology, Committee on Immunology, The University of Chicago, Chicago, IL 60637, USA.
Cell
|June 17, 2017
概括
通过保持血糖正常, 这可以通过铁素实现,该铁素会中和损害肝脏葡萄糖的离子.
科学领域:
- 生物化学
- 免疫学
- 生理学
背景情况:
- 生物的生存取决于感染期间的耐力.
- 败血症是一个重大威胁, 挑战生理稳定.
- 代谢失调,特别是葡萄糖代谢,是严重感染的标志.
研究的目的:
- 研究生物体耐受严重感染的机制,
- 阐明铁代谢和氧化应激在败血症生存中的作用.
- 确定费里丁在减轻败血症引起的代谢损伤中的保护作用.
主要方法:
- 我们使用了老鼠毒症模型.
- 监测生理参数,包括血糖水平 (血糖常态).
- 评估费里对肝脏组织中铁离子无活化和自由基产生的影响.
主要成果:
- 尽管存在败血症,但小鼠成功维持血糖正常.
- 费里丁显示出无活性化铁 (Fe2+) 离子的能力.
- 费里对Fe2+的非活化防止了自由基的诱导,这些自由基会破坏肝脏的葡萄糖生成.
结论:
- 通过控制铁的平衡,费里丁在败血症的生存中起着至关重要的作用.
- 通过铁素介导的铁失活维持正常血糖是关键的生存机制.
- 向费里或铁代谢可以为败血症提供治疗策略.
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