铁缺乏和抗生素对宿主新陈代谢的双重影响:组织水平分析
Shannon Shoff1, Sydney Thomas1, Peng Ji1
1Department of Nutrition, UC Davis, One Shields Avenue, Davis, CA 95616, USA.
Metabolites
|August 27, 2025
概括
抗生素会加剧缺铁对婴儿新陈代谢和大脑发育的影响. 这项研究表明,联合的ID和抗生素暴露改变了组织代谢和神经发育途径.
科学领域:
- 生物化学
- 儿童营养
- 发展神经科学
背景情况:
- 铁缺乏症在儿童早期很普遍,增加了感染风险和抗生素的使用.
- 抗生素可以加剧ID的负面健康影响,特别是在发育中的组织中.
- 了解ID和抗生素对组织水平新陈代谢的联合影响至关重要.
研究的目的:
- 在缺铁期间研究抗生素的组织特异性影响.
- 评估对各种组织中的代谢和mTOR信号通路活动的影响.
- 为了确定抗生素是否会加重ID引起的代谢和发育障碍.
主要方法:
- 在小猪中通过食操纵和拒绝铁引发铁缺乏症 (ID).
- 一组ID小猪接受了为期3天的谱胺和 gentamicin (ID + Abx) 疗程.
- 在脏,肝脏,骨肌肉和海马体中评估了代谢概况和mTOR通路蛋白活性.
主要成果:
- ID + Abx 影响了能量代谢,增加了症和周围组织的氧化应激.
- hippocampal 神经递质合成途径受到 ID 和 ID + Abx 的显著影响.
- 抗生素治疗提高了ID + Abx小猪海马的mTOR通路蛋白活性.
结论:
- 在缺铁期间使用抗生素会导致超出仅仅因缺铁而引起的代谢变化.
- 发展中的海马体特别容易受到ID和抗生素的联合影响.
- 这种组合可能对婴儿和儿童的神经发育和认知产生长期影响.
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