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高脂肪低碳水化合物饮食与中枢神经系统自身免疫保护有关

Duan Ni1,2,3,4, Jian Tan1,2, Julen Reyes1,2,3,4

  • 1Charles Perkins Centre, The University of Sydney, D17 Charles Perkins Centre, Sydney, NSW, 2006, Australia.

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饮食中的脂肪摄入可能会防止多发性硬化症 (MS). 在小鼠模型中,高脂肪饮食减少了疾病的严重程度和炎症,这表明了预防多发性硬化症的潜在饮食干预措施.

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实验性自身免疫性脑膜炎 (EAE)高脂肪低碳水化合物饮食免疫代谢的免疫代谢.宏观营养素是主要的营养素多发性硬化症 (MS) 是一种疾病.

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科学领域:

  • 神经免疫学 神经免疫学
  • 营养科学 营养科学
  • 自免疫性疾病 自免疫性疾病

背景情况:

  • 多发性硬化症 (MS) 是一种炎症性和神经退行性中枢神经系统 (CNS) 疾病,可疑是自身免疫源.
  • 饮食因素越来越多地被认为是MS发展的潜在贡献者,但机制仍然不清楚.
  • 现有的研究缺乏对饮食对MS病变发生的影响的全面了解.

研究的目的:

  • 调查饮食大营养素供应与MS疾病负担之间的全球关联.
  • 为了确定高碳水化合物与高脂肪饮食对实验性自身免疫脑膜炎 (EAE) 的影响,MS的小鼠模型.
  • 阐明饮食对自身免疫反应的影响背后的代谢,转录和表观遗传机制.

主要方法:

  • 利用营养几何学来分析全球饮食模式和MS流行率.
  • 采用了一种实验性自身免疫脑膜炎 (EAE) 鼠标模型来评估饮食干预措施.
  • 分析了免疫细胞代谢,脂质储存,细胞因子生产 (IL-10) 和T细胞表型 (转录和表观遗传特征).

主要成果:

  • 全球分析表明,碳水化合物供应与MS负担之间存在正相关性,与脂肪供应有反向关系.
  • 在EAE模型中,高脂肪 (HF) 饮食提供了完全的保护,而高碳水化合物饮食加剧了疾病.
  • 肝炎饮食降低了神经炎症,促进了抗炎性表型,增加了免疫细胞中的脂质储存,并诱导了IL-10的产生. 它还将T细胞转移到一个耐受性表型.

结论:

  • 饮食中的脂肪摄入量,特别是高脂肪饮食,显示出对实验性自身免疫脑膜炎的显著保护作用.
  • 保护机制包括减少神经炎症,增强抗炎性免疫细胞简介和T细胞重编程.
  • 饮食操纵为预防和管理多发性硬化和潜在的其他自身免疫性疾病提供了一个有希望的,具有成本效益的战略.