含有阿斯塔丁的多乳酸-甘油酸纳米颗粒通过抗氧化作用改善性结肠炎
Chunmei Li1,2, Yu Zhou3, Meng Yuan1
1College of Tourism and Culinary Science, Yangzhou University, Yangzhou, China.
亚斯丁 (AST) 纳米颗粒通过提高稳定性和生物可用性来有效治疗结肠炎. AST@PLGA显示,作为一种功能性食物,它有望用于管理炎症状况.
科学领域:
- 生物材料科学 生物材料科学
- 纳米技术 纳米技术
- 药理学 药理学是指药理学的学科.
背景情况:
- 阿斯塔克桑丁 (AST) 是一种强大的抗氧化剂胡卜素,由于水溶性差和生物可用性低,面临着局限性.
- 开发有效的传递系统对于利用AST的治疗潜力至关重要.
研究的目的:
- 研究AST装载PLGA纳米颗粒 (AST@PLGA) 抑制性结肠炎 (UC) 的疗效.
- 在大肠炎的小鼠模型中阐明AST@PLGA的潜在机制.
主要方法:
- AST@PLGA纳米粒子的表征 (粒子大小,PDI,泽塔潜力,稳定性).
- 在体外评估AST释放和抗氧化能力.
- 建立急性结肠炎的小鼠模型,以评估AST@PLGA的治疗效果.
- 生物化学和西方斑点分析以测量氧化应激标记物 (SOD,MDA) 和炎症细胞因子 (TNF-α,IL-1β,IL-6) 以及信号蛋白 (P38,ERK).
主要成果:
- AST@PLGA纳米粒子表现出有利的物理化学特性 (尺寸:66.78 nm,PDI:0.247,泽塔电位:-9.8 mV) 和14天的稳定性.
- AST@PLGA证明了AST的持续释放,并保持了其抗氧化功效.
- 在体内研究表明,AST@PLGA显著降低了MDA,TNF-α,IL-1β和IL-6水平,同时增加了SOD水平.
- AST@PLGA降低了P38和ERK信号通路的表达.
结论:
- AST@PLGA纳米颗粒具有卓越的稳定性,并且在缓解急性结肠炎方面表现出显著的治疗效果.
- 这些发现表明AST@PLGA作为一种功能性食品成分的潜力,用于管理炎症性肠道疾病.
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