冷保存的红细胞保持氧结合的全osteric 控制,当利用trehalose作为一个冷保护剂
Charles A Elder1, Jensen S Smith1, Mustafa Almosawi1
1Department of Biology, University of Louisville, Louisville, KY, 40292, USA.
Cryobiology
|November 18, 2023
概括
研究人员使用天然化合物三糖保存了红细胞 (RBC),实现了88%的恢复. 这种仿生方法为长期储存和输血RBC提供了一个有希望的替代方案,特别是在紧急情况下.
科学领域:
- 生物材料科学 生物材料科学
- 血液学 血液学 血液学
- 低温生物学 低温生物学
背景情况:
- 红细胞 (RBC) 输血至关重要,但由于降解而受到短储存保质期的限制.
- 当前的保存方法面临着效率和可用性方面的挑战.
研究的目的:
- 调查三糖作为一种冷保护剂,用于长期保存红细胞.
- 评估三糖在冷保存后维持红细胞活力和功能方面的疗效.
主要方法:
- 猪红细胞被冷保存,在细胞外溶液中使用三.
- 采用了快速冷却 (液浸泡) 和解 (55°C) 的协议.
- 评估了红细胞恢复,血液溶解和血红蛋白的氧结合特性.
主要成果:
- 用300毫米三糖快速冷却产生88%的红细胞恢复和14%的血液溶解.
- 冷保存的红细胞保留了功能性血红蛋白,具有与对照组相似的氧结合特性.
- 通过2,3-bisphosphoglycerate,特雷哈洛斯保存的红细胞维持了全调节.
结论:
- 糖是一种可行的红细胞冷保护剂,可以替代甘油.
- 这种方法可能消除了洗步骤的需要,简化了输血程序.
- 基于trehalose的红细胞冷保存可以提高紧急输血准备.
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