在临床脏捐赠和移植中脑死亡后补充系统的早期激活
Laura W D Knijff1,2, Mieke F van Essen2, Sandra W van der Kooij2
1LUMC Transplant Center, Leiden University Medical Center, Leiden, the Netherlands.
Transplantation
|September 23, 2025
概括
大脑死亡 (BD) 触发了补充激活. 延长的BD持续时间与系统补充激活的降低相关,影响移植功能并增加延迟移植功能风险.
科学领域:
- 腎臟病學 (nephrology) 是一種醫學.
- 免疫学 免疫学 免疫学
- 移植 移植 移植 移植
背景情况:
- 大脑死亡 (BD) 诱导炎症和补体激活.
- 关于BD持续时间对移植结果的影响尚未完全理解.
- 调查BD持续时间对捐赠脏补充剂激活的影响.
研究的目的:
- 确定脑死亡持续时间如何影响全身和局部补体激活.
- 为了将补充激活水平与移植后的移植功能相关联.
主要方法:
- 从120名脑死亡的捐赠者那里收集了血和脏活检.
- 将捐赠者分为短期 (≤14小时),中期 (15-22小时) 和长期 (≥23小时) BD 持续时间组.
- 使用ELISA量化血补充剂和通过免疫组织化学评估的组织补充剂.
主要成果:
- 与活体捐赠者相比,BD捐赠者的补充激活 (C4d,Bb,C3c,C5b-9) 在BD捐赠者中升高.
- 延长BD持续时间显示系统补充激活减少 (下C4d,Bb).
- 增加的Bb与延迟移植功能 (DGF) 的增加有关;C4d趋势朝着更高的DGF和更低的eGFR.
结论:
- 补充系统的激活发生在脑死亡管理的早期.
- 较长的BD持续时间与系统补充激活的降低有关.
- 增加补体激活会对短期的脏移植功能产生负面影响.
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