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皮质脏组织的部分氧气压取决于氧化低温机器 perfusion 过程中活性氧化的百分比

Thomas Prudhomme¹, Tom Darius², Stephan Levy¹

¹Nantes Université, CHU Nantes, INSERM, Centre for Research in Transplantation and Translational Immunology, Nantes, France.

Artificial organs

|December 6, 2024

概括

在低温机器输液 (HMPO2) 期间较高的氧气水平显著改善了脏的保存. 在HMPO2期间100%的氧化导致了猪DCD模型中最高的组织氧气水平和ATP重合成.

科学领域:

器官的保存器官的保存
移植研究移植研究
机器 perfusion 技术机器 perfusion 技术机器 perfusion 技术机器 perfusion 技术机器 perfusion 技术机器 perfusion 技术机器 perfusion 技术

背景情况:

氧化低温机器输液 (HMPO2) 在脏保存方面表现有前途.
对HMPO2的最佳氧化水平尚未确定.
这项研究调查了 perfusion 期间的不同氧度.

研究的目的:

为了比较不同氧化水平 (0%,21%,50%,100%) 在22小时HMPO2.2期间的疗效.
为了确定氧气水平对组织氧气部分压力 (tpO2) 的影响.
评估氧化对代谢恢复的影响,特别是ATP重合成.

主要方法:

来自DCD模型的猪脏是在60分钟的温暖缺血后获得的.
脏被随机分为五组:静态冷藏,没有氧气的HMP和21%,50%或100%氧气的HMPO2.
皮质tPO2被测量为主要结局.

主要成果:

与静态冷藏相比,连续的HMPO2显著改变了皮质的tPO2.
tpO2水平直接取决于 perfusion 期间使用的氧的百分比.
与其他组相比,100%的氧化导致显著更高的tpO2和优越的ATP重合成.

结论:

连续的HMPO2有效地改变了脏组织的氧化.
在HMPO2期间,较高的氧度与改善的tPO2正相关.
高氧水平 (50%和100%) 在脏保存期间更好地支持有氧新陈代谢和ATP复合.

关键词:

这就是ATPATPATP ATP.活性氧化低温机器 perfusion perfusion 是一种活性氧化低温机器.低温机器 perfusion perfusion 是一个低温机器 perfusion 是一个低温机器.组织氧气部分压力

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