在患有发烧性疾病的儿科患者与败血症的不同线粒体呼吸概况
Laura F Sartori1,2, Elena Tsemberis3, Tyne Hernandez3
1Department of Emergency Medicine, Children's Hospital of Philadelphia, Philadelphia, PA, USA. sartoril@chop.edu.
Pediatric research
|August 2, 2024
概括
线粒体储备呼吸能力 (SRC) 在患有发烧性疾病和败血症的儿童中减少. 不同的线粒体形状和人口统计学影响了这些发现,需要进一步的研究来区分.
科学领域:
- 儿科重症监护医药 儿科重症监护医药
- 线粒体生理学线粒体生理学
- 细胞生物能学 细胞生物能学
背景情况:
- 线粒体功能障碍与败血症相关的器官衰竭有关.
- 在没有败血症的发烧性疾病中存在线粒体变化的存在仍然没有特征.
研究的目的:
- 与败血症和非感染的对照组相比,研究发烧性疾病的儿童的线粒体变化.
- 评估线粒体储备呼吸能力 (SRC) 和含量在发烧性疾病.
主要方法:
- 在急诊室 (ED) 进行前性研究,对重症监护室 (ICU) 患者进行二次分析.
- 在外周血液单核细胞中通过呼吸计测量线粒体氧气消耗 (SRC).
- 使用酸盐合成酶 (CS) 和线粒体与核DNA比率 (mtDNA:nDNA) 评估线粒体含量.
主要成果:
- 与对照组相比,在发烧性疾病和败血症中观察到较低的SRC (p < 0.05).
- 发烧性疾病显示基础呼吸增加,而败血症显示最大脱呼吸减少.
- 与对照和败血症相比,发烧性疾病中观察到较低的CS活性和mtDNA:nDNA比率.
结论:
- 线粒体SRC在发烧性疾病和败血症中都会减少,由不同的线粒体形状和人口统计学因素影响.
- 需要进一步调查,以确定线粒体形状是否可以区分发烧性疾病和早期败血症.
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