通过减少拉力聚合物减轻败血症后缺血的缓解
Denis E Bragin1,2, O A Bragina3, A O Trofimov4
1Lovelace Biomedical Research Institute, Albuquerque, NM, USA. dbragin@lovelacebiomedical.org.
Advances in experimental medicine and biology
|October 14, 2024
概括
减拉聚合物 (DRPs) 在毒症小鼠模型中改善了血液流动和氧气输送. 药物缓解了微血管功能障碍和组织缺氧,为治疗败血症及其并发症提供了一种新的方法.
科学领域:
- 生物医学工程 生物医学工程
- 生理学 生理学 生理学
- 药理学 药理学是指药理学的学科.
背景情况:
- 败血症,败血性休克和多器官功能障碍综合征是导致医院死亡的主要原因.
- 微血管功能障碍,炎症和凝血病是败血症的特征.
- 目前的败血症治疗需要新的方法来防止严重的后果.
研究的目的:
- 调查阻抗聚合物 (DRPs) 在缓解败血症相关的微血管失调方面的有效性.
- 为了确定DRP增强输液是否可以减轻小鼠的脂聚糖 (LPS) 诱导性败血症的影响.
主要方法:
- 在C57BL/6 J小鼠中使用静脉注射LPS (10 mg/kg) 诱导了急性败血症.
- 在LPS后1小时内静脉注射DRPs (5ppm) 或盐水,以评估出血学调节.
- 在体内使用两光子激光扫描显微镜监测大脑和外周的微循环和组织氧化超过4小时.
主要成果:
- 由LPS诱导的败血症导致大脑和外围组织中显著的微血管功能障碍和组织缺氧.
- 与盐水对照组相比,DPR治疗显著缓解了微血栓形成 (p <0.05).
- 药物有效地减少了大脑和外围组织中的微血管功能障碍和组织缺氧 (p <0.05).
结论:
- 使用DRP进行血液调节,在败血症模型中改善了全身和外周血液循环.
- 药物可减少微血栓,微血管功能障碍和组织缺氧,可能减轻败血症及其相关综合征.
- 抗血栓治疗是一种有前途的治疗策略,用于治疗败血症,败血栓休克和多器官功能障碍综合征.
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