在缺血性中风大鼠中,凯姆菲洛尔通过HIF-1α/VEGF-A/Notch1通路促进血管新生
Sen Zhang1, Chengdi Liu2, Wan Li1
1The State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing, 100050, China; Beijing Key Laboratory of Innovative Drug Discovery and Polymorphic Druggability Research for Cerebrovascular Diseases, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050, China.
Neurochemistry international
|February 23, 2025
概括
凯姆菲罗尔通过增强血管形成 (血管生成) 和修复大脑组织,促进缺血性中风的恢复. 这种天然化合物激活HIF-1α/VEGF-A/Notch1通路,为中风患者提供治疗潜力.
科学领域:
- 神经科学是一个神经科学.
- 药理学 药理学是指药理学的学科.
- 生物医学工程 生物医学工程
背景情况:
- 脑卒中是导致神经障碍的主要原因,需要促进功能恢复的治疗.
- 加强血管新生是改善缺血性中风后结果的关键策略.
- 在缺血性中风中,kaempferol的益血管效应需要进一步研究.
研究的目的:
- 研究kaempferol对缺血性中风的长期治疗作用.
- 为了阐明在中风中凯姆菲罗尔诱导的血管生成的潜在机制.
- 评估kaempferol作为治疗缺血性中风的治疗剂的潜力.
主要方法:
- 建立了体内 (大鼠中风模型) 和体内 (氧气-葡萄糖剥夺诱导的人类大脑微血管内皮细胞) 模型.
- 服用卡姆菲罗尔并评估神经缺陷,心脏病发作量和微血管密度.
- 分析了HIF-1α/VEGF-A/Notch1信号通路的激活及其在kaempferol作用中的作用.
主要成果:
- 在中风大鼠中,凯姆菲洛尔治疗显著改善了神经功能,并减少了心脏病发作量.
- 凯姆菲罗尔增强了内皮细胞的存活,增殖,迁移和光的形成,促进了新血管化.
- 凯姆菲洛激活了HIF-1α/VEGF-A/Notch1通路,这对其益血管性和神经保护作用至关重要.
结论:
- 在缺血性中风模型中,kaempferol显示出显著的神经保护作用.
- 凯姆菲罗尔可以刺激内源性血管生成和新血管结构重塑.
- HIF-1α/VEGF-A/Notch1通路调解了凯姆菲罗尔的治疗益处,突出了其在中风治疗中的潜力.
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