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运动训练对年龄引起的大脑微血管稀疏的保护作用:VEGF/Flk-1/PI3K/Akt信号和GLUT1表达
Sheepsumon Viboolvorakul1, Decha Buranajitpirom2, Suthiluk Patumraj3
1Physiology Unit, Department of Medical Science, Faculty of Science, Rangsit University, Pathum Thani, Thailand; sheepsumon.v@rsu.ac.th.
In vivo (Athens, Greece)
|February 27, 2026
概括
运动训练通过增强血液流动和血管密度来对抗与年龄相关的大脑微血管损失. 游泳增加了血管内皮生长因子 (VEGF) 信号传递,促进老年老鼠的大脑健康.
科学领域:
- 神经科学是一个神经科学.
- 老年学是一门学科.
- 心血管科学 心血管科学
背景情况:
- 大脑微血管结构与年龄相关的下降会损害大脑功能.
- 血管新生和血管内皮生长因子 (VEGF) 的减少有助于这种下降.
- 众所周知,运动有益于大脑健康,但衰老的机制尚不清楚.
研究的目的:
- 为了研究运动对老化大脑微血管密度的影响.
- 评估运动对脑组织输液 (CTP) 的影响.
- 探索运动对VEGF介导的血管新生信号传递的影响.
主要方法:
- 雄性大鼠被分为年龄相匹配的对照组,久坐控制组和运动训练 (游泳) 组.
- 大脑组织输液 (CTP) 在体内测量.
- 进行了GLUT1的免疫组织化学和VEGF血管性蛋白质的免疫测试.
主要成果:
- 久坐式衰老减少了微血管密度和CTP.
- 运动训练显著增加了微血管密度和CTP.
- 运动增加了VEGF血管性蛋白和GLUT1,表明内皮功能恢复.
结论:
- 游泳运动可以通过VEGF信号传递来预防与年龄相关的脑微血管损失.
- 运动恢复老化大脑中的结构和代谢内皮功能.
- 增加的GLUT1表明运动后内皮代谢健康状况有所改善.
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