相关实验视频
Updated: May 30, 2025

07:54
Use of a Hanging-weight System for Isolated Renal Artery Occlusion
Published on: July 19, 2011
15.9K
模拟的微重力通过促进内动脉重塑,使脏易受损伤
Qiang Lyu1, Delong Zhao1, Jiaqi Liu1
1Department of Nephrology, State Key Laboratory of Kidney Diseases, Beijing Key Laboratory of Kidney Disease Research, National Clinical Research Center for Kidney Diseases, Nephrology Institute of the Chinese People's Liberation Army, Chinese PLA General Hospital, Beijing, China.
概括
模拟微重力通过改变血液动力学来影响损伤的恢复. 这项研究确定动脉重塑是微重力诱导功能障碍的一个关键因素.
科学领域:
- 太空医学 太空医学
- 脏生理学 脏生理学
- 微重力研究 微重力研究
背景情况:
- 太空飞行对宇航员健康构成风险,包括多器官功能障碍.
- 微重力对功能及其机制的具体影响仍然在很大程度上是未知的.
研究的目的:
- 调查模拟微重力对功能和损伤易感性的影响.
- 阐明微重力诱导的脏变化的潜在机制.
主要方法:
- 后肢减重 (HU) 模型模拟微重力.
- 组织学分析,缺血-再输液实验,性超声波,生物信息学和分子分析.
- 评估血清肌素,尿素,损伤得分和血液动力学.
主要成果:
- 后肢减重没有显著改变基线功能标志物或损伤得分.
- 暴露于HU的动物表现出缺血-再输液损伤后恢复能力受损.
- 增加的抗性指数表明由于模拟微重力而导致血液动力学的改变.
结论:
- 模拟的微重力使脏易患缺血-再输液损伤.
- 由Rho-酶通路激活和受损的NO-eNOS血管扩张驱动的动力学变化,有助于增加损伤的敏感性.
- 在微重力下脏动脉重塑提供了针对脏功能障碍的干预的潜在目标.
相关概念视频
Kidney Structure
68.7K
The kidneys are two large bean-shaped organs located in the upper abdomen. They filter the blood several times a day to remove toxins and rebalance water and electrolytes of the circulatory system via the renal veins. The kidneys receive blood directly from the heart via the renal arteries. These arteries enter the kidney at the hilum, the concave surface of the bean, where they branch and divide into smaller vessels and capillaries.
68.7K
External Anatomy of the Kidney
713
The kidneys are a pair of bean-shaped organs in the human body that play a critical role in maintaining overall health. They filter out waste products from the blood, regulate blood pressure, maintain electrolyte balance, and stimulate the production of red blood cells.
The kidneys are located in the retroperitoneal space on either side of the vertebral column, protected posteriorly by the 11th and 12th ribs. The right kidney sits slightly lower than the left owing to the presence of the liver...
The kidneys are located in the retroperitoneal space on either side of the vertebral column, protected posteriorly by the 11th and 12th ribs. The right kidney sits slightly lower than the left owing to the presence of the liver...
713
Renal Corpuscle
1.6K
The glomerulus and Bowman's capsule are two essential components of the nephron, which is the functional unit of the kidney. These microscopic structures play a critical role in the process of blood filtration to produce urine.
Glomerulus: Structure and Function
The glomerulus is a tiny, intricate network of capillaries located at the beginning of the nephron. It's enveloped by the Bowman's capsule and receives its blood supply from an afferent arteriole, which divides into numerous...
Glomerulus: Structure and Function
The glomerulus is a tiny, intricate network of capillaries located at the beginning of the nephron. It's enveloped by the Bowman's capsule and receives its blood supply from an afferent arteriole, which divides into numerous...
1.6K

