相关实验视频

Updated: Jan 10, 2026

Microfluidic Platform for Measuring Neutrophil Chemotaxis from Unprocessed Whole Blood

Microfluidic Platform for Measuring Neutrophil Chemotaxis from Unprocessed Whole Blood

Published on: June 3, 2014

中性粒细胞的循环控制驱动并发输液和中风结果

Sandra Vázquez-Reyes^1,2, Alicia García-Culebras^1,2,3, Gaohong Di^2,4

¹Cardiovascular Risk Factors and Brain Function Programme, Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain. (S.V.-R., A.G.-C., F.J.D.C.-M., C.N.-V., A.R.-S., E.M.-C., C.P.-P., A.R.-P., A.A.-C., I.B., M.I.C., M.A.M.).

Circulation research

|November 26, 2025

概括

当中风在不活动期间发生时,中风的结果会恶化,这是由于中性粒细胞驱动的NETosis阻碍了血液流动. 向中性粒细胞外细胞陷 (NETs) 或定时治疗可以改善中风恢复.

科学领域:

神经科学是一个神经科学.
免疫学免疫学免疫学
循环节生物学日间生物

背景情况:

脑卒中是导致死亡和残疾的主要原因.
附带输液显著影响中风的严重程度和结果.
昼夜节律在中风病理生理学中的作用,特别是中性粒细胞的功能,尚不清楚.

研究的目的:

为了研究中性粒细胞在中风中的日间时间依赖机制.
确定昼夜调节如何影响中性粒细胞功能,NET形成和中风严重程度.
分析中风患者中NET相关生物标志物的日间模式及其与附带循环和结果的关联.

主要方法:

使用中脑动脉封闭 (MCAO) 的小鼠模型.
采用流细胞计,单细胞RNA测序,共聚焦显微镜和激光光斑成像.
研究了针对中性粒细胞和昼夜节律的药理学和遗传干预措施,并分析了患者数据.

主要成果:

脑卒中结果表现出昼夜振荡,在小鼠非活动阶段的结果更差.
中性粒细胞在不活跃阶段表现出一个被激活的,易患NET的表型,减少了附带输液.
患者数据显示NET相关生物标志物的日间振荡,与减少的附带流和较差的结果相关.

结论:

中性粒细胞功能的日间调节对于附带输液和中风严重程度至关重要.
在不活跃阶段由中性粒细胞驱动的NETosis通过引起微血管阻塞,加剧了中风的结果.
针对NET形成或实施慢性治疗可能为中风治疗提供新的策略.

关键词:

生物标志物生物标志物昼夜节律昼夜节律中性粒细胞中性粒细胞.perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion 这是一个非常重要的方法,它可以让一个人成为一个非常重要的角色,一个非常重要的角色,一个非常重要的角色,一个非常重要的角色,一个非常重要的角色,一个非常重要的角色,一个非常重要的角色,一个非常重要的角色一次性中风中风中风中风中风

更多相关视频

Stereological and Flow Cytometry Characterization of Leukocyte Subpopulations in Models of Transient or Permanent Cerebral Ischemia

Stereological and Flow Cytometry Characterization of Leukocyte Subpopulations in Models of Transient or Permanent Cerebral Ischemia

Published on: December 28, 2014

Optimized System for Cerebral Perfusion Monitoring in the Rat Stroke Model of Intraluminal Middle Cerebral Artery Occlusion

Optimized System for Cerebral Perfusion Monitoring in the Rat Stroke Model of Intraluminal Middle Cerebral Artery Occlusion

Published on: February 17, 2013

相关概念视频

Chronopharmacokinetics: Circadian Rhythms and Influence on Drug Response

Chronopharmacokinetics: Circadian Rhythms and Influence on Drug Response

Circadian rhythms are cyclic changes that are crucial in plasma drug concentrations. Various standard circadian parameters, including core body temperature, heart rate, and other cardiovascular factors, directly impact disease states and the therapeutic response to drug therapy.
The time of drug administration is an important factor to consider, as it can influence the toxic dose of a drug. For example, a study conducted by Prins et al. in 1997 examined the effects of the timing of...

Autoregulation of Blood Flow

Autoregulation of Blood Flow

Autoregulation mechanisms are characterized by their inherent capacity for self-regulation without necessitating specific nervous stimulation or endocrine control. These mechanisms facilitate the adjustment of blood flow and, therefore, perfusion specific to each tissue region. This self-regulation encompasses chemical signals and myogenic controls.
Chemical Signaling in Autoregulation
Chemical signaling operates at the precapillary sphincter level, inciting either contraction or relaxation....

Inflammation

Inflammation

Regulation of Stroke Volume

Regulation of Stroke Volume

The regulation of stroke volume, which is the amount of blood the heart pumps out during each heartbeat, is critical for maintaining a healthy circulatory system. Stroke volume is influenced by three main factors: preload, contractility, and afterload.
Preload refers to the degree of stretch on the heart before it contracts. It's analogous to the stretching of a rubber band; the more it's stretched, the more forcefully it snaps back. This concept is encapsulated in the Frank-Starling law of the...