相关实验视频

Updated: May 9, 2025

In Vivo Gene Transfer to the Rabbit Common Carotid Artery Endothelium

In Vivo Gene Transfer to the Rabbit Common Carotid Artery Endothelium

Published on: May 6, 2018

长效抗凝剂杀虫剂对子血细胞外囊的作用

Intakhar Ahmad^1,2, Ruth N Muchiri³, Richard B van Breemen³

¹Department of Anesthesiology, University of Illinois College of Medicine, Chicago, Illinois 60612, United States.

|May 5, 2025

概括

长效抗凝血剂杀剂 (LAARs) 改变细胞外囊泡 (EV) 的度和大小,可能促进有毒物质的运输. 胆固醇胺治疗部分逆转了这些EV变化,这表明它在减轻LAAR毒性方面发挥了作用.

科学领域:

环境毒理学环境毒理学
细胞生物学细胞生物学
生物化学生物化学

背景情况:

细胞外囊泡 (EVs) 对于细胞间通信至关重要,可以将物质穿过生物屏障,包括血脑屏障.
环境中有毒物质可以改变电动汽车的生产和组成,影响它们的生理作用.
长效抗凝血剂杀剂 (LAARs) 由于其持久性和潜在的毒性,构成公共卫生风险.

研究的目的:

为了研究LAARs对子血EV动态的影响.
为了确定胆固醇胺 (CSA) 是否影响LAAR诱导的EVs的变化.
评估LAAR与EV的关联以及EV变化的功能后果.

主要方法:

血EV被从暴露于三种强效LAAR (brodifacoum,difenacoum,bromadiolone) 混合物的子中分离出来,使用聚合物基沉.
纳米粒子跟踪分析 (NTA) 用于量化EV度和尺寸分布.
质谱学确定了与EVs相关的LAAR,并评估了它们对微质细胞的影响.

主要成果:

暴露于LAAR导致了依赖时间的EV度下降,并改变了EV尺寸分布.
同时服用CSA可逆转一些LAAR诱导的EV变化.
所有三个LAAR都在孤立的EV中检测到,CSA降低了它们的水平;LAAR治疗子的EV诱导了微质细胞死亡.

结论:

LAARs显著影响循环电动汽车的度和大小.
电动汽车可以作为传输LAARs到全身的机制,从而增加其毒性.
通过CSA,可以减轻LAAR对电动汽车的影响,并可能减少系统性毒性物质的分布.

更多相关视频

The Rabbit Model of Accelerated Atherosclerosis: A Methodological Perspective of the Iliac Artery Balloon Injury

The Rabbit Model of Accelerated Atherosclerosis: A Methodological Perspective of the Iliac Artery Balloon Injury

Published on: October 3, 2017

Real-Time Monitoring and Modulation of Blood Pressure in a Rabbit Model of Ischemic Stroke

Real-Time Monitoring and Modulation of Blood Pressure in a Rabbit Model of Ischemic Stroke

Published on: February 10, 2023

相关概念视频

Anticoagulant Drugs: Low-Molecular-Weight Heparins

Anticoagulant Drugs: Low-Molecular-Weight Heparins

Hemostasis is a crucial process that prevents excessive blood loss from damaged blood vessels. It involves various mechanisms such as vasoconstriction, platelet adhesion and activation, and fibrin formation. The importance of each mechanism depends on the type of vessel injury. In contrast, thrombosis is the abnormal formation of a blood clot within the blood vessels, leading to potential complications if the clot obstructs blood flow. Thrombosis can be caused by increased coagulability of the...

Anticoagulant Drugs: Vitamin K Antagonists and Direct Oral Anticoagulants

Anticoagulant Drugs: Vitamin K Antagonists and Direct Oral Anticoagulants

Oral anticoagulants are vital tools in preventing and treating blood clotting disorders. This diverse class of medications can be categorized as vitamin K antagonists, exemplified by warfarin, and direct thrombin inhibitors (DTIs), such as dabigatran, as well as factor Xa inhibitors, including rivaroxaban.
Warfarin, a prominent vitamin K antagonist family member, exerts its effect by inhibiting the enzyme VKORC1 (vitamin K epoxide reductase complex 1). By hindering this enzyme, warfarin...