相关实验视频
Updated: Jan 8, 2026

05:51
A Human Ex Vivo Atherosclerotic Plaque Model to Study Lesion Biology
Published on: May 6, 2014
13.7K
在人类动脉样硬化斑块内检测和BTEX的抗炎作用
Raffaele Marfella1,2, Francesca Carreras3, Francesco Prattichizzo3
1Department of Advanced Medical and Surgical Sciences, University of Campania "Luigi Vanvitelli", Piazza Luigi Miraglia, 2, Naples 80138, Italy.
Environmental science & technology
|December 11, 2025
概括
,,,和乙 (BTEX) 污染物积聚在人类动脉样硬化斑块中,促进局部炎症并增加心血管疾病的风险. 这项研究揭示了将环境毒素与动脉样硬化进展联系起来的潜在机制.
科学领域:
- 环境健康 环境健康
- 心血管研究研究心血管研究
- 毒理学 毒理学 毒理学
背景情况:
- 血液中,,,和乙 (BTEX) 的含量与心血管疾病发病率的增加有关.
- 通过BTEX促进心血管疾病的确切机制在很大程度上是未知的.
- 这项研究调查了BTEX在动脉样硬化斑块中积累,引发局部炎症反应的假设.
研究的目的:
- 为了确定BTEX污染物是否会在人动脉动脉样硬化斑块中积聚.
- 调查斑块中BTEX存在与局部/全身炎症标志物之间的关联.
- 探索BTEX及其代谢物1,4-二对人类单细胞的体外炎症作用.
主要方法:
- 追溯分析了147个关节内关节切除术斑块样本.
- 使用气体染色学和高性能液体染色学量化BTEX和1,4-基.
- 在BTEX阳性和BTEX阴性组之间的炎症标志物 (CD68,MMP9,NLRP3,IL-1β,TNF-α) 的比较.
- 用BTEX和1,4-基进行人体单细胞的体外治疗,以评估促炎作用和泡细胞形成.
主要成果:
- 在147个分析的斑块中,有93个 (63%) 检测到BTEX污染物.
- 阳性BTEX斑块的炎症标志物 (CD68,MMP9,NLRP3,IL-1β,TNF-α) 和系统性炎症指标 (WBC,NLR) 的水平显著提高.
- 在实验室中,,烯和乙诱导了单细胞中的炎症反应和泡细胞形成,这种效应被1,4-基模仿.
结论:
- 这项研究提供了BTEX污染物在人动脉动脉样硬化斑块中积累的第一个证据.
- 斑块中BTEX的积累与局部和全身炎症的增加有关,可能会激活益风原性通路.
- 这些发现表明,一种新的机制将环境BTEX暴露与动脉样硬化的发展和进展联系在一起.
相关概念视频
Atherosclerosis I: Introduction
795
Atherosclerosis is a progressive disorder characterized by the buildup of plaques on the arterial inner wall, causing them to narrow and harden over time. These plaques comprise lipids, calcium, blood components, carbohydrates, and fibrous tissue. The process primarily affects the intima of large and medium-sized arteries, reducing blood flow in any artery.Etiology and risk factorsThe cause of atherosclerosis is multifactorial, involving a complex interplay among endothelial injury, lipid...
795
Inflammation
61.4K
Overview
61.4K
Atherosclerosis II: Clinical Manifestations and Diagnostic Tests
434
Atherosclerosis is a progressive disorder that leads to the thickening and narrowing of arterial walls due to plaque buildup. This condition can cause various symptoms depending on the arteries affected:Coronary Artery Disease (CAD): This condition affects the coronary arteries and may lead to chest pain (angina), shortness of breath (dyspnea), heart attacks, and other heart disease symptoms.Cerebrovascular Disease: This affects blood flow to the brain, causing transient ischemic attacks (TIAs)...
434
Coronary Artery Disease II: Pathophysiology
340
Coronary Artery Disease (CAD) originates from a series of events that impair the function of coronary arteries, the blood vessels responsible for delivering oxygen-rich blood to the heart muscle. The pathophysiology of CAD is closely linked to atherosclerosis, a chronic inflammatory and lipid-driven condition affecting the vascular endothelium.1. Endothelial DamageThe process begins with damage to the vascular endothelium, which serves as a protective barrier between the blood and the vessel...
340

