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[Vascular dysfunction in obstructive sleep apnoea: Implication of microparticules]
W Trzepizur1, P Priou1, N Meslier1
1Département de pneumologie, CHU d'Angers, 4, rue Larrey, 49100 Angers, France; Inserm UMR 1063, stress oxydant et pathologies métaboliques (SOPAM), université d'Angers, université Bretagne-Loire, 49100 Angers, France.
Abstract:
Obstructive sleep apnea (OSA) is associated with increased cardiovascular diseases, including myocardial infarction and stroke and promotes cardiovascular risk factors including diabetes and hypertension. OSA has also been proposed to have a direct proatherogenic effects. Recent studies have investigated the role of microparticles (MPs) in the atherogenic process. MPs are small plasma membrane vesicles that can be released by a variety of vascular or blood cells and that contain membrane and cytosolic elements. Case-control studies have suggested that OSA is associated with an increase in circulating platelet-, endothelial- and leukocyte-derived MPs. MPs from OSA patients injected to mice have also been shown to induce vascular inflammation and endothelial dysfunction. In this article, we provide an overview of the main characteristics of MPs expressed in OSA and their potential role in the atherogenic process.
Insights
Obstructive sleep apnea (OSA) increases cardiovascular risks. This study reviews how microparticles (MPs) released during OSA may drive atherosclerosis and vascular dysfunction.
Area of Science:
- Cardiovascular Science
- Sleep Medicine
- Cell Biology
Background:
- Obstructive sleep apnea (OSA) is linked to cardiovascular diseases like heart attack and stroke.
- OSA exacerbates risk factors such as diabetes and hypertension.
- Microparticles (MPs), released from blood cells, are implicated in atherosclerosis.
Purpose of the Study:
- To review the characteristics of MPs in OSA.
- To explore the role of MPs in the atherogenic process associated with OSA.
Main Methods:
- Review of case-control studies on MPs in OSA patients.
- Analysis of research on the effects of OSA-derived MPs in animal models.
Main Results:
- OSA is associated with elevated levels of platelet-, endothelial-, and leukocyte-derived MPs.
- MPs from OSA patients can induce vascular inflammation and endothelial dysfunction in mice.
Conclusions:
- MPs are a significant factor in the atherogenic process in OSA.
- Understanding MP characteristics in OSA is crucial for cardiovascular risk management.
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