Relevance of endothelial-haemostatic dysfunction in cigarette smoking
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Published on: October 15, 2010
Rossella R Cacciola1, Francesca Guarino, Riccardo Polosa
1Dipartimento di Scienze Biomediche - Sez. Ematologia, Ferrarotto Hospital - University of Catania, Via S. Citelli 6, 95124 Catania, Italy.
Insights
Cigarette smoking damages the endothelium, leading to vascular dysfunction and increasing risks for atherosclerosis and thrombosis. Understanding these mechanisms is crucial for preventing smoking-related cardiovascular diseases.
Area of Science:
- Cardiovascular Science
- Vascular Biology
- Atherothrombosis Research
Background:
- Cigarette smoking is a primary risk factor for atherosclerosis, coronary heart disease, stroke, and peripheral vascular disease.
- The precise pathological mechanisms linking smoking to vascular disease remain unclear despite extensive epidemiological data.
- The endothelium is a key target organ affected by vascular triggers like hypertension, hypercholesterolemia, hyperglycemia, and smoking.
Purpose of the Study:
- To review the evidence on how smoking-induced endothelial dysfunction contributes to atherothrombosis.
- To elucidate the pathological mechanisms underlying the link between smoking and vascular disease.
Main Methods:
- Review of existing epidemiological and experimental studies on smoking and endothelial function.
- Analysis of the impact of smoking on endothelial activation and vascular tone.
- Examination of alterations in hemostatic balance and platelet physiology due to smoking.
Main Results:
- Smoking directly impacts endothelial function, leading to a dysfunctional vascular phenotype.
- Endothelial dysfunction manifests as abnormal vascular tone, proliferation, and prothrombotic activation.
- Smoking alters the hemostatic system and platelet physiology, promoting atherothrombosis.
Conclusions:
- Loss of normal endothelial function due to smoking disrupts hemostatic balance.
- Smoking-induced changes in platelet physiology are significant in the pathogenesis of atherothrombosis.
- Understanding these mechanisms is vital for developing strategies to mitigate smoking-related vascular disease.
Abstract:
Cigarette smoking plays a major role in the development of atherosclerosis and is associated with increased morbidity and mortality for coronary heart disease, stroke and peripheral vascular disease. In spite of the abundance of epidemiological evidence that links cigarette smoking to vascular disease, the pathologic mechanisms for such interaction are not clear. The endothelium is a major target organ that undergoes activation when exposed to common vascular triggers, including hypertension, hypercholesterolemia, hyperglycaemia and smoking. Changes in endothelial function may lead to a dysfunctional vascular phenotype characterized by anomalous responses of the vascular tone, abnormal endothelial proliferation and prothrombotic activation. Several studies have demonstrated that smoking may alter endothelial function by a direct toxic effect and consequently trigger haemostatic activation and thrombosis. In this article we will review the evidence that loss of normal endothelial function may result in a loss of the balance of the haemostatic system and in changes of the platelet physiology that may be relevant for the pathogenic effect of smoking on the development of atherothrombosis.
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