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Haemostatic parameters and vascular risk
1Laboratory of Haematology, CHU Timone, Marseilles, France.
Insights
Elevated levels of fibrinogen, Factor VII, and plasminogen activator inhibitor 1 (PAI-1) are linked to cardiovascular disease (CVD). Understanding their genetic and environmental factors is crucial for assessing CVD risk.
Area of Science:
- Cardiovascular Science
- Hemostasis Research
- Epidemiology
Background:
- Epidemiological studies show links between plasma levels of fibrinogen, Factor VII, and plasminogen activator inhibitor 1 (PAI-1) and cardiovascular disease (CVD).
- Higher levels of these hemostatic factors are associated with increased CVD risk and mortality.
- Conventional risk factors for atherothrombosis, such as smoking, cholesterol, and insulin resistance, are linked to hemostatic factor levels.
Purpose of the Study:
- To discuss the primary genetic and environmental determinants of plasma levels for fibrinogen, Factor VII, and PAI-1.
- To relate these determinants to the risk of developing cardiovascular disease (CVD).
Main Methods:
- Review of epidemiological studies and scientific literature.
- Analysis of associations between hemostatic factors and conventional CVD risk factors.
- Discussion of genetic and environmental influences on hemostatic factor levels.
Main Results:
- Increased plasma concentrations of fibrinogen, Factor VII, and PAI-1 are associated with a higher risk of CVD.
- Fibrinogen levels correlate with smoking; Factor VII with cholesterol, triglycerides, and fat intake; PAI-1 and tPA antigen with insulin resistance.
- Genetic and environmental factors significantly influence the plasma levels of these hemostatic factors.
Conclusions:
- Hemostatic factors like fibrinogen, Factor VII, and PAI-1 play a significant role in cardiovascular disease development.
- Understanding the determinants of these factors is essential for CVD risk assessment and management.
- Further research into the interplay of genetic and environmental factors influencing hemostasis is warranted for effective CVD prevention strategies.
Abstract:
Associations between increased plasma concentrations of the three haemostatic factors--fibrinogen, Factor VII and plasminogen activator inhibitor 1 (PAI-1)--and cardiovascular disease (CVD) have recently been demonstrated in epidemiological studies. The relative risk of CVD is increased by 2-3 times in subjects whose levels of fibrinogen fall within the upper third of the general distribution in comparison to those subjects who fall into the lower third; a positive correlation exists between increased Factor VII activity and cardiovascular mortality. Many studies have demonstrated that elevated levels of PAI-1 and tPA antigen are associated with CVD. Several studies have also shown that there are important associations between conventional risk factors for atherothrombosis and haemostatic factors. Fibrinogen levels are strongly linked with smoking, and Factor VII levels are linked with cholesterol, triglycerides and fat intake. PAI-1 and tPA antigen levels, on the other hand, are closely associated with insulin resistance. This paper discusses the principal genetic and environmental determinants of the plasma levels of each of these three haemostatic factors and relates them to the risk of developing CVD.