Related Experiment Videos
Among inflammation and coagulation markers, PAI-1 is a true component of the metabolic syndrome
I Mertens1, A Verrijken, J J Michiels
1Department of Diabetology, Metabolism and Clinical Nutrition, Faculty of Medicine, University Hospital Antwerp, University of Antwerp (UA), Antwerp, Belgium.
Insights
Metabolic syndrome is associated with increased leukocyte count and plasminogen activator inhibitor-1 activity (PAI-1). PAI-1 is a strong indicator, while leukocyte count is a moderate indicator of metabolic syndrome.
Area of Science:
- Endocrinology
- Cardiovascular Disease
- Hematology
Background:
- Metabolic syndrome is a cluster of conditions increasing cardiovascular disease risk.
- Inflammatory markers and coagulation factors are implicated in metabolic syndrome pathogenesis.
Purpose of the Study:
- To determine if leukocyte count, fibrinogen, von Willebrand factor (vWF), and plasminogen activator inhibitor-1 activity (PAI-1) are elevated in individuals with metabolic syndrome.
- To assess these markers using both National Cholesterol Education Program-Adult Treatment Panel III (NCEP-ATPIII) and World Health Organization (WHO) criteria.
Main Methods:
- A cross-sectional study of 520 overweight and obese subjects.
- Metabolic syndrome assessed via NCEP-ATPIII and WHO criteria, including waist circumference, blood pressure, glucose, and lipids.
- Leukocyte count, fibrinogen, vWF, and PAI-1 activity measured.
Main Results:
- Subjects with metabolic syndrome showed significantly higher leukocyte count and PAI-1 activity by NCEP-ATPIII criteria.
- Similar findings were observed with WHO criteria, with vWF also elevated.
- Leukocyte count, vWF, and PAI-1 levels differed significantly based on the number of metabolic syndrome components present.
Conclusions:
- Plasminogen activator inhibitor-1 activity (PAI-1) is strongly associated with metabolic syndrome.
- Leukocyte count shows a moderate association, while vWF and fibrinogen have a weaker association with metabolic syndrome.
Objective:
To investigate whether leukocyte count, fibrinogen, von Willebrand factor (vWF) and plasminogen activator inhibitor-1 activity (PAI-1) are increased in subjects with the metabolic syndrome as defined by the National Cholesterol Education Program-Adult Treatment Panel III (NCEP-ATPIII) and the World Health Organisation (WHO).
Design:
Cross-sectional study.
Subjects:
A total of 520 overweight and obese subjects: 379 women and 141 men, visiting the weight management clinic of a University Hospital.
Subjects And Measurements:
Waist circumference, triglycerides, HDL cholesterol, blood pressure and fasting glucose were determined, and the presence or absence of the metabolic syndrome according to the NCEP-ATPIII criteria was assessed. In 349 subjects, data on the waist-to-hip ratio (WHR) and albumin excretion rate were available and the WHO criteria were applied. Insulin resistance was defined using the HOMA-IR index.
Results:
Subjects with the metabolic syndrome according to the NCEP-ATPIII criteria had significantly higher levels of leukocyte count (P < 0.001) and PAI-1 (P < 0.001), while no significant differences were found for fibrinogen or vWF (P > 0.05). Using the WHO criteria, similar results were found except for vWF, where higher levels were found in subjects with the metabolic syndrome. When subjects were classified according to the number of components of the metabolic syndrome, levels of leukocyte count, vWF and PAI-1 activity were significantly different (P < 0.05). In logistic regression analysis PAI-1, gender and leukocyte count were independent determinants of the metabolic syndrome (P < 0.001).
Conclusion:
Evidence for being a true component of the metabolic syndrome is strong for PAI-1, less for leukocyte count and weak for vWF and fibrinogen.
Related Concept Videos
Acute Inflammation III: Local and Systemic Effects
Chronic Inflammation: Introduction
Inflammatory Response I: Vascular and Cellular
Inflammatory Response
Inflammation can be triggered by various stimuli, such as impact, abrasion, chemical irritation, infections, and extreme hot or cold temperatures. These can damage cells and connective tissue fibers,...
Inflammation: Introduction
Nociception