Inflammatory Biomarkers And Obesity In Resistant Hypertension

Objective: To evaluate the relationship between inflammatory biomarkers and obesity in a large cohort of patients with resistant hypertension (RHT). Design and method: This cross-sectional study evaluated 423 subjects with RHT (30.5% male; 63.9 ± 10.8 years old), 215 (50,8%) of whom are obese. In all subjects the inflammatory biomarkers, TNF-alfa, MCP-1, E-Selectin and PAI-1, were dosed. Socio-demographic characteristics, anthropometric measurements and cardiovascular risk factors were recorded. Variance analysis compared the serum levels of 4 biomarkers inflammatory and the bivariate analysis compared resistant hypertensives with and without obesity. Results: Obese subjects are younger, with a higher prevalence of peripheral obstructive arterial disease. No difference was found concerning to the blood pressure, neither to subclinical lesions. The values of PAI-1 (123 [107–164] vs 113 [89–138] and E-Selectin (53.2 [34.2–68.6] vs 44.6 [20.8–62.0] were significantly higher in patients with obesity. The other biomarkers evaluated did not evidence association with obesity. Conclusions: Among the inflammatory biomarkers evaluated, which was most strongly correlated with obesity was PAI-1 and E-Selectin. According to literature PAI-1 is tightly linked to metabolic disorders, such as insulin resistance and central obesity, while E-Selectin has an important role on atherosclerosis's development.