Increased arterial stiffness in resistant hypertension is associated with inflammatory biomarkers

Abstract Background. Increased levels of inflammatory biomarkers such as interleukin-6 (IL-6), 10 (IL-10), 1β (IL-1β), tumor necrosis factor-α (TNF-α) high-sensitivity C-reactive protein (hs-CRP) are associated with arterial stiffness in hypertension. Indeed, resistant hypertension (RHTN) leads to u...

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Bibliographic Details
Published in:Blood pressure 2015-02, Vol.24 (1), p.7-13
Main Authors: Barbaro, Natália Ruggeri, Fontana, Vanessa, Modolo, Rodrigo, De Faria, Ana Paula, Sabbatini, Andrea Rodrigues, Fonseca, Francisco Helfenstein, Anhê, Gabriel F., Moreno, Heitor
Format: Article
Language:English
Subjects:
Adult
Aged
Arterial stiffness
Biomarkers - blood
C-Reactive Protein - metabolism
Cytokines - blood
Female
Humans
Hypertension - blood
Hypertension - physiopathology
Hypertension - therapy
Inflammation Mediators - blood
inflammatory cytokines
Male
Middle Aged
pulse wave velocity
resistant hypertension
Vascular Stiffness
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Summary:Abstract Background. Increased levels of inflammatory biomarkers such as interleukin-6 (IL-6), 10 (IL-10), 1β (IL-1β), tumor necrosis factor-α (TNF-α) high-sensitivity C-reactive protein (hs-CRP) are associated with arterial stiffness in hypertension. Indeed, resistant hypertension (RHTN) leads to unfavorable prognosis attributed to poor blood pressure (BP) control and target organ damage. This study evaluated the potential impact of inflammatory biomarkers on arterial stiffness in RHTN. Methods. In this cross-sectional study, 32 RHTN, 20 mild hypertensive (HTN) and 20 normotensive (NT) patients were subjected to office BP and arterial stiffness measurements assessed by pulse wave velocity (PWV). Inflammatory biomarkers were measured in plasma samples. Results. PWV was increased in RHTN compared with HTN and NT (p < 0.05). TNF-α levels were significantly higher in RHTN and HTN than NT patients. No differences in IL-6 levels were observed. RHTN patients had a higher frequency of subjects with increased levels of IL-10 and IL-1β compared with HTN and NT patients. Finally, IL-1β was independently associated with PWV (p < 0.001; R2 = 0.5; β = 0.077). Conclusion. RHTN subjects have higher levels of inflammatory cytokines (TNF-α, IL-1β and IL-10) as well as increased arterial stiffness, and detectable IL-1β levels are associated arterial stiffness. These findings suggest that inflammation plays a possible role in the pathophysiology of RHTN.
ISSN:0803-7051
1651-1999
DOI:10.3109/08037051.2014.940710