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Predictors of vascular remodelling in hypertensive subjects with well-controlled blood pressure levels

Journal of Human Hypertension volume 29, pages 561–565 (2015)Cite this article

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Abstract

We evaluated the structural/functional characteristics of the arterial wall in a cohort of hypertensives with well-controlled blood pressure (BP) levels. We studied 40 hypertensives with well-controlled BP. We assessed by B-mode ultrasound the mean intima-media thickness (mean-IMT) and maximum-IMT (M-MAX) of carotid artery (common, bulb, internal) bilaterally. Endothelial function was evaluated by post-occlusion flow-mediated dilation (FMD) of the brachial artery. Along with traditional risk factors, we studied the impact of serum high-sensitivity C-reactive protein (hs-CRP) and osteoprotegerin (OPG). Forty normotensive subjects served as controls. In the hypertensives, the BP levels were well controlled (office BP: 129/79 mm Hg, ambulatory BP monitoring: 121/75 mm Hg). Compared with controls, higher BP levels and body mass index were present in hypertensives, whereas age and metabolic parameters were similar. In hypertensives, the IMT (mean-IMT 0.68 mm, M-MAX 0.81 mm) was significantly higher than in controls (mean-IMT 0.60 mm, M-MAX 0.71 mm). FMD was impaired in hypertensives (5.9%) compared with controls (9.2%). In multivariate analyses, it turned out that in hypertensives IMT parameters were related to age, hs-CRP and OPG. Low-density lipoprotein (LDL) cholesterol was the only factor related to FMD. IMT and FMD had no relationship with BP levels. In conclusion, in hypertensives with well-controlled BP, the pro-atherogenic remodelling (IMT) is mainly dependent on age and the inflammatory cytokines, OPG in particular. The functional impairment of the arterial wall (FMD) was related to the levels of LDL cholesterol. Under these conditions, when the impact of BP is minimized, the role of inflammatory cytokines and lipids on structural/functional remodelling becomes predominant.

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Acknowledgements

We acknowledge the Biomedical Foundation for Cardiovascular Research and Gene Therapy of Padova, Italy, (a no-profit Institution) for providing financial support to this study.

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Authors and Affiliations

  1. Department of Medicine, DMED, University of Padova, Padova, Italy

    M Puato, M Rattazzi, M Zanon, E Benetti, E Faggin, P Palatini & P Pauletto

  2. Medicina I, Ospedale Ca’ Foncello, Treviso, Italy

    M Rattazzi & P Pauletto

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  1. M Puato
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Correspondence to P Pauletto.

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Puato, M., Rattazzi, M., Zanon, M. et al. Predictors of vascular remodelling in hypertensive subjects with well-controlled blood pressure levels. J Hum Hypertens 29, 561–565 (2015). https://doi.org/10.1038/jhh.2014.121

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