Endocan, a novel marker of endothelial dysfunction in patients with essential hypertension: Comparative effects of amlodipine and valsartan

Turgay Celik, Sevket Balta, Murat Karaman, Seyit Ahmet Ay, Sait Demirkol, Cengiz Ozturk, Mustafa Dinc, Hilmi U. Unal, M. Ilker Yilmaz, Selim Kilic, Gulcan Kurt, A. Tas, Atila Iyisoy, Fosca Quarti-Trevano, Francesco Fici, Guido Grassi

Research output: Contribution to journalArticle

Abstract

Vascular inflammation plays an important role in the pathophysiology of hypertension and high levels of endocan may reflect ongoing vascular inflammation in hypertensive patients. In the present hypothesis-generating study, we aimed at investigating the comparative effects of amlodipine and valsartan on endocan levels in newly diagnosed hypertensive patients. The study population consisted of 37 untreated hypertensive patients who were randomized to the two treatment arms. After baseline assessment, each patient was randomly allocated to either 10 mg daily of amlodipine (n = 18, 7 males) or 160 mg daily of valsartan (n = 19, 3 males) and treated for a 3-month period. Sphygmomanometric blood pressure (BP) and serum endocan were measured before and every 2 weeks during drug treatment. There was no statistically significant difference between the two treatment arms as far as baseline socio-demographic and clinical characteristics are concerned. After a 3-month treatment period, systolic and diastolic BP values significantly reduced by antihypertensive treatment (p <0.001). Furthermore, endocan levels were significantly decreased in both treatment arms (p <0.05). However, amlodipine caused a greater percent decrease in circulating endocan levels compared with valsartan at the end of the treatment period. Both drugs reduced high sensitivity C-reactive protein values. However, the statistical significant difference vs baseline was achieved only in the group treated with amlodipine. No correlation was found between endocan plasma levels and BP reduction. The results of this hypothesis-generating study suggest that amlodipine and valsartan decrease endocan levels in newly diagnosed hypertensive patients. The effects, which are more evident with amlodipine, may contribute to the anti-inflammatory effects exerted by the two drugs on the vascular target.

Original languageEnglish
Pages (from-to)55-60
Number of pages6
JournalBlood Pressure
Volume24
Issue number1
DOIs
Publication statusPublished - Feb 1 2015

Keywords

  • Amlodipine
  • Endocan
  • Endothelium
  • Valsartan
  • Vascular inflammation

ASJC Scopus subject areas

  • Internal Medicine
  • Cardiology and Cardiovascular Medicine
  • Medicine(all)

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    Celik, T., Balta, S., Karaman, M., Ay, S. A., Demirkol, S., Ozturk, C., Dinc, M., Unal, H. U., Ilker Yilmaz, M., Kilic, S., Kurt, G., Tas, A., Iyisoy, A., Quarti-Trevano, F., Fici, F., & Grassi, G. (2015). Endocan, a novel marker of endothelial dysfunction in patients with essential hypertension: Comparative effects of amlodipine and valsartan. Blood Pressure, 24(1), 55-60. https://doi.org/10.3109/08037051.2014.972816