Abstract
According to previous studies endogenous ouabain (EO) closely correlates with high blood pressure, congestive heart failure and kidney disease in humans. Our aims were to analyse associations between plasma, urinary EO level and various markers of cardiovascular damage in treated hypertensive patients. Forty-one adult patients with hypertension and/or diabetes mellitus (DM) and/or chronic kidney disease (CKD) were studied. We assessed plasma and urinary EO, pro-brain natriuretic peptide and catecholamines, profile of ambulatory blood pressure monitor and cardiovascular status by echocardiography and echo-tracking. The highest level of plasma EO (19.7±9.5 pmol l–1) was measured in hypertensive patients with DM and CKD. The nighttime mean arterial blood pressure independently correlated with the level of plasma EO (P=0.004), while independent predictor of the β-stiffness of carotid artery was the urinary EO (P=0.011). Elevated level of EO was associated with nighttime blood pressure and subclinical organ damage in treated hypertensive patients, suggesting possible role of EO in the pathogenesis of impaired diurnal blood pressure rhythm and arterial stiffness.
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Nagy, G., Gaszner, B., Lányi, É. et al. Selective association of endogenous ouabain with subclinical organ damage in treated hypertensive patients. J Hum Hypertens 25, 122–129 (2011). https://doi.org/10.1038/jhh.2010.24
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DOI: https://doi.org/10.1038/jhh.2010.24
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