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Selenoprotein-P Deficiency Predicts Cardiovascular Disease and Death

1
Institut für Experimentelle Endokrinologie, Charité—Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, D-13353 Berlin, Germany
2
Department of Clinical Sciences, Malmö, Lund University, SE 214 28 Malmö, Sweden
3
Sphingotec GmbH, Neuendorfstrasse 15A, D-16761 Hennigsdorf, Germany
4
Department of Internal Medicine, Clinical Research Center, Skåne University Hospital, Jan Waldenströms gata 35, Bldg. 91, SE 214 28 Malmö, Sweden
*
Author to whom correspondence should be addressed.
Nutrients 2019, 11(8), 1852; https://doi.org/10.3390/nu11081852
Received: 24 July 2019 / Revised: 5 August 2019 / Accepted: 7 August 2019 / Published: 9 August 2019
(This article belongs to the Special Issue The Role of Selenium in Health and Disease)
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Abstract

Selenoprotein-P (SELENOP) is the main carrier of selenium to target organs and reduces tissue oxidative stress both directly and by delivering selenium to protective selenoproteins. We tested if the plasma concentration of SELENOP predicts cardiovascular morbidity and mortality in the primary preventive setting. SELENOP was measured from the baseline exam in 2002–2006 of the Malmö Preventive Project, a population-based prospective cohort study, using a validated ELISA. Quintiles of SELENOP concentration were related to the risk of all-cause mortality, cardiovascular mortality, and a first cardiovascular event in 4366 subjects during a median (interquartile range) follow-up time of 9.3 (8.3–11) years using Cox proportional Hazards Model adjusting for cardiovascular risk factors. Compared to subjects in the lowest quintile of SELENOP, the risk of all three endpoints was significantly lower in quintiles 2–5. The risk (multivariate adjusted hazard ratio, 95% CI) decreased gradually with the lowest risk in quintile 4 for all-cause mortality (0.57, 0.48–0.69) (p < 0.001), cardiovascular mortality (0.52, 0.37–0.72) (p < 0.001), and first cardiovascular event (0.56, 0.44–0.71) (p < 0.001). The lower risk of a first cardiovascular event in quintiles 2–5 as compared to quintile 1 was significant for both coronary artery disease and stroke. We conclude that the 20% with lowest SELENOP concentrations in a North European population without history of cardiovascular disease have markedly increased risk of cardiovascular morbidity and mortality, and preventive selenium supplementation studies stratified for these subjects are warranted. View Full-Text
Keywords: Selenoprotein-P; selenium; cardiovascular disease; prevention; supplementation Selenoprotein-P; selenium; cardiovascular disease; prevention; supplementation
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Schomburg, L.; Orho-Melander, M.; Struck, J.; Bergmann, A.; Melander, O. Selenoprotein-P Deficiency Predicts Cardiovascular Disease and Death. Nutrients 2019, 11, 1852.

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