Copper and zinc concentrations in atherosclerotic plaque and serum in relation to lipid metabolism in patients with carotid atherosclerosis

Background/Aim. Some oligoelements are now investigated as possibly having a role in atherosclerosis. The aim of this study was to compare the concentrations of copper and zinc in the serum and carotid plaque and parameters of lipid metabolism in patients with different morphology of car...

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Main Authors: Tasić Nebojša M., Tasić Danijela, Otašević Petar, Veselinović Mirjana, Jakovljević Vladimir, Đurić Dragan, Radak Đorđe
Format: Article
Language:English
Published: Ministry of Defence of the Republic of Serbia, University of Defence, Belgrade 2015-01-01
Series:Vojnosanitetski Pregled
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Online Access:http://www.doiserbia.nb.rs/img/doi/0042-8450/2015/0042-84501400074T.pdf
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author Tasić Nebojša M.
Tasić Danijela
Otašević Petar
Veselinović Mirjana
Jakovljević Vladimir
Đurić Dragan
Radak Đorđe
author_facet Tasić Nebojša M.
Tasić Danijela
Otašević Petar
Veselinović Mirjana
Jakovljević Vladimir
Đurić Dragan
Radak Đorđe
author_sort Tasić Nebojša M.
collection DOAJ
description Background/Aim. Some oligoelements are now investigated as possibly having a role in atherosclerosis. The aim of this study was to compare the concentrations of copper and zinc in the serum and carotid plaque and parameters of lipid metabolism in patients with different morphology of carotid atherosclerotic plaque. Methods. Carotid endarterectomy due to the significant atherosclerotic stenosis was performed in 91 patients (mean age 64 ± 7). The control group consisted of 27 patients (mean age 58 ± 9), without carotid atherosclerosis. Atheroscletoric plaques were divided into four morphological groups, according to ultrasonic and intraoperative characteristics. Copper and zinc concentrations in the plaque, carotid artery and serum were measured by atomic absorption spectrophotometry. Results. Serum copper concentrations were statistically significantly higher in the patients with hemorrhagic in comparison to those with calcified plaque (1.2 ± 0.9 μmol/L vs 0.7 ± 0.2 μmol/L, respectively; p = 0.021). Zinc concentrations were statistically significantly lower in plaques of the patients with fibrolipid in comparison to those with calcified plaques (22.1 ± 16.3 μg/g vs 38.4 ± 25.8 μg/g, respectively; p = 0.024). A negative significant correlation was found for zinc and triglycerides in the serum in all the patients (r = -0.52, p = 0.025). In the control group we also demonstrated a positive significant correlation for low-density lipoprotein cholesterol and copper in the serum (r = 0.54, p = 0.04). Conclusion. The data obtained in the current study are consistent with the hypothesis that high copper and lower zinc levels may contribute to atherosclerosis and its sequelae as factors in a multifactorial disease. Further studies are necessary in order to conclude whether high concentration of copper and zinc in the serum could be risk factors for atherosclesrosis.
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spelling doaj-art-4b37261d720643549720c23e6aa331ef2025-08-20T02:17:48ZengMinistry of Defence of the Republic of Serbia, University of Defence, BelgradeVojnosanitetski Pregled0042-84502406-07202015-01-0172980180610.2298/VSP140417074T0042-84501400074TCopper and zinc concentrations in atherosclerotic plaque and serum in relation to lipid metabolism in patients with carotid atherosclerosisTasić Nebojša M.0Tasić Danijela1Otašević Petar2Veselinović Mirjana3Jakovljević Vladimir4Đurić Dragan5Radak Đorđe6Faculty of Medicine, Dedinje Cardiovascular Institute, BelgradeFaculty of Medicine, Dedinje Cardiovascular Institute, BelgradeFaculty of Medicine, Dedinje Cardiovascular Institute, BelgradeClinical Centre Kragujevac, Internal Medicine Clinic, Department of Rheumatology, KragujevacFaculty of Medicine, Department of Physiology, KragujevacFaculty of Medicine, Institute of Physiology “Richard Burian”, BelgradeFaculty of Medicine, Dedinje Cardiovascular Institute, BelgradeBackground/Aim. Some oligoelements are now investigated as possibly having a role in atherosclerosis. The aim of this study was to compare the concentrations of copper and zinc in the serum and carotid plaque and parameters of lipid metabolism in patients with different morphology of carotid atherosclerotic plaque. Methods. Carotid endarterectomy due to the significant atherosclerotic stenosis was performed in 91 patients (mean age 64 ± 7). The control group consisted of 27 patients (mean age 58 ± 9), without carotid atherosclerosis. Atheroscletoric plaques were divided into four morphological groups, according to ultrasonic and intraoperative characteristics. Copper and zinc concentrations in the plaque, carotid artery and serum were measured by atomic absorption spectrophotometry. Results. Serum copper concentrations were statistically significantly higher in the patients with hemorrhagic in comparison to those with calcified plaque (1.2 ± 0.9 μmol/L vs 0.7 ± 0.2 μmol/L, respectively; p = 0.021). Zinc concentrations were statistically significantly lower in plaques of the patients with fibrolipid in comparison to those with calcified plaques (22.1 ± 16.3 μg/g vs 38.4 ± 25.8 μg/g, respectively; p = 0.024). A negative significant correlation was found for zinc and triglycerides in the serum in all the patients (r = -0.52, p = 0.025). In the control group we also demonstrated a positive significant correlation for low-density lipoprotein cholesterol and copper in the serum (r = 0.54, p = 0.04). Conclusion. The data obtained in the current study are consistent with the hypothesis that high copper and lower zinc levels may contribute to atherosclerosis and its sequelae as factors in a multifactorial disease. Further studies are necessary in order to conclude whether high concentration of copper and zinc in the serum could be risk factors for atherosclesrosis.http://www.doiserbia.nb.rs/img/doi/0042-8450/2015/0042-84501400074T.pdfzinccopperrisk factorsarteriosclerosiscarotid stenosislipids
spellingShingle Tasić Nebojša M.
Tasić Danijela
Otašević Petar
Veselinović Mirjana
Jakovljević Vladimir
Đurić Dragan
Radak Đorđe
Copper and zinc concentrations in atherosclerotic plaque and serum in relation to lipid metabolism in patients with carotid atherosclerosis
Vojnosanitetski Pregled
zinc
copper
risk factors
arteriosclerosis
carotid stenosis
lipids
title Copper and zinc concentrations in atherosclerotic plaque and serum in relation to lipid metabolism in patients with carotid atherosclerosis
title_full Copper and zinc concentrations in atherosclerotic plaque and serum in relation to lipid metabolism in patients with carotid atherosclerosis
title_fullStr Copper and zinc concentrations in atherosclerotic plaque and serum in relation to lipid metabolism in patients with carotid atherosclerosis
title_full_unstemmed Copper and zinc concentrations in atherosclerotic plaque and serum in relation to lipid metabolism in patients with carotid atherosclerosis
title_short Copper and zinc concentrations in atherosclerotic plaque and serum in relation to lipid metabolism in patients with carotid atherosclerosis
title_sort copper and zinc concentrations in atherosclerotic plaque and serum in relation to lipid metabolism in patients with carotid atherosclerosis
topic zinc
copper
risk factors
arteriosclerosis
carotid stenosis
lipids
url http://www.doiserbia.nb.rs/img/doi/0042-8450/2015/0042-84501400074T.pdf
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