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Effect of copper supplementation on indices of copper status and certain CVD risk markers in young healthy women

Published online by Cambridge University Press:  08 March 2007

Susanne Bügel ,
Angela Harper ,
Edmond Rock ,
Jacqueline M. O'Connor ,
Maxine P. Bonham  and
J. J. Strain
Susanne Bügel*
Affiliation:
Department of Human Nutrition and Centre for Advanced Food Studies, Royal Veterinary and Agricultural University, Rolighedsvej 30, DK-1958, Frederiksberg C, Denmark
Angela Harper
Affiliation:
Department of Human Nutrition and Centre for Advanced Food Studies, Royal Veterinary and Agricultural University, Rolighedsvej 30, DK-1958, Frederiksberg C, Denmark
Edmond Rock
Affiliation:
INRA, Clermont, Ferrand, France
Jacqueline M. O'Connor
Affiliation:
Northern Ireland Centre for Food & Health (NICHE), University of Ulster, Cromore Road, Coleraine BT52 1SA, Northern Ireland, UK
Maxine P. Bonham
Affiliation:
Northern Ireland Centre for Food & Health (NICHE), University of Ulster, Cromore Road, Coleraine BT52 1SA, Northern Ireland, UK
J. J. Strain
Affiliation:
Northern Ireland Centre for Food & Health (NICHE), University of Ulster, Cromore Road, Coleraine BT52 1SA, Northern Ireland, UK
*
*Corresponding author: Dr Susanne Bügel, fax +45 35 28 24 83, email shb@kvl.dk
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Abstract

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Western diets containing suboptimal Cu concentrations could be widespread. A link between marginal Cu deficiency and CVD has been suggested. The objective of the present study was to investigate the effect of Cu supplementation on both Cu status and CVD risk factors in healthy young women. Sixteen women with a mean age of 24 (sd 2) years participated in a randomised crossover study of three 4-week periods with 3-week washouts between periods. During each intervention period, subjects received 0, 3 or 6 mg elemental Cu/d as CuSO4 in addition to their habitual diet. Blood samples were taken to assess the effect of supplementation on putative markers of Cu status. The content of plasma lipids, lipoprotein (a), apo and certain haemostatic factors, as putative indices of CVD, was also analysed. Daily supplementation with 3 mg Cu significantly increased (P<0·05) serum Cu concentration and the activity of erythrocyte superoxide dismutase, although there was no further significant increase after an intake of 6 mg Cu/d. The concentration of the fibrinolytic factor plasminogen activator inhibitor type 1 was significantly reduced (P<0·05) by about 30% after supplementation with 6 mg Cu/d. No other marker of Cu status or CVD risk factor was affected by Cu supplementation. The results indicate that supplementation with 3 or 6 mg Cu/d may improve Cu status in these healthy young women. Increased Cu intake could reduce the risk of CVD and atherosclerosis in man by promoting improved fibrinolytic capacity.

Keywords

Cu statusCu supplementationMarginal Cu deficiencyCVD
Type
Research Article
Information
British Journal of Nutrition , Volume 94 , Issue 2 , August 2005 , pp. 231 - 236
Copyright
Copyright © The Nutrition Society 2005

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