John Jeffrey Carr
Professor of Radiology, Biomedical Informatics and Cardiovascular Medicine
Last active: 9/11/2017

Association of circulating sclerostin with vascular calcification in Afro-Caribbean men.

Kuipers AL, Miljkovic I, Carr JJ, Terry JG, Nestlerode CS, Ge Y, Bunker CH, Patrick AL, Zmuda JM
Atherosclerosis. 2015 239 (1): 218-23

PMID: 25618029 · PMCID: PMC4331206 · DOI:10.1016/j.atherosclerosis.2015.01.010

OBJECTIVE - Sclerostin, a Wingless (Wnt) pathway antagonist, is an established regulator of bone mineralization in humans but its potential importance in the regulation of vascular calcification is less clear. Therefore, our objective was to assess the relationship of serum sclerostin levels with coronary and aortic artery calcification (CAC and AAC, respectively) in Afro-Caribbean men on the island of Tobago.

METHODS - Serum sclerostin levels and computed tomography of CAC and AAC were measured in 191 men (age mean(SD): 62.9(8.0)years) recruited without regard to health status. Multivariable logistic regression models were used to assess the cross-sectional association of sclerostin with prevalent arterial calcification.

RESULTS - Mean(SD) sclerostin was 45.2 pmol/L (15.6 pmol/L). After adjusting for risk factors including age, physical and lifestyle characteristics, comorbidities, lipoproteins and kidney function, 1 SD greater sclerostin level was associated with a 1.61-times (95%CI 1.02-2.53) greater odds of having CAC. Sclerostin was not associated with AAC in any model.

CONCLUSIONS - This is the first study to show that, among Afro-Caribbean men, greater serum sclerostin concentrations were associated with prevalence and extent of CAC. Further studies are needed to better define the role of the Wnt signaling pathway in arterial calcification in humans.

Copyright © 2015 Elsevier Ireland Ltd. All rights reserved.

MeSH Terms (17)

African Continental Ancestry Group Aged Aorta Blood Glucose Bone Morphogenetic Proteins Caribbean Region Genetic Markers Humans Male Middle Aged Multivariate Analysis Risk Factors Tomography, X-Ray Computed Trinidad and Tobago Vascular Calcification Vascular Diseases Wnt Signaling Pathway

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