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Title: Correlation of E-selectin concentrations with carotid intima-media thickness and cardio-metabolic profile of mixed ancestry South Africans: a cross-sectional study
Authors: Zemlin, Annalise E 
Matsha, Tandi Edith 
Kengne, Andre Pascal 
Keywords: E-selectin;Endothelial dysfunction;CIMT;Hyperglycaemia;Atherosclerosis
Issue Date: 2016
Publisher: Sage
Abstract: Background: E-selectin, an adhesion molecule, is a specific marker of endothelial dysfunction. High concentrations have been reported in type 2 diabetes and disorders with high risk of cardiovascular disease (CVD). Measurement of carotid intima-media thickness (CIMT) is a surrogate marker of early atherosclerosis. We examined the relationship between E-selectin concentrations, CIMT and cardio-metabolic traits in normo- and hyperglycaemic mixed ancestry South Africans. Methods: E-selectin concentrations were determined in 308 subjects from the Cape Town Bellville South Community– based study on a mixed ancestry population. Their correlation with CIMT and cardio-metabolic profile used robust correlations and linear regression models. Results: E-selectin concentrations were significantly higher in the hyperglycaemic (median 139.8 mg/L) compared to the normoglycaemic group (median 118.8 mg/L), (p ¼ 0.0007). Significant differences between the two groups were found for markers of glycaemia and adiposity, but not for CIMT. Significant correlations were found between E-selectin and age, markers of glycaemia and inflammation, central obesity and lipid variables. Associations remained significant only with age, hyperglycaemia and C-reactive protein in robust linear regression models. In similar regressions models, age and gender were the main predictors of CIMT, which was not associated with E-selectin. Conclusions: E-selectin concentrations in this study were associated with hyperglycaemia, possibly reflecting early endothelial damage. However, E-selectin was not useful to assess CIMT, a marker of subclinical atherosclerosis, which appeared to be determined by ageing and male gender.
Appears in Collections:HWSci - Journal Articles (DHET subsidised)

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