Journal
CLINICA CHIMICA ACTA
Volume 414, Issue -, Pages 161-165Publisher
ELSEVIER
DOI: 10.1016/j.cca.2012.08.029
Keywords
Bilirubin; Intima media thickness; Transaminases; Type 2 diabetes mellitus
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Funding
- Dutch Diabetes Research Foundation [2001.00.012]
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Background: Higher serum bilirubin levels may be implicated cardiovascular protection. It is unknown whether the impact of serum bilirubin on carotid artery intima media thickness (IMT), a marker of subclinical atherosclerosis, is different in diabetic subjects compared to non-diabetic subjects. We assessed relationships of IMT with serum total bilirubin in non-diabetic and Type 2 diabetic subjects without clinically manifest cardiovascular disease. Methods: IMT, total bilirubin, transaminases, C-reactive protein (CRP) and lipid levels were measured in 40 predominantly middle-aged non-diabetic and 80 diabetic subjects. Results: IMT was higher in diabetic subjects compared to non-diabetic subjects (unadjusted, p<0.001), whereas bilirubin was not different (p = 0.82). In both non-diabetic and in diabetic subjects, IMT was negatively related to bilirubin (beta = -0.316, p = 0.045 and beta = -0.247 p = 0.014, respectively) taking account of age, sex and mean arterial pressure. In the combined subjects, IMT remained independently related to bilirubin (beta = -0.183, p = 0.028) after additional adjustment for diabetes status, alcohol intake, transaminases, CRP and lipid levels. There was no interaction of bilirubin with the presence of diabetes on IMT (p = 0.98). Conclusion: Carotid artery IMT relates negatively to bilirubin in non-diabetic and Type 2 diabetic subjects. The association of subclinical atherosclerosis with bilirubin appears to be unaltered in the diabetic state. (C) 2012 Elsevier B.V. All rights reserved.
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