Journal
ARTERIOSCLEROSIS THROMBOSIS AND VASCULAR BIOLOGY
Volume 35, Issue 6, Pages 1544-1550Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1161/ATVBAHA.115.305635
Keywords
diabetes mellitus; epidemiology; glycoprotein; inflammation
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Funding
- American Heart Association from the National Heart, Lung, and Blood Institute [HL43851, HL 080467, CA 47988]
- National Cancer Institute, National Institutes of Health
- Mechanism-Associated Phenotypes for Genetic analyses of Heart, Lung, Blood, and Sleep Diseases [MAPGen for HLBS] [U01 HL108630]
- National Heart, Lung, and Blood Institute [T32 HL007575]
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Objectives-Enzymatically glycosylated proteins partake in multiple biological processes, including glucose transport and inflammation. We hypothesized that a novel biomarker (GlycA) of N-acetyl methyl groups originating mainly from Nacetylglucosamine moieties of acute-phase glycoproteins is related to incident type 2 diabetes mellitus and compared it with high-sensitivity C-reactive protein. Approach and Results-In 26 508 initially healthy women free of diabetes mellitus, baseline GlycA and high-sensitivity C-reactive protein were quantified by nuclear magnetic resonance spectroscopy and immunoturbidimetry, respectively. During median follow-up of 17.2 years, 2087 type 2 diabetes mellitus cases occurred. In Cox models with adjustment for age, race, smoking, alcohol, activity, menopausal status, hormone use, family history, and body mass index, quartile 4 versus 1 hazard ratios and 95% confidence intervals were 2.67 (2.26-3.14) for GlycA and 3.93 (3.24-4.77) for high-sensitivity C-reactive protein; both P trend < 0.0001. Associations for GlycA and high-sensitivity C-reactive protein were attenuated after additionally adjusting for lipids: 1.65 (1.39-1.95) and 2.83 (2.32-3.44), respectively, both P trend < 0.0001, and after mutual adjustment: 1.11 (0.93-1.33; P trend= 0.10) and 2.57 (2.09-3.16; P trend< 0.0001), respectively. Conclusions-Our finding of an association between a consensus glycan sequence common to a host of acute-phase reactants and incident type 2 diabetes mellitus provides further support for inflammation in the development of type 2 diabetes mellitus. Additional studies exploring the role of enzymatic glycosylation in the prevention of type 2 diabetes mellitus are warranted.
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