Document Detail


Osteoprotegerin and biomarkers of vascular inflammation in type 2 diabetes.
MedLine Citation:
PMID:  20809534     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: Osteoprotegerin (OPG), receptor activator for nuclear factor kappa beta ligand (RANKL) and tumour necrosis factor-related apoptosis-inducing ligand (TRAIL) are newly discovered members of the tumour necrosis factor-alpha receptor superfamily. While their role in bone metabolism is well described, their function within the vasculature is poorly understood. OPG inhibits vascular calcification in vitro and high serum levels have been demonstrated in type 2 diabetes, but serum RANKL and TRAIL and their potential correlation with well-established biomarkers of subclinical vascular inflammation such as high-sensitivity C-reactive protein (hsCRP) and interleukin-6 (IL-6) have not been described.
METHODS: Sixty-two patients with well-controlled type 2 diabetes and an age, gender and body mass index-matched group of 58 healthy individuals were recruited. Serum OPG, RANKL and TRAIL were measured using commercial enzyme-linked immunosorbent assays, as were hsCRP and IL-6.
RESULTS: Serum OPG, IL-6 and hsCRP levels, but not RANKL or TRAIL, were higher in patients with type 2 diabetes mellitus than in healthy controls, after adjustment for age and gender. After exclusion of diabetes patients with a history of micro- or macrovascular disease, OPG remained significantly higher in those with diabetes, but IL-6 and hsCRP levels were no longer elevated. There was a positive correlation between OPG and IL-6 in the group as a whole, but no correlation was found between RANKL or TRAIL and either hsCRP or IL-6.
CONCLUSION: OPG, but not RANKL or TRAIL, is significantly increased in type 2 diabetes. Higher OPG (but not IL-6 or hsCRP) in those without vascular disease suggests these biomarkers reflect separate pathophysiological processes in the vasculature.
Authors:
Eoin P O'Sullivan; David T Ashley; Colin Davenport; Niamh Devlin; Rachel Crowley; Amar Agha; Christopher J Thompson; Donal O'Gorman; Diarmuid Smith
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Diabetes/metabolism research and reviews     Volume:  26     ISSN:  1520-7560     ISO Abbreviation:  Diabetes Metab. Res. Rev.     Publication Date:  2010 Sep 
Date Detail:
Created Date:  2010-09-02     Completed Date:  2010-12-30     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100883450     Medline TA:  Diabetes Metab Res Rev     Country:  England    
Other Details:
Languages:  eng     Pagination:  496-502     Citation Subset:  IM    
Copyright Information:
2010 John Wiley & Sons, Ltd.
Affiliation:
Department of Diabetes, Royal College of Surgeons in Ireland Medical School, Beaumont Hospital, Dublin, Ireland.
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MeSH Terms
Descriptor/Qualifier:
Biological Markers / blood*
C-Reactive Protein / metabolism
Diabetes Mellitus, Type 2 / blood*,  complications
Diabetic Angiopathies / blood
Female
Humans
Inflammation / blood*
Interleukin-6 / blood
Male
Middle Aged
Osteoprotegerin / metabolism*
RANK Ligand / blood
TNF-Related Apoptosis-Inducing Ligand / blood
Chemical
Reg. No./Substance:
0/Biological Markers; 0/Interleukin-6; 0/Osteoprotegerin; 0/RANK Ligand; 0/TNF-Related Apoptosis-Inducing Ligand; 0/TNFSF10 protein, human; 9007-41-4/C-Reactive Protein

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