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Published in: Diabetologia 7/2009

Open Access 01-07-2009 | Article

Associations between autoantibodies against apolipoprotein B-100 peptides and vascular complications in patients with type 2 diabetes

Authors: G. N. Fredrikson, D. V. Anand, D. Hopkins, R. Corder, R. Alm, E. Bengtsson, P. K. Shah, A. Lahiri, J. Nilsson

Published in: Diabetologia | Issue 7/2009

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Abstract

Aims/hypothesis

Oxidation of LDL in the arterial extracellular matrix is a key event in the development of atherosclerosis and autoantibodies against oxidised LDL antigens reflect disease severity and the risk of developing acute cardiovascular events. Since type 2 diabetes is associated with increased oxidative stress, we tested the hypothesis that autoantibodies against oxidised LDL antigens are biomarkers for vascular complications in diabetes.

Methods

We studied 497 patients with type 2 diabetes without clinical signs of coronary heart disease. Oxidised LDL autoantibodies were determined by ELISA detecting IgG and IgM specific for native and malondialdehyde (MDA)-modified apolipoprotein B-100 peptides p45 and p210. The severity of coronary disease was assessed as the coronary artery calcium score.

Results

Patients affected by retinopathy had significantly higher levels of IgG against MDA-p45 and MDA-p210. In contrast, high levels of autoantibodies against the corresponding native peptides were associated with less coronary calcification and a lower risk of progression of coronary disease.

Conclusions/interpretation

Our observations suggest that LDL oxidation is involved in the pathogenesis of diabetic retinopathy and that autoantibodies against apolipoprotein B peptides may act as biomarkers for both micro- and macrovascular complications in diabetes.
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Metadata
Title
Associations between autoantibodies against apolipoprotein B-100 peptides and vascular complications in patients with type 2 diabetes
Authors
G. N. Fredrikson
D. V. Anand
D. Hopkins
R. Corder
R. Alm
E. Bengtsson
P. K. Shah
A. Lahiri
J. Nilsson
Publication date
01-07-2009
Publisher
Springer-Verlag
Published in
Diabetologia / Issue 7/2009
Print ISSN: 0012-186X
Electronic ISSN: 1432-0428
DOI
https://doi.org/10.1007/s00125-009-1377-9

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