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Published in: Angiogenesis 3/2016

01-07-2016 | Original Paper

Circulating angiopoietin-2 levels in children and adolescents with type 1 diabetes mellitus: relation to carotid and aortic intima-media thickness

Authors: Mohamed Abo El-Asrar, Nancy Samir Elbarbary, Eman Abdel Rahman Ismail, AlShaimaa Abo Bakr

Published in: Angiogenesis | Issue 3/2016

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Abstract

Background

Angiopoietin-2 is a growth factor involved in the pathophysiology of vascular and inflammatory diseases such as arteriosclerosis. Carotid or aortic scans provide noninvasive screening tools for assessment of preclinical atherosclerosis in high-risk children.

Aim

We assessed serum angiopoietin-2 in children and adolescents with type 1 diabetes mellitus as a potential marker for vascular complications in relation to glycemic control, inflammation and vascular structure.

Methods

Sixty patients with type 1 diabetes were divided into 2 groups according to the presence of micro-vascular complications and compared with 30 healthy controls. High-sensitivity C-reactive protein (hs-CRP), hemoglobin A1c (HbA1c), urinary albumin/creatinine ratio, serum angiopoietin-2, carotid and aortic intima-media thickness (CIMT and AIMT) were measured.

Results

CIMT, AIMT and serum angiopoietin-2 levels were significantly increased in patients with and without micro-vascular complications compared with controls, and the highest levels were in patients with complications (p < 0.001). Angiopoietin-2 was higher in patients with microalbuminuria than normoalbuminuric group (p < 0.001). Fasting blood glucose, HbA1c, hs-CRP, CIMT and AIMT were independently related to angiopoietin-2 in multiple regression analysis. Disease duration, hyperglycemia, poor glycemic control, hypercholesterolemia, inflammation and angiopoietin-2 were independent factors contributing to atherosclerosis risk.

Conclusion

The relation between angiopoietin-2 and assessed parameters of vascular structure in type 1 diabetes reflects a state of endothelial injury and highlights the role of disturbed angiogenesis and vascular inflammation in the occurrence of diabetic complications.
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Metadata
Title
Circulating angiopoietin-2 levels in children and adolescents with type 1 diabetes mellitus: relation to carotid and aortic intima-media thickness
Authors
Mohamed Abo El-Asrar
Nancy Samir Elbarbary
Eman Abdel Rahman Ismail
AlShaimaa Abo Bakr
Publication date
01-07-2016
Publisher
Springer Netherlands
Published in
Angiogenesis / Issue 3/2016
Print ISSN: 0969-6970
Electronic ISSN: 1573-7209
DOI
https://doi.org/10.1007/s10456-016-9517-6

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