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Published in: BMC Endocrine Disorders 1/2010

Open Access 01-12-2010 | Research article

Comparison of endothelial progenitor cell function in type 2 diabetes with good and poor glycemic control

Authors: Worachat Churdchomjan, Pakpoom Kheolamai, Sirikul Manochantr, Pirath Tapanadechopone, Chairat Tantrawatpan, Yaowalak U-pratya, Surapol Issaragrisil

Published in: BMC Endocrine Disorders | Issue 1/2010

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Abstract

Background

Endothelial progenitor cells (EPCs) play an important role in vascular repair and a decrease in the number of EPCs is observed in type 2 diabetes. However, there is no report on the change of EPCs after glycemic control. This study therefore aimed to investigate the EPC number and function in patients with good and poor glycemic control.

Methods

The number of EPCs was studied using flow cytometry by co-expression of CD34 and VEGFR2. The EPCs were cultured and characterized by the expression of UEA-I, CD34, VEGFR2, vWF and Dil-Ac-LDL engulfment, as well as the ability to form capillary-like structures. An in vitro study on the effect of hyperglycemia on the proliferation and viability of the cultured EPCs was also performed.

Results

The number of EPCs in type 2 diabetes was significantly decreased compared with healthy controls and there was an inverse correlation between the EPC numbers and plasma glucose, as well as HbA1C. The number and function of EPCs in patients with good glycemic control were recovered compared with those with poor glycemic control. When glucose was supplemented in the culture in vitro, there was a negative effect on the proliferation and viability of EPCs, in a dose-dependent manner, whereas the enhancement of apoptosis was observed.

Conclusion

There was EPC dysfunction in type 2 diabetes which might be improved by strict glycemic control. However, the circulating EPC number and proliferative function in patients with good glycemic control did not reach the level in healthy controls.
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Metadata
Title
Comparison of endothelial progenitor cell function in type 2 diabetes with good and poor glycemic control
Authors
Worachat Churdchomjan
Pakpoom Kheolamai
Sirikul Manochantr
Pirath Tapanadechopone
Chairat Tantrawatpan
Yaowalak U-pratya
Surapol Issaragrisil
Publication date
01-12-2010
Publisher
BioMed Central
Published in
BMC Endocrine Disorders / Issue 1/2010
Electronic ISSN: 1472-6823
DOI
https://doi.org/10.1186/1472-6823-10-5

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