Exp Clin Endocrinol Diabetes 2017; 125(06): 400-407
DOI: 10.1055/s-0042-124421
Article
© Georg Thieme Verlag KG Stuttgart · New York

Effect of Saxagliptin on Circulating Endothelial Progenitor Cells and Endothelial Function in Newly Diagnosed Type 2 Diabetic Patients

Fang Li
1   Department of Endocrinology and Metabolism, Zhongshan Hospital, Fudan University, No.180 Fenglin Road, Shanghai, China
,
Jiachao Chen
1   Department of Endocrinology and Metabolism, Zhongshan Hospital, Fudan University, No.180 Fenglin Road, Shanghai, China
,
Fei Leng
1   Department of Endocrinology and Metabolism, Zhongshan Hospital, Fudan University, No.180 Fenglin Road, Shanghai, China
,
Zhiqiang Lu
1   Department of Endocrinology and Metabolism, Zhongshan Hospital, Fudan University, No.180 Fenglin Road, Shanghai, China
,
Yan Ling
1   Department of Endocrinology and Metabolism, Zhongshan Hospital, Fudan University, No.180 Fenglin Road, Shanghai, China
› Author Affiliations
Further Information

Publication History

received 09 October 2016
revised 20 December 2016

accepted 21 December 2016

Publication Date:
13 April 2017 (online)

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Abstract

Background

Endothelial dysfunction is associated with the risk of cardiovascular complications in diabetic patients. Endothelial progenitor cells (EPCs) and flow-mediated dilation (FMD) are common markers of endothelial function. In this study, we aim to investigate whether the DPP-4 inhibitor saxagliptin modulate EPCs number and FMD in newly diagnosed, treatment-naive type 2 diabetic patients.

Methods

This was a controlled, randomized, open-label clinical trial. Saxagliptin group and metformin group consumed either saxagliptin 5 mg per day or metformin 1 500 mg per day respectively for 12 weeks. Changes of FMD and EPCs number after 12-week intervention were the primary endpoints.

Results

31 patients were initially enrolled and randomized to saxagliptin group (n=16) and metformin group (n=15). 27 patients completed the trial (saxagliptin group n=14 and metformin group n=13), and 4 patients dropped out during the study. FMD and EPCs number increased significantly in both saxagliptin group and metformin group, and there was no significant difference between groups. 2-h postprandial plasma glucose, HbA1c and diastolic blood pressure improved significantly in both groups, and there was no significant difference between groups.

Conclusion

Saxagliptin and metformin had comparable beneficial effects on endothelial function.