Association of endothelial progenitor cells and peptic ulcer treatment in patients with type 2 diabetes mellitus

Nie,Zhihong; Xu,Limin; Li,Chuanyuan; Tian,Tao; Xie,Pingping; Chen,Xia; Li,Bojing

doi:10.3892/etm.2016.3114

Association of endothelial progenitor cells and peptic ulcer treatment in patients with type 2 diabetes mellitus

Authors:
- Zhihong Nie
- Limin Xu
- Chuanyuan Li
- Tao Tian
- Pingping Xie
- Xia Chen
- Bojing Li
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Affiliations: Department of Gastroenterology, Gongli Hospital, The Second Military Medicine University, Shanghai 200135, P.R. China, Department of Laboratory Medicine, Gongli Hospital, The Second Military Medicine University, Shanghai 200135, P.R. China
Published online on: February 26, 2016 https://doi.org/10.3892/etm.2016.3114
Pages: 1581-1586
Copyright: © Nie et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

The present study aimed to investigate the association between endothelial progenitor cells (EPCs) and peptic ulcers in patients with or without type 2 diabetes mellitus (T2DM), in association with the efficiency of peptic ulcer treatment. The study recruited healthy subjects and peptic ulcer patients with or without T2DM. All the ulcer patients, including those with and without T2DM, were administered omeprazole for 8 weeks. Peptic ulcer patients with T2DM were additionally treated with glipizide and novolin. Blood samples were then obtained from the three groups following ulcer treatment. CD133+ cells were isolated from the blood samples using magnetic bead selection, and cultured in complete medium 199. Morphological and quantity changes in EPCs were observed by light and fluorescence microscopy. In addition, flow cytometric analysis was used to quantify the number of vascular endothelial cells. The treatment was partially effective in 7 of the 32 peptic ulcer patients without T2DM and 12 of the 32 peptic ulcer patients with T2DM. However, this treatment was ineffective in 20 of the 32 peptic ulcer patients with T2DM. Notably, 25 peptic ulcer patients without T2DM were defined as completely recovered following treatment. In addition, the number of circulating EPCs as well as their colony forming ability was significantly reduced (P<0.05) in the peptic ulcer patients with T2DM following ulcer treatment, compared with the other groups. Circulating EPC counts were significantly increased in peptic ulcer patients without T2DM, as compared with the healthy controls. With regards to colony formation, peptic ulcer patients without T2DM did not exhibit improved colony formation ability. In conclusion, the number of circulating EPCs and their colony‑forming ability was significantly reduced in peptic ulcer patients with T2DM following ulcer treatment when compared with the other groups. This suggests that the poor curative effect of peptic ulcer treatment in these patients is associated with impairment of EPCs.

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