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High Blood Pressure & Cardiovascular Prevention

, Volume 25, Issue 4, pp 369–378 | Cite as

Microvascular Density and Circulating Endothelial Progenitor Cells Before and After Treatment with Incretin Mimetics in Diabetic Patients

  • Carolina De Ciuceis
  • Claudia Agabiti-Rosei
  • Claudia Rossini
  • Stefano Caletti
  • Maria Antonietta Coschignano
  • Giulia Ferrari-Toninelli
  • Giorgio Ragni
  • Carlo Cappelli
  • Bruno Cerudelli
  • Paolo Airò
  • Mirko Scarsi
  • Angela Tincani
  • Enzo Porteri
  • Damiano Rizzoni
Original Article
  • 60 Downloads

Abstract

Introduction

Glucagon-like peptide 1-receptor agonists (incretin mimetics) and dipeptidyl peptidase-4 inhibitors (incretin enhancers) have been recently introduced in the treatment of diabetes mellitus. In particular, incretin mimetics seems to have ancillary antioxidant/antinflammatory properties that might be involved in endothelial protection.

Aim

To investigate the effect of incretin mimetic therapy (liraglutide, exenatide) given to 11 patients with type 2 diabetes mellitus, on circulating endothelial progenitor cells (EPCs) (bone marrow-derived cells possibly participating in neovascularization and endothelial protection and repair) and capillary density.

Methods

Four diabetic patients were treated with exenatide (5 μg twice daily for 4 weeks and then 10 μg twice daily for 3 weeks) and 7 with liraglutide (0.6 mg per day for 1 week and then 1.2 mg per day for 3 weeks). Peripheral venous blood samples were obtained before treatment (basal) and after 4 week in patients treated with liraglutide, and after 4 and 7 weeks in patients treated with exenatide, since drug titration is usually longer. EPCs were evaluated by flow cytometry as CD34+/KDR+ cells. Capillary density was evaluated by videomicroscopy, before and after venous congestion, in the dorsum of the 4th finger.

Results

Patients treated with liraglutide (6 males 1 female, age 54 ± 12 years) showed a decrease in body mass index and blood pressure during treatment, while patients treated with exenatide (3 males 1 female, age 57 ± 6 years) did not show any relevant change. EPCs were significantly increased after treatment with exenatide, but not after treatment with liraglutide. Capillary density was slightly increased only after 4 weeks of treatment with exenatide, however the increase was no longer present at the final evaluation.

Conclusions

Treatment with exenatide, but not with liraglutide, was able to increase the number of circulating EPCs, possibly through an antioxidative/antiinflammatory effect.

Keywords

Liraglutide Exenatide Incretin mimetics Endothelial progenitor cells Diabetes mellitus Microvascular density Capillaries Capillary density 

Notes

Compliance with Ethical Standards

Conflict of interest

The authors declare that they have no conflict of interest.

Research involving human participants and/or animals

The procedures followed were in accordance with the institutional guidelines.

Informed consent

Informed consent was obtained from all individual participants.

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Copyright information

© Springer Nature Switzerland AG 2018

Authors and Affiliations

  • Carolina De Ciuceis
    • 1
  • Claudia Agabiti-Rosei
    • 1
  • Claudia Rossini
    • 1
  • Stefano Caletti
    • 1
  • Maria Antonietta Coschignano
    • 1
  • Giulia Ferrari-Toninelli
    • 2
  • Giorgio Ragni
    • 3
  • Carlo Cappelli
    • 1
  • Bruno Cerudelli
    • 3
  • Paolo Airò
    • 4
  • Mirko Scarsi
    • 4
  • Angela Tincani
    • 4
  • Enzo Porteri
    • 1
  • Damiano Rizzoni
    • 1
    • 2
  1. 1.Clinica Medica, Department of Clinical and Experimental SciencesUniversity of BresciaBresciaItaly
  2. 2.Division of MedicineIstituto Clinico Città di BresciaBresciaItaly
  3. 3.Division of MedicineSpedali Civili di BresciaGardone Val TrompiaItaly
  4. 4.Department of Clinical and Experimental SciencesUniversity of BresciaBresciaItaly

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