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ATP Release and Sympathetic Nerve Activity in Patients With Type II Diabetes

NCT02001766 · Status: UNKNOWN · Phase: PHASE1/PHASE2 · Type: INTERVENTIONAL · Enrollment: 45

Last updated 2015-06-16

No results posted yet for this study

Summary

Type II diabetes (T2D) is characterized by endothelial dysfunction, resulting in a poor tissue perfusion and function as well as an increased risk of cardiovascular events. ATP, which is released from the red blood cells, contributes to the regulation of the blood flow and studies have shown that red blood cells taken from T2D patients have an impaired ability to release ATP. However, it is not known whether the changes in the ATP system is an underlying cause of the poor tissue perfusion observed in T2D. The purpose of project 1 is to test the hypothesis that the deterioration in blood flow in T2D is caused by a reduced release ATP from red blood cells, and to test if pharmacological manipulation of cAMP will normalize ATP release, plasma ATP levels and thereby blood flow.

Furthermore, epidemiological studies show a clear link between regular exercise and a reduced risk of serious cardiovascular disease. The extent to which a physically active lifestyle may improve endothelial function in T2D is unknown. Regular physical activity improves vascularization and induces an anti-inflammatory environment. Both the angiogenic and anti-inflammatory effects of physical activity is in part mediated by substances released from the active muscle. These muscle-derived substances are classified as myokines and have paracrine, autocrine and endocrine effects and may thereby affect distant tissues. The purpose of the project 2 is to investigate whether high intensity interval training may reverse endothelial dysfunction in T2D through increased release of ATP and myokines. In individuals with T2D we will determined blood flow in the muscle tissue using advanced ultrasound. In addition, using intravascular and intramuscular microdialysis we will determine ATP levels in blood and in the muscle interstitium.

Conditions

Interventions

BEHAVIORAL

Exercise training

Sponsors & Collaborators

  • Anders Rasmussen Rinnov

    lead OTHER

Principal Investigators

  • Stefan P. Mortensen, Dr. Med. · Centre of Inflammation and Metabolism

Study Design

Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
SINGLE
Model
PARALLEL

Eligibility

Min Age
40 Years
Max Age
65 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2013-02-28
Primary Completion
2016-08-31
Completion
2016-08-31

Countries

  • Denmark

Study Locations

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Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT02001766 on ClinicalTrials.gov