Diabetes Mellitus, Type 2, Insulin Sensitivity/Resistance
Conditions
Keywords
Capillary recruitment
Brief summary
This study examines the effects of iloprost - a stable prostacyclin analogue - on insulin-mediated muscle capillary recruitment and whole-body glucose uptake in a cross-over design.
Detailed description
In type 2 diabetes impaired insulin-mediated muscle perfusion is thought to contribute to reduced whole-body glucose uptake. This study aims to identify iloprost - a stable prostacyclin analogue - as a possible therapeutic option to increase whole-body glucose uptake via enhancement of muscle perfusion. All participants will be subjected to two hyperinsulinemic-euglycemic clamps; one with and one without simultaneous iloprost infusion in a randomized cross-over design. Microvascular blood volume will be measured by means of contrast-enhanced ultrasonography.
Interventions
Iloprost is a stable prostacyclin analogue
Sponsors
Study design
Eligibility
Inclusion criteria
* Type 2 diabetes * Male or female (post-menopausal) * Age above 45 years and below 70 years * BMI \>30 kg/m2 * HbA1c \< 80 mmol/mol or \< 8,6% Subjects must use metformin * Stable medication use * Stable tension regulation (with or without medication) * Subjects should be able to give informed consent
Exclusion criteria
* A history of cardiovascular event (Cerebrovascular event, myocardial infarction or pacemaker implantation) * Severe-very severe lung emphysema (GOLD stage III-IV) * Use of any antibiotics or proton pump inhibitor (PPI) in the past three months * Use of any other antidiabetic medication besides metformin (e.g. SU-derivates, insulin) * Use of a platelet inhibitor or cumarin derivate during * Subjects participated in a lifestyle programme in the past 6 months (diet or exercise)
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Rate of disappearance | During the clamp | Glucose uptake in peripheral tissues during hyperinsulinemic euglycemic clamp |
| Capillary recruitment | Before and during the clamp | Change in skeletal muscle en myocardial microvascular blood volume upon insulin infusion |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Continous cardiovascular monitoring | Before and during the clamp | Diastolic blood pressure |
Countries
Netherlands