About this trial
The goal of this clinical trial is to investigate the sensitivity to glucagon in patients with type 2 diabetes mellitus (T2DM), with and without metabolic associated fatty liver disease (MASLD).
The main questions it aims to answer are:
1. Is the sensitivity to glucagon with respect to hepatic FA oxidation and suppression of VLDL-TG secretion impaired in humans with T2DM and MASLD? 2. Is glucagon resistance and MASLD reflected in an aberrated lipidomic/metabolomic profile in blood and adipose tissue?
Researchers will compare patients with T2DM with and without MASLD to see if the response to basal and high levels of glucagon differs between the groups.
Participants will attend 2 short visits and 1 full-day visit, including:
* Body scan (DXA) to check fat and bone composition * MRI to measure liver fat. * Blood tests. * Ultrasound to check liver stiffness and scarring. * Fat biopsies * 8-hour hormone (including glucagon) and tracer infusion * PET-CT scans
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
BMI > 26 kg/m²
confirmed diagnosis of Type 2 Diabetes Mellitus (T2DM) min. 6 months prior enrollment
steatosis FF% > 5,6% on MR spectroscopy for MAFLD group
Disqualifiers
Alcohol abuse (>10 units per week for both sexes) or other substance abuse
Smoking
Current or previous malignant disease
Blood donation within the last 3 months prior to the study day
Trial design
Parallel
Treatments tested in this trial
Glugagon
Other interventionInfusion of low dose glucagon and high dose glucagon during simultaneous somatostatin infusion and replacement doses of insulin and growth hormone. Infusion of palmitate, VLDL-triglyceride and glucose tracers. \[11C\]palmitate PET during low and high dose glucagon.
Treatment groups
Trial outcomes
Primary outcomes
Hepatic FFA oxidation rate (µmol/100Ml/min)
Measured using \[11C\]palmitate positron-emission tomography (PET)
Blood and adipose tissue proteomic and lipidomic profiles
Mass spectrometry-based lipidomic/proteomic profiles of paired adipose and plasma samples.
Secondary outcomes
Endogen glucose production (mmol/kg/min)
3-3H glucose tracer technique
Fatty acid turnover (µmol/min)
Infusion af \[9,10-3H\] palmitate and measurement of specific activity
VLDL-triglyceride kinetics (appearance rate (µmol/min) and oxidation (µmol/min))
Ex vivo labeled VLDL \[14C\]-triolein tracer technique. Oxidation is measured by specific activity in exhaled air.
Sponsors and contacts
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University of Aarhus
Lead sponsor
Novo Nordisk A/S
Collaborator