The Effects of Glucagon on Hepatic Metabolism in People With Type 2 Diabetes After Caloric Restriction
Adrian Vella
20 participants
Dec 15, 2022
INTERVENTIONAL
Conditions
Summary
Caloric restriction (and RYGB) improves insulin action and lowers fasting glucose, glucagon and EGP, without changes in postprandial EGP and glucagon concentrations. Caloric restriction also improves hepatic steatosis and lowers fasting AA. These changes may represent restoration of glucagon's hepatic actions. This experiment will determine whether caloric restriction improves glucagon's actions on hepatic amino acid, carbohydrate and lipid metabolism in T2DM in comparison to a baseline experiment performed separately in people with T2DM.
Eligibility
Inclusion Criteria3
- We will recruit up to 20 weight-stable, subjects with type 2 diabetes
- BMI ≥ 28 Kg/M2
- Diabetes is managed by diet alone or a combination of oral agents
Exclusion Criteria7
- History of prior upper abdominal surgery e.g. gastric banding, pyloroplasty, vagotomy.
- Active systemic illness or malignancy.
- Symptomatic macrovascular or microvascular disease.
- Contraindications to MRI (e.g. metal implants, claustrophobia).
- Hematocrit \< 35%
- TSH \< 0.4 or \> 5.5.
- Consumption of \> 2 alcohol drinks per day or \> 14 per week or a positive AUDIT questionnaire.
Interventions
Subjects will be instructed to consume a diet of 900 kcal daily using meals derived from "Nutritional Guidelines after Bariatric Surgery". Compliance will be monitored by weekly meetings with the dietician using an electronic record of food intake
Hyperglycemic clamp to measure the effect of glucagon on hepatic metabolism
Locations(1)
View Full Details on ClinicalTrials.gov
For the most up-to-date information, visit the official listing.
NCT05499702