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Hepatic and Cardiac Metabolic Flexibility in Subjects With T2DM With and Without NAFLD

Type 2 Diabetes Clinical Trial

Official title:
Investigation of Hepatic and Cardiac Fatty Acid Metabolism in Patients With Type 2 Diabetes Mellitus With and Without Non-alcoholic Fatty Liver Disease

Clinical Trial Summary

Non-alcoholic fatty liver disease (NAFLD) covers a spectrum from simple reversible hepatic steatosis to inflammation and fibrosis termed steatohepatitis (NASH) and cirrhosis. Accumulating evidence indicates that NAFLD is associated with development of heart failure, abnormal ventricular glucose and fatty acid (FA) utilisation and cardiac steatosis. The mechanisms behind why some subjects progress from NAFLD to NASH and the link between cardiac involvement and NAFLD are poorly understood, but must include altered cardiac and intrahepatic lipid handling. Investigators plan comprehensive kinetic studies of heart and liver FA uptake and oxidation, ventricular function and substrate utilisation, and hepatic triglyceride (TG) secretion in order to assess mechanisms governing cardiac and hepatic lipid and glucose trafficking in subjects with type 2 diabetes with and without NAFLD and NASH and the relationship with heart function. In addition, the investigators will assess skeletal muscle and adipose tissue enzyme activities, gene expression and protein concentrations in type 2 diabetic subjects to define mechanisms involved in the cross-talk between heart, liver, muscle and adipose tissues. Investigators will address these questions using tracer techniques (11Cpalmitate PET tracers and triglyceride (TG) tracers) to study cardiac and liver substrate trafficking, as well as MR spectroscopy, echocardiography, muscle and fat biopsies in combination with state-of-the art muscle and adipose tissue enzyme kinetics, gene- and protein expression. The overarching goals are to define abnormalities and differences between NAFLD and NASH in hepatic lipid (FA and TG) metabolism.

Clinical Trial Description

n/a

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT04698486
Study type Interventional
Source University of Aarhus
Contact
Status Completed
Phase N/A
Start date July 3, 2020
Completion date December 1, 2021
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