<qa>  What is the effect of treatment with a glucagon-like peptide 1The investigators find that especially diastolic dysfunction is of interest, because it is highly overrepresented in DM2 patients and no treatment exists. Glucagon-like peptide 1 analogue could be a possible treatment agent, by increasing the energy level in the myocardium. No previous study has tested the effect of treatment with a glucagon-like peptide 1 analogue on diastolic dysfunction. 