Keywords: Biology, Models, Methods, Metabolism, Diabetes, Deuterium, Ex‐Vivo Applications, Hyperpolarized MR (Non‐Gas), Pancreas, Preclinical
Motivation: The role of the exocrine pancreas in Type 1 Diabetes (T1D) pathophysiology is dramatically understudied.
Goal(s): Our goal was to measure pyruvate metabolism and de novo lipogenesis (DNL) to determine if the exocrine pancreas displays metabolic adaptations in the context of T1D.
Approach: : We utilized hyperpolarized [1-13C]pyruvate and JHSQC experiments as well as 2H spectroscopy after 2H2O administration in a mouse model of T1D to interrogate these metabolic pathways.
Results: Pyruvate carboxylation was increased in the T1D exocrine pancreas with active pyruvate cycling. DNL was decreased in the liver with no significant changes in the pancreas.
Impact: The consequences of pyruvate cycling and increased pyruvate carboxylation in the T1D exocrine pancreas can now be investigated, and may be a target for therapeutic intervention, whereas rates of DNL were unchanged in the T1D pancreas.
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