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The objective of the study is to investigate how exogenously administered glucagon affects hepatic lipid, glucose and protein metabolism as well as appetite, food intake and resting energy expenditure.
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Most research has focused on the role of the pancreatic hormone, insulin, and insulin signalling (or lack of) in the development of NAFLD. However, increasing evidence suggest that the other major gluco-regulatory pancreatic hormone glucagon is also implicated in lipid metabolism and recent human data from studies investigating the effect of glucagon receptor antagonism suggest that glucagon signalling may be essential for maintaining a fat-free liver. This, combined with observations of increased degree of hepatic steatosis in patients after total pancreatectomy, who are devoid of pancreatic glucagon and typically are lean and peripherally insulin sensitive, suggests that glucagon may play a hitherto unrecognised role in the pathophysiology of NAFLD.
The hypothesis of the study is that exogenously delivered glucagon will drive hepatic metabolism in a lipolytic direction and increase resting energy expenditure without affecting appetite and food intake.
The acute effects of exogeneous glucagon infusion on hepatic lipid metabolism will be evaluated in patients after total pancreatectomy (no endogenous pancreatic hormones), in patients with type 1 diabetes (no endogenous insulin production) and in healthy controls (preserved endogenous pancreatic hormones).
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Pancreatectomised patients
Patients with type 1 diabetes
Healthy controls
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All subjects
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Interventional model
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27 participants in 2 patient groups, including a placebo group
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Data sourced from clinicaltrials.gov
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