Glucagonoma pathophysiology
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Parminder Dhingra, M.D. [2]
Overview
Pathophysiology
- A glucagonoma is a rare tumor of the alpha cells of the pancreas that results in the overproduction of the hormone glucagon. Alpha cell tumors are commonly associated with glucagonoma syndrome, though similar symptoms are present in cases of pseudoglucagonoma syndrome in the absence of a glucagon-secreting tumor.[1]
- The primary physiological effect of glucagonoma is an overproduction of the peptide hormone glucagon, which enhances blood glucose levels through the activation of catabolic processes including gluconeogenesis and lipolysis. Gluconeogenesis produces glucose from protein and amino acid materials; lipolysis is the breakdown of fat.
- Diabetes mellitus also frequently results from the insulin and glucagon imbalance that occurs in glucagonoma.[2]
References
- ↑ Glucagonoma. Wikipedia. https://en.wikipedia.org/wiki/Glucagonoma. Accessed on October 13, 2015.
- ↑ Koike N, Hatori T, Imaizumi T; et al. (2003). "Malignant glucagonoma of the pancreas diagnoses through anemia and diabetes mellitus". Journal of hepato-biliary-pancreatic surgery. 10 (1): 101–5. PMID 12918465.