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Gastrointestinal hormone profile in renal insufficiency
Mayo Clinic Proceedings
|December 1, 1979
Summary
Patients with kidney failure have elevated levels of key gastrointestinal hormones, including gastrin and cholecystokinin. These hormone levels correlate with the severity of renal insufficiency, potentially impacting digestive function.
Area of Science:
- Endocrinology
- Nephrology
- Gastroenterology
Background:
- Renal insufficiency is associated with altered metabolic processes.
- Gastrointestinal hormone regulation may be affected by kidney function.
Purpose of the Study:
- To investigate fasting serum concentrations of gastrin, cholecystokinin (CCK), glucagon, and gastric inhibitory polypeptide (GIP) in patients with varying degrees of renal failure.
- To determine the correlation between renal insufficiency severity and these hormone levels.
Main Methods:
- Simultaneous measurement of fasting serum gastrin, CCK, glucagon, and GIP.
- Comparison of hormone levels between normal subjects and patients with renal failure (serum creatinine > 3 mg/dl).
- Assessment of hormone levels before and after hemodialysis.
Main Results:
- Significantly higher serum concentrations of gastrin, CCK, GIP, and glucagon were observed in patients with renal failure compared to controls.
- A significant correlation was found between the degree of renal insufficiency and serum concentrations of each measured hormone.
- Hemodialysis did not significantly alter serum gastrin, CCK, or glucagon, but reduced GIP by 30%.
Conclusions:
- Patients with renal insufficiency exhibit elevated fasting serum levels of multiple gastrointestinal hormones.
- The degree of kidney dysfunction correlates with increased concentrations of these hormones.
- Disproportionate increases in hormones with opposing functions may disrupt gastrointestinal function in renal insufficiency.