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Serum isoamylases in chronic pancreatitis
Scandinavian Journal of Gastroenterology
|January 1, 1976
Summary
Serum pancreatic isoamylase levels are significantly lower in patients with chronic pancreatitis, with many lacking this enzyme entirely. This simple test aids in diagnosing exocrine pancreatic insufficiency.
Area of Science:
- Biochemistry
- Gastroenterology
- Clinical Diagnostics
Background:
- Chronic pancreatitis is a condition affecting pancreatic function.
- Isoamylases, specifically pancreatic and salivary isoamylases, are enzymes produced by the pancreas and salivary glands.
- Accurate diagnosis of exocrine pancreatic insufficiency is crucial for effective management.
Purpose of the Study:
- To investigate serum isoamylase levels in patients with chronic pancreatitis.
- To evaluate the diagnostic utility of serum pancreatic isoamylase for exocrine pancreatic insufficiency.
Main Methods:
- Quantification of serum isoamylases (pancreatic and salivary) in 15 patients with chronic pancreatitis.
- Comparison of enzyme activities with healthy controls.
Main Results:
- Mean pancreatic isoamylase activity was markedly reduced (7 U/L) in chronic pancreatitis patients compared to controls (88 U/L).
- Eight patients showed a complete absence of pancreatic isoamylase; the remaining had a mean activity of 15 U/L.
- Salivary isoamylase activities were moderately elevated in the patient group.
Conclusions:
- Serum pancreatic isoamylase determination is a straightforward screening method.
- This assay shows promise for diagnosing exocrine pancreatic insufficiency.