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. 1993 Mar;38(3):502-6.
doi: 10.1007/BF01316506.

Simultaneous Determinations of Pancreatic Phospholipase A2 and Prophospholipase A2 in Various Pancreatic Diseases

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Simultaneous Determinations of Pancreatic Phospholipase A2 and Prophospholipase A2 in Various Pancreatic Diseases

A Funakoshi et al. Dig Dis Sci. .

Abstract

Pancreatic phospholipase A2 (PLA2) is secreted into the pancreatic juice by pancreatic acinar cells as a proenzyme (proPLA2), which is activated by trypsin. Radioimmunoassays with monoclonal antibodies to PLA2 and proPLA2 were used to examine the serum PLA2 and proPLA2 levels simultaneously in patients with various pancreatic diseases. In healthy subjects, proPLA2 proved to be the major form of the enzyme. The serum PLA2 level were found to be significantly increased in patients with acute pancreatitis, the active phase of chronic relapsing pancreatitis, and the early stage of pancreatic cancer. In the terminal stage of pancreatic cancer the serum PLA2 level became low. In patients with chronic pancreatitis, significant correlations were observed between the levels of factors evaluated by the secretin test and the serum total PLA2 and proPLA2 level, but not the PLA2 level. The serum PLA2 and proPLA2 concentrations, and the proportion of proPLA2 in the total, were within normal ranges in patients with liver cirrhosis, hepatocellular carcinoma, and chronic renal failure. These results suggest that simultaneous measurements of serum PLA2 and proPLA2 are clinically useful for diagnosis and monitoring of the active phase of pancreatitis.

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