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  • Title: Plasma levels of pancreatic secretory trypsin inhibitor in relation to amylase and lipase in patients with acute and chronic renal failure.
    Author: Hörl WH, Wanner C, Schollmeyer P, Ogawa M.
    Journal: Nephron; 1988; 49(1):33-8. PubMed ID: 2454413.
    Abstract:
    Plasma levels of pancreatic secretory trypsin inhibitor (PSTI), lipase and amylase were measured in patients with chronic renal failure (CRF), patients undergoing regular hemodialysis treatment (RDT) or continuous ambulatory peritoneal dialysis (CAPD), patients with acute renal failure (ARF) and patients following successful cadaveric kidney transplantation. Plasma PSTI values were 9.2 +/- 0.8 ng/ml in controls (CO), 156.9 +/- 16.2 ng/ml in CRF patients, 257.6 +/- 22.3 ng/ml in RDT patients, 376.8 +/- 57.5 ng/ml in CAPD patients and 2,300 +/- 276.9 ng/ml in patients with posttraumatic ARF. RDT patients with malignant diseases displayed significantly higher PSTI values (1,014 +/- 148.7 ng/ml; p less than 0.01) than RDT patients without malignancy. Transplant patients with normal kidney function (creatinine 1.25 +/- 0.1 mg/dl) showed significantly lower PSTI values (16.7 +/- 2.1 ng/ml) than transplant patients with impaired renal function (creatinine 4.7 +/- 0.5 mg/dl; PSTI 72.8 +/- 11.8 ng/ml; p less than 0.01). Daily urinary excretion of PSTI increased from 26.7 +/- 3.1 micrograms (CO) to 551.8 +/- 54.8 micrograms in CRF patients. In CAPD patients, daily peritoneal loss of PSTI was 164.3 +/- 58.4 micrograms. Plasma PSTI values increased during hemodialysis with dialyzers made of cuprophan (317.0 +/- 32.6 vs. 422.0 +/- 46.2 ng/ml; p less than 0.05) and decreased with polysulfone dialyzers (226.6 +/- 19.9 vs. 86.6 +/- 18.1 ng/ml). There was no correlation between PSTI and urea, creatinine, lipase or amylase in each tested group. Our results document markedly elevated plasma PSTI values in all forms of renal insufficiency, suggesting extrapancreatic PSTI production and/or reduced renal elimination.
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