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  • Title: Renal handling of beta-2-microglobulin, amylase and albumin in acute pancreatitis.
    Author: Karlsson FA, Jacobson G.
    Journal: Acta Chir Scand; 1979; 145(1):59-63. PubMed ID: 86264.
    Abstract:
    The renal handling of beta-2-microglobulin, amylase and albumin was studied in patients with acute pancreatitis. The data were compared with results obtained from patients with glomerular proteinuria and from patients with tubular proteinuria. Initially during acute pancreatitis, the clearance ratio (clearance protein/clearance creatinine) for beta-2-microglobulin was increased dramatically (77-fold) compared to normals. After four to seven days this ratio had fallen and was elevated only 7-fold. The corresponding figures for amylase were 3.3 and 1.8 times and for albumin 9 and 5 times respectively. In glomerular disease, the clearance ratios for beta-2-microglobulin, amylase and albumin were increased 6, 1.1, and 154 times and in tubular disease 448, 1.1, and 28 times, respectively. The electrophoretic pattern of the urinary proteins during pancreatitis was mostly normal. In a few cases, slight tubular proteinuria was noticed. Amylase activity in serum and urine from patients with pancreatitis was found to sediment, (S20,W = 4.6) in a sucrose gradient, identical to amylase from normal serum and urine. The marked increase in the excretion of beta-2-microglobulin probably reflects interference of the kidney function at the proximal tubular level. Determinations of this protein in urine may be of value in studies of kidney dysfunction that can accompany pancreatitis.
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