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Trypsinogen Activation Peptides (TAP) in Peritoneal Fluid as Predictors of Late Histopathologic Injury in Necrotizing Pancreatitis of the Rat

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Abstract

The levels of trypsinogen activation peptides(TAP) were quantified by ELISA immunoassay in acutepancreatitis of the rat and compared to the degree oflate histopathological sequelae and exocrine functional impairment 4 and 12 weeks after the acute phaseof the disease. For this purpose acute pancreatitis ofdifferent severity was induced using a suitable ratmodel recently described. Forty five surviving animals were studied. The level of TAP inperitoneal exudate measured 3 and 6 hr afterpancreatitis induction correlated well with the amountof the late histopathological injury at the end of thecorresponding observation period (at 4 weeks after 3 hr: r =0.75, P = 0.003, after 6 hr: r = 0.72, P = 0.005,Pearson; and at 12 weeks after 3 hr: r = 0.86, P =0.0001, after 6 hr: r = 0.84, P = 0.0001, Pearson). A negative correlation of TAP with the impairmentof exocrine function was found only at 4 weeks for thesecretion of total protein (r = –0.76 after 3 hr;r = –0.62 after 6 hr) and for exocrine function (r = –0.67 after 3 hr, r = –0.57 after6 hr), but not at 12 weeks after acute pancreatitis. Nocorrelation with plasma amylase and lipase was found. Weconclude that quantitation of TAP in ascites provides an accurate prediction of late histopathologicsequelae. Pancreatic exocrine function could bepredicted by TAP assay only in the early stage afterpancreatitis induction (eg, four weeks). In later stages of the disease (eg, 12 weeks) remainingpancreatic tissue seems to compensate for any exocrinedeficits that have occurred.

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Authors
  1. Jan Schmidt
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  2. Eduard Ryschich
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  3. Hans P. Sinn
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  4. Sasa Maksan
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  5. Christian Herfarth
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  6. Ernst Klar
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Schmidt, J., Ryschich, E., Sinn, H.P. et al. Trypsinogen Activation Peptides (TAP) in Peritoneal Fluid as Predictors of Late Histopathologic Injury in Necrotizing Pancreatitis of the Rat. Dig Dis Sci 44, 823–829 (1999). https://doi.org/10.1023/A:1026638614855

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