Folch E, Serrano A, Sabater L, Gelpí E, Roselló-Catafau J, Closa D. Soluble receptors released during acute pancreatitis interfere with the detection of tumor necrosis factor-alpha.
Crit Care Med 2001;
29:1023-6. [PMID:
11378616 DOI:
10.1097/00003246-200105000-00029]
[Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE
To evaluate the interfering effect of tumor necrosis factor-alpha soluble receptor when measuring circulating concentrations of tumor necrosis factor-alpha in an experimental model of acute pancreatitis.
DESIGN
Randomized, controlled trial.
SETTING
Experimental laboratory.
SUBJECTS
Male Wistar rats.
INTERVENTIONS
Acute pancreatitis was induced by intraductal administration of 5% sodium taurocholate. Saline was administered in a control group. Serums were overloaded with known amounts of tumor necrosis factor-alpha or macrophage inflammatory protein-2.
MEASUREMENTS AND MAIN RESULTS
Three hours after induction, serum concentrations of free tumor necrosis factor-alpha, total tumor necrosis factor-alpha, and soluble receptor of tumor necrosis factor-alpha were measured. No detectable concentrations of free tumor necrosis factor-alpha were found in any experimental group. By contrast, significant increases in total tumor necrosis factor-alpha and soluble receptor of tumor necrosis factor-alpha were found after induction of pancreatitis. Overloading of serum with tumor necrosis factor-alpha resulted in detection of 50% of the expected concentrations of free tumor necrosis factor-alpha from control animals and only of 5% from the pancreatitis group. Overloading the serum with macrophage inflammatory protein-2 resulted in a detection of 100% of the expected concentrations in both control and treated animals.
CONCLUSION
Circulating soluble receptor of tumor necrosis factor-alpha could interfere with the detection of tumor necrosis factor-alpha in some pathologies, such as pancreatitis, that are associated with increases in soluble receptor of tumor necrosis factor-alpha.
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