Journal
REGULATORY PEPTIDES
Volume 133, Issue 1-3, Pages 27-31Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.regpep.2005.09.006
Keywords
inflammation; endothelial cell; radionimmunoassay; traumatism; recovery
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To explore the role and the rule of leptin levels in severe traumatism, an ischemia-reperfusion injury model was established to observe change of leptin levels, and platelet activating factor, noradrenalin, lipopolysaccharide, and endothelin-1 were utilized to induce vascular endothelial cells. Leptin concentrations in serum and supernatant were detected by murine and human leptin radioimmunoassay. The results showed that the first serum leptin level significantly decreased after an injury of 60 min ischemia and 30 min reperfusion versus pre-experimental serum values, and leptin level in serum showed a variational trend to increase as reperfusion time extended; the second, supernatant leptin level significantly decreased after PAF and ET-1 treatments of 6 and 24 h versus the control group. It can be concluded that leptin maybe an inflammatory cytokine to play a protection role in acute inflammation and traumatism. (c) 2005 Elsevier B.V. All rights reserved.
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