We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Tyrphostin AG 126 reduces intestinal ischemia-reperfusion injury in the rat.
- Authors
Marzocco, Stefania; Mazzon, Emanuela; Pinto, Aldo; Autore, Giuseppina; Cuzzocrea, Salvatore
- Abstract
In this study, we evaluated the effect of tyrphostin AG126, a tyrosine kinase inhibitor, in the splanchnic artery occlusion (SAO) shock mediated injury. SAO shock was induced in rats by clamping both the superior mesenteric artery and the celiac trunk for 45 min. After 1 h of reperfusion, SAO shocked rats developed a significant fall in mean arterial blood pressure. Ileum analysis revealed that SAO shock is characterized by a significant ( P<0.01) induction in TNF-α and IL−1 ileum levels, while immunohistochemistry examination of necrotic ileum demonstrated a marked increase in the immunoreactivity in intracellular adhesion molecule (ICAM−1) and nitrotyrosine formation. A significant increase in myeloperoxidase activity ( P<0.01) was also observed in rats subjected to ischemia-reperfusion injury. Tyrphostin AG126, given intraperitoneally 30 min before ischemia at the dose of 5 mg/kg, significantly improved mean arterial blood pressure, markedly reduced TNF-α and IL−1β levels and the positive staining of ICAM−1 into the reperfused ileum. Tyrphostin AG126 significantly improved the histological status of the reperfused tissue. In conclusion, this study demonstrates that tyrphostin AG126 exerts multiple protective effects in splanchnic artery occlusion/reperfusion shock and suggests that this tyrosine kinase inhibitor may be a candidate for consideration as a therapeutic intervention for ischemia-reperfusion injury.
- Subjects
ISCHEMIA; BLOOD circulation disorders; PROTEIN-tyrosine kinases; REPERFUSION injury; PROTEIN kinases; PHARMACOLOGY
- Publication
Naunyn-Schmiedeberg's Archives of Pharmacology, 2006, Vol 372, Issue 5, p362
- ISSN
0028-1298
- Publication type
Article
- DOI
10.1007/s00210-005-0029-y