The role of cycloxygenase-2 in the rodent kidney following ischaemia/reperfusion injury in vivo

Patel, N.S.A., Cuzzocrea, S., Collino, M., Chatterjee, P.K., Mazzon, E., Britti, D., Yaqoob, M.M. and Thiemermann, C. (2007) The role of cycloxygenase-2 in the rodent kidney following ischaemia/reperfusion injury in vivo European Journal of Pharmacology, 562 (1-2). pp. 148-154. ISSN 0014-2999

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Abstract

The role of cyclooxygenase-2 (COX-2) in the pathophysiology of renal ischaemia/reperfusion injury is still not fully understood. In order to elucidate the role of COX-2 in ischaemia/reperfusion injury of the kidney, we have evaluated the effects of ischaemia/reperfusion on renal dysfunction and injury in (i) rats treated with either vehicle or the selective COX-2 inhibitor parecoxib, and (ii) wild-type mice or mice in which the gene for COX-2 has been deleted (COX-2 knock-out mice or COX-2−/−). Rats were subjected to bilateral renal ischaemia (45 min) and reperfusion (6 h), and received parecoxib (20 mg/kg, i.v.) 30 min prior to ischaemia and 3 h after the commencement of reperfusion. Serum urea, serum creatinine, serum aspartate aminotransferase, creatinine clearance and fractional excretion of sodium were all used as indicators of renal dysfunction and injury. Mice (wild-type and COX-2−/−) were subjected to bilateral renal ischaemia (30 min) and reperfusion (24 h) after which renal dysfunction (serum urea and creatinine) and renal injury was assessed by histological analysis. Parecoxib significantly augmented the degree of renal dysfunction and injury caused by ischaemia/reperfusion in the rat. In addition, the degree of renal injury and dysfunction caused by ischaemia/reperfusion was also significantly augmented in COX-2−/− mice when compared to their wild-type littermates. These findings support the view that metabolites of COX-2 protect the kidney against ischaemia/reperfusion injury, and (ii) that selective inhibitors of COX-2 may worsen renal dysfunction and injury in conditions associated with renal ischaemia.

Item Type: Journal article
Subjects: C000 Biological and Biomedical Sciences > C700 Molecular Biology, Biophysics and Biochemistry
DOI (a stable link to the resource): 10.1016/j.ephar.2007.01.079
Faculties: Faculty of Science and Engineering > School of Pharmacy and Biomolecular Sciences > Chemical Biology
Depositing User: editor spbs
Date Deposited: 08 Nov 2007
Last Modified: 22 Oct 2014 10:59
URI: http://eprints.brighton.ac.uk/id/eprint/2619

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