Lipid Peroxidation After Acute Renal Ischemia and Reperfusion in Rats: The Effect of Trimetazidine
1996
Lipid peroxidation is a critical pathway of reactive oxygen species inducing tissue injury in postischemic acute renal failure. In order to evaluate the effect of renal ischemia reperfusion on kidneys, renal tissue malondialdehyde (MDA, nmol/g wet weight) concentration was measured in 29 male Wistar rats subjected to a midline abdominal incision and 60 min occlusion of the left renal artery. A right nephrectomy was performed at the beginning of the ischemic period. The animals were separated in four groups. Groups 1 (n = 7) and 3 (n = 7) underwent 60 min of ischemia and 15 min of repefusion, respectively. Groups 2 (n = 8) and 4 (n = 7) were subjected to the same procedure but, in addition, they received 2.5 mg/kg TMZ into the tail vein 2 h prior to the left renal artery occlusion. A significant elevation of MDA after 60 min of ischemia (1.43 vs. 2.1, p < 0.001), which was augmented after 15 min of reperfusion (1.4 vs. 3.72, p < 0.001) was observed. Furthermore, there was a significant reduction of renal t...
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