title: The effect of dexmedetomidine against oxidative and tubular damage induced by renal ischemia reperfusion in rats.
abstract: Dexmedetomidine (dex) is a potent, highly selective and specific α2-adrenoreceptor agonist. This experimental study was designed to investigate protective and therapeutic effect of two different doses of dex, on kidney damage induced by ischemia-reperfusion (I/R) in rats. Male Sprague-Dawley rats were divided into four groups, each including 10 animals: control group, ischemia-reperfusion (I/R) group; treated groups with 10 μg/kg of dex and 100 μg/kg of dex. After removing right kidney of the rats, the left kidney has performed ischemia during 40 min and reperfusion in the following 3 h. The histopathological findings, and also tissue superoxide dismutase (SOD) and catalase (CAT) enzyme activity, malondialdehyde (MDA), glutathione (GSH), serum blood urea nitrogen (BUN), creatinine (Cre) and tumor necrosis factor-alpha (TNF-α) levels were determined. In the I/R group, compared to the control group, levels of BUN, Cre and kidney tissue MDA have increased significantly, SOD, CAT enzyme activity and glutathione levels have decreased significantly. In the dex10 group, compared to the I/R group, levels of Cre and TNF-α have decreased significantly, while the SOD activity has increased significantly. In the dex100 group, compared to the I/R group, levels of BUN, Cre have decreased significantly, while the SOD activity has increased significantly. In the I/R group, there was also extensive tubular necrosis, glomerular damage in the histological evaluation. Dex ameliorated these histological damages in different amounts in two treatment groups. In this study, the protective effects of dex against renal I/R injury have been evaluated by two different amount of doses.
authors: Department of Physiology and.
authors: Murat
authors: M
authors: Cakir
authors: Alaadin
authors: A
authors: Polat
authors: Suat
authors: S
authors: Tekin
authors: Nigar
authors: N
authors: Vardi
authors: Elif
authors: E
authors: Taslidere
authors: Zeynep
authors: Z
authors: Rumeysa Duran
authors: Kevser
authors: K
authors: Tanbek
mesh_terms: D058647:Adrenergic alpha-2 Receptor Agonists / Q000627:therapeutic use*; D000818:Animals; D020927:Dexmedetomidine / Q000627:therapeutic use*; D004195:Disease Models, Animal; D007668:Kidney / Q000098:blood supply* / Q000473:pathology; D007684:Kidney Tubules / Q000473:pathology; D008297:Male; D018384:Oxidative Stress; D051381:Rats; D017207:Rats, Sprague-Dawley; D015427:Reperfusion Injury / Q000188:drug therapy* / Q000473:pathology
chemical_list: D058647:Adrenergic alpha-2 Receptor Agonists; D020927:Dexmedetomidine
keywords: Dexmedetomidine; ischemia-reperfusion; oxidative stress; rat; renal