Fluoxetine ameliorates imbalance of redox homeostasis and inflammation in an acute kidney injury model

• Published in: Journal of physiology and biochemistry Vol. 70; no. 4; pp. 925 - 934
• Main Authors: Aksu, Ugur, Guner, Ibrahim, Yaman, Onur M., Erman, Hayriye, Uzun, Duygu, Sengezer-Inceli, Meliha, Sahin, Ahmet, Yelmen, Nermin, Gelisgen, Remisa, Uzun, Hafize, Sahin, Gulderen
• Format: Journal Article
• Language: English
• Published: Dordrecht Springer Netherlands 01.12.2014
• Subjects: Acute Kidney Injury - drug therapy; Acute Kidney Injury - metabolism; Animal Physiology; Animals; Anti-Inflammatory Agents - pharmacology; Anti-Inflammatory Agents - therapeutic use; Antioxidants - pharmacology; Antioxidants - therapeutic use; Biomedical and Life Sciences; Biomedicine; Cytokines - physiology; Drug Evaluation, Preclinical; Fluoxetine - pharmacology; Fluoxetine - therapeutic use; Human Physiology; Ischemia - drug therapy; Ischemia - metabolism; Kidney - blood supply; Kidney - drug effects; Kidney - metabolism; Male; Original Paper; Oxidation-Reduction; Oxidative Stress; Peroxidase - metabolism; Rats, Sprague-Dawley; Reperfusion Injury - drug therapy; Reperfusion Injury - metabolism; Oxidative stress; Inflammation; Fluoxetine; Acute kidney injury; Ischemia reperfusion
• ISSN: 1138-7548; 1877-8755
• DOI: 10.1007/s13105-014-0361-0

Ischemia-reperfusion (IR) has been reported to be associated with augmented reactive oxygen radicals and cytokines. Currently, we aimed to examine the influence of fluoxetine, which is already used as a preoperative anxiolytic, in the context of IR induced by occlusion of infrarenal abdominal aorta (60 min of ischemia) and its effects on renal oxidative status, inflammation, renal function, and cellular integrity in reperfusion (120 min post-ischemia). Male rats were randomly assigned as control, IR, and pretreated groups. The pretreated group animals received fluoxetine (20 mg/kg, i.p.) once daily for 3 days. Renal tissue oxidative stress, myeloperoxidase activity, proinflammatory cytokines (tumor necrosis factor-α, interleukin-1β, interleukin-6), histology, and function were assessed. As an anti-inflammatory cytokine, interleukin-10 was also assessed. IR led to a significant increase in lipid hydroperoxide, malondialdehyde, and pro-oxidant antioxidant balance and decrease in superoxide dismutase activity and ferric reducing/antioxidant power level ( p  < 0.05), but fluoxetine was able to restore these parameters. High concentrations of tumor necrosis factor-α, interleukin-1β, interleukin-6, and myeloperoxidase activity caused by IR were significantly decreased in kidney tissue with fluoxetine. In addition, interleukin-10 levels were high in fluoxetine pretreated group. IR resulted in disrupted cellular integrity, infiltration of tissue with leukocytes, and decreased serum creatinine-urea levels ( p  < 0.05). Fluoxetine significantly restored impaired redox balance and inflammation parameters of rats subjected to IR to baseline values. This beneficial effect of fluoxetine on redox balance might be addressed to an improvement in renal function.