Oleic Acid Protects Against Oxidative Stress Exacerbated by Cytarabine and Doxorubicin in Rat Brain

Title:Oleic Acid Protects Against Oxidative Stress Exacerbated by Cytarabine and Doxorubicin in Rat Brain

Volume: 16 Issue: 11

Author(s): David Calderón Guzmán, Norma Osnaya Brizuela, Maribel Ortíz Herrera, Hugo Juárez Olguín, Ernestina Hernández García, Armando Valenzuela Peraza and Gerardo Barragán Mejía

Affiliation:

Keywords: Brain, cytarabine, doxorubicin, oxidative damage, unsaturated fatty acid.

Abstract: Aim: The objective of this study was to analyze the effect of doxorubicin and cytarabine on biogenic amines and oxidative biomarkers in the brain of rats treated with oleic acid.

Methods: Thirty-six Wistar rats distributed in 6 groups, were treated as follows: group 1 (control), NaCl 0.9%; group 2 doxorubicin (1mg/kg); group 3 cytarabine (70mg /kg); group 4 oleic acid (1500μl/kg); group 5 doxorubicin + oleic acid; group 6 cytarabine + oleic acid. All compounds were administered intraperitoneally for 5 days. The Rats were sacrificed after receiving the last administration and their brains were dissected in cortex, hemispheres, and cerebellum/medulla oblongata. Blood samples were obtained on sacrifice to assess the levels of glucose and triglycerides. In each brain region, lipoperoxidation (TBARS), H₂O₂, Na⁺, K⁺ ATPase, glutathione (GSH), serotonin metabolites (5-HIAA) and dopamine were measured using validated methods.

Results: Cytarabine decreased the levels of dopamine, TBARS, GSH, H2O2 and ATPase in all regions. Doxorubicin combined with oleic acid increased the levels of GSH in cortex, and decreased ATPase in cerebellum/medulla oblongata.

Conclusion: These results suggest that the reduction of dopamine and oxidant effect during cytarabine treatment could result in brain injury but could be prevented by oleic acid supplementation.

Cite this article as:

Guzmán Calderón David, Brizuela Osnaya Norma, Herrera Ortíz Maribel, Olguín Juárez Hugo, García Hernández Ernestina, Peraza Valenzuela Armando and Mejía Barragán Gerardo, Oleic Acid Protects Against Oxidative Stress Exacerbated by Cytarabine and Doxorubicin in Rat Brain, Anti-Cancer Agents in Medicinal Chemistry 2016; 16 (11) . https://dx.doi.org/10.2174/1871520615666160504093652