Volume 43, Issue 4 p. 567-576
Research Communication

Anti-inflammatory, antioxidant, and immunomodulatory effects of curcumin in ovalbumin-sensitized rat

Farzaneh Shakeri

Farzaneh Shakeri

Neurogenetic Inflammation Research Centre, Mashhad University of Medical Sciences, Mashhad, Iran

Department of Physiology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran

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Mohammad Hossein Boskabady

Corresponding Author

Mohammad Hossein Boskabady

Neurogenetic Inflammation Research Centre, Mashhad University of Medical Sciences, Mashhad, Iran

Department of Physiology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran

Address for correspondence: Mohammad Hossein Boskabady, Neurogenic Inflammation Research Center and Department of Physiology, School of Medicine, Mashhad University of Medical Sciences, Mashhad 9177948564, Iran. Tel.: +98 51 38828565; Fax: +98 51 38828564; E-mail: [email protected] and [email protected]Search for more papers by this author
First published: 16 May 2017
Citations: 53

Abstract

Background: Anti-inflammatory and antioxidant properties of curcumin have been shown. In this study, anti-inflammatory, antioxidant, and immunomodulatory effects of curcumin in sensitized rat were evaluated. Methods: Six groups of rats including control (C), ovalbumin-sensitized (as a rat model of asthma, S), S groups treated with curcumin (Cu 0.15, 0.30, and 0.60 mg/mL), and 1.25 μg/mL dexamethasone (S + D) were studied. Curcumin and dexamethasone were given in animals' drinking water during sensitization period. Total and differential WBC count, PLA2, TP, IFN-γ, IL-4, IgE, oxidant, and antioxidant biomarker levels in bronchoalveolar lavage fluid (BALF) were examined. Results: Total WBC, neutrophil and eosinophil counts, levels of PLA2, TP, IgE, IL-4, NO2, NO3, and MDA in BALF were increased but lymphocyte percentage, SOD, CAT, thiol, and IFN-γ levels and IFN-γ/IL-4 ratio decreased in S animals compared to controls (P < 0.001 for all cases). Treatment with all concentrations of curcumin significantly improved total WBC, PLA2, TP, IgE, IL-4, IFN-γ, IFN-γ/IL-4 ratio, SOD, thiol, NO2, and NO3 compared to S group (P < 0.01 to P < 0.001). Two higher concentrations of curcumin significantly decreased neutrophil and eosinophil counts and MDA level but increased IFN-γ, CAT and lymphocyte values compared to S group (P < 0.001 for all cases). Dexamethasone treatment also significantly improved most of the measured parameters (P < 0.05 to P < 0.001) but it did not change IL-4 and IFN-γ levels and IFN-γ/IL-4 ratio. Conclusion: Anti-inflammatory, antioxidant, and immunomodulatory effects of curcumin with more specific immunomodulatory effect on Th1/Th2 balance compared to dexamethasone in sensitized rats was shown. © 2017 BioFactors, 43(4):567–576, 2017