Article Publish Status: FREE
Abstract Title:

Anti-Inflammatory and Anti-Oxidant Activity ofExtract on LPS-Induced Rat Lung Injury.

Abstract Source:

Molecules. 2019 Jan 1 ;24(1). Epub 2019 Jan 1. PMID: 30609661

Abstract Author(s):

Vafa Baradaran Rahimi, Hassan Rakhshandeh, Federica Raucci, Benedetta Buono, Reza Shirazinia, Alireza Samzadeh Kermani, Francesco Maione, Nicola Mascolo, Vahid Reza Askari

Article Affiliation:

Vafa Baradaran Rahimi


Acute lung injury (ALI) and acute respiratory distress syndrome (ARDS) are classified as two lung complications arising from various conditions such as sepsis, trauma, and lung inflammation. Previous studies have shown that the extract of the leaves of(PO) possesses anti-inflammatory and anti-oxidant activities. In the present study, the effects of PO (50⁻200 mg/kg) and dexamethasone (Dexa; 1.5 mg/kg) on lipopolysaccharide (LPS)-induced ALI were investigated. Subsequentially, the lung wet/dry ratio; white blood cells (WBC); levels of nitric oxide (NO); myeloperoxidase (MPO); malondialdehyde (MDA); thiol groups formation; super oxide dismutase (SOD) and catalase (CAT) activities; and levels of interleukin (IL)-1β, tumor necrosis factor (TNF)-α, IL-6, IL-10, prostaglandin E2 (PGE₂), and transforming growth factor (TGF)-β in the broncho alveolar lavage fluid (BALF) were evaluated in order to demonstrate the anti-oxidant and anti-inflammatory activity of PO. Our results show that PO suppresses lung inflammation by the reduction of IL-β, IL-6, TNF-α, PGE₂, and TGF-β, as well as by the increase of IL-10 levels. We also found that PO improves the level of WBC, MPO, and MDA, as well as thiol group formation and SOD and CAT activities, compared with the LPS group. The results of our investigation also show that PO significantly decreased the lung wet/dry ratio as an index of interstitial edema. Taken together, our findings reveal that PO extract dose-dependently displays anti-oxidant and anti-inflammatory activity against LPS-induced rat ALI, paving the way for rational use of PO as a protective agent against lung-related inflammatory disease.

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