MgO Nanoparticle Synthesis, Chemical Delivery in Rat Model Induced Lung Injury

Abstract

Acute lung injury is a disorder of acute inflammation that causes disruption of the lung endothelial and epithelial barriers. Acute Respiratory Distress Syndrome or ARDS is a diffuse inflammatory lung process that frequently manifests in critically ill patients, with an estimated incidence of 3 million people a year. Clinically, ARDS is manifested by bilateral or diffuse radiographic infiltrates, hypoxemia, decreased lung compliance, and increased ventilatory dead space. The histological manifestation of ARDS is diffuse alveolar damage as defined by epithelial injury, hyaline membrane formation and alveolar flooding with proteinaceous fluid, increase alveolar surface area and frequently neutrophilic inflammation. The animal model correlate to ARDS as an acute lung injury (ALI). Models were employed to test potential new therapeutic interventions and to investigate under-lying mechanistic pathways that lead to diffuse lung injury. In this study cage cigarette smoke model was used for an acute lung injury. For that purpose, thirty (30) young albino healthy rats were used, and their duration of trial was 21 days. Each group was given an oral drug administration containing MgO-150mg/kg, MgO-300mg/kg BW for treatment and diet schedule in young albino rats of male sex for the experimental procedure of 0 to 21 days. Mean body weight, BALF, lipid profile, liver profile and lung histology were assessed. Results revealed that MgO nanoparticles exhibited antioxidant capacity at dosages of 300mg/kg, and 150mg/kg. This formulation of selected nanoparticles at high dose exhibited an acute lung injury and antioxidant effects as compared to low dose extract. Additionally, transcriptional factors revealed up-regulation at high dose in contrast to the low dose extract in lung injury treated groups.