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Protective effect of broccoli and ferulic acid on imidacloprid-induced hepatotoxicity in rat


Mahgoub M Ahmed
Sawsan A Nasr

Abstract

Imidacloprid may induce oxidative stress leading to generate free radicals and alternate oxygen free  radical scavenging enzyme system. This study aims to investigate the hepatoprotective effect of broccoli water extract and ferulic acid on imidacloprid induced oxidative stress and DNA damage in male albino rats. Rats were co-treated with broccoli water extract (200 mg/kg) or ferulic acid (20 mg/kg) with imidacloprid (80 mg/kg) orally for 28 days.The results revealed that imidacloprid induced high serum levels of aspartate   aminotransferase (AST), alanine aminotransferase (ALT) and alkaline phosphatase (ALP). However,  administration of broccoli and ferulic acid reduced these parameters. Broccoli and ferulic acid significantly  (P<0.05) attenuated the imidacloprid-induced increases in lipid peroxidation (LPO), tumor necroses factor α (TNF-α) and nitric oxide (NO) contents and meyloperoxidase (MPO), glutathione-S-transferase (GST) and glucose-6-phosphate dehydrogenase (G6PD) activities. Imidacloprid decreased reduced glutathione (GSH) while co-treatment with broccoli and ferulic acid significantly (P<0.05) improved the level of GSH. DNA damage as assessed by comet assay was increased in imidacloprid-treated group. However, DNA damage  was decreased in broccoli and ferulic acid treated groups. The possible mechanism of broccoli and ferulic acid extract on imidacloprid might be due to decreasing oxidative stress (LPO, NO and DNA damage) and increasing GSH content. Thus, broccoli and  ferulic acid was suggested to protected rat’s liver against imidacloprid-induced oxidative stress and DNA damage in liver.


Keywords: broccoli, ferulic acid, imidacloprid, DNA damage, oxidative stress, GSH

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eISSN: 1687-1502