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Protective Effects of Combined Selenium and Pomegranate Treatment in Arsenic-Induced Hepatotoxicity

Oxidative stress is one of the major mechanisms implicated in inorganic arsenic poisoning. Punica granatum is known by its free radical scavenging properties.

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The aim of this study was to evaluate the protective role of combined selenium and Punica Granatum against arsenic-induced liver injury.

RESEARCH TITLE: Protective Effects of Combined Selenium and Punica granatum Treatment on Some Inflammatory and Oxidative Stress Markers in Arsenic-Induced Hepatotoxicity in Rats

COUNTRIES: Egypt

CONDUCTED BY: Department of Medical Biochemistry, Faculty of Medicine, Tanta University, Egypt; Department of Clinical Pharmacology, Faculty of Medicine, Menoufia University, Egypt

PUBLISHED ON: Biological Trace Element Reseach

RESEACH:

Abstract

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Oxidative stress is one of the major mechanisms implicated in inorganic arsenic poisoning. Punica granatum is known by its free radical scavenging properties. The aim of this study was to evaluate the protective role of combined selenium and P. granatum against arsenic-induced liver injury. Seventy-five female albino rats were divided into five groups (of 15 rats each). Toxicity was induced by oral sodium arsenite (5.5 mg/kg body weight (bw) daily) (group ІІ). Treatment of arsenic-intoxicated rats was induced by daily oral administration of sodium selenite (3 mg/kg bw) (group ІІІ), 100 mg of Punica granatum ethanol extract per kilogram body weight dissolved in 300 mL distilled water in three divided doses (100 mL of this suspension every 8 h) (group IV), and combined daily oral treatment with both selenite and Punica granatum ethanol extract (group V). After 3 weeks, serum and liver tissues were obtained from the decapitated rats for different estimations. Hepatotoxicity was demonstrated by significant elevation in liver weights and activities of liver enzymes, alanine aminotransferase (ALT) and aspartate aminotransferase (AST), and decrease in serum total proteins and albumin (p < 0.05) which were confirmed by histopathological examination. Additionally, arsenic hepatotoxicity led to an increased values of malondialdehyde, advanced oxidation protein products, nitric oxide, and interleukin-6 (IL-6) (p < 0.05) and decreased activity of thioredoxin reductase, values of total anti-oxidant capacity, and nuclear factor erythroid 2-related factor 2 (Nrf2) gene expression. Significant improvement in all assessed parameters was observed in rat group treated with both Punica granatum and selenium. It was concluded that combined Punica granatum and selenium treatment had a synergistic hepatoprotective effect against arsenic toxicity through activation of Nrf2 anti-oxidant pathway.

YEAR: 2015

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