Monday, October 22, 2018

Carob Honey Antioxidant Activity Protects Liver, Kidney

Antioxidant Activity and Protective Effect of Carob Honey in CCl4-induced Kidney and Liver Injury

Arch Med Res. 2018 Oct 17. pii: S0188-4409(18)30324-2

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Various honey samples exhibited protective effect against drug and chemical induced toxicity. The study was designed to determine the antioxidant content and activity of carob honey and to investigate its hepato-renal protective effect in carbon tetrachloride (CCl4) induced kidney and liver injury in rats.


Phenolic, flavone and flavonol in carob honey were quantified. DPPH, ABTS•+, ferric reducting antioxidant power, and total antioxidant activity were used to evaluate the antioxidant activity. Rats were used for the experiment, and received either intraperitoneal injection of CCl4 (1 mL/kg.b.wt); honey (orally, 2 g/kg.b.wt) and CCl4; or honey. Liver and kidney function parameters were assessed. Oxidative parameters including lipid peroxidation (MDA), protein carbonyl formation (PCO), advanced protein oxidation products (AOPP), catalase (CAT), glutathione peroxidase (GPx), reduced glutathione (GSH), and ascorbic acid were measured in the kidney and liver tissues.


CCl4 caused a significant elevation of liver enzymes, lactic acid dehydrogenase, blood glucose, uric acid, blood urea and serum creatinine as compared to the control group. Also, it significantly increased MDA, PCO and AOPP level, and markedly decreased GHS, ascorbic acid, CAT and GPx in the liver and kidney tissues. These changes were significantly ameliorated by carob honey before and after CCl4 administration. Honey alone did not cause significant changes as compared to the control group.


The data showed for the first time that carob honey has high antioxidant content, antioxidant property, and protective effect against CCl4 induced kidney and liver toxicity by maintaining the activity of antioxidant defense system.

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