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    Potential Recruiting and Hepatoprotective Effects of Ellagic Acid in D-Galactosamine-Induced Liver Damage in Rats
    (Zoological Soc Pakistan, 2017) Cengiz, Mustafa; Ali, Jama Hussein; Kutlu, H. Mehtap; Vejselova, Djanan; Ayhanci, Adnan
    The present study aims to investigate the therapeutic and protective effects of ellagic acid (EA) on the toxicity of the liver induced by D-Galactosamine (D-GaIN) in rats. With this in mind, the rats were categorized into five groups. The study groups were given saline, 0.2 % dimethyl sulfoxide, D-GaIN, EA plus D-GaIN and D-GaIN plus EA, respectively. In the group given D-GaIN, the following transmission electron microscopic and light microscopic results were found: degenerative changes in the liver tissue, significant decreased in the number of activated Bcl-2, while increased in the number of Bax and caspase-3-positive hepatocytes, a significantly increase in levels of the activities of biochemistry markers (serum alanine transaminase (ALT), aspartate transaminase (AST) and alkaline phosphatase (ALP)). In contrast, in the groups given D-GaIN and EA, a decrease in the damage of the liver tissue, a significant decrease activated Bax and caspase-3-positive hepatocytes, while increase in the number of Bcl-2 positive hepatocytes, a decrease in the biochemistry markers levels were found. Group 4, given EA before D-GaIN, showed better results when compared to Group 5, given EA after D-GaIN, in terms of histopathological and biochemical values. In conclusion, EA might play an important role in repairing D-GaIN-induced liver damage both as a protective and a therapeutic agent.
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    Öğe
    Protective effects of ellagic acid in D-galactosamine-induced kidney damage in rats
    (2016-12-12) Ayhanci, Adnan; Cengiz, Mustafa; Kutlu, Hatice Mehtap; Vejselova, Djanan
    D-Galactosamine (D-GalN), which is an established experimental toxin, primarily causes liver injury by the generation of free radicals and depletion of UTP nucleotides. D-GalN intoxication also induces renal dysfunction thus, renal failure is often associated with the end-stage of the liver damage. We have investigated both preventive and curative effects of ellagic acid (EA) in this study. EA treatment at a gavage dose of 20 mg/kg body weight was administered before and after intraperitoneal (i.p.) injection of D-GalN at a dose of 750 mg/kg. Tissue and blood samples of animals were collected for morphological and biochemical evaluations. Our study results suggest that EA treatment both prior to and after the toxin administration successfully altered the toxic effects on the rats. Moreover, pre-treatment of EA was more protective than post-treatment indicated by histopathological and biochemical values. In conclusion, EA treatment both before and after D-GalN intoxication could protect kidney tissues against D-GalN induced oxidative stress.