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Malathion-induced hepatotoxicity in male Wistar rats: biochemical and histopathological studies

Environmental Science and Pollution Research volume 22, pages 17828–17838 (2015)Cite this article

Abstract

The increasing use of organophosphorus pesticides in the environment constitutes an ecotoxicological hazard especially for humans and non-target animals. Hereby, we analyzed the toxic effects of malathion on the histological structure of liver and biochemical parameters in male rats. Three groups received daily different amounts of malathion: 1/1000, 1/100, and 1/10 LD50 for 30 days. The weights of treated rat’s liver have increased. Analyzed tissues showed centrilobular and sinusoidal congestion, hepatocyte hypertrophy, cellular vacuolization, anucleated hepatocytes, depletion of organelles affecting the majority of cells, and presence of necrotic foci into the hepatic parenchyma. Histological sections of the liver showed important hepatocyte glycogen storage. We conclude that malathion stimulates the filing of glycogen in a dose-dependent manner. Biochemical parameters showed that alanine transaminase (ALT), aspartate transaminase (AST), gamma glutamyl transpeptidase (GGT), lactate dehydrogenase (LDH), and alkaline phosphatase (ALP) levels increased in the treated groups when the level of total protein decreased in intoxicated groups.

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Acknowledgments

The authors acknowledge the «Ministère Tunisien de l’Enseignement Supérieur, de la Recherche Scientifique et de la Technologie» for financial support of this study by fundus allocated to 02/UR/08-03. We also would like to thank the staff of the Department of Hematology and Biochemistry of the University-Hospital Fattouma Bourguiba of Monastir (Tunisia) for their help.

Conflict of interest

The authors declare that they have no competing interests.

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    1. Laboratory of Histology and Cytogenetic, Faculty of Medicine, Research Unity of Genetic (02/UR/08-03), Avenue Ibnou Sina 5000, Monastir, Tunisia

      Imen Flehi-Slim, Issam Chargui, Sonia Boughattas, Aymen El Mabrouk, Yosra Belaïd-Nouira, Zohra Haouas & Hassen Ben Cheikh

    2. Laboratory of Biochemistry-Toxicology, University Hospital of Monastir, Monastir, Tunisia

      Fadwa Neffati & Mohamed Fadhel Najjar

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    1. Imen Flehi-Slim
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    Correspondence to Sonia Boughattas.

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    Imen Flehi-Slim and Issam Chargui contributed equally to this work.

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    Flehi-Slim, I., Chargui, I., Boughattas, S. et al. Malathion-induced hepatotoxicity in male Wistar rats: biochemical and histopathological studies. Environ Sci Pollut Res 22, 17828–17838 (2015). https://doi.org/10.1007/s11356-015-5014-5

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    Keywords

    • Malathion
    • Rat
    • Liver
    • Biochemical parameters
    • Histopathology
    • Glycemia
    • Gavage