Oxidative stress on land snail Helix aspersa as a sentinel organism for ecotoxicological effects of urban pollution with heavy metals |
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| Authors: | KY Abdel-Halim AM Abo El-Saad MM Talha AA Hussein NM Bakry |
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| Institution: | 1. Mammalian & Aquatic Toxicology Department, Central Agricultural Pesticides Laboratory, Ministry of Agriculture, Dokki, 12611 Giza, Egypt;2. Department of Zoology, Faculty of Science, University of Alexandria, El-Chatby, Alexandria, Egypt;3. Department of Pesticide Chemistry and Technology, Faculty of Agriculture, University of Alexandria, El-Chatby, Alexandria, 21545, Egypt |
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| Abstract: | The oxidative stress in the digestive gland of the land snail Helix aspersa was considered as a bioindicator for atmospheric pollution with heavy metals from several industries and vehicular traffic in Kafr El-Zayat city. Regional means of heavy metals concentration of all sites were 0.71, 7.09, 0.71, 2.68, 41.44 and 18.01 mg kg−1 wet mass for Cd, Mn, Ni, Pb, Zn and Cu, respectively. In addition, the highest values of Cd concentrations were found 1.22 and 1.73 mg kg−1 wet mass in S1 (Potato International Center) and S4 (The Nile bank), respectively. Lactate dehydrogenase (D-LDH(and recorded lipid peroxidation (LPO) levels were significantly high in S1 and S2 (Traffic station). On the other hand, the highest activity of catalase (CAT) was found in S2 (194.04% of control), while the activity of glutathione peroxidase (GPx) reached the highest significant value in S1. |
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| Keywords: | Atmospheric pollution Biomarkers Heavy metals Oxidative stress Metallothioneins |
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