Usama M. Mahmoud

Effects of 4-nonylphenol on blood cells of the African catfish Clarias gariepinus (Burchell, 1822)

Imam A. Mekkawy, Usama M. Mahmoud, Alaa El‐Din H. Sayed · Tissue and Cell · 2011 · 134 citations

Life Sciences, Toxicology, Zoology +11

Effects of cadmium on some haematological and biochemical characteristics of Oreochromis niloticus (Linnaeus, 1758) dietary supplemented with tomato paste and vitamin E

Imam A. Mekkawy, Usama M. Mahmoud, Ekbal T. Wassif et al. · Fish Physiology and Biochemistry · 2010 · 86 citations

Veterinary Medicine, Nutritional Sciences, Toxicology +13

Hepatotoxic effects of silver nanoparticles on Clarias gariepinus; Biochemical, histopathological, and histochemical studies

Mervat Naguib, Usama M. Mahmoud, Imam A. Mekkawy et al. · Toxicology Reports · 2020 · 85 citations · Full text

Veterinary Medicine, Biochemistry, Toxicology +17

Reproductive biomarkers to identify endocrine disruption in Clarias gariepinus exposed to 4-nonylphenol

Alaa El‐Din H. Sayed, Usama M. Mahmoud, Imam A. Mekkawy · Ecotoxicology and Environmental Safety · 2011 · 67 citations

Pharmacy, Endocrinology, Toxicology +16

Effects of ultraviolet A on the activity of two metabolic enzymes, DNA damage and lipid peroxidation during early developmental stages of the African catfish, Clarias gariepinus (Burchell, 1822)

Imam A. Mekkawy, Usama M. Mahmoud, Alaa G. M. Osman et al. · Fish Physiology and Biochemistry · 2009 · 63 citations · Full text

Life Sciences, Biochemistry, Developmental Biology +14