Cytoprotective effect of propolis on heat stress induces alteration to histological, ultrastructural, and oxidative stress in catfish (Clarias gariepinus).

Our study helps to evaluate the immune response, antioxidative status, and resistance against heat stress (HS) in Clarias gariepinus treated with propolis extraction; the results will contribute to theories of fish physiology and immunity under high-temperature conditions. Forty-five fish were divided into three equal groups: the control, the HS group at 36 °C, and the HS treated with alcoholic extraction of propolis that dissolved in water for 3 weeks. The results of our study suggested that the stress response differs among tissues thymus, spleen, and liver.

Antagonistic effect of different selenium type on green synthesized silver nanoparticle toxicity on Oreochromis niloticus: oxidative stress biomarkers.

The current investigation pointed to report the negative impacts of silver nanoparticles [Ag] that synthesized by leaf extract of Moringa oleifera on oxidative stress biomarkers of Oreochromis niloticus, as well as the role of different Selenium type to antagonistic that toxicity. Fish were exposed to [Ag] (1.95 and 3.

Genotoxicity, oxidative stress, and biochemical biomarkers of exposure to green synthesized cadmium nanoparticles in Oreochromis niloticus (L.).

The considerable increment in the use of Nanoparticles in the industry has been recognized as an environmental concern today. Therefore, this study aimed to investigate the toxicity effects of green synthesized cadmium nanoparticles [Cd] using Moringa oleifera leaves extract on multi-biomarkers in Oreochromis niloticus after four weeks of exposure. The results showed that LC values of [Cd] for 24, 48, 72 and 96 h were 2.

Effects of microplastic exposure on the blood biochemical parameters in the pond turtle (Emys orbicularis).

The accumulation of microplastics (MPs) is a growing problem in aquatic ecosystems. Despite increased research on MPs in the last decade, their potential threat to freshwater ecosystems remains an open question. In the present study, the negative impacts of MPs were investigated on blood biochemical parameters in the European pond turtle (Emys orbicularis).

Toxicological impact of green synthesized silver nanoparticles and protective role of different selenium type on Oreochromis niloticus: hematological and biochemical response.

Background: The present work aimed to detect the toxicological effects of green synthesized silver nanoparticles (Ag-NPs) by using Moringa Oleifera leaves extract on hematological and biochemical parameters of Oreochromis niloticus.

Methods: Adult fish were exposed to two sublethal concentrations (1.95 and 3.

Selenium protection against mercury toxicity on the male reproductive system of Clarias gariepinus.

The present study aimed to evaluate the protective role of Selenium (Se) (0.1 ppm) on the male reproductive system of the catfish Clarias gariepinus exposed to sublethal doses of Mercury (Hg) (0.04 and 0.

Ultraviolet A-induced hematotoxic and genotoxic potential in Nile tilapia Oreochromis niloticus.

Fish as an aquatic organism could be harmed by various levels of solar ultraviolet radiation (UVA). The present study aimed to characterize UVA (20, 60 and 180 min for 3 days) irradiation-induced hematological and biochemical changes in Oreochromis niloticus. Hematological parameters such as the red blood cell (RBC) count, hemoglobin (Hb) level and hematocrit (Hct) value were significantly (p < 0.

Negative impacts of ultraviolet-A radiation on antioxidant and oxidative stress biomarkers of African catfish Clarias gariepinus.

The present study was carried out to evaluate the ultraviolet-A (UVA) effects on biochemical, oxidative stress and antioxidant changes using aquatic species. The destructive effects of ultraviolet-A radiation on the African Catfish, Clarias gariepinus was revealed in terms of the carbonyl protein (CP), lipid peroxidation (LPO), DNA damage, super oxide dismutase (SOD), catalase (CAT), glutathione peroxidase (Gpx), glutathione reductase (GR), glucose-6-phosphate dehydrogenase (G6PDH), lactate dehydrogenase (LDH), glutathione (GSH) and total antioxidant (TAO) in the gills, kidney, liver, muscles and skin. Also, glucose, total lipid, total protein and cortisol content of fish serums was detected.

Sublethal toxicity of carbofuran on the African catfish Clarias gariepinus: Hormonal, enzymatic and antioxidant responses.

The present study examined the impacts of carbofuran on endocrinology of the catfish, Clarias gariepinus, for the first time and evaluated cortisol (CRT), triiodothyronine (T3), thyroxin (T4), 17β-estradiol (E2) and testosterone (TST) and the oxidative stress markers including SOD, CAT, GSTs, GSH. The toxic effects on the metabolic enzymes, G6PDH and LDH, in addition to lipid peroxidation (LPO) and DNA damage as biomarkers in Nile catfish, to sublethal exposures of carbofuran (0.16 and 0.

Sublethal toxicity of carbofuran pesticide on the African catfish Clarias gariepinus (Burchell, 1822): hematological, biochemical and cytogenetic response.

The present work aimed to evaluate the toxic effects of two sublethal concentrations of carbofuran pesticide (0.16 and 0.49mg/L, for 35 days) on hematological and blood biochemical parameters of catfish, Clarias gariepinus, and to evaluate the genotoxic potential of carbofuran on the erythrocytes of C.