scholarly journals Antioxidant Activity of Lupine Seeds in Nile Tilapia Fish (O. niloticus) Suspected to Oxidative Stress Induced by Neemazal T/S

2015 ◽  
Vol 3 (2) ◽  
pp. 170-178
Author(s):  
Ashraf A. El-Badawi
Keyword(s):  
Oxidative Stress ◽  
Antioxidant Activity ◽  
Nile Tilapia ◽  
Antioxidant Enzyme Activities ◽  
Oxidative Stress Parameter ◽  
Antioxidant Efficiency ◽  
Lupine Seed ◽  
Oxidative Damages ◽  
Nile Tilapia Oreochromis Niloticus ◽  
Antioxidant Parameters

This study was designed to determine the effects of acute toxicity of NeemAzal T/S on Nile tilapia (Oreochromis niloticus) and to investigate the antioxidant effect of Lupine seeds on the gills and erythrocytes(EC) oxidative stress induced by NeemAzal T/S in Nile tilapia .Two doses of NeemAzal; 1/10 LC50:16 PPM (NA1) and 1/5 LC50:32 PPM (NA2) and three periods of 10, 20 and 30 days were used. Oxidative stress parameter, total peroxide (TP) and antioxidant enzyme activities, catalase (CAT) and superoxide dismutase (SOD) as well as glycemia were measured. NA2 markedly decreased CAT and SOD activities in gills and erythrocytes at most periods, but NA1 had less effect. In turn, both doses significantly enhanced TP levels in gills and EC. Moreover, hyperglycemia was detected 30 days after control (NA) exposure. LS significantly curtailed or abolished the adverse effect of NA exposure on oxidative and antioxidant parameters in gills and EC. This may be attributed to the hypoglycemic effect of LS as well as its antioxidant efficiency. In conclusion, Lupine seed exerts a potent antioxidant activity against oxidative damages induced by NeemAzal T/S in Nil tilapia fish.Int J Appl Sci Biotechnol, Vol 3(2): 170-178 DOI: http://dx.doi.org/10.3126/ijasbt.v3i2.12284 

scholarly journals The Duckweed, Lemna minor Modulates Heavy Metal-Induced Oxidative Stress in the Nile Tilapia, Oreochromis niloticus

Water ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 2983
Author(s):  
Fagr Kh. Abdel-Gawad ◽  
Wagdy K. B. Khalil ◽  
Samah M. Bassem ◽  
Vikas Kumar ◽  
Costantino Parisi ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Heavy Metal ◽  
Oreochromis Niloticus ◽  
Nile Tilapia ◽  
Lemna Minor ◽  
Fish Growth ◽  
High Dose ◽  
Gene Expressions ◽  
Nile Tilapia Oreochromis Niloticus ◽  
Cu And Zn

A two-fold integrated research study was conducted; firstly, to understand the effects of copper (Cu) and zinc (Zn) on the growth and oxidative stress in Nile tilapia, Oreochromis niloticus; secondly, to study the beneficial effects of the duckweed Lemna minor L. as a heavy metal remover in wastewater. Experiments were conducted in mesocosms with and without duckweed. Tilapia fingerlings were exposed to Cu (0.004 and 0.02 mg L−1) and Zn (0.5 and 1.5 mg L−1) and fish fed for four weeks. We evaluated the fish growth performance, the hepatic DNA structure using comet assay, the expression of antioxidative genes (superoxide dismutase, SOD; catalase, CAT; glutathione peroxidase, GPx and glutathione-S-transferase, GST) and GPx and GST enzymatic activity. The results showed that Zn exhibited more pronounced toxic effects than Cu. A low dose of Cu did not influence the growth whereas higher doses of Cu and Zn significantly reduced the growth rate of tilapia compared to the control, but the addition of duckweed prevented weight loss. Furthermore, in the presence of a high dose of Cu and Zn, DNA damage decreased, antioxidant gene expressions and enzymatic activities increased. In conclusion, the results suggest that duckweed and Nile tilapia can be suitable candidates in metal remediation wastewater assessment programs.

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