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Effect of dietary vitamin E on biochemical, oxidative stress and immunological parameters in Nile tilapia exposed to penoxsulam

Effect of dietary vitamin E on biochemical, oxidative stress and immunological parameters in Nile... This study was performed to determine the median lethal concentration (96-h LC50) of penoxsulam (PNX) in Nile tilapia, Oreochromis niloticus, fingerlings and to investigate the protective effect of vitamin E (Vit E) against biochemical and immunological alterations induced by two sublethal concentrations of PNX (1/10 and 1/20 of 96-h LC50). The 96-h LC50 of PNX was found to be 3.1 mg l−1. Fish was exposed to sublethal concentrations of PNX for 45 days. The fish exposed to Vit E + PNX were fed a Vit E-supplemented diet (700 mg kg–1 diet) daily for 10 days, then exposed to the same concentrations of PNX and fed a Vit E-supplemented diet for 45 days. The results showed that PNX exposure caused significant concentration-dependent increases in serum alanine transaminase, aspartate transaminase, creatinine, malondialdehyde and nitric oxide and significant decreases in serum total protein, albumin, reduced glutathione, glutathione peroxidase, superoxide dismutase and lysozyme activity. Furthermore, PNX significantly upregulated the expression of immune-related genes in the head kidney in a concentration-dependent manner when compared with the control group. However, Vit E supplementation in the diet alleviated PNX-induced toxic effects. These results concluded that Vit E could be effective in the protection of fish against PNX toxicity. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png African Journal of Aquatic Science Taylor & Francis

Effect of dietary vitamin E on biochemical, oxidative stress and immunological parameters in Nile tilapia exposed to penoxsulam

Saber, TM; ElHady, M; Ali, HA
African Journal of Aquatic Science , Volume 44 (3): 9 – Oct 18, 2019
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Effect of dietary vitamin E on biochemical, oxidative stress and immunological parameters in Nile tilapia exposed to penoxsulam

Abstract

This study was performed to determine the median lethal concentration (96-h LC50) of penoxsulam (PNX) in Nile tilapia, Oreochromis niloticus, fingerlings and to investigate the protective effect of vitamin E (Vit E) against biochemical and immunological alterations induced by two sublethal concentrations of PNX (1/10 and 1/20 of 96-h LC50). The 96-h LC50 of PNX was found to be 3.1 mg l−1. Fish was exposed to sublethal concentrations of PNX for 45 days. The fish exposed to Vit E + PNX...
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Publisher
Taylor & Francis
Copyright
© 2019 NISC (Pty) Ltd
ISSN
1727-9364
eISSN
1608-5914
DOI
10.2989/16085914.2019.1628699
Publisher site
See Article on Publisher Site

Abstract

This study was performed to determine the median lethal concentration (96-h LC50) of penoxsulam (PNX) in Nile tilapia, Oreochromis niloticus, fingerlings and to investigate the protective effect of vitamin E (Vit E) against biochemical and immunological alterations induced by two sublethal concentrations of PNX (1/10 and 1/20 of 96-h LC50). The 96-h LC50 of PNX was found to be 3.1 mg l−1. Fish was exposed to sublethal concentrations of PNX for 45 days. The fish exposed to Vit E + PNX were fed a Vit E-supplemented diet (700 mg kg–1 diet) daily for 10 days, then exposed to the same concentrations of PNX and fed a Vit E-supplemented diet for 45 days. The results showed that PNX exposure caused significant concentration-dependent increases in serum alanine transaminase, aspartate transaminase, creatinine, malondialdehyde and nitric oxide and significant decreases in serum total protein, albumin, reduced glutathione, glutathione peroxidase, superoxide dismutase and lysozyme activity. Furthermore, PNX significantly upregulated the expression of immune-related genes in the head kidney in a concentration-dependent manner when compared with the control group. However, Vit E supplementation in the diet alleviated PNX-induced toxic effects. These results concluded that Vit E could be effective in the protection of fish against PNX toxicity.

Journal

African Journal of Aquatic Science – Taylor & Francis

Published: Oct 18, 2019

Keywords: antioxidant status; immunotoxicity; Oreochromis niloticus; penoxsulam; vitamin E

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