Potential effects of dietary chitosan against lead-induced innate immunotoxicity and oxidative stress in Nile tilapia (Oreochromis niloticus)

Urbanization and industrialization have led to heavy metals in aquatic environments. These metals are toxic, nondegradable, and persistent. Lead (Pb) is an immunotoxicant that can adversely affect animal health, even at low levels. Chitosan (CHI) is an eco-friendly compound with exceptional antibact...

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Main Authors: Sally M. Salaah, Dalia M. El-Gaar, Hanan S. Gaber
Format: Article
Language:English
Published: Elsevier 2022-06-01
Series:Egyptian Journal of Aquatic Research
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S1687428521000790
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author Sally M. Salaah
Dalia M. El-Gaar
Hanan S. Gaber
author_facet Sally M. Salaah
Dalia M. El-Gaar
Hanan S. Gaber
author_sort Sally M. Salaah
collection DOAJ
description Urbanization and industrialization have led to heavy metals in aquatic environments. These metals are toxic, nondegradable, and persistent. Lead (Pb) is an immunotoxicant that can adversely affect animal health, even at low levels. Chitosan (CHI) is an eco-friendly compound with exceptional antibacterial and immunostimulant characteristics. This study investigated the effect of dietary CHI on the antioxidant defense system and innate immune responses of tilapia (Oreochromis niloticus) against the cytotoxic effect of prolonged Pb exposure. The results indicated dietary CHI could nullify the toxicity of prolonged Pb exposure in fish by substantially activating the antioxidant defense system capacity and fish innate immune responses. In addition, CHI minimized the alterations in the histology of fish organs. The findings suggest that chitosan can be a commercial, eco-friendly immunostimulant and bioactive compound for mitigating the effects of heavy metal toxicity in aquaculture.
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spelling doaj.art-84a37757784e46b4b2894942b7fb86f12022-12-22T00:35:32ZengElsevierEgyptian Journal of Aquatic Research1687-42852022-06-01482123129Potential effects of dietary chitosan against lead-induced innate immunotoxicity and oxidative stress in Nile tilapia (Oreochromis niloticus)Sally M. Salaah0Dalia M. El-Gaar1Hanan S. Gaber2Corresponding author.; National Institute of Oceanography and Fisheries (NIOF), EgyptNational Institute of Oceanography and Fisheries (NIOF), EgyptNational Institute of Oceanography and Fisheries (NIOF), EgyptUrbanization and industrialization have led to heavy metals in aquatic environments. These metals are toxic, nondegradable, and persistent. Lead (Pb) is an immunotoxicant that can adversely affect animal health, even at low levels. Chitosan (CHI) is an eco-friendly compound with exceptional antibacterial and immunostimulant characteristics. This study investigated the effect of dietary CHI on the antioxidant defense system and innate immune responses of tilapia (Oreochromis niloticus) against the cytotoxic effect of prolonged Pb exposure. The results indicated dietary CHI could nullify the toxicity of prolonged Pb exposure in fish by substantially activating the antioxidant defense system capacity and fish innate immune responses. In addition, CHI minimized the alterations in the histology of fish organs. The findings suggest that chitosan can be a commercial, eco-friendly immunostimulant and bioactive compound for mitigating the effects of heavy metal toxicity in aquaculture.http://www.sciencedirect.com/science/article/pii/S1687428521000790Nile tilapiaChitosanLeadAntioxidant stressInnate immunityHistological alteration
spellingShingle Sally M. Salaah
Dalia M. El-Gaar
Hanan S. Gaber
Potential effects of dietary chitosan against lead-induced innate immunotoxicity and oxidative stress in Nile tilapia (Oreochromis niloticus)
Egyptian Journal of Aquatic Research
Nile tilapia
Chitosan
Lead
Antioxidant stress
Innate immunity
Histological alteration
title Potential effects of dietary chitosan against lead-induced innate immunotoxicity and oxidative stress in Nile tilapia (Oreochromis niloticus)
title_full Potential effects of dietary chitosan against lead-induced innate immunotoxicity and oxidative stress in Nile tilapia (Oreochromis niloticus)
title_fullStr Potential effects of dietary chitosan against lead-induced innate immunotoxicity and oxidative stress in Nile tilapia (Oreochromis niloticus)
title_full_unstemmed Potential effects of dietary chitosan against lead-induced innate immunotoxicity and oxidative stress in Nile tilapia (Oreochromis niloticus)
title_short Potential effects of dietary chitosan against lead-induced innate immunotoxicity and oxidative stress in Nile tilapia (Oreochromis niloticus)
title_sort potential effects of dietary chitosan against lead induced innate immunotoxicity and oxidative stress in nile tilapia oreochromis niloticus
topic Nile tilapia
Chitosan
Lead
Antioxidant stress
Innate immunity
Histological alteration
url http://www.sciencedirect.com/science/article/pii/S1687428521000790
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