PMID- 33848734 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20240222 IS - 1090-2414 (Electronic) IS - 0147-6513 (Linking) VI - 216 DP - 2021 Apr 10 TI - Immune response and susceptibility of Nile tilapia fish to Aeromonas hydrophila infection following the exposure to Bifenthrin and/or supplementation with Petroselinum crispum essential oil. PG - 112205 LID - S0147-6513(21)00316-X [pii] LID - 10.1016/j.ecoenv.2021.112205 [doi] AB - Bifenthrin (BF) is a widely used 3rd generation type I pyrethroid with a potential toxic effect in fish. Nevertheless, its effect on the immune system remains unclear. In the present study, Oreochromis niloticus was exposed to BF at 0.68 mug/L for 60 days, followed by evaluating the hematological, biochemical, and immunological responses. Additionally, the potential of parsley (Petroselinum crispum) essential oil (PEO) to ameliorate the BF-induced toxic insults was explored. Our data have shown reductions in the growth performance with alterations observed in the hematological variables, protein profile and serum biomarkers of stress. DNA oxidative damage was evidenced by elevation of serum 8-hydroxy-2-deoxyguanosine (8-OHdG) content. BF-exposed fish presented also decline in serum lysozyme activity and levels of immunoglobulins (IgG and IgM) and nitric oxide (NO), with diminished resistance to Aeromonas hydrophila challenge. Furthermore, the RT-PCR analysis showed an upregulated expression pattern of immune -related genes including interleukin 1beta (IL-1beta), interferon - gamma (IFN-gamma) and tumor necrosis factor - alpha (TNF-alpha) genes in the liver tissue. Dietary co-supplementation of PEO at 1 or 2 mL/kg diet with concomitant BF exposure, alleviated the adverse effects of the insecticide in a dose-dependent manner. The observations from this study demonstrate the immunomodulation by BF and provide further insight into the protective properties of PEO and strengthen its applicability as a promising feed supplement to fish. CI - Copyright (c) 2021 The Authors. Published by Elsevier Inc. All rights reserved. FAU - Farag, Mayada R AU - Farag MR AD - Forensic Medicine and Toxicology Department, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44519, Egypt. FAU - Alagawany, Mahmoud AU - Alagawany M AD - Poultry Department, Agriculture Faculty, Zagazig University, Zagazig 44519, Egypt. FAU - Taha, Heba S A AU - Taha HSA AD - Genetic Department, Faculty of Agriculture, Zagazig University, Zagazig 44519, Egypt. FAU - Ismail, Tamer Ahmed AU - Ismail TA AD - Department of Clinical Laboratory Sciences, Turabah University College, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia. FAU - Khalil, Samah R AU - Khalil SR AD - Forensic Medicine and Toxicology Department, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44519, Egypt. Electronic address: dr_samahkhalil@yahoo.com. FAU - Abou-Zeid, Shimaa M AU - Abou-Zeid SM AD - Forensic Medicine and Toxicology Department, Faculty of Veterinary Medicine, University of Sadat City, 32897, Egypt. LA - eng PT - Journal Article DEP - 20210410 PL - Netherlands TA - Ecotoxicol Environ Saf JT - Ecotoxicology and environmental safety JID - 7805381 SB - IM OTO - NOTNLM OT - 8-hydroxy-2-deoxyguanosine OT - Bifenthrin OT - Immunity OT - Oreochromis niloticus OT - Petroselinum crispum EDAT- 2021/04/14 06:00 MHDA- 2021/04/14 06:01 CRDT- 2021/04/13 20:17 PHST- 2021/01/26 00:00 [received] PHST- 2021/03/23 00:00 [revised] PHST- 2021/03/29 00:00 [accepted] PHST- 2021/04/14 06:01 [medline] PHST- 2021/04/14 06:00 [pubmed] PHST- 2021/04/13 20:17 [entrez] AID - S0147-6513(21)00316-X [pii] AID - 10.1016/j.ecoenv.2021.112205 [doi] PST - aheadofprint SO - Ecotoxicol Environ Saf. 2021 Apr 10;216:112205. doi: 10.1016/j.ecoenv.2021.112205.