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Mahboub HH, Gad WM, Aziz EK, Nasr MA, Fahmy EM, Mansour DM, Rasheed N, Ali HS, Ismail SH, Abdel Rahman AN. Silica nanoparticles alleviate the immunosuppression, oxidative stress, biochemical, behavioral, and histopathological alterations induced by Aeromonas veronii infection in African catfish ( Clarias gariepinus). Fish Physiol Biochem 2024; 50:767-783. [PMID: 38060081 PMCID: PMC11021351 DOI: 10.1007/s10695-023-01274-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Accepted: 11/24/2023] [Indexed: 12/08/2023]
Abstract
In the aquaculture industry, silica nanoparticles (SiNPs) have great significance, mainly for confronting diseases. Therefore, the present study aims to assess the antibacterial efficiency of SiNPs as a versatile trial against Aeromonas veronii infection in African catfish (Clarias gariepinus). Further, we investigated the influence of SiNPs in palliating the immune-antioxidant stress biochemical, ethological, and histopathological alterations induced by A. veronii. The experiment was conducted for 10 days, and about 120 fish were distributed into four groups at random, with 30 fish each. The first group is a control that was neither exposed to infection nor SiNPs. The second group (SiNPs) was vulnerable to SiNPs at a concentration of 20 mg/L in water. The third group was experimentally infected with A. veronii at a concentration of 1.5 × 107 CFU/mL. The fourth group (A. veronii + SiNPs) was exposed to SiNPs and infected with A. veronii. Results outlined that A. veronii infection induced behavioral alterations and suppression of immune-antioxidant responses that appeared as a clear decline in protein profile indices, complement 3, lysozyme activity, glutathione peroxidase, and total antioxidant capacity. The kidney and liver function biomarkers (creatinine, urea, alkaline phosphatase, and alanine aminotransferase) and lipid peroxide (malondialdehyde) were substantially increased in the A. veronii group, with marked histopathological changes and immunohistochemical alterations in these tissues. Interestingly, the exposure to SiNPs resulted in a clear improvement in all measured biomarkers and a noticeable regeneration of the histopathological changes. Overall, it will establish that SiNPs are a new, successful tool for opposing immunological, antioxidant, physiological, and histopathological alterations induced by A. veronii infection.
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Affiliation(s)
- Heba H Mahboub
- Department of Aquatic Animal Medicine, Faculty of Veterinary Medicine, Zagazig University, Box 44511, Sharkia, Zagazig, PO, Egypt.
| | - Wafaa M Gad
- Department of Bacteriology, Animal Health Research Institute (AHRI) (Mansoura Branch), Agriculture Research Center (ARC), Box 246 Dokki, Giza, PO, 12618, Egypt
| | - Enas K Aziz
- Department of Husbandry and Animal Wealth Development, Faculty of Veterinary Medicine, University of Sadat, Box 32897, Menofia, Sadat City, PO, Egypt
| | - Mona Abdelghany Nasr
- Department of Anatomy and Embryology, Faculty of Veterinary Medicine, University of Sadat City, Box 32897, Menofia, Sadat City, PO, Egypt
| | - Esraa M Fahmy
- Department of Pharmacology, Faculty of Veterinary Medicine, Zagazig University, Box 44511, Sharkia, Zagazig, PO, Egypt
| | - Dina Mohamed Mansour
- Department of Fish Diseases and Management, Animal Health Research Institute (AHRI), Agriculture Research Center (ARC) (Hurghada branch), Box 246 Dokki, Giza, PO, 12618, Egypt
| | - Nesma Rasheed
- Department of Pathology, Animal Health Research Institute (AHRI) (Mansoura Branch), Agriculture Research Center (ARC), Box 246 Dokki, Giza, PO, 12618, Egypt
| | - Hanaa S Ali
- Department of Pathology, Animal Health Research Institute (AHRI) (Mansoura Branch), Agriculture Research Center (ARC), Box 246 Dokki, Giza, PO, 12618, Egypt
| | - Sameh H Ismail
- Faculty of Nanotechnology for Postgraduate Studies, Cairo University, Sheikh Zayed Branch Campus, Sheikh Zayed City, Box 12588, Giza, PO, Egypt
| | - Afaf N Abdel Rahman
- Department of Aquatic Animal Medicine, Faculty of Veterinary Medicine, Zagazig University, Box 44511, Sharkia, Zagazig, PO, Egypt.
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Erasmus JH, Truter M, Smit NJ, Nachev M, Sures B, Wepener V. Element contamination of the Orange-Vaal River basin, South Africa: a One Health approach. Environ Sci Pollut Res Int 2024; 31:29886-29901. [PMID: 38589590 PMCID: PMC11058963 DOI: 10.1007/s11356-024-32932-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Accepted: 03/11/2024] [Indexed: 04/10/2024]
Abstract
Numerous low-income groups and rural communities depend on fish as an inexpensive protein source worldwide, especially in developing countries. These communities are constantly exposed to various pollutants when they frequently consume polluted fish. The largest river basin in South Africa is the Orange-Vaal River basin, and several anthropogenic impacts, especially gold mining activities and industrial and urban effluents, affect this basin. The Department of Environment, Forestry and Fisheries in South Africa has approved the much-anticipated National Freshwater (Inland) Wild Capture Fisheries Policy in 2021. The aims of this study were (1) to analyze element concentrations in the widely distributed Clarias gariepinus from six sites from the Orange-Vaal River basin and (2) to determine the carcinogenic and non-carcinogenic human health risks associated with fish consumption. The bioaccumulation of eight potentially toxic elements (As, Cd, Cr, Cu, Hg, Ni, Pb, Zn) was assessed in C. gariepinus from sites with different anthropogenic sources. The human health risks were determined to assess the potential risks posed by consuming contaminated C. gariepinus from these sites. Carcinogenic health risks were associated with fish consumption, where it ranged between 21 and 75 out of 10,000 people having the probability to develop cancer from As exposure. The cancer risk between the sites ranged between 1 and 7 out of 10,000 people to developing cancer from Cr exposure. A high probability of adverse non-carcinogenic health risks is expected if the hazard quotient (HQ) is higher than one. The HQ in C. gariepinus from the six sites ranged between 1.5 and 5.6 for As, while for Hg, it was between 1.8 and 5.1. These results highlight the need for monitoring programs of toxic pollutants in major river systems and impoundments in South Africa, especially with the new fisheries policy, as there are possible human health risks associated with the consumption of contaminated fish.
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Affiliation(s)
- Johannes Hendrik Erasmus
- Water Research Group, Unit for Environmental Sciences and Management, North-West University, Potchefstroom, 2520, South Africa.
| | - Marliese Truter
- Water Research Group, Unit for Environmental Sciences and Management, North-West University, Potchefstroom, 2520, South Africa
- South African Institute for Aquatic Biodiversity (NRF-SAIAB), Makhanda, South Africa
| | - Nico Jacobus Smit
- Water Research Group, Unit for Environmental Sciences and Management, North-West University, Potchefstroom, 2520, South Africa
- South African Institute for Aquatic Biodiversity (NRF-SAIAB), Makhanda, South Africa
| | - Milen Nachev
- Department of Aquatic Ecology and Centre for Water and Environmental Research, University of Duisburg-Essen, 45141, Essen, Germany
| | - Bernd Sures
- Water Research Group, Unit for Environmental Sciences and Management, North-West University, Potchefstroom, 2520, South Africa
- Department of Aquatic Ecology and Centre for Water and Environmental Research, University of Duisburg-Essen, 45141, Essen, Germany
- Research Center One Health Ruhr, Research Alliance Ruhr, University of Duisburg-Essen, Essen, Germany
| | - Victor Wepener
- Water Research Group, Unit for Environmental Sciences and Management, North-West University, Potchefstroom, 2520, South Africa
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Anifowose OR, Oladosu GA, Omotosho OO. Occurrence and characterization of Proteus mirabilis from infected farmed African catfish in Ogun State, Nigeria. Mol Biol Rep 2024; 51:446. [PMID: 38532199 DOI: 10.1007/s11033-023-08973-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Accepted: 10/23/2023] [Indexed: 03/28/2024]
Abstract
BACKGROUND Bacterial pathogens are the causative agents of some of the most serious disease problems in cultured fish causing mortalities and severe economic losses. This study was conducted to determine the occurrence and characterization of Proteus mirabilis from infected farmed African catfish in Ogun State, Nigeria. METHODOLOGY The bacteria were isolated from diseased farmed African catfish (Clarias gariepinus, n=128) with clinical signs of skin haemorrhages, ulceration, and ascites purposively sampled from farms within three senatorial districts namely Ogun East (OE; n=76), Ogun Central (OC; n=30) and Ogun West (OW; n=22) in Ogun State. The isolates were identified based on morphological characteristics, biochemical tests, and 16S rRNA gene characterisation. The 16S rRNA gene sequences were analysed using BLAST, submitted to the NCBI database, and an accession number was generated. RESULTS The occurrence of Proteus mirabilis in infected Clarias gariepinus was 13.16%, 25%, and 31.25% in OE, OC, and OW, respectively. A significantly higher incidence was recorded in OW compared to other areas. All the Proteus mirabilis isolates were motile, gram-negative, short rod, non-lactose fermenter bacteria that showed positive catalase reactions, negative oxidase, and positive for methyl-red. The Proteus mirabilis isolates (OP 594726.1) were closely related to isolates from Pakistan, Italy, and India CONCLUSIONS: We conclude that Proteus mirabilis colonises farmed Clarias gariepinus in Ogun State, Nigeria and the identified strain showed an evolutionary relationship with known pathogenic NCBI reference strains from other countries.
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Affiliation(s)
| | - Gbolahanmi Akinola Oladosu
- Department of Veterinary Medicine, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Nigeria
| | - Oladipo Olufemi Omotosho
- Department of Veterinary Medicine, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Nigeria
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