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Gogoi B, Acharjee SA, Bharali P, Sorhie V, Walling B, Alemtoshi. A critical review on the ecotoxicity of heavy metal on multispecies in global context: A bibliometric analysis. ENVIRONMENTAL RESEARCH 2024; 248:118280. [PMID: 38272294 DOI: 10.1016/j.envres.2024.118280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 01/18/2024] [Accepted: 01/19/2024] [Indexed: 01/27/2024]
Abstract
Heavy metals (HMs) have become a significant concern in the current era, with deleterious effects on diverse living organisms when exposed beyond threshold concentrations. Both nature and human beings have been constantly casting out HMs into environmental matrices through various activities. Innumerable cases of threatened diseases such as cancer, respiratory ailments, reproductive defects, skin diseases, and several others have been a cause of significant concern for humans as the number of instances has been increasing with each decade. HMs migrates via several pathways to infiltrate biological organisms and amass within them. Even though numerous treatment approaches are available for remediating HM pollution, however, they are expensive, along with other setbacks. Due to such constraints, combating HM contamination requires environmentally conscious strategies like bioremediation, which employs an array of biological systems to remove HMs from the environment. Nonetheless, to address the current global HM pollution situation, it is critical to comprehend not only how these hazardous HMs cause toxicity in various living organisms but also the knowledge gaps that currently exist concerning the subject of HM ecotoxicity. In the present investigation, data was extracted from Google Scholar using software program called Harzing's Publish or Perish. The collected information has been subsequently displayed as a network file using the VOSViewer software tool. Thus, the current review presents a significant insight with the inclusion of a readily accessible bibliometric analysis to comprehend the present status of HMs research, global research trends, existing knowledge discrepancies, and research challenges. Further, it also provides an in-depth review of HMs ecotoxicity, with a focus on arsenic (As), cadmium (Cd), and lead (Pb). Thus, as indicated by the bibliometric study, the present review will assist future investigators studying HMs ecotoxicity by providing baseline data concerning a wide range of living organisms and by addressing research gaps.
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Affiliation(s)
- Bhagyudoy Gogoi
- Applied Environmental Microbial Biotechnology Laboratory, Department of Environmental Science, Nagaland University, HQ: Lumami, Zunheboto-798627, Nagaland, India
| | - Shiva Aley Acharjee
- Applied Environmental Microbial Biotechnology Laboratory, Department of Environmental Science, Nagaland University, HQ: Lumami, Zunheboto-798627, Nagaland, India
| | - Pranjal Bharali
- Applied Environmental Microbial Biotechnology Laboratory, Department of Environmental Science, Nagaland University, HQ: Lumami, Zunheboto-798627, Nagaland, India.
| | - Viphrezolie Sorhie
- Applied Environmental Microbial Biotechnology Laboratory, Department of Environmental Science, Nagaland University, HQ: Lumami, Zunheboto-798627, Nagaland, India
| | - Bendangtula Walling
- Applied Environmental Microbial Biotechnology Laboratory, Department of Environmental Science, Nagaland University, HQ: Lumami, Zunheboto-798627, Nagaland, India
| | - Alemtoshi
- Applied Environmental Microbial Biotechnology Laboratory, Department of Environmental Science, Nagaland University, HQ: Lumami, Zunheboto-798627, Nagaland, India
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Ghafarifarsani H, Hedayati SA, Yousefi M, Hoseinifar SH, Yarahmadi P, Mahmoudi SS, Van Doan H. Toxic and bioaccumulative effects of zinc nanoparticle exposure to goldfish, Carassius auratus (Linnaeus, 1758). Drug Chem Toxicol 2023; 46:984-994. [PMID: 36120942 DOI: 10.1080/01480545.2022.2115509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 08/04/2022] [Accepted: 08/11/2022] [Indexed: 11/03/2022]
Abstract
The widespread use of produced metal oxide nanoparticles (NPs) has increased major concerns about their impact on human as well as aquatic animal health. The present study shows that exposure to different concentrations of zinc oxide (ZnO) NPs led to high accumulations of Zn ions in the metabolic organs of fish (liver and gills), resulting in severe oxidative stress in Carassius auratus. The goldfish (C. auratus) was chosen as an aquatic species for the evaluation of the potential toxicity of aqueous ZnO-NPs (Treatments of hemoglobin and neutrophils (0, 0.5, 1, and 1.5 mg L- 1) following 14 days of exposure. A range of histological and hematological factors were examined. Exposure to the NPs produced significant reduction of red blood cell and white blood cell counts, hematocrit) were found to produce no significant differences in lymphocyte, monocyte, and eosinophil counts; as well as the mean corpuscular hemoglobin concentrations index (P > 0.05). Moreover, the results revealed significant alterations in serum biochemical parameters, hepatic enzyme levels, and immune and antioxidant responses; except for total protein and superoxide dismutase (SOD) of C. auratus exposed to ZnO-NPs, particularly at the 1 and 1.5 mg L- 1 concentrations. Fish exposed to 1 and 1.5 mg L-1 ZnO-NPs displayed a significant reduction in alternative complement pathway activity, lysozyme, and total protein contents of mucus compared to those in the control group. The results showed that hepatic SOD and catalase, and gill catalase activity were significantly decreased, and their malondialdehyde levels increased at 1 and 1.5 mg L-1 ZnO-NPs compared to the control group (P < 0.05). Significant accumulations of ZnO-NPs were observed in the liver, kidney, and gill tissues of fish leading to severe histopathological alterations in these organs. These results suggest that water-borne ZnO-NPs can easily accumulate in metabolic organs and lead to oxidative stress and destructive effects on the physiological features of C. auratus.
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Affiliation(s)
- Hamed Ghafarifarsani
- Department of Fisheries, Faculty of Natural Resources, Urmia University, Urmia, Iran
| | - Seyed Aliakbar Hedayati
- Department of Fisheries, Faculty of Fisheries and Environmental Sciences, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
| | - Morteza Yousefi
- Department of Veterinary Medicine, Peoples' Friendship University of Russia (RUDN University), Moscow, Russian Federation
| | - Seyed Hossein Hoseinifar
- Department of Fisheries, Faculty of Fisheries and Environmental Sciences, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
| | - Peyman Yarahmadi
- Department of Aquatic Animal Health, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | | | - Hien Van Doan
- Department of Animal and Aquatic Sciences, Faculty of Agriculture, Chiang Mai University, Chiang Mai, Thailand
- Science and Technology Research Institute, Chiang Mai University, Chiang Mai, Thailand
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Jamil Emon F, Rohani MF, Sumaiya N, Tuj Jannat MF, Akter Y, Shahjahan M, Abdul Kari Z, Tahiluddin AB, Goh KW. Bioaccumulation and Bioremediation of Heavy Metals in Fishes-A Review. TOXICS 2023; 11:510. [PMID: 37368610 DOI: 10.3390/toxics11060510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 03/06/2023] [Accepted: 03/10/2023] [Indexed: 06/29/2023]
Abstract
Heavy metals, the most potent contaminants of the environment, are discharged into the aquatic ecosystems through the effluents of several industries, resulting in serious aquatic pollution. This type of severe heavy metal contamination in aquaculture systems has attracted great attention throughout the world. These toxic heavy metals are transmitted into the food chain through their bioaccumulation in different tissues of aquatic species and have aroused serious public health concerns. Heavy metal toxicity negatively affects the growth, reproduction, and physiology of fish, which is threatening the sustainable development of the aquaculture sector. Recently, several techniques, such as adsorption, physio-biochemical, molecular, and phytoremediation mechanisms have been successfully applied to reduce the toxicants in the environment. Microorganisms, especially several bacterial species, play a key role in this bioremediation process. In this context, the present review summarizes the bioaccumulation of different heavy metals into fishes, their toxic effects, and possible bioremediation techniques to protect the fishes from heavy metal contamination. Additionally, this paper discusses existing strategies to bioremediate heavy metals from aquatic ecosystems and the scope of genetic and molecular approaches for the effective bioremediation of heavy metals.
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Affiliation(s)
- Farhan Jamil Emon
- Laboratory of Fish Ecophysiology, Department of Fisheries Management, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
| | - Md Fazle Rohani
- Department of Aquaculture, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
| | - Nusrat Sumaiya
- Laboratory of Fish Ecophysiology, Department of Fisheries Management, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
| | - Mst Fatema Tuj Jannat
- Laboratory of Fish Ecophysiology, Department of Fisheries Management, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
| | - Yeasmin Akter
- Department of Applied Chemistry and Chemical Engineering, Noakhali Science and Technology University, Noakhali 3814, Bangladesh
| | - Md Shahjahan
- Laboratory of Fish Ecophysiology, Department of Fisheries Management, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
| | - Zulhisyam Abdul Kari
- Department of Agricultural Sciences, Faculty of Agro-Based Industry, Universiti Malaysia Kelantan, Jeli Campus, Jeli 17600, Malaysia
- Advanced Livestock and Aquaculture Research Group, Faculty of Agro-Based Industry, Universiti Malaysia Kelantan, Jeli Campus, Jeli 17600, Malaysia
| | - Albaris B Tahiluddin
- College of Fisheries, Mindanao State University-Tawi-Tawi College of Technology and Oceanography, Sanga-Sanga, Bongao 7500, Philippines
| | - Khang Wen Goh
- Faculty of Data Science and Information Technology, INTI International University, Nilai 71800, Malaysia
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Sarkar DJ, Behera BK, Parida PK, Aralappanavar VK, Mondal S, Dei J, Das BK, Mukherjee S, Pal S, Weerathunge P, Ramanathan R, Bansal V. Aptamer-based NanoBioSensors for seafood safety. Biosens Bioelectron 2023; 219:114771. [PMID: 36274429 DOI: 10.1016/j.bios.2022.114771] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 09/16/2022] [Accepted: 09/28/2022] [Indexed: 11/06/2022]
Abstract
Chemical and biological contaminants are of primary concern in ensuring seafood safety. Rapid detection of such contaminants is needed to keep us safe from being affected. For over three decades, immunoassay (IA) technology has been used for the detection of contaminants in seafood products. However, limitations inherent to antibody generation against small molecular targets that cannot elicit an immune response, along with the instability of antibodies under ambient conditions greatly limit their wider application for developing robust detection and monitoring tools, particularly for non-biomedical applications. As an alternative, aptamer-based biosensors (aptasensors) have emerged as a powerful yet robust analytical tool for the detection of a wide range of analytes. Due to the high specificity of aptamers in recognising targets ranging from small molecules to large proteins and even whole cells, these have been suggested to be viable molecular recognition elements (MREs) in the development of new diagnostic and biosensing tools for detecting a wide range of contaminants including heavy metals, antibiotics, pesticides, pathogens and biotoxins. In this review, we discuss the recent progress made in the field of aptasensors for detection of contaminants in seafood products with a view of effectively managing their potential human health hazards. A critical outlook is also provided to facilitate translation of aptasensors from academic laboratories to the mainstream seafood industry and consumer applications.
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Affiliation(s)
- Dhruba Jyoti Sarkar
- Aquatic Environmental Biotechnology and Nanotechnology Division, ICAR-Central Inland Fisheries Research Institute, Barrackpore, 700120, West Bengal, India.
| | - Bijay Kumar Behera
- Aquatic Environmental Biotechnology and Nanotechnology Division, ICAR-Central Inland Fisheries Research Institute, Barrackpore, 700120, West Bengal, India.
| | - Pranaya Kumar Parida
- Aquatic Environmental Biotechnology and Nanotechnology Division, ICAR-Central Inland Fisheries Research Institute, Barrackpore, 700120, West Bengal, India
| | - Vijay Kumar Aralappanavar
- Aquatic Environmental Biotechnology and Nanotechnology Division, ICAR-Central Inland Fisheries Research Institute, Barrackpore, 700120, West Bengal, India
| | - Shirsak Mondal
- Aquatic Environmental Biotechnology and Nanotechnology Division, ICAR-Central Inland Fisheries Research Institute, Barrackpore, 700120, West Bengal, India
| | - Jyotsna Dei
- Aquatic Environmental Biotechnology and Nanotechnology Division, ICAR-Central Inland Fisheries Research Institute, Barrackpore, 700120, West Bengal, India
| | - Basanta Kumar Das
- Aquatic Environmental Biotechnology and Nanotechnology Division, ICAR-Central Inland Fisheries Research Institute, Barrackpore, 700120, West Bengal, India
| | - Subhankar Mukherjee
- Centre for Development of Advance Computing, Kolkata, 700091, West Bengal, India
| | - Souvik Pal
- Centre for Development of Advance Computing, Kolkata, 700091, West Bengal, India
| | - Pabudi Weerathunge
- Sir Ian Potter NanoBioSensing Facility, NanoBiotechnology Research Laboratory, School of Science, RMIT University, Melbourne, VIC, 3000, Australia
| | - Rajesh Ramanathan
- Sir Ian Potter NanoBioSensing Facility, NanoBiotechnology Research Laboratory, School of Science, RMIT University, Melbourne, VIC, 3000, Australia
| | - Vipul Bansal
- Sir Ian Potter NanoBioSensing Facility, NanoBiotechnology Research Laboratory, School of Science, RMIT University, Melbourne, VIC, 3000, Australia.
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Taheri M, Mahmudy Gharaie MH, Mehrzad J, Stone M, Afshari R. Profiles and potential health risks of heavy metals in polluted soils in NE-Iran. TOXIN REV 2022. [DOI: 10.1080/15569543.2021.1906706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Masumeh Taheri
- Department of Geology, Faculty of Sciences, Ferdowsi University of Mashhad, Mashhad, Iran
| | | | - Jalil Mehrzad
- Department of Microbiology and Immunology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Michael Stone
- Department of Geography and Environmental Management, Faculty of Environment, University of Waterloo, Waterloo, ON, Canada
| | - Reza Afshari
- School of Population and Public Health, Faculty of Medicine, The University of British Columbia, Vancouver, Canada
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Abu Shnaf ASM, Abd El-Aziz SH, Ata AM. Cyto-histopathological and protein polymorphism alterations in five populations of Nile tilapia (Oreochromis niloticus) as biomonitor for water heavy metal pollution. JOURNAL OF FISH BIOLOGY 2021; 99:999-1009. [PMID: 34043238 DOI: 10.1111/jfb.14798] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 04/24/2021] [Accepted: 05/17/2021] [Indexed: 06/12/2023]
Abstract
Cytological, histopathological and sodium dodecyl sulphate polyacrylamide gel analyses were carried out on five populations of common Nile tilapia fish (Oreochromis niloticus) occurring in five sites - River Nile (reference site), Bahr Yusef canal, Ibrahimia canal, Irrigation drain and El Moheet drain of El Minia Province, Egypt - to evaluate the usability of Nile tilapia as a biomonitor for water heavy metal contaminants. Water surface samples were collected from the five sites, and lead (Pb) concentration was shown to surpass the limits defined by WHO. Ni and Cd levels were shown to be elevated in Ibrahimia canal samples. Moreover, the concentration of heavy metals in fish muscles collected from Bahr Yusef canal and El Moheet drain was the highest in comparison with those of the other water sites. Cytological examinations of blood smears showed not only a significant percentage of micronuclei in Irrigation drain population but also a significant percentage of binucleated cells in Ibrahimia canal and El Moheet drain populations. In addition, pathological alteration was observed in blood cells, especially in samples collected from Irrigation drain and El Moheet drain. Histopathological changes were strongly observed in the liver and the kidneys of El Moheet and Irrigation drain population. Moreover, total protein band pattern profiles showed extra bands in both Ibrahimia canal and Irrigation drain more than that recorded for the River Nile population. In conclusion, cyto-histopathological and total protein band pattern results confirmed that O. niloticus responds sensitively to the excess of heavy metals present in the water.
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Affiliation(s)
- Anwaar S M Abu Shnaf
- Department of Zoology and Entomology, Faculty of Science, Minia University, Minia, Egypt
| | - Shaban H Abd El-Aziz
- Department of Zoology and Entomology, Faculty of Science, Minia University, Minia, Egypt
| | - Abdeltawab M Ata
- Department of Genetics, Faculty of Agriculture, Minia University, Minia, Egypt
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Choudhury C, Mazumder R, Kumar R, Dhar B, Sengupta M. Cadmium induced oxystress alters Nrf2-Keap1 signaling and triggers apoptosis in piscine head kidney macrophages. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2021; 231:105739. [PMID: 33434705 DOI: 10.1016/j.aquatox.2020.105739] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 12/22/2020] [Accepted: 12/28/2020] [Indexed: 06/12/2023]
Abstract
Cadmium (Cd) with no known functional role in any life-form has myriad of harmful effects. The present study was designed to elucidate the mechanism of Cd-induced oxystress generation and its impact on antioxidant and apoptosis signaling pathways in head kidney macrophage (HKM) of Channa punctatus Bloch. Fish were sampled and acclimatized with one group treated with cadmium chloride (CdCl2) (1.96 mg/L) and another as untreated control group, both kept under observation for 7 days. Exposure to Cd caused ultrastructural changes along with reduced head kidney somatic index (HKSI). Significantly increased levels of reactive oxygen species (ROS), respiratory burst activity, lipid peroxidation, DNA fragmentation and superoxide dismutase were found in the HKM from the treated group as compared to control. In contrast, antioxidant enzymes like catalase and reduced glutathione activity decreased in the Cd exposed group. The suppressed antioxidant activity was further confirmed and corroborated from the altered expression of Kelch-like ECH-associated protein 1 (Keap1) and nuclear factor erythroid 2-related factor 2 (Nrf2) genes, the major player of antioxidant pathway. Cd induced alteration in Nrf2-Keap1 signaling pathway was also validated by the diminished levels of Nrf2 dependent expression of protein like heme oxygenase-1 (HO-1). The flow cytometry analysis supported the event of apoptosis in Cd exposed group as compared to control, which was further confirmed by the upregulated expression of caspase-3, caspase-8, caspase-9, TNF-α and p53 genes from the real-time gene expression study. In addition, altered protein level of cytochrome C validates the incidence of apoptosis. Altogether, our results demonstrate that exposure to Cd caused oxidative stress in HKM of Channa punctatus Bloch. by compromising the antioxidant enzyme activities via the down regulation of expression of genes related to antioxidant signaling pathway besides encouraging apoptosis via both mitochondrial and death receptor pathway.
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Affiliation(s)
- Chohelee Choudhury
- Department of Biotechnology, Assam University, Silchar, Assam, 788011, India
| | - Ritwik Mazumder
- Department of Economics, Assam University, Silchar, Assam, 788011, India
| | - Rajeev Kumar
- Dr. S. Krishnamurthi Centre for Research & Education in Cancer (SKCREC) Cachar Cancer Hospital, Silchar, Assam, 788011, India
| | - Bishal Dhar
- S. N. Bose Innovation Centre, University of Kalyani, Kalyani, West Bengal, 741235, India
| | - Mahuya Sengupta
- Department of Biotechnology, Assam University, Silchar, Assam, 788011, India.
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Martyniuk MAC, Couture P, Tran L, Beaupré L, Urien N, Power M. A seasonal comparison of trace metal concentrations in the tissues of Arctic charr (Salvelinus alpinus) in Northern Québec, Canada. ECOTOXICOLOGY (LONDON, ENGLAND) 2020; 29:1327-1346. [PMID: 32794028 DOI: 10.1007/s10646-020-02248-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 06/30/2020] [Indexed: 06/11/2023]
Abstract
Ecotoxicological research detailing trace metal contamination and seasonal variation in the tissues of northern fishes such as Arctic charr (Salvelinus alpinus) has been poorly represented in the literature beyond examination of mercury. In an effort to address this, anadromous Arctic charr were collected from the Deception River watershed in the late summer and post-winter season, before quantifying seasonal and organotropic variations in dorsal muscle and liver concentrations of arsenic, cadmium, chromium, copper, nickel, lead, and zinc. Potential linkages with biological variables (fork length, age, and somatic condition) and indicators of feeding behavior (δ13C and δ15N) were also assessed. Trace metal organotropism favouring elevation in liver tissue concentrations was exhibited by cadmium, copper, nickel and zinc, while arsenic, chromium and lead exhibited no significant organotropic variation. Seasonal differences in concentrations were metal and tissue dependent, but generally increased in tissues collected from post-winter sampled Arctic charr. Significant correlations with biological and trophic descriptors were also determined to be element and tissue dependent. These parameters, in addition to season, were incorporated into multi-predictor variable models, where variations in trace metal concentration data were often best explained when season, somatic condition, and trophic descriptors were included. These variables were also of greatest relative importance across all considered trace metals and tissue types. These findings suggest that seasonally linked processes have the greatest influence on trace metal concentrations in anadromous Arctic charr. Future metal-related research on Arctic charr and other northern fish species should further consider these variables when evaluating elemental accumulation.
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Affiliation(s)
- Mackenzie Anne Clifford Martyniuk
- Institut National de la Recherche Scientifique-Centre Eau, Terre, Environnement, 490 Rue de la Couronne, Québec, QC, G1K 9A9, Canada.
| | - Patrice Couture
- Institut National de la Recherche Scientifique-Centre Eau, Terre, Environnement, 490 Rue de la Couronne, Québec, QC, G1K 9A9, Canada
| | - Lilian Tran
- Nunavik Research Centre, P.O. Box 179, Kuujjuaq, Québec, QC, J0M 1C0, Canada
| | - Laurie Beaupré
- Makivk Corporation, 1111 Boulevard Dr. Frederik-Philips, Saint-Laurent, Québec, QC, H4M 2x6, Canada
| | - Nastassia Urien
- Institut National de la Recherche Scientifique-Centre Eau, Terre, Environnement, 490 Rue de la Couronne, Québec, QC, G1K 9A9, Canada
| | - Michael Power
- University of Waterloo, 200 University Avenue West, Waterloo, ON, N2L 3G1, Canada
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Islam MM, Takeyama N. Inorganic arsenic administration suppresses human neutrophil function in vitro. Hum Exp Toxicol 2020; 40:725-734. [PMID: 33063558 DOI: 10.1177/0960327120966040] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Arsenic, a major environmental toxicant and pollutant, is a global public health concern. Among its many adverse effects, arsenic is immunotoxic, but its effects on human neutrophil functions are not yet well-defined. In this study, we aimed to evaluate the in vitro effects of acute low-dose NaAsO2 exposure on human polymorphonuclear neutrophils (PMNs) for 12 h on the following innate defense mechanisms: formation of neutrophil extracellular traps (NETs), production of reactive oxygen species (ROS), and phagocytosis. Phorbol myristate acetate (PMA) was added to induce NETs formation, which was quantified by measuring cell-free extracellular DNA (cf-DNA), myeloperoxidase-conjugated (MPO)-DNA and neutrophil elastase-conjugated (NE)-DNA, and confirmed by immunofluorescence labeling and imaging. Extracellular bactericidal activity by NETs was evaluated by co-culturing Escherichia coli and PMNs in the presence of a phagocytic inhibitor. Levels of NETs in the culture medium after PMA stimulation was significantly lower in PMNs pre-exposed to arsenic than those not exposed to arsenic. Immunofluorescence staining and extracellular bactericidal activity by NETs revealed similar results. Phagocytosis and ROS production by PMNs were also significantly reduced by arsenic pre-exposure. Together, our findings provide new insights in arsenic immunotoxicity and suggest how it increases susceptibility to infectious diseases in humans.
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Affiliation(s)
- Md Monirul Islam
- Department of Emergency and Critical Care Medicine, 12703Aichi Medical University, Nagakute, Aichi, Japan
| | - Naoshi Takeyama
- Department of Emergency and Critical Care Medicine, 12703Aichi Medical University, Nagakute, Aichi, Japan
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Yan N, Xu G, Zhang C, Liu X, Li X, Sun L, Wang D, Duan X, Li B. Chronic arsenic exposure induces the time-dependent modulation of inflammation and immunosuppression in spleen. Cell Biosci 2020; 10:91. [PMID: 32760496 PMCID: PMC7391604 DOI: 10.1186/s13578-020-00448-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Accepted: 06/19/2020] [Indexed: 12/19/2022] Open
Abstract
Background Arsenic exposure has become a matter of worldwide concern, which is associated with immune-related diseases. However, little is known about its effect on inflammatory immune-related homeostasis. The purpose of our study was to understand the potential tuning of above responses exerted by chronic arsenic exposure. Methods Kunming mice were treated with 25 and 50 mg/L sodium arsenite for 1, 3 and 12 months via drinking water. At different endpoints of arsenic exposure, all animals and the whole spleen of the mice were weighed. The total arsenic levels of spleen were determined by the HPLC-HG-AFS method. Splenic NF-κB, MAPK and NRF2 protein levels by treatment of 25 mg/L NaAsO2 for 1, 3 and 12 months and 25 mg/L and 50 mg/L NaAsO2 for 12 months were assessed by western blot. Total RNA of spleen was isolated and relative mRNA levels of Foxp3, Il-10, Tnf-α, Il-6, Ifn-γ, Il-1β and Il-12 were measured by real-time PCR. Results Our results shown that NF-κB were continuously activated with treatment of 25 mg/L arsenic from 1, 3 to 12 months and 50 mg/L arsenic for 12 months. The transcription factor Foxp3 increased at 1 month but decreased at 3 and 12 months no matter 25 or 50 mg/L arsenic exposure. However, cytokine Il-10 always showed increased trend in mice treated with 25 or 50 mg/L arsenic for 1, 3 and 12 months. The transcriptional profiles of Tnf-α, Il-1β, Il-6, Ifn-γ and Il-12 revealed transient elevation at 1 and 3 months but shown significant decrease at 12 months on the whole. In addition, the sustained activation of inflammatory MAPK and anti-oxidative Nrf2 signaling pathways were observed in mice exposed to arsenic for 1, 3 and 12 months. Conclusion In summary, our experiment in vivo suggested chronic arsenic exposure induces the time-dependent modulation of the inflammation and immunosuppression in spleen, which may be related to the activation of Tregs induced by MAPK/NF-κB as well as the increased transcription level of Foxp3 and Il-10.
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Affiliation(s)
- Nan Yan
- Environment and Non-Communicable Disease Research Center, Key Laboratory of Arsenic-Related Biological Effects and Prevention and Treatment in Liaoning Province, School of Public Health, China Medical University, No. 77 Puhe Road, Shenyang North New Area, Shenyang, 110122 Liaoning People's Republic of China
| | - Guowei Xu
- Environment and Non-Communicable Disease Research Center, Key Laboratory of Arsenic-Related Biological Effects and Prevention and Treatment in Liaoning Province, School of Public Health, China Medical University, No. 77 Puhe Road, Shenyang North New Area, Shenyang, 110122 Liaoning People's Republic of China
| | - Chenchen Zhang
- Environment and Non-Communicable Disease Research Center, Key Laboratory of Arsenic-Related Biological Effects and Prevention and Treatment in Liaoning Province, School of Public Health, China Medical University, No. 77 Puhe Road, Shenyang North New Area, Shenyang, 110122 Liaoning People's Republic of China
| | - Xuping Liu
- Environment and Non-Communicable Disease Research Center, Key Laboratory of Arsenic-Related Biological Effects and Prevention and Treatment in Liaoning Province, School of Public Health, China Medical University, No. 77 Puhe Road, Shenyang North New Area, Shenyang, 110122 Liaoning People's Republic of China
| | - Xin Li
- Environment and Non-Communicable Disease Research Center, Key Laboratory of Arsenic-Related Biological Effects and Prevention and Treatment in Liaoning Province, School of Public Health, China Medical University, No. 77 Puhe Road, Shenyang North New Area, Shenyang, 110122 Liaoning People's Republic of China
| | - Lin Sun
- Environment and Non-Communicable Disease Research Center, Key Laboratory of Arsenic-Related Biological Effects and Prevention and Treatment in Liaoning Province, School of Public Health, China Medical University, No. 77 Puhe Road, Shenyang North New Area, Shenyang, 110122 Liaoning People's Republic of China
| | - Da Wang
- Environment and Non-Communicable Disease Research Center, Key Laboratory of Arsenic-Related Biological Effects and Prevention and Treatment in Liaoning Province, School of Public Health, China Medical University, No. 77 Puhe Road, Shenyang North New Area, Shenyang, 110122 Liaoning People's Republic of China
| | - Xiaoxu Duan
- Department of Toxicology, School of Public Health, Shenyang Medical College, Shenyang, 110034 Liaoning China
| | - Bing Li
- Environment and Non-Communicable Disease Research Center, Key Laboratory of Arsenic-Related Biological Effects and Prevention and Treatment in Liaoning Province, School of Public Health, China Medical University, No. 77 Puhe Road, Shenyang North New Area, Shenyang, 110122 Liaoning People's Republic of China
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da Mata Pavione P, da Costa KG, Perônico C, McMaster ME, Parrott JL, Hewitt LM, Munkittrick KR, Barreto FCC, Basilo TH, Gomes MP, Reis Filho RW, Furley TH. Development of environmental effects monitoring protocol in Brazil: a fish guide study of three river estuaries. ENVIRONMENTAL MONITORING AND ASSESSMENT 2019; 191:658. [PMID: 31630267 DOI: 10.1007/s10661-019-7860-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Accepted: 10/01/2019] [Indexed: 06/10/2023]
Abstract
In Brazil, there are no unified and effective environmental monitoring models for bodies of water. Thus, several methodologies are used that result in information that is often difficult to compare, especially for stakeholders involved in regional water management. Studies in some countries such as Australia, Chile, the USA, and Sweden use the monitoring model implemented in Canada that was developed in the early 1990s. This model was designed to evaluate whether the current environmental regulations are sufficiently protective for pulp and paper effluents and for metal mining effluents. In this study, the Canadian Environmental Effects Monitoring methodologies were applied to three different Brazilian river basins, with the goal of constructing a framework for monitoring environmental effects. Pilot studies were carried out in the estuarine regions of the Benevente, Jucu, and Santa Maria da Vitória river basins, which are important rivers in the state of Espírito Santo. Evaluations included fish health, bioaccumulation studies, benthic invertebrate survey, and physical-chemical analyses of water and sediment. The quality of the environments was evaluated by means of seasonal samplings and comparisons between discharge, upstream, and downstream areas. This study made it possible to identify appropriate fish species to be used in environmental effects monitoring and the environmental quality of the rivers themselves as well as knowledge and policy gaps to implement such monitoring programs in Brazil. The study raises questions about the adequacy of Brazilian environmental legislation concerning tidal rivers.
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Affiliation(s)
- Priscylla da Mata Pavione
- Instituto Nacional de Pesquisas da Amazônia, Rua Andre Araujo, 2936, Petrópolis Manaus, BR, 69067-375, Brazil
| | | | - Clayton Perônico
- Instituto Federal do Espirito Santo, Rua Augusto Costa de Oliveira, 660, Praia Doce, Piúma, Espirito Santo, 29285-000, Brazil
| | - Mark E McMaster
- Environment and Climate Change Canada, 867 Lakeshore Road, Burlington, ON, L7S 1A1, Canada
| | - Joanne L Parrott
- Environment and Climate Change Canada, 867 Lakeshore Road, Burlington, ON, L7S 1A1, Canada
| | - L Mark Hewitt
- Environment and Climate Change Canada, 867 Lakeshore Road, Burlington, ON, L7S 1A1, Canada
| | - Kelly R Munkittrick
- Department of Biology, Wilfrid Laurier University, 75 University Ave W, Waterloo, ON, N2L 3C5, Canada
| | | | - Thiago Hollanda Basilo
- Instituto Federal do Espirito Santo, Rua Augusto Costa de Oliveira, 660, Praia Doce, Piúma, Espirito Santo, 29285-000, Brazil
| | - Marcelo Paes Gomes
- Department of Earth, Ocean & Ecological Sciences, School of Environmental Sciences, University of Liverpool, Liverpool, L69 3GP, UK
| | - Ricardo Wagner Reis Filho
- APLYSIA Environmental Consulting, Rua Julia Lacourt Penna, 335, Jardim Camburi, Vitória, Espírito Santo, 29090-210, Brazil.
| | - Tatiana Heid Furley
- Instituto Aplysia, Rua Julia Lacourt Penna, 335, Jardim Camburi, Vitória, Espírito Santo, 29090-210, Brazil
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12
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Sayed AH, Kitamura D, Oda S, Kashiwada S, Mitani H. Cytotoxic and genotoxic effects of arsenic on erythrocytes of Oryzias latipes: Bioremediation using Spirulina platensis. J Trace Elem Med Biol 2019; 55:82-88. [PMID: 31345371 DOI: 10.1016/j.jtemb.2019.06.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 05/28/2019] [Accepted: 06/13/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND Exposure to the environmental pollutants poses a serious threat to aquatic organism. The arsenic exposure in fish increases the risk of developing serious alterations from embryo to adult. OBJECTIVES The present investigation was done to study the toxic effects of heavy metal arsenic [As(III)] on medaka (Oryzias latipes). Morphological alterations, apoptosis, nuclear abnormalities, and genotoxic biomarkers in erythrocytes were used to determine the stress caused by arsenic (As) exposure. METHODS Medaka was exposed to As for 15 days at two toxic sublethal concentrations (7 ppm and 10 ppm) in combination with Spirulina platensis (SP) treatment as antioxidant algae at 200 mg/L. RESULTS Results were consistent with a previous study results on tilapia. Exposure of medaka to As resulted in a dose-dependent increase in most the biomarkers used in the current study. Fish exposed to10 ppm As showed highest level of DNA damage. For the first time to our knowledge, using SP to counter the As toxicity in medaka, DNA damage restored to control levels. CONCLUSION Accordingly, those results suggests that SP can protect medaka in aquaculture against As-induced damage by its ability as reactive oxygen species (ROS) reducer, antioxidant role, and DNA damage scavenger.
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Affiliation(s)
- Alaa H Sayed
- Zoology department, Faculty of Science, Assiut University, 71516 Assiut, Egypt.
| | - Daiki Kitamura
- Graduate School of Life Sciences, Toyo University, 1-1-1 Izumino, Itakura, Gunma 374-0193, Japan
| | - Shoji Oda
- Department of Integrated Biosciences, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Chiba 277-8562, Japan
| | - Shosaku Kashiwada
- Graduate School of Life Sciences, Toyo University, 1-1-1 Izumino, Itakura, Gunma 374-0193, Japan
| | - Hiroshi Mitani
- Department of Integrated Biosciences, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Chiba 277-8562, Japan
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Ghadersarbazi Z, Ghiasi F, Ghorbani F, Johari SA. Toxicity assessment of arsenic on common carp (Cyprinus carpio) and development of natural sorbents to reduce the bioconcentration by RSM methodology. CHEMOSPHERE 2019; 224:247-255. [PMID: 30825850 DOI: 10.1016/j.chemosphere.2019.02.146] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Revised: 02/07/2019] [Accepted: 02/22/2019] [Indexed: 06/09/2023]
Abstract
The objective of the present study was firstly acute toxicity bioassay of arsenic on common carp (Cyprinus carpio) and then the development of natural sorbent beds (clinoptilolite and pumice) to reduce bioconcentration of arsenic in muscle tissue were considered in comparative evaluation. In this regard, the acute toxicity of arsenic on juvenile fish was assessed according to the OECD guideline (No. 203). Moreover, the efficacy of clinoptilolite and pumice as natural sorbents was assessed to reduce bioconcentration of arsenic in the fish muscle tissue during a 21 day by response surface methodology (RSM) under central composite design (CCD). The most important point of this study was to evaluate the interactions between independent variables (clinoptilolite and pumice as sorbents and arsenic as pollutant) and arsenic bioconcentration in fish muscle tissue as a dependent variable (response). In these regards, a total of 24 sets of experiments (12 sets for clinoptilolite and pumice separately) were designed by the software to achieve the best adsorption conditions. According to the arsenic toxicity test, results as estimated by Probit method, the 96 h LC50 was 9.48 ± 1.01 mg/L. Analysis of variance (ANOVA) which was applied to modeling and optimization of response revealed that the predicted values were in relatively good agreement with the experimental data. Additionally, the obtained value for model desirability by clinoptilolite and pumice were 0.932 and 0.958, respectively. Overall, the obtained results indicate that both adsorbents reduced the bioconcentration of As (V) in the muscle tissue of common carp, but clinoptilolite was more effective.
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Affiliation(s)
- Zhila Ghadersarbazi
- Department of Fisheries, Faculty of Natural Resources, University of Kurdistan, Sanandaj, Iran
| | - Farzad Ghiasi
- Department of Fisheries, Faculty of Natural Resources, University of Kurdistan, Sanandaj, Iran.
| | - Farshid Ghorbani
- Department of Environment, Faculty of Natural Resources, University of Kurdistan, Sanandaj, Iran
| | - Seyed Ali Johari
- Department of Fisheries, Faculty of Natural Resources, University of Kurdistan, Sanandaj, Iran
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14
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AnvariFar H, Amirkolaie AK, Jalali AM, Miandare HK, Sayed AH, Üçüncü Sİ, Ouraji H, Ceci M, Romano N. Environmental pollution and toxic substances: Cellular apoptosis as a key parameter in a sensible model like fish. AQUATIC TOXICOLOGY 2018; 204:144-159. [PMID: 30273782 DOI: 10.1016/j.aquatox.2018.09.010] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2018] [Revised: 08/06/2018] [Accepted: 09/17/2018] [Indexed: 02/07/2023]
Abstract
The industrial wastes, sewage effluents, agricultural run-off and decomposition of biological waste may cause high environmental concentration of chemicals that can interfere with the cell cycle activating the programmed process of cells death (apoptosis). In order to provide a detailed understanding of environmental pollutants-induced apoptosis, here we reviewed the current knowledge on the interactions of environmental chemicals and programmed cell death. Metals (aluminum, arsenic, cadmium, chromium, cobalt, zinc, copper, mercury and silver) as well as other chemicals including bleached kraft pulp mill effluent (BKME), persistent organic pollutants (POPs), and pesticides (organo-phosphated, organo-chlorinated, carbamates, phyretroids and biopesticides) were evaluated in relation to apoptotic pathways, heat shock proteins and metallothioneins. Although research performed over the past decades has improved our understanding of processes involved in apoptosis in fish, yet there is lack of knowledge on associations between environmental pollutants and apoptosis. Thus, this review could be useful tool to study the cytotoxic/apoptotic effects of different pollutants in fish species.
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Affiliation(s)
- Hossein AnvariFar
- Department of Fisheries, Faculty of Animal Science and Fisheries, University of Agriculture and Natural Resources, P.O. Box 578, Sari, Iran; University of Applied Science and Technology, Provincial Unit, P.O. Box: 4916694338, Golestan, Iran
| | - A K Amirkolaie
- Department of Fisheries, Faculty of Animal Science and Fisheries, University of Agriculture and Natural Resources, P.O. Box 578, Sari, Iran
| | - Ali M Jalali
- Faculty of Fisheries and Environmental Sciences, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, 49138-15739, Iran; Sturgeon Affairs Management, Gorgan, Golestan, Iran; Center for Integrative Ecology, School of Life and Environmental Sciences, Deakin University, VIC, 3280, Australia
| | - H K Miandare
- Faculty of Fisheries and Environmental Sciences, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, 49138-15739, Iran
| | - Alaa H Sayed
- Department of Zoology, Faculty of Science, Assiut University, 71516 Assiut, Egypt
| | - Sema İşisağ Üçüncü
- Department of Biology, Faculty of Science, Ege University, Bornova, 35100, İzmir, Turkey
| | - Hossein Ouraji
- Department of Fisheries, Faculty of Animal Science and Fisheries, University of Agriculture and Natural Resources, P.O. Box 578, Sari, Iran
| | - Marcello Ceci
- Department Ecological and Biological Sciences, University of Tuscia, Tuscia University, Viterbo, 01100, Italy
| | - Nicla Romano
- Department Ecological and Biological Sciences, University of Tuscia, Tuscia University, Viterbo, 01100, Italy.
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15
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Abstract
Fish can be exposed to multiple stressors at the same time, including natural toxins, environmental pollutants or feed contamination. In this study, we report on the effects of controlled exposure of rainbow trout (Oncorhynchus mykiss) to multiple stressors. In doing so, we test the hypothesis that cyanobacterial biomass and arsenic in feed combine to enhance negative effects on fish, including modulation of antioxidant response. The trout (mean weight 288 ± 59 g) were divided into six experimental groups of 25 fish each (C - control group; B - 3% lyophilised toxic cyanobacterial biomass; As5 - arsenic at 5 mg·kg–1; As50 - arsenic at 50 mg·kg–1; and two combinations of cyanobacterial biomass and arsenic (B+As5 and B+As50). All indicators of oxidative stress were determined using standard methods, showing significant changes. Overall antioxidant capacity (ferric reducing antioxidant power) decreased significantly in the liver, gills and heart after 10-days, while lipid peroxidation (thiobarbituric acid reactive substances) increased in the liver of groups exposed to cyanobacterial biomass, and in the heart of groups exposed to increased concentrations of arsenic and those under combined exposure. Levels of glutathione reductase showed a significant reduction following exposure, especially in the gills and liver. Our results indicate that the antioxidant system plays an important role in the protective response of tissues to stressors, and especially arsenic.
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16
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Akbary P, Sartipi Yarahmadi S, Jahanbakhshi A. Hematological, hepatic enzymes' activity and oxidative stress responses of gray mullet (Mugil cephalus) after sub-acute exposure to copper oxide. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:1800-1808. [PMID: 29101705 DOI: 10.1007/s11356-017-0582-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Accepted: 10/24/2017] [Indexed: 06/07/2023]
Abstract
Given the importance of assessing potential toxicity of heavy metals in valuable species of aquatic animals, the goal of the present research was to assess the sub-acute effects of copper oxide on hematological, enzymological, and oxidative stress responses of gray mullet to measure toxicity of copper oxide pollution in this significant fish. The median lethal concentration (LC50) value of copper oxide to gray mullet was detected at 3.15 ± 0.039 mg/L for 96 h, and 25 and 50% of the 96-h LC50 values were selected as sub-acute concentrations. The fish were exposed to (0.79 and 1.57 mg/L) copper oxide for 21 days. At the end of 21 days, the results showed that hemoglobin (Hb), hematocrit (Hct), red blood cells (RBC) count, MCV, MCH, and MCHC levels were found to be decreased in copper oxide treated fish, whereas white blood cells (WBC) count increased in copper-treated fish. Plasma aspartate aminotransferase (AST), alanine aminotransferase (ALT), and lactate dehydrogenase (LDH) activity increased in treated groups; however, copper oxide in both groups of sub-acute exposure significantly decreased plasma alkaline phosphatase (ALP) activity compared to the control group. Superoxide dismutase (SOD), catalase (CAT), and glutathione (GSH) levels significantly declined in copper oxide-treated fish. These findings indicated the deleterious effects of copper oxide on gray mullet, even at low concentrations, and offered that hematological and hepatic enzyme activity and antioxidants are suitable tools for evaluating heavy metals toxicity.
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Affiliation(s)
- Paria Akbary
- Department of Marine Sciences, Fisheries Group, Chabahar Maritime University, Chabahar, Iran.
| | - Sahar Sartipi Yarahmadi
- MSc of Environmental Department, Tonekabon Branch, Islamic Azad University (IAU), Tonekabon, Iran
| | - Abdolreza Jahanbakhshi
- Department of Fishery, Faculty of Fisheries and Environment, Gorgan University of Agricultural Science and Natural Resources, Gorgan, Iran
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17
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Greani S, Lourkisti R, Berti L, Marchand B, Giannettini J, Santini J, Quilichini Y. Effect of chronic arsenic exposure under environmental conditions on bioaccumulation, oxidative stress, and antioxidant enzymatic defenses in wild trout Salmo trutta (Pisces, Teleostei). ECOTOXICOLOGY (LONDON, ENGLAND) 2017; 26:930-941. [PMID: 28623431 DOI: 10.1007/s10646-017-1822-3] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 05/30/2017] [Indexed: 05/25/2023]
Abstract
The present study evaluates the relation between chronic arsenic (As) exposure in the natural distribution area of wild brown trout (Salmo trutta), oxidative stress and antioxidant enzymatic defenses. Two rivers of the same watershed were evaluated to highlight the correlation between As accumulation and the resulting stress: (i) the Presa River, which has high chronic As levels (2281.66 µg/L) due to past mining activity, and (ii) the Bravona River (control river). This metalloid was measured in main fish tissues (gills, kidney, liver, muscle, gonads and fins) and water. As organotropism in S. trutta was kidney > liver > gill > fin > gonad > muscle. The HepatoSomatic Index (HSI) and somatic condition (CF) were used to compare fish population conditions from both sites. Arsenic can be absorbed by the gills and can induce oxidative stress and disturb antioxidant defenses. The aim of this study was to evaluate oxidative stress response by measuring malondialdehyde (MDA) content, as a marker of lipid peroxidation, and antioxidant enzymatic defenses (Superoxide dismutase (SOD), catalase CAT, glutathione peroxidase (GPx) and glutathione S-transferase (GST)), in the main tissues of control and exposed trout. The highest MDA content was found in the kidney and liver of exposed trout. SOD and CAT activities in exposed livers and kidneys were considerably increased while a significant rise of GPx activity was observed only in the liver. GST activity was found to be significantly induced in the liver of exposed trout. The results demonstrate that arsenic bioaccumulation can induce lipid peroxidation and substantial modifications in antioxidant enzymatic defenses in main wild trout tissues.
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Affiliation(s)
- Samuel Greani
- Laboratoire Parasites et Ecosystèmes méditerranéens, UMR CNRS 6134 SPE, Università di Corsica, F-20250, Corti, Corsica, France
| | - Radia Lourkisti
- Laboratoire de Biochimie et Biologie moléculaire du végétal, UMR CNRS 6134 SPE, Università di Corsica, F-20250, Corti, Corsica, France
| | - Liliane Berti
- Laboratoire de Biochimie et Biologie moléculaire du végétal, UMR CNRS 6134 SPE, Università di Corsica, F-20250, Corti, Corsica, France
| | - Bernard Marchand
- Laboratoire Parasites et Ecosystèmes méditerranéens, UMR CNRS 6134 SPE, Università di Corsica, F-20250, Corti, Corsica, France
| | - Jean Giannettini
- Laboratoire de Biochimie et Biologie moléculaire du végétal, UMR CNRS 6134 SPE, Università di Corsica, F-20250, Corti, Corsica, France
| | - Jérémie Santini
- Laboratoire de Biochimie et Biologie moléculaire du végétal, UMR CNRS 6134 SPE, Università di Corsica, F-20250, Corti, Corsica, France.
| | - Yann Quilichini
- Laboratoire Parasites et Ecosystèmes méditerranéens, UMR CNRS 6134 SPE, Università di Corsica, F-20250, Corti, Corsica, France
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18
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Singh R, Khatri P, Srivastava N, Jain S, Brahmachari V, Mukhopadhyay A, Mazumder S. Fluoride exposure abates pro-inflammatory response and induces in vivo apoptosis rendering zebrafish (Danio rerio) susceptible to bacterial infections. FISH & SHELLFISH IMMUNOLOGY 2017; 63:314-321. [PMID: 28223109 DOI: 10.1016/j.fsi.2017.02.022] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2016] [Revised: 01/21/2017] [Accepted: 02/17/2017] [Indexed: 06/06/2023]
Abstract
The present study describes the immunotoxic effect of chronic fluoride exposure on adult zebrafish (Danio rerio). Zebrafish were exposed to fluoride (71.12 mg/L; 1/10 LC50) for 30 d and the expression of selected genes studied. We observed significant elevation in the detoxification pathway gene cyp1a suggesting chronic exposure to non-lethal concentration of fluoride is indeed toxic to fish. Fluoride mediated pro-oxidative stress is implicated with the downregulation in superoxide dismutase 1 and 2 (sod1/2) genes. Fluoride affected DNA repair machinery by abrogating the expression of the DNA repair gene rad51 and growth arrest and DNA damage inducible beta a gene gadd45ba. The upregulated expression of casp3a coupled with altered Bcl-2 associated X protein/B-cell lymphoma 2 ratio (baxa/bcl2a) clearly suggested chronic fluoride exposure induced the apoptotic cascade in zebrafish. Fluoride-exposed zebrafish when challenged with non-lethal dose of fish pathogen A. hydrophila revealed gross histopathology in spleen, bacterial persistence and significant mortality. We report that fluoride interferes with system-level output of pro-inflammatory cytokines tumour necrosis factor-α, interleukin-1β and interferon-γ, as a consequence, bacteria replicate efficiently causing significant fish mortality. We conclude, chronic fluoride exposure impairs the redox balance, affects DNA repair machinery with pro-apoptotic implications and suppresses pro-inflammatory cytokines expression abrogating host immunity to bacterial infections.
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Affiliation(s)
- Rashmi Singh
- Immunobiology Laboratory, Department of Zoology, University of Delhi, Delhi 110 007, India
| | - Preeti Khatri
- Immunobiology Laboratory, Department of Zoology, University of Delhi, Delhi 110 007, India
| | - Nidhi Srivastava
- Immunobiology Laboratory, Department of Zoology, University of Delhi, Delhi 110 007, India
| | - Shruti Jain
- Dr. B. R. Ambedkar Center for Biomedical Research, University of Delhi, Delhi 110007, India
| | - Vani Brahmachari
- Dr. B. R. Ambedkar Center for Biomedical Research, University of Delhi, Delhi 110007, India
| | - Asish Mukhopadhyay
- National Institute of Cholera and Enteric Diseases, Kolkata, West Bengal 700010, India
| | - Shibnath Mazumder
- Immunobiology Laboratory, Department of Zoology, University of Delhi, Delhi 110 007, India.
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19
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Mehrzad J, Mahmudy Gharaie MH, Taheri M. Effects of arsenic on porcine dendritic cells in vitro. J Immunotoxicol 2017; 14:1-8. [PMID: 28094582 DOI: 10.1080/1547691x.2016.1249985] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Abstract
Exposure to arsenic (As) is an ongoing, and in some places increasing, health problem. Still, however, the effects of As exposure on the immune system are not well understood. Dendritic cells (DC) are a critical immune cell that bridges the innate and adaptive immune systems. To determine the impact of inorganic (i)As exposure on DC, the effects of (geo)anthropogenically relevant levels of NaAsO2 on the function of porcine monocyte-derived DC (MoDC) were evaluated in an in vitro model. The results showed a low dose of iAs reduced the phagocytic capacity of MoDC. Furthermore, although surface expression of DC activation markers, such as major histocompatibility complex (MHC)-II, CD80/86, CD40 and CD25, were only slightly changed, MoDC T-cell proliferation-inducing capacity was remarkably diminished by iAs treatment. Additionally, iAs induced significant interleukin (IL)-6 secretion by MoDC after 12- or 24-h incubation, whereas IL-1β secretion was only significantly up-regulated after 12 h. The secretion patterns of IL-8, tumor necrosis factor α (TNFα and IL-10 by iAs-treated MoDC were almost similar to that by mock-treated MoDC. Considering the broad roles of DC in immunobiology, this finding deepens the understanding of molecular mechanisms/functional consequences underpinning the immunopathology, inflammation, and increases in infection arising from As exposure.
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Affiliation(s)
- Jalil Mehrzad
- a Department of Microbiology and Immunology, Faculty of Veterinary Medicine , University of Tehran , Tehran , Iran
| | | | - Masumeh Taheri
- b Department of Geology, Faculty of Basic Sciences , Ferdowsi University of Mashhad , Mashhad , Iran
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20
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Kharroubi W, Haj Ahmed S, Nury T, Andreoletti P, Sakly R, Hammami M, Lizard G. Mitochondrial dysfunction, oxidative stress and apoptotic induction in microglial BV-2 cells treated with sodium arsenate. J Environ Sci (China) 2017; 51:44-51. [PMID: 28115150 DOI: 10.1016/j.jes.2016.08.028] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Revised: 06/15/2016] [Accepted: 08/19/2016] [Indexed: 06/06/2023]
Abstract
The treatment of microglial BV-2 cells with sodium arsenate (As(V): 0.1-400μmol/L - 48hr) induces a dose-dependent response. The neurotoxic effects of high concentrations of As(V) (100, 200 and 400μmol/L) are characterized by increased levels of mitochondrial complexes I, II, and IV followed by increased superoxide anion generation. Moreover, As(V) triggers an apoptotic mode of cell death, demonstrated by an apoptotic SubG1 peak, associated with an alteration of plasma membrane integrity. There is also a decrease in transmembrane mitochondrial potential and mitochondrial adenosine triphosphate ATP. It is therefore tempting to speculate that As(V) triggers mitochondrial dysfunction, which may lead to defective oxidative phosphorylation subsequently causing mitochondrial oxidative damage, which in turn induces an apoptotic mode of cell death.
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Affiliation(s)
- Wafa Kharroubi
- Univ. Bourgogne Franche-Comté Laboratory Bio-PeroxIL, Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism EA7270/INSERM, Faculty of Sciences Gabriel, Dijon 21000, France; Laboratory of Nutrition-Functional Foods and Vascular Diseases, Faculty of Medicine, University of Monastir, Monastir 5019, Tunisia.
| | - Samia Haj Ahmed
- Univ. Bourgogne Franche-Comté Laboratory Bio-PeroxIL, Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism EA7270/INSERM, Faculty of Sciences Gabriel, Dijon 21000, France; Laboratory of Nutrition-Functional Foods and Vascular Diseases, Faculty of Medicine, University of Monastir, Monastir 5019, Tunisia
| | - Thomas Nury
- Univ. Bourgogne Franche-Comté Laboratory Bio-PeroxIL, Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism EA7270/INSERM, Faculty of Sciences Gabriel, Dijon 21000, France
| | - Pierre Andreoletti
- Univ. Bourgogne Franche-Comté Laboratory Bio-PeroxIL, Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism EA7270/INSERM, Faculty of Sciences Gabriel, Dijon 21000, France
| | - Rachid Sakly
- Laboratory of Nutrition-Functional Foods and Vascular Diseases, Faculty of Medicine, University of Monastir, Monastir 5019, Tunisia
| | - Mohamed Hammami
- Laboratory of Nutrition-Functional Foods and Vascular Diseases, Faculty of Medicine, University of Monastir, Monastir 5019, Tunisia
| | - Gérard Lizard
- Univ. Bourgogne Franche-Comté Laboratory Bio-PeroxIL, Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism EA7270/INSERM, Faculty of Sciences Gabriel, Dijon 21000, France
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21
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Singh R, Banerjee C, Ray A, Rajamani P, Mazumder S. Fluoride-induced headkidney macrophage cell apoptosis involves activation of the CaMKII g-ERK 1/2-caspase-8 axis: the role of superoxide in initiating the apoptotic cascade. Toxicol Res (Camb) 2016; 5:1477-1489. [PMID: 30090451 DOI: 10.1039/c6tx00206d] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Accepted: 07/22/2016] [Indexed: 11/21/2022] Open
Abstract
Fluoride is known to induce apoptosis though the mechanisms remain obscure. The aim of the present study was to understand the underlying molecular mechanisms of fluoride-induced apoptosis using fish headkidney macrophages (HKMs). Exposure to fluoride triggered HKM cell apoptosis as evidenced by Hoechst 333432 and AnnexinV-propidium iodide staining, the presence of an internucleosomal DNA ladder and the comet assay. Our results suggest the influx of extra-cellular Ca2+ to be an initial event in fluoride-induced HKM cell apoptosis. We observed persistently elevated levels of superoxide anions and our inhibitor studies with EGTA suggested the primal role of the Ca2+ flux in triggering superoxide production in fluoride-exposed HKM cells. Fluoride exposure led to elevated levels of Ca2+/CaM dependent protein kinase II gamma (CaMKIIg) and pre-treatment with the inhibitor KN-93 but not its inactive structural analogue KN-92 reduced the number of apoptotic cells establishing the pro-apoptotic role of CaMKIIg in fluoride-induced HKM cell apoptosis. We report that the sustained superoxide generation is primarily responsible for the increased CaMKIIg levels observed in fluoride-exposed HKM cells. Our inhibitor studies further implicated CaMKIIg in the activation of extracellular signal-regulated kinases 1 and 2 (ERK 1/2) culminating in caspase-8/caspase-3 mediated apoptosis of HKM cells. We conclude that fluoride-induced apoptosis is largely dependent on Ca2+ induced superoxide generation leading to elevation in CaMKIIg which in turn induces the phosphorylation of ERK 1/2 and downstream activation of extrinsic caspase cascade in HKM cells.
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Affiliation(s)
- Rashmi Singh
- Immunobiology Laboratory , Department of Zoology , University of Delhi , Delhi 110 007 , India . ; ; Tel: +91-11-27667985
| | - Chaitali Banerjee
- Immunobiology Laboratory , Department of Zoology , University of Delhi , Delhi 110 007 , India . ; ; Tel: +91-11-27667985
| | - Atish Ray
- Immunobiology Laboratory , Department of Zoology , University of Delhi , Delhi 110 007 , India . ; ; Tel: +91-11-27667985
| | - Paulraj Rajamani
- School of Environmental Sciences , Jawaharlal Nehru University , Delhi , India
| | - Shibnath Mazumder
- Immunobiology Laboratory , Department of Zoology , University of Delhi , Delhi 110 007 , India . ; ; Tel: +91-11-27667985
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22
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Taheri M, Mehrzad J, Afshari R, Saleh-Moghaddam M, Mahmudy Gharaie MH. Inorganic arsenic can be potent granulotoxin in mammalian neutrophils in vitro. J Immunotoxicol 2016; 13:686-93. [PMID: 27416995 DOI: 10.3109/1547691x.2016.1159625] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
An important outcome arising out of occupational/environmental exposure to arsenic (As) is immunotoxicity. To determine the impact of inorganic As on innate immune cells, effects of a low dose of NaAsO2 (i.e. 20 ng As/ml) on select parameters associated with human and bovine neutrophils (PMN) were evaluated in vitro. PMN isolated from the blood of healthy individuals and cows (n = 8/treatment) were pre-incubated with NaAsO2 for 12 h before effects on PMN phagocytosis, transcription of TLR2, TLR4 and CD64 in human PMN - as well as on phagocytosis-dependent/-independent cell chemiluminescence (CL), phagocytosis and killing of Staphylococcus aureus and Escherichia coli, PMN H2O2 production and necrosis and TLR4 transcription in bovine PMN - were assessed. Relative to control (no As) PMN, treatment with As significantly decreased phagocytic capacity and CD64 mRNA, but increased TLR2 and TLR4 mRNA, in human PMN. In bovine PMN, while As also led to increased TLR4 mRNA abundance, it resulted in decreases in phagocytosis-dependent and -independent CL, PMN H2O2 production, PMN phagocytosis and killing of both E. coli and S. aureus by PMN. Considering the broad roles of PMN in immunology, the results of these studies increase our understanding of functional consequences of As exposure in inducing immunotoxicity and increasing susceptibility to (infectious) diseases in mammals.
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Affiliation(s)
- Masumeh Taheri
- a Biochemistry Section, Department of Biology , Payame Noor University of Mashhad , Mashhad , Iran
| | - Jalil Mehrzad
- b Department of Pathobiology , Immunology and Biotechnology Sections, Institute of Biotechnology, Ferdowsi University of Mashhad , Mashhad , Iran
| | - Reza Afshari
- c Medical Toxicology Research Center, Mashhad University of Medical Sciences , Mashhad , Iran
| | - Massoud Saleh-Moghaddam
- a Biochemistry Section, Department of Biology , Payame Noor University of Mashhad , Mashhad , Iran
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23
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Arsenic Exposure and Immunotoxicity: a Review Including the Possible Influence of Age and Sex. Curr Environ Health Rep 2016; 3:1-12. [DOI: 10.1007/s40572-016-0082-3] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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24
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Dangleben NL, Skibola CF, Smith MT. Arsenic immunotoxicity: a review. Environ Health 2013; 12:73. [PMID: 24004508 PMCID: PMC3848751 DOI: 10.1186/1476-069x-12-73] [Citation(s) in RCA: 171] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2013] [Accepted: 08/24/2013] [Indexed: 05/06/2023]
Abstract
Exposure to arsenic (As) is a global public health problem because of its association with various cancers and numerous other pathological effects, and millions of people worldwide are exposed to As on a regular basis. Increasing lines of evidence indicate that As may adversely affect the immune system, but its specific effects on immune function are poorly understood. Therefore, we conducted a literature search of non-cancer immune-related effects associated with As exposure and summarized the known immunotoxicological effects of As in humans, animals and in vitro models. Overall, the data show that chronic exposure to As has the potential to impair vital immune responses which could lead to increased risk of infections and chronic diseases, including various cancers. Although animal and in vitro models provide some insight into potential mechanisms of the As-related immunotoxicity observed in human populations, further investigation, particularly in humans, is needed to better understand the relationship between As exposure and the development of disease.
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Affiliation(s)
- Nygerma L Dangleben
- Division of Environmental Health Sciences, School of Public Health, University of California, Berkeley, CA 94720, USA
| | - Christine F Skibola
- Department of Epidemiology, School of Public Health, University of Alabama, Birmingham, AL 35294, USA
| | - Martyn T Smith
- Division of Environmental Health Sciences, School of Public Health, University of California, Berkeley, CA 94720, USA
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25
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Selvaraj V, Yeager-Armstead M, Murray E. Protective and antioxidant role of selenium on arsenic trioxide-induced oxidative stress and genotoxicity in the fish hepatoma cell line PLHC-1. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2012; 31:2861-2869. [PMID: 23023949 DOI: 10.1002/etc.2022] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2012] [Revised: 06/04/2012] [Accepted: 08/14/2012] [Indexed: 06/01/2023]
Abstract
In vitro models are useful tools for rapid screening for toxicity, elucidation of mechanisms of toxicity, and understanding complex interactions among environmental toxicants. These evaluations may provide useful information for ecological evaluations if the relationship between in vitro and in vivo effects is established. The present study was undertaken to evaluate the protective effect of selenium on arsenic trioxide (As(2) O(3) )-induced cytotoxicity, DNA damage, and apoptosis. N-acetylcysteine (NAC), a free radical scavenger, was used to determine the involvement of reactive oxygen species (ROS) in As(2) O(3) -induced DNA damage and apoptosis. Poeciliopsis lucida hepatocellular carcinoma line 1 (PLHC-1) cells were pretreated with selenium (1, 5, and 10 µM) and NAC (50 and 100 µM) for 2 h. After pretreatment, cells were exposed to 100 µM of As(2) O(3) for 10-, 20-, and 40-h intervals. The As(2) O(3) exposure promoted extensive DNA damage and apoptosis compared to control, while selenium- and NAC-pretreated cells improved cell survival rate against As(2) O(3) -induced cell death. Improved survival likely resulted from increasing glutathione peroxidase activity and reduction of ROS formation, reduction of mitochondrial membrane potential damage, DNA damage, and caspase-3 activity. During As(2) O(3) exposure, selenium played the same role as NAC. The authors conclude that As(2) O(3) -induced DNA damage and apoptosis are mediated by oxidative stress and selenium and that, although toxic at higher concentrations, selenium provides significant protection against As(2) O(3) effects in PLHC-1 cells.
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Affiliation(s)
- Vellaisamy Selvaraj
- Department of Integrated Science and Technology, Marshall University, Huntington, WV, USA
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26
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Kumar R, Banerjee TK. Impact of Sodium Arsenite on Certain Biomolecules of Nutritional Importance of the Edible Components of the Economically Important CatfishC. batrachus(Linn.). Ecol Food Nutr 2012; 51:114-27. [DOI: 10.1080/03670244.2012.661330] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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27
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Lee CH, Liao WT, Yu HS. Aberrant immune responses in arsenical skin cancers. Kaohsiung J Med Sci 2011; 27:396-401. [DOI: 10.1016/j.kjms.2011.05.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2009] [Accepted: 11/18/2010] [Indexed: 11/30/2022] Open
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28
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Lavanya S, Ramesh M, Kavitha C, Malarvizhi A. Hematological, biochemical and ionoregulatory responses of Indian major carp Catla catla during chronic sublethal exposure to inorganic arsenic. CHEMOSPHERE 2011; 82:977-985. [PMID: 21094981 DOI: 10.1016/j.chemosphere.2010.10.071] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2010] [Revised: 10/08/2010] [Accepted: 10/21/2010] [Indexed: 05/30/2023]
Abstract
In the present study the acute toxicity of arsenic trioxide in fingerlings of Catla catla an Indian major carp was evaluated with renewal bioassay method. The median lethal concentration of arsenic trioxide to the fish C. catla for 96 h was found to be 20.41 ppm (with 95% confidence limits). From this a non-lethal dose of (2.041 ppm; 1/10th of LC 50 96 value) was selected and fingerlings were exposed to 35 d and hematological, biochemical and ionoregulatory responses were studied at days 7, 14, 21, 28 and 35. Arsenic trioxide produced a significant increase in hemoglobin, hematocrit, WBC count, plasma GPT levels and reduction in RBC count, plasma sodium, chloride, potassium, glucose, protein, GOT, LDH levels as compared to the control group. Gill Na(+)/K(+)-ATPase activity was influenced by arsenic trioxide exposure. A biphasic response was noted in the value of MCH and MCV. However the MCHC level was not altered in arsenic trioxide treated fish throughout the study period. Results of the present investigation suggest that arsenic trioxide affects the hematological, biochemical and ionoregulatory parameters of fish and alterations of these parameters can be useful in environmental biomonitoring of arsenic contamination.
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Kavitha C, Malarvizhi A, Senthil Kumaran S, Ramesh M. Toxicological effects of arsenate exposure on hematological, biochemical and liver transaminases activity in an Indian major carp, Catla catla. Food Chem Toxicol 2010; 48:2848-54. [DOI: 10.1016/j.fct.2010.07.017] [Citation(s) in RCA: 108] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2010] [Revised: 06/15/2010] [Accepted: 07/12/2010] [Indexed: 11/16/2022]
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30
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Datta S, Ghosh D, Saha DR, Bhattacharaya S, Mazumder S. Chronic exposure to low concentration of arsenic is immunotoxic to fish: role of head kidney macrophages as biomarkers of arsenic toxicity to Clarias batrachus. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2009; 92:86-94. [PMID: 19237206 DOI: 10.1016/j.aquatox.2009.01.002] [Citation(s) in RCA: 79] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2008] [Revised: 01/10/2009] [Accepted: 01/13/2009] [Indexed: 05/02/2023]
Abstract
The present study was aimed at elucidating the effect of chronic low-level arsenic exposure on the head kidney (HK) of Clarias batrachus and at determining the changes in head kidney macrophage (HKM) activity in response to arsenic exposure. Chronic exposure (30 days) to arsenic (As(2)O(3), 0.50 microM) led to significant increase in arsenic content in the HK accompanied by reduction in both HKM number and head kidney somatic index (HKSI). Arsenic induced HK hypertrophy, reduction in melano-macrophage population and increased hemosiderin accumulation. Transmission electron microscopy of 30 days exposed HKM revealed prominent endoplasmic reticulum, chromatin condensation and loss in structural integrity of nuclear membrane. Head kidney macrophages from exposed fish demonstrated significant levels of superoxide anions but on infection with Aeromonas hydrophila were unable to clear the intracellular bacteria and died. Exposure-challenge experiments with A. hydrophila revealed that chronic exposure to micromolar concentration of arsenic interfered with the phagocytic potential of HKM, helped in intracellular survival of the ingested bacteria inside the HKM inducing significant HKM cytotoxicity. The immunosuppressive effect of arsenic was further evident from the ability of A. hydrophila to colonize and disseminate efficiently in exposed fish. Enzyme linked immunosorbent assay indicated that chronic exposure to arsenic suppressed the production of pro-inflammatory 'IL-1beta like' factors from HKM. It is concluded that arsenic even at very low concentration is immunotoxic to fish and the changes observed in HKM may provide a useful early biomarker of low-level xenobiotic exposure.
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Affiliation(s)
- Soma Datta
- Immunobiology Laboratory, School of Life Sciences, Visva Bharati University, Santiniketan 731 235, India
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Datta S, Saha DR, Ghosh D, Majumdar T, Bhattacharya S, Mazumder S. Sub-lethal concentration of arsenic interferes with the proliferation of hepatocytes and induces in vivo apoptosis in Clarias batrachus L. Comp Biochem Physiol C Toxicol Pharmacol 2007; 145:339-49. [PMID: 17336163 DOI: 10.1016/j.cbpc.2007.01.005] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2006] [Revised: 01/03/2007] [Accepted: 01/09/2007] [Indexed: 11/16/2022]
Abstract
We studied the hepatocellular alterations induced by sub-lethal concentrations (0.50 muM) of arsenic in Indian catfish Clarias batrachus L. Sub-lethal arsenic exposure altered serum aspartate aminotransferase and alkaline phosphatase levels and brought about significant changes in different serum biochemical parameters. Arsenic exposure reduced total hepatocyte protein content and suppressed the proliferation of hepatocytes in a time-dependent manner. Routine histological studies on liver documented arsenic-induced changes characterized by dilated sinusoids, formation of intracellular edema, megalocytosis, vacuolation and appearance of hepatic cells with distorted nuclei. Transmission electron microscopy of hepatocytes further revealed hyperplasia and hypertrophy of mitochondria, development of dilated rough endoplasmic reticulum and changes in peroxisome size with duration of arsenic exposure. Degeneration of mitochondrial cristae and condensation of chromatin was also evident in arsenic-exposed hepatocytes. A significant number of hepatocytes isolated from arsenic-exposed fish stained with annexin V and demonstrated DNA ladder characteristic of apoptosis. Single-cell gel electrophoresis of exposed hepatocytes also revealed the development of comets usually seen in apoptotic cells. Using specific inhibitors it was determined that the arsenic-induced apoptosis of hepatocytes was caspase-mediated, involving the caspase 3 pathway.
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Affiliation(s)
- Soma Datta
- Immunobiology Laboratory, School of Life Sciences, Visva-Bharati University, Santiniketan 731 235, India
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