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Jeong H, Ali W, Zinck P, Souissi S, Lee JS. Toxicity of methylmercury in aquatic organisms and interaction with environmental factors and coexisting pollutants: A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 943:173574. [PMID: 38823721 DOI: 10.1016/j.scitotenv.2024.173574] [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: 03/31/2024] [Revised: 05/20/2024] [Accepted: 05/25/2024] [Indexed: 06/03/2024]
Abstract
Mercury is a hazardous heavy metal that is distributed worldwide in aquatic ecosystems. Methylmercury (MeHg) poses significant toxicity risks to aquatic organisms, primarily through bioaccumulation and biomagnification, due to its strong affinity for protein thiol groups, which results in negative effects even at low concentrations. MeHg exposure can cause various physiological changes, oxidative stress, neurotoxicity, metabolic disorders, genetic damage, and immunotoxicity. To assess the risks of MeHg contamination in actual aquatic ecosystems, it is important to understand how MeHg interacts with environmental factors such as temperature, pH, dissolved organic matter, salinity, and other pollutants such as microplastics and organic compounds. Complex environmental conditions can cause potential toxicity, such as synergistic, antagonistic, and unchanged effects, of MeHg in aquatic organisms. This review focuses on demonstrating the toxic effects of single MeHg exposure and the interactive relationships between MeHg and surrounding environmental factors or pollutants on aquatic organisms. Our review also recommends further research on biological and molecular responses in aquatic organisms to better understand the potential toxicity of combinational exposure.
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Affiliation(s)
- Haksoo Jeong
- Department of Biological Sciences, College of Science, Sungkyunkwan University, Suwon 16419, South Korea
| | - Wajid Ali
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, F-59000 Lille, France; Univ. Lille, CNRS, Univ. Littoral Côte d'Opale, IRD, UMR-8187-LOG, Laboratoire d'Océanologie et de Géosciences, Station Marine de Wimereux, F-59000 Lille, France
| | - Philippe Zinck
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, F-59000 Lille, France
| | - Sami Souissi
- Univ. Lille, CNRS, Univ. Littoral Côte d'Opale, IRD, UMR-8187-LOG, Laboratoire d'Océanologie et de Géosciences, Station Marine de Wimereux, F-59000 Lille, France; Center of Excellence for Ocean Engineering, National Taiwan Ocean University, Keelung 20224, Taiwan; Operation Center for Enterprise Academia Networking, National Taiwan Ocean University, Keelung 20224, Taiwan
| | - Jae-Seong Lee
- Department of Biological Sciences, College of Science, Sungkyunkwan University, Suwon 16419, South Korea.
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Alnedhary AA, AL-Hammadi MM, Numan AA, Murshed FA, Alalie RA. Baseline study for the total mercury determination in Yemeni fish. Heliyon 2024; 10:e31282. [PMID: 38803935 PMCID: PMC11128990 DOI: 10.1016/j.heliyon.2024.e31282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Revised: 05/13/2024] [Accepted: 05/14/2024] [Indexed: 05/29/2024] Open
Abstract
The high levels of mercury toxicity in humans make it necessary to monitor mercury levels in food, pharmaceuticals, and the environment to minimize human exposure. Between June 2020 and October 2021, researchers collected 240 fish samples from different locations along the Yemeni coast to evaluate mercury contamination. The Direct Mercury Analyzer was used to determine the concentration of mercury in each sample. To ensure method accuracy, a series of triplicate mercury concentration analyses were conducted. The samples ranged from 2 to 100 ng to determine linearity and repeatability i.e., within-day variation. The results showed a high level of precision, with a correlation coefficient of 0.9990 and a repeatability of 1.34 %-5.62 % RSD range. The method was also highly accurate, as the mercury recovery results from the contaminated fish samples ranged from 96.77 % to 105.14 %. The limits of detection and quantitation of mercury were 0.0015 ppm and 0.0049 ppm, respectively. This allowed the method to detect trace amounts of mercury in fish meat. Mercury concentration in the 240 fish samples did not exceed the FDA, but below the 0.5 ppm specified limit of YSMO.
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Affiliation(s)
- Anass A. Alnedhary
- Chemistry Department, Faculty of Education, Khawlan Branch, Sana'a University, Sana'a, Yemen
| | | | - Abdualqawi A. Numan
- Chemistry Department, Faculty of Applied Sciences, Taiz University, Taiz, Yemen
- Pharmacy Department, Faculty of Medical Sciences, Al Janad University for Science and Technology, Taiz, Yemen
| | - Fatima A. Murshed
- Chemistry Department, Faculty of Science, Sana'a University, Sana'a, Yemen
| | - Ranya A. Alalie
- Chemistry Department, Faculty of Science, Sana'a University, Sana'a, Yemen
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Ma B, Zhao X, Zhang X, Yang B, Cai Z, Xing Z, Xu M, Mi L, Zhang J, Wang L, Zhao Y, Liu X. The acute neurotoxicity of inorganic mercury in Mactra chinensis philippi. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2024; 270:106896. [PMID: 38490093 DOI: 10.1016/j.aquatox.2024.106896] [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: 08/05/2023] [Revised: 02/05/2024] [Accepted: 03/11/2024] [Indexed: 03/17/2024]
Abstract
Inorganic mercury (IHg) is hazardous to marine organisms especially resulting in neurotoxicity, bivalves are sensitive to pollutants as "ocean sentinel", but data on the neurotoxicity of IHg in bivalves are sparse. So we chosed M. chinensis philippi with typical neural structures in bivalves to investigate the neurotoxicity of IHg, which could be helpful to understand the specificity of neural regulation and the response characteristics of bivalves. After acute exposed to IHg (HgCl2) for 24 h, the metabolites of ganglion tissues in M. chinensis philippi were evaluated using 1H-nuclear magnetic resonance based metabolomics; Ca2+, neurotransmitters (nitric oxide, glutamate, acetylcholine) and related enzymes (calcineurin, nitric oxide synthase and acetylcholinesterase) were measured using biochemical detection. Compared to the control group, the levels of the nitric oxide (81.04 ± 12.84 μmol/g prot) and acetylcholine (30.93 ± 12.57 μg/mg prot) in M. chinensis philippi of IHg-treated were decreased, while glutamate (2.11 ± 0.61 mmol/L) increased significantly; the activity of nitric oxide synthase (679.34 ± 135.33 U/mg prot) was increased, while acetylcholinesterase (1.39 ± 0.44 U/mg prot) decreased significantly, and the activity of calcineurin (0.52 ± 0.02 U/mg prot) had a statistically insignificant increasing tendency. The concentration of Ca2+ (0.92 ± 0.46 mmol/g prot) in the IHg-treated group was significantly higher than that in the control group. OPLS-DA was performed to reveal the difference in metabolites between the control and IHg-challenged groups, the metabolites of glucose, glutamine, inosine, succinate, glutamate, homarine, and alanine were sensitive to IHg, subsequently metabolic pathways that were affected including glucose metabolism, glutamine metabolism, nucleotide metabolism, Krebs cycle, amino acid metabolism and osmotic regulation. In our study, IHg interfered with metabolites in M. chinensis philippi, thus the corresponding metabolic pathways were changed, which influenced the neurotransmitters subsequently. Furthermore, Ca2+overload affected the synthesis or degradation of the neurotransmitters, and then the altered neurotransmitters involved in changes in metabolic pathways again. Overall, we hypothesized that the neurotoxic effects of IHg on bivalve were in close contact with metabolism, neurotransmitters, related enzymes and Ca2+, which could be effective neurotoxic biomarkers for marine environmental quality assessment, and also provide effective data for the study of the regulatory mechanism of the nervous system in response to IHg in bivalves.
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Affiliation(s)
- Bangguo Ma
- School of Life Sciences, Ludong University, Yantai 264025, PR China
| | - Xiaoli Zhao
- Center for Reproductive Medicine, Yantai Yuhuangding Hospital, Yantai 264000, PR China
| | - Xiaoning Zhang
- The Key Laboratory of Mariculture, Ministry of Education, Fisheries College, Ocean University of China, Qingdao 266003, PR China
| | - Bowen Yang
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Zimin Cai
- School of Life Sciences, Ludong University, Yantai 264025, PR China
| | - Zihan Xing
- School of Life Sciences, Ludong University, Yantai 264025, PR China
| | - Mingzhe Xu
- School of Life Sciences, Ludong University, Yantai 264025, PR China
| | - Liuya Mi
- School of Life Sciences, Ludong University, Yantai 264025, PR China
| | | | - Lei Wang
- School of Life Sciences, Ludong University, Yantai 264025, PR China
| | - Yancui Zhao
- School of Life Sciences, Ludong University, Yantai 264025, PR China
| | - Xiaoli Liu
- School of Life Sciences, Ludong University, Yantai 264025, PR China.
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Wojdasiewicz A, Panasiuk A, Bełdowska M. The non-selective Antarctic filter feeder Salpa thompsoni as a bioindicator of mercury origin. Sci Rep 2024; 14:2245. [PMID: 38278823 PMCID: PMC10817981 DOI: 10.1038/s41598-024-52770-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Accepted: 01/23/2024] [Indexed: 01/28/2024] Open
Abstract
Hg is considered as the most toxic metal in the environment. Sources of Hg in the environment include burning fossil fuels, burning waste, and forest fires. The long residence time of the gaseous form in the atmosphere allows mercury to be transported over long distances. The pelagic tunicate Salpa thompsoni is an important component of the Antarctic environment. Over the past few decades an expansion of this species to the higher latitudes has been noted, mainly due to the ongoing climate change. The study material consisted of samples of S. thompsoni individuals, collected in the waters surrounding Elephant Island (Western Antarctic). Total mercury and five of its fractions were determined. Whole organisms were analyzed as well as internal organs: stomachs, muscle strips, and tunics. Obtained results showed that the highest concentrations of mercury in salps were observed in stomachs. With the Hg fraction results, it can be concluded that the main route of exposure of S. thompsoni to Hg is presumably absorption from the food-filtered organic and non-organic particles. Moreover, the process of transformation of simple soluble forms into organic forms of Hg in stomachs and intestines and its distribution to other tissues was observed.
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Affiliation(s)
- Adriana Wojdasiewicz
- Department of Chemical Oceanography and Marine Geology, Laboratory of Toxic Substances Transformation, Faculty of Oceanography and Geography, University of Gdańsk, Al. Marszałka Piłsudskiego 46, 81-378, Gdynia, Poland
| | - Anna Panasiuk
- Department of Marine Biology and Biotechnology, Laboratory of Plankton Biology, Faculty of Oceanography and Geography, University of Gdańsk, Al. Marszałka Piłsudskiego 46, 81-378, Gdynia, Poland.
| | - Magdalena Bełdowska
- Department of Chemical Oceanography and Marine Geology, Laboratory of Toxic Substances Transformation, Faculty of Oceanography and Geography, University of Gdańsk, Al. Marszałka Piłsudskiego 46, 81-378, Gdynia, Poland
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Gentès S, Minet A, Lopes C, Tessier E, Gassie C, Guyoneaud R, Swarzenski PW, Bustamante P, Metian M, Amouroux D, Lacoue-Labarthe T. In Vivo Mercury (De)Methylation Metabolism in Cephalopods under Different pCO 2 Scenarios. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:5761-5770. [PMID: 36976251 DOI: 10.1021/acs.est.2c08513] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
This work quantified the accumulation efficiencies of Hg in cuttlefish, depending on both organic (MeHg) and inorganic (Hg(II)) forms, under increased pCO2 (1600 μatm). Cuttlefish were fed with live shrimps injected with two Hg stable isotopic tracers (Me202Hg and 199Hg(II)), which allowed for the simultaneous quantification of internal Hg accumulation, Hg(II) methylation, and MeHg demethylation rates in different organs. Results showed that pCO2 had no impact on Hg bioaccumulation and organotropism, and both Hg and pCO2 did not influence the microbiota diversity of gut and digestive gland. However, the results also demonstrated that the digestive gland is a key organ for in vivo MeHg demethylation. Consequently, cuttlefish exposed to environmental levels of MeHg could exhibit in vivo MeHg demethylation. We hypothesize that in vivo MeHg demethylation could be due to biologically induced reactions or to abiotic reactions. This has important implications as to how some marine organisms may respond to future ocean change and global mercury contamination.
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Affiliation(s)
- Sophie Gentès
- LIENSs, UMR 7266 CNRS-La Rochelle Université, 2 rue Olympe de Gouges, 17000 La Rochelle, France
- Université de Pau et des Pays de l'Adour, E2S UPPA, CNRS, IPREM UMR, 5254 Pau, France
| | - Antoine Minet
- LIENSs, UMR 7266 CNRS-La Rochelle Université, 2 rue Olympe de Gouges, 17000 La Rochelle, France
| | - Christelle Lopes
- Univ Lyon, Université Lyon 1, CNRS, Laboratoire de Biométrie et Biologie Evolutive UMR 5558, 69622 Villeurbanne, France
| | - Emmanuel Tessier
- Université de Pau et des Pays de l'Adour, E2S UPPA, CNRS, IPREM UMR, 5254 Pau, France
| | - Claire Gassie
- Université de Pau et des Pays de l'Adour, E2S UPPA, CNRS, IPREM UMR, 5254 Pau, France
| | - Rémy Guyoneaud
- Université de Pau et des Pays de l'Adour, E2S UPPA, CNRS, IPREM UMR, 5254 Pau, France
| | - Peter W Swarzenski
- Radioecology Laboratory, International Atomic Energy Agency, Marine Environment Laboratories, Monaco 98000, Monaco
| | - Paco Bustamante
- LIENSs, UMR 7266 CNRS-La Rochelle Université, 2 rue Olympe de Gouges, 17000 La Rochelle, France
- Institut Universitaire de France (IUF), 1 rue Descartes, 75005 Paris, France
| | - Marc Metian
- Radioecology Laboratory, International Atomic Energy Agency, Marine Environment Laboratories, Monaco 98000, Monaco
| | - David Amouroux
- Université de Pau et des Pays de l'Adour, E2S UPPA, CNRS, IPREM UMR, 5254 Pau, France
| | - Thomas Lacoue-Labarthe
- LIENSs, UMR 7266 CNRS-La Rochelle Université, 2 rue Olympe de Gouges, 17000 La Rochelle, France
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