1
|
Gonçalves JM, Benedetti M, d'Errico G, Regoli F, Bebianno MJ. Polystyrene nanoplastics in the marine mussel Mytilus galloprovincialis. Environ Pollut 2023; 333:122104. [PMID: 37379876 DOI: 10.1016/j.envpol.2023.122104] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 06/21/2023] [Accepted: 06/22/2023] [Indexed: 06/30/2023]
Abstract
Concerns about plastic pollution and its toxicity towards animals and people are growing. Polystyrene (PS) is a plastic polymer highly produced in Europe for packaging purposes and building insulation amongst others. Whatever their source-illegal dumping, improper waste management, or a lack of treatment for the removal of plastic debris from wastewater treatment plants-PS products ultimately end up in the marine environment. Nanoplastics (<1000 nm) are the new focus for plastic pollution, gaining broad interest. Whether primary or secondary, their small size permits nanoparticles to cross cellular boundaries, consequently leading to adverse toxic effects. An in vitro assay of Mytilus galloprovincialis haemocytes exposed to 10 μg/L of polystyrene nanoplastics (PS-NPs; 50 nm) for 24 h was used to test cellular viability along with the luminescence inhibition (LC50) of Aliivibrio fischeri bacteria to evaluate acute toxicity. Cellular viability of mussel haemocytes decreased significantly after a 24 h exposure and PS-NPs LC50 range from 180 to 217, μg/L. In addition, a 28-day exposure of the marine bivalve M. galloprovincialis to PS-NPs (10 μg/L; 50 nm) was performed to evaluate the neurotoxic effects and the uptake of these plastic particles in three bivalve tissues (gills, digestive gland, and gonads). The ingestion of PS-NPs was time- and tissue-specific, suggesting that PS-NPs are ingested through the gills and then translocated through the mussel bloodstream, to the digestive gland and gonads where the highest amount of ingested PS-NPs was reported. Ingested PS-NPs may compromise the digestive glands' key metabolic function and impair mussels' gametogenic and reproductive success. Data on acetylcholinesterase inhibition and those previously obtained on a wide range of cellular biomarkers were elaborated through weighted criteria providing a synthetic assessment of cellular hazard from PS-NPs.
Collapse
Affiliation(s)
- J M Gonçalves
- CIMA, Centre of Marine and Environmental Research\ARNET - Infrastructure Network in Aquatic Research, University of Algarve, Campus de Gambelas, 8000-139 Faro, Portugal
| | - M Benedetti
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy; National Future Biodiversity Centre (NFBC), Palermo, Italy
| | - G d'Errico
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy
| | - F Regoli
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy; National Future Biodiversity Centre (NFBC), Palermo, Italy
| | - M J Bebianno
- CIMA, Centre of Marine and Environmental Research\ARNET - Infrastructure Network in Aquatic Research, University of Algarve, Campus de Gambelas, 8000-139 Faro, Portugal.
| |
Collapse
|
2
|
Gonçalves JM, Bebianno MJ. Ecotoxicity of emerging contaminants in the reproductive organ of marine mussels Mytilus galloprovincialis. Sci Total Environ 2023; 881:163486. [PMID: 37068673 DOI: 10.1016/j.scitotenv.2023.163486] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 03/31/2023] [Accepted: 04/09/2023] [Indexed: 06/01/2023]
Abstract
Contaminants of emerging concern (CECs) present a new threat to the marine environment, and it is vital to understand the interactions and possible toxicity of CEC mixtures once they reach the ocean. CECs-such as metal nanoparticles, nanoplastics, and pharmaceuticals-are groups of contaminants some of which have been individually evaluated, though their interactions as mixtures are still not fully understood. To ensure a healthy and prosperous future generation, successful reproduction is key: however, if hindered, population dynamics may be at danger leading to a negative impact on biodiversity. This study aimed to understand the effects of silver (20 nm nAg, 10 μg/L), polystyrene nanoparticles (50 nm nPS, 10 μg/L), and 5-fluorouracil (5FU, 10 ng/L) individually and as a mixture (10 μg/L of nPS + 10 μg/L of nAg +10 ng/L of 5FU) in the gonads of Mytilus galloprovincialis. A multibiomarker approach, namely the antioxidant defence system (ADS; superoxide dismutase, catalase, glutathione peroxidases, glutathione - S - transferases activities), and oxidative damage (OD; lipid peroxidation) were analysed in the gonads of mussels. All exposure treatments after 3 days led to an increase of enzymatic activity, followed by an inhibition after 14 and 21 days. Thus, ADS was overwhelmed due to the generation of ROS, resulting in OD, except for nPS exposed mussels. The OD in Mix exposed mussels increased exponentially by 57-fold. When CEC mixtures interact, they are potentially more hazardous than their individual components, posing a major threat to marine species. To understand synergistic and antagonistic interactions, a model was applied, and antagonistic interactions were observed in evaluated biomarkers at all time-points, apart from a synergistic interaction at day 3 relative to LPO. Results indicate that the effects observed in Mix-exposed mussel gonads are mainly due to the interaction of nAg and 5FU but not nPS.
Collapse
Affiliation(s)
- J M Gonçalves
- CIMA, Centre of Marine and Environmental Research\ARNET - Infrastructure Network in Aquatic Research, University of Algarve, Campus de Gambelas, 8000-139 Faro, Portugal
| | - M J Bebianno
- CIMA, Centre of Marine and Environmental Research\ARNET - Infrastructure Network in Aquatic Research, University of Algarve, Campus de Gambelas, 8000-139 Faro, Portugal.
| |
Collapse
|
3
|
Bebianno MJ, Mendes VM, O'Donovan S, Carteny CC, Keiter S, Manadas B. Effects of microplastics alone and with adsorbed benzo(a)pyrene on the gills proteome of Scrobicularia plana. Sci Total Environ 2022; 842:156895. [PMID: 35753444 DOI: 10.1016/j.scitotenv.2022.156895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 06/18/2022] [Accepted: 06/19/2022] [Indexed: 06/15/2023]
Abstract
Microplastics (MPs) are globally present in the marine environment, but the biological effects on marine organisms at the molecular and cellular levels remain scarce. Due to their lipophilic nature, MPs can adsorb other contaminants present in the marine environment, which may increase their detrimental effects once ingested by organisms. This study investigates the effects of low-density polyethylene (PE) MPs with and without adsorbed benzo[a]pyrene (BaP) in the gills proteome of the peppery furrow shell clam, Scrobicularia plana. Clams were exposed to PE MPs (11-13 μm; 1 mg L-1) for 14 days. BaP was analyzed in whole clams' soft tissues, and a proteomic approach was applied in the gills using SWATH/DIA analysis. Proteomic responses suggest that virgin MPs cause disturbance by altering cytoskeleton and cell structure, energy metabolism, conformational changes, oxidative stress, fatty acids, DNA binding and, neurotransmission highlighting the potential risk of this type of MPs for the clam health. Conversely, when clam gills were exposed to MPs adsorbed with BaP a higher differentiation of protein expression was observed that besides changes in cytoskeleton and cell structure, oxidative stress, energy metabolism and DNA binding also induce changes in glucose metabolism, RNA binding and apoptosis. These results indicate that the presence of both stressors (MPs and BaP) have a higher toxicological risk to the health of S. plana.
Collapse
Affiliation(s)
- M J Bebianno
- Centre for Marine and Environmental Research (CIMA), University of Algarve, Campus de Gambelas, 8000-397 Faro, Portugal.
| | - Vera M Mendes
- CNC - Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
| | - Sarit O'Donovan
- Centre for Marine and Environmental Research (CIMA), University of Algarve, Campus de Gambelas, 8000-397 Faro, Portugal
| | - Camila C Carteny
- Systemic Physiological and Ecotoxicological Research, Department of Biology, University of Antwerp, Antwerp, Belgium
| | - Stephen Keiter
- Man-Technology-Environment Research Centre (MTM), School of Science and Technology, Örebro University, Örebro, Sweden
| | - Bruno Manadas
- CNC - Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
| |
Collapse
|
4
|
Vital SA, Cardoso C, Avio C, Pittura L, Regoli F, Bebianno MJ. Do microplastic contaminated seafood consumption pose a potential risk to human health? Mar Pollut Bull 2021; 171:112769. [PMID: 34358788 DOI: 10.1016/j.marpolbul.2021.112769] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 07/21/2021] [Accepted: 07/22/2021] [Indexed: 05/07/2023]
Abstract
Microplastics are present in all parts of the ocean and can have deleterious effects on marine resources. The aim of this work was to map the presence of microplastics in commercial marine species such as bivalves (mussels Mytilus galloprovincialis and clams Scrobicularia plana), crabs (Carcinus maenas) as well as fish (Mullus surmuletus) to relate microplastics levels to pollution sources, assess possible impact on marine food chains and on human health. These species were collected from several sites of the Ria Formosa lagoon and along the south coast of Portugal. A quantitative assessment (number, size and color) and typology of microplastics were made in these species. Only one green fragment of polypropylene was detected in the gills of the crabs, while a blue polyethylene fragment was detected in the hepatopancreas of the mullets. Moreover, no microplastics were present in S. plana nor in the crabs whole soft tissues. Among mussels, 86% of microplastics were present from all sites and the number, size and color were site specific. Mussels from the west side of the coast (Sites 1-3) had the highest levels of MPs per mussel and per weight compared to the other sites, probably related to the impact of touristic activity, fishing gears, fresh water and sewage effluents along with the hydrodynamics of the area.
Collapse
Affiliation(s)
- S A Vital
- CIMA, Centre for Marine and Environmental Research, University of Algarve, Campus Gambelas, 8005-135 Faro, Portugal
| | - C Cardoso
- CIMA, Centre for Marine and Environmental Research, University of Algarve, Campus Gambelas, 8005-135 Faro, Portugal
| | - C Avio
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Ancona, Italy
| | - L Pittura
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Ancona, Italy
| | - F Regoli
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Ancona, Italy
| | - M J Bebianno
- CIMA, Centre for Marine and Environmental Research, University of Algarve, Campus Gambelas, 8005-135 Faro, Portugal.
| |
Collapse
|
5
|
Islam N, Garcia da Fonseca T, Vilke J, Gonçalves JM, Pedro P, Keiter S, Cunha SC, Fernandes JO, Bebianno MJ. Perfluorooctane sulfonic acid (PFOS) adsorbed to polyethylene microplastics: Accumulation and ecotoxicological effects in the clam Scrobicularia plana. Mar Environ Res 2021; 164:105249. [PMID: 33477023 DOI: 10.1016/j.marenvres.2020.105249] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 12/23/2020] [Accepted: 12/26/2020] [Indexed: 06/12/2023]
Abstract
Microplastics are widespread in the marine environment, whereby the uptake of these tiny particles by organisms, can cause adverse biological responses. Plastic debris also act as a vector of many contaminants, herein depending on type, size, shape and chemical properties, possibly intensifying their effects on marine organisms. This study aimed to assess the accumulation and potential toxicity of different sizes of microplastics with and without adsorbed perfluorooctane sulfonic acid (PFOS) in the clam Scrobicularia plana. Clams were exposed to low-density polyethylene microplastics (1 mg L-1) of two different sizes (4-6 and 20-25 μm) virgin and contaminated with PFOS (55.7 ± 5.3 and 46.1 ± 2.9 μg g-1 respectively) over 14 days. Microplastic ingestion, PFOS accumulation and filtration rate were determined along with a multi biomarker approach to assess the biological effects of microplastics ingestion. Biomarkers include oxidative stress (superoxide dismutase, catalase, glutathione peroxidases), biotransformation enzymes (glutathione-S-transferases activity), neurotoxicity (acetylcholinesterase activity), oxidative damage and apoptosis. Microplastics ingestion and PFOS accumulation was microplastic size dependent but not PFOS dependent and filtration rate was reduced at the end of the exposure. Reactive oxygen species in gills and digestive gland were generated as a result of exposure to both types of microplastics, confirming the disturbance of the antioxidant system. Larger virgin microparticles lead to stronger impacts, when compared to smaller ones which was also supported by the Integrated Biomarker Responses index calculated for both tissues. An anti-apoptotic response was detected in digestive glands under exposure to any of the MPs treatments.
Collapse
Affiliation(s)
- Naimul Islam
- Centre for Marine and Environmental Research (CIMA), Universidade do Algarve, Campus de Gambelas, 8000-139, Faro, Portugal
| | - Tainá Garcia da Fonseca
- Centre for Marine and Environmental Research (CIMA), Universidade do Algarve, Campus de Gambelas, 8000-139, Faro, Portugal
| | - Juliano Vilke
- Centre for Marine and Environmental Research (CIMA), Universidade do Algarve, Campus de Gambelas, 8000-139, Faro, Portugal; Fishery Engineering Department, Santa Catarina State University, Laguna, 88790-000, Brazil
| | - Joanna M Gonçalves
- Centre for Marine and Environmental Research (CIMA), Universidade do Algarve, Campus de Gambelas, 8000-139, Faro, Portugal
| | - Paulo Pedro
- Laboratório de Análises Químicas, Faculdade de Ciências e Tecnologia, Universidade do Algarve, Campus de Gambelas, 8000-139, Faro, Portugal
| | - Steffen Keiter
- Man-Technology-Environment Research Centre (MTM), School of Science and Technology, Örebro University, Fakultetsgatan 1, S-701 82, Örebro, Sweden
| | - Sara C Cunha
- LAQV-REQUIMTE, Laboratory of Bromatology and Hydrology, Faculty of Pharmacy, University of Porto, Rua Jorge de Viterbo Ferreira 228, 4050-313, Porto, Portugal
| | - José O Fernandes
- LAQV-REQUIMTE, Laboratory of Bromatology and Hydrology, Faculty of Pharmacy, University of Porto, Rua Jorge de Viterbo Ferreira 228, 4050-313, Porto, Portugal
| | - M J Bebianno
- Centre for Marine and Environmental Research (CIMA), Universidade do Algarve, Campus de Gambelas, 8000-139, Faro, Portugal.
| |
Collapse
|
6
|
Gonçalves JM, Rocha T, Mestre NC, Fonseca TG, Bebianno MJ. Assessing cadmium-based quantum dots effect on the gonads of the marine mussel Mytilus galloprovincialis. Mar Environ Res 2020; 156:104904. [PMID: 32174334 DOI: 10.1016/j.marenvres.2020.104904] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 01/21/2020] [Accepted: 02/03/2020] [Indexed: 06/10/2023]
Abstract
This study assesses the sex-specific effects induced by CdTe QDs, on the marine mussel Mytilus galloprovincialis in comparison to its dissolved counterpart. A 14 days exposure to CdTe QDs and dissolved Cd was conducted (10 μg Cd L-1), analysing Cd accumulation, oxidative stress, biotransformation, metallothionein and oxidative damage in the gonads. Both Cd forms caused significant antioxidant alterations, whereby QDs were more pro-oxidant, leading to oxidative damage, being females more affected. Overall, biochemical impairments on gonads of M. galloprovincialis demonstrate that the reproductive toxicity induced by CdTe QDs in mussels are sex-dependent and mediated by oxidative stress and lipid peroxidation. It is crucial to acknowledge how gametes are affected by metal-based nanoparticles, such as Cd-based QDs. As well as understanding the potential changes they may undergo at the cellular level during gametogenesis, embryogenesis and larval development potentially leading to serious impacts on population sustainability and ecosystem health.
Collapse
Affiliation(s)
- J M Gonçalves
- CIMA, Centre of Marine and Environmental Research, University of Algarve, Campus de Gambelas, 8000-139, Faro, Portugal
| | - T Rocha
- CIMA, Centre of Marine and Environmental Research, University of Algarve, Campus de Gambelas, 8000-139, Faro, Portugal; Laboratory of Environmental Biotechnology and Ecotoxicology, Institute of Tropical Pathology and Public Health, Federal University of Goiás, Goiânia, Goiás, Brazil
| | - N C Mestre
- CIMA, Centre of Marine and Environmental Research, University of Algarve, Campus de Gambelas, 8000-139, Faro, Portugal
| | - T G Fonseca
- CIMA, Centre of Marine and Environmental Research, University of Algarve, Campus de Gambelas, 8000-139, Faro, Portugal
| | - M J Bebianno
- CIMA, Centre of Marine and Environmental Research, University of Algarve, Campus de Gambelas, 8000-139, Faro, Portugal.
| |
Collapse
|
7
|
Mestre NC, Auguste M, de Sá LC, Fonseca TG, Cardoso C, Brown A, Barthelemy D, Charlemagne N, Hauton C, Machon J, Ravaux J, Shillito B, Thatje S, Bebianno MJ. Are shallow-water shrimps proxies for hydrothermal-vent shrimps to assess the impact of deep-sea mining? Mar Environ Res 2019; 151:104771. [PMID: 31420206 DOI: 10.1016/j.marenvres.2019.104771] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 08/02/2019] [Accepted: 08/04/2019] [Indexed: 06/10/2023]
Abstract
Polymetallic seafloor massive sulphide deposits are potential targets for deep-sea mining, but high concentrations of metals (including copper - Cu) may be released during exploitation activities, potentially inducing harmful impact. To determine whether shallow-water shrimp are suitable ecotoxicological proxies for deep-sea hydrothermal vent shrimp the effects of waterborne Cu exposure (3 and 10 days at 0.4 and 4 μM concentrations) in Palaemon elegans, Palaemon serratus, and Palaemon varians were compared with Mirocaris fortunata. Accumulation of Cu and a set of biomarkers were analysed. Results show different responses among congeneric species indicating that it is not appropriate to use shallow-water shrimps as ecotoxicological proxies for deep-water shrimps. During the evolutionary history of these species they were likely subject to different chemical environments which may have induced different molecular/biochemical adaptations/tolerances. Results highlight the importance of analysing effects of deep-sea mining in situ and in local species to adequately assess ecotoxicological effects under natural environmental conditions.
Collapse
Affiliation(s)
- N C Mestre
- Centre for Marine and Environmental Research (CIMA), Universidade do Algarve, Campus Universitário de Gambelas, 8005-139, Faro, Portugal.
| | - M Auguste
- Centre for Marine and Environmental Research (CIMA), Universidade do Algarve, Campus Universitário de Gambelas, 8005-139, Faro, Portugal
| | - L C de Sá
- Centre for Marine and Environmental Research (CIMA), Universidade do Algarve, Campus Universitário de Gambelas, 8005-139, Faro, Portugal
| | - T G Fonseca
- Centre for Marine and Environmental Research (CIMA), Universidade do Algarve, Campus Universitário de Gambelas, 8005-139, Faro, Portugal
| | - C Cardoso
- Centre for Marine and Environmental Research (CIMA), Universidade do Algarve, Campus Universitário de Gambelas, 8005-139, Faro, Portugal
| | - A Brown
- Ocean and Earth Science, University of Southampton, National Oceanography Centre, Southampton, SO14 3ZH, UK
| | - D Barthelemy
- Océanopolis, Port de Plaisance du Moulin Blanc BP 91039, 29210, Brest Cedex 1, France
| | - N Charlemagne
- Sorbonne Universités, UPMC Univ Paris 06, UMR CNRS 7208, MNHN/IRD-207/UCN/UA, Biologie des Organismes et Ecosystèmes Aquatiques, 7 Quai St Bernard, 75252, Cedex 5 Paris, France
| | - C Hauton
- Ocean and Earth Science, University of Southampton, National Oceanography Centre, Southampton, SO14 3ZH, UK
| | - J Machon
- Sorbonne Universités, UPMC Univ Paris 06, UMR CNRS 7208, MNHN/IRD-207/UCN/UA, Biologie des Organismes et Ecosystèmes Aquatiques, 7 Quai St Bernard, 75252, Cedex 5 Paris, France
| | - J Ravaux
- Sorbonne Universités, UPMC Univ Paris 06, UMR CNRS 7208, MNHN/IRD-207/UCN/UA, Biologie des Organismes et Ecosystèmes Aquatiques, 7 Quai St Bernard, 75252, Cedex 5 Paris, France
| | - B Shillito
- Sorbonne Universités, UPMC Univ Paris 06, UMR CNRS 7208, MNHN/IRD-207/UCN/UA, Biologie des Organismes et Ecosystèmes Aquatiques, 7 Quai St Bernard, 75252, Cedex 5 Paris, France
| | - S Thatje
- Ocean and Earth Science, University of Southampton, National Oceanography Centre, Southampton, SO14 3ZH, UK
| | - M J Bebianno
- Centre for Marine and Environmental Research (CIMA), Universidade do Algarve, Campus Universitário de Gambelas, 8005-139, Faro, Portugal
| |
Collapse
|
8
|
Fonseca TG, Carriço T, Fernandes E, Abessa DMS, Tavares A, Bebianno MJ. Impacts of in vivo and in vitro exposures to tamoxifen: Comparative effects on human cells and marine organisms. Environ Int 2019; 129:256-272. [PMID: 31146160 DOI: 10.1016/j.envint.2019.05.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Accepted: 05/06/2019] [Indexed: 06/09/2023]
Abstract
Tamoxifen (TAM) is a first generation-SERM administered for hormone receptor-positive (HER+) breast cancer in both pre- and post-menopausal patients and may undergo metabolic activation in organisms that share similar receptors and thus face comparable mechanisms of response. The present study aimed to assess whether environmental trace concentrations of TAM are bioavailable to the filter feeder M. galloprovincialis (100 ng L-1) and to the deposit feeder N. diversicolor (0.5, 10, 25 and 100 ng L-1) after 14 days of exposure. Behavioural impairment (burrowing kinetic), neurotoxicity (AChE activity), endocrine disruption by alkali-labile phosphate (ALP) content, oxidative stress (SOD, CAT, GPXs activities), biotransformation (GST activity), oxidative damage (LPO) and genotoxicity (DNA damage) were assessed. Moreover, this study also pertained to compare TAM cytotoxicity effects to mussels and targeted human (i.e. immortalized retinal pigment epithelium - RPE; and human transformed endothelial cells - HeLa) cell lines, in a range of concentrations from 0.5 ng L-1 to 50 μg L-1. In polychaetes N. diversicolor, TAM exerted remarkable oxidative stress and damage at the lowest concentration (0.5 ng L-1), whereas significant genotoxicity was reported at the highest exposure level (100 ng L-1). In mussels M. galloprovincialis, 100 ng L-1 TAM caused endocrine disruption in males, neurotoxicity, and an induction in GST activity and LPO byproducts in gills, corroborating in genotoxicity over the exposure days. Although cytotoxicity assays conducted with mussel haemocytes following in vivo exposure was not effective, in vitro exposure showed to be a feasible alternative, with comparable sensitivity to human cell line (HeLa).
Collapse
Affiliation(s)
- T G Fonseca
- CIMA, Centro de Investigação Marinha e Ambiental, Universidade do Algarve, Campus Gambelas, 8005-135 Faro, Portugal; NEPEA, Núcleo de Estudos em Poluição e Ecotoxicologia, Aquática, Universidade Estadual Paulista (UNESP), Campus do Litoral Paulista, São Vicente, SP 11330-900, Brazil
| | - T Carriço
- CIMA, Centro de Investigação Marinha e Ambiental, Universidade do Algarve, Campus Gambelas, 8005-135 Faro, Portugal
| | - E Fernandes
- CIMA, Centro de Investigação Marinha e Ambiental, Universidade do Algarve, Campus Gambelas, 8005-135 Faro, Portugal
| | - D M S Abessa
- NEPEA, Núcleo de Estudos em Poluição e Ecotoxicologia, Aquática, Universidade Estadual Paulista (UNESP), Campus do Litoral Paulista, São Vicente, SP 11330-900, Brazil
| | - A Tavares
- Departamento de Ciências Biomédicas e Medicina, Universidade do Algarve, Campus Gambelas, 8005-135 Faro, Portugal
| | - M J Bebianno
- CIMA, Centro de Investigação Marinha e Ambiental, Universidade do Algarve, Campus Gambelas, 8005-135 Faro, Portugal.
| |
Collapse
|
9
|
Fonseca TG, Auguste M, Ribeiro F, Cardoso C, Mestre NC, Abessa DMS, Bebianno MJ. Environmental relevant levels of the cytotoxic drug cyclophosphamide produce harmful effects in the polychaete Nereis diversicolor. Sci Total Environ 2018; 636:798-809. [PMID: 29727846 DOI: 10.1016/j.scitotenv.2018.04.318] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 04/23/2018] [Accepted: 04/24/2018] [Indexed: 06/08/2023]
Abstract
Cytotoxic drugs applied in chemotherapy enter the aquatic environment after patient's metabolism and excretion, in both main compounds and their respective metabolites. The increased consumption and discharge of these drugs raise concern on the genotoxic burden to non-target aquatic species, due to their unselective action on DNA. Settlement and adsorption of cytotoxic drugs to aquatic sediments pose risks to benthic species through chronic exposure. The aim of the present study was to assess the effects induced by the anticancer drug cyclophosphamide (CP) on the polychaete Nereis diversicolor, after 14 days of exposure to environmental relevant concentrations (10, 100, 500 and 1000 ng L-1). Burrowing impairment, neurotoxicity (Acetylcholinesterase - AChE activity), oxidative stress (superoxide dismutase - SOD; catalase - CAT; glutathione peroxidases - GPXs activities), biotransformation (glutathione-S-transferases - GST), oxidative damage (lipid peroxidation - LPO) and genotoxicity (DNA damage) were assessed. Burrowing impairments were higher at the lowest CP concentrations tested. The higher CP levels tested (500 and 1000 ng L-1) induced a significant inhibition on the enzymatic antioxidant system (SOD, GPx) and on GST activity. DNA damage was also significant at these concentrations as an outcome of CP metabolism, and high levels of oxidative damage occurred. The results showed that the prodrug CP was metabolically activated in the benthic biological model N. diversicolor. In addition to the potential cytotoxic impact likely to be caused in aquatic species with similar metabolism, N. diversicolor proved to be reliable and vulnerable to the cytotoxic mode of action of CP, even at the lower doses.
Collapse
Affiliation(s)
- T G Fonseca
- CIMA, Centre for Marine and Environmental Research, University of Algarve, Campus Gambelas, 8005-135 Faro, Portugal; NEPEA, Núcleo de Estudos em Poluição e Ecotoxicologia. Aquática, Universidade Estadual Paulista - UNESP, Campus Experimental do Litoral Paulista, Praça Infante Dom Henrique, s/n, 11330-900 São Vicente, SP, Brazil
| | - M Auguste
- CIMA, Centre for Marine and Environmental Research, University of Algarve, Campus Gambelas, 8005-135 Faro, Portugal
| | - F Ribeiro
- CIMA, Centre for Marine and Environmental Research, University of Algarve, Campus Gambelas, 8005-135 Faro, Portugal
| | - C Cardoso
- CIMA, Centre for Marine and Environmental Research, University of Algarve, Campus Gambelas, 8005-135 Faro, Portugal
| | - N C Mestre
- CIMA, Centre for Marine and Environmental Research, University of Algarve, Campus Gambelas, 8005-135 Faro, Portugal
| | - D M S Abessa
- NEPEA, Núcleo de Estudos em Poluição e Ecotoxicologia. Aquática, Universidade Estadual Paulista - UNESP, Campus Experimental do Litoral Paulista, Praça Infante Dom Henrique, s/n, 11330-900 São Vicente, SP, Brazil
| | - M J Bebianno
- CIMA, Centre for Marine and Environmental Research, University of Algarve, Campus Gambelas, 8005-135 Faro, Portugal.
| |
Collapse
|
10
|
Fonseca TG, Morais MB, Rocha T, Abessa DMS, Aureliano M, Bebianno MJ. Ecotoxicological assessment of the anticancer drug cisplatin in the polychaete Nereis diversicolor. Sci Total Environ 2017; 575:162-172. [PMID: 27744150 DOI: 10.1016/j.scitotenv.2016.09.185] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2016] [Revised: 09/22/2016] [Accepted: 09/22/2016] [Indexed: 02/07/2023]
Abstract
Anticancer drugs are designed to inhibit tumor cell proliferation by interacting with DNA and altering cellular growth factors. When released into the waterbodies of municipal and hospital effluents these pharmaceutical compounds may pose a risk to non-target aquatic organisms, due to their mode of action (cytotoxic, genotoxic, mutagenic and teratogenic). The present study aimed to assess the ecotoxicological potential of the alkylating agent cisplatin (CisPt) to the polychaete Nereis diversicolor, at a range of relevant environmental concentrations (i.e. 0.1, 10 and 100ngPtL-1). Behavioural impairment (burrowing kinetic impairment), ion pump effects (SR Ca2+-ATPase), neurotoxicity (AChE activity), oxidative stress (SOD, CAT and GPXs activities), metal exposure (metallothionein-like proteins - MTLP), biotransformation (GST), oxidative damage (LPO) and genotoxicity (DNA damage), were selected as endpoints to evaluate the sublethal responses of the ragworms after 14-days of exposure in a water-sediment system. Significant burrowing impairment occurred in worms exposed to the highest CisPt concentration (100ngPtL-1) along with neurotoxic effects. The activity of antioxidant enzymes (SOD, CAT) and second phase biotransformation enzyme (GST) was inhibited but such effects were compensated by MTLP induction. Furthermore, LPO levels also increased. Results showed that the mode of action of cisplatin may pose a risk to this aquatic species even at the range of ngL-1.
Collapse
Affiliation(s)
- T G Fonseca
- CIMA, Centre for Marine and Environmental Research, University of Algarve, Campus Gambelas, 8005-135 Faro, Portugal; NEPEA, Núcleo de Estudos em Poluição e Ecotoxicologia. Aquática, São Paulo State University - UNESP, Campus Experimental do Litoral Paulista, Praça Infante Dom Henrique, s/n, 11330-900, São Vicente, SP, Brazil
| | - M B Morais
- CIMA, Centre for Marine and Environmental Research, University of Algarve, Campus Gambelas, 8005-135 Faro, Portugal
| | - T Rocha
- CIMA, Centre for Marine and Environmental Research, University of Algarve, Campus Gambelas, 8005-135 Faro, Portugal
| | - D M S Abessa
- NEPEA, Núcleo de Estudos em Poluição e Ecotoxicologia. Aquática, São Paulo State University - UNESP, Campus Experimental do Litoral Paulista, Praça Infante Dom Henrique, s/n, 11330-900, São Vicente, SP, Brazil
| | - M Aureliano
- CCMar, Centre of Marine Sciences, University of Algarve, Campus de Gambelas, 8005-135 Faro, Portugal
| | - M J Bebianno
- CIMA, Centre for Marine and Environmental Research, University of Algarve, Campus Gambelas, 8005-135 Faro, Portugal.
| |
Collapse
|
11
|
Auguste M, Mestre NC, Rocha TL, Cardoso C, Cueff-Gauchard V, Le Bloa S, Cambon-Bonavita MA, Shillito B, Zbinden M, Ravaux J, Bebianno MJ. Development of an ecotoxicological protocol for the deep-sea fauna using the hydrothermal vent shrimp Rimicaris exoculata. Aquat Toxicol 2016; 175:277-285. [PMID: 27101410 DOI: 10.1016/j.aquatox.2016.03.024] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Revised: 03/24/2016] [Accepted: 03/29/2016] [Indexed: 06/05/2023]
Abstract
In light of deep-sea mining industry development, particularly interested in massive-sulphide deposits enriched in metals with high commercial value, efforts are increasing to better understand potential environmental impacts to local fauna. The aim of this study was to assess the natural background levels of biomarkers in the hydrothermal vent shrimp Rimicaris exoculata and their responses to copper exposure at in situ pressure (30MPa) as well as the effects of depressurization and pressurization of the high-pressure aquarium IPOCAMP. R. exoculata were collected from the chimney walls of the hydrothermal vent site TAG (Mid Atlantic Ridge) at 3630m depth during the BICOSE cruise in 2014. Tissue metal accumulation was quantified in different tissues (gills, hepatopancreas and muscle) and a battery of biomarkers was measured: metal exposure (metallothioneins), oxidative stress (catalase, superoxide dismutase, glutathione-S-transferase and glutathione peroxidase) and oxidative damage (lipid peroxidation). Data show a higher concentration of Cu in the hepatopancreas and a slight increase in the gills after incubations (for both exposed groups). Significant induction of metallothioneins was observed in the gills of shrimps exposed to 4μM of Cu compared to the control group. Moreover, activities of enzymes were detected for the in situ group, showing a background protection against metal toxicity. Results suggest that the proposed method, including a physiologically critical step of pressurizing and depressurizing the test chamber to enable the seawater exchange during exposure to contaminants, is not affecting metal accumulation and biomarkers response and may prove a useful method to assess toxicity of contaminants in deep-sea species.
Collapse
Affiliation(s)
- M Auguste
- CIMA, Faculty of Science and Technology, University of Algarve, Campus de Gambelas, 8005 139 Faro, Portugal
| | - N C Mestre
- CIMA, Faculty of Science and Technology, University of Algarve, Campus de Gambelas, 8005 139 Faro, Portugal.
| | - T L Rocha
- CIMA, Faculty of Science and Technology, University of Algarve, Campus de Gambelas, 8005 139 Faro, Portugal
| | - C Cardoso
- CIMA, Faculty of Science and Technology, University of Algarve, Campus de Gambelas, 8005 139 Faro, Portugal
| | - V Cueff-Gauchard
- Ifremer Centre Bretagne, REM/EEP/Laboratoire de Microbiologie des Environnements Extrêmes, UMR 6197, Ifremer, UBO, CNRS, ZI Pointe du Diable, CS10070, 29280 Plouzané, France; UBO, UMR 6197, UBO, Ifremer, CNRS, IUEM Rue Dumont d'Urville, 29280 Plouzané, France; CNRS, UMR 6197, CNRS, Ifremer, UBO, IUEM Rue Dumont d'Urville, 29280 Plouzané, France
| | - S Le Bloa
- Ifremer Centre Bretagne, REM/EEP/Laboratoire de Microbiologie des Environnements Extrêmes, UMR 6197, Ifremer, UBO, CNRS, ZI Pointe du Diable, CS10070, 29280 Plouzané, France; UBO, UMR 6197, UBO, Ifremer, CNRS, IUEM Rue Dumont d'Urville, 29280 Plouzané, France; CNRS, UMR 6197, CNRS, Ifremer, UBO, IUEM Rue Dumont d'Urville, 29280 Plouzané, France
| | - M A Cambon-Bonavita
- Ifremer Centre Bretagne, REM/EEP/Laboratoire de Microbiologie des Environnements Extrêmes, UMR 6197, Ifremer, UBO, CNRS, ZI Pointe du Diable, CS10070, 29280 Plouzané, France; UBO, UMR 6197, UBO, Ifremer, CNRS, IUEM Rue Dumont d'Urville, 29280 Plouzané, France; CNRS, UMR 6197, CNRS, Ifremer, UBO, IUEM Rue Dumont d'Urville, 29280 Plouzané, France
| | - B Shillito
- Sorbonne Universités, UPMC Univ. Paris 06, UMR CNRS 7208, MNHN/IRD-207/UCN/UA, Biologie des Organismes et Ecosystèmes Aquatiques, 7 Quai St. Bernard, 75252 Cedex 5 Paris, France
| | - M Zbinden
- Sorbonne Universités, UPMC Univ. Paris 06, UMR CNRS 7208, MNHN/IRD-207/UCN/UA, Biologie des Organismes et Ecosystèmes Aquatiques, 7 Quai St. Bernard, 75252 Cedex 5 Paris, France
| | - J Ravaux
- Sorbonne Universités, UPMC Univ. Paris 06, UMR CNRS 7208, MNHN/IRD-207/UCN/UA, Biologie des Organismes et Ecosystèmes Aquatiques, 7 Quai St. Bernard, 75252 Cedex 5 Paris, France
| | - M J Bebianno
- CIMA, Faculty of Science and Technology, University of Algarve, Campus de Gambelas, 8005 139 Faro, Portugal
| |
Collapse
|
12
|
Bebianno MJ, Sroda S, Gomes T, Chan P, Bonnafe E, Budzinski H, Geret F. Proteomic changes in Corbicula fluminea exposed to wastewater from a psychiatric hospital. Environ Sci Pollut Res Int 2016; 23:5046-5055. [PMID: 26423280 DOI: 10.1007/s11356-015-5395-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2014] [Accepted: 09/08/2015] [Indexed: 06/05/2023]
Abstract
The increase use of pharmaceutical compounds in veterinary practice and human population results in the ubiquitous presence of these compounds in aquatic ecosystems. Because pharmaceuticals are highly bioactive, there is concern about their toxicological effects in aquatic organisms. Therefore, the aim of this study was to assess the effects of an effluent from a psychiatric hospital (containing a complex mixture of 25 pharmaceutical compounds from eleven therapeutic classes) on the freshwater clam Corbicula fluminea using a proteomic approach. The exposure of C. fluminea to this complex effluent containing anxiolytics, analgesics, lipid regulators, beta blockers, antidepressants, antiepileptics, antihistamines, antihypertensives, antiplatelets and antiarrhythmics induced protein changes after 1 day of exposure in clam gills and digestive gland more evident in the digestive gland. These changes included increase in the abundance of proteins associated with structural (actin and tubulin), cellular functions (calreticulin, proliferating cell nuclear antigen (PCNA), T complex protein 1 (TCP1)) and metabolism (aldehyde dehydrogenase (ALDH), alcohol dehydrogenase, 6 phosphogluconate dehydrogenase). Results from this study indicate that calreticulin, PCNA, ALDH and alcohol dehydrogenase in the digestive gland and T complex protein 1 (TCP1)) and 6 phosphogluconate dehydrogenase in the gills represent useful biomarkers for the ecotoxicological characterization of psychiatric hospital effluents in this species.
Collapse
Affiliation(s)
- M J Bebianno
- CIMA, University of Algarve, Campus Gambelas, 8005-139, Faro, Portugal.
| | - S Sroda
- Laboratory of Alpine Ecology - LECA UMR-CNRS 5553, Equipe P3E 2233, rue de la piscine Campus Universitaire de Grenoble, 38400, Saint Martin d'Hères, France
| | - T Gomes
- CIMA, University of Algarve, Campus Gambelas, 8005-139, Faro, Portugal
| | - P Chan
- PISSARO Proteomic plateform, IRIB, University of Rouen, 76821, Mont-Saint-Aignan Cedex, France
| | - E Bonnafe
- Centre Universitaire J. F. Champollion, Place de Verdun, 81012, Albi Cedex 12, France
| | - H Budzinski
- Laboratory of Physico and Toxico-Chemistry of the Environment, UMR EPOC CNRS 5805, University Bordeaux 1, 351 cours de la Libération, 33405, Talence, France
| | - F Geret
- Laboratory GEODE, UMR CNRS 5602, University of Toulouse, Centre Universitaire J.F. Champollion, Place de Verdun, 81012, Albi Cedex 12, France
| |
Collapse
|
13
|
Bebianno MJ, Gonzalez-Rey M, Gomes T, Mattos JJ, Flores-Nunes F, Bainy ACD. Is gene transcription in mussel gills altered after exposure to Ag nanoparticles? Environ Sci Pollut Res Int 2015; 22:17425-17433. [PMID: 26278907 DOI: 10.1007/s11356-015-5186-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Accepted: 08/10/2015] [Indexed: 06/04/2023]
Abstract
Nanotechnology is a rapid field of development with the enhancement of the production of different types of nanoparticles (NPs) applied in several industrial and commercial applications which increase the risk of their presence in the aquatic environment. Ag NPs have a wide application in everyday life products. However, there is concern about the exposure effects on aquatic organisms to these NPs. Therefore, this study aims to assess gene transcription alterations in mussels Mytilus galloprovincialis gills exposed for 2 weeks to Ag NPs (42 ± 10 nm, 10 μg.L(-1)). The genes were selected based on previous biomarkers and proteomic results and included superoxide dismutase (SOD), catalase (CAT), glutathione transferase (GST), caspase 3/7-1 (CAS), cathepsin L (CATH), heat-shock protein 70 (HSP 70), cytochrome P450 4YA (CYP 4YA), the elongation factor (EF1), actin and α- tubulin. No significant changes in gene transcription profiles were observed after exposure of M. galloprovincialis to Ag NPs for 15 days. The lack of significant gene transcription responses is in light with previous results obtained for mussels exposed to these NPs and may be related to the fact that enzyme kinetics and relative abundance of proteins (increase of antioxidant enzymes and metalllothioneins (MTs) with the time of exposure) do not always directly reflect their relative mRNA levels. Nevertheless, their overall expression maintenance may signify that, at end of the exposure period (15 days), the transcription of the respective genes is no longer required, pointing out to a possible adaptation effect to nanoparticles or due to the levels of Ag NPs accumulated in this tissue at this exposure time. This study highlights that gene transcription application and role as an additional and/or alternative end point approach is important to understand the mode of action of these emergent contaminants in aquatic organisms. However, in future studies, the time window needs to be adjusted, as genes are likely to respond earlier to the nanoparticle exposure.
Collapse
Affiliation(s)
- M J Bebianno
- CIMA, Marine and Environmental Research Center, University of Algarve, Campus de Gambelas, 8000135, Faro, Portugal.
| | - M Gonzalez-Rey
- CIMA, Marine and Environmental Research Center, University of Algarve, Campus de Gambelas, 8000135, Faro, Portugal
| | - T Gomes
- CIMA, Marine and Environmental Research Center, University of Algarve, Campus de Gambelas, 8000135, Faro, Portugal
| | - J J Mattos
- LABCAI, Department of Biochemistry, Federal University of Santa Catarina, 88034-257, Florianopolis, SC, Brazil
| | - F Flores-Nunes
- LABCAI, Department of Biochemistry, Federal University of Santa Catarina, 88034-257, Florianopolis, SC, Brazil
| | - A C D Bainy
- LABCAI, Department of Biochemistry, Federal University of Santa Catarina, 88034-257, Florianopolis, SC, Brazil
| |
Collapse
|
14
|
Bebianno MJ, Pereira CG, Rey F, Cravo A, Duarte D, D'Errico G, Regoli F. Integrated approach to assess ecosystem health in harbor areas. Sci Total Environ 2015; 514:92-107. [PMID: 25659308 DOI: 10.1016/j.scitotenv.2015.01.050] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2014] [Revised: 01/14/2015] [Accepted: 01/18/2015] [Indexed: 06/04/2023]
Abstract
UNLABELLED Harbors are critical environments with strategic economic importance but with potential environmental impact: health assessment criteria are a key issue. An ecosystem health status approach was carried out in Portimão harbor as a case-study. Priority and specific chemical levels in sediments along with their bioavailability in mussels, bioassays and a wide array of biomarkers were integrated in a biomarker index (IBR index) and the overall data in a weight of evidence (WOE) model. Metals, PAHs, PCBs and HCB were not particularly high compared with sediment guidelines and standards for dredging. Bioavailability was evident for Cd, Cu and Zn. Biomarkers proved more sensitive namely changes of antioxidant responses, metallothioneins and vittellogenin-like proteins. IBR index indicated that site 4 was the most impacted area. Assessment of the health status by WOE approach highlighted the importance of integrating sediment chemistry, bioaccumulation, biomarkers and bioassays and revealed that despite some disturbance in the harbor area, there was also an impact of urban effluents from upstream. CAPSULE ABSTRACT Environmental quality assessment in harbors.
Collapse
Affiliation(s)
- M J Bebianno
- CIMA, University of Algarve Campus de Gambelas, 8005-139 Faro, Portugal.
| | - C G Pereira
- CIMA, University of Algarve Campus de Gambelas, 8005-139 Faro, Portugal
| | - F Rey
- CIMA, University of Algarve Campus de Gambelas, 8005-139 Faro, Portugal
| | - A Cravo
- CIMA, University of Algarve Campus de Gambelas, 8005-139 Faro, Portugal
| | - D Duarte
- CIMA, University of Algarve Campus de Gambelas, 8005-139 Faro, Portugal
| | - G D'Errico
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Ancona, Italy
| | - F Regoli
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Ancona, Italy
| |
Collapse
|
15
|
Gago-Tinoco A, González-Domínguez R, García-Barrera T, Blasco-Moreno J, Bebianno MJ, Gómez-Ariza JL. Metabolic signatures associated with environmental pollution by metals in Doñana National Park using P. clarkii as bioindicator. Environ Sci Pollut Res Int 2014; 21:13315-13323. [PMID: 24756666 DOI: 10.1007/s11356-014-2741-y] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2013] [Accepted: 03/04/2014] [Indexed: 06/03/2023]
Abstract
Bioindicators can reflect the effects of pollutants on their metabolism, being widely used to assess environmental stress. In this sense, the crab Procambarus clarkii has been previously proposed to monitor the contamination in Doñana National Park (southwest Spain) using conventional biomarkers. In this work, a metabolomic approach based on direct infusion mass spectrometry, which allows an easy and quick study of a large number of metabolites in a single run, was used for pollution assessment of this area, considering the biological response of this organism to contamination. In addition, metal accumulation in crab tissues was determined. Thus, the integrated analysis of metabolomic and metallomic data enabled the study of metabolic response of the organism against pollution. Several metabolites were discovered as potential biomarkers of pollution, such as decreased levels of carnosine, alanine, niacinamide, acetoacetate, pantothenic acid, ascorbate, glucose-6-phosphate, arginine, glucose, lactate, phospholipids, and tryglicerides, as well as elevated levels of acetyl carnitine, phosphocholine, choline, and uric acid. In this way, metal-induced toxicity could be related to metabolic impairments, principally oxidative stress, metabolic dysfunction, and dyslipidemia.
Collapse
Affiliation(s)
- Amanda Gago-Tinoco
- Department of Chemistry and Material Science, Faculty of Experimental Sciences, University of Huelva, Campus de El Carmen, 21007, Huelva, Spain
| | | | | | | | | | | |
Collapse
|
16
|
Picot Groz M, Martinez Bueno MJ, Rosain D, Fenet H, Casellas C, Pereira C, Maria V, Bebianno MJ, Gomez E. Detection of emerging contaminants (UV filters, UV stabilizers and musks) in marine mussels from Portuguese coast by QuEChERS extraction and GC-MS/MS. Sci Total Environ 2014; 493:162-169. [PMID: 24946029 DOI: 10.1016/j.scitotenv.2014.05.062] [Citation(s) in RCA: 99] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2014] [Revised: 04/10/2014] [Accepted: 05/08/2014] [Indexed: 06/03/2023]
Abstract
The UV filters and musk fragrances have come into focus because these compounds are contained and increasingly used not only in sunscreen products but also in many products of daily use, such as cosmetics, skin creams, plastics or varnish. In view of this, the main objective of the present work was to develop and validate a method for the determination of three UV filters, two UV stabilizers and four musks in mussel samples (Mytilus galloprovincialis). The procedure combined a QuEChERS (Quick, Easy, Cheap, Effective, Rugged, and Safe) extraction method with an analysis by gas chromatography-tandem mass spectrometry (GC-MS/MS). The methodology allowed the determination of target analytes at trace concentration levels (ng/g), with mean recoveries ranging from 91 to 112%. A monitoring study was conducted in four beaches in the Portuguese coast which are impacted by recreational activities and outflow of treated waste water effluents in rivers. The results are used to assess the occurrence of UV filters in comparison with UV stabilizers and musk fragrances which indicate other activities than bathing.
Collapse
Affiliation(s)
- M Picot Groz
- Hydrosciences Montpellier UMR 5569, Dept. Environmental Sciences and Public Health, University of Montpellier I, 34000 Montpellier, France
| | - M J Martinez Bueno
- Hydrosciences Montpellier UMR 5569, Dept. Environmental Sciences and Public Health, University of Montpellier I, 34000 Montpellier, France
| | - D Rosain
- Hydrosciences Montpellier UMR 5569, Dept. Environmental Sciences and Public Health, University of Montpellier I, 34000 Montpellier, France
| | - H Fenet
- Hydrosciences Montpellier UMR 5569, Dept. Environmental Sciences and Public Health, University of Montpellier I, 34000 Montpellier, France
| | - C Casellas
- Hydrosciences Montpellier UMR 5569, Dept. Environmental Sciences and Public Health, University of Montpellier I, 34000 Montpellier, France
| | - C Pereira
- Laboratory of Cima, University of Algarve, Campus de Gambelas, 8000-397 Faro, Portugal
| | - V Maria
- Laboratory of Cima, University of Algarve, Campus de Gambelas, 8000-397 Faro, Portugal
| | - M J Bebianno
- Laboratory of Cima, University of Algarve, Campus de Gambelas, 8000-397 Faro, Portugal
| | - E Gomez
- Hydrosciences Montpellier UMR 5569, Dept. Environmental Sciences and Public Health, University of Montpellier I, 34000 Montpellier, France.
| |
Collapse
|
17
|
Gonzalez-Rey M, Mattos JJ, Piazza CE, Bainy ACD, Bebianno MJ. Effects of active pharmaceutical ingredients mixtures in mussel Mytilus galloprovincialis. Aquat Toxicol 2014; 153:12-26. [PMID: 24630142 DOI: 10.1016/j.aquatox.2014.02.006] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2013] [Revised: 01/28/2014] [Accepted: 02/11/2014] [Indexed: 06/03/2023]
Abstract
Active pharmaceutical ingredients (APIs) are emergent environmental contaminants widely detected in surface waters as result of incomplete waste water treatment plant (WWTP) removal processes and improper disposal. The assessment of potential effects of APIs on non-target organisms is still scarce since besides presenting multiple chemical structures, properties and modes of action, these compounds occur as complex mixtures. This study comprises a 15-day exposure of mussels Mytilus galloprovincialis to mixtures (at environmentally relevant nominal concentrations) of non-steroidal inflammatory drugs ibuprofen (IBU) and diclofenac (DCF) (250 ng L(-1) each) and selective serotonin reuptake inhibitor (SSRI) fluoxetine (FLX) (75 ng L(-1)) (MIX 1) along with the addition of classical pro-oxidant copper (Cu) (5 μg L(-1)) (MIX 2). The goals included the assessment of oxidative stress, neurotoxic and endocrine effects on this sentinel species applying both a multibiomarker and gene expression (here and later gene expression is taken as synonym to gene transcription, although it is acknowledged that it is also affected by, e.g. translation, and mRNA and protein stability) analysis approaches. The results revealed a swifter antioxidant response in digestive glands than in gills induced by MIX 1, nevertheless the presence of Cu in MIX 2 promoted a higher lipid peroxidation (LPO) induction. Neither mixture altered acetylcholinesterase (AChE) activity, while both triggered the formation of vitellogenin-like proteins in females confirming the xenoestrogenic effect of mixtures. All these results varied with respect to those obtained in previous single exposure essays. Moreover, RT-PCR analysis revealed a catalase (CAT) and CYP4Y1 gene expression down- and upregulation, respectively, with no significant changes in mRNA levels of genes encoding superoxide dismutase (SOD) and glutathione-S-transferase (GST). Finally, this study highlights variable tissue and time-specific biomarker responses and gene expression alterations, which along with several interactions between each mixture component on each biomarker confirm the susceptibility of mussels to API mixtures.
Collapse
Affiliation(s)
- M Gonzalez-Rey
- CIMA, Marine and Environmental Research Center, University of Algarve, Campus de Gambelas, 8000135 Faro, Portugal
| | - J J Mattos
- Laboratório de Biomarcadores de Contaminacão Aquática, Laboratory of Aquatic Contamination Biomarkers, Department of Biochemistry, Federal University of Santa Catarina, 88040900 Florianopolis, SC, Brazil
| | - C E Piazza
- Laboratório de Biomarcadores de Contaminacão Aquática, Laboratory of Aquatic Contamination Biomarkers, Department of Biochemistry, Federal University of Santa Catarina, 88040900 Florianopolis, SC, Brazil
| | - A C D Bainy
- Laboratório de Biomarcadores de Contaminacão Aquática, Laboratory of Aquatic Contamination Biomarkers, Department of Biochemistry, Federal University of Santa Catarina, 88040900 Florianopolis, SC, Brazil
| | - M J Bebianno
- CIMA, Marine and Environmental Research Center, University of Algarve, Campus de Gambelas, 8000135 Faro, Portugal.
| |
Collapse
|
18
|
Fonseca VF, Vasconcelos RP, França S, Serafim A, Lopes B, Company R, Bebianno MJ, Costa MJ, Cabral HN. Modeling fish biological responses to contaminants and natural variability in estuaries. Mar Environ Res 2014; 96:45-55. [PMID: 24239066 DOI: 10.1016/j.marenvres.2013.10.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2013] [Revised: 10/15/2013] [Accepted: 10/25/2013] [Indexed: 06/02/2023]
Abstract
Understanding the factors that influence biological responses to contaminants has long been a major goal in marine environmental research. Seven estuarine sites along the Portuguese coast were sampled over a year, and different biological responses of Pomatoschistus microps and Atherina presbyter were determined: superoxide dismutase, catalase, ethoxyresorufin O-deethylase, glutathione S-transferase, metallothioneins, lipid peroxidation, RNA:DNA ratio and condition factor K. Generalized linear models (GLM) were developed for each biological variable per species in relation to sediment chemical characterization (metals and polycyclic aromatic hydrocarbons concentration) and environmental conditions (month, site, water temperature, salinity, depth and mud percentage in the sediment). GLM varied in explanatory power and in the set of predictor variables included in the models. Environmental factors were frequently selected as predictor variables. Individual metals concentration and sediment quality guidelines (integrating all metals) were the major contaminants explaining biological variability. Accordingly, models for metallothioneins and lipid peroxidation had highest explanatory power. Species-specific responses and dataset size were the basis of observed differences between GLM for the two species.
Collapse
Affiliation(s)
- V F Fonseca
- Centro de Oceanografia, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal.
| | - R P Vasconcelos
- Centro de Oceanografia, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
| | - S França
- Centro de Oceanografia, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
| | - A Serafim
- CIMA, Faculdade de Ciências do Mar e do Ambiente, Universidade do Algarve, Campus de Gambelas, 8005-139 Faro, Portugal
| | - B Lopes
- CIMA, Faculdade de Ciências do Mar e do Ambiente, Universidade do Algarve, Campus de Gambelas, 8005-139 Faro, Portugal
| | - R Company
- CIMA, Faculdade de Ciências do Mar e do Ambiente, Universidade do Algarve, Campus de Gambelas, 8005-139 Faro, Portugal
| | - M J Bebianno
- CIMA, Faculdade de Ciências do Mar e do Ambiente, Universidade do Algarve, Campus de Gambelas, 8005-139 Faro, Portugal
| | - M J Costa
- Centro de Oceanografia, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
| | - H N Cabral
- Centro de Oceanografia, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
| |
Collapse
|
19
|
Maria VL, Gomes T, Barreira L, Bebianno MJ. Impact of benzo(a)pyrene, Cu and their mixture on the proteomic response of Mytilus galloprovincialis. Aquat Toxicol 2013; 144-145:284-295. [PMID: 24211336 DOI: 10.1016/j.aquatox.2013.10.009] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2013] [Revised: 10/07/2013] [Accepted: 10/08/2013] [Indexed: 06/02/2023]
Abstract
In natural waters, chemical interactions between mixtures of contaminants can result in potential synergistic and/or antagonic effects in aquatic animals. Benzo(a)pyrene (BaP) and copper (Cu) are two widespread environmental contaminants with known toxicity towards mussels Mytilus spp. The effects of the individual and the interaction of BaP and Cu exposures were assessed in mussels Mytilus galloprovincialis using proteomic analysis. Mussels were exposed to BaP [10 μg L(-1) (0.396 μM)], and Cu [10 μg L(-1) (0.16 μM)], as well as to their binary mixture (mixture) for a period of 7 days. Proteomic analysis showed different protein expression profiles associated to each selected contaminant condition. A non-additive combined effect was observed in mixture in terms of new and suppressed proteins. Proteins more drastically altered (new, suppressed and 2-fold differentially expressed) were excised and analyzed by mass spectrometry, and eighteen putatively identified. Protein identification demonstrated the different accumulation, metabolism and chemical interactions of BaP, Cu and their mixture, resulting in different modes of action. Proteins associated with adhesion and motility (catchin, twitchin and twitchin-like protein), cytoskeleton and cell structure (α-tubulin and actin), stress response (heat shock cognate 71, heat shock protein 70, putative C1q domain containing protein), transcription regulation (zinc-finger BED domain-containing and nuclear receptor subfamily 1G) and energy metabolism (ATP synthase F0 subunit 6 protein and mannose-6-phosphate isomerase) were assigned to all three conditions. Cu exposure alone altered proteins associated with oxidative stress (glutathione-S-transferase) and digestion, growth and remodelling processes (chitin synthase), while the mixture affected only one protein (major vault protein) possibly related to multi drug resistance. Overall, new candidate biomarkers, namely zinc-finger BED domain-containing protein, chitin synthase and major vault protein, were also identified for BaP, Cu and mixture, respectively.
Collapse
Affiliation(s)
- V L Maria
- CIMA, Faculty of Sciences and Technology, University of Algarve, Campus de Gambelas, 8005-139 Faro, Portugal.
| | | | | | | |
Collapse
|
20
|
Bebianno MJ, Langston WJ. Cadmium and metallothionein turnover in different tissues of the gastropod Littorina littorea. Talanta 2012; 46:301-13. [PMID: 18967152 DOI: 10.1016/s0039-9140(97)00344-5] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/1996] [Revised: 03/03/1997] [Accepted: 03/04/1997] [Indexed: 10/16/2022]
Abstract
This paper attempts to link the kinetics of Cd and metallothionein turnover in the intertidal marine snail Littorina littorea. The results demonstrate that the turnover of metallothionein is tissue dependent. Metallothionein has an estimated half-life of 69 and 160 days in the gills and kidney, respectively. The half-life could not be calculated for metallothionein in the digestive gland and is probably much longer than the other two tissues. Cadmium elimination from the gill and kidney is considerably slower than the respective metallothioneins (half-life in excess of 300 days) indicating closed cycling of the metal in these tissues. In contrast, cadmium levels in the digestive gland continue to increase during the detoxification period reflecting some remobilization from other tissues. Metallothionein turnover is extremely slow in Littorina when compared with mammals and other bivalve molluscs: even though metallothionein degradation is measurable in some gastropod tissues, the released cadmium may induce de novo metallothionein synthesis to which cadmium becomes resequestered. The slow metallothionein turnover rates and the lack of significant cadmium excretion testify to the relatively stable nature of the cadmium-metallothionein complex in this invertebrate.
Collapse
Affiliation(s)
- M J Bebianno
- Unidade de Ciência e Tecnologia dos Recursos Aquáticos, Universidade do Algarve, Campus de Gambelas, 8000 Faro, Portugal
| | | |
Collapse
|
21
|
Lopes B, Ferreira AM, Bebianno MJ. Responses of CYP450 dependent system to aliphatic and aromatic hydrocarbons body burden in transplanted mussels from South coast of Portugal. Ecotoxicology 2012; 21:730-749. [PMID: 22143384 DOI: 10.1007/s10646-011-0834-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 11/20/2011] [Indexed: 05/31/2023]
Abstract
Mussels Mytilus galloprovincialis were cross-transplanted at South Portugal from a reference site (site 1) to a site more contaminated with hydrocarbon compounds (site 2), and vice versa, in an active biomonitoring (ABM) concept, to assess the biotransformation capacity catalyzed by the mixed function oxygenase (MFO) system. Total alkanes (TAlk), the unresolved complex mixture (UCM), and total polycyclic aromatic hydrocarbons (TPAHs) concentration increased respectively 6, 4.4 and 4.2 fold relatively to control, in mussels transplanted from site 1 to 2. In the cross-transplant, a 48, 57 and 62% depuration of TAlk, UCM and TPAHs concentrations occurred by the end of the 3-4th week. Petrogenic and biogenic (marine and terrigenous) sources of AHs, and petrogenic and pyrolitic (biomass and oil/fuel incomplete combustion) sources of PAHs were detected at both sites. CYP450, CYT b (5) and NADPH-RED in mussels transplanted from site 1 to 2 were induced from day 0 to 28, with a total increase of 35, 32 and 35%, respectively, while biochemical equilibrium to lesser environmental contamination occurs in mussels transplanted from site 2 to 1. A significant relationship between CYP450 and NADPH-RED was found with TPAH, with distinctive behavior at the two sites. MFO system components increase with exposure time at one site and decreases in the other, reflecting an adaptation to distinct environmental hydrocarbon loads. The ABM strategy proved to be useful to understand the environment real impact on the biochemical responses in mussels' local populations. In this study, CYP450 and NADPH-RED are a useful biomarker for hydrocarbon exposure.
Collapse
Affiliation(s)
- B Lopes
- CIMA, Faculty of Sciences and Technologies, University of Algarve, Campus de Gambelas, 8005-130 Faro, Portugal
| | | | | |
Collapse
|
22
|
Cravo A, Pereira C, Gomes T, Cardoso C, Serafim A, Almeida C, Rocha T, Lopes B, Company R, Medeiros A, Norberto R, Pereira R, Araújo O, Bebianno MJ. A multibiomarker approach in the clam Ruditapes decussatus to assess the impact of pollution in the Ria Formosa lagoon, South Coast of Portugal. Mar Environ Res 2012; 75:23-34. [PMID: 22001190 DOI: 10.1016/j.marenvres.2011.09.012] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2011] [Revised: 09/22/2011] [Accepted: 09/23/2011] [Indexed: 05/31/2023]
Abstract
The Ria Formosa lagoon is an ecosystem whose water quality reflects the anthropogenic influence upon the surrounding areas. In this lagoon, the clam Ruditapes decussatus has a great economical importance and has been widely used as a biomonitor. A multibiomarker approach (δ-aminolevulinic acid dehydratase, metallothionein, lipid peroxidation, acetylcholinesterase, alkali-labile phosphates, DNA damage) was applied to assess the environmental quality of this ecosystem and the accumulation of contaminants and their potential adverse effects on clams. Clams were sampled in different shellfish beds in the period between July 2007 and December 2008 and abiotic parameters (temperature, salinity, pH and dissolved oxygen of seawater and organic matter in the sediment), condition index, metals (Cd, Cu, Zn, Ni, Pb), TBTs and PAHs concentrations were measured in clam tissues. Data was integrated using Principal Component Analyses and biomarker indices: IBR (Integrated Biomarker Response) and HSI (Health Status Index). This multibiomarker approach enabled discrimination of a time and space trend between sites with different degrees of anthropogenic contamination, identifying one of them (site 2) as the most stressful and summer months as the most critical period for clams due to an increase of environmental stress (anthropogenic pressure along with extreme environmental conditions, e.g. temperature, dissolved oxygen, organic matter in the sediments, etc). The selected biomarkers provided an integrated response to assess the environmental quality of the system, proving to be a useful approach when complex mixtures of contaminants occur.
Collapse
Affiliation(s)
- A Cravo
- CIMA-Centre for Marine and Environmental Research, Faculty of Sciences and Technology (FCT), University of Algarve, Campus de Gambelas, 8005-139 Faro, Portugal
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
23
|
Serafim A, Company R, Lopes B, Rosa J, Cavaco A, Castela G, Castela E, Olea N, Bebianno MJ. Assessment of essential and nonessential metals and different metal exposure biomarkers in the human placenta in a population from the south of Portugal. J Toxicol Environ Health A 2012; 75:867-877. [PMID: 22788373 DOI: 10.1080/15287394.2012.690704] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The general population is exposed to metals as trace amounts of metallic compounds are present in air, water, and food. Information on background exposures and biomarker concentrations of environmental chemicals in the general Portuguese population is limited. Therefore, the purpose of this study was to determine the levels of important nonessential metals with recognized toxicity cadmium (Cd) and lead (Pb) and essential metals copper (Cu), nickel (Ni), chromium (Cr), and zinc (Zn) in placentas of mothers living in south Portugal (Algarve). Due to the difficulty in establishing the effects of chemicals in a complex and variable environment, this study also aimed to examine the response of biomarkers, such as biochemical changes that occurs at subcellular levels in the presence of contaminants. The investigated biomarkers in placentas indicative of metal exposure or damage included the metallothioneins (MT), delta-aminolevulinic acid dehydratase (ALAD) (specific for Pb), and lipid peroxidation (LPO) as an index of oxidative stress damage. Moreover, HJ-BIPLOT was applied in order to identify and categorize mothers vulnerable to environmental contamination in this region. Metal concentrations in the placenta were not excessive but within the range found in most European studies. In general, the biomarkers MT and LPO were positively correlated with metal levels, while with ALAD the opposite occurred, indicating the selected battery of biomarkers were suitable to study the effects of metals on human placenta. Further, the application of multivariate analysis with HJ-BIPLOT showed that most significant factors contributing to maternal and fetal exposures via placenta were dietary and smoking habits.
Collapse
Affiliation(s)
- A Serafim
- University of Algarve, CIMA, Faculty of Marine and Environmental Sciences, Campus de Gambelas, Faro, Portugal.
| | | | | | | | | | | | | | | | | |
Collapse
|
24
|
Fonseca VF, França S, Vasconcelos RP, Serafim A, Company R, Lopes B, Bebianno MJ, Cabral HN. Short-term variability of multiple biomarker response in fish from estuaries: Influence of environmental dynamics. Mar Environ Res 2011; 72:172-178. [PMID: 21868087 DOI: 10.1016/j.marenvres.2011.08.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2011] [Revised: 07/31/2011] [Accepted: 08/05/2011] [Indexed: 05/31/2023]
Abstract
Short-term variability in biomarker responses and the effects of temperature and salinity variation were explored in three fish species (Dicentrarchus labrax, Solea senegalensis and Pomatoschistus microps) occurring in the Tejo estuary. Short-term variability in biomarkers was observed in all species although no pattern was discerned over time (days to weeks). Antioxidant enzymes activity (superoxide dismutase (SOD) and catalase (CAT)) showed low temporal variability, indicating some constancy or baseline level in antioxidant responses. Only CAT activity in S. senegalensis was correlated with temperature, suggesting that exposure to contaminants triggered antioxidant acclimation. Higher short-term variability was observed in xenobiotic biotransformation enzymes activity (phase I ethoxyresorufin O-deethylase (EROD) and phase II glutathione S-transferase (GST)). Yet a significant correlation between EROD and GST in D. labrax and S. senegalensis suggests a concomitant response to contaminants. Moreover the lack of correlation between xenobiotic biotransformation enzymes and abiotic variables on concordant time scales, suggest a high specificity of these biomarkers to chemical exposure, rather than high variability due to environmental dynamics.
Collapse
Affiliation(s)
- V F Fonseca
- Centro de Oceanografia, Faculdade de Ciências da, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal.
| | | | | | | | | | | | | | | |
Collapse
|
25
|
Maria VL, Bebianno MJ. Antioxidant and lipid peroxidation responses in Mytilus galloprovincialis exposed to mixtures of benzo(a)pyrene and copper. Comp Biochem Physiol C Toxicol Pharmacol 2011; 154:56-63. [PMID: 21354328 DOI: 10.1016/j.cbpc.2011.02.004] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2010] [Revised: 02/15/2011] [Accepted: 02/15/2011] [Indexed: 01/14/2023]
Abstract
This study aimed to assess the antioxidant system potential and lipid peroxidative effects, in the gill and digestive gland of Mytilus galloprovincialis exposed to individual and binary mixtures of benzo(a)pyrene (BaP) and Cu for 7 days. Data demonstrated that in mussels exposed to BaP antioxidant enzymes (catalase--CAT, total glutathione peroxidase--tGPx, glutathione S-transferase--GST and glutathione reductase--GR) and lipid peroxidation (LPO) increased in the gill. On the contrary, in the digestive gland inhibitory antioxidant effects (superoxide dismutase-SOD, GR, metallothioneins-MT) and no changes in LPO levels were detected. Cu was also a potent oxidant agent since MT and LPO levels increased in mussel gill, despite no LPO effect in the digestive gland. For both single contaminants the organ specificity and distinct physiologic/metabolism roles were evident in terms of antioxidant capacity. Gill SOD inhibition, MT and GST unchanged was a result of "simple independent action" of exposure to BaP and Cu. "Interactions" in the binary mixtures, led to absence of changes in LPO effects. In the digestive gland, BaP and Cu interactions were also responsible for the GST and LPO enhancement (antagonistic effects). The current findings demonstrate the differences in antioxidant responses where the organ dependency highlights each contaminant particular mode of action. Generally, in the gill "non-interactive" effects occurred with the lowest Cu concentration while "interactions" exist for the mixture with the highest Cu concentrations. In the digestive gland, "interactions" and "no interaction" effects occurred in all the binary mixtures. Complex contaminant mixtures interact differently based on target tissue which may lead to an imbalance in the mussels health status.
Collapse
Affiliation(s)
- V L Maria
- University of Algarve & CIMA, 8005-139 Faro, Portugal
| | | |
Collapse
|
26
|
Fonseca VF, França S, Serafim A, Company R, Lopes B, Bebianno MJ, Cabral HN. Multi-biomarker responses to estuarine habitat contamination in three fish species: Dicentrarchus labrax, Solea senegalensis and Pomatoschistus microps. Aquat Toxicol 2011; 102:216-27. [PMID: 21356184 DOI: 10.1016/j.aquatox.2011.01.018] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2010] [Revised: 01/04/2011] [Accepted: 01/28/2011] [Indexed: 05/11/2023]
Abstract
Several biomarker responses were determined in three fish species, Dicentrarchus labrax, Solea senegalensis and Pomatoschistus microps, from two estuaries of the Portuguese coast, Ria de Aveiro and Tejo. Both estuaries have significant anthropogenic influences from multiple sources (industrial, agricultural and shipping activities), which was evident from sediment chemical characterization concerning metal (copper, zinc, nickel, lead and chromium) and polycyclic aromatic hydrocarbon (PAH) concentrations. Spatial variability in fish responses was observed across species for most biomarkers of exposure [the activities of superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), ethoxyresorufin O-deethylase (EROD) and glutathione S-transferase (GST), and metallothionein concentrations (MT)] and effect biomarkers [lipid peroxidation (LPO), RNA to DNA ratio (R:D), protein and lipid content]. In general, the interspecific differences in biomarker responses were greater than the spatial differences, due to differences in the behavior and habitat use of the species. Nevertheless, similarities were also observed considering both chemical load and biomarker responses. In highly polluted sites fish showed in general a significant antioxidant enzyme induction, associated with decreased R:D values, while fish from the least impacted site had little enzyme induction and better condition indices (high R:D and low LPO values). EROD activity was also higher for all species in the Tejo than Ria de Aveiro estuary, despite the generally higher total PAH measured in Ria de Aveiro, most likely due to a higher proportion of 4 and 6-ring PAHs, considered more toxic than low molecular weight PAHs, in the Tejo. In conclusion, this multi-biomarker approach considering multiple species provided improved understanding of the diverse responses and effects of exposure to contaminants and the effective risk it poses for different fish species.
Collapse
Affiliation(s)
- V F Fonseca
- Centro de Oceanografia, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, Portugal.
| | | | | | | | | | | | | |
Collapse
|
27
|
Company R, Serafim A, Lopes B, Cravo A, Kalman J, Riba I, DelValls TA, Blasco J, Delgado J, Sarmiento AM, Nieto JM, Shepherd TJ, Nowell G, Bebianno MJ. Source and impact of lead contamination on δ-aminolevulinic acid dehydratase activity in several marine bivalve species along the Gulf of Cadiz. Aquat Toxicol 2011; 101:146-154. [PMID: 20965582 DOI: 10.1016/j.aquatox.2010.09.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2010] [Revised: 09/17/2010] [Accepted: 09/21/2010] [Indexed: 05/30/2023]
Abstract
Coastal areas and estuaries are particularly sensitive to metal contamination from anthropogenic sources and in the last few decades the study of space-time distribution and variation of metals has been extensively researched. The Gulf of Cadiz is no exception, with several rivers draining one of the largest concentrations of sulphide deposits in the world, the Iberian Pyrite Belt (IPB). Of these rivers, the Guadiana, one of the most important in the Iberian Peninsula, together with smaller rivers like the Tinto and Odiel, delivers a very high metal load to the adjacent coastal areas. The purpose of this work was to study the source and impact of lead (Pb) drained from historical or active mining areas in the IPB on the activity of a Pb inhibited enzyme (δ-aminolevulinic acid dehydratase, ALAD) in several bivalve species along the Gulf of Cadiz. Seven marine species (Chamelea gallina, Mactra corallina, Donax trunculus, Cerastoderma edule, Mytilus galloprovincialis, Scrobicularia plana and Crassostrea angulata) were collected at 12 sites from Mazagón, near the mouth of the rivers Tinto and Odiel (Spain), to Cacela Velha (Ria Formosa lagoon system, Portugal). Lead concentrations, ALAD activity and lead isotope ratios ((206)Pb/(204)Pb, (207)Pb/(204)Pb and (208)Pb/(204)Pb) were determined in the whole soft tissues. The highest Pb concentrations were determined in S. plana (3.50±1.09 μg g(-1) Pb d.w.) and D. trunculus (1.95±0.10 μg g(-1) Pb d.w.), while M. galloprovincialis and C. angulata showed the lowest Pb levels (<0.38 μg g(-1) Pb d.w.). In general, ALAD activity is negatively correlated with total Pb concentration. However this relationship is species dependent (e.g. linear for C. gallina ALAD=-0.36[Pb]+0.79; r=0.837; or exponential for M. galloprovincialis ALAD=2.48e(-8.3[Pb]); r=0.911). This indicates that ALAD activity has considerable potential as a biomarker of Pb and moreover, in marine bivalve species with different feeding habits. Lead isotope data showed significant seasonal and spatial changes in bivalve isotopic composition reflecting seasonal and geographic differences in bioaccumulation. Within the study area, Pb can be modelled as a mixing between geogenic Pb and mine-related, discharges of Pb from the IPB. For some sites at the mouth of the Guadiana River, the bivalves show contamination from other anthropogenic sources, such as leaded boat/aviation fuel and/or leaded paint. Finally, the study demonstrates convincingly the need to consider species-specific variation when using bivalve ALAD activity as a biomarker for Pb.
Collapse
Affiliation(s)
- R Company
- CIMA, University of Algarve, Campus de Gambelas, Faro, Portugal
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
28
|
Gonzalez-Rey M, Lau TC, Gomes T, Maria VL, Bebianno MJ, Wu R. Comparison of metal accumulation between 'Artificial Mussel' and natural mussels (Mytilus galloprovincialis) in marine environments. Mar Pollut Bull 2011; 63:149-153. [PMID: 21237472 DOI: 10.1016/j.marpolbul.2010.12.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2010] [Revised: 11/26/2010] [Accepted: 12/05/2010] [Indexed: 05/30/2023]
Abstract
The passive sampler called 'Artificial Mussel' (AM) developed by Wu et al. (2007) can provide a time-integrated estimate of metal concentrations in the marine environment, and offers a potential device to assess and compare metal concentration in different marine environments worldwide. The aim of this study was to compare metal accumulation on AM and natural mussel Mytilus galloprovincialis at three sites with different metal loads along the Portuguese coast for four months. M. galloprovincialis were placed in cages alongside AMs at each site. Samples were collected monthly and Cd, Cr, Cu, Pb, and Zn concentrations in whole soft tissues and AMs compared. For both Cu and Cd, the results were similar between AMs and natural mussels. Higher concentrations of Zn were observed in natural mussels, whereas the inverse was shown for Pb (about 10-fold higher). Our results showed that AMs are promising tools for assessing metal concentrations in marine environments.
Collapse
Affiliation(s)
- M Gonzalez-Rey
- CIMA, Centre of Marine and Environmental Research, Campus de Gambelas, Faculty of Science and Technology, University of Algarve, Faro, Portugal
| | | | | | | | | | | |
Collapse
|
29
|
Oliveira M, Maria VL, Ahmad I, Teles M, Serafim A, Bebianno MJ, Pacheco M, Santos MA. Golden grey mullet and sea bass oxidative DNA damage and clastogenic/aneugenic responses in a contaminated coastal lagoon. Ecotoxicol Environ Saf 2010; 73:1907-1913. [PMID: 20825987 DOI: 10.1016/j.ecoenv.2010.07.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2009] [Revised: 06/30/2010] [Accepted: 07/04/2010] [Indexed: 05/29/2023]
Abstract
Several xenobiotics or their metabolites have redox-cycling properties and potential to induce oxidative stress and DNA damage. The current work aimed to study, under environmental conditions, oxidative DNA damage (8-hydroxy-2'-deoxyguanosine (8-OHdG)) and its association with chromosomal damage measured as erythrocytic nuclear abnormalities (ENAs), in Liza aurata and Dicentrarchus labrax, caught at a costal lagoon (Ria de Aveiro, Portugal) having sites with different contamination profiles. The quantified parameters were also used to assess the lagoon's environmental status. Five critical sites were assessed comparing to a reference site. L. aurata displayed higher 8-OHdG levels and ENAs frequency, respectively, at Laranjo and Vagos. D. labrax 8-OHdG levels were higher at the sites where quantification was possible whereas no differences were found in terms of ENAs. No correlation was found in both species between 8-OHdG and ENAs. Despite no direct linkage between the two biomarkers was found, this study demonstrates species and site dependent genotoxic responses.
Collapse
Affiliation(s)
- M Oliveira
- CESAM & Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal.
| | | | | | | | | | | | | | | |
Collapse
|
30
|
Serafim A, Bebianno MJ. Effect of a polymetallic mixture on metal accumulation and metallothionein response in the clam Ruditapes decussatus. Aquat Toxicol 2010; 99:370-378. [PMID: 20557954 DOI: 10.1016/j.aquatox.2010.05.016] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2010] [Revised: 05/20/2010] [Accepted: 05/24/2010] [Indexed: 05/29/2023]
Abstract
The toxic effects of metals are related to changes in natural physiological and biochemical processes in organisms, which are not easily detected. Marine invertebrates developed strategies to survive in the presence of toxic metal levels, by the removal of these compounds from the soluble fraction of the cell through different processes, including the synthesis of metallothionein (MT). To better understand the effect of Cd, Cu and Zn in MT response it is important to consider that in their natural environment these metals are normally mixed. The exposure to a metal mixture result in toxicological interactions that produce different biological responses when compared to the effects of a single metal exposure. The aim of this study was to assess metal accumulation and MT response in different tissues of the clam Ruditapes decussatus exposed to a mixture of sublethal Cd, Cu and Zn concentrations. Kinetic models were applied to determine metal uptake and loss to better predict and understand the detoxification mechanisms in this species. The kinetic model showed that the effect of this polymetallic exposure compared to a single exposure to these metals caused different metal uptake and loss rates in several tissues. Moreover, the exposure of R. decussatus to a polymetallic mixture caused an increase in MT induction compared to a single metal exposure. This is probably related to the interaction between the different metals and their different affinity to this protein. Metal interactions within aquatic organisms are very important in MT synthesis and the effect of polymetallic mixtures in the environment must be taken into account in field studies.
Collapse
Affiliation(s)
- A Serafim
- CIMA, Center of Marine and Environmental Resaearch, University of Algarve, Campus de Gambelas, 8005-139 Faro, Portugal
| | | |
Collapse
|
31
|
Oliveira M, Ahmad I, Maria VL, Serafim A, Bebianno MJ, Pacheco M, Santos MA. Hepatic metallothionein concentrations in the golden grey mullet (Liza aurata) - Relationship with environmental metal concentrations in a metal-contaminated coastal system in Portugal. Mar Environ Res 2010; 69:227-233. [PMID: 19913292 DOI: 10.1016/j.marenvres.2009.10.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2009] [Revised: 10/04/2009] [Accepted: 10/12/2009] [Indexed: 05/28/2023]
Abstract
This field survey was designed to assess the environmental metal contamination status of Ria de Aveiro (Portugal). To achieve that goal, the concentrations of Cd, Hg, Cu and Zn in the sediments and water were assessed and Liza aurata hepatic metallothionein (MT) determined. The relationships between MT and environmental metal concentrations and hydrological factors were examined. Results revealed a wide distribution of metals both in water and sediments throughout the lagoon, mainly at Rio Novo do Principe (RIO) and Laranjo (LAR), at concentrations that may affect biota. MT concentrations were higher at the sites with high metal content (RIO and LAR). A significant positive correlation was found between MT and Cd in the sediments as well as with MT and Hg and Cu in the water. Moreover, a negative correlation between MT and salinity was found. Thus, the current data support MT use as a biomarker of metal exposure emphasizing the importance of hydrological parameters in its concentrations. Results suggest the continued monitoring of this lagoon system.
Collapse
Affiliation(s)
- M Oliveira
- CESAM & Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal.
| | | | | | | | | | | | | |
Collapse
|
32
|
Azevedo JS, Serafim A, Company R, Braga ES, Fávaro DI, Bebianno MJ. Biomarkers of exposure to metal contamination and lipid peroxidation in the benthic fish Cathorops spixii from two estuaries in South America, Brazil. Ecotoxicology 2009; 18:1001-1010. [PMID: 19603268 DOI: 10.1007/s10646-009-0370-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2009] [Accepted: 06/24/2009] [Indexed: 05/28/2023]
Abstract
Biomarkers as lipid peroxidation, metallothionein and delta-aminolevulinic acid dehydratase were determined in Cathorops spixii to compare the biological responses of this fish from estuaries with distinct anthropogenic influence. Three areas were selected in two estuaries in accordance with the levels of contamination for the polluted (Santos/São Vicente) and with the hydrodynamic characteristics for the non-polluted (Cananéia) estuary. Water characteristics and mercury levels in C. spixii confirmed a high human influence in the polluted system. In general, the biomarkers showed differences between the estuaries, suggesting disturbances in the specific cell mechanisms due to the presence of multiple xenobiotics in the contaminated system. Therefore, these biomarkers are recommended to promote more accurate information about the exposure to pollutants. Additionally, the study of the effect of the multiple xenobiotics on resident species such as the benthic fish C. spixii can favor a better assessment of the environmental quality of these systems.
Collapse
Affiliation(s)
- J S Azevedo
- Instituto Oceanográfico, Universidade de São Paulo, Praça do Oceanográfico, 191, Sao Paulo, Brazil.
| | | | | | | | | | | |
Collapse
|
33
|
Gomes T, Gonzalez-Rey M, Bebianno MJ. Incidence of intersex in male clams Scrobicularia plana in the Guadiana Estuary (Portugal). Ecotoxicology 2009; 18:1104-1109. [PMID: 19633956 DOI: 10.1007/s10646-009-0359-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2009] [Accepted: 06/23/2009] [Indexed: 05/28/2023]
Abstract
Endocrine disrupting chemicals (EDCs) known to be present in the marine environment, have great potential to influence reproductive status in aquatic organisms. A widespread incidence of intersex linked with EDCs exposure has been reported in molluscs and fish species. The species Scrobicularia plana is inherently gonochoristic; nonetheless, the feminisation of male clams was described in estuaries from the United Kingdom. Thus, this study reports the presence of oocytes in the testis of male clams of S. plana collected in the Guadiana River (Portugal). Samples were collected between June and September (2007), and gonad tissue analysed by light microscopy. Intersex with several degrees of intensity was detected during the first three months of sampling, in which the percentage of male clams affected varied between 5.9, 58.3 and 71.4%. Little is known about the causes of intersex in S. plana, being the urban, industrial and agricultural discharges possible major sources of induction. In the Guadiana River, the presence of several EDCs may be directly linked to the incidence of the intersex condition detected in Scrobicularia plana.
Collapse
Affiliation(s)
- T Gomes
- CIMA, Faculty of Marine and Environmental Sciences, University of Algarve, Campus de Gambelas, 8005-135, Faro, Portugal
| | | | | |
Collapse
|
34
|
Maria VL, Santos MA, Bebianno MJ. Biomarkers of damage and protection in Mytilus galloprovincialis cross transplanted in Ria Formosa Lagoon (Portugal). Ecotoxicology 2009; 18:1018-1028. [PMID: 19609672 DOI: 10.1007/s10646-009-0361-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2009] [Accepted: 06/23/2009] [Indexed: 05/28/2023]
Abstract
The study was carried out to check the water contamination in two sites of Ria Formosa Lagoon by assessing the damage responses versus protection in the gills and digestive gland (Dg) of mussels--Mytilus galloprovincialis Lmk. Damage was assessed as DNA integrity and lipid peroxidation (LPO) while protection was evaluated by measuring catalase (CAT), glutathione peroxidase (GPx), glutathione reductase (GR), glutathione S-transferase (GST), total glutathione (GSHt) and metallothioneins (MT). Mussels were collected in March of 2007 at Ramalhete (R) as a reference site and Faro port (F) as harbour area. Cross transplantation was from R to F and vice versa performed during 0, 3 and 6 days. Gills DNA integrity decrease was observed in mussels transplanted to F (3 days) and R (6 days). Highest Dg LPO was found in mussels sampled at R. Elevated gills CAT, GPx, GR and GST was observed in mussels transplanted to F. Dg GSHt decreased in mussels transplanted to F. Gills and Dg mussels MT increased in mussels transplanted to R. M. galloprovincialis responses show their capability as early warning signals of the contaminants presence. The adopted approach, considering simultaneously protection responses and damaging effects, also revealed its usefulness on the pollution assessment.
Collapse
Affiliation(s)
- V L Maria
- CIMA & Faculty of Marine and Environmental Sciences, University of Algarve, 8005-139, Faro, Portugal
| | | | | |
Collapse
|
35
|
Maria VL, Ahmad I, Oliveira M, Serafim A, Bebianno MJ, Pacheco M, Santos MA. Wild juvenile Dicentrarchus labrax L. liver antioxidant and damage responses at Aveiro Lagoon, Portugal. Ecotoxicol Environ Saf 2009; 72:1861-70. [PMID: 19577807 DOI: 10.1016/j.ecoenv.2009.06.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2008] [Revised: 05/13/2009] [Accepted: 06/09/2009] [Indexed: 05/25/2023]
Abstract
The Aveiro Lagoon, at the north-western coast of Portugal, has been under considerable anthropogenic pressure for the last 5 decades. In order to perform an adequate survey of the effects induced by the contaminants in presence, wild juveniles Dicentrarchus labrax (sea bass) were selected. Thus, sea bass was captured at five sites: Torreira (TOR, as reference site), Gafanha (GAF), Rio Novo Príncipe (RIO), Laranjo (LAR) and Vagos (VAG) in autumn 2005. Liver defence responses such as catalase (CAT), glutathione peroxidase (GPx), glutathione reductase (GR), glutathione S-transferase (GST), total glutathione (GSHt), total non-protein thiols (NP-SH) and metallothioneins (MT) were measured. Liver damage was determined as lipid peroxidation (LPO) and DNA integrity loss. RIO, LAR and VAG presented lower CAT, GR, GST activities and NP-SH and GSHt depletion in comparison to TOR. VAG and LAR showed higher GPx activity when compared to TOR. The highest MT level was found at GAF and VAG. The NP-SH and DNA integrity decreased at GAF compared to TOR. This field study demonstrated that not only antioxidant induction but also inhibitory responses must be considered as a signal of contamination.
Collapse
Affiliation(s)
- V L Maria
- CESAM & Biology Department of Aveiro University, 3810-193 Aveiro, Portugal.
| | | | | | | | | | | | | |
Collapse
|
36
|
Maria VL, Santos MA, Bebianno MJ. Contaminant effects in shore crabs (Carcinus maenas) from Ria Formosa Lagoon. Comp Biochem Physiol C Toxicol Pharmacol 2009; 150:196-208. [PMID: 19426829 DOI: 10.1016/j.cbpc.2009.04.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2009] [Revised: 04/22/2009] [Accepted: 04/22/2009] [Indexed: 10/20/2022]
Abstract
Defence and damage biomarkers signals were studied in female and male shore crabs Carcinus maenas transplanted between two sites at Ria Formosa Lagoon (South of Portugal). The cross transplantation occurred during 6 days at a hypothetical reference site (Ramalhete), and a contaminated site (Olhão). DNA unwinding technique was used for DNA integrity measurement. General enzymatic antioxidant responses in gills and hepatopancreas (catalase and gills glutathione peroxidase activities increase) showed that cross transplanted crabs (female and male) are suffering from pro-oxidant challenges at the Olhão site. Gills and hepatopancreas glutathione-S-transferase were reduced in both gender crabs transplanted from Ramalhete to Olhão. Metallothioneins induction occurred in crabs transplanted from Ramalhete to Olhão (contaminated by metals and polycyclic aromatic hydrocarbons (PAHs)). However metallothionein differences were also observed towards gender and organ specificities. High gills lipid peroxidation exist in male crabs transplanted from Ramalhete to Olhão, while in females it was the opposite. In both gender crabs from the Olhão site, gills DNA integrity decreased compared to the Ramalhete feral crabs. Moreover, hepatopancreas DNA integrity decreased in male crabs transplanted from Olhão to Ramalhete site which may be related to the environmental conditions (lower contamination levels) revealing the difficulty of selection of reference sites in field studies. Data demonstrated that female and male C. maenas antioxidant defences and damage biomarkers were sensitive to the mixture of contaminants present in these sites as well as good indicators of general stress.
Collapse
Affiliation(s)
- V L Maria
- CIMA, Faculty of Marine and Environmental Sciences, University of Algarve, 8005-139 Faro, Portugal.
| | | | | |
Collapse
|
37
|
Serafim A, Bebianno MJ. Metallothionein role in the kinetic model of copper accumulation and elimination in the clam Ruditapes decussatus. Environ Res 2009; 109:390-399. [PMID: 19345346 DOI: 10.1016/j.envres.2009.03.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2008] [Revised: 02/20/2009] [Accepted: 03/03/2009] [Indexed: 05/27/2023]
Abstract
In order to clarify the role of metallothioneins (MT) in copper (Cu) toxicity, this work aimed to assess the involvement of this protein in the accumulation and elimination strategies of Cu in the clam Ruditapes decussatus exposed to two sublethal concentrations (25 and 50 microgCul(-1)). The behaviour of MT in three different tissues of clams during the accumulation and depuration processes was also followed by gel-filtration chromatography to assess if Cu was bound to MT or to other cytosolic components. The 96 h LC50 for water-borne copper was 715 microgL(-1) in R. decussatus. The Cu accumulation pattern was dependent on Cu exposure concentrations. In clams exposed to 25 microgl(-1), total Cu accumulation in the three tissues increased linearly during the exposure period, while in those exposed to 50 microgl(-1) it followed the first order kinetic model. The greatest amount of Cu accumulated in all tissues is associated to the low molecular weight cytosolic fraction (>50%). The chromatographic assay indicated that Cu in the cytosolic fraction is bound to MT and MT levels increase with the increase of Cu exposure confirming the binding affinity of Cu to MT in all tissues. However, a smaller percentage of Cu seems to be bond to other ligands, such as GSH. Copper was exponentially eliminated (only studied in clams exposed to 25 microgl(-1)) and the estimated half-life was tissue dependent (9, 5 and 14 days for the gills, digestive gland and remaining tissues, respectively). Copper bound to the thermostable compounds was eliminated more quickly (t(1/2)=4-7 days) in all tissues than those bound to the thermolabile compounds (t(1/2)=7-18 days). Interestingly, MT is rapidly degraded (t(1/2)=7 and 18 days), suggesting that this protein is actively involved in the elimination of this metal, through the Cu-MT complex since MT and Cu are turning over simultaneously. Therefore, when Cu exposure is low, the clam can cope efficiently with the excess of Cu levels by increasing MT induction as well as rapidly eliminating this metal via the MT-Cu complex. Copper toxicity in the clam R. decussatus is associated to the limited capacity of MT induction at higher and environmental unrealistic Cu exposures especially in the gills and remaining tissues.
Collapse
Affiliation(s)
- A Serafim
- CIMA, University of Algarve, Campus de Gambelas, Faro 8005-139, Portugal.
| | | |
Collapse
|
38
|
Oliveira M, Maria VL, Ahmad I, Serafim A, Bebianno MJ, Pacheco M, Santos MA. Contamination assessment of a coastal lagoon (Ria de Aveiro, Portugal) using defence and damage biochemical indicators in gill of Liza aurata--an integrated biomarker approach. Environ Pollut 2009; 157:959-967. [PMID: 19042064 DOI: 10.1016/j.envpol.2008.10.019] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2008] [Revised: 10/09/2008] [Accepted: 10/21/2008] [Indexed: 05/27/2023]
Abstract
Fish gill importance in toxicants uptake, bioconcentration and excretion allied to meagre knowledge on branchial damage/protection responses substantiate this study. Five critical sites in Ria de Aveiro (Portugal) were assessed in comparison with a reference site (Torreira), focusing on Liza aurata gill antioxidant defences versus damage (oxidative and genetic). Only in Barra fish displayed damage (lipid peroxidation) though no differences were found in antioxidants. In all other sites, except Rio, antioxidant alterations were found. Thus, fish from Gafanha, Laranjo and Vagos showed higher total glutathione, glutathione peroxidase and catalase. Higher glutathione reductase and glutathione S-transferase activity was also found in the first and the last sites, respectively. In Laranjo, metallothionein levels were higher though lower in Gafanha and Vagos. In general, damage was not accompanied by defences weakening confirming that predicting damage based on antioxidants depletion is not straightforward. The integrated biomarker response index ranked sites as: Gafanha>Barra>Laranjo>Vagos>Rio>Torreira.
Collapse
Affiliation(s)
- M Oliveira
- CESAM & Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal
| | | | | | | | | | | | | |
Collapse
|
39
|
Ahmad I, Maria VL, Oliveira M, Serafim A, Bebianno MJ, Pacheco M, Santos MA. DNA damage and lipid peroxidation vs. protection responses in the gill of Dicentrarchus labrax L. from a contaminated coastal lagoon (Ria de Aveiro, Portugal). Sci Total Environ 2008; 406:298-307. [PMID: 18644616 DOI: 10.1016/j.scitotenv.2008.06.027] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2008] [Revised: 06/12/2008] [Accepted: 06/16/2008] [Indexed: 05/26/2023]
Abstract
The present research work aimed to investigate the damage vs. protection responses in gill of European sea bass (Dicentrarchus labrax) captured at a polluted coastal lagoon, Ria de Aveiro (Portugal), as a tool to evaluate the human impacts on environmental health. Damage was assessed as DNA strand breakage and lipid peroxidation (LPO) whereas protection was evaluated by measuring catalase (CAT), glutathione peroxidase (GPX), glutathione reductase (GR), glutathione S-transferase (GST), total glutathione (GSHt), thiols and metallothioneins (MT). Fish were caught at five locations: Gafanha (GAF), Rio Novo do Príncipe (RIO), Laranjo (LAR) and Vagos (VAG) presenting each a different recognized source of contamination, and Torreira (TOR), assumed as reference site. Among the surveyed sites, gill damage was observed only at GAF, as measured by DNA integrity loss and LPO increase. An overall induction in enzymatic antioxidant protection was perceptible in fish from GAF and VAG, expressed as higher GPX, GR and GST activities. In addition, LAR fish showed elevated GST and CAT activities. Thiols content was higher in all study sites irrespective to the pollution spectrum, whereas GSHt increase was only observed at GAF and VAG. The highest MT level was detected in fish from VAG and the lowest level from RIO suggesting a low contamination degree on this particular site. Globally, the results expressed site-specific response patterns, signalling two critical areas - GAF and VAG. Additionally, a joint analysis (damage vs. protection) allowed the following ordering of surveyed sites according to the contamination degree and risk to fish health; GAF>VAG>LAR>RIO>TOR. D. labrax gill responses demonstrated their efficacy as early warning signals of the contaminants presence. Moreover, the adopted approach, considering simultaneously protection responses and damaging effects, also revealed its usefulness on the pollution extent assessment.
Collapse
Affiliation(s)
- I Ahmad
- CESAM & Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal.
| | | | | | | | | | | | | |
Collapse
|
40
|
Company R, Serafim A, Lopes B, Cravo A, Shepherd TJ, Pearson G, Bebianno MJ. Using biochemical and isotope geochemistry to understand the environmental and public health implications of lead pollution in the lower Guadiana River, Iberia: a freshwater bivalve study. Sci Total Environ 2008; 405:109-119. [PMID: 18722647 DOI: 10.1016/j.scitotenv.2008.07.016] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2008] [Revised: 07/06/2008] [Accepted: 07/12/2008] [Indexed: 05/26/2023]
Abstract
Lead is a natural component of aquatic ecosystems with no known biological role and is highly toxic. Its toxicity stems from its ability to mimic biologically important metals and to produce membrane damage through lipid peroxidation (LPO). Most lead poisoning symptoms are thought to occur by interfering with an essential enzyme, delta-aminolevulinic acid dehydratase (ALAD), the activity of which is markedly inhibited by lead. The purpose of this work was to study the levels and effects of lead pollution (responses of ALAD and oxidative stress biomarker LPO) in the freshwater bivalve Corbicula fluminea along the lower Guadiana River (Portugal and Spain); a major river system impacted by historic mining pollution and more recent anthropogenic inputs. The results show that the enzymatic activity of ALAD is negatively correlated with the total Pb concentration of the whole tissue suggesting that ALAD has considerable potential as a biomarker of lead exposure in C. fluminea. To identify the sources of lead to which bivalves have been exposed, high precision (206)Pb/(204)Pb, (207)Pb/(204)Pb, (208)Pb/(204)/Pb ratios for C. fluminea confirm that historical mining activities in the Iberian Pyrite Belt are the dominant source of lead pollution in the lower Guadiana River. The isotope patterns however exhibit marked seasonal and geographic variation in response to rainfall and river water management. Locally, other anthropogenic sources of lead have been detected in C. fluminea close to population centres, thus adding to its versatility as a freshwater bio-indicator. Overall, the study highlights the value of natural ecosystems as monitors of water quality and their importance for public health assessment and surveillance.
Collapse
Affiliation(s)
- R Company
- CIMA, Faculty of Marine and Environmental Sciences, University of Algarve, Campus de Gambelas, Faro, Portugal
| | | | | | | | | | | | | |
Collapse
|
41
|
Abstract
The clam Ruditapes decussatus is distributed worldwide and due to its ecological and economical interest has been proposed as a bioindicator in areas where mussels are not available. The accumulation of several anthropogenic compounds in their tissues suggests that they possess mechanisms that allow them to cope with the toxic effects of these contaminants. Besides pollutant uptake, the use of biomarkers is pointed out in this paper since it is a promising approach to monitor the effect of these contaminants in the marine environment. Biomarkers complement the information of the direct chemical characterization of different types of contaminants. Therefore, the aim of this paper is to review the role of several biomarkers: (metallothioneins (MT), superoxide dismutase (SOD), catalase (CAT), glutathione peroxidases (GPx) (total and selenium-dependent), lipid peroxidation (measured as MDA, one of the final products of lipid peroxidation), glutathione S-transferase (GST) and acetylcholinesterase (AChE), measured in different tissues of the clam R. decussatus, in laboratory conditions and under various environmental stresses, in two ecosystems (Ria Formosa lagoon- Portugal) and Bizerta lagoon (Tunisia) in a perspective of a multibiomarker approach to assess environmental changes. Experiment and field studies are in good agreement since MT levels, especially in the gills, the first target tissue of these contaminants, can be used as biomarker of exposure to Cd. GPx and MDA may also be determined in this respect. AChE activity is inhibited by pesticide and, to a less extent, by metal exposure in the gills and whole soft body of clams. However, the induction of GST isoforms experimentally demonstrated is not observed in the field because only global GST activity was determined. The whole set of results opens new research perspectives for the use of this species to assess the effect of mixtures of pollutants in the aquatic environment.
Collapse
Affiliation(s)
- M J Bebianno
- CIMA, Faculty of Marine and Environmental Sciences, University of Algarve, Campus de Gambelas, 8000 Faro, Portugal.
| | | | | | | | | | | | | |
Collapse
|
42
|
Peixoto NC, Rocha LC, Moraes DP, Bebianno MJ, Dressler VL, Flores EMM, Pereira ME. Changes in levels of essential elements in suckling rats exposed to zinc and mercury. Chemosphere 2008; 72:1327-1332. [PMID: 18547602 DOI: 10.1016/j.chemosphere.2008.04.027] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2007] [Revised: 03/26/2008] [Accepted: 04/10/2008] [Indexed: 05/26/2023]
Abstract
The effect of mercury and its interaction with zinc on the content of essential metals in tissues from neonate rats was investigated. Three-day-old Wistar rats were treated with saline or 27 mg kg(-1)d(-1) ZnCl2 (s.c.) for five consecutive days. From the 8th to the 12th day of life, the rats received one daily dose of saline or 5.0 mg kg(-1) HgCl2 (s.c). Twenty-four hours after the last injection liver, kidneys and blood were collected for metal quantification. The HgCl(2) exposure induced alterations on metal levels, such as increase of Fe, Hg and Zn in liver, decrease of Fe and Mg and increase of Cu and Hg contents in kidneys. The Hg exposure also increased Hg levels in the blood. The treatment with ZnCl2, administered previously to HgCl2, partially prevented the increase of Fe in the liver, and not only prevented the decrease of renal Mg but also increased it to levels higher than those found in control group. The Zn-Hg rats also presented higher renal Cu levels, and showed partially lower blood and hepatic Hg levels and higher renal Hg levels. The pre-administration of Zn caused no severe alterations in levels of essential metals (Cu, Fe, Mg and Mn). In short, Zn appears to be an alternative treatment of Hg poisoning in young animals in comparison to chelating drugs since these have low metal selectivity.
Collapse
Affiliation(s)
- N C Peixoto
- Programa de Pós-Graduação em Bioquímica Toxicológica, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Campus Universitário, Camobi, Santa Maria, RS, Brazil.
| | | | | | | | | | | | | |
Collapse
|
43
|
Oliveira M, Serafim A, Bebianno MJ, Pacheco M, Santos MA. European eel (Anguilla anguilla L.) metallothionein, endocrine, metabolic and genotoxic responses to copper exposure. Ecotoxicol Environ Saf 2008; 70:20-26. [PMID: 18192012 DOI: 10.1016/j.ecoenv.2007.10.034] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2007] [Revised: 09/20/2007] [Accepted: 10/13/2007] [Indexed: 05/25/2023]
Abstract
This study investigated Anguilla anguilla (European eel) physiological and genotoxic responses to copper (Cu) and their relation with metallothionein (MT) protection. Eels were exposed during 7 days to Cu 0.2 micromol/L. MT induction was assessed in gill and liver, revealing significant response only in liver. Endocrine responses displayed a plasma free triiodothyronine (T3) and cortisol significant decrease, though the thyroid-stimulating hormone (TSH) and free thyroxine (T4) concentrations were unaltered. A significant plasma glucose increase was observed whereas lactate was significantly decreased. Despite the absence of DNA integrity decrease in blood, gill, liver and kidney, erythrocytic nuclear abnormalities (ENA) frequency significantly increased in Cu exposed group. MT induction was insufficient to prevent endocrine and metabolic alterations as well as genotoxicity/clastogenicity in blood. However, MT protection was evident in liver by preventing DNA integrity loss. Globally, it was demonstrated that Cu environmentally realistic levels may pose a serious ecological risk to fish.
Collapse
Affiliation(s)
- M Oliveira
- CESAM & Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal.
| | | | | | | | | |
Collapse
|
44
|
Cravo A, Foster P, Almeida C, Bebianno MJ, Company R. Metal concentrations in the shell of Bathymodiolus azoricus from contrasting hydrothermal vent fields on the Mid-Atlantic Ridge. Mar Environ Res 2008; 65:338-348. [PMID: 18295327 DOI: 10.1016/j.marenvres.2007.12.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2007] [Revised: 12/18/2007] [Accepted: 12/28/2007] [Indexed: 05/25/2023]
Abstract
Specimens of Bathymodiolus azoricus were sampled along the Mid-Atlantic Ridge at the Menez Gwen, Lucky Strike and Rainbow hydrothermal fields. Individual shells (n = 51), through the weight range 0.62 to 15.70 g, were analyzed for their magnesium, strontium, iron, manganese, copper, zinc and cadmium concentrations. Amongst the marine molluscs the shell of B. azoricus is confirmed as being particularly impoverished in strontium (mean 943 microg g(-1)). Trace metal concentrations in the shells decreased in the order Fe> Mn> Zn> Cu> Cd. Despite originating from trace metal rich environments mean concentrations were low (37.9, 13.2, 10.7, 1.1 and 0.7 microg g(-1), respectively). Irrespective of geographical origin magnesium, strontium and copper concentrations were primarily dictated by shell weight. In contrast cadmium concentrations were elevated in shells from the Rainbow field and ambient seawater chemistry imparted site specific chemical fingerprints to the shells with respect to the iron to manganese ratio.
Collapse
Affiliation(s)
- A Cravo
- Centre of Marine and Environmental Research (CIMA), FCMA, University of Algarve, Campus de Gambelas, Portugal.
| | | | | | | | | |
Collapse
|
45
|
Serafim A, Lopes B, Company R, Ferreira AM, Bebianno MJ. Comparative petroleum hydrocarbons levels and biochemical responses in mussels from hydrothermal vents (Bathymodiolus azoricus) and coastal environments (Mytilus galloprovincialis). Mar Pollut Bull 2008; 57:529-537. [PMID: 18381218 DOI: 10.1016/j.marpolbul.2008.02.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2007] [Revised: 01/31/2008] [Accepted: 02/11/2008] [Indexed: 05/26/2023]
Abstract
Aliphatic hydrocarbons and PAHs in the whole soft tissues of Bathymodiolus azoricus from three Mid-Atlantic Ridge hydrothermal vents (Menez-Gwen, Lucky Strike and Rainbow), and Mytilus galloprovincialis from three contaminated coastal sites in South Portugal were analysed, and its effects on the digestive gland microsomes mixed-function oxygenase system (MFO) were assessed. Aliphatic hydrocarbons levels were present in the same magnitude in both coastal and hydrothermal environments, while the UCM (unresolved complex mixture) for coastal mussels were higher than in vent mussels. In general, significantly higher PAHs concentrations were found in coastal mussels, compared to B. azoricus where low molecular weight PAHs (2-3 rings) represented the majority of PAHs contrarily to what was observed in M. galloprovincialis. The MFO components were present in both mussel species, and were detected in vent mussels for the first time. However this system seems to have different roles in species from these contrasting environments. In coastal mussels MFO responded to hydrocarbon contamination while response in hydrothermal organisms appeared to be related mainly to endogenous factors.
Collapse
Affiliation(s)
- A Serafim
- CIMA, Faculty of Marine and Environmental Sciences, University of Algarve, Campus de Gambelas, Faro, Portugal.
| | | | | | | | | |
Collapse
|
46
|
Bebianno MJ, Santos C, Canário J, Gouveia N, Sena-Carvalho D, Vale C. Hg and metallothionein-like proteins in the black scabbardfish Aphanopus carbo. Food Chem Toxicol 2007; 45:1443-52. [PMID: 17368905 DOI: 10.1016/j.fct.2007.02.003] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2006] [Revised: 11/05/2006] [Accepted: 02/06/2007] [Indexed: 11/24/2022]
Abstract
Aphanopus carbo fishery is economically relevant in Portugal (Madeira Archipelago) since the 19th century and an important diet component of its inhabitants. However, Hg levels in this species are a cause of concern due to the insufficient knowledge of Hg subcellular distribution, accumulation and detoxification mechanisms. Hg concentrations (total and subcellular) and metallothionein-like proteins (MTs) were measured in the gills, muscle and liver of A. carbo of different size (50-150 cm) to assess Hg subcellular distribution and the role of MT in Hg binding. Total Hg concentrations in A. carbo decrease from liver to gills and increase exponentially with fish length in all tissues. Hg subcellular distribution in muscle and liver decreased from insoluble > high molecular weight proteins and heat-treated cytosol where MT occurs highlighting the role of the insoluble fraction in Hg distribution. In the gills, Hg was mainly in the soluble fraction except for 75-100 cm specimens, whose Hg distribution was similar between soluble and insoluble factions. The variation of MT with size is different from that of Hg. MT levels in the gills decrease with size/age and is unrelated with Hg concentrations. In the muscle although decreasing with size/age, MT is inversely proportional to Hg. In the liver, however, MT is directly proportional with size/age and to the Hg accumulated (total and HTC subcellular fraction) highlighting an age related change in these two parameters and the importance of MT in detoxifying Hg in this tissue. Due to Hg concentrations present in the muscle (used for human consumption) and liver (consumed mainly by fisherman) consumption of A. carbo should be taken with caution in a population with such an important seafood weekly intake.
Collapse
Affiliation(s)
- M J Bebianno
- CIMA, Universidade do Algarve, Campus de Gambelas, 8000-117 Faro, Portugal.
| | | | | | | | | | | |
Collapse
|
47
|
Cravo A, Foster P, Almeida C, Company R, Cosson RP, Bebianno MJ. Metals in the shell of Bathymodiolus azoricus from a hydrothermal vent site on the Mid-Atlantic Ridge. Environ Int 2007; 33:609-15. [PMID: 17291587 DOI: 10.1016/j.envint.2007.01.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2006] [Revised: 12/19/2006] [Accepted: 01/03/2007] [Indexed: 05/13/2023]
Abstract
Specimens of the mussel Bathymodiolus azoricus were collected from Menez Gwen, a relatively shallow (850 m) hydrothermal vent field on the Mid-Atlantic Ridge. Each bivalve shell (n = 21) was individually cleaned by selective chemical. The residual crystal matrix of each shell was individually analysed for the concentrations of the minor elements magnesium and strontium and the trace elements iron, manganese, copper and zinc. The chemical composition of the crystal matrix is unusual. B. azoricus is identified as a species having one of the most strontium impoverished shells amongst the marine molluscs. For a bimineral species the magnesium concentration is also extraordinary low. Despite originating from a trace metal rich environment; the metal concentrations in the shells were exceptionally low. Mean concentrations of iron, manganese, copper and zinc were 20.6, 3.7, 0.6 and 9.4 microg g(-1) respectively. Minor and trace element concentrations exhibited a marked intra-population variability. Copper concentrations increased and iron and zinc concentrations decreased with increasing shell weight. Due to its insensitivity to the high environmental levels of trace elements and the variability in intra-population concentrations induced by shell weight the crystal matrix of the shell of B. azoricus has little potential for use in environmental trace metal monitoring in areas contiguous to deep-sea hydrothermal vents.
Collapse
Affiliation(s)
- A Cravo
- Centre of Marine and Environmental Research (CIMA), FCMA, University of Algarve, Campus de Gambelas, 8005-139 Faro, Portugal.
| | | | | | | | | | | |
Collapse
|
48
|
Serafim A, Bebianno MJ. Involvement of metallothionein in Zn accumulation and elimination strategies in Ruditapes decussatus. Arch Environ Contam Toxicol 2007; 52:189-99. [PMID: 17165109 DOI: 10.1007/s00244-005-0258-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2005] [Accepted: 07/01/2006] [Indexed: 05/13/2023]
Abstract
The aim of this study was to identify the involvement of metallothionein (MT) in Zn accumulation and elimination strategies in different tissues (gills, digestive gland, and remaining tissues) of Ruditapes decussatus. Clams were exposed to two Zn concentrations (100 and 1000 microg/L) for 40 days, followed by a depuration period of 50 days. The accumulation and elimination processes were complemented by subcellular Zn distribution, to determine the affinity of this element for the different cellular partitions. Subsequently, the involvement of MT was followed. Zinc concentrations in the tissues of R. decussatus exposed to 100 microg/L was partially regulated, whereas in those exposed to 1000 microg/L, Zn was accumulated (exponentially and linearly) throughout the exposure period. The greatest amount of Zn is associated to the insoluble fraction; however, in the highest Zn exposure, approximately 30% is in the thermostable fraction, where MT occurs. Gel filtration chromatography confirmed that the Zn ions accumulated in this fraction were bound to MT. This protein is actively involved in the elimination of this metal, through the rapid degradation of the Zn-MT complex because MT and Zn are turning over simultaneously. Therefore, MT participates in Zn homeostasis in R. decussatus when Zn exposure is low. When Zn accumulation increases, the role of this protein changes from a constitutive function to the detoxification of the excess of Zn ions.
Collapse
Affiliation(s)
- A Serafim
- CIMA, Faculty of Marine and Environmental Sciences, University of Algarve, Campus de Gambelas, 8005-139 Faro, Portugal.
| | | |
Collapse
|
49
|
Coelho MR, Langston WJ, Bebianno MJ. Effect of TBT on Ruditapes decussatus juveniles. Chemosphere 2006; 63:1499-505. [PMID: 16289248 DOI: 10.1016/j.chemosphere.2005.09.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2005] [Revised: 08/25/2005] [Accepted: 09/26/2005] [Indexed: 05/05/2023]
Abstract
The effects of sublethal concentrations of tributyltin (TBT) on growth of juvenile clams Ruditapes decussatus were determined during exposure to TBT concentrations of 50, 100 and 250 ng l(-1) (as Sn) for a period up to two years. Length and weight of clams increased continuously in all treatments throughout the experimental period, and, overall, rates were not significantly influenced by TBT exposure, although final length and weight were inversely related to increasing TBT concentration. Juvenile R. decussatus therefore appear to be less sensitive to TBT than larval stages. Some juveniles exposed to TBT developed abnormal shell growth, laterally, changing the typical flattened shape of clams into a more "rounded" form. This characteristic was more visible in the anterior margins of valves than posteriorly, and mainly observed in clams exposed to TBT at 50 ng l(-1) (as Sn).
Collapse
Affiliation(s)
- M R Coelho
- CIMA, University of Algarve, Campus de Gambelas, 8000 Faro, Portugal
| | | | | |
Collapse
|
50
|
Bebianno MJ, Company R, Serafim A, Camus L, Cosson RP, Fiala-Médoni A. Antioxidant systems and lipid peroxidation in Bathymodiolus azoricus from Mid-Atlantic Ridge hydrothermal vent fields. Aquat Toxicol 2005; 75:354-73. [PMID: 16242792 DOI: 10.1016/j.aquatox.2005.08.013] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2004] [Revised: 08/23/2005] [Accepted: 08/24/2005] [Indexed: 05/05/2023]
Abstract
Enzymatic defenses involved in protection from oxygen radical damage were determined in gills and mantle of Bathymodiolus azoricus collected from three contrasting Mid-Atlantic Ridge (MAR) hydrothermal vent fields (Menez-Gwen, Lucky Strike and Rainbow). The activities of superoxide dismutase (SOD), catalase (CAT), glutathione peroxidases (GPx) (total and Se-dependent), and levels of total oxyradical scavenging capacity (TOSC), metallothioneins (MT) and lipid peroxidation (LPO) were determined in B. azoricus tissues and the impact of metal concentrations on these antioxidant systems and lipid peroxidation assessed. SOD, CAT, TOSC, MTs and LPO levels were higher in B. azoricus gills while glutathione peroxidases (total and Se-dependent) were higher in the mantle, and with the exception of CAT, were of the same order of magnitude as in other molluscs. TOSC levels from Menez-Gwen indicate that the vent environment at this site is less stressful and the formation of ROS in mussels is effectively counteracted by the antioxidant defense system. TOSC depletion indicates an elevated ROS production in molluscs at the other two vent sites. Cytosolic SOD, GPx and LPO were more relevant at Lucky Strike (Bairro Alto) where levels of essential (Cu and Zn) and toxic metals (Cd and Ag) were highest in the organisms. CAT activity and LPO were predominant at the Rainbow vent site, where an excess of Fe in mussel tissues and in vent fluids (the highest of all three vent sites) may have contributed to increased LPO. Therefore, three distinct pathways for antioxidant enzyme systems and LPO based on environmental metal speciation of MAR vent fields are proposed for Bathymodiolus gills. At Menez-Gwen, TOSC towards peroxyl and hydroxyl radicals and peroxynitrite are predominant, while at Lucky Strike cytosolic SOD activity and GPx are the main antioxidant mechanisms. Finally at Rainbow, catalase and lipid peroxidation are dominant, suggesting that resistance of mussels to metal toxicity at these vent fields decreases in the sequence Menez-Gwen > Lucky Strike and Rainbow.
Collapse
Affiliation(s)
- M J Bebianno
- CIMA, Faculty of Marine and Environmental Sciences, University of Algarve, Campus de Gambelas, 8000 Faro, Portugal.
| | | | | | | | | | | |
Collapse
|