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Morris JJ, Rose AL, Lu Z. Reactive oxygen species in the world ocean and their impacts on marine ecosystems. Redox Biol 2022; 52:102285. [PMID: 35364435 PMCID: PMC8972015 DOI: 10.1016/j.redox.2022.102285] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 03/07/2022] [Accepted: 03/10/2022] [Indexed: 11/17/2022] Open
Abstract
Reactive oxygen species (ROS) are omnipresent in the ocean, originating from both biological (e.g., unbalanced metabolism or stress) and non-biological processes (e.g. photooxidation of colored dissolved organic matter). ROS can directly affect the growth of marine organisms, and can also influence marine biogeochemistry, thus indirectly impacting the availability of nutrients and food sources. Microbial communities and evolution are shaped by marine ROS, and in turn microorganisms influence steady-state ROS concentrations by acting as the predominant sink for marine ROS. Through their interactions with trace metals and organic matter, ROS can enhance microbial growth, but ROS can also attack biological macromolecules, causing extensive modifications with deleterious results. Several biogeochemically important taxa are vulnerable to very low ROS concentrations within the ranges measured in situ, including the globally distributed marine cyanobacterium Prochlorococcus and ammonia-oxidizing archaea of the phylum Thaumarchaeota. Finally, climate change may increase the amount of ROS in the ocean, especially in the most productive surface layers. In this review, we explore the sources of ROS and their roles in the oceans, how the dynamics of ROS might change in the future, and how this change might impact the ecology and chemistry of the future ocean.
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Soloperto S, Altin D, Hallmann A, Skottene E, Hansen BH, Jenssen BM, Ciesielski TM. Oil-mediated oxidative-stress responses in a keystone zooplanktonic species, Calanus finmarchicus. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 806:151365. [PMID: 34742810 DOI: 10.1016/j.scitotenv.2021.151365] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 10/15/2021] [Accepted: 10/28/2021] [Indexed: 06/13/2023]
Abstract
The copepod Calanus finmarchicus is an ecologically important species in the North Atlantic, Norwegian and Barents seas. Accidental or continuous petroleum pollution from oil and gas production in these seas may pose a significant threat to this low trophic level keystone species. Responses related to oxidative stress, protein damage and lipid peroxidation were investigated in C. finmarchicus exposed to a water-accommodated fraction (WAF) of a naphthenic North Atlantic crude oil. The exposure concentration corresponded to 50% of the 96 h LC50, and samples were obtained at 0, 24, 48, 72 and 96 h after exposure initiation. Gene expressions (superoxide dismutase, catalase, glutathione S-transferase, glutathione synthetase, heat shock protein 70 and 90, ubiquitin and cytochrome P-450 330A1), enzyme activities (superoxide dismutase, catalase, glutathione S-transferase) and concentrations of total glutathione and malondialdehyde were analyzed. Gene expression analyses showed no differences between controls and the exposed animals, however significantly higher glutathione S-transferase activity and malondialdehyde concentrations were found in the exposed group, suggests lipid peroxidation as main toxic effect.
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Affiliation(s)
- Sofia Soloperto
- Department of Biology, Norwegian University of Science and Technology, Trondheim, Norway
| | | | - Anna Hallmann
- Department of Pharmaceutical Biochemistry, Medical University of Gdańsk, Gdańsk, Poland
| | - Elise Skottene
- Department of Biology, Norwegian University of Science and Technology, Trondheim, Norway
| | - Bjørn H Hansen
- SINTEF Ocean, Climate and Environment, Trondheim, Norway
| | - Bjørn M Jenssen
- Department of Biology, Norwegian University of Science and Technology, Trondheim, Norway
| | - Tomasz M Ciesielski
- Department of Biology, Norwegian University of Science and Technology, Trondheim, Norway.
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Subpiramaniyam S. Outdoor disinfectant sprays for the prevention of COVID-19: Are they safe for the environment? THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 759:144289. [PMID: 33321443 PMCID: PMC7725049 DOI: 10.1016/j.scitotenv.2020.144289] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 11/30/2020] [Accepted: 12/01/2020] [Indexed: 05/17/2023]
Abstract
Due to the wide range of viability on inanimate surfaces and fomite transmission of SARS-CoV-2, hydrogen peroxide (0.5%, HP) and hypochlorite-based (0.1%, HC) disinfectants (common biocides) are proposed by World Health Organization to mitigate the spread of this virus in healthcare settings. They can be adopted and applied to outdoor environments. However, many studies have shown that these two disinfectants are toxic to fishes and aquatic non-target organisms (primary producers and macroinvertebrates). The global market of these disinfectants will increase in coming years due to COVID-19. Therefore, it is urgent to highlight the toxicities of these disinfectants. The main findings of this article allow the community to develop a new strategy to protect the environment against the hazardous effects of disinfectants. Therefore, we use the "toxicity calculated ratio (TC ratio)" that refers to the fold increase or decrease in the toxicities reported in the literature (NOEC, LOEC, LC50 and EC50) relative to the WHO-recommended dose of HP and HC. The calculated TC ratios are valuable for policy makers to formulate the regulations to prevent disinfectant exposure in the environment. Our results were collected via PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-analysis) guidelines and showed that the TC ratios are from the single digits to several thousand-fold lower than the HP and HC recommended dose, which means these disinfectants are potentially dangerous to non-target organisms. The results also showed that HP and HC are toxic to the growth and reproduction of non-target organisms. Therefore, we recommend policymakers formulate protocols for critical assessment and monitoring of the environment-especially on non-target organisms in water bodies located in and around disinfectant-exposed areas to safeguard the environment in the future.
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Affiliation(s)
- Sivakumar Subpiramaniyam
- Department of Bioenvironmental Energy, College of Natural Resources and Life Science, Pusan National University, Miryang-si, Gyeongsangnam-do 50463, Republic of Korea.
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4
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Escobar-Lux RH, Samuelsen OB. The Acute and Delayed Mortality of the Northern Krill (Meganyctiphanes norvegica) When Exposed to Hydrogen Peroxide. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2020; 105:705-710. [PMID: 32979082 PMCID: PMC7648738 DOI: 10.1007/s00128-020-02996-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Accepted: 09/14/2020] [Indexed: 05/05/2023]
Abstract
Bath treatment pharmaceuticals used to control sea lice infestations in the salmonid industry, such as hydrogen peroxide (H2O2), are released directly into the environment where non-target organisms are at risk of exposure. The aim of this study was to determine the threshold concentrations for mortality of the Northern krill, Meganyctiphanes norvegica, a major component of the north Atlantic marine ecosystem. To assess the lethal effects of H2O2, we carried out a series of 1 h acute toxicity tests and assessed mortality through a 48 h post-exposure period. One-hour exposure to 170 mg/L, corresponding to 10% of the recommended H2O2 treatment, caused 100% mortality and a subsequent acute median-lethal concentration LC50 value of 32.5 mg/L. Increased mortality was observed with time in all exposed groups, resulting in successively lower LC50 values during the post-exposure period. The suggested H2O2 concentrations have the potential of causing negative effects to the Northern krill.
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Affiliation(s)
- Rosa H Escobar-Lux
- Institute of Marine Research, Austevoll Research Station, Sauganeset 16, 5392, Storebø, Norway.
| | - Ole B Samuelsen
- Institute of Marine Research, Nordnes, P.O. Box 1870, 5817, Bergen, Norway
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Escobar-Lux RH, Parsons AE, Samuelsen OB, Agnalt AL. Short-term exposure to hydrogen peroxide induces mortality and alters exploratory behaviour of European lobster (Homarus gammarus). ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 204:111111. [PMID: 32795703 DOI: 10.1016/j.ecoenv.2020.111111] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 07/28/2020] [Accepted: 07/30/2020] [Indexed: 06/11/2023]
Abstract
Bath treatment chemotherapeutants, used to control sea lice infestations in the salmonid aquaculture industry, are released directly into the marine environment around fish farms and pose a serious risk to non-target species, particularly crustaceans. Hydrogen peroxide (H2O2) is the most frequently used bath treatment chemotherapeutant on Norwegian fish farms, however, limited information is available on its toxicity to European lobsters (Homarus gammarus), a commercially important species at risk of exposure due to its distribution overlapping with salmon farm locations. The aim of this study was to investigate the lethal effects of H2O2 on pelagic (stage I-IV) larvae/post-larvae and its sub-lethal effects on the benthic stage V H. gammarus. To assess the lethal effects of H2O2, we carried out a series of 1 h toxicity tests and assessed mortality after a 24 h post-exposure period. Exposure to H2O2 was toxic to all pelagic larval stages tested, with estimated median lethal concentrations (LC50) of 177, 404, 665 and 737 mg/L for stage I, II, III and IV, respectively. These concentrations represent approximately 10, 23, 40 and 43%, of the recommended H2O2 concentrations used for delousing salmon on Norwegian fish farms, respectively. To assess the sub-lethal effects of H2O2 on H. gammarus, stage V juveniles were exposed to H2O2 at concentrations of 85, 170 and 510 mg/L for 1 h and shelter-seeking behaviour and mobility endpoints were assessed. Numerous behavioural parameters including distance travelled to shelter, time to locate shelter and the number of shelter inspections, were negatively affected in lobsters exposed to H2O2 when assessed immediately after the exposure period. However, no differences between control and exposed lobsters were detected after a 24 h post-exposure period. Our results demonstrate that short term exposures to H2O2 are lethal to pelagic H. gammarus life stages and can negatively affect the shelter seeking behaviour of benthic life stages, though these behavioural changes may be short-lived.
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Affiliation(s)
- Rosa H Escobar-Lux
- Institute of Marine Research, Austevoll Research Station, Sauganeset 16, N-5392, Storebø, Norway.
| | - Aoife E Parsons
- Institute of Marine Research, P.O. Box 1870, Nordnes, 5817, Bergen, Norway
| | - Ole B Samuelsen
- Institute of Marine Research, P.O. Box 1870, Nordnes, 5817, Bergen, Norway
| | - Ann-Lisbeth Agnalt
- Institute of Marine Research, P.O. Box 1870, Nordnes, 5817, Bergen, Norway
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Farkas J, Cappadona V, Olsen AJ, Hansen BH, Posch W, Ciesielski TM, Goodhead R, Wilflingseder D, Blatzer M, Altin D, Moger J, Booth AM, Jenssen BM. Combined effects of exposure to engineered silver nanoparticles and the water-soluble fraction of crude oil in the marine copepod Calanus finmarchicus. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2020; 227:105582. [PMID: 32823071 DOI: 10.1016/j.aquatox.2020.105582] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Revised: 07/13/2020] [Accepted: 07/18/2020] [Indexed: 06/11/2023]
Abstract
While it is likely that ENPs may occur together with other contaminants in nature, the combined effects of exposure to both ENPs and environmental contaminants are not studied sufficiently. In this study, we investigated the acute and sublethal toxicity of PVP coated silver nanoparticles (AgNP) and ionic silver (Ag+; administered as AgNO3) to the marine copepod Calanus finmarchicus. We further studied effects of single exposures to AgNPs (nominal concentrations: low 15 μg L-1 NPL, high 150 μg L-1 NPH) or Ag+ (60 μg L-1), and effects of co-exposure to AgNPs, Ag+ and the water-soluble fraction (WSF; 100 μg L-1) of a crude oil (AgNP + WSF; Ag++WSF). The gene expression and the activity of antioxidant defense enzymes SOD, CAT and GST, as well as the gene expression of HSP90 and CYP330A1 were determined as sublethal endpoints. Results show that Ag+ was more acutely toxic compared to AgNPs, with 96 h LC50 concentrations of 403 μg L-1 for AgNPs, and 147 μg L-1 for Ag+. Organismal uptake of Ag following exposure was similar for AgNP and Ag+, and was not significantly different when co-exposed to WSF. Exposure to AgNPs alone caused increases in gene expressions of GST and SOD, whereas WSF exposure caused an induction in SOD. Responses in enzyme activities were generally low, with significant effects observed only on SOD activity in NPL and WSF exposures and on GST activity in NPL and NPH exposures. Combined AgNP and WSF exposures caused slightly altered responses in expression of SOD, GST and CYP330A1 genes compared to the single exposures of either AgNPs or WSF. However, there was no clear pattern of cumulative effects caused by co-exposures of AgNPs and WSF. The present study indicates that the exposure to AgNPs, Ag+, and to a lesser degree WSF cause an oxidative stress response in C. finmarchicus, which was slightly, but mostly not significantly altered in combined exposures. This indicated that the combined effects between Ag and WSF are relatively limited, at least with regard to oxidative stress.
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Affiliation(s)
- J Farkas
- Department of Biology, Norwegian University of Science and Technology, 7491 Trondheim, Norway.
| | - V Cappadona
- Department of Biology, Norwegian University of Science and Technology, 7491 Trondheim, Norway
| | - A J Olsen
- Department of Biology, Norwegian University of Science and Technology, 7491 Trondheim, Norway
| | - B H Hansen
- SINTEF Ocean, Environment and New Resources, Trondheim, Norway
| | - W Posch
- Division of Hygiene and Medical Microbiology, Innsbruck Medical University, Innsbruck, Austria
| | - T M Ciesielski
- Department of Biology, Norwegian University of Science and Technology, 7491 Trondheim, Norway
| | - R Goodhead
- Department for Bioscience, University of Exeter, UK
| | - D Wilflingseder
- Division of Hygiene and Medical Microbiology, Innsbruck Medical University, Innsbruck, Austria
| | - M Blatzer
- Division of Hygiene and Medical Microbiology, Innsbruck Medical University, Innsbruck, Austria
| | | | - Julian Moger
- Physics and Medical Imaging, College of Engineering, Mathematics and Physical Sciences, University of Exeter, Exeter, Devon, EX4 4QL, United Kingdom
| | - A M Booth
- SINTEF Ocean, Environment and New Resources, Trondheim, Norway
| | - B M Jenssen
- Department of Biology, Norwegian University of Science and Technology, 7491 Trondheim, Norway
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Anti-diabetic activity of field cricket glycosaminoglycan by ameliorating oxidative stress. BMC Complement Med Ther 2020; 20:232. [PMID: 32698784 PMCID: PMC7376639 DOI: 10.1186/s12906-020-03027-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Accepted: 07/16/2020] [Indexed: 02/03/2023] Open
Abstract
BACKGROUND Field cricket (Gryllus bimaculatus) is newly emerged as an edible insect in several countries. Anti-inflammatory effect of glycosaminoglycan derived from this cricket on chronic disease animal model such as diabetic mouse has not been fully investigated yet. Thus, the objective of this study was to determine the anti-oxidative effect of such glycosaminoglycan on diabetic mouse. METHODS To discover potential therapeutic agents, field cricket glycosaminoglycan (GbG) was tested in the present study. Its anti-oxidative activities in diabetic mice were determined based on its abilities to reduce glucose, ALT, AST, ALP, LDL-cholesterol and BUN levels. Dung beetle (C. molossus) glycosaminoglycan (CaG) was used as a positive control. Db mice were intraperitoneally administered for 1 month according to their group assignments: 1) normal (DB-Hetero); 2) control (DB-Homo); 3) 5 mg/kg treatment of CaG (CaG5); 4) 5 mg/kg treatment of GbG (GbG5); and 5) 10 mg/kg treatment of metformin (Metformin 10). RESULTS Blood glucose level decreased after 1st week of treatment with GbG. LDL-cholesterol and alkaline phosphatase levels were also inhibited by GbG. Markers of oxidative damage, such as protein carbonyl content and levels of hepatocellular biomarkers, were reduced in db mice treated with GbG. Especially anti-oxidative activities of catalase, superoxide dismutase and glutathione peroxidase were significantly increased in GbG treated group compared to those in the control (Db Homo). GbG was composed of heparin disaccharides. Its main N-glycan was identified as Hex9GlcNAc2 (m/z 1905.7) with neutral mono-sugar mainly comprising of hexose and L (+) rhamnose by mass spectroscopy. CONCLUSIONS Sero-biochemical and hepatocellular anti-oxidant assay results in db mice suggest that cricket (G. bimaculatus) glycosaminoglycan might possess anti-oxidative effect in diabetic state.
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Frantzen M, Bytingsvik J, Tassara L, Reinardy HC, Refseth GH, Watts EJ, Evenset A. Effects of the sea lice bath treatment pharmaceuticals hydrogen peroxide, azamethiphos and deltamethrin on egg-carrying shrimp (Pandalus borealis). MARINE ENVIRONMENTAL RESEARCH 2020; 159:105007. [PMID: 32662438 DOI: 10.1016/j.marenvres.2020.105007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Revised: 04/26/2020] [Accepted: 04/28/2020] [Indexed: 06/11/2023]
Abstract
This study investigated effects of sea lice pharmaceuticals on egg-bearing deep-water shrimp (Pandalus borealis). Both mortality and sub-lethal effects (behavior, embryo development, and reproductive output) were studied for each of three pharmaceuticals alone and in different sequential combinations. The most severe effect was observed for deltamethrin where 2 h exposure to 330 times diluted treatment dose (alone and in sequential application with hydrogen peroxide and azamethiphos) induced almost 100% mortality within a few days after exposure. Similar effects were not observed for hydrogen peroxide or azamethiphos. However, sequential treatment of hydrogen peroxide and azamethiphos (2 h exposure to each pharmaceutical; 500 times dilution) resulted in >40% mortality during the first week following treatment. No sub-lethal effects or loss of eggs in female shrimp could be related to exposure to the bath treatments. Future studies should investigate potential sub-lethal effects at exposure concentrations close to the no-effect concentration.
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Affiliation(s)
| | | | - Luca Tassara
- Akvaplan-niva, Fram Centre, 9296, Tromsø, Norway.
| | - Helena C Reinardy
- The Scottish Association for Marine Science, Scottish Marine Institute, Oban, Argyll, PA37 1QA, UK; UNIS, The University Centre in Svalbard, Longyearbyen, 9171, Svalbard, Norway.
| | | | | | - Anita Evenset
- Akvaplan-niva, Fram Centre, 9296, Tromsø, Norway; UiT, The Arctic University of Norway. Faculty of Biosciences, Fisheries and Economics, 037, Tromsø, Norway.
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Bechmann RK, Arnberg M, Gomiero A, Westerlund S, Lyng E, Berry M, Agustsson T, Jager T, Burridge LE. Gill damage and delayed mortality of Northern shrimp (Pandalus borealis) after short time exposure to anti-parasitic veterinary medicine containing hydrogen peroxide. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 180:473-482. [PMID: 31121554 DOI: 10.1016/j.ecoenv.2019.05.045] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Revised: 05/10/2019] [Accepted: 05/13/2019] [Indexed: 06/09/2023]
Abstract
Hydrogen peroxide (H2O2) is used as anti-parasitic veterinary medicine in salmon farms worldwide. In the period from 2009 to 2018 a total of 135 million kg of H2O2 was used in Norway, the world's largest producer of Atlantic salmon. Since the treatment water is discharged to the sea, concerns have been raised about effects of H2O2 on the coastal ecosystem. In the present study, Northern shrimp (Pandalus borealis) have been exposed to short pulses of H2O2 in the PARAMOVE® formulation, followed by a recovery period in clean seawater. The exposure concentrations represented 100, 1000 and 10 000 times dilutions of the prescribed treatment concentration for salmon; 15 mg/L, 1.5 mg/L and 0.15 mg/L H2O2. Significantly increased mortality was observed after 2 h exposure to 15 mg/L H2O2 (50%) and after 2 h exposure to 1.5 mg/L H2O2 on 3 consecutive days (33%), but no mortality was observed after 2 h exposure to 0.15 mg/L. The mortality occurred 2-4 days after the first pulse of exposure. The patterns of acute effects (immobility and death) could be captured with a toxicokinetic-toxicodynamic model (GUTS), which allows extrapolations to LC50s for constant exposure, or thresholds for effects given untested exposure profiles. Effects of H2O2 were also detected in shrimp that survived until the end of the recovery period. The feeding rate was 66% lower than in the control after 12 days of recovery for the three-pulse 1.5 mg/L exposure. Furthermore, dose dependent tissue damage was detected in the gills and evidence of lipid peroxidation in the hepatopancreas in shrimp exposed for 1 h to 1.5 mg/L and 15 mg/L and kept in recovery for 8 days. Fluorescence intensity in the hepatopancreas of treated shrimp increased 47% and 157% at 1.5 mg/L and 15 mg/L, respectively, compared to the control. Local hydrodynamic conditions will determine how fast the concentration of H2O2 will be diluted and how far it will be transported horizontally and vertically. Results from dispersion modelling (literature data) together with the current experiments indicate that treatment water with toxic concentrations of H2O2 (1.5 mg/L) could reach P. borealis living more than 1 km from a treated salmon farm.
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Affiliation(s)
| | - Maj Arnberg
- NORCE Norwegian Research Centre, Mekjarvik 12, 4072, Randaberg, Norway.
| | - Alessio Gomiero
- NORCE Norwegian Research Centre, Mekjarvik 12, 4072, Randaberg, Norway.
| | - Stig Westerlund
- NORCE Norwegian Research Centre, Mekjarvik 12, 4072, Randaberg, Norway.
| | - Emily Lyng
- NORCE Norwegian Research Centre, Mekjarvik 12, 4072, Randaberg, Norway.
| | - Mark Berry
- NORCE Norwegian Research Centre, Mekjarvik 12, 4072, Randaberg, Norway.
| | | | | | - Les E Burridge
- Burridge Consulting Inc., 61 Emmalee Dr Stratford PE, Canada, C1B 0B5, Canada.
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Codispoti B, Makeeva I, Sied J, Benincasa C, Scacco S, Tatullo M. Should we reconsider the apoptosis as a strategic player in tissue regeneration? Int J Biol Sci 2019; 15:2029-2036. [PMID: 31592227 PMCID: PMC6775292 DOI: 10.7150/ijbs.36362] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2019] [Accepted: 06/19/2019] [Indexed: 12/14/2022] Open
Abstract
Apoptosis plays a central role in organs development and homeostasis. Impaired regulation of this process is often associated with the onset of several human diseases, such as developmental disorders and cancer. The last scientific investigations have discovered interesting connections between apoptosis, stem cells, tissue regeneration and cancer. The role of "programmed cell death" in stem cells and tissue engineering is extremely promising; in fact, it holds great potential for regenerative purposes. However, several questions still remain unsolved: do we really know all the main molecular actors able to switch ON/OFF the apoptosis? Is it possible to modulate these players, to obtain a predictable regeneration of tissues and organs? But primarily: should we reconsider the apoptosis as a strategic player in tissue regeneration? In this topical review, we have carefully examined the most recent discoveries about the role of apoptosis in stem cells and, specifically, in mesenchymal stem cells. The pivotal molecules involved in the activation and inhibition of the apoptotic pathways will be carefully described, with the aim to shed an overall light on the complex scenario of stem cell life and death, and on a novel strategy for tissue regeneration.
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Affiliation(s)
- Bruna Codispoti
- Marrelli Health, Tecnologica Research Institute, Biomedical Section, Street E. Fermi, Crotone, Italy
| | - Irina Makeeva
- Department of Therapeutic Dentistry, IM Sechenov First Moscow State Medical University, Moscow, Russia
| | - Jamal Sied
- Advanced Technology Dental Research Laboratory, Faculty of Dentistry, King Abdul Aziz University, KSA and Director of CODE-M, Center of Dental Education and Medicine, Pakistan
| | - Caterina Benincasa
- Marrelli Health, Tecnologica Research Institute, Biomedical Section, Street E. Fermi, Crotone, Italy
| | - Salvatore Scacco
- Dept. of Basic Medical Sciences, Neurosciences and Sense Organs, University of Bari, Italy
| | - Marco Tatullo
- Marrelli Health, Tecnologica Research Institute, Biomedical Section, Street E. Fermi, Crotone, Italy.,Department of Therapeutic Dentistry, IM Sechenov First Moscow State Medical University, Moscow, Russia
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Escobar-Lux RH, Fields DM, Browman HI, Shema SD, Bjelland RM, Agnalt AL, Skiftesvik AB, Samuelsen OB, Durif CM. The effects of hydrogen peroxide on mortality, escape response, and oxygen consumption of Calanus spp. Facets (Ott) 2019. [DOI: 10.1139/facets-2019-0011] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Hydrogen peroxide (H2O2), a pesticide used in salmonid aquaculture, is released directly into the environment where nontarget organisms are at risk of exposure. We determined threshold concentrations for mortality of Calanus spp., the dominant zooplankton species in the North Atlantic, and assessed sublethal effects, focusing on the escape response and oxygen consumption rates (OCRs) as behavioral and physiological assays. One-hour exposure to 170 mg·L−1 (i.e., 10% of the recommended H2O2 treatment) was lethal to copepodite stage V (92% mortality) and adult females (100% mortality). The acute median lethal concentration (1h-LC50) was 214.1 (150.67–277.4) and 48.6 (44.9–52.2) mg·L−1 for copepodite V and adults, respectively. The 25-h LC50 was 77.1 (57.9–96.2) and 30.63 (25.4–35.8) mg·L−1 for copepodite V and adults, respectively. At concentrations of 0.5% and 1% of the recommended treatment level, Calanus spp. showed a decrease in escape performance and lower OCRs with increased concentration. At H2O2 concentrations of 5% of the recommended treatment levels (85 mg·L−1), exposed copepods showed no escape reaction response. These results suggest that sublethal concentrations of H2O2 will increase the risk of predation for Calanus spp. Furthermore, this study provides supporting evidence that theoretical “safe” values, traditionally used for predicting toxicity thresholds, underestimate the impact of H2O2 on the physiological condition of nontarget crustaceans.
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Affiliation(s)
- Rosa H. Escobar-Lux
- Institute of Marine Research, Austevoll Research Station, Sauganeset 16, N-5392 Storebø, Norway
| | - David M. Fields
- Bigelow Laboratory for Ocean Sciences, East Boothbay, ME 04544, USA
| | - Howard I. Browman
- Institute of Marine Research, Austevoll Research Station, Sauganeset 16, N-5392 Storebø, Norway
| | - Steven D. Shema
- Institute of Marine Research, Austevoll Research Station, Sauganeset 16, N-5392 Storebø, Norway
| | - Reidun M. Bjelland
- Institute of Marine Research, Austevoll Research Station, Sauganeset 16, N-5392 Storebø, Norway
| | - Ann-Lisbeth Agnalt
- Institute of Marine Research, P.O. Box 1870, Nordnes, 5817 Bergen, Norway
| | - Anne Berit Skiftesvik
- Institute of Marine Research, Austevoll Research Station, Sauganeset 16, N-5392 Storebø, Norway
| | - Ole B. Samuelsen
- Institute of Marine Research, P.O. Box 1870, Nordnes, 5817 Bergen, Norway
| | - Caroline M.F. Durif
- Institute of Marine Research, Austevoll Research Station, Sauganeset 16, N-5392 Storebø, Norway
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12
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Tollefsen KE, Song Y, Høgåsen T, Øverjordet IB, Altin D, Hansen BH. Mortality and transcriptional effects of inorganic mercury in the marine copepod Calanus finmarchicus. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2017; 80:845-861. [PMID: 28841366 DOI: 10.1080/15287394.2017.1352198] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Inorganic mercury (Hg) is highly toxic to organisms including crustaceans and displays multiple toxic modes of action (MoA). The main aim of this investigation was to assess the acute and sublethal toxicity mediated by mercury chloride (HgCl2) in the marine copepod Calanus finmarchicus. A combination of short-term static studies to determine acute toxicity and a transcriptional investigation to characterize the sublethal MoA of HgCl2 were conducted with an in-house continuous culture of C. finmarchicus. Transcriptional changes were determined by a custom 6.6 k C. finmarchicus Agilent oligonucleotide microarray and quantitative RT-PCR analysis. Data demonstrate that HgCl2 produced a concentration- and time-dependent reduction in survival (NOEC48 h = 6.9 μg/L [Hg2+] and LC50 of 279, 73, 48, and 34 µg/L [Hg2+] after 24, 48, 72, and 96 h, respectively) and that exposure to sublethal concentrations of HgCl2 (5 μg/L [Hg2+]) induced differential expression of 98 features (probes) on the microarray. Gene ontology (GO) and toxicological pathway analyses suggested that the main MOA were (1) uncoupling of mitochondrial oxidative phosphorylation (OXPHOS) and ATP production, (2) oxidative stress and macromolecular damage, (3) inactivation of cellular enzymes, (4) induction of cellular apoptosis and autophagocytosis, (5) over-excitation of glutamate receptors (neurotoxicity), (6) disruption of calcium homeostasis and signaling, and (7) modulation of nuclear receptor activity involved in vitamin D receptor signaling. Quantitative RT-PCR analysis verified that oligoarray performed reliably in terms of specificity and response, thus demonstrating that Hg2+ exerts multiple potential MoA in C. finmarchicus.
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Affiliation(s)
- Knut Erik Tollefsen
- a Norwegian Institute for Water Research (NIVA) , Oslo , Norway
- b Faculty of Environmental Sciences and Natural Resource Management , Norwegian University of Life Sciences (NMBU) , Ås , Norway
- c Centre for Environmental Radioactivity , Norwegian University of Life Sciences (NMBU) , Ås , Norway
| | - You Song
- a Norwegian Institute for Water Research (NIVA) , Oslo , Norway
- c Centre for Environmental Radioactivity , Norwegian University of Life Sciences (NMBU) , Ås , Norway
| | - Tore Høgåsen
- a Norwegian Institute for Water Research (NIVA) , Oslo , Norway
| | - Ida Beathe Øverjordet
- d Department of Biology , Norwegian University of Science and Technology (NTNU) , Trondheim , Norway
- e SINTEF Ocean AS, Environmental Technology , Trondheim , Norway
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