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Bouquet A, Thébault A, Arnich N, Foucault E, Caillard E, Gianaroli C, Bellamy E, Rolland JL, Laabir M, Abadie E. Modelling spatiotemporal distributions of Vulcanodinium rugosum and pinnatoxin G in French Mediterranean lagoons: Application to human health risk characterisation. HARMFUL ALGAE 2023; 129:102500. [PMID: 37951616 DOI: 10.1016/j.hal.2023.102500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 08/16/2023] [Accepted: 09/07/2023] [Indexed: 11/14/2023]
Abstract
Consumption of seafood contaminated by phycotoxins produced by harmful algae is a major issue in human public health. Harmful algal blooms are driven by a multitude of environmental variables; therefore predicting human dietary exposure to phycotoxins based on these variables is a promising approach in health risk management. In this study, we attempted to predict the human health risks associated with Vulcanodinium rugosum and its neurotoxins, pinnatoxins (PnTXs), which have been regularly found in Mediterranean lagoons since their identification in 2011. Based on environmental variables collected over 1 year in four Mediterranean lagoons, we developed linear mixed models to predict the presence of V. rugosum and PnTX G contamination of mussels. We found that the occurrence of V. rugosum was significantly associated with seawater temperature. PnTX G contamination of mussels was highest in summer but persisted throughout the year. This contamination was significantly associated with seawater temperature and the presence of V. rugosum with a time lag, but not with dissolved PnTX G in seawater. By using the contamination model predictions and their potential variability/uncertainty, we calculated the human acute dietary exposures throughout the year and predicted that 25% of people who consume mussels could exceed the provisional acute benchmark value during the warmest periods. We suggest specific recommendations to monitor V. rugosum and PnTX G.
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Affiliation(s)
- Aurélien Bouquet
- MARBEC, Univ Montpellier, CNRS, Ifremer, IRD, 87 Avenue Jean Monnet, 34200 Sète, France.
| | - Anne Thébault
- ANSES (French Agency for Food, Environmental and Occupational Health and Safety), Risk Assessment Directorate, Maisons-Alfort, France
| | - Nathalie Arnich
- ANSES (French Agency for Food, Environmental and Occupational Health and Safety), Risk Assessment Directorate, Maisons-Alfort, France
| | - Elodie Foucault
- MARBEC, Univ Montpellier, CNRS, Ifremer, IRD, 87 Avenue Jean Monnet, 34200 Sète, France
| | - Elise Caillard
- MARBEC, Univ Montpellier, CNRS, Ifremer, IRD, 87 Avenue Jean Monnet, 34200 Sète, France
| | - Camille Gianaroli
- MARBEC, Univ Montpellier, CNRS, Ifremer, IRD, 87 Avenue Jean Monnet, 34200 Sète, France
| | - Elise Bellamy
- MARBEC, Univ Montpellier, CNRS, Ifremer, IRD, 87 Avenue Jean Monnet, 34200 Sète, France
| | - Jean Luc Rolland
- MARBEC, Univ Montpellier, CNRS, Ifremer, IRD, 87 Avenue Jean Monnet, 34200 Sète, France
| | - Mohamed Laabir
- MARBEC, Univ Montpellier, CNRS, Ifremer, IRD, Place Eugène Bataillon, 34095 Montpellier, France
| | - Eric Abadie
- MARBEC, Univ Montpellier, CNRS, Ifremer, IRD, 87 Avenue Jean Monnet, 34200 Sète, France; IFREMER, Biodivenv, 79 Route de Pointe Fort, 97231 Martinique, France
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Norambuena L, Mardones JI. Emerging phycotoxins in the Chilean coast: First localized detection of the neurotoxic cyclic imine Pinnatoxin-G in shellfish banks. MARINE POLLUTION BULLETIN 2023; 190:114878. [PMID: 37002965 DOI: 10.1016/j.marpolbul.2023.114878] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 03/20/2023] [Accepted: 03/22/2023] [Indexed: 06/19/2023]
Abstract
Pinnatoxins (PnTXs) produced by the cosmopolitan dinoflagellate Vulcanodinium rugosum are highly potent cyclic imines that represent a risk for seafood consumers, artisanal fisheries, and the local aquaculture industry. Among the eight known PnTXs, pinnatoxin-G (PnTX-G) is the most frequent toxin analog detected in shellfish. Despite PnTX-G is still not internationally regulated, the French Agency for Food, Environmental and Occupational Health and Safety established that a risk for human consumers may exist when the accumulation of PnTX-G in shellfish exceeds 23 μg kg-1. This study reports the first detection of these fast-acting lipophilic toxins in localized shellfish banks (Mytilus chilensis) from the Chilean coast. Among 32 sentinel sampling stations monthly monitored for phytotoxins detection and quantification between 2021 and 2022 along the southern Chilean coast (from 36°25' S to 54°57'S), PnTx-G was only detected in shellfish from the southernmost region of Magallanes in concentrations that ranged between 15 and 100 μg kg-1, highlighting the binational (Chile/Argentina) Beagle Channel as a 'hotspot'. As Chile is one of the major mussel producers worldwide, this result raises concern about the potential adverse effect of PnTXs for human health and point to the need of governmental actions for an enhanced monitoring of these emerging toxins. To date, the production of PnTXs has not yet been associated with any microalgae species in Chilean waters.
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Affiliation(s)
- Luis Norambuena
- Centro de Estudios de Algas Nocivas (CREAN), Instituto de Fomento Pesquero (IFOP), Puerto Montt, Los Lagos, Chile
| | - Jorge I Mardones
- Centro de Estudios de Algas Nocivas (CREAN), Instituto de Fomento Pesquero (IFOP), Puerto Montt, Los Lagos, Chile; Centro de Investigación en Recursos Naturales y Sustentabilidad (CIRENYS), Universidad Bernardo O'Higgins, Santiago 8370993, Chile.
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Louzao MC, Vilariño N, Vale C, Costas C, Cao A, Raposo-Garcia S, Vieytes MR, Botana LM. Current Trends and New Challenges in Marine Phycotoxins. Mar Drugs 2022; 20:md20030198. [PMID: 35323497 PMCID: PMC8950113 DOI: 10.3390/md20030198] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 03/04/2022] [Accepted: 03/05/2022] [Indexed: 02/04/2023] Open
Abstract
Marine phycotoxins are a multiplicity of bioactive compounds which are produced by microalgae and bioaccumulate in the marine food web. Phycotoxins affect the ecosystem, pose a threat to human health, and have important economic effects on aquaculture and tourism worldwide. However, human health and food safety have been the primary concerns when considering the impacts of phycotoxins. Phycotoxins toxicity information, often used to set regulatory limits for these toxins in shellfish, lacks traceability of toxicity values highlighting the need for predefined toxicological criteria. Toxicity data together with adequate detection methods for monitoring procedures are crucial to protect human health. However, despite technological advances, there are still methodological uncertainties and high demand for universal phycotoxin detectors. This review focuses on these topics, including uncertainties of climate change, providing an overview of the current information as well as future perspectives.
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Affiliation(s)
- Maria Carmen Louzao
- Departamento de Farmacologia, Facultad de Veterinaria, Universidade de Santiago de Compostela, 27002 Lugo, Spain; (N.V.); (C.V.); (C.C.); (A.C.); (S.R.-G.)
- Correspondence: (M.C.L.); (L.M.B.)
| | - Natalia Vilariño
- Departamento de Farmacologia, Facultad de Veterinaria, Universidade de Santiago de Compostela, 27002 Lugo, Spain; (N.V.); (C.V.); (C.C.); (A.C.); (S.R.-G.)
| | - Carmen Vale
- Departamento de Farmacologia, Facultad de Veterinaria, Universidade de Santiago de Compostela, 27002 Lugo, Spain; (N.V.); (C.V.); (C.C.); (A.C.); (S.R.-G.)
| | - Celia Costas
- Departamento de Farmacologia, Facultad de Veterinaria, Universidade de Santiago de Compostela, 27002 Lugo, Spain; (N.V.); (C.V.); (C.C.); (A.C.); (S.R.-G.)
| | - Alejandro Cao
- Departamento de Farmacologia, Facultad de Veterinaria, Universidade de Santiago de Compostela, 27002 Lugo, Spain; (N.V.); (C.V.); (C.C.); (A.C.); (S.R.-G.)
| | - Sandra Raposo-Garcia
- Departamento de Farmacologia, Facultad de Veterinaria, Universidade de Santiago de Compostela, 27002 Lugo, Spain; (N.V.); (C.V.); (C.C.); (A.C.); (S.R.-G.)
| | - Mercedes R. Vieytes
- Departamento de Fisiologia, Facultad de Veterinaria, Universidade de Santiago de Compostela, 27002 Lugo, Spain;
| | - Luis M. Botana
- Departamento de Farmacologia, Facultad de Veterinaria, Universidade de Santiago de Compostela, 27002 Lugo, Spain; (N.V.); (C.V.); (C.C.); (A.C.); (S.R.-G.)
- Correspondence: (M.C.L.); (L.M.B.)
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Marine Neurotoxins' Effects on Environmental and Human Health: An OMICS Overview. Mar Drugs 2021; 20:md20010018. [PMID: 35049872 PMCID: PMC8778346 DOI: 10.3390/md20010018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 12/20/2021] [Accepted: 12/21/2021] [Indexed: 12/27/2022] Open
Abstract
Harmful algal blooms (HAB), and the consequent release of toxic metabolites, can be responsible for seafood poisoning outbreaks. Marine wildlife can accumulate these toxins throughout the food chain, which presents a threat to consumers’ health. Some of these toxins, such as saxitoxin (STX), domoic acid (DA), ciguatoxin (CTX), brevetoxin (BTX), tetrodotoxin (TTX), and β-N-methylamino-L-alanine (BMAA), cause severe neurological symptoms in humans. Considerable information is missing, however, notably the consequences of toxin exposures on changes in gene expression, protein profile, and metabolic pathways. This information could lead to understanding the consequence of marine neurotoxin exposure in aquatic organisms and humans. Nevertheless, recent contributions to the knowledge of neurotoxins arise from OMICS-based research, such as genomics, transcriptomics, proteomics, and metabolomics. This review presents a comprehensive overview of the most recent research and of the available solutions to explore OMICS datasets in order to identify new features in terms of ecotoxicology, food safety, and human health. In addition, future perspectives in OMICS studies are discussed.
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Servent D, Malgorn C, Bernes M, Gil S, Simasotchi C, Hérard AS, Delzescaux T, Thai R, Barbe P, Keck M, Beau F, Zakarian A, Dive V, Molgó J. First evidence that emerging pinnatoxin-G, a contaminant of shellfish, reaches the brain and crosses the placental barrier. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 790:148125. [PMID: 34380275 DOI: 10.1016/j.scitotenv.2021.148125] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 04/27/2021] [Accepted: 05/26/2021] [Indexed: 06/13/2023]
Abstract
Massive proliferation of some toxic marine dinoflagellates is responsible for the occurrence of harmful algal blooms and the contamination of fish and shellfish worldwide. Pinnatoxins (PnTx) (A-H) comprise an emerging phycotoxin family belonging to the cyclic imine toxin group. Interest has been focused on these lipophilic, fast-acting and highly potent toxins because they are widely found in contaminated shellfish, and can represent a risk for seafood consumers. PnTx display a potent antagonist effect on nicotinic acetylcholine receptors (nAChR), and in this study we assessed in vivo the ability of PnTx-G to cross physiological barriers to reach its molecular target. Radiolabeled [3H]-PnTx-G synthesized with good radiochemical purity and yield retained the high affinity of the natural toxin. Oral gavage or intravenous administration to adult rats and digital autoradiographic analyses revealed the biodistribution and toxicokinetics of [3H]-PnTx-G, which is rapidly cleared from blood, and accumulates in the liver and small intestine. The labeling of peripheral and brain adult/embryo rat tissues highlights its ability to cross the intestinal, blood-brain and placental barriers. High-resolution 3D-imaging and in vitro competition studies on rat embryo sections revealed the specificity of [3H]-PnTx-G binding and its selectivity for muscle and neuronal nAChR subtypes (such as α7 subtype). The use of a human perfused cotyledon model and mass spectrometry analyses disclosed that PnTx-G crosses the human placental barrier. The increasing worldwide occurrence of both the dinoflagellate Vulcanodinium rugosum and PnTx-contaminated shellfish, due to climate warming, raises concerns about the potential adverse impact that exposure to pinnatoxins may have for human health.
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Affiliation(s)
- Denis Servent
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SIMoS, ERL CNRS 9004, F-91191 Gif sur Yvette, France.
| | - Carole Malgorn
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SIMoS, ERL CNRS 9004, F-91191 Gif sur Yvette, France
| | - Mylène Bernes
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SIMoS, ERL CNRS 9004, F-91191 Gif sur Yvette, France
| | - Sophie Gil
- Université de Paris, UMR-S1139, Faculté de Pharmacie de Paris, France
| | | | - Anne-Sophie Hérard
- Université Paris-Saclay, UMR9199, CNRS, CEA, MIRCen, Fontenay-aux-Roses, France
| | - Thierry Delzescaux
- Université Paris-Saclay, UMR9199, CNRS, CEA, MIRCen, Fontenay-aux-Roses, France
| | - Robert Thai
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SIMoS, ERL CNRS 9004, F-91191 Gif sur Yvette, France
| | - Peggy Barbe
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SIMoS, ERL CNRS 9004, F-91191 Gif sur Yvette, France
| | - Mathilde Keck
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SIMoS, ERL CNRS 9004, F-91191 Gif sur Yvette, France
| | - Fabrice Beau
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SIMoS, ERL CNRS 9004, F-91191 Gif sur Yvette, France
| | - Armen Zakarian
- University of California, Santa Barbara, Department of Chemistry and Biochemistry, CA 93106-9510, USA
| | - Vincent Dive
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SIMoS, ERL CNRS 9004, F-91191 Gif sur Yvette, France
| | - Jordi Molgó
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SIMoS, ERL CNRS 9004, F-91191 Gif sur Yvette, France.
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Moreira-González AR, Comas-González A, Valle-Pombrol A, Seisdedo-Losa M, Hernández-Leyva O, Fernandes LF, Chomérat N, Bilien G, Hervé F, Rovillon GA, Hess P, Alonso-Hernández CM, Mafra LL. Summer bloom of Vulcanodinium rugosum in Cienfuegos Bay (Cuba) associated to dermatitis in swimmers. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 757:143782. [PMID: 33229082 DOI: 10.1016/j.scitotenv.2020.143782] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 10/22/2020] [Accepted: 11/09/2020] [Indexed: 06/11/2023]
Abstract
The marine dinoflagellate Vulcanodinium rugosum produces powerful paralyzing and cytotoxic compounds named pinnatoxins (PnTX) and portimines. Even though, no related human intoxication episodes following direct exposure in seawater or the ingestion of contaminated seafood have been documented so far. This study aimed at investigating a dinoflagellate bloom linked to acute dermatitis cases in two recreational beaches in Cienfuegos Bay, Cuba. We used epidemiological and clinical data from 60 dermatitis cases consisting of individuals in close contact with the bloom. Seawater physical-chemical properties were described, and the microorganism causing the bloom was identified by means of light and scanning electron microscopy. Morphological identification was confirmed genetically by sequencing the internal transcribed spacers ITS1 and ITS2, and the 5.8S rDNA region. Toxic compounds were identified from a bloom extract using liquid chromatography (LC) coupled to high-resolution mass spectrometry (HRMS), and their concentrations were estimated based on low-resolution tandem mass spectrometry (LC-MS/MS). Sixty people who had prolonged contact with the dinoflagellate bloom suffered acute dermal irritation. Most patients (79.2%) were children and had to be treated with antibiotics; some required >5-day hospitalization. Combined morphological and genetic characters indicated V. rugosum as the causative agent of the bloom. rDNA sequences of the V. rugosum genotype found in the bloom aligned with others from Asia, including material found in the ballast tank of a ship in Florida. The predominant toxins in the bloom were portimine, PnTX-F and PnTX-E, similar to strains originating from the Pacific Ocean. This bloom was associated with unusual weather conditions such as frequent and prolonged droughts. Our findings indicate a close link between the V. rugosum bloom and a dermatitis outbreak among swimmers in Cienfuegos Bay. Phylogenetic evidence suggests a recent introduction of V. rugosum from the Pacific Ocean into Caribbean waters, possibly via ballast water.
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Affiliation(s)
- Angel R Moreira-González
- Centro de Estudios Ambientales de Cienfuegos (CEAC), AP. 5, Ciudad Nuclear, CP 59350, Cienfuegos, Cuba; Centro de Estudos do Mar, Universidade Federal do Paraná, P.O. Box 61, Av. Beira Mar, s/n, Pontal do Paraná, Paraná 83255-976, Brazil.
| | - Augusto Comas-González
- Centro de Estudios Ambientales de Cienfuegos (CEAC), AP. 5, Ciudad Nuclear, CP 59350, Cienfuegos, Cuba.
| | - Aimee Valle-Pombrol
- Centro de Estudios Ambientales de Cienfuegos (CEAC), AP. 5, Ciudad Nuclear, CP 59350, Cienfuegos, Cuba.
| | - Mabel Seisdedo-Losa
- Centro de Estudios Ambientales de Cienfuegos (CEAC), AP. 5, Ciudad Nuclear, CP 59350, Cienfuegos, Cuba.
| | - Olidia Hernández-Leyva
- Centro Provincial de Higiene, Epidemiología y Microbiología de Cienfuegos, 13 Calzada de Máximo Gómez, Cienfuegos 55100, Cuba.
| | - Luciano F Fernandes
- Departamento de Botânica, Universidade Federal do Paraná, Centro Politécnico, R. Elétrica, 540, Curitiba, Paraná 82590-300, Brazil.
| | - Nicolas Chomérat
- IFREMER, Laboratory of Environment and Resources Western Brittany, Coastal Research Unit, Quai de la Croix, 29900 Concarneau Cedex, France.
| | - Gwenaël Bilien
- IFREMER, Laboratory of Environment and Resources Western Brittany, Coastal Research Unit, Quai de la Croix, 29900 Concarneau Cedex, France.
| | - Fabienne Hervé
- IFREMER, DYNECO, Laboratoire Phycotoxines, Rue de l'Île d'Yeu, 44311 Nantes Cedex 03, France.
| | | | - Philipp Hess
- IFREMER, DYNECO, Laboratoire Phycotoxines, Rue de l'Île d'Yeu, 44311 Nantes Cedex 03, France.
| | - Carlos M Alonso-Hernández
- Centro de Estudios Ambientales de Cienfuegos (CEAC), AP. 5, Ciudad Nuclear, CP 59350, Cienfuegos, Cuba.
| | - Luiz L Mafra
- Centro de Estudos do Mar, Universidade Federal do Paraná, P.O. Box 61, Av. Beira Mar, s/n, Pontal do Paraná, Paraná 83255-976, Brazil.
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Arnich N, Abadie E, Delcourt N, Fessard V, Fremy JM, Hort V, Lagrange E, Maignien T, Molgó J, Peyrat MB, Vernoux JP, Mattei C. Health risk assessment related to pinnatoxins in French shellfish. Toxicon 2020; 180:1-10. [DOI: 10.1016/j.toxicon.2020.03.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 03/16/2020] [Accepted: 03/25/2020] [Indexed: 02/02/2023]
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Sosa S, Pelin M, Cavion F, Hervé F, Hess P, Tubaro A. Acute Oral Toxicity of Pinnatoxin G in Mice. Toxins (Basel) 2020; 12:toxins12020087. [PMID: 32012834 PMCID: PMC7076786 DOI: 10.3390/toxins12020087] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 01/21/2020] [Accepted: 01/23/2020] [Indexed: 01/18/2023] Open
Abstract
Pinnatoxin G (PnTx-G) is a marine cyclic imine toxin produced by the dinoflagellate Vulcanodinium rugosum, frequently detected in edible shellfish from Ingril Lagoon (France). As other pinnatoxins, to date, no human poisonings ascribed to consumption of PnTx-G contaminated seafood have been reported, despite its potent antagonism at nicotinic acetylcholine receptors and its high and fast-acting toxicity after intraperitoneal or oral administration in mice. The hazard characterization of PnTx-G by oral exposure is limited to a single acute toxicity study recording lethality and clinical signs in non-fasted mice treated by gavage or through voluntary food ingestion, which showed differences in PnTx-G toxic potency. Thus, an acute toxicity study was carried out using 3 h-fasted CD-1 female mice, administered by gavage with PnTx-G (8–450 µg kg−1). At the dose of 220 µg kg−1 and above, the toxin induced a rapid onset of clinical signs (piloerection, prostration, hypothermia, abdominal breathing, paralysis of the hind limbs, and cyanosis), leading to the death of mice within 30 min. Except for moderate mucosal degeneration in the small intestine recorded at doses of 300 µg kg−1, the toxin did not induce significant morphological changes in the other main organs and tissues, or alterations in blood chemistry parameters. This acute oral toxicity study allowed to calculate an oral LD50 for PnTx-G equal to 208 μg kg−1 (95% confidence limits: 155–281 µg kg−1) and to estimate a provisional NOEL of 120 µg kg−1.
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Affiliation(s)
- Silvio Sosa
- Department of Life Sciences, University of Trieste, Via A. Valerio 6, 34127 Trieste, Italy; (M.P.); (F.C.); (A.T.)
- Correspondence: ; Tel.: +39-040-558-8836
| | - Marco Pelin
- Department of Life Sciences, University of Trieste, Via A. Valerio 6, 34127 Trieste, Italy; (M.P.); (F.C.); (A.T.)
| | - Federica Cavion
- Department of Life Sciences, University of Trieste, Via A. Valerio 6, 34127 Trieste, Italy; (M.P.); (F.C.); (A.T.)
| | - Fabienne Hervé
- Ifremer, Laboratoire Phycotoxines, Centre Atlantique, 44311 Nantes CEDEX, France; (F.H.); (P.H.)
| | - Philipp Hess
- Ifremer, Laboratoire Phycotoxines, Centre Atlantique, 44311 Nantes CEDEX, France; (F.H.); (P.H.)
| | - Aurelia Tubaro
- Department of Life Sciences, University of Trieste, Via A. Valerio 6, 34127 Trieste, Italy; (M.P.); (F.C.); (A.T.)
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Analysis of Cyclic Imines in Mussels ( Mytilus galloprovincialis) from Galicia (NW Spain) by LC-MS/MS. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 17:ijerph17010281. [PMID: 31906079 PMCID: PMC6981759 DOI: 10.3390/ijerph17010281] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 12/27/2019] [Accepted: 12/28/2019] [Indexed: 12/17/2022]
Abstract
Cyclic imines (CIs) are being considered as emerging toxins in the European Union, and a scientific opinion has been published by the European Food Safety Authority (EFSA) in which an assessment of the risks to human health related to their consumption has been carried out. Recommendations on the EFSA opinion include the search for data occurrence of CIs in shellfish and using confirmatory methods by liquid chromatography-tandem mass spectrometry (LC-MS/MS), which need to be developed and optimized. The aim of this work is the application of LC-MS/MS to the analysis of gymnodimines (GYMs), spirolides (SPXs), pinnatoxins (PnTXs), and pteriatoxins (PtTXs) in mussels from Galician Rias, northwest Spain, the main production area in Europe, and therefore a representative emplacement for their evaluation. Conditions were adjusted using commercially available certified reference standards of GYM-A, SPX-1, and PnTX-G and evaluated through quality control studies. The EU-Harmonised Standard Operating Procedure for determination of lipophilic marine biotoxins in molluscs by LC-MS/MS was followed, and the results obtained from the analysis of eighteen samples from three different locations that showed the presence of PnTXs and SPXs are presented and discussed. Concentrations of PnTX-G and SPX-1 ranged from 1.8 to 3.1 µg/kg and 1.2 to 6.9 µg/kg, respectively, and PnTX-A was detected in the group of samples with higher levels of PnTX-G after a solid phase extraction (SPE) step used for the concentration of extracts.
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