1
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Pelkonen O, Abass K, Parra Morte JM, Panzarea M, Testai E, Rudaz S, Louisse J, Gundert-Remy U, Wolterink G, Jean-Lou CM D, Coecke S, Bernasconi C. Metabolites in the regulatory risk assessment of pesticides in the EU. Front Toxicol 2023; 5:1304885. [PMID: 38188093 PMCID: PMC10770266 DOI: 10.3389/ftox.2023.1304885] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Accepted: 11/30/2023] [Indexed: 01/09/2024] Open
Abstract
A large majority of chemicals is converted into metabolites through xenobiotic-metabolising enzymes. Metabolites may present a spectrum of characteristics varying from similar to vastly different compared with the parent compound in terms of both toxicokinetics and toxicodynamics. In the pesticide arena, the role of metabolism and metabolites is increasingly recognised as a significant factor particularly for the design and interpretation of mammalian toxicological studies and in the toxicity assessment of pesticide/metabolite-associated issues for hazard characterization and risk assessment purposes, including the role of metabolites as parts in various residues in ecotoxicological adversities. This is of particular relevance to pesticide metabolites that are unique to humans in comparison with metabolites found in in vitro or in vivo animal studies, but also to disproportionate metabolites (quantitative differences) between humans and mammalian species. Presence of unique or disproportionate metabolites may underlie potential toxicological concerns. This review aims to present the current state-of-the-art of comparative metabolism and metabolites in pesticide research for hazard and risk assessment, including One Health perspectives, and future research needs based on the experiences gained at the European Food Safety Authority.
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Affiliation(s)
- Olavi Pelkonen
- Research Unit of Biomedicine, Pharmacology and Toxicology, University of Oulu, Oulu, Finland
| | - Khaled Abass
- Department of Environmental Health Sciences, College of Health Sciences, University of Sharjah, Sharjah, United Arab Emirates
- Sharjah Institute for Medical Research (SIMR), University of Sharjah, Sharjah, United Arab Emirates
- Research Unit of Biomedicine and Internal Medicine, Faculty of Medicine, University of Oulu, Oulu, Finland
| | | | | | - Emanuela Testai
- Mechanisms, Biomarkers and Models Unit, Environment and Health Department, Istituto Superiore di Sanità, Rome, Italy
| | - Serge Rudaz
- School of Pharmaceutical Sciences, University of Geneva, CMU, Geneva, Switzerland
| | - Jochem Louisse
- EFSA, European Food Safety Authority, Parma, Italy
- Wageningen Food Safety Research (WFSR), Wageningen, Netherlands
| | - Ursula Gundert-Remy
- Institute of Clinical Pharmacology and Toxicology, Charité–Universitätsmedizin Berlin, Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Gerrit Wolterink
- Centre for Prevention, Lifestyle and Health, National Institute for Public Health and the Environment (RIVM), Bilthoven, Netherlands
| | | | - Sandra Coecke
- European Commission, Joint Research Centre (JRC), Ispra, Italy
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2
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Svendsen C, Whaley P, Vist GE, Husøy T, Beronius A, Consiglio ED, Druwe I, Hartung T, Hatzi VI, Hoffmann S, Hooijmans CR, Machera K, Robinson JF, Roggen E, Rooney AA, Roth N, Spilioti E, Spyropoulou A, Tcheremenskaia O, Testai E, Vinken M, Mathisen GH. Protocol for designing INVITES-IN, a tool for assessing the internal validity of in vitro studies. Evid Based Toxicol 2023; 1:1-15. [PMID: 38264543 PMCID: PMC10805239 DOI: 10.1080/2833373x.2023.2232415] [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] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 06/19/2023] [Accepted: 06/19/2023] [Indexed: 01/25/2024]
Abstract
This protocol describes the design and development of a tool for evaluation of the internal validity of in vitro studies, which is needed to include the data as evidence in systematic reviews and chemical risk assessments. The tool will be designed specifically to be applied to cell culture studies, including, but not restricted to, studies meeting the new approach methodology (NAM) definition. The tool is called INVITES-IN (IN VITro Experimental Studies INternal validity). In this protocol, three of the four studies that will be performed to create the release version of INVITES-IN are described. In the first study, evaluation of existing assessment tools will be combined with focus group discussions to identify how characteristics of the design or conduct of an in vitro study can affect its internal validity. Bias domains and items considered to be of relevance for in vitro studies will be identified. In the second study, group agreement on internal validity domains and items of importance for in vitro studies will be identified via a modified Delphi methodology. In the third study, the draft version of the tool will be created, based on the data on relevance and importance of bias domains and items collected in Studies 1 and 2. A separate protocol will be prepared for the fourth study, which includes the user testing and validation of the tool, and collection of users' experience.
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Affiliation(s)
- Camilla Svendsen
- Norwegian Scientific Committee for Food and Environment, Norwegian Institute of Public Health, Oslo, Norway
- Department of Chemical Toxicology, Norwegian Institute of Public Health, Oslo, Norway
| | - Paul Whaley
- Norwegian Scientific Committee for Food and Environment, Norwegian Institute of Public Health, Oslo, Norway
- Lancaster Environment Centre, Lancaster University, Lancaster, UK
| | - Gunn E. Vist
- Norwegian Scientific Committee for Food and Environment, Norwegian Institute of Public Health, Oslo, Norway
- Division for Health Services, Norwegian Institute of Public Health, Oslo, Norway
| | - Trine Husøy
- Norwegian Scientific Committee for Food and Environment, Norwegian Institute of Public Health, Oslo, Norway
- Department of Food Safety, Norwegian Institute of Public Health, Oslo, Norway
| | - Anna Beronius
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Emma Di Consiglio
- Environment & Health Department, Italian National Institute of Health (ISS), Rome, Italy
| | - Ingrid Druwe
- United States Environmental Protection Agency, Office of Research and Development, Center for Public Health and Environmental Assessments, Research Triangle Park, NC, USA
| | - Thomas Hartung
- Center for Alternatives to Animal Testing (CAAT), Johns Hopkins University, Bloomberg School of Public Health, Baltimore, MD, USA
- CAAT Europe, University of Konstanz, Konstanz, Germany
| | - Vasiliki I. Hatzi
- Laboratory of Toxicological Control of Pesticides, Scientific Directorate of Pesticides’ Control and Phytopharmacy, Benaki Phytopathological Institute, Kifissia, Greece
| | - Sebastian Hoffmann
- Evidence-Based Toxicology Collaboration (EBTC), Johns Hopkins University, Bloomberg School of Public Health, Baltimore, MD, USA
- SEH consulting + services, Paderborn, Germany
| | - Carlijn R. Hooijmans
- Department of Anesthesiology, Pain and Palliative Care, Radboud University Medical Centre, Nijmegen, Netherlands
| | - Kyriaki Machera
- Laboratory of Toxicological Control of Pesticides, Scientific Directorate of Pesticides’ Control and Phytopharmacy, Benaki Phytopathological Institute, Kifissia, Greece
| | - Joshua F. Robinson
- Department of Obstetrics, Gynecology & Reproductive Sciences, University of California, San Francisco (UCSF), CA, USA
| | - Erwin Roggen
- 3Rs Management and Consulting ApS, Lyngby, Denmark
| | - Andrew A. Rooney
- Division of Translational Toxicology, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
| | - Nicolas Roth
- Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
- Swiss Centre for Applied Human Toxicology (SCAHT), Basel, Switzerland
| | - Eliana Spilioti
- Laboratory of Toxicological Control of Pesticides, Scientific Directorate of Pesticides’ Control and Phytopharmacy, Benaki Phytopathological Institute, Kifissia, Greece
| | - Anastasia Spyropoulou
- Laboratory of Toxicological Control of Pesticides, Scientific Directorate of Pesticides’ Control and Phytopharmacy, Benaki Phytopathological Institute, Kifissia, Greece
| | - Olga Tcheremenskaia
- Environment & Health Department, Italian National Institute of Health (ISS), Rome, Italy
| | - Emanuela Testai
- Environment & Health Department, Italian National Institute of Health (ISS), Rome, Italy
| | - Mathieu Vinken
- Department of Pharmaceutical and Pharmacological Sciences, Vrije Universiteit Brussel, Brussel, Belgium
| | - Gro H. Mathisen
- Norwegian Scientific Committee for Food and Environment, Norwegian Institute of Public Health, Oslo, Norway
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3
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Manganelli M, Testai E, Tazart Z, Scardala S, Codd GA. Co-Occurrence of Taste and Odor Compounds and Cyanotoxins in Cyanobacterial Blooms: Emerging Risks to Human Health? Microorganisms 2023; 11:microorganisms11040872. [PMID: 37110295 PMCID: PMC10146173 DOI: 10.3390/microorganisms11040872] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 03/23/2023] [Accepted: 03/24/2023] [Indexed: 03/31/2023] Open
Abstract
Cyanobacteria commonly form large blooms in waterbodies; they can produce cyanotoxins, with toxic effects on humans and animals, and volatile compounds, causing bad tastes and odors (T&O) at naturally occurring low concentrations. Notwithstanding the large amount of literature on either cyanotoxins or T&O, no review has focused on them at the same time. The present review critically evaluates the recent literature on cyanotoxins and T&O compounds (geosmin, 2-methylisoborneol, β-ionone and β-cyclocitral) to identify research gaps on harmful exposure of humans and animals to both metabolite classes. T&O and cyanotoxins production can be due to the same or common to different cyanobacterial species/strains, with the additional possibility of T&O production by non-cyanobacterial species. The few environmental studies on the co-occurrence of these two groups of metabolites are not sufficient to understand if and how they can co-vary, or influence each other, perhaps stimulating cyanotoxin production. Therefore, T&Os cannot reliably serve as early warning surrogates for cyanotoxins. The scarce data on T&O toxicity seem to indicate a low health risk (but the inhalation of β-cyclocitral deserves more study). However, no data are available on the effects of combined exposure to mixtures of cyanotoxins and T&O compounds and to combinations of T&O compounds; therefore, whether the co-occurrence of cyanotoxins and T&O compounds is a health issue remains an open question.
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Affiliation(s)
- Maura Manganelli
- Istituto Superiore di Sanità, Department of Environment and Health, viale Regina Elena, 299, 00162 Rome, Italy; (E.T.); (S.S.)
- Correspondence:
| | - Emanuela Testai
- Istituto Superiore di Sanità, Department of Environment and Health, viale Regina Elena, 299, 00162 Rome, Italy; (E.T.); (S.S.)
| | - Zakaria Tazart
- Department of Food Sciences and Nutrition, University of Malta, 2080 Msida, Malta;
| | - Simona Scardala
- Istituto Superiore di Sanità, Department of Environment and Health, viale Regina Elena, 299, 00162 Rome, Italy; (E.T.); (S.S.)
| | - Geoffrey A. Codd
- School of Natural Sciences, University of Stirling, Stirling FK9 4LA, UK;
- School of Life Sciences, University of Dundee, Dundee DD1 5EH, UK
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4
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Algharably EA, Di Consiglio E, Testai E, Pistollato F, Bal-Price A, Najjar A, Kreutz R, Gundert-Remy U. Prediction of in vivo prenatal chlorpyrifos exposure leading to developmental neurotoxicity in humans based on in vitro toxicity data by quantitative in vitro-in vivo extrapolation. Front Pharmacol 2023; 14:1136174. [PMID: 36959852 PMCID: PMC10027916 DOI: 10.3389/fphar.2023.1136174] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Accepted: 02/23/2023] [Indexed: 03/09/2023] Open
Abstract
Introduction: Epidemiological studies in children suggested that in utero exposure to chlorpyrifos (CPF), an organophosphate insecticide, may cause developmental neurotoxicity (DNT). We applied quantitative in vitro-in vivo extrapolation (QIVIVE) based on in vitro concentration and non-choline esterase-dependent effects data combined with Benchmark dose (BMD) modelling to predict oral maternal CPF exposure during pregnancy leading to fetal brain effect concentration. By comparing the results with data from epidemiological studies, we evaluated the contribution of the in vitro endpoints to the mode of action (MoA) for CPF-induced DNT. Methods: A maternal-fetal PBK model built in PK-Sim® was used to perform QIVIVE predicting CPF concentrations in a pregnant women population at 15 weeks of gestation from cell lysate concentrations obtained in human induced pluripotent stem cell-derived neural stem cells undergoing differentiation towards neurons and glia exposed to CPF for 14 days. The in vitro concentration and effect data were used to perform BMD modelling. Results: The upper BMD was converted into maternal doses which ranged from 3.21 to 271 mg/kg bw/day. Maternal CPF blood levels from epidemiological studies reporting DNT findings in their children were used to estimate oral CPF exposure during pregnancy using the PBK model. It ranged from 0.11 to 140 μg/kg bw/day. Discussion: The effective daily intake doses predicted from the in vitro model were several orders of magnitude higher than exposures estimated from epidemiological studies to induce developmental non-cholinergic neurotoxic responses, which were captured by the analyzed in vitro test battery. These were also higher than the in vivo LOEC for cholinergic effects. Therefore, the quantitative predictive value of the investigated non-choline esterase-dependent effects, although possibly relevant for other chemicals, may not adequately represent potential key events in the MoA for CPF-associated DNT.
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Affiliation(s)
- Engi Abdelhady Algharably
- Institute of Clinical Pharmacology and Toxicology, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
- *Correspondence: Engi Abdelhady Algharably,
| | - Emma Di Consiglio
- Mechanisms, Biomarkers and Models Unit, Environment and Health Department, Istituto Superiore di Sanità, Rome, Italy
| | - Emanuela Testai
- Mechanisms, Biomarkers and Models Unit, Environment and Health Department, Istituto Superiore di Sanità, Rome, Italy
| | | | - Anna Bal-Price
- European Commission, Joint Research Center (JRC), Ispra, Italy
| | | | - Reinhold Kreutz
- Institute of Clinical Pharmacology and Toxicology, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Ursula Gundert-Remy
- Institute of Clinical Pharmacology and Toxicology, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
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5
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Akcaalan R, Devesa-Garriga R, Dietrich A, Steinhaus M, Dunkel A, Mall V, Manganelli M, Scardala S, Testai E, Codd GA, Kozisek F, Antonopoulou M, Ribeiro ARL, Sampaio MJ, Hiskia A, Triantis TM, Dionysiou DD, Puma GL, Lawton L, Edwards C, Andersen HR, Fatta-Kassinos D, Karaolia P, Combès A, Panksep K, Zervou SK, Albay M, Köker L, Chernova E, Iliakopoulou S, Varga E, Visser PM, Gialleli AI, Zengin Z, Deftereos N, Miskaki P, Christophoridis C, Paraskevopoulou A, Lin TF, Zamyadi A, Dimova G, Kaloudis T. Water taste and odor (T&O): Challenges, gaps and solutions from a perspective of the WaterTOP network. Chemical Engineering Journal Advances 2022. [DOI: 10.1016/j.ceja.2022.100409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
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6
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Turco L, Santori N, Buratti FM, Dorne JLCM, Testai E. Congeners-Specific Intestinal Absorption Of Microcystins In An In Vitro 3D Human Intestinal Epithelium: The Role Of Influx/Efflux Transporters. Front Toxicol 2022; 4:883063. [PMID: 35990858 PMCID: PMC9388863 DOI: 10.3389/ftox.2022.883063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Accepted: 03/28/2022] [Indexed: 11/18/2022] Open
Abstract
Microcystins constitute a group of over 200 variants and are increasingly considered as emerging toxins in food and feed safety, particularly with regards to sea-food and fish consumption. Toxicity of MCs is congener-specific, being characterised by different acute potencies, likely related to the differential activity of metabolic enzymes and transporters proteins involved in their cellular uptake. However, the active transport of MCs across intestinal membranes has not been fully elucidated. Our results, obtained using a fit for purpose 3D human reconstructed intestinal epithelium, provide new information on the complex mechanisms involved in the absorption of 5 MC variants’: it is indeed characterised by the equilibrium between uptake and extrusion, since the selected congeners are substrates of both influx and efflux proteins. In the range of tested nominal concentrations (10–40 µM) fully representative of relevant exposure scenarios, none of the active tested transporters were saturated. The comparison of permeability (Papp) values of MCs variants highlighted a dose independent relationship for MC-LR, -YR and -RR (Papp x 10–7 ranged from 2.95 to 3.54 cm/s), whereas -LW and–LF showed a dose dependent increase in permeability reaching Papp values which were similar to the other congeners at 40 µM. MC-RR, -LR, -YR show absorption values around 5% of the administered dose. Due to their lipophilicity, MC-LW and -LF were also detected within the cellular compartment. The intestinal uptake was only partially attributable to OATPs, suggesting the involvement of additional transporters. Regarding the efflux proteins, MCs are not P-gp substrates whereas MRP2 and to a lesser extent Breast cancer resistance protein are active in their extrusion. Despite the presence of GST proteins, as an indication of metabolic competence, in the intestinal tissue, MC-conjugates were never detected in our experimental settings.
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Affiliation(s)
- Laura Turco
- Istituto Superiore Di Sanità, Environment & Health Dept, Rome, Italy
- *Correspondence: Laura Turco,
| | - Nicoletta Santori
- Istituto Superiore Di Sanità, Environment & Health Dept, Rome, Italy
| | - Franca M. Buratti
- Istituto Superiore Di Sanità, Environment & Health Dept, Rome, Italy
| | | | - Emanuela Testai
- Istituto Superiore Di Sanità, Environment & Health Dept, Rome, Italy
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7
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Algharably EA, Di Consiglio E, Testai E, Pistollato F, Mielke H, Gundert-Remy U. In Vitro- In Vivo Extrapolation by Physiologically Based Kinetic Modeling: Experience With Three Case Studies and Lessons Learned. Front Toxicol 2022; 4:885843. [PMID: 35924078 PMCID: PMC9340473 DOI: 10.3389/ftox.2022.885843] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 05/09/2022] [Indexed: 11/27/2022] Open
Abstract
Physiologically based kinetic (PBK) modeling has been increasingly used since the beginning of the 21st century to support dose selection to be used in preclinical and clinical safety studies in the pharmaceutical sector. For chemical safety assessment, the use of PBK has also found interest, however, to a smaller extent, although an internationally agreed document was published already in 2010 (IPCS/WHO), but at that time, PBK modeling was based mostly on in vivo data as the example in the IPCS/WHO document indicates. Recently, the OECD has published a guidance document which set standards on how to characterize, validate, and report PBK models for regulatory purposes. In the past few years, we gained experience on using in vitro data for performing quantitative in vitro–in vivo extrapolation (QIVIVE), in which biokinetic data play a crucial role to obtain a realistic estimation of human exposure. In addition, pharmaco-/toxicodynamic aspects have been introduced into the approach. Here, three examples with different drugs/chemicals are described, in which different approaches have been applied. The lessons we learned from the exercise are as follows: 1) in vitro conditions should be considered and compared to the in vivo situation, particularly for protein binding; 2) in vitro inhibition of metabolizing enzymes by the formed metabolites should be taken into consideration; and 3) it is important to extrapolate from the in vitro measured intracellular concentration and not from the nominal concentration to the tissue/organ concentration to come up with an appropriate QIVIVE for the relevant adverse effects.
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Affiliation(s)
- Engi Abdelhady Algharably
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Institute of Clinical Pharmacology and Toxicology, Berlin, Germany
| | - Emma Di Consiglio
- Mechanisms, Biomarkers and Models Unit, Environment and Health Department, Istituto Superiore di Sanità, Rome, Italy
| | - Emanuela Testai
- Mechanisms, Biomarkers and Models Unit, Environment and Health Department, Istituto Superiore di Sanità, Rome, Italy
| | | | - Hans Mielke
- Federal Institute for Risk Assessment, Berlin, Germany
| | - Ursula Gundert-Remy
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Institute of Clinical Pharmacology and Toxicology, Berlin, Germany.,Federal Institute for Risk Assessment, Berlin, Germany
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8
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Hernandez‐Jerez AF, Adriaanse P, Aldrich A, Berny P, Coja T, Duquesne S, Focks A, Marinovich M, Millet M, Pelkonen O, Pieper S, Tiktak A, Topping CJ, Widenfalk A, Wilks M, Wolterink G, Gundert‐Remy U, Louisse J, Rudaz S, Testai E, Lostia A, Dorne J, Parra Morte JM. Scientific Opinion of the Scientific Panel on Plant Protection Products and their Residues (PPR Panel) on testing and interpretation of comparative in vitro metabolism studies. EFSA J 2021; 19:e06970. [PMID: 34987623 PMCID: PMC8696562 DOI: 10.2903/j.efsa.2021.6970] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
EFSA asked the Panel on Plant Protection Products and their residues to deliver a Scientific Opinion on testing and interpretation of comparative in vitro metabolism studies for both new active substances and existing ones. The main aim of comparative in vitro metabolism studies of pesticide active substances is to evaluate whether all significant metabolites formed in the human in vitro test system, as a surrogate of the in vivo situation, are also present at comparable level in animal species tested in toxicological studies and, therefore, if their potential toxicity has been appropriately covered by animal studies. The studies may also help to decide which animal model, with regard to a particular compound, is the most relevant for humans. In the experimental strategy, primary hepatocytes in suspension or culture are recommended since hepatocytes are considered the most representative in vitro system for prediction of in vivo metabolites. The experimental design of 3 × 3 × 3 (concentrations, time points, technical replicates, on pooled hepatocytes) will maximise the chance to identify unique (UHM) and disproportionate (DHM) human metabolites. When DHM and UHM are being assessed, test item-related radioactivity recovery and metabolite profile are the most important parameters. Subsequently, structural characterisation of the assigned metabolites is performed with appropriate analytical techniques. In toxicological assessment of metabolites, the uncertainty factor approach is the first alternative to testing option, followed by new approach methodologies (QSAR, read-across, in vitro methods), and only if these fail, in vivo animal toxicity studies may be performed. Knowledge of in vitro metabolites in human and animal hepatocytes would enable toxicological evaluation of all metabolites of concern, and, furthermore, add useful pieces of information for detection and evaluation of metabolites in different matrices (crops, livestock, environment), improve biomonitoring efforts via better toxicokinetic understanding, and ultimately, develop regulatory schemes employing physiologically based or physiology-mimicking in silico and/or in vitro test systems to anticipate the exposure of humans to potentially hazardous substances in plant protection products.
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More SJ, Bampidis V, Benford D, Bragard C, Hernandez‐Jerez A, Bennekou SH, Halldorsson TI, Koutsoumanis KP, Lambré C, Machera K, Naegeli H, Nielsen SS, Schlatter JR, Schrenk D, Silano V, Turck D, Younes M, Benfenati E, Crépet A, Te Biesebeek JD, Testai E, Dujardin B, Dorne JLCM, Hogstrand C. Guidance Document on Scientific criteria for grouping chemicals into assessment groups for human risk assessment of combined exposure to multiple chemicals. EFSA J 2021; 19:e07033. [PMID: 34976164 PMCID: PMC8681880 DOI: 10.2903/j.efsa.2021.7033] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
This guidance document provides harmonised and flexible methodologies to apply scientific criteria and prioritisation methods for grouping chemicals into assessment groups for human risk assessment of combined exposure to multiple chemicals. In the context of EFSA's risk assessments, the problem formulation step defines the chemicals to be assessed in the terms of reference usually through regulatory criteria often set by risk managers based on legislative requirements. Scientific criteria such as hazard-driven criteria can be used to group these chemicals into assessment groups. In this guidance document, a framework is proposed to apply hazard-driven criteria for grouping of chemicals into assessment groups using mechanistic information on toxicity as the gold standard where available (i.e. common mode of action or adverse outcome pathway) through a structured weight of evidence approach. However, when such mechanistic data are not available, grouping may be performed using a common adverse outcome. Toxicokinetic data can also be useful for grouping, particularly when metabolism information is available for a class of compounds and common toxicologically relevant metabolites are shared. In addition, prioritisation methods provide means to identify low-priority chemicals and reduce the number of chemicals in an assessment group. Prioritisation methods include combined risk-based approaches, risk-based approaches for single chemicals and exposure-driven approaches. Case studies have been provided to illustrate the practical application of hazard-driven criteria and the use of prioritisation methods for grouping of chemicals in assessment groups. Recommendations for future work are discussed.
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10
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Darney K, Lautz LS, Béchaux C, Wiecek W, Testai E, Amzal B, Dorne JLCM. Human variability in polymorphic CYP2D6 metabolism: Implications for the risk assessment of chemicals in food and emerging designer drugs. Environ Int 2021; 156:106760. [PMID: 34256299 DOI: 10.1016/j.envint.2021.106760] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [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: 12/15/2020] [Revised: 07/03/2021] [Accepted: 07/04/2021] [Indexed: 06/13/2023]
Abstract
The major human cytochrome P450 CYP2D6 isoform enzyme plays important roles in the liver and in the brain with regards to xenobiotic metabolism. Xenobiotics as CYP2D6 substrates include a whole range of pharmaceuticals, pesticides and plant alkaloids to cite but a few. In addition, a number of endogenous compounds have been shown to be substrates of CYP2D6 including trace amines in the brain such as tyramine and 5-methoxytryptamine as well as anandamide and progesterone. Because of the polymorphic nature of CYP2D6, considerable inter-phenotypic and inter-ethnic differences in the pharmaco/toxicokinetics (PK/TK) and metabolism of CYP2D6 substrates exist with potential consequences on the pharmacology and toxicity of chemicals. Here, large extensive literature searches have been performed to collect PK data from published human studies for a wide range of pharmaceutical probe substrates and investigate human variability in CYP2D6 metabolism. The computed kinetic parameters resulted in the largest open source database, quantifying inter-phenotypic differences for the kinetics of CYP2D6 probe substrates in Caucasian and Asian populations, to date. The database is available in supplementary material (CYPD6 DB) and EFSA knowledge junction (DOI to added). Subsequently, meta-analyses using a hierarchical Bayesian model for markers of chronic oral exposure (oral clearance, area under the plasma concentration time curve) and acute oral exposure (maximum plasma concentration (Cmax) provided estimates of inter-phenotypic differences and CYP2D6-related uncertainty factors (UFs) for chemical risk assessment in Caucasian and Asian populations classified as ultra-rapid (UM), extensive (EMs), intermediate (IMs) and poor metabolisers (PMs). The model allowed the integration of inter-individual (i.e. inter-phenotypic and inter-ethnic), inter-compound and inter-study variability together with uncertainty in each PK parameter. Key findings include 1. Higher frequencies of PMs in Caucasian populations compared to Asian populations (>8% vs 1-2%) for which EM and IM were the most frequent phenotype. 2. Large inter-phenotypic differences in PK parameters for Caucasian EMs (coefficients of variation (CV) > 50%) compared with Caucasian PMs and Asian EMs and IMs (i.e CV < 40%). 3. Inter-phenotypic PK differences between EMs and PMs in Caucasian populations increase with the quantitative contribution of CYP2D6 for the metabolism (fm) for a range of substrates (fmCYP2D6 range: 20-95% of dose) (range: 1-54) to a much larger extent than those for Asian populations (range: 1-4). 4. Exponential meta-regressions between FmCYP2D6 in EMs and inter-phenotypic differences were also shown to differ between Caucasian and Asian populations as well as CYP2D6-related UFs. Finally, implications of these results for the risk assessment of food chemicals and emerging designer drugs of public health concern, as CYP2D6 substrates, are highlighted and include the integration of in vitro metabolism data and CYP2D6-variability distributions for the development of quantitative in vitro in vivo extrapolation models.
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Affiliation(s)
- K Darney
- French Agency for Food, Environmental and Occupational Health & Safety (ANSES), 14 rue Pierre et Marie Curie, 94701 Maisons-Alfort, France
| | - L S Lautz
- French Agency for Food, Environmental and Occupational Health & Safety (ANSES), 14 rue Pierre et Marie Curie, 94701 Maisons-Alfort, France
| | - C Béchaux
- French Agency for Food, Environmental and Occupational Health & Safety (ANSES), 14 rue Pierre et Marie Curie, 94701 Maisons-Alfort, France
| | - W Wiecek
- Certara UK Ltd, Audrey House, 5th Floor, 16-20 Ely Place, London EC1N 6SN, United Kingdom
| | - E Testai
- Istituto Superior di Sanità, Viale Regina Elena 299, 00161 Rome, Italy
| | - B Amzal
- Quinten Health, 75017 Paris, France
| | - J L C M Dorne
- European Food Safety Authority, Via Carlo Magno,1A, 43126 Parma, Italy.
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11
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Tazart Z, Manganelli M, Scardala S, Buratti FM, Nigro Di Gregorio F, Douma M, Mouhri K, Testai E, Loudiki M. Remediation Strategies to Control Toxic Cyanobacterial Blooms: Effects of Macrophyte Aqueous Extracts on Microcystis aeruginosa (Growth, Toxin Production and Oxidative Stress Response) and on Bacterial Ectoenzymatic Activities. Microorganisms 2021; 9:microorganisms9081782. [PMID: 34442861 PMCID: PMC8400474 DOI: 10.3390/microorganisms9081782] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 08/11/2021] [Accepted: 08/12/2021] [Indexed: 11/16/2022] Open
Abstract
Increasing toxic cyanobacterial blooms in freshwater demand environmentally friendly solutions to control their growth and toxicity, especially in arid countries, where most drinking water is produced from surface reservoirs. We tested the effects of macrophyte allelochemicals on Microcystis aeruginosa and on the fundamental role of bacteria in nutrient recycling. The effects of Ranunculus aquatilis aqueous extract, the most bioactive of four Moroccan macrophyte extracts, were tested in batch systems on M. aeruginosa growth, toxin production and oxidative stress response and on the ectoenzymatic activity associated with the bacterial community. M. aeruginosa density was reduced by 82.18%, and a significant increase in oxidative stress markers was evidenced in cyanobacterial cells. Microcystin concentration significantly decreased, and they were detected only intracellularly, an important aspect in managing toxic blooms. R. aquatilis extract had no negative effects on associated bacteria. These results confirm a promising use of macrophyte extracts, but they cannot be generalized. The use of the extract on other toxic strains, such as Planktothrix rubescens, Raphidiopsis raciborskii and Chrysosporum ovalisporum, caused a reduction in growth rate but not in cyanotoxin content, increasing toxicity. The need to assess species-specific cyanobacteria responses to verify the efficacy and safety of the extracts for human health and the environment is highlighted.
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Affiliation(s)
- Zakaria Tazart
- Istituto Superiore di Sanità, Environment & Health Department, Viale Regina Elena, 299, 00161 Rome, Italy; (Z.T.); (S.S.); (F.M.B.); (F.N.D.G.); (E.T.)
- Water, Biodiversity and Climate Change Laboratory, Phycology, Biotechnology and Environmental Toxicology Research Unit, Faculty of Sciences Semlalia, Cadi Ayyad University, Av. Prince My Abdellah P.O. Box 2390, Marrakech 40000, Morocco; (K.M.); (M.L.)
| | - Maura Manganelli
- Istituto Superiore di Sanità, Environment & Health Department, Viale Regina Elena, 299, 00161 Rome, Italy; (Z.T.); (S.S.); (F.M.B.); (F.N.D.G.); (E.T.)
- Correspondence:
| | - Simona Scardala
- Istituto Superiore di Sanità, Environment & Health Department, Viale Regina Elena, 299, 00161 Rome, Italy; (Z.T.); (S.S.); (F.M.B.); (F.N.D.G.); (E.T.)
| | - Franca Maria Buratti
- Istituto Superiore di Sanità, Environment & Health Department, Viale Regina Elena, 299, 00161 Rome, Italy; (Z.T.); (S.S.); (F.M.B.); (F.N.D.G.); (E.T.)
| | - Federica Nigro Di Gregorio
- Istituto Superiore di Sanità, Environment & Health Department, Viale Regina Elena, 299, 00161 Rome, Italy; (Z.T.); (S.S.); (F.M.B.); (F.N.D.G.); (E.T.)
| | - Mountasser Douma
- Environmental Microbiology and Toxicology Research Unit, Polydisciplinary Faculty of Khouribga (FPK), Sultan Moulay Slimane University, Beni Mellal 23000, Morocco;
| | - Khadija Mouhri
- Water, Biodiversity and Climate Change Laboratory, Phycology, Biotechnology and Environmental Toxicology Research Unit, Faculty of Sciences Semlalia, Cadi Ayyad University, Av. Prince My Abdellah P.O. Box 2390, Marrakech 40000, Morocco; (K.M.); (M.L.)
| | - Emanuela Testai
- Istituto Superiore di Sanità, Environment & Health Department, Viale Regina Elena, 299, 00161 Rome, Italy; (Z.T.); (S.S.); (F.M.B.); (F.N.D.G.); (E.T.)
| | - Mohammed Loudiki
- Water, Biodiversity and Climate Change Laboratory, Phycology, Biotechnology and Environmental Toxicology Research Unit, Faculty of Sciences Semlalia, Cadi Ayyad University, Av. Prince My Abdellah P.O. Box 2390, Marrakech 40000, Morocco; (K.M.); (M.L.)
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12
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Barile FA, Berry SC, Blaauboer B, Boobis A, Bolt HM, Borgert C, Dekant W, Dietrich D, Domingo JL, Galli CL, Gori GB, Greim H, Hengstler JG, Heslop-Harrison P, Kacew S, Marquardt H, Mally A, Pelkonen O, Savolainen K, Testai E, Tsatsakis A, Vermeulen NP. The EU chemicals strategy for sustainability: in support of the BfR position. Arch Toxicol 2021; 95:3133-3136. [PMID: 34363510 PMCID: PMC8380226 DOI: 10.1007/s00204-021-03125-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 07/21/2021] [Indexed: 12/14/2022]
Abstract
The EU chemicals strategy for sustainability (CSS) asserts that both human health and the environment are presently threatened and that further regulation is necessary. In a recent Guest Editorial, members of the German competent authority for risk assessment, the BfR, raised concerns about the scientific justification for this strategy. The complexity and interdependence of the networks of regulation of chemical substances have ensured that public health and wellbeing in the EU have continuously improved. A continuous process of improvement in consumer protection is clearly desirable but any initiative directed towards this objective must be based on scientific knowledge. It must not confound risk with other factors in determining policy. This conclusion is fully supported in the present Commentary including the request to improve both, data collection and the time-consuming and bureaucratic procedures that delay the publication of regulations.
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Affiliation(s)
- Frank A Barile
- College of Pharmacy and Health Sciences, St John's University, Queens, NY, USA
| | | | - Bas Blaauboer
- Division of Toxicology, Institute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands
| | - Alan Boobis
- National Heart and Lung Institute, Imperial College, London, UK
| | - Herrmann M Bolt
- Leibniz Research Centre for Working Environment and Human Factors (IfADo), TU Dortmund, Dortmund, Germany
| | | | - Wolfgang Dekant
- Department of Toxicology, University of Würzburg, Würzburg, Germany
| | - Daniel Dietrich
- Faculty of Biology, University of Konstanz, Konstanz, Germany
| | - Jose L Domingo
- Laboratory of Toxicology and Environmental Health, School of Medicine, IISPV, Universitat 'Rovira I Virgili', Reus, Spain
| | - Corrado L Galli
- Department of Pharmacological and Biomolecular Sciences, University of Milan, Milan, Italy
| | | | - Helmut Greim
- Technical University of Munich, Munich, Germany.
| | - Jan G Hengstler
- Leibniz Research Centre for Working Environment and Human Factors (IfADo), TU Dortmund, Dortmund, Germany
| | - Pat Heslop-Harrison
- Department of Genetics and Genome Biology, University of Leicester, Leicester, UK
| | - Sam Kacew
- McLaughlin Centre for Risk Assessment, University of Ottawa, Ottawa, Canada
| | | | - Angela Mally
- Department of Toxicology, University of Würzburg, Würzburg, Germany
| | - Olavi Pelkonen
- Department of Pharmacology and Toxicology, University of Oulu, Oulu, Finland
| | - Kai Savolainen
- Nanosafety Research Centre, Finnish Institute of Occupational Health, Helsinki, Finland
| | - Emanuela Testai
- Environment and Health Department, Instituto Superiore Di Sanità, Rome, Italy
| | | | - Nico P Vermeulen
- Department of Chemistry and Pharmaceutical Sciences, Vrije Universiteit, Amsterdam, The Netherlands
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13
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Di Consiglio E, Darney K, Buratti FM, Turco L, Vichi S, Testai E, Lautz LS, Dorne JLCM. Human Variability in Carboxylesterases and carboxylesterase-related Uncertainty Factors for Chemical Risk Assessment. Toxicol Lett 2021; 350:162-170. [PMID: 34256091 DOI: 10.1016/j.toxlet.2021.07.005] [Citation(s) in RCA: 9] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 06/24/2021] [Accepted: 07/08/2021] [Indexed: 10/20/2022]
Abstract
Carboxylesterases (CES) are an important class of enzymes involved in the hydrolysis of a range of chemicals and show large inter-individual variability in vitro. An extensive literature search was performed to identify in vivo probe substrates for CES1 and CES2 together with their protein content and enzymatic activity. Human pharmacokinetic (PK) data on Cmax, clearance, and AUC were extracted from 89 publications and Bayesian meta-analysis was performed using a hierarchical model to derive CES-related variability distributions and related uncertainty factors (UF). The CES-related variability indicated that 97.5% of healthy adults are covered by the kinetic default UF (3.16), except for clopidogrel and dabigatran etexilate. Clopidogrel is metabolised for a small amount by the polymorphic CYP2C19, which can have an impact on the overall pharmacokinetics, while the variability seen for dabigatran etexilate might be due to differences in the absorption, since this can be influenced by food intake. The overall CES-related variability was moderate to high in vivo (<CV 50%), which might be due to possible polymorphism in the enzyme but also to the small sample size available per chemical. The presented CES-related variability can be used in combination with in vitro data to derive pathway-specific distributions.
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Affiliation(s)
- E Di Consiglio
- Istituto Superiore di Sanità, Environment & Health Department, Viale Regina Elena 299, Roma, Italy
| | - K Darney
- Risk Assessment Department, French Agency for Food, Environmental and Occupational Health & Safety (Anses), 14 rue Pierre et Marie Curie, Maisons-Alfort, F-94701, France.
| | - F M Buratti
- Istituto Superiore di Sanità, Environment & Health Department, Viale Regina Elena 299, Roma, Italy
| | - L Turco
- Istituto Superiore di Sanità, Environment & Health Department, Viale Regina Elena 299, Roma, Italy
| | - S Vichi
- Istituto Superiore di Sanità, Environment & Health Department, Viale Regina Elena 299, Roma, Italy
| | - E Testai
- Istituto Superiore di Sanità, Environment & Health Department, Viale Regina Elena 299, Roma, Italy
| | - L S Lautz
- Risk Assessment Department, French Agency for Food, Environmental and Occupational Health & Safety (Anses), 14 rue Pierre et Marie Curie, Maisons-Alfort, F-94701, France; Wageningen Food Safety Research, Akkermaalsbos 2, 6708WB, Wageningen, the Netherlands
| | - J L C M Dorne
- European Food Safety Authority, Via Carlo Magno 1A, 43126, Parma, Italy
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14
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Carducci AL, Agodi A, Ancona C, Angelini P, Bagordo F, Barbone F, Birbaum L, Carreri V, Casuccio A, Conti A, Conversano M, De Donno A, De Giglio O, Desiante F, Di Pietro A, Dogliotti E, Donato F, Fara GM, Fiore M, Forastiere F, Giammanco G, Izzotti A, Montagna MT, Oliveri Conti G, Petronio MG, Sciacca S, Signorelli C, Testai E, Verani M, Vinceti M, Vitale F, Ferrante M, Adani G, Berghella L, Calia C, Calzolari R, Canale A, Castiglione D, Conti A, Copat C, Cristaldi A, Cuffari G, Coronel Vargas G, De Vita E, De Nard F, Federigi I, Filippini T, Grasso A, Leonardi N, Letzgus M, Lo Bianco G, Mazzucco W, Nicolosi I, Orlandi P, Paladino G, Pizzo S, Pousis C, Raffo M, Rivolta S, Scarpitta F, Trani G, Triggiano F, Tumbarello A, Vecchio V, Zuccarello P, Vassallo M. Impact of the environment on the health: From theory to practice. Environ Res 2021; 194:110517. [PMID: 33271142 DOI: 10.1016/j.envres.2020.110517] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [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: 10/16/2020] [Revised: 11/18/2020] [Accepted: 11/19/2020] [Indexed: 06/12/2023]
Abstract
The Erice 56 Charter titled "Impact of the environment on the health: from theory to practice" was unanimously approved at the end of the 56th course of the "International School of Epidemiology and Preventive Medicine G. D'Alessandro" held from 3rd to November 7, 2019 in Erice - Sicily (Italy) and promoted by the Study Group of "Environment and Health" of the Italian Society of Hygiene, Preventive Medicine and Public Health. The course, that included lectures, open discussions and guided working groups, was aimed to provide a general training on epidemiological and toxicological aspects of the environmental health impact, to be used by public health professionals for risk assessment, without forgetting the risk communications. At the end of the course 12 key points were agreed among teachers and students: they underlined the need of specific training and research, in the perspective of "One Health" and "Global Health", also facing emerging scientific and methodological issues and focusing on communication towards stakeholders. This Discussion highlight the need to improve knowledge of Health and Environment topic in all sectors of health and environmental prevention and management.
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Affiliation(s)
- A L Carducci
- Department of Biology, University of Pisa, Italy
| | - A Agodi
- Department of Medical Science, Surgical and Advanced Technologies "G.F. Ingrassia", University of Catania, Italy
| | - C Ancona
- Department of Epidemiology of the Regional Health Service, Lazio Region, Rome, Italy
| | - P Angelini
- Public Health Service, Emilia-Romagna Region, Italy
| | - F Bagordo
- Department of Biological and Environmental Sciences and Technologies, University of Salento, Italy
| | - F Barbone
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Italy
| | - L Birbaum
- Office of the Director, National Institute of Environmental Health Sciences, National Institutes of Health, Department of Health and Human Services, Research Triangle Park, NC, USA
| | - V Carreri
- Past-President of Italian Society of Hygiene (SItI), Italy
| | - A Casuccio
- Department of Health Promotion, Maternal and Infant Care, Internal Medicine and Medical Specialties, "G. D'Alessandro", University of Palermo, Italy
| | - A Conti
- Regional Agency for Environmental Protection of Sicily, Italy
| | - M Conversano
- Department of Public Health, ASL, Taranto, Italy
| | - A De Donno
- Department of Biological and Environmental Sciences and Technologies, University of Salento, Italy
| | - O De Giglio
- Department of Biomedical Sciences and Human Oncology, Section of Hygiene, University of Bari Aldo Moro, Italy
| | - F Desiante
- Department of Prevention, Local Health Authority of Taranto, Taranto, Italy
| | - A Di Pietro
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, Italy
| | - E Dogliotti
- Department of Environmental and Health. Istituto Superiore di Sanità. Rome, Italy
| | - F Donato
- Department of Medical and Surgical Specialties, Radiological Sciences, And Public Health, University of Brescia, Italy
| | - G M Fara
- International School of Epidemiology and Preventive Medicine «Giuseppe D'Alessandro», Erice, Trapani, Italy
| | - M Fiore
- Department of Medical Science, Surgical and Advanced Technologies "G.F. Ingrassia", University of Catania, Italy
| | - F Forastiere
- Department of Epidemiology of the Regional Health Service, Lazio Region, Rome, Italy
| | - G Giammanco
- International School of Epidemiology and Preventive Medicine «Giuseppe D'Alessandro», Erice, Trapani, Italy
| | - A Izzotti
- Department of Health Sciences, University of Genoa, Genoa, Italy
| | - M T Montagna
- Department of Biomedical Sciences and Human Oncology, Section of Hygiene, University of Bari Aldo Moro, Italy
| | - G Oliveri Conti
- Department of Medical Science, Surgical and Advanced Technologies "G.F. Ingrassia", University of Catania, Italy
| | - M G Petronio
- Health and Environment-Department of Prevention, Local Health Authority-Empoli, Florence, Italy
| | - S Sciacca
- Department of Medical Science, Surgical and Advanced Technologies "G.F. Ingrassia", University of Catania, Italy
| | - C Signorelli
- University Vita-Salute San Raffaele, Milan, Italy
| | - E Testai
- Istituto Superiore di Sanità, Environment & Health Dept., Rome, Italy
| | - M Verani
- Department of Biology, University of Pisa, Italy
| | - M Vinceti
- Section of Public Health, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - F Vitale
- Department of Health Promotion, Maternal and Infant Care, Internal Medicine and Medical Specialties, "G. D'Alessandro", University of Palermo, Italy
| | - M Ferrante
- Department of Medical Science, Surgical and Advanced Technologies "G.F. Ingrassia", University of Catania, Italy.
| | - G Adani
- Section of Public Health, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - L Berghella
- Section of Public Health, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - C Calia
- Department of Biomedical Sciences and Human Oncology, Section of Hygiene, University of Bari Aldo Moro, Italy
| | - R Calzolari
- Regional Agency for Environmental Protection of Sicily, Italy
| | - A Canale
- Department of Biology, University of Pisa, Italy
| | - D Castiglione
- Department of Medical Science, Surgical and Advanced Technologies "G.F. Ingrassia", University of Catania, Italy
| | - A Conti
- Regional Agency for Environmental Protection of Sicily, Italy
| | - C Copat
- Department of Medical Science, Surgical and Advanced Technologies "G.F. Ingrassia", University of Catania, Italy
| | - A Cristaldi
- Department of Medical Science, Surgical and Advanced Technologies "G.F. Ingrassia", University of Catania, Italy
| | - G Cuffari
- Regional Agency for Environmental Protection of Sicily, Italy
| | - G Coronel Vargas
- Department of Health Sciences, University of Genoa, Genoa, Italy
| | - E De Vita
- Department of Biology, University of Pisa, Italy
| | | | - I Federigi
- Department of Biology, University of Pisa, Italy
| | - T Filippini
- Section of Public Health, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - A Grasso
- Department of Medical Science, Surgical and Advanced Technologies "G.F. Ingrassia", University of Catania, Italy
| | - N Leonardi
- University Center for the Protection and Management of Natural Environments and Agrosystems (CUTGANA), University of Catania, Italy
| | | | | | - W Mazzucco
- Department of Health Promotion, Maternal and Infant Care, Internal Medicine and Medical Specialties, "G. D'Alessandro", University of Palermo, Italy
| | - I Nicolosi
- Department of Medical Science, Surgical and Advanced Technologies "G.F. Ingrassia", University of Catania, Italy
| | - P Orlandi
- Local Health Authority of Rome, Italy
| | - G Paladino
- Department of Medical Science, Surgical and Advanced Technologies "G.F. Ingrassia", University of Catania, Italy
| | - S Pizzo
- Department of Health Promotion, Maternal and Infant Care, Internal Medicine and Medical Specialties, "G. D'Alessandro", University of Palermo, Italy
| | - C Pousis
- Department of Biomedical Sciences and Human Oncology, Section of Hygiene, University of Bari Aldo Moro, Italy
| | - M Raffo
- Local Health Authority of Rome, Italy
| | | | - F Scarpitta
- Department of Health Promotion, Maternal and Infant Care, Internal Medicine and Medical Specialties, "G. D'Alessandro", University of Palermo, Italy
| | - G Trani
- Central Health Department of the Friuli Venezia Giulia Region, Trieste, Italy
| | - F Triggiano
- Department of Biomedical Sciences and Human Oncology, Section of Hygiene, University of Bari Aldo Moro, Italy
| | | | - V Vecchio
- Department of Medical Science, Surgical and Advanced Technologies "G.F. Ingrassia", University of Catania, Italy
| | - P Zuccarello
- Department of Medical Science, Surgical and Advanced Technologies "G.F. Ingrassia", University of Catania, Italy
| | - M Vassallo
- Department of Medical Science, Surgical and Advanced Technologies "G.F. Ingrassia", University of Catania, Italy
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15
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Algharably EAEH, Di Consiglio E, Testai E, Kreutz R, Gundert-Remy U. Prediction of the dose range for adverse neurological effects of amiodarone in patients from an in vitro toxicity test by in vitro-in vivo extrapolation. Arch Toxicol 2021; 95:1433-1442. [PMID: 33606068 PMCID: PMC8032623 DOI: 10.1007/s00204-021-02989-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 01/21/2021] [Indexed: 11/29/2022]
Abstract
Amiodarone is an antiarrhythmic agent inducing adverse effects on the nervous system, among others. We applied physiologically based pharmacokinetic (PBPK) modeling combined with benchmark dose modeling to predict, based on published in vitro data, the in vivo dose of amiodarone which may lead to adverse neurological effects in patients. We performed in vitro–in vivo extrapolation (IVIVE) from concentrations measured in the cell lysate of a rat brain 3D cell model using a validated human PBPK model. Among the observed in vitro effects, inhibition of choline acetyl transferase (ChAT) was selected as a marker for neurotoxicity. By reverse dosimetry, we transformed the in vitro concentration–effect relationship into in vivo effective human doses, using the calculated in vitro area under the curve (AUC) of amiodarone as the pharmacokinetic metric. The upper benchmark dose (BMDU) was calculated and compared with clinical doses eliciting neurological adverse effects in patients. The AUCs in the in vitro brain cell culture after 14-day repeated dosing of nominal concentration equal to 1.25 and 2.5 µM amiodarone were 1.00 and 1.99 µg*h/mL, respectively. The BMDU was 385.4 mg for intravenous converted to 593 mg for oral application using the bioavailability factor of 0.65 as reported in the literature. The predicted dose compares well with neurotoxic doses in patients supporting the hypothesis that impaired ChAT activity may be related to the molecular/cellular mechanisms of amiodarone neurotoxicity. Our study shows that predicting effects from in vitro data together with IVIVE can be used at the initial stage for the evaluation of potential adverse drug reactions and safety assessment in humans.
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Affiliation(s)
- Engi Abd El-Hady Algharably
- Institute of Clinical Pharmacology and Toxicology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität Zu Berlin, Berlin Institute of Health, Berlin, Germany.
| | - Emma Di Consiglio
- Istituto Superiore Di Sanità, Environment and Health Department, Mechanisms, Biomarkers and Models Unit, Rome, Italy
| | - Emanuela Testai
- Istituto Superiore Di Sanità, Environment and Health Department, Mechanisms, Biomarkers and Models Unit, Rome, Italy
| | - Reinhold Kreutz
- Institute of Clinical Pharmacology and Toxicology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität Zu Berlin, Berlin Institute of Health, Berlin, Germany.,DZHK (German Centre for Cardiovascular Research), partner site Berlin, 10115, Berlin, Germany
| | - Ursula Gundert-Remy
- Institute of Clinical Pharmacology and Toxicology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität Zu Berlin, Berlin Institute of Health, Berlin, Germany
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16
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Stipa G, Ancidoni A, Mazzola M, Testai E, Funari E, Spera C, Fanelli C, Mancini A, Vanacore N. Is Chronic Exposure to Raw Water a Possible Risk Factor for Amyotrophic Lateral Sclerosis? A Pilot Case-Control Study. Brain Sci 2021; 11:brainsci11020193. [PMID: 33562464 PMCID: PMC7914845 DOI: 10.3390/brainsci11020193] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 01/27/2021] [Accepted: 02/01/2021] [Indexed: 12/13/2022] Open
Abstract
Background: The etiopathogenesis of amyotrophic lateral sclerosis (ALS) is still largely unknown. Methods: We performed a case-control study (33 cases and 35 controls) in Umbria, Italy. We investigated associations between common lifestyle, clinical factors, as well as environmental exposures potentially implicated with ALS onset. Face-to-face interviews were carried out. All cases were recruited and diagnosed according to El Escorial criteria. Case-control comparisons were made for educational and residential status, occupational exposures, and clinical and lifestyle factors prior to cases’ dates of diagnosis. Results: Our results showed an increased risk of ALS for subjects chronically exposed to raw water use (odds ratio (OR) = 6.55, 95% confidence interval (CI): 2.24–19.12). Garden activities showed a tight association with ALS as well, very likely as a consequence of chronic raw water exposure. Indeed, we could exclude an impact for pesticides, as no significant differences were observed in pesticide exposure in the two groups interviewed. However, cases were more often exposed to fertilizers. After adjustment for age, sex, and heavy physical activities, exposure to raw water was still associated with increased ALS risk (OR = 4.74, 95% CI: 1.33–16.85). Discussion: These findings suggest an association between ALS and exposure to raw water, which should be further investigated for the presence of chemicals interfering with nervous system functionality.
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Affiliation(s)
- Giuseppe Stipa
- Clinical Neurophysiology Division, Neuroscience Department, S. Maria University Hospital, 05100 Terni, Italy; (C.F.); (A.M.)
- Correspondence:
| | - Antonio Ancidoni
- National Center for Disease Prevention and Health Promotion, National Institute of Health (ISS), 34, 00162 Roma, Italy; (A.A.); (M.M.); (N.V.)
| | - Monica Mazzola
- National Center for Disease Prevention and Health Promotion, National Institute of Health (ISS), 34, 00162 Roma, Italy; (A.A.); (M.M.); (N.V.)
| | - Emanuela Testai
- Department of Environment and Health, National Institute of Health (ISS), 299, 00161 Roma, Italy; (E.T.); (E.F.)
| | - Enzo Funari
- Department of Environment and Health, National Institute of Health (ISS), 299, 00161 Roma, Italy; (E.T.); (E.F.)
| | - Cristina Spera
- Neurology Division, Neuroscience Department, S. Maria University Hospital, 05100 Terni, Italy;
| | - Cinzia Fanelli
- Clinical Neurophysiology Division, Neuroscience Department, S. Maria University Hospital, 05100 Terni, Italy; (C.F.); (A.M.)
| | - Alessia Mancini
- Clinical Neurophysiology Division, Neuroscience Department, S. Maria University Hospital, 05100 Terni, Italy; (C.F.); (A.M.)
| | - Nicola Vanacore
- National Center for Disease Prevention and Health Promotion, National Institute of Health (ISS), 34, 00162 Roma, Italy; (A.A.); (M.M.); (N.V.)
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17
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Zuccarello P, Manganelli M, Oliveri Conti G, Copat C, Grasso A, Cristaldi A, De Angelis G, Testai E, Stefanelli M, Vichi S, Fiore M, Ferrante M. Water quality and human health: A simple monitoring model of toxic cyanobacteria growth in highly variable Mediterranean hot dry environments. Environ Res 2021; 192:110291. [PMID: 33027628 DOI: 10.1016/j.envres.2020.110291] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 08/06/2020] [Revised: 09/29/2020] [Accepted: 09/30/2020] [Indexed: 06/11/2023]
Abstract
Due to population growth, urbanization and economic development, demand for freshwater in urban areas is increasing throughout Europe. At the same time, climate change, eutrophication and pollution are affecting the availability of water supplies. Sicily, a big island in southern Italy, suffers from an increasing drought and consequently water shortage. In the last decades, in Sicilian freshwater reservoirs several Microcystis aeruginosa and more recently Planktothrix rubescens blooms were reported. The aims of the study were: (1) identify and quantify the occurring species of cyanobacteria (CB), (2) identify which parameters, among those investigated in the waters, could favor their growth, (3) set up a model to identify reservoirs that need continuous monitoring due to the presences, current or prospected, of cyanobacterial blooms and of microcystins, relevant for environmental and, consequentially, for human health. Fifteen artificial reservoirs among the large set of Sicilian artificial water bodies were selected and examined for physicochemical and microbiological characterization. Additional parameters were assessed, including the presence, identification and count of the cyanobacterial occurring species, the measurement of microcystins (MCs) levels and the search for the genes responsible for the toxins production. Principal Component Analysis (PCA) was used to relate environmental condition to cyanobacterial growth. Water quality was poor for very few parameters, suggesting common anthropic pressures, and PCA highlighted clusters of reservoirs vulnerable to hydrological conditions, related to semi-arid Mediterranean climate and to the use of the reservoir. In summer, bloom was detected in only one reservoir and different species was highlighted among the Cyanobacteria community. The only toxins detected were microcystins, although always well below the WHO reference value for drinking waters (1.0 μg/L). However, molecular analysis could not show the presence of potential cyanotoxins producers since a few numbers of cells among total could be sufficient to produce these low MCs levels but not enough high to be proved by the traditional molecular method applied. A simple environmental risk-based model, which accounts for the high variability of both cyanobacteria growth and cyanotoxins producing, is proposed as a cost-effective tool to evaluate the need for monitoring activities in reservoirs aimed to guarantee supplying waters safety.
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Affiliation(s)
- P Zuccarello
- Environmental and Food Hygiene Laboratories, Department "G.F. Ingrassia", University of Catania, Italy
| | - M Manganelli
- Environment and Health Department, Istituto Superiore di Sanità, Viale Regina Elena, 299, 00161, Rome, Italy
| | - G Oliveri Conti
- Environmental and Food Hygiene Laboratories, Department "G.F. Ingrassia", University of Catania, Italy.
| | - C Copat
- Environmental and Food Hygiene Laboratories, Department "G.F. Ingrassia", University of Catania, Italy
| | - A Grasso
- Environmental and Food Hygiene Laboratories, Department "G.F. Ingrassia", University of Catania, Italy
| | - A Cristaldi
- Environmental and Food Hygiene Laboratories, Department "G.F. Ingrassia", University of Catania, Italy
| | - G De Angelis
- Environment and Health Department, Istituto Superiore di Sanità, Viale Regina Elena, 299, 00161, Rome, Italy
| | - E Testai
- Environment and Health Department, Istituto Superiore di Sanità, Viale Regina Elena, 299, 00161, Rome, Italy
| | - M Stefanelli
- Research Certification and Control Division, INAIL, Via Fontana Candida 1, Monteporzio Catone, Rome, Italy
| | - S Vichi
- Environment and Health Department, Istituto Superiore di Sanità, Viale Regina Elena, 299, 00161, Rome, Italy
| | - M Fiore
- Environmental and Food Hygiene Laboratories, Department "G.F. Ingrassia", University of Catania, Italy
| | - M Ferrante
- Environmental and Food Hygiene Laboratories, Department "G.F. Ingrassia", University of Catania, Italy
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18
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Di Maria F, Beccaloni E, Bonadonna L, Cini C, Confalonieri E, La Rosa G, Milana MR, Testai E, Scaini F. Minimization of spreading of SARS-CoV-2 via household waste produced by subjects affected by COVID-19 or in quarantine. Sci Total Environ 2020; 743:140803. [PMID: 32653701 PMCID: PMC7340013 DOI: 10.1016/j.scitotenv.2020.140803] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [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: 05/15/2020] [Revised: 07/05/2020] [Accepted: 07/05/2020] [Indexed: 04/13/2023]
Abstract
Currently available evidence supports that the predominant route of human-to-human transmission of the SARS-CoV-2 is through respiratory droplets. Indirect hands contact with surfaces contaminated by infectious droplets subsequently touching the mouth, nose or eyes seems to be another route of an indirect contact transmission. Persistence of the virus on different surfaces and other materials has been reported in recent studies: SARS-CoV-2 was more stable on plastic and stainless steel than on copper and cardboard. Viable virus was detected up to 72 h after application to different surfaces, although infectivity decay was also observed. This evidence suggests the likelihood that waste generated from patients affected by COVID-19 or subjects in quarantine treated in private houses or in areas different from hospitals and medical centres could be contaminated by SARS-CoV-2. Consequently, waste streams may represent a route for viral spreading being a potential risk also for the operators directly involved in the different phases of waste management. To address this concern, a specific multidisciplinary working group was settled by the Italian National Institute of Health (ISS) during the COVID-19 emergency, in order to establish guidelines related to solid waste collection, delivering, withdrawal, transport, treatment and disposal. Temporary stop of waste sorting, instructions for the population on how to package waste, instructions for Companies and operators for the adoption of adequate personal protection equipment (PPE), the use and sanitation of proper vehicles were among the main recommendations provided to the community by publications of freely downloadable reports and infographics in layman language. Incineration, sterilization and properly managed landfills were identified as the facilities to be preferentially adopted for the treatment of this kind of waste, considering the main inactivation strategies of SARS-CoV-2 (e.g. treatment length > 9 days and temperature > 70 °C for more than 5 min).
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Affiliation(s)
- Francesco Di Maria
- LAR Laboratory, Dipartimento di Ingegneria, University of Perugia, Perugia, Italy.
| | - Eleonora Beccaloni
- Dipartimento Ambiente e Salute, National Institute of Health (ISS), Roma, Italy
| | - Lucia Bonadonna
- Dipartimento Ambiente e Salute, National Institute of Health (ISS), Roma, Italy
| | | | | | - Giuseppina La Rosa
- Dipartimento Ambiente e Salute, National Institute of Health (ISS), Roma, Italy
| | | | - Emanuela Testai
- Dipartimento Ambiente e Salute, National Institute of Health (ISS), Roma, Italy
| | - Federica Scaini
- Dipartimento Ambiente e Salute, National Institute of Health (ISS), Roma, Italy
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19
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Buratti FM, Darney K, Vichi S, Turco L, Di Consiglio E, Lautz LS, Béchaux C, Dorne JLCM, Testai E. Human variability in glutathione-S-transferase activities, tissue distribution and major polymorphic variants: Meta-analysis and implication for chemical risk assessment. Toxicol Lett 2020; 337:78-90. [PMID: 33189831 DOI: 10.1016/j.toxlet.2020.11.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 11/03/2020] [Accepted: 11/06/2020] [Indexed: 02/06/2023]
Abstract
The input into the QIVIVE and Physiologically-Based kinetic and dynamic models of drug metabolising enzymes performance and their inter-individual differences significantly improve the modelling performance, supporting the development and integration of alternative approaches to animal testing. Bayesian meta-analyses allow generating and integrating statistical distributions with human in vitro metabolism data for quantitative in vitro-in vivo extrapolation. Such data are lacking on glutathione-S-transferases (GSTs). This paper reports for the first time results on the human variability of GST activities in healthy individuals, their tissue localisation and the frequencies of their major polymorphic variants by means of extensive literature search, data collection, data base creation and meta-analysis. A limited number of papers focussed on in vivo GST inter-individual differences in humans. Ex-vivo total GST activity without discriminating amongst isozymes is generally reported, resulting in a high inter-individual variability. The highest levels of cytosolic GSTs in humans are measured in the kidney, liver, adrenal glands and blood. The frequencies of GST polymorphisms for cytosolic isozymes in populations of different geographical ancestry were also presented. Bayesian meta-analyses to derive GST-related uncertainty factors provided uncertain estimates, due to the limited database. Considering the relevance of GST activities and their pivotal role in cellular adaptive response mechanisms to chemical stressors, further studies are needed to identify GST probe substrates for specific isozymes and quantify inter-individual differences.
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Affiliation(s)
- Franca Maria Buratti
- Department of Environment and Health, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, Italy.
| | - Keyvin Darney
- Risk Assessment Department, French Agency for Food, Environmental and Occupational Health & Safety (ANSES), 14 rue Pierre et Marie Curie, Maisons-Alfort, F-94700, France
| | - Susanna Vichi
- Department of Environment and Health, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, Italy
| | - Laura Turco
- Department of Environment and Health, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, Italy
| | - Emma Di Consiglio
- Department of Environment and Health, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, Italy
| | - Leonie S Lautz
- Risk Assessment Department, French Agency for Food, Environmental and Occupational Health & Safety (ANSES), 14 rue Pierre et Marie Curie, Maisons-Alfort, F-94700, France
| | - Camille Béchaux
- Risk Assessment Department, French Agency for Food, Environmental and Occupational Health & Safety (ANSES), 14 rue Pierre et Marie Curie, Maisons-Alfort, F-94700, France
| | | | - Emanuela Testai
- Department of Environment and Health, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, Italy
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20
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Di Consiglio E, Pistollato F, Mendoza-De Gyves E, Bal-Price A, Testai E. Integrating biokinetics and in vitro studies to evaluate developmental neurotoxicity induced by chlorpyrifos in human iPSC-derived neural stem cells undergoing differentiation towards neuronal and glial cells. Reprod Toxicol 2020; 98:174-188. [PMID: 33011216 PMCID: PMC7772889 DOI: 10.1016/j.reprotox.2020.09.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 09/17/2020] [Accepted: 09/24/2020] [Indexed: 12/19/2022]
Abstract
Human iPSC-derived NSCs undergoing differentiation possess some metabolic competence. CPF entered the cells and was biotrasformed into its two main metabolites (CPFO and TCP). After repeated exposure, very limited bioaccumulation of CPF was observed. Treatment with CPF decreased neurite outgrowth, synapse number and electrical activity. Treatment with CPF increased BDNF levels and the percentage of astrocytes.
For some complex toxicological endpoints, chemical safety assessment has conventionally relied on animal testing. Apart from the ethical issues, also scientific considerations have been raised concerning the traditional approach, highlighting the importance for considering real life exposure scenario. Implementation of flexible testing strategies, integrating multiple sources of information, including in vitro reliable test methods and in vitro biokinetics, would enhance the relevance of the obtained results. Such an approach could be pivotal in the evaluation of developmental neurotoxicity (DNT), especially when applied to human cell-based models, mimicking key neurodevelopmental processes, relevant to human brain development. Here, we integrated the kinetic behaviour with the toxicodynamic alterations of chlorpyrifos (CPF), such as in vitro endpoints specific for DNT evaluation, after repeated exposure during differentiation of human neural stem cells into a mixed culture of neurons and astrocytes. The upregulation of some cytochrome P450 and glutathione S-transferase genes during neuronal differentiation and the formation of the two major CPF metabolites (due to bioactivation and detoxification) supported the metabolic competence of the used in vitro model. The alterations in the number of synapses, neurite outgrowth, brain derived neurotrophic factor, the proportion of neurons and astrocytes, as well as spontaneous electrical activity correlated well with the CPF ability to enter the cells and be bioactivated to CPF-oxon. Overall, our results confirm that combining in vitro biokinetics and assays to evaluate effects on neurodevelopmental endpoints in human cells should be regarded as a key strategy for a quantitative characterization of DNT effects.
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Affiliation(s)
- Emma Di Consiglio
- Istituto Superiore di Sanità, Environment and Health Department, Mechanisms, Biomarkers and Models Unit, Rome, Italy
| | | | | | - Anna Bal-Price
- European Commission, Joint Research Centre (JRC), Ispra, Italy
| | - Emanuela Testai
- Istituto Superiore di Sanità, Environment and Health Department, Mechanisms, Biomarkers and Models Unit, Rome, Italy
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21
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Darney K, Kasteel EEJ, Buratti FM, Turco L, Vichi S, Béchaux C, Roudot AC, Kramer NI, Testai E, Dorne JLCM, Di Consiglio E, Lautz LS. Bayesian meta-analysis of inter-phenotypic differences in human serum paraoxonase-1 activity for chemical risk assessment. Environ Int 2020; 138:105609. [PMID: 32114288 DOI: 10.1016/j.envint.2020.105609] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [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: 11/27/2019] [Revised: 02/19/2020] [Accepted: 02/22/2020] [Indexed: 06/10/2023]
Abstract
Human variability in paraoxonase-1 (PON1) activities is driven by genetic polymorphisms that affect the internal dose of active oxons of organophosphorus (OP) insecticides. Here, an extensive literature search has been performed to collect human genotypic frequencies (i.e. L55M, Q192R, and C-108T) in subgroups from a range of geographical ancestry and PON1 activities in three probe substrates (paraoxon, diazoxon and phenyl acetate). Bayesian meta-analyses were performed to estimate variability distributions for PON1 activities and PON1-related uncertainty factors (UFs), while integrating quantifiable sources of inter-study, inter-phenotypic and inter-individual differences. Inter-phenotypic differences were quantified using the population with high PON1 activity as the reference group. Results from the meta-analyses provided PON1 variability distributions and these can be implemented in generic physiologically based kinetic models to develop quantitative in vitro in vivo extrapolation models. PON1-related UFs in the Caucasian population were above the default toxicokinetic UF of 3.16 for two specific genotypes namely -108CC using diazoxon as probe substrate and, -108CT, -108TT, 55MM and 192QQ using paraoxon as probe substrate. However, integration of PON1 genotypic frequencies and activity distributions showed that all UFs were within the default toxicokinetic UF. Quantitative inter-individual differences in PON1 activity are important for chemical risk assessment particularly with regards to the potential sensitivity to organophosphates' toxicity.
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Affiliation(s)
- K Darney
- Risk Assessment Department, French Agency for Food, Environmental and Occupational Health & Safety (ANSES), 14 rue Pierre et Marie Curie, Maisons-Alfort F-94700, France
| | - E E J Kasteel
- Institute for Risk Assessment Sciences, Utrecht University, 3508 TD Utrecht, the Netherlands
| | - F M Buratti
- Department of Environment and Health, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy
| | - L Turco
- Department of Environment and Health, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy
| | - S Vichi
- Department of Environment and Health, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy
| | - C Béchaux
- Risk Assessment Department, French Agency for Food, Environmental and Occupational Health & Safety (ANSES), 14 rue Pierre et Marie Curie, Maisons-Alfort F-94700, France
| | - A C Roudot
- Laboratoire des Interactions Epithéliums Neurones, Université Bretagne Loire (UBL), UFR Sciences et Techniques, 6 Av. Victor Le Gorgeu, CS93837, Cedex 3, Brest 29238, France
| | - N I Kramer
- Institute for Risk Assessment Sciences, Utrecht University, 3508 TD Utrecht, the Netherlands
| | - E Testai
- Department of Environment and Health, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy
| | - J L C M Dorne
- European Food Safety Authority, 1a, Via Carlo Magno 1A, 43126 Parma, Italy
| | - E Di Consiglio
- Department of Environment and Health, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy
| | - L S Lautz
- Risk Assessment Department, French Agency for Food, Environmental and Occupational Health & Safety (ANSES), 14 rue Pierre et Marie Curie, Maisons-Alfort F-94700, France.
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22
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Talhout R, Duarte-Davidson R, Hoet P, Nair U, Rydzynski K, Vermeire T, Zacharov S, Testai E. Advice to the European Commission as Regards Type and Criteria for Comprehensive Studies to Be Requested From Manufacturers: The Opinion of the Scientific Committee on Health, Environmental, and Emerging Risks (SCHEER). Nicotine Tob Res 2020; 22:613-618. [PMID: 31329942 DOI: 10.1093/ntr/ntz006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Accepted: 01/17/2019] [Indexed: 11/12/2022]
Abstract
The European Commission has established a priority list of 15 additives contained in cigarettes and roll-your-own tobacco subject to enhanced reporting obligations. The European Union (EU) Tobacco Products Directive (TPD) prescribes that Member States shall require manufacturers and importers of tobacco products to carry out comprehensive studies on these additives to assess their contribution to any of the properties listed in Article 6 of the TPD: toxicity or addictiveness, characterizing flavor, inhalation facilitation, nicotine uptake, and carcinogenic, mutagenic, or toxic for reproduction. The Scientific Committee on Health, Environmental, and Emerging Risks (SCHEER) has provided guidance on the type and criteria for comprehensive studies, and on the most suitable methodologies to test these 15 tobacco additives as well as additives on future updated lists. The SCHEER proposes a stepwise strategy as the most pragmatic and efficient way to assess the effects of tobacco additives. In addition to proposing specific steps and tests to be considered by industry, some general criteria were also identified such as no comparative testing (testing cigarettes with and without the additive) and no animal studies. As tobacco additives have no benefits for health, but rather may promote use of and addiction to an extremely toxic product, a risk-benefit analysis is not the appropriate paradigm for assessing the additive. When comprehensive studies confirm that additives have any of the properties listed in Article 6 of the TPD, regulatory actions should be considered. If uncertainties cannot be solved by comprehensive studies, the SCHEER recommends that the assessors consider the worst-case evaluation. IMPLICATIONS In this article, the SCHEER proposes a stepwise strategy to assess (1) the toxic and addictive effects, (2) the characterizing flavor, and (3) facilitating inhalation properties of tobacco additives. The proposed steps and tests provide guidance to (1) Member State on which comprehensive studies should be requested and (2) tobacco industry on which strategy of testing should be applied to address the request and to prepare reports to be sent to the relevant authorities for the evaluation of tobacco additives "safety" to comply with the Tobacco Products Directive 2014/40/EU.
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Affiliation(s)
- Reinskje Talhout
- SCHEER Secretariat, European Commission, DG Health and Food Safety, Directorate C: Public Health, Country Knowledge, Crisis Management, Unit C2: Country Knowledge and Scientific Committees, Luxembourg
| | - Raquel Duarte-Davidson
- SCHEER Secretariat, European Commission, DG Health and Food Safety, Directorate C: Public Health, Country Knowledge, Crisis Management, Unit C2: Country Knowledge and Scientific Committees, Luxembourg
| | - Peter Hoet
- SCHEER Secretariat, European Commission, DG Health and Food Safety, Directorate C: Public Health, Country Knowledge, Crisis Management, Unit C2: Country Knowledge and Scientific Committees, Luxembourg
| | - Urmila Nair
- SCHEER Secretariat, European Commission, DG Health and Food Safety, Directorate C: Public Health, Country Knowledge, Crisis Management, Unit C2: Country Knowledge and Scientific Committees, Luxembourg
| | - Konrad Rydzynski
- SCHEER Secretariat, European Commission, DG Health and Food Safety, Directorate C: Public Health, Country Knowledge, Crisis Management, Unit C2: Country Knowledge and Scientific Committees, Luxembourg
| | - Theo Vermeire
- SCHEER Secretariat, European Commission, DG Health and Food Safety, Directorate C: Public Health, Country Knowledge, Crisis Management, Unit C2: Country Knowledge and Scientific Committees, Luxembourg
| | - Sergej Zacharov
- SCHEER Secretariat, European Commission, DG Health and Food Safety, Directorate C: Public Health, Country Knowledge, Crisis Management, Unit C2: Country Knowledge and Scientific Committees, Luxembourg
| | - Emanuela Testai
- SCHEER Secretariat, European Commission, DG Health and Food Safety, Directorate C: Public Health, Country Knowledge, Crisis Management, Unit C2: Country Knowledge and Scientific Committees, Luxembourg
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23
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Ingelido AM, Abballe A, Gemma S, Dellatte E, Iacovella N, De Angelis G, Marra V, Russo F, Vazzoler M, Testai E, De Felip E. Serum concentrations of perfluorinated alkyl substances in farmers living in areas affected by water contamination in the Veneto Region (Northern Italy). Environ Int 2020; 136:105435. [PMID: 31935559 DOI: 10.1016/j.envint.2019.105435] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Revised: 12/03/2019] [Accepted: 12/19/2019] [Indexed: 06/10/2023]
Abstract
Human exposure to per- and polyfluorinated alkyl substances (PFASs) is a major public health concern because in the last decades several cases of overexposure of people to PFASs, in particular through contaminated water, occurred worldwide. In 2013-2017 a PFAS drinking water contamination was discovered and investigated in northern Italy (Veneto region) and high PFAS serum levels were detected in exposed people. 629 subjects were enrolled: 257 residing in municipalities in the areas under impact, 250 residing in municipalities in areas at presumed background exposure and 122 farmers living in contaminated rural areas producing and consuming own livestock and vegetables and frequently using well water. The highest PFAS serum concentrations (median PFOA concentrations 40 ng/g) were found in the subgroup of farmers. The main factors influencing PFAS serum levels of farmers were residence area and the related extent of drinking water contamination, gender, years of residence in the municipalities, well water consumption and consumption of own produced food. PFOA serum concentrations in farmers residing in the areas of the Veneto region impacted by PFAS contamination are among the highest found worldwide.
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Affiliation(s)
- Anna Maria Ingelido
- Istituto Superiore di Sanità, Dipartimento Ambiente e Salute, Viale Regina Elena 299, 00161 Roma, Italy.
| | - Annalisa Abballe
- Istituto Superiore di Sanità, Dipartimento Ambiente e Salute, Viale Regina Elena 299, 00161 Roma, Italy
| | - Simonetta Gemma
- Istituto Superiore di Sanità, Dipartimento Ambiente e Salute, Viale Regina Elena 299, 00161 Roma, Italy
| | - Elena Dellatte
- Istituto Superiore di Sanità, Dipartimento Ambiente e Salute, Viale Regina Elena 299, 00161 Roma, Italy
| | - Nicola Iacovella
- Istituto Superiore di Sanità, Dipartimento Ambiente e Salute, Viale Regina Elena 299, 00161 Roma, Italy
| | - Giovanna De Angelis
- Istituto Superiore di Sanità, Dipartimento Ambiente e Salute, Viale Regina Elena 299, 00161 Roma, Italy
| | - Valentina Marra
- Istituto Superiore di Sanità, Dipartimento Ambiente e Salute, Viale Regina Elena 299, 00161 Roma, Italy
| | - Francesca Russo
- Direzione Prevenzione, Sicurezza Alimentare e Veterinaria della Regione Veneto, Rio Novo - Dorsoduro 3493, 30123 Venezia, Italy
| | - Marina Vazzoler
- Agenzia Regionale per la Prevenzione e Protezione Ambientale del Veneto, Via Ospedale Civile 24, 35121 Padova, Italy
| | - Emanuela Testai
- Istituto Superiore di Sanità, Dipartimento Ambiente e Salute, Viale Regina Elena 299, 00161 Roma, Italy
| | - Elena De Felip
- Istituto Superiore di Sanità, Dipartimento Ambiente e Salute, Viale Regina Elena 299, 00161 Roma, Italy
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24
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Santori N, Buratti FM, Scardala S, Dorne JLCM, Testai E. In vitro detoxication of microcystins in human samples: variability among variants with different hydrophilicity and structure. Toxicol Lett 2020; 322:131-139. [PMID: 31953209 DOI: 10.1016/j.toxlet.2020.01.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 01/07/2020] [Accepted: 01/11/2020] [Indexed: 10/25/2022]
Abstract
Cyanotoxins, among which >200 variants of Microcystins (MC), constitute an emerging issue in food safety. Microcystins (MC) toxicity is congener-specific; however, the in vitro inhibition of PP1/PP2A (the key molecular event of MC toxicity) by single MC variants is comparable and MC toxicokinetics seems to be the critical point. Here, the variability in GSH conjugation catalysed by human recombinant enzymes and human hepatic cytosol has been compared between hydrophilic (MC-LR and MC-RR) and hydrophobic (MC-LW, MC-YR and MC-LF) variants, according to measured logPow. In vitro detoxication reaction (spontaneous plus enzymatic) is favored by the variant hydrophilicity, with MC-LF very poorly detoxified. With MC-YR and -LW the spontaneous reaction always gave the major contribution, whereas with MC-LR and -RR the enzymatic reaction became by far predominant when GSH was depleted. Consequently, the well-known GST polymorphisms seems not to be the major driver for potential human variability in susceptibility towards the MC-toxicity, except for MC-RR and -LR when GSH is depleted. Looking at these results and literature data, MC-RR (the least cytotoxic and acutely toxic in rodents) is the more hydrophilic, has the lowest OATP-mediated hepatic uptake and the highest detoxication efficiency. The opposite is true for the most lipophilic MC-LF: once entered in the cells with the highest uptake, it is very poorly detoxified, and resulted as the most toxic in various cell types. MC-dependent TK should be considered in order to estimate the variability in toxicity and to support the use of quantitative in vitro-in vivo extrapolation models of single toxins and their mixtures co-occurring in the environment.
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Affiliation(s)
- Nicoletta Santori
- Istituto Superiore Di Sanità, Environment & Health Dept., Viale Regina Elena, 299, Rome Italy
| | - Franca Maria Buratti
- Istituto Superiore Di Sanità, Environment & Health Dept., Viale Regina Elena, 299, Rome Italy.
| | - Simona Scardala
- Istituto Superiore Di Sanità, Environment & Health Dept., Viale Regina Elena, 299, Rome Italy
| | | | - Emanuela Testai
- Istituto Superiore Di Sanità, Environment & Health Dept., Viale Regina Elena, 299, Rome Italy
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Darney K, Testai E, Buratti FM, Di Consiglio E, Kasteel EE, Kramer N, Turco L, Vichi S, Roudot AC, Dorne JL, Béchaux C. Inter-ethnic differences in CYP3A4 metabolism: A Bayesian meta-analysis for the refinement of uncertainty factors in chemical risk assessment. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.comtox.2019.100092] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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26
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Ricciardi W, Marcheggiani S, Puccinelli C, Carere M, Sofia T, Giuliano F, Dogliotti E, Mancini L, Agrimi U, Alleva E, Busani L, De Castro P, Gaudi S, Michelozzi P, Rezza G, Testai E, Vella S. Health and Climate Change: science calls for global action. Ann Ist Super Sanita 2019; 55:323-329. [PMID: 31850858 DOI: 10.4415/ann_19_04_04] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Climate changes affect social and environmental health determinants such as clean air, ecosystems health, safe drinking water and safe sufficient food. Globally, people at greatest risk of adverse health effects associated with climate change include children, the elderly and other vulnerable groups. Temperature-related death and illness, extreme events, polluted or stressed ecosystems represent relevant issues raising concern for both health and economic consequences. The aim of the Symposium "Health and Climate Change" (Istituto Superiore di Sanità, Rome 3-5 December 2018) was to promote an inter-sectoral and multidisciplinary approach to estimate and prevent climate change-related events as well as to call the authorities to put in place measures to reduce adverse health effects. At the end of the Symposium the Rome International Charter on Health and Climate Change was presented. It includes a series of actions and recommendations, discussed and shared by all the participants, intended to inform policy makers and all the stakeholders involved in the management of climate changes.
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Affiliation(s)
- Walter Ricciardi
- Formerly, President of the Istituto Superiore di Sanità, Rome, Italy - Equal contribution
| | - Stefania Marcheggiani
- Dipartimento Ambiente e Salute, Istituto Superiore di Sanità, Rome, Italy - Equal contribution
| | - Camilla Puccinelli
- Dipartimento Ambiente e Salute, Istituto Superiore di Sanità, Rome, Italy - Equal contribution
| | - Mario Carere
- Dipartimento Ambiente e Salute, Istituto Superiore di Sanità, Rome, Italy - Equal contribution
| | - Tonino Sofia
- Ufficio della Presidenza, Istituto Superiore di Sanità, Rome, Italy - Equal contribution
| | - Fabiola Giuliano
- Formerly, Ufficio della Presidenza, Istituto Superiore di Sanità, Rome, Italy - Equal contribution
| | - Eugenia Dogliotti
- Dipartimento Ambiente e Salute, Istituto Superiore di Sanità, Rome, Italy - Equal contribution
| | - Laura Mancini
- Dipartimento Ambiente e Salute, Istituto Superiore di Sanità, Rome, Italy - Equal contribution
| | - Umberto Agrimi
- Dipartimento di Sicurezza Alimentare, Nutrizione e Salute Pubblica Veterinaria, Istituto Superiore di Sanità, Rome, Italy
| | - Enrico Alleva
- Centro di Riferimento per le Scienze Comportamentali e Salute Mentale, Istituto Superiore di Sanità, Rome, Italy
| | - Luca Busani
- Dipartimento di Malattie Infettive, Istituto Superiore di Sanità, Rome, Italy
| | - Paola De Castro
- Sevizio Comunicazione Scientifica, Istituto Superiore di Sanità, Rome, Italy
| | - Simona Gaudi
- Dipartimento Ambiente e Salute, Istituto Superiore di Sanità, Rome, Italy
| | - Paola Michelozzi
- Dipartimento di Epidemiologia del Servizio Sanitario Regionale, Regione Lazio, Rome, Italy
| | - Giovanni Rezza
- Dipartimento di Malattie Infettive, Istituto Superiore di Sanità, Rome, Italy
| | - Emanuela Testai
- Dipartimento Ambiente e Salute, Istituto Superiore di Sanità, Rome, Italy
| | - Stefano Vella
- Centro Nazionale Salute Globale, Istituto Superiore di Sanità, Rome, Italy
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Timoumi R, Buratti FM, Abid-Essefi S, Dorne JLCM, Testai E. Metabolism of triflumuron in the human liver: Contribution of cytochrome P450 isoforms and esterases. Toxicol Lett 2019; 312:173-180. [PMID: 31082524 DOI: 10.1016/j.toxlet.2019.05.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 05/03/2019] [Accepted: 05/09/2019] [Indexed: 12/11/2022]
Abstract
Triflumuron (TFM) is a benzoylurea insecticide commonly used in Tunisian agriculture and around the world to control crop pests and flies as a promising alternative to conventional insecticides for its arthropod specificity and low toxicity. From the evidence available in animal models, it can be expected that the metabolism of TFM is catalyzed by cytochrome P450 (CYP) and esterases. However, no data are available on human metabolism of TFM with regards to phase I metabolism and CYP isoform specificity. Hence, this manuscript describes experimental investigations to underpin in vitro phase I TFM metabolism in human samples for the first time. TFM biotransformation by recombinant human CYPs was characterized, then human liver microsomes (HLM) and chemical specific inhibitors have been used to identify the relative contribution of CYPs and esterases. Our results showed that all CYP isoforms were able to metabolize TFM with different affinity and efficiency. The relative contribution based both on the kinetic parameters and the CYP hepatic content was 3A4 > >2C9 > 2C8 > 2A6 > 1A2 > 2B6 > 2D6 > 2C19 > 2C18 > 1A1 at low TFM concentration, whilst at high TFM concentration it was 1A2 > >2C9 = 3A4 = 2A6 > 2C19 > 2B6 = 2C8 > 2D6 > 1A1 > 2C18. Experiments with HLMs confirmed the involvement of the most relevant CYPs in the presence of specific chemical inhibitors with a catalytic efficiency (Cliapp) lower by an order of magnitude compared with recombinant enzymes. Esterases were also relevant to the overall TFM kinetics and metabolism, with catalytic efficiency higher than that of CYPs. It is foreseen that such isoform-specific information in humans will further support in silico models for the refinement of the human risk assessment of single pesticides or mixtures.
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Affiliation(s)
- Rim Timoumi
- Laboratory for Research on Biologically Compatible Compounds, Faculty of Dental Medicine, University of Monastir, Rue Avicenne, 5019, Monastir, Tunisia; Higher Institute of Biotechnology of Monastir, Avenue Taher Haddad 5000, Monastir, Tunisia
| | - Franca M Buratti
- Istituto Superiore di Sanità, Environment & Health Dept., Viale Regina Elena, 299, Roma, Italy.
| | - Salwa Abid-Essefi
- Laboratory for Research on Biologically Compatible Compounds, Faculty of Dental Medicine, University of Monastir, Rue Avicenne, 5019, Monastir, Tunisia
| | - Jean-Lou C M Dorne
- EFSA (European Food Safety Authority), Via Carlo Magno, 1A, Parma, Italy
| | - Emanuela Testai
- Istituto Superiore di Sanità, Environment & Health Dept., Viale Regina Elena, 299, Roma, Italy
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Coecke S, Ahr H, Blaauboer BJ, Bremer S, Casati S, Castell J, Combes R, Corvi R, Crespi CL, Cunningham ML, Elaut G, Eletti B, Freidig A, Gennari A, Ghersi-Egea JF, Guillouzo A, Hartung T, Hoet P, Ingelman-Sundberg M, Munn S, Janssens W, Ladstetter B, Leahy D, Long A, Meneguz A, Monshouwer M, Morath S, Nagelkerke F, Pelkonen O, Ponti J, Prieto P, Richert L, Sabbioni E, Schaack B, Steiling W, Testai E, Vericat JA, Worth A. Metabolism: A Bottleneck in In Vitro Toxicological Test Development. Altern Lab Anim 2019; 34:49-84. [PMID: 16522150 DOI: 10.1177/026119290603400113] [Citation(s) in RCA: 104] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Sandra Coecke
- ECVAM, Institute for Health and Consumer Protection, European Commission Joint Research Centre, Ispra, Italy
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More SJ, Bampidis V, Benford D, Bennekou SH, Bragard C, Halldorsson TI, Hernández-Jerez AF, Koutsoumanis K, Naegeli H, Schlatter JR, Silano V, Nielsen SS, Schrenk D, Turck D, Younes M, Benfenati E, Castle L, Cedergreen N, Hardy A, Laskowski R, Leblanc JC, Kortenkamp A, Ragas A, Posthuma L, Svendsen C, Solecki R, Testai E, Dujardin B, Kass GE, Manini P, Jeddi MZ, Dorne JLC, Hogstrand C. Guidance on harmonised methodologies for human health, animal health and ecological risk assessment of combined exposure to multiple chemicals. EFSA J 2019; 17:e05634. [PMID: 32626259 PMCID: PMC7009070 DOI: 10.2903/j.efsa.2019.5634] [Citation(s) in RCA: 152] [Impact Index Per Article: 30.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
This Guidance document describes harmonised risk assessment methodologies for combined exposure to multiple chemicals for all relevant areas within EFSA's remit, i.e. human health, animal health and ecological areas. First, a short review of the key terms, scientific basis for combined exposure risk assessment and approaches to assessing (eco)toxicology is given, including existing frameworks for these risk assessments. This background was evaluated, resulting in a harmonised framework for risk assessment of combined exposure to multiple chemicals. The framework is based on the risk assessment steps (problem formulation, exposure assessment, hazard identification and characterisation, and risk characterisation including uncertainty analysis), with tiered and stepwise approaches for both whole mixture approaches and component‐based approaches. Specific considerations are given to component‐based approaches including the grouping of chemicals into common assessment groups, the use of dose addition as a default assumption, approaches to integrate evidence of interactions and the refinement of assessment groups. Case studies are annexed in this guidance document to explore the feasibility and spectrum of applications of the proposed methods and approaches for human and animal health and ecological risk assessment. The Scientific Committee considers that this Guidance is fit for purpose for risk assessments of combined exposure to multiple chemicals and should be applied in all relevant areas of EFSA's work. Future work and research are recommended. This publication is linked to the following EFSA Supporting Publications article: http://onlinelibrary.wiley.com/doi/10.2903/sp.efsa.2019.EN-1589/full, http://onlinelibrary.wiley.com/doi/10.2903/sp.efsa.2019.EN-1602/full
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Beilmann M, Boonen H, Czich A, Dear G, Hewitt P, Mow T, Newham P, Oinonen T, Pognan F, Roth A, Valentin JP, Van Goethem F, Weaver RJ, Birk B, Boyer S, Caloni F, Chen AE, Corvi R, Cronin MTD, Daneshian M, Ewart LC, Fitzgerald RE, Hamilton GA, Hartung T, Kangas JD, Kramer NI, Leist M, Marx U, Polak S, Rovida C, Testai E, Van der Water B, Vulto P, Steger-Hartmann T. Optimizing drug discovery by Investigative Toxicology: Current and future trends. ALTEX 2018; 36:289-313. [PMID: 30570669 DOI: 10.14573/altex.1808181] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Accepted: 12/20/2018] [Indexed: 11/23/2022]
Abstract
Investigative Toxicology describes the de-risking and mechanistic elucidation of toxicities, supporting early safety decisions in the pharmaceutical industry. Recently, Investigative Toxicology has contributed to a shift in pharmaceutical toxicology, from a descriptive to an evidence-based, mechanistic discipline. This was triggered by high costs and low throughput of Good Laboratory Practice in vivo studies, and increasing demands for adhering to the 3R (Replacement, Reduction and Refinement) principles of animal welfare. Outside the boundaries of regulatory toxicology, Investigative Toxicology has the flexibility to embrace new technologies, enhancing translational steps from in silico, in vitro to in vivo mechanistic understanding to eventually predict human response. One major goal of Investigative Toxicology is improving preclinical decisions, which coincides with the concept of animal-free safety testing. Currently, compounds under preclinical development are being discarded due to the use of inappropriate animal models. Progress in Investigative Toxicology could lead to humanized in vitro test systems and the development of medicines less reliant on animal tests. To advance this field a group of 14 European-based leaders from the pharmaceutical industry founded the Investigative Toxicology Leaders Forum (ITLF), an open, non-exclusive and pre-competitive group that shares knowledge and experience. The ITLF collaborated with the Centre for Alternatives to Animal Testing Europe (CAAT-Europe) to organize an "Investigative Toxicology Think-Tank", which aimed to enhance the interaction with experts from academia and regulatory bodies in the field. Summarizing the topics and discussion of the workshop, this article highlights Investigative Toxicology's position by identifying key challenges and perspectives.
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Affiliation(s)
- Mario Beilmann
- Nonclinical Drug Safety, Boehringer Ingelheim Pharma GmbH & Co. KG, Biberach, Germany
| | | | | | - Gordon Dear
- Platform Technology & Science, David Jack Centre for R&D, GSK, Hertfordshire, UK
| | | | - Tomas Mow
- Global Discovery and Development Sciences, Novo Nordisk A/S, Maaloev, Denmark
| | - Peter Newham
- Drug Safety and Metabolism, Astra Zeneca, Cambridge, UK
| | - Teija Oinonen
- Investigative Toxicology and ADME, Orion Pharma, Espoo, Finland
| | | | - Adrian Roth
- Pharma Research and Early Development, Hoffmann-La Roche Ltd, Basel, Switzerland
| | | | - Freddy Van Goethem
- Mechanistic & Investigative Toxicology, Discovery Sciences, Janssen Research & Development, Beerse, Belgium
| | | | - Barbara Birk
- Experimental Toxicology and Ecology, BASF, Ludwigshafen, Germany
| | - Scott Boyer
- Computational Toxicology, Swedish Toxicological Sciences Research Center, Södertäljje, Sweden
| | - Francesca Caloni
- Department of Veterinary Medicine (DIMEVET), Università degli Studi di Milano, Milan, Italy
| | | | - Raffaella Corvi
- EURL-ECVAM, Joint Research Center, European Commission, Ispra (VA), Italy
| | - Mark T D Cronin
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, England
| | - Mardas Daneshian
- Center for Alternatives to Animal Testing (CAAT)-Europe, University of Konstanz, Konstanz, Germany
| | - Lorna C Ewart
- Drug Safety and Metabolism, Astra Zeneca, Cambridge, UK
| | - Rex E Fitzgerald
- Swiss Centre for Applied Human Toxicology, SCAHT / University of Basel, Basel, Switzerland
| | | | - Thomas Hartung
- Johns Hopkins University, CAAT, Baltimore, MD, USA.,Center for Alternatives to Animal Testing (CAAT)-Europe, University of Konstanz, Konstanz, Germany
| | - Joshua D Kangas
- Computational Biology Department, Carnegie Mellon University, Pittsburgh, PA, USA
| | - Nynke I Kramer
- Institute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands
| | - Marcel Leist
- Center for Alternatives to Animal Testing (CAAT)-Europe, University of Konstanz, Konstanz, Germany
| | | | - Sebastian Polak
- Certara UK (Simcyp), Sheffield, United Kingdom.,Jagiellonian University Medical College, Kraków, Poland
| | - Costanza Rovida
- Center for Alternatives to Animal Testing (CAAT)-Europe, University of Konstanz, Konstanz, Germany
| | | | - Bob Van der Water
- Division of Drug Discovery and Safety, Leiden Academic Centre for Drug Research (LACDR), Leiden University, RA Leiden, The Netherlands
| | | | - Thomas Steger-Hartmann
- Research & Development, Pharmaceuticals, Investigational Toxicology, Bayer AG, Berlin, Germany
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Gouliarmou V, Lostia AM, Coecke S, Bernasconi C, Bessems J, Dorne JL, Ferguson S, Testai E, Remy UG, Brian Houston J, Monshouwer M, Nong A, Pelkonen O, Morath S, Wetmore BA, Worth A, Zanelli U, Zorzoli MC, Whelan M. Establishing a systematic framework to characterise in vitro methods for human hepatic metabolic clearance. Toxicol In Vitro 2018; 53:233-244. [DOI: 10.1016/j.tiv.2018.08.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Revised: 07/17/2018] [Accepted: 08/08/2018] [Indexed: 12/26/2022]
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Darney K, Testai E, Kramer N, Dorne JL, Bechaux C. Hierarchical Bayesian meta-analysis of human variability in CYP3A4 metabolism and CYP3A4-related uncertainty factors for human risk assessment. Toxicol Lett 2018. [DOI: 10.1016/j.toxlet.2018.06.1022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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33
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Dorne JL, Amzal B, Quignot N, Wiecek W, Grech A, Brochot C, Beaudouin R, Bois F, Ragas A, Lautz L, Oldenkamp R, Bechaux C, Darney K, Kramer N, Kasteel E, Testai E, Turco L, Vichi S, Buratti F, Di Consiglio E, Baas J, Augustine S, Marques G, Kass G, Reilly L, Richardson J, Gilsenan M, Dujardin B, Verhagen H, De Seze G, Spyropoulos D, Nougadere A, Cortinas-Abrahantes J, Livaniou A, Manini P, Verloo D, Bassan A, Ceriani L, Pavan M, Tebby C, Benfenati E, Paini A, Liem D, Robinson T. Reconnecting exposure, toxicokinetics and toxicity in food safety: OpenFoodTox and TKplate for human health, animal health and ecological risk assessment. Toxicol Lett 2018. [DOI: 10.1016/j.toxlet.2018.06.1128] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Dorne JL, Amzal B, Quignot N, Wiecek W, Bechaux C, Darney K, Grech A, Brochot C, Beaudouin R, Bois F, Ragas A, Lautz L, Oldenkamp R, Kramer N, Kasteel E, Testai E, Vichi S, Di Consiglio E, Turco L, Buratti F, Tebby C, Cortinas-Abrahantes J, Paini A, Madden J, Robinson T. Developing TK databases and tools to support food safety assessment. Toxicol Lett 2018. [DOI: 10.1016/j.toxlet.2018.06.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Ingelido AM, Abballe A, Gemma S, Dellatte E, Iacovella N, De Angelis G, Zampaglioni F, Marra V, Miniero R, Valentini S, Russo F, Vazzoler M, Testai E, De Felip E. Biomonitoring of perfluorinated compounds in adults exposed to contaminated drinking water in the Veneto Region, Italy. Environ Int 2018; 110:149-159. [PMID: 29108835 DOI: 10.1016/j.envint.2017.10.026] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Revised: 10/30/2017] [Accepted: 10/30/2017] [Indexed: 05/27/2023]
Abstract
In 2013 a contamination of drinking water by perfluoroalkylated substances (PFASs) was discovered in areas of the Veneto Region (northern Italy). In this study the exposure to PFASs of people living in the aforesaid areas was characterized: contaminant serum concentrations were measured and compared with those of a control population group living in neighboring areas at background exposure (based on available drinking water data). The enrolled population was also genotyped for the OATP1A2*3 allelic variant, possibly affecting PFAS excretion and hence the internal dose. The difference in PFAS concentrations between exposed and not exposed subjects was significantly larger for nine of the 12 substances analyzed, and confirmed that water contamination had resulted in an appreciable high exposure of the residing population over time. Within the group of exposed subjects, subgroups at different exposure levels were identified. The contamination of drinking water of the residence area was found to be the main factor influencing PFAS serum levels; in addition to water contamination, other relevant influencing factors were sex, the years of residence and raising own livestock. No relationship with the genetic trait for the studied renal transporter was evidenced. These results provide a baseline characterization of PFAS exposure of the monitored population groups for further studies, planned to be carried out in the near future.
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Affiliation(s)
| | - Annalisa Abballe
- Istituto Superiore di Sanità, Dipartimento Ambiente e Salute, Roma, Italy
| | - Simonetta Gemma
- Istituto Superiore di Sanità, Dipartimento Ambiente e Salute, Roma, Italy
| | - Elena Dellatte
- Istituto Superiore di Sanità, Dipartimento Ambiente e Salute, Roma, Italy
| | - Nicola Iacovella
- Istituto Superiore di Sanità, Dipartimento Ambiente e Salute, Roma, Italy
| | | | - Franco Zampaglioni
- Istituto Superiore di Sanità, Dipartimento Ambiente e Salute, Roma, Italy
| | - Valentina Marra
- Istituto Superiore di Sanità, Dipartimento Ambiente e Salute, Roma, Italy
| | - Roberto Miniero
- Istituto Superiore di Sanità, Dipartimento Ambiente e Salute, Roma, Italy
| | - Silvia Valentini
- Istituto Superiore di Sanità, Dipartimento Ambiente e Salute, Roma, Italy
| | - Francesca Russo
- Direzione Prevenzione, Sicurezza Alimentare, Veterinaria della Regione del Veneto, Venezia, Italy
| | - Marina Vazzoler
- Direzione Prevenzione, Sicurezza Alimentare, Veterinaria della Regione del Veneto, Venezia, Italy
| | - Emanuela Testai
- Istituto Superiore di Sanità, Dipartimento Ambiente e Salute, Roma, Italy
| | - Elena De Felip
- Istituto Superiore di Sanità, Dipartimento Ambiente e Salute, Roma, Italy
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Funari E, Manganelli M, Buratti FM, Testai E. Cyanobacteria blooms in water: Italian guidelines to assess and manage the risk associated to bathing and recreational activities. Sci Total Environ 2017; 598:867-880. [PMID: 28458204 DOI: 10.1016/j.scitotenv.2017.03.232] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [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: 02/14/2017] [Revised: 03/23/2017] [Accepted: 03/25/2017] [Indexed: 06/07/2023]
Abstract
Cyanobacteria thrive in many aquatic environments, where they can produce cyanotoxins with different toxicological profile. Anthropic pressure and climate changes are causing the expansion in terms of time and space of their blooms, increasing the concerns for human health in several exposure scenarios. Here the update of the Italian guidelines for the management of cyanobacterial blooms in bathing water is presented. A risk-based approach has been developed according to the current scientific knowledge on cyanobacteria distribution in the Italian Lakes and on chemical, toxicological and epidemiological aspects of different cyanotoxins, summarized in the first part of the paper. Oral, dermal and inhalation exposure to cyanotoxins, during recreational activities, are individually examined, to develop a framework of thresholds and actions aimed at preventing harmful effects for bathers. Guidelines, also by comparing international guidance values and/or guidelines, provide criteria to plan environmental monitoring activities, health surveillance and public communication systems. Finally the still important scientific gaps and research needs are highlighted.
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Affiliation(s)
- Enzo Funari
- Istituto Superiore di Sanità, Dept. of Environment and Health, Viale Regina Elena 299, 00161 Rome, Italy.
| | - Maura Manganelli
- Istituto Superiore di Sanità, Dept. of Environment and Health, Viale Regina Elena 299, 00161 Rome, Italy.
| | - Franca M Buratti
- Istituto Superiore di Sanità, Dept. of Environment and Health, Viale Regina Elena 299, 00161 Rome, Italy.
| | - Emanuela Testai
- Istituto Superiore di Sanità, Dept. of Environment and Health, Viale Regina Elena 299, 00161 Rome, Italy.
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Hoet P, Rydzynski K, Vermeire T, Nair U, Talhout R, Testai E, Secretariat S. Recommendations to the European Commission implementing a priority list of additives that should have more stringent reporting requirements: the opinion of the Scientific Committee on Emerging and Newly Identified Health Risks (SCENIHR). Tob Control 2017; 27:225-228. [PMID: 28341766 DOI: 10.1136/tobaccocontrol-2017-053642] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Revised: 01/27/2017] [Accepted: 01/27/2017] [Indexed: 11/03/2022]
Affiliation(s)
- Peter Hoet
- Member of the SCENIHR in the SCENIHR working group on tobacco additives, SCENIHR, Luxembourg, Europe
| | - Konrad Rydzynski
- Member of the SCENIHR in the SCENIHR working group on tobacco additives, SCENIHR, Luxembourg, Europe
| | - Theo Vermeire
- Member of the SCENIHR in the SCENIHR working group on tobacco additives, SCENIHR, Luxembourg, Europe
| | - Urmila Nair
- External expert in the SCENIHR working group on tobacco additives, SCENIHR, Luxembourg, Europe
| | - Reinskje Talhout
- External expert in the SCENIHR working group on tobacco additives, SCENIHR, Luxembourg, Europe
| | - Emanuela Testai
- Member of the SCENIHR in the SCENIHR working group on tobacco additives, SCENIHR, Luxembourg, Europe
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Buratti FM, Manganelli M, Vichi S, Stefanelli M, Scardala S, Testai E, Funari E. Cyanotoxins: producing organisms, occurrence, toxicity, mechanism of action and human health toxicological risk evaluation. Arch Toxicol 2017; 91:1049-1130. [DOI: 10.1007/s00204-016-1913-6] [Citation(s) in RCA: 258] [Impact Index Per Article: 36.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Accepted: 12/13/2016] [Indexed: 12/11/2022]
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Benfenati E, Berggren E, Fritsche E, Hartung T, Slikker W, Spielmann H, Testai E, Tice RR, Tiramani M, Villenave R. Novel chemical hazard characterisation approaches. EFSA J 2016. [DOI: 10.2903/j.efsa.2016.s0506] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Affiliation(s)
| | | | - Ellen Fritsche
- IUF – Leibniz Research Institute for Environmental Medicine Germany
| | | | | | | | | | - Raymond R. Tice
- National Institute of Environmental Health Sciences (NIEHS) USA
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Manganelli M, Stefanelli M, Vichi S, Andreani P, Nascetti G, Scialanca F, Scardala S, Testai E, Funari E. Cyanobacteria biennal dynamic in a volcanic mesotrophic lake in central Italy: Strategies to prevent dangerous human exposures to cyanotoxins. Toxicon 2016; 115:28-40. [PMID: 26948426 DOI: 10.1016/j.toxicon.2016.03.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Revised: 02/29/2016] [Accepted: 03/03/2016] [Indexed: 10/22/2022]
Abstract
Vico Lake, a volcanic meso-eutrophic lake in Central Italy, whose water is used for drinking and recreational activities, experienced the presence of the microcystins (MC) producing cyanobacterium Planktothrix rubescens. In order to assess the human health risks and to provide the local health authorities with a scientific basis for planning tailored monitoring activities, we studied P. rubescens ecology and toxicity for two years. P. rubescens generally dominated the phytoplankton community, alternating with Limnothrix redekei, potentially toxic. P. rubescens was distributed throughout the water column during winter; in summer it produced intense blooms where drinking water is collected (-20 m); here MC were detected all year round (0.5-5 μg/L), with implications for drinking water quality. In surface waters, MC posed no risk for recreational activities in summer, while in winter surface blooms and foams (containing up to 56 μg MC/L) can represent a risk for people and children practicing water sports and for animals consuming raw water. Total phosphorus, phosphate and inorganic nitrogen were not relevant to predict densities nor toxicity; however, a strong correlation between P. rubescens density and aminopeptidase ectoenzymatic activity, an enzyme involved in protein degradation, suggested a role of organic nitrogen for this species. The fraction of potentially toxic population, determined both as mcyB(+)/16SrDNA (10-100%) and as the MC/mcyB(+) cells (0.03-0.79 pg MC/cell), was much more variable than usually observed for P. rubescens. Differently from other Italian and European lakes, the correlation between cell density or the mcyB(+) cells and MC explained only ∼50 and 30% of MC variability, respectively: for Vico Lake, monitoring only cell or the mcyB(+) cell density is not sufficient to predict MC concentrations, and consequently to protect population health. Finally, during a winter bloom one site has been sampled weekly, showing that monthly sampling during such a phase could greatly underestimate the 'hazard'. Our results highlight the need to adopt a stepwise monitoring activity, considering the lake and the cyanobacteria specific features. This activity should be complemented with communication to the public and involvement of stakeholders.
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Affiliation(s)
- Maura Manganelli
- Department of the Environment and Primary Prevention - Istituto Superiore di Sanità, Viale Regina Elena 299, Rome, Italy.
| | - Mara Stefanelli
- Research, Certification and Control Division - INAIL, via Fontana candida 1, Monteporzio Catone, Rome, Italy.
| | - Susanna Vichi
- Department of the Environment and Primary Prevention - Istituto Superiore di Sanità, Viale Regina Elena 299, Rome, Italy.
| | - Paolo Andreani
- Tutela acque - Concessioni e Risorse idriche, Provincia di Viterbo, Via del Collegio, Viterbo, Italy.
| | - Giuseppe Nascetti
- Department of Ecology and Biology - University La Tuscia, via S. Giovanni decollato 1, Viterbo, Italy.
| | - Fabrizio Scialanca
- Department of Ecology and Biology - University La Tuscia, via S. Giovanni decollato 1, Viterbo, Italy.
| | - Simona Scardala
- Department of the Environment and Primary Prevention - Istituto Superiore di Sanità, Viale Regina Elena 299, Rome, Italy.
| | - Emanuela Testai
- Department of the Environment and Primary Prevention - Istituto Superiore di Sanità, Viale Regina Elena 299, Rome, Italy.
| | - Enzo Funari
- Department of the Environment and Primary Prevention - Istituto Superiore di Sanità, Viale Regina Elena 299, Rome, Italy.
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Testai E, Scardala S, Vichi S, Buratti FM, Funari E. Risk to human health associated with the environmental occurrence of cyanobacterial neurotoxic alkaloids anatoxins and saxitoxins. Crit Rev Toxicol 2016; 46:385-419. [PMID: 26923223 DOI: 10.3109/10408444.2015.1137865] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Cyanobacteria are ubiquitous photosynthetic micro-organisms forming blooms and scums in surface water; among them some species can produce cyanotoxins giving rise to some concern for human health and animal life. To date, more than 65 cyanobacterial neurotoxins have been described, of which the most studied are the groups of anatoxins and saxitoxins (STXs), comprising many different variants. In freshwaters, the hepatotoxic microcystins represent the most frequently detected cyanotoxin: on this basis, it could appear that neurotoxins are less relevant, but the low frequency of detection may partially reflect an a priori choice of target analytes, the low method sensitivity and the lack of certified standards. Cyanobacterial neurotoxins target cholinergic synapses or voltage-gated ion channels, blocking skeletal and respiratory muscles, thus leading to death by respiratory failure. This review reports and analyzes the available literature data on environmental occurrence of cyanobacterial neurotoxic alkaloids, namely anatoxins and STXs, their biosynthesis, toxicology and epidemiology, derivation of guidance values and action limits. These data are used as the basis to assess the risk posed to human health, identify critical exposure scenarios and highlight the major data gaps and research needs.
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Affiliation(s)
- Emanuela Testai
- a Environment and Primary Prevention Department , Istituto Superiore di Sanità , Rome , Italy
| | - Simona Scardala
- a Environment and Primary Prevention Department , Istituto Superiore di Sanità , Rome , Italy
| | - Susanna Vichi
- a Environment and Primary Prevention Department , Istituto Superiore di Sanità , Rome , Italy
| | - Franca M Buratti
- a Environment and Primary Prevention Department , Istituto Superiore di Sanità , Rome , Italy
| | - Enzo Funari
- a Environment and Primary Prevention Department , Istituto Superiore di Sanità , Rome , Italy
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Testai E, Hartemann P, Rastogi SC, Bernauer U, Piersma A, De Jong W, Gulliksson H, Sharpe R, Schubert D, Rodríguez-Farre E. The safety of medical devices containing DEHP plasticized PVC or other plasticizers on neonates and other groups possibly at risk (2015 update). Regul Toxicol Pharmacol 2016; 76:209-10. [PMID: 26854686 DOI: 10.1016/j.yrtph.2016.01.013] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Accepted: 01/21/2016] [Indexed: 11/15/2022]
Affiliation(s)
- Emanuela Testai
- Member of the Scientific Committee on Emerging and Newly Identified Health Risks (SCENIHR), Luxembourg
| | | | - Philippe Hartemann
- Member of the Scientific Committee on Emerging and Newly Identified Health Risks (SCENIHR), Luxembourg
| | | | - Ulrike Bernauer
- Member of the Scientific Committee on Consumer Safety (SCCS), Luxembourg
| | | | - Wim De Jong
- Member of the SCENIHR Working Group on DEHP, Luxembourg
| | | | | | - Dirk Schubert
- Member of the SCENIHR Working Group on DEHP, Luxembourg
| | - Eduardo Rodríguez-Farre
- Member of the Scientific Committee on Emerging and Newly Identified Health Risks (SCENIHR), Luxembourg
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Testai E, Hartemann P, Rodríguez-Farre E, Rastogi SC, Bustos J, Gundert-Remy U, Hensten A, Kopperud HM, Olea N, Piersma A, De Jong W. The safety of the use of bisphenol A in medical devices. Regul Toxicol Pharmacol 2016; 79:106-107. [PMID: 26851507 DOI: 10.1016/j.yrtph.2016.01.014] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Accepted: 01/21/2016] [Indexed: 11/28/2022]
Affiliation(s)
- Emanuela Testai
- Member of the Scientific Committee on Emerging and Newly Identified Health Risks (SCENIHR), Luxembourg
| | | | - Philippe Hartemann
- Member of the Scientific Committee on Emerging and Newly Identified Health Risks (SCENIHR), Luxembourg
| | - Eduardo Rodríguez-Farre
- Member of the Scientific Committee on Emerging and Newly Identified Health Risks (SCENIHR), Luxembourg
| | | | - Juana Bustos
- Member of the SCENIHR Working Group on BPA, Luxembourg
| | | | - Arne Hensten
- Member of the SCENIHR Working Group on BPA, Luxembourg
| | | | - Nicolás Olea
- Member of the SCENIHR Working Group on BPA, Luxembourg
| | | | - Wim De Jong
- Member of the SCENIHR Working Group on BPA, Luxembourg
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Testai E, Buratti FM, Funari E, Manganelli M, Vichi S, Arnich N, Biré R, Fessard V, Sialehaamoa A. Review and analysis of occurrence, exposure and toxicity of cyanobacteria toxins in food. ACTA ACUST UNITED AC 2016. [DOI: 10.2903/sp.efsa.2016.en-998] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | | | | | | | | | | | - Ronel Biré
- ANSES‐ Maisons‐Alfort and Fougères, France
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Bellwon P, Truisi G, Bois F, Wilmes A, Schmidt T, Savary C, Parmentier C, Hewitt P, Schmal O, Josse R, Richert L, Guillouzo A, Mueller S, Jennings P, Testai E, Dekant W. Kinetics and dynamics of cyclosporine A in three hepatic cell culture systems. Toxicol In Vitro 2015; 30:62-78. [DOI: 10.1016/j.tiv.2015.07.016] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2014] [Revised: 06/30/2015] [Accepted: 07/06/2015] [Indexed: 01/08/2023]
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46
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Pomponio G, Zurich MG, Schultz L, Weiss DG, Romanelli L, Gramowski-Voss A, Di Consiglio E, Testai E. Amiodarone biokinetics, the formation of its major oxidative metabolite and neurotoxicity after acute and repeated exposure of brain cell cultures. Toxicol In Vitro 2015; 30:192-202. [DOI: 10.1016/j.tiv.2015.01.012] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2014] [Revised: 01/09/2015] [Accepted: 01/26/2015] [Indexed: 12/23/2022]
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47
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Bellwon P, Culot M, Wilmes A, Schmidt T, Zurich M, Schultz L, Schmal O, Gramowski-Voss A, Weiss D, Jennings P, Bal-Price A, Testai E, Dekant W. Cyclosporine A kinetics in brain cell cultures and its potential of crossing the blood–brain barrier. Toxicol In Vitro 2015; 30:166-75. [DOI: 10.1016/j.tiv.2015.01.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2014] [Revised: 11/30/2014] [Accepted: 01/05/2015] [Indexed: 02/08/2023]
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48
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Marinovich M, Boraso M, Testai E, Galli C. Safety evaluation of technically unavoidable traces of metals in cosmetics. Toxicol Lett 2015. [DOI: 10.1016/j.toxlet.2015.08.217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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49
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Vichi S, Sandström von Tobel J, Gemma S, Stanzel S, Kopp-Schneider A, Monnet-Tschudi F, Testai E, Zurich MG. Cell type-specific expression and localization of cytochrome P450 isoforms in tridimensional aggregating rat brain cell cultures. Toxicol In Vitro 2015; 30:176-84. [PMID: 25795400 DOI: 10.1016/j.tiv.2015.03.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2014] [Revised: 02/04/2015] [Accepted: 03/06/2015] [Indexed: 02/05/2023]
Abstract
Within the Predict-IV FP7 project a strategy for measurement of in vitro biokinetics was developed, requiring the characterization of the cellular model used, especially regarding biotransformation, which frequently depends on cytochrome P450 (CYP) activity. The extrahepatic in situ CYP-mediated metabolism is especially relevant in target organ toxicity. In this study, the constitutive mRNA levels and protein localization of different CYP isoforms were investigated in 3D aggregating brain cell cultures. CYP1A1, CYP2B1/B2, CYP2D2/4, CYP2E1 and CYP3A were expressed; CYP1A1 and 2B1 represented almost 80% of the total mRNA content. Double-immunolabeling revealed their presence in astrocytes, in neurons, and to a minor extent in oligodendrocytes, confirming the cell-specific localization of CYPs in the brain. These results together with the recently reported formation of an amiodarone metabolite following repeated exposure suggest that this cell culture system possesses some metabolic potential, most likely contributing to its high performance in neurotoxicological studies and support the use of this model in studying brain neurotoxicity involving mechanisms of toxication/detoxication.
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Affiliation(s)
- S Vichi
- Istituto Superiore di Sanità, Environment and Primary Prevention Department, Mechanisms of Toxicity Unit, Rome, Italy.
| | - J Sandström von Tobel
- Department of Physiology, University of Lausanne, Lausanne, Switzerland; Swiss Center for Applied Human Toxicology (SCAHT), Switzerland
| | - S Gemma
- Istituto Superiore di Sanità, Environment and Primary Prevention Department, Mechanisms of Toxicity Unit, Rome, Italy
| | - S Stanzel
- Department of Biostatistics, German Cancer Research Center, Heidelberg, Germany
| | - A Kopp-Schneider
- Department of Biostatistics, German Cancer Research Center, Heidelberg, Germany
| | - F Monnet-Tschudi
- Department of Physiology, University of Lausanne, Lausanne, Switzerland; Swiss Center for Applied Human Toxicology (SCAHT), Switzerland
| | - E Testai
- Istituto Superiore di Sanità, Environment and Primary Prevention Department, Mechanisms of Toxicity Unit, Rome, Italy
| | - M G Zurich
- Department of Physiology, University of Lausanne, Lausanne, Switzerland; Swiss Center for Applied Human Toxicology (SCAHT), Switzerland
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50
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Truisi GL, Consiglio ED, Parmentier C, Savary CC, Pomponio G, Bois F, Lauer B, Jossé R, Hewitt PG, Mueller SO, Richert L, Guillouzo A, Testai E. Understanding the biokinetics of ibuprofen after single and repeated treatments in rat and human in vitro liver cell systems. Toxicol Lett 2015; 233:172-86. [DOI: 10.1016/j.toxlet.2015.01.006] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2014] [Revised: 01/05/2015] [Accepted: 01/07/2015] [Indexed: 01/09/2023]
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