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Bou-Maroun E, Dahbi L, Dujourdy L, Ferret PJ, Chagnon MC. Migration Studies and Endocrine Disrupting Activities: Chemical Safety of Cosmetic Plastic Packaging. Polymers (Basel) 2023; 15:4009. [PMID: 37836058 PMCID: PMC10574997 DOI: 10.3390/polym15194009] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 10/02/2023] [Accepted: 10/03/2023] [Indexed: 10/15/2023] Open
Abstract
The endocrine activity and endocrine disruptor (ED) chemical profiles of eleven plastic packaging materials covering five major polymer types (3PET, 1HDPE, 4LDPE, 2 PP, and 1SAN) were investigated using in vitro cell-based reporter-gene assays and a non-targeted chemical analysis using gas chromatography coupled to mass spectrometry (GC-MS). To mimic cosmetic contact, six simulants (acidic, alkaline, neutral water, ethanol 30%, glycerin, and paraffin) were used in migration assays performed by filling the packaging with simulant. After 1 month at 50 °C, simulants were concentrated by Solid Phase Extraction (SPE) or Liquid-Liquid Extraction (LLE). The migration profiles of seven major endocrine disrupting chemicals detected from GC-MS in the different materials and simulants were compared with Estrogen Receptor (ER) and Androgen Receptor (AR) activities. With low extraction of ED chemicals in aqueous simulants, no endocrine activities were recorded in the leachates. Paraffin was shown to be the most extracting simulant of antiandrogenic chemicals, while glycerin has estrogenic activities. Overall, ED chemical migration in paraffin was correlated with hormonal activity. The NIAS 2,4-di-tert-butyl phenol and 7,9-di-tert-butyl1-oxaspiro (4,5) deca-6,9-diene-2,8-dione were two major ED chemicals present in all polymers (principally in PP and PE) and in the highest quantity in paraffin simulant. The use of glycerin and liquid paraffin as cosmetic product simulants was demonstrated to be relevant and complementary for the safety assessment of released compounds with endocrine activities in this integrated strategy combining bioassays and analytical chemistry approaches.
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Affiliation(s)
- Elias Bou-Maroun
- PAM UMR A 02.102, Food and Microbiological Processes, Institut Agro, Université Bourgogne Franche-Comté, 1 Esplanade Erasme, F-21000 Dijon, France
| | - Laurence Dahbi
- Derttech “Packtox”, NUTOX, INSERM U1231, Université Bourgogne Franche-Comté, F-21000 Dijon, France; (L.D.); (M.-C.C.)
| | - Laurence Dujourdy
- Institut Agro Dijon, Service d’Appui à la Recherche, F-21000 Dijon, France;
| | - Pierre-Jacques Ferret
- Safety Assessment Department, Pierre Fabre Dermo-Cosmétique, 3 Avenue Hubert Curien, 31035 Toulouse, France;
| | - Marie-Christine Chagnon
- Derttech “Packtox”, NUTOX, INSERM U1231, Université Bourgogne Franche-Comté, F-21000 Dijon, France; (L.D.); (M.-C.C.)
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Severin I, Dahbi L, Domenek S, Nguyen PM, Platel A, Vitrac O, Chagnon MC. Stratégie pour une sécurité chimique intégrée des matériaux d’emballage au contact des denrées alimentaires. Cahiers de Nutrition et de Diététique 2023. [DOI: 10.1016/j.cnd.2022.12.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Kambia N, Séverin I, Farce A, Dahbi L, Dine T, Moreau E, Sautou V, Chagnon MC. Comparative Effects of Di-(2-ethylhexyl)phthalate and Di-(2-ethylhexyl)terephthalate Metabolites on Thyroid Receptors: In Vitro and In Silico Studies. Metabolites 2021; 11:metabo11020094. [PMID: 33578748 PMCID: PMC7916494 DOI: 10.3390/metabo11020094] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Revised: 01/27/2021] [Accepted: 02/05/2021] [Indexed: 12/15/2022] Open
Abstract
Plasticizers added to polyvinylchloride (PVC) used in medical devices can be released into patients' biological fluids. Di-(2-ethylhexyl)phthalate (DEHP), a well-known reprotoxic and endocrine disruptor, must be replaced by alternative compounds. Di-(2-ethylhexyl) terephthalate (DEHT) is an interesting candidate due to its lower migration from PVC and its lack of reprotoxicity. However, there is still a lack of data to support the safety of its human metabolites with regard to their hormonal properties in the thyroid system. The effects of DEHT metabolites on thyroid/hormone receptors (TRs) were compared in vitro and in silico to those of DEHP. The oxidized metabolites of DEHT had no effect on T3 receptors whereas 5-hydroxy-mono-(ethylhexyl)phthalate (5-OH-MEHP) appeared to be primarily an agonist for TRs above 0.2 µg/mL with a synergistic effect on T3. Monoesters (MEHP and mono-(2-ethylhexyl)terephthalate, MEHT) were also active on T3 receptors. In vitro, MEHP was a partial agonist between 10 and 20 µg/mL. MEHT was an antagonist at non-cytotoxic concentrations (2-5 µg/mL) in a concentration-dependent manner. The results obtained with docking were consistent with those of the T-screen and provide additional information on the preferential affinity of monoesters and 5-OH-MEHP for TRs. This study highlights a lack of interactions between oxidized metabolites and TRs, confirming the interest of DEHT.
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Affiliation(s)
- Nicolas Kambia
- Université de Lille, CHU Lille, ULR 7365 GRITA, F-59000 Lille, France; nicolas.kambia-kpakpaga@univ-lille (N.K.); (T.D.)
| | - Isabelle Séverin
- Université Bourgogne Franche-Comté, INSERM U1231, NUTOX, Derttech “Packtox”, 21000 Dijon, France; (I.S.); (L.D.); (M.-C.C.)
| | - Amaury Farce
- Université de Lille, CHU Lille, INSERM U1286, INFINITE, F-59000 Lille, France;
| | - Laurence Dahbi
- Université Bourgogne Franche-Comté, INSERM U1231, NUTOX, Derttech “Packtox”, 21000 Dijon, France; (I.S.); (L.D.); (M.-C.C.)
| | - Thierry Dine
- Université de Lille, CHU Lille, ULR 7365 GRITA, F-59000 Lille, France; nicolas.kambia-kpakpaga@univ-lille (N.K.); (T.D.)
| | - Emmanuel Moreau
- Université Clermont Auvergne, INSERM U1240, IMOST, 63000 Clermont-Ferrand, France;
| | - Valérie Sautou
- Université Clermont Auvergne, CHU Clermont Ferrand, CNRS, SIGMA Clermont, 63000 Clermont-Ferrand, France
- Correspondence: or ; Tel.: +33-4731-78021
| | - Marie-Christine Chagnon
- Université Bourgogne Franche-Comté, INSERM U1231, NUTOX, Derttech “Packtox”, 21000 Dijon, France; (I.S.); (L.D.); (M.-C.C.)
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Doumani N, Severin I, Dahbi L, Bou-Maroun E, Tueni M, Sok N, Chagnon MC, Maalouly J, Cayot P. Lemon Juice, Sesame Paste, and Autoclaving Influence Iron Bioavailability of Hummus: Assessment by an In Vitro Digestion/Caco-2 Cell Model. Foods 2020; 9:E474. [PMID: 32290180 PMCID: PMC7230787 DOI: 10.3390/foods9040474] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [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: 03/19/2020] [Revised: 04/04/2020] [Accepted: 04/07/2020] [Indexed: 02/07/2023] Open
Abstract
Hummus, an iron-containing plant-based dish mainly made from chickpea purée, tahini, lemon juice and garlic, could be a valuable source of iron when bioavailable. Since the processing and formulation of food influence iron bioavailability, the present study investigated for the first time, their effects on hummus. Firstly, iron bioaccessibility was assessed on eight samples (prepared according to the screening Hadamard matrix) by in vitro digestion preceding iron dialysis. Then, iron bioavailability of four selected samples was estimated by the in vitro digestion/Caco-2 cell model. Total and dialyzable iron were determined by the atomic absorption spectrometry and ferritin formation was determined using an ELISA kit. Only autoclaving, among other processes, had a significant effect on iron bioaccessibility (+9.5, p < 0.05). Lemon juice had the highest positive effect (+15.9, p < 0.05). Consequently, the effect of its acidic components were investigated based on a full factorial 23 experimental design; no significant difference was detected. Garlic's effect was not significant, but tahini's effect was negative (-8.9, p < 0.05). Despite the latter, hummus had a higher iron bioavailability than only cooked chickpeas (30.4 and 7.23 ng ferritin/mg protein, respectively). In conclusion, hummus may be a promising source of iron; further in vivo studies are needed for confirmation.
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Affiliation(s)
- Nour Doumani
- UMR PAM Food and Microbiological Processes, University of Burgundy Franche Comté/AgroSup Dijon, 1 esplanade Erasme, 21000 Dijon, France; (E.B.-M.); (N.S.); (P.C.)
- Department of Chemistry and Biochemistry, Faculty of Sciences II, Lebanese University, Jdeideth El Matn, Fanar 90656, Lebanon;
- Department of Biology and Nutrition, Faculty of Sciences II, Lebanese University, Jdeideth El Matn, Fanar 90656, Lebanon;
| | - Isabelle Severin
- NUTOX UMR INSERM 1231 Laboratory of Nutrition, Physiology, and Toxicology, University of Burgundy Franche Comté/AgroSup Dijon, 1 esplanade Erasme, 21000 Dijon, France; (I.S.); (L.D.); (M.-C.C.)
| | - Laurence Dahbi
- NUTOX UMR INSERM 1231 Laboratory of Nutrition, Physiology, and Toxicology, University of Burgundy Franche Comté/AgroSup Dijon, 1 esplanade Erasme, 21000 Dijon, France; (I.S.); (L.D.); (M.-C.C.)
| | - Elias Bou-Maroun
- UMR PAM Food and Microbiological Processes, University of Burgundy Franche Comté/AgroSup Dijon, 1 esplanade Erasme, 21000 Dijon, France; (E.B.-M.); (N.S.); (P.C.)
| | - Maya Tueni
- Department of Biology and Nutrition, Faculty of Sciences II, Lebanese University, Jdeideth El Matn, Fanar 90656, Lebanon;
| | - Nicolas Sok
- UMR PAM Food and Microbiological Processes, University of Burgundy Franche Comté/AgroSup Dijon, 1 esplanade Erasme, 21000 Dijon, France; (E.B.-M.); (N.S.); (P.C.)
| | - Marie-Christine Chagnon
- NUTOX UMR INSERM 1231 Laboratory of Nutrition, Physiology, and Toxicology, University of Burgundy Franche Comté/AgroSup Dijon, 1 esplanade Erasme, 21000 Dijon, France; (I.S.); (L.D.); (M.-C.C.)
| | - Jacqueline Maalouly
- Department of Chemistry and Biochemistry, Faculty of Sciences II, Lebanese University, Jdeideth El Matn, Fanar 90656, Lebanon;
| | - Philippe Cayot
- UMR PAM Food and Microbiological Processes, University of Burgundy Franche Comté/AgroSup Dijon, 1 esplanade Erasme, 21000 Dijon, France; (E.B.-M.); (N.S.); (P.C.)
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Kambia NK, Séverin I, Farce A, Moreau E, Dahbi L, Duval C, Dine T, Sautou V, Chagnon MC. In vitro and in silico hormonal activity studies of di-(2-ethylhexyl)terephthalate, a di-(2-ethylhexyl)phthalate substitute used in medical devices, and its metabolites. J Appl Toxicol 2019; 39:1043-1056. [PMID: 30847963 DOI: 10.1002/jat.3792] [Citation(s) in RCA: 19] [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: 12/27/2018] [Revised: 01/28/2019] [Accepted: 01/30/2019] [Indexed: 01/31/2023]
Abstract
Plasticizers added to polyvinylchloride used in medical devices can be released into patients' biological fluids. The substitution of di-(2-ethylhexyl)phthalate (DEHP) by alternative plasticizers is essential but their safety must be demonstrated. DEHP, di-(2-ethylhexyl)terephthalate (DEHT) and their metabolites were investigated using level 2 Organization for Economic Co-operation and Development bioassays to screen for in vitro hormonal changes. Differences between the DEHP and DEHT metabolites were observed. Albeit weak, the hormonal activities of DEHT-derived metabolites, e.g., 5-OH metabolite of mono-(ethylhexyl)terephthalate (5-OH-MEHT), were detected and the results of docking experiments performed on estrogen receptor alpha and androgen receptor agreed with the biological results. A co-stimulation of human estrogen receptor alpha and human androgen receptor was also observed. With regard to steroidogenesis, a 16-fold increase in estrogen synthesis was measured with 5-OH-MEHT. Therefore, even if DEHT remains an interesting alternative to DEHP because of its low migration from medical devices, it seems important to verify that multi-exposed patients in neonatal intensive care units do not have urinary levels of oxidized metabolites, in particular 5-OH-MEHT, suggesting a potential endocrine-disrupting effect.
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Affiliation(s)
- Nicolas K Kambia
- EA 7365, GRITA-Groupe de Recherche sur les formes Injectables et les Technologies Associées, Université de Lille, F-59000, Lille, France.,CHU Lille, Institut de Pharmacie, F-59 000, Lille, France
| | - Isabelle Séverin
- Derttech "Packtox", NUTOX, INSERM U1231, Université Bourgogne Franche-Comté, AgroSup Dijon, 21000, Dijon, France
| | - Amaury Farce
- EA 7365, GRITA-Groupe de Recherche sur les formes Injectables et les Technologies Associées, Université de Lille, F-59000, Lille, France.,CHU Lille, Institut de Pharmacie, F-59 000, Lille, France
| | - Emmanuel Moreau
- CHU Clermont-Ferrand, CNRS, SIGMA Clermont-Ferrand, ICCF, Université Clermont Auvergne, 63000, Clermont-Ferrand, France
| | - Laurence Dahbi
- Derttech "Packtox", NUTOX, INSERM U1231, Université Bourgogne Franche-Comté, AgroSup Dijon, 21000, Dijon, France
| | - Claire Duval
- EA 7365, GRITA-Groupe de Recherche sur les formes Injectables et les Technologies Associées, Université de Lille, F-59000, Lille, France.,CHU Lille, Institut de Pharmacie, F-59 000, Lille, France
| | - Thierry Dine
- EA 7365, GRITA-Groupe de Recherche sur les formes Injectables et les Technologies Associées, Université de Lille, F-59000, Lille, France.,CHU Lille, Institut de Pharmacie, F-59 000, Lille, France
| | - Valérie Sautou
- INSERM U1240, Imagerie Moléculaire et Stratégies Théranostiques, Université Clermont Auvergne, F-63000, Clermont Ferrand, France
| | - Marie-Christine Chagnon
- Derttech "Packtox", NUTOX, INSERM U1231, Université Bourgogne Franche-Comté, AgroSup Dijon, 21000, Dijon, France
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Bou-Maroun E, Dahbi L, Gomez-Berrada MP, Pierre P, Rakotomalala S, Ferret PJ, Chagnon MC. Chemical analysis and potential endocrine activities of aluminium coatings intended to be in contact with cosmetic water. J Pharm Biomed Anal 2017; 145:641-650. [DOI: 10.1016/j.jpba.2017.07.061] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2017] [Revised: 07/23/2017] [Accepted: 07/31/2017] [Indexed: 10/19/2022]
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Severin I, Souton E, Dahbi L, Chagnon MC. Use of bioassays to assess hazard of food contact material extracts: State of the art. Food Chem Toxicol 2017; 105:429-447. [PMID: 28476634 DOI: 10.1016/j.fct.2017.04.046] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2017] [Revised: 04/10/2017] [Accepted: 04/29/2017] [Indexed: 01/17/2023]
Abstract
This review focuses on the use of in vitro bioassays for the hazard assessment of food contact materials (FCM) as a relevant strategy, in complement to analytical methods. FCM may transfer constituents to foods, not always detected by analytical chemistry, resulting in low but measurable human exposures. Testing FCM extracts with bioassays represents the biological response of a combination of substances, able to be released from the finished materials. Furthermore, this approach is particularly useful regarding the current risk assessment challenges with unpredicted/unidentified non-intentionally added substances (NIAS) that can be leached from the FCM in the food. Bioassays applied to assess hazard of different FCM types are described for, to date, the toxicological endpoints able to be expressed at low levels; cytotoxicity, genotoxicity and endocrine disruption potential. The bioassay strengths and relative key points needed to correctly use and improve the performance of bioassays for an additional FCM risk assessment is developed. This review compiles studies showing that combining both chemical and toxicological analyses presents a very promising and pragmatic tool for identifying new undesirable NIAS (not predicted) which can represent a great part of the migrating substances and/or "cocktail effect".
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Affiliation(s)
- Isabelle Severin
- Derttech « Packtox », University of Bourgogne Franche-Comté, INSERM LNC UMR 1231, AgroSupDijon, F-21000 Dijon, France
| | - Emilie Souton
- Derttech « Packtox », University of Bourgogne Franche-Comté, INSERM LNC UMR 1231, AgroSupDijon, F-21000 Dijon, France
| | - Laurence Dahbi
- Derttech « Packtox », University of Bourgogne Franche-Comté, INSERM LNC UMR 1231, AgroSupDijon, F-21000 Dijon, France
| | - Marie Christine Chagnon
- Derttech « Packtox », University of Bourgogne Franche-Comté, INSERM LNC UMR 1231, AgroSupDijon, F-21000 Dijon, France.
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Gomez Berrada M, Chiter M, Galonnier M, Pierré P, Chagnon M, Dahbi L, Lemkine G, Ferret P. Strategy of evaluation of the endocrine disruptor potential: Application to the analysis of new resins. Toxicol Lett 2016. [DOI: 10.1016/j.toxlet.2016.06.2074] [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: 12/01/2022]
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Riquet A, Breysse C, Dahbi L, Loriot C, Severin I, Chagnon M. The consequences of physical post-treatments (microwave and electron-beam) on food/packaging interactions: A physicochemical and toxicological approach. Food Chem 2016; 199:59-69. [DOI: 10.1016/j.foodchem.2015.09.034] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2015] [Revised: 09/07/2015] [Accepted: 09/10/2015] [Indexed: 11/28/2022]
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Séverin I, Lionti K, Dahbi L, Loriot C, Toury B, Chagnon MC. In vitro toxicity assessment of extracts derived from sol-gel coatings on polycarbonate intended to be used in food contact applications. Food Chem Toxicol 2016; 93:51-7. [PMID: 27137982 DOI: 10.1016/j.fct.2016.04.025] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [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: 03/04/2016] [Revised: 04/28/2016] [Accepted: 04/29/2016] [Indexed: 11/29/2022]
Abstract
Polycarbonate is a widely used polymer in food contact applications all around the world. However, due to the potential release of Bisphenol A (BPA) during repeated washing cycles, its use becomes compromised as BPA is known for being an endocrine disruptor for rodents. In order to tackle this issue, sol-gel coatings based on organoalkoxysiloxane were developed on PC, to act as a physical barrier. To this end, two sol-gel systems based on tetraethylorthosilicate (TEOS), methyltriethoxysilane (MTES) and 3-glycidyloxypropyltriethoxysilane (GPTES), three common sol-gel precursors, were prepared. The coatings derived from the latter two systems were then studied with regards to their potential toxicity in vitro. Migration tests were performed in food simulants, and the maximal migration was obtained in ethanol 10% (v/v) for one system and in isooctane for the other one. In vitro genotoxicity was assessed with the Ames test (OECD 471) and the micronucleus assay (OECD 487), and no genotoxic effect was observed. Moreover, the estrogenic activity of the extracts was studied with a transcriptional activation assay using transient transfection in human cells; none of the extracts was found estrogenic. These negative in vitro results are highly promising for the future use of these new barrier coating formulations onto food contact materials.
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Affiliation(s)
- Isabelle Séverin
- Derttech « Packtox » LNC UMRU866, Nutox Team, Agrosupdijon, Université Bourgogne-Franche-Comté, Dijon, 21000, France.
| | | | - Laurence Dahbi
- Derttech « Packtox » LNC UMRU866, Nutox Team, Agrosupdijon, Université Bourgogne-Franche-Comté, Dijon, 21000, France
| | - Catherine Loriot
- Laboratoire National de Metrologie et d'essais, Trappes 78197, France
| | - Bérangère Toury
- Laboratoire des Multimatériaux et Interfaces UMR 5615, University of Lyon, Villeurbanne, 69100, France
| | - Marie-Christine Chagnon
- Derttech « Packtox » LNC UMRU866, Nutox Team, Agrosupdijon, Université Bourgogne-Franche-Comté, Dijon, 21000, France
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Lionti K, Séverin I, Dahbi L, Toury B, Chagnon MC. In vitro genotoxicity assessment of MTES, GPTES and TEOS, three precursors intended for use in food contact coatings. Food Chem Toxicol 2014; 65:76-81. [DOI: 10.1016/j.fct.2013.11.037] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2013] [Revised: 10/21/2013] [Accepted: 11/25/2013] [Indexed: 11/30/2022]
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Ruocco N, Dahbi L, Driva P, Hadjichristidis N, Allgaier J, Radulescu A, Sharp M, Lindner P, Straube E, Pyckhout-Hintzen W, Richter D. Microscopic Relaxation Processes in Branched-Linear Polymer Blends by Rheo-SANS. Macromolecules 2013. [DOI: 10.1021/ma4014498] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- N. Ruocco
- Jülich
Center for Neutron Science, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - L. Dahbi
- Jülich
Center for Neutron Science, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - P. Driva
- Department
of Chemistry, University of Athens,15771 Athens Greece
| | | | - J. Allgaier
- Jülich
Center for Neutron Science, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A. Radulescu
- Jülich Centre for Neutron Science, FRM 2, 85747 Garching, Germany
| | - M. Sharp
- Geesthacht Neutron Facility, GKSS Research Centre, 21502 Geesthacht, Germany
| | - P. Lindner
- Institut Laue-Langevin, 38042 Grenoble, France
| | - E. Straube
- FB Physik, Martin-Luther Universität Halle, D-06099 Halle, Germany
| | - W. Pyckhout-Hintzen
- Jülich
Center for Neutron Science, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - D. Richter
- Jülich
Center for Neutron Science, Forschungszentrum Jülich, 52425 Jülich, Germany
- Jülich Centre for Neutron Science, FRM 2, 85747 Garching, Germany
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Severin I, Dahbi L, Berges C, Dumont C, Chagnon M. Food contact materials: Strategy for quality and food safety of packaging systems. Toxicol Lett 2011. [DOI: 10.1016/j.toxlet.2011.05.732] [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: 11/24/2022]
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Honkalampi-Hämäläinen U, Bradley E, Castle L, Severin I, Dahbi L, Dahlman O, Lhuguenot JC, Andersson M, Hakulinen P, Hoornstra D, Mäki-Paakkanen J, Salkinoja-Salonen M, Turco L, Stammati A, Zucco F, Weber A, von Wright A. Safety evaluation of food contact paper and board using chemical tests and in vitro bioassays: role of known and unknown substances. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2010; 27:406-15. [DOI: 10.1080/19440040903401358] [Citation(s) in RCA: 23] [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: 01/01/2023]
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Dahbi L, Alexander M, Trappe V, Dhont J, Schurtenberger P. Rheology and structural arrest of casein suspensions. J Colloid Interface Sci 2010; 342:564-70. [DOI: 10.1016/j.jcis.2009.10.042] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2009] [Revised: 10/18/2009] [Accepted: 10/20/2009] [Indexed: 10/20/2022]
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Jondeau A, Dahbi L, Bani-Estivals MH, Chagnon MC. Evaluation of the sensitivity of three sublethal cytotoxicity assays in human HepG2 cell line using water contaminants. Toxicology 2006; 226:218-28. [PMID: 16930799 DOI: 10.1016/j.tox.2006.07.007] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2006] [Revised: 07/03/2006] [Accepted: 07/04/2006] [Indexed: 10/24/2022]
Abstract
The in vitro toxicological index IC50 (the millimolar concentration of compound which inhibits response assay by 50% compared to the solvent control) of 11 water contaminants (acrylamide, atrazine, B[a]P, BPA, 2,4-DAT, 17-alphaEE, H(2)O(2), 4-OP, sodium bromate, sodium chlorate, sodium nitrate) was evaluated on the human hepatoma (HepG2) cells using three short-term bioassays related to their morbidity status [radiometric RNA synthesis assay (RNA), luminometric ATP assay (ATP), fluorometric Alamar blue assay (AB)]. Among all substances, we were not able to determine atrazine IC50 value whatever the test used. Furthermore, B[a]P was not cytotoxic in the ATP and AB assays. Statistical analysis revealed a correlation between the IC50 values obtained in the three assays. Except with 4-OP, RNA assay was always inhibited at lower concentrations than those required in the other assays, suggesting that this assay is a very sensitive indicator of the presence of toxic compounds. ATP and AB assays responded to a similar pattern. Due to its higher sensitivity and its reliability, RNA synthesis assay using HepG2 cell line provides the most suitable tool for the screening of water contaminants.
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Affiliation(s)
- Adeline Jondeau
- ENSBANA, UMR (1234) Toxicologie Alimentaire, 1 Esplanade Erasme, F-21000 Dijon, France.
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Séverin I, Jondeau A, Dahbi L, Chagnon MC. 2,4-Diaminotoluene (2,4-DAT)-induced DNA damage, DNA repair and micronucleus formation in the human hepatoma cell line HepG2. Toxicology 2005; 213:138-46. [PMID: 15996806 DOI: 10.1016/j.tox.2005.05.021] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2005] [Revised: 05/25/2005] [Accepted: 05/26/2005] [Indexed: 11/30/2022]
Abstract
2,4-Diaminotoluene (2,4-DAT) is a widely used industrial intermediate and human exposure is possible in the dye and plastics industries. We investigated the genotoxicity of the environmental pollutant, 2,4-DAT, in human HepG2 cells using the unscheduled DNA synthesis (UDS) test, the micronucleus (MN) assay and single-cell gel electrophoresis (SCGE). 2,4-DAT was first tested by the RNA synthesis inhibition test as a cytotoxicity assay: the IC(50) of 2,4-DAT was 5.2 mM after 20 h of exposure. The compound had a genotoxic effect at concentrations from 1.45 to 6.80 mM in both micronucleus and comet assays. In the micronucleus assay, the number of MN/1000 BNC was 3.5 times higher at a concentration of 6.80 mM 2,4-DAT than in the negative control. At the same concentration, DNA migration (SCGE) showed an Olive tail moment (OTM) of 3.56+/-0.45, as compared to 0.19+/-0.02 for the negative control. The UDS test detected genotoxic effects at lower concentrations than did the other assays (0.01-5 mM). The percentage of cells in repair increased in a concentration-dependent manner to a maximum of 57% at 1mM. At the highest concentration tested (5 mM), the NNG/cell score was 13.6+/-0.5 whereas it was -2.7+/-0.5 for the negative control. These data, based on various endpoints, show a midly genotoxic effect of 2,4-DAT in the HepG2 cells and confirm that this cell line is a suitable model to study the toxic effects of aromatic amines.
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Affiliation(s)
- Isabelle Séverin
- Laboratory of Food Toxicology, UMR 1234 INRA/ENSBANA, 1 Esplanade Erasme, 21000 Dijon, France.
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Severin I, Dahbi L, Lhuguenot JC, Andersson MA, Hoornstra D, Salkinoja-Salonen M, Turco L, Zucco F, Stammati A, Dahlman O, Castle L, Savolainen M, Weber A, Honkalampi-Hämäläinen U, Von Wright A. Safety assessment of food-contact paper and board using a battery of short-term toxicity tests: European union BIOSAFEPAPER project. ACTA ACUST UNITED AC 2005; 22:1032-41. [PMID: 16227187 DOI: 10.1080/02652030500183425] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
An European Union (EU)-funded project QLK1-CT-2001-00930 (BIOSAFEPAPER) involves the development, validation and intercalibration of a short-term battery of toxicological tests for the safety assessment of food-contact paper and board. Dissemination of the results to industry, legislators (e.g. DG Consumer Protection, DG Enterprises, DG Research), standardization bodies such as CEN, and consumers will create an agreed risk evaluation procedure. The project involves pre-normative research in order to establish a set of in-vitro cytotoxicity and genotoxicity tests that will be easily adaptable to food-contact fibre-based materials and have endpoints relevant to consumer safety, including sub-lethal cellular events. These tests will be performed on samples representing actual migration conditions from food-contact paper and board with respect to different foodstuffs, and should form an experimental basis for scientifically sound recommendations for a harmonized system of risk evaluation and product testing.
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Affiliation(s)
- I Severin
- Université de Bourgogne, Food Toxicology Laboratory, Campus Universitaire, 1, esplanade Erasme, F-21 000 Dijon, France
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