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Lamouroux C, Bertolotti L, Coste C, Pralong P, Lefevre MA, Pasteur J, Clément A, Le Bouëdec MCF, Charbotel B, Fassier JB, Vocanson M, Nicolas JF, Hacard F, Nosbaum A. Glove-related contact dermatitis: Diagnostic value of a repeated application test. Contact Dermatitis 2024; 90:528-530. [PMID: 38291586 DOI: 10.1111/cod.14508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 01/08/2024] [Accepted: 01/12/2024] [Indexed: 02/01/2024]
Affiliation(s)
- Céline Lamouroux
- CRPPE Lyon, Hôpital Lyon Sud-Hospices Civils de Lyon, Pierre-Bénite, France
- UMRESTTE UMR T 9405, Université Claude Bernard Lyon 1, Lyon, France
| | - Léa Bertolotti
- CRPPE Lyon, Hôpital Lyon Sud-Hospices Civils de Lyon, Pierre-Bénite, France
- Allergologie et Immunologie Clinique, Hôpital Lyon Sud-Hospices Civils de Lyon, Pierre-Bénite, France
| | - Clio Coste
- CRPPE Lyon, Hôpital Lyon Sud-Hospices Civils de Lyon, Pierre-Bénite, France
- UMRESTTE UMR T 9405, Université Claude Bernard Lyon 1, Lyon, France
| | - Pauline Pralong
- Service de Dermatologie, Allergologie et Photobiologie, Hôpital Grenoble Alpes, Grenoble, France
| | - Marine-Alexia Lefevre
- Service de Dermato-Allergologie, Centre Hospitalier Universitaire de Saint-Etienne, Saint-Priest-en-Jarez, France
- CIRI, Centre International de Recherche en Infectiologie, Team Epidermal Immunity and Allergy, INSERM, U1111, Lyon, France
| | - Justine Pasteur
- Service de Dermatologie, CHU Clermont-Ferrand, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Aude Clément
- Service de Dermatologie, CHU Clermont-Ferrand, Université Clermont Auvergne, Clermont-Ferrand, France
| | | | - Barbara Charbotel
- CRPPE Lyon, Hôpital Lyon Sud-Hospices Civils de Lyon, Pierre-Bénite, France
- UMRESTTE UMR T 9405, Université Claude Bernard Lyon 1, Lyon, France
| | - Jean-Baptiste Fassier
- CRPPE Lyon, Hôpital Lyon Sud-Hospices Civils de Lyon, Pierre-Bénite, France
- UMRESTTE UMR T 9405, Université Claude Bernard Lyon 1, Lyon, France
| | - Marc Vocanson
- CIRI, Centre International de Recherche en Infectiologie, Team Epidermal Immunity and Allergy, INSERM, U1111, Lyon, France
| | - Jean-François Nicolas
- Allergologie et Immunologie Clinique, Hôpital Lyon Sud-Hospices Civils de Lyon, Pierre-Bénite, France
- CIRI, Centre International de Recherche en Infectiologie, Team Epidermal Immunity and Allergy, INSERM, U1111, Lyon, France
| | - Florence Hacard
- Allergologie et Immunologie Clinique, Hôpital Lyon Sud-Hospices Civils de Lyon, Pierre-Bénite, France
| | - Audrey Nosbaum
- Allergologie et Immunologie Clinique, Hôpital Lyon Sud-Hospices Civils de Lyon, Pierre-Bénite, France
- CIRI, Centre International de Recherche en Infectiologie, Team Epidermal Immunity and Allergy, INSERM, U1111, Lyon, France
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Scherer M, Lamouroux C, Fiquemont A, Fassier JB, Gautheron L, Massardier-Pilonchery A, Charbotel B. Outcome of the Compensation Process Initiated by an Occupational and Environmental Diseases Center. Med Lav 2024; 115:e2024005. [PMID: 38411975 PMCID: PMC10915680 DOI: 10.23749/mdl.v115i1.15517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Accepted: 01/10/2024] [Indexed: 02/28/2024]
Abstract
BACKGROUND Regional Centers for Occupational and Environmental Pathologies (CRPPE) are responsible for identifying possible occupational etiologies of pathologies. When an occupational origin is determined, an Initial Medical Certificate (IMC) is given to the patient to allow him to initiate a procedure for recognition as an occupational disease (OD) by his health insurance organization. OBJECTIVES The main aim of this study was to investigate the outcome of occupational disease claims in patients who received an IMC delivered by the CRPPE of Lyon. METHODS A telephone interview was systematically conducted with patients who consulted the CRPPE for a claim for occupational disease recognition between 07/2020 and 06/2021, about six months after the consultation. It was conducted by a physician using a standardized questionnaire. RESULTS Out of 128 patients eligible for this study, 98 were included. Diseases of the respiratory system (34.7%) and cancers (28.6%) were the most common pathologies in our population. A process of OD compensation was initiated by 86 patients (87.8%). At the time of the study, the outcome was favorable for 63 patients (73.3%). Moreover, 18 patients (18.4%) wished for additional help from the CRPPE to carry out the procedures. Nine patients requested a new consultation, including five who still needed to complete the process. CONCLUSION This study shows the benefit of a consultation by occupational disease consultants. However, difficulties still need to be solved in these procedures. Thus, the systematic follow-up of patients shows its advantages. The provision of support to carry out the process seems necessary.
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Affiliation(s)
- Mathilde Scherer
- CRPPE-Lyon, Centre Régional de Pathologies Professionnelles et Environnementales de Lyon, Centre Hospitalier Lyon Sud, Hospices Civils de Lyon, Pierre Bénite, France
- Université de Lyon, Université Lyon 1, Université Gustave Eiffel—Ifsttar, Umrestte, UMR T 9405, Domaine Rockefeller, Lyon, France
| | - Céline Lamouroux
- CRPPE-Lyon, Centre Régional de Pathologies Professionnelles et Environnementales de Lyon, Centre Hospitalier Lyon Sud, Hospices Civils de Lyon, Pierre Bénite, France
- Université de Lyon, Université Lyon 1, Université Gustave Eiffel—Ifsttar, Umrestte, UMR T 9405, Domaine Rockefeller, Lyon, France
| | - Alizée Fiquemont
- CRPPE-Lyon, Centre Régional de Pathologies Professionnelles et Environnementales de Lyon, Centre Hospitalier Lyon Sud, Hospices Civils de Lyon, Pierre Bénite, France
| | - Jean-Baptiste Fassier
- CRPPE-Lyon, Centre Régional de Pathologies Professionnelles et Environnementales de Lyon, Centre Hospitalier Lyon Sud, Hospices Civils de Lyon, Pierre Bénite, France
- Université de Lyon, Université Lyon 1, Université Gustave Eiffel—Ifsttar, Umrestte, UMR T 9405, Domaine Rockefeller, Lyon, France
| | - Laure Gautheron
- CRPPE-Lyon, Centre Régional de Pathologies Professionnelles et Environnementales de Lyon, Centre Hospitalier Lyon Sud, Hospices Civils de Lyon, Pierre Bénite, France
| | - Amélie Massardier-Pilonchery
- CRPPE-Lyon, Centre Régional de Pathologies Professionnelles et Environnementales de Lyon, Centre Hospitalier Lyon Sud, Hospices Civils de Lyon, Pierre Bénite, France
- Université de Lyon, Université Lyon 1, Université Gustave Eiffel—Ifsttar, Umrestte, UMR T 9405, Domaine Rockefeller, Lyon, France
| | - Barbara Charbotel
- CRPPE-Lyon, Centre Régional de Pathologies Professionnelles et Environnementales de Lyon, Centre Hospitalier Lyon Sud, Hospices Civils de Lyon, Pierre Bénite, France
- Université de Lyon, Université Lyon 1, Université Gustave Eiffel—Ifsttar, Umrestte, UMR T 9405, Domaine Rockefeller, Lyon, France
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Roger C, Paul A, Fort E, Lamouroux C, Samal A, Spinosi J, Charbotel B. Changes in the European Union definition for endocrine disruptors: how many molecules remain a cause for concern? The example of crop protection products used in agriculture in France in the six last decades. Front Public Health 2024; 11:1343047. [PMID: 38292391 PMCID: PMC10826603 DOI: 10.3389/fpubh.2023.1343047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Accepted: 12/18/2023] [Indexed: 02/01/2024] Open
Abstract
Background The endocrine-disrupting effects of phytopharmaceutical active substances (PAS) on human health are a public health concern. The CIPATOX-PE database, created in 2018, listed the PAS authorized in France between 1961 and 2014 presenting endocrine-disrupting effects for humans according to data from official international organizations. Since the creation of CIPATOX-PE, European regulations have changed, and new initiatives identifying substances with endocrine-disrupting effects have been implemented and new PAS have been licensed. Objectives The study aimed to update the CIPATOX-PE database by considering new 2018 European endocrine-disrupting effect identification criteria as well as the new PAS authorized on the market in France since 2015. Methods The endocrine-disrupting effect assessment of PAS from five international governmental and non-governmental initiatives was reviewed, and levels of evidence were retained by these initiatives for eighteen endocrine target organs. Results The synthesis of the identified endocrine-disrupting effects allowed to assign an endocrine-disrupting effect level of concern for 241 PAS among 980 authorized in France between 1961 and 2021. Thus, according to the updated CIPATOX-PE data, 44 PAS (18.3%) had an endocrine-disrupting effect classified as "high concern," 133 PAS (55.2%) "concern," and 64 PAS (26.6%) "unknown effect" in the current state of knowledge. In the study, 42 PAS with an endocrine-disrupting effect of "high concern" are similarly classified in CIPATOX-PE-2018 and 2021, and 2 new PAS were identified as having an endocrine-disrupting effect of "high concern" in the update, and both were previously classified with an endocrine-disrupting effect of "concern" in CIPATOX-PE-2018. Finally, a PAS was identified as having an endocrine-disrupting effect of "high concern" in CIPATOX-PE-2018 but is now classified as a PAS not investigated for endocrine-disrupting effects in CIPATOX-PE-2021. The endocrine target organs associated with the largest number of PAS with an endocrine-disrupting effect of "high concern" is the reproductive system with 31 PAS. This is followed by the thyroid with 25 PAS and the hypothalamic-pituitary axis (excluding the gonadotropic axis) with 5 PAS. Discussion The proposed endocrine-disrupting effect indicator, which is not a regulatory classification, can be used as an epidemiological tool for occupational risks and surveillance.
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Affiliation(s)
- Cloé Roger
- University Lyon, Umrestte UMR T 9405 (University Claude Bernard Lyon 1 and Gustave Eiffel), Lyon, France
| | - Adèle Paul
- University Lyon, Umrestte UMR T 9405 (University Claude Bernard Lyon 1 and Gustave Eiffel), Lyon, France
| | - Emmanuel Fort
- University Lyon, Umrestte UMR T 9405 (University Claude Bernard Lyon 1 and Gustave Eiffel), Lyon, France
| | - Céline Lamouroux
- University Lyon, Umrestte UMR T 9405 (University Claude Bernard Lyon 1 and Gustave Eiffel), Lyon, France
- CRPPE de Lyon, Hospices Civils de Lyon, Hôpital Lyon Sud, Lyon, France
| | - Areejit Samal
- The Institute of Mathematical Sciences, A CI of Homi Bhabha National Institute, Chennai, India
| | - Johan Spinosi
- Santé Publique France, French National Public Health Agency, Paris, France
| | - Barbara Charbotel
- University Lyon, Umrestte UMR T 9405 (University Claude Bernard Lyon 1 and Gustave Eiffel), Lyon, France
- CRPPE de Lyon, Hospices Civils de Lyon, Hôpital Lyon Sud, Lyon, France
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Lamouroux C, Bertolotti-Potachin L, Charbotel B, Nosbaum A, Nicolas JF. Allergic contact dermatitis to diclofenac gel due to propylene glycol sensitization: usefulness of repeated open application tests to determine safer alternatives. Eur J Dermatol 2023; 33:42-43. [PMID: 37178032 DOI: 10.1684/ejd.2023.4409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Affiliation(s)
- Céline Lamouroux
- Service Maladies Professionnelles, CRPPE-Lyon, CHU Lyon Sud, UMRESTTE, Université Lyon 1
| | | | - Barbara Charbotel
- Service Maladies Professionnelles, CRPPE-Lyon, CHU Lyon Sud, UMRESTTE, Université Lyon 1
| | - Audrey Nosbaum
- Service Allergologie et Immunologie Clinique, CHU Lyon-Sud ; INSERM U1111 /CIRI ; Université Lyon 1
| | - Jean-François Nicolas
- Service Allergologie et Immunologie Clinique, CHU Lyon-Sud ; INSERM U1111 /CIRI ; Université Lyon 1
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Carlier S, Nasser M, Fort E, Lamouroux C, Si-Mohamed S, Chalabreysse L, Maury JM, Diesler R, Cottin V, Charbotel B. Role of the occupational disease consultant in the multidisciplinary discussion of interstitial lung diseases. Respir Res 2022; 23:332. [PMID: 36482462 PMCID: PMC9733286 DOI: 10.1186/s12931-022-02257-6] [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: 05/18/2022] [Accepted: 11/21/2022] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Diffuse interstitial lung diseases (ILD) constitute a heterogeneous group of conditions with complex etiological diagnoses requiring a multidisciplinary approach. Much is still unknown about them, particularly their relationship with occupational exposures. The primary objective of this study was to investigate the distribution of occupational exposures according to type of ILD. The secondary objectives were to estimate the proportion of ILDs possibly related to occupational exposure and to evaluate the added value of the participation of an occupational disease consultant in ILD multidisciplinary discussions (MDD). METHODS From May to December 2020, all consecutive patients with ILD whose cases were reviewed during a MDD in a referral centre for ILD were prospectively offered a consultation with an occupational disease consultant. RESULTS Of the 156 patients with ILD whose cases were reviewed in MDD during the study period, 141 patients attended an occupational exposure consultation. Occupational exposure was identified in 97 patients. Occupational exposure to asbestos was found in 12/31 (38.7%) patients with idiopathic pulmonary fibrosis (IPF) and in 9/18 (50.0%) patients with unclassifiable fibrosis. Occupational exposure to metal dust was found in 13/31 (41.9%) patients with IPFs and 10/18 (55.6%) patients with unclassifiable fibrosis. Silica exposure was found in 12/50 (24.0%) patients with autoimmune ILD. The link between occupational exposure and ILD was confirmed for 41 patients after the specialist occupational consultation. The occupational origin had not been considered (n = 9) or had been excluded or neglected (n = 4) by the MDD before the specialised consultation. A total of 24 (17%) patients were advised to apply for occupational disease compensation, including 22 (15.6%) following the consultation. In addition, a diagnosis different from the one proposed by the MDD was proposed for 18/141 (12.8%) patients. CONCLUSIONS In our study, we found a high prevalence of occupational respiratory exposure with a potential causal link in patients with ILD. We suggest that a systematic specialised consultation in occupational medicine could be beneficial in the ILD diagnostic approach.
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Affiliation(s)
- Ségolene Carlier
- grid.7849.20000 0001 2150 7757Université de Lyon, Université Claude Bernard Lyon 1, Université Gustave Eiffel-IFSTTAR, UMRESTTE, UMR T 9405, Domaine Rockefeller, 69373 Lyon Cedex 08, France ,grid.411430.30000 0001 0288 2594Hospices Civils de Lyon, CRPPE-Lyon, Centre Hospitalier Lyon Sud, 69495 Pierre Bénite, France
| | - Mouhamad Nasser
- National Reference Center for Rare Pulmonary Diseases, Hôpital Louis Pradel, Hospices Civils de Lyon, Université de Lyon, INRAE, Lyon, France
| | - Emmanuel Fort
- grid.7849.20000 0001 2150 7757Université de Lyon, Université Claude Bernard Lyon 1, Université Gustave Eiffel-IFSTTAR, UMRESTTE, UMR T 9405, Domaine Rockefeller, 69373 Lyon Cedex 08, France
| | - Céline Lamouroux
- grid.7849.20000 0001 2150 7757Université de Lyon, Université Claude Bernard Lyon 1, Université Gustave Eiffel-IFSTTAR, UMRESTTE, UMR T 9405, Domaine Rockefeller, 69373 Lyon Cedex 08, France ,grid.411430.30000 0001 0288 2594Hospices Civils de Lyon, CRPPE-Lyon, Centre Hospitalier Lyon Sud, 69495 Pierre Bénite, France
| | - Salim Si-Mohamed
- grid.413858.3Department of Cardiovascular and Thoracic Radiology, Hôpital Louis Pradel, Hospices Civils de Lyon, 59 Boulevard Pinel, 69500 Bron, France ,grid.15399.370000 0004 1765 5089UMR 5220, CREATIS, INSA Lyon, Université Claude Bernard, Lyon 1, Lyon, France
| | - Lara Chalabreysse
- grid.413858.3Département de Chirurgie Thoracique, Transplantation Pulmonaire et Cardio-Pulmonaire, Hôpital Louis Pradel, Hospices Civils de Lyon, Lyon, France ,CICLY LYON, Centre Pour L’innovation en Cancérologie de Lyon, Lyon, France
| | - Jean-Michel Maury
- grid.413852.90000 0001 2163 3825Service d’anatomie-Pathologique, Groupement Hospitalier Est, Hospices Civils de Lyon, Bron, France ,grid.25697.3f0000 0001 2172 4233UMR754, INRAE, Université Claude Bernard Lyon 1, Université de Lyon, Lyon, France
| | - Rémi Diesler
- National Reference Center for Rare Pulmonary Diseases, Hôpital Louis Pradel, Hospices Civils de Lyon, Université de Lyon, INRAE, Lyon, France
| | - Vincent Cottin
- National Reference Center for Rare Pulmonary Diseases, Hôpital Louis Pradel, Hospices Civils de Lyon, Université de Lyon, INRAE, Lyon, France
| | - Barbara Charbotel
- grid.7849.20000 0001 2150 7757Université de Lyon, Université Claude Bernard Lyon 1, Université Gustave Eiffel-IFSTTAR, UMRESTTE, UMR T 9405, Domaine Rockefeller, 69373 Lyon Cedex 08, France ,grid.411430.30000 0001 0288 2594Hospices Civils de Lyon, CRPPE-Lyon, Centre Hospitalier Lyon Sud, 69495 Pierre Bénite, France
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Coureau E, Fontana L, Lamouroux C, Pélissier C, Charbotel B. Is Isocyanate Exposure and Occupational Asthma Still a Major Occupational Health Concern? Systematic Literature Review. Int J Environ Res Public Health 2021; 18:ijerph182413181. [PMID: 34948791 PMCID: PMC8706635 DOI: 10.3390/ijerph182413181] [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] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 12/06/2021] [Accepted: 12/10/2021] [Indexed: 11/16/2022]
Abstract
Isocyanate, whose disease-inducing mechanism is poorly understood, with poor prognosis, is widely used. Asthma is the most frequent manifestation of prolonged exposure. We assessed the evolution of the incidence of isocyanate-induced occupational asthma over time. PubMed and Cochrane databases were systematically searched for studies published since 1990 that assessed the relationship between occupational exposure to isocyanates and asthma. We identified 39 studies: five retrospective cohort studies, seven prospective cohort studies, three of which were inception cohorts), seven observational cross-sectional studies, five literature reviews, two case series, and 13 registry studies. The incidence of occupational asthma secondary to isocyanate exposure has decreased from more than 5% in the early 1990s to 0.9% in 2017 in the United States. Despite the wide use of optimal collective and individual protection measures, the risk of occupational asthma has stabilized. Occupational asthma risk can be assessed with good sensitivity using self-questionnaires and pulmonary function tests. Occupational avoidance should be implemented as soon as possible after the first symptoms appear because the prognosis becomes increasingly poor with the persistence of exposure. It is now necessary to study specifically cutaneous sensitization to isocyanates and to define what protective equipment is effective against this mode of exposure.
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Affiliation(s)
- Elie Coureau
- UMRESTTE, UMR T 9405, Université Lyon 1, Université Gustave Eiffel—IFSTTAR, Domaine Rockefeller, 8 Avenue Rockefeller, 69008 Lyon, France; (E.C.); (C.L.)
- CRPPE-Lyon, Centre Régional de Pathologies Professionnelles et Environnementales de Lyon, Centre Hospitalier Lyon Sud, Hospices Civils de Lyon, 69495 Pierre Bénite, France
| | - Luc Fontana
- Hospital University Center of Saint-Etienne, Université Lyon 1, Université de St Etienne, IFSTTAR, UMRESTTE, UMR T 9405, 42005 Saint-Etienne, France; (L.F.); (C.P.)
- Service de Santé au Travail, Centre Hospitalier Universitaire de Saint-Etienne, 42005 Saint-Etienne, France
| | - Céline Lamouroux
- UMRESTTE, UMR T 9405, Université Lyon 1, Université Gustave Eiffel—IFSTTAR, Domaine Rockefeller, 8 Avenue Rockefeller, 69008 Lyon, France; (E.C.); (C.L.)
- CRPPE-Lyon, Centre Régional de Pathologies Professionnelles et Environnementales de Lyon, Centre Hospitalier Lyon Sud, Hospices Civils de Lyon, 69495 Pierre Bénite, France
| | - Carole Pélissier
- Hospital University Center of Saint-Etienne, Université Lyon 1, Université de St Etienne, IFSTTAR, UMRESTTE, UMR T 9405, 42005 Saint-Etienne, France; (L.F.); (C.P.)
- Service de Santé au Travail, Centre Hospitalier Universitaire de Saint-Etienne, 42005 Saint-Etienne, France
| | - Barbara Charbotel
- UMRESTTE, UMR T 9405, Université Lyon 1, Université Gustave Eiffel—IFSTTAR, Domaine Rockefeller, 8 Avenue Rockefeller, 69008 Lyon, France; (E.C.); (C.L.)
- CRPPE-Lyon, Centre Régional de Pathologies Professionnelles et Environnementales de Lyon, Centre Hospitalier Lyon Sud, Hospices Civils de Lyon, 69495 Pierre Bénite, France
- Correspondence: ; Tel.: +33-4-78-77-28-09
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Jankowski CK, Pelletier A, Díaz E, R. Belanger JM, J. Paré J, Lamouroux C, Boivin J. Reactions of Vinylcyclopropane and Bicyclopropyl Compounds With Maleic Anhydride. J MEX CHEM SOC 2019. [DOI: 10.29356/jmcs.v53i4.974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Vinylcyclopropane and bicyclopropyl C6 compounds are studied as diene precursors in the Diels-Alder reaction. Their rearrangement under different thermal and microwave conditions leads to specific isomeric hexa-, penta- or butadienes, condensed with maleic anhydride as a dienophile. Adduct stereochemistries were compared to those of previously-synthesized model compounds, and are fully characterized with 2D NMR and GC-MS spectroscopies. Some unsaturated terpenes bearing vinylcyclopropane moieties were also condensed, and their adduct structures assigned.
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Crambert G, Genna A, Lamouroux C. La H, K-ATPase de type 2 : une cible thérapeutique potentielle pour lutter contre l’hyperkaliémie au cours de l’insuffisance rénale terminale ? Nephrol Ther 2018. [DOI: 10.1016/j.nephro.2018.07.363] [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: 11/25/2022]
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Lamouroux C, Tanfous MB, Igoudjil K, Salhi A, Escher G, Crambert G. La H, K-ATPase de type 2 contribue à l’hypertension sensible au sel induite par un régime pauvre en potassium. Nephrol Ther 2015. [DOI: 10.1016/j.nephro.2015.07.232] [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: 11/28/2022]
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Pasquier S, Vercouter T, Taran F, Lamouroux C, Plancque G, Berthet JC. A screening method of uranyl extractants in H2SO4 solutions. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2014.11.068] [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] [Indexed: 10/24/2022]
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Rivier C, Roudil D, Rigaux C, Camès B, Adnet J, Eysseric C, Tufféry B, Ruas A, Lamouroux C, Casanova F, Organista M, Pochon P. Validation of analytical methods for nuclear spent fuel reprocessing. Progress in Nuclear Energy 2014. [DOI: 10.1016/j.pnucene.2013.07.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Lamouroux C, Foglia G, Le Rouzo G. How to separate ionic liquids: Use of Hydrophilic Interaction Liquid Chromatography and mixed mode phases. J Chromatogr A 2011; 1218:3022-8. [DOI: 10.1016/j.chroma.2011.03.053] [Citation(s) in RCA: 21] [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: 12/19/2010] [Revised: 03/22/2011] [Accepted: 03/23/2011] [Indexed: 10/18/2022]
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Le Rouzo G, Lamouroux C, Dauvois V, Dannoux A, Legand S, Durand D, Moisy P, Moutiers G. Anion effect on radiochemical stability of room-temperature ionic liquids under gamma irradiation. Dalton Trans 2009:6175-84. [DOI: 10.1039/b903005k] [Citation(s) in RCA: 80] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Bresson C, Bion L, Moulin C, Lamouroux C. Preliminary speciation study of Co(II)-citrate system by ion pairing-reversed phase chromatography coupled to UV detector. RADIOCHIM ACTA 2007. [DOI: 10.1524/ract.2005.93.11.675] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
SummaryThis paper describes the ability of ion pairing-reversed phase chromatography coupled to UV detector to determine an experimental speciation of cobalt in the binary Co(II)-citrate system. A method has been developed to investigate aqueous Co(II)-citrate samples at physiological pH as a function of time, by varying metal-to-ligand ratios, concentration and temperature. Solid 1:1 dimeric and 1:2 monomeric Co(II)-citrate complexes previously described have been synthesised and their analysis by IP-RPC-UV allowed the assignation of the solution state separated species. In solution state and at Co(II) concentration of 5×10-2M, 1:2 Co(II)-citrate monomeric species are predominant forms, while 1:1 mono and dimeric complexes are the minor species. At Co(II) concentration lower than 5 mM, only species of 1:1 stoichiometry are involved in the aqueous cobalt distribution. The monitoring of the formed species as a function of time allows highlighting the high inertness of this system. At low concentration ranges, electrospray ionisation-mass spectrometry experiments were carried out to support the chromatographic data. This study is the first one establishing a link among synthetic cobalt-citrate complexes and species existing in solution.
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Bresson C, Lamouroux C, Sandre C, Tabarant M, Gault N, Poncy JL, Lefaix JL, Den Auwer C, Spezia R, Gaigeot MP, Ansoborlo E, Mounicou S, Fraysse A, Deves G, Bacquart T, Seznec H, Pouthier T, Moretto P, Ortega R, Lobinski R, Moulin C. An interdisciplinary approach to investigate the impact of cobalt in a human keratinocyte cell line. Biochimie 2006; 88:1619-29. [PMID: 17007991 DOI: 10.1016/j.biochi.2006.09.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2006] [Accepted: 09/04/2006] [Indexed: 11/15/2022]
Abstract
Since in nuclear power plants, risks of skin contact contamination by radiocobalt are significant, we focused on the impact of cobalt on a human cutaneous cell line, i.e. HaCaT keratinocytes. The present paper reports an interdisciplinary approach aimed at clarifying the biochemical mechanisms of metabolism and toxicity of cobalt in HaCaT cells. Firstly, a brief overview of the used instrumental techniques is reported. The following parts present description and discussion of results concerning: (i) toxicological studies concerning cobalt impact towards HaCaT cells (ii) structural and speciation fundamental studies of cobalt-bioligand systems, through X-ray absorption spectroscopy (XAS), ab initio and thermodynamic modelling (iii) preliminary results regarding intracellular cobalt speciation in HaCaT cells using size exclusion chromatography/inductively coupled plasma-atomic emission spectroscopy (SEC/ICP-AES) and direct in situ analysis by ion beam micropobe analytical techniques.
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Affiliation(s)
- C Bresson
- DEN/DANS/DPC/SECR/LSRM, CEA Saclay, Batiment 391, 91191 Gif-sur-Yvette, France
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Lamouroux C, Rateau S, Moulin C. Use of electrospray ionization mass spectrometry for the study of Ln(III) complexation and extraction speciation with calixarene-CMPO in the fuel partitioning concept. Rapid Commun Mass Spectrom 2006; 20:2041-52. [PMID: 16755616 DOI: 10.1002/rcm.2540] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
The calixarene-bearing CMPO groups belong to a family of extracting agents recently developed for nuclear reprocessing. These molecules exhibit specific properties to separate actinides(III) from lanthanides(III) in nitric acid solution. Speciation of two distinct calixarene-CMPO (carbamoyl phosphine oxide), substituted either in the wide rim or in the narrow rim with lanthanides (La, Eu, Yb), was undertaken. The complexation behaviour in single phase or in liquid-liquid extraction was examined with two different electrospray spectrometer source geometries. The stoichiometries of the different complexes were reported and the selectivity of these calixarenes towards lanthanides was determined. The results obtained were concordant for the two spectrometers and confirm that electrospray mass spectrometry is a useful tool to study non-covalently bonded complexes.
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Affiliation(s)
- C Lamouroux
- CEA Saclay DEN/DPC/SECR/Laboratoire de Spéciation des Radionucléides et des Molécules, Bât 391, 91191 Gif sur Yvette, France.
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Bresson C, Esnouf S, Lamouroux C, Solari PL, Den Auwer C. XAS Investigation of biorelevant cobalt complexes in aqueous media. NEW J CHEM 2006. [DOI: 10.1039/b514454j] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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18
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Jankowski CK, Van Calsteren MR, Aychet N, Dozol JF, Moulin C, Lamouroux C. Study of the nitration of di-n-octylcrown-6 calix[4]arene using LCMS, NMR, and molecular modelling. CAN J CHEM 2005. [DOI: 10.1139/v05-126] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The selective HNO3 nitration of di-n-octylcrown-6 calix[4]arene using different conditions, studied with LCMS and NMR (1H and 13C) spectroscopic techniques, lead to the identification of most of the expected nitro derivative isomeric compounds. The formation of these isomers under acidic and radiolytic conditions is discussed with the help of molecular modelling.Key words: calix crown compounds, nitration of calixarenes, NMR of isomeric nitrocalixarenes, LC-ESI-MS.
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Belair S, Lamouroux C, Tabarant M, Labet A, Mariet C, Dannus P. Modeling of the Extraction of Lanthanide Nitrates from Aqueous Solutions Over a Wide Range of Activities by CMPO. Solvent Extraction and Ion Exchange 2004. [DOI: 10.1081/sei-200035602] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Lamouroux C, Aychet N, Lelièvre A, Jankowski CK, Moulin C. High-performance liquid chromatography with electrospray ionisation mass spectrometry and diode array detection in the identification and quantification of the degradation products of calix[4]arene crown-6 under radiolysis. Rapid Commun Mass Spectrom 2004; 18:1493-1503. [PMID: 15216512 DOI: 10.1002/rcm.1513] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The extraction of 135Cs from high-activity liquid waste, arising from reprocessing of spent nuclear fuel, can be achieved by using calix[4]arene crown-6 compounds. The radiolytic degradation of di(n-octyloxy)calix[4]arene crown-6 (octMC6), in aliphatic or aromatic solvent in contact with 3 M nitric acid, was studied by high-performance liquid chromatography directly coupled to electrospray ionisation mass spectrometry (LC/ESI-MS). More than 50 distinct degradation products were observed, and about 30 of these were identified. These compounds can be assigned to three categories, namely, products of reactions involving radical cleavage or addition, of oxidation reactions, or of aromatic substitution reactions. The major product, corresponding to substitution by an NO2 group, was quantified by external standard calibration using a purified synthetic sample. Despite the observation of all these degradation compounds, octMC6 appears to be remarkably stable under these drastic conditions, combining hydrolysis (HNO(3) 3 M) and an extreme exposure to radiolysis (10(6) Gy). Less than 35% degradation of octMC6 was observed in aromatic solvent under these conditions.
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Affiliation(s)
- C Lamouroux
- CEA Saclay DEN/DPC/SECR/ Laboratoire de Spéciation des Radionucléides et des Molécules, Bât 391, 91191 Gif sur Yvette, France.
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Jankowski CK, Allain F, Dozol JF, Virelizier H, Tabet JC, Moulin C, Lamouroux C. Preliminary study of the stability of calix[4]arene crown compounds under radiolysis. Rapid Commun Mass Spectrom 2003; 17:1247-1255. [PMID: 12811747 DOI: 10.1002/rcm.1047] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The extraction of (135)Cs from high activity waste arising from reprocessing of spent fuel can be achieved by using calix[4]arene crown compounds. The radiolytic degradation of calix[4]arene crowns as well as their solvent, o-nitrophenyloctyl ether (NPOE), was studied using electrospray ionization mass spectrometry (ESI-MS) (that formed Cs(+) or Na(+) adducts) in nitric acid, as well as by chemical ionization tandem mass spectrometry (MS/MS) experiments. The structures of major degradation products were identified with MS and specifically labelled nitric acid. Although NPOE and calix[4]arene crowns alone are relatively stable, under simulated conditions resembling the real industrial processes involving radiolysis in the presence of nitric acid, several products resulting from nitration and oxidation were observed.
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Affiliation(s)
- C K Jankowski
- Université de Moncton, Moncton, Canada
- CEA, DEN Saclay/DPC/SCPA/LAS2O, France
| | - F Allain
- CEA, DEN Saclay/DPC/SCPA/LAS2O, France
| | - J F Dozol
- CEA, DEN Cadarache/DED/SEP/LCD, France
| | | | - J C Tabet
- LCSOB, URA 7613, Université P. et M. Curie, 76252, Paris, France
| | - C Moulin
- CEA, DEN Saclay/DPC/SCPA/LAS2O, France
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Lamouroux C, Virelizier H, Moulin C, Jankowski CK. Application of gas chromatography-tandem mass spectrometry to the analysis of inhibition of dimerisation of tributylphosphate under radiolysis. Identification of isomeric tributylphosphate-alkylbenzene inhibitor coupling products. J Chromatogr A 2001; 917:261-75. [PMID: 11403478 DOI: 10.1016/s0021-9673(01)00674-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Tributylphosphate (TBP), solvent used as extractant for reprocessing spent nuclear fuel, can dimerise under radiolysis. This occurs by radical radical recombination, leading to 10 isomeric dimers (TBP-TBP). These species are complexation agents and are responsible of fission product retention in the organic phase that increases the solvent degradation. In order to limit their formation two free radical inhibitors (In), isopropyl and 1,4-diisopropylbenzenes, were used. These additives reduce by about 50% the concentration of TBP-TBP dimers but this reduction is not strictly followed by TBP regeneration as mixed coupling products from TBP and inhibitor are detected. By using GC-MS-MS and selectively deuterated compounds, the identification of these different isomers (TBP-In) has been realised. From these identifications and from the analysis of the proportion of the different isomers, the major primary TBP radical generated under radiolysis was determined.
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Affiliation(s)
- C Lamouroux
- DCC/DPE/SPCP/Laboratoire d'Analyse et Synthèse Organique, CEA Saclay, Gif sur Yvette, France.
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Abstract
Possible recognition of peptide derivatives by hepatic cytochrome P450 3A has been suggested by binding and metabolism of numerous pseudopeptidic compounds such as ergot derivatives and cyclosporin. Natural linear or cyclic dipeptides containing hydrophobic amino acids produced by microorganisms and present in mammals are able to interact with the P450 active site through either iron-amine interactions (Type II) or hydrophobic Type I interactions. P450 3A from dexamethasone-treated rats or yeast-expressed P450 human 3A4 are the most potent in such interactions, which are particularly strong with peptides containing a histidyl residue. Some cyclodipeptides are rapidly transformed by rat cytochrome P450 3A to mono- or dihydroxylated metabolites, with turnovers around 3 nmoles min(-1) P450(-1). Linear peptides are poorly transformed in these conditions. This metabolism of cyclodipeptides occurs in 8 species including man. Such interactions and metabolism have only minor consequences in terms of P450 3A binding and metabolism of classical P450 3A substrates. These data reinforce the concept that, in addition to their effect on the regulation of P450 neosynthesis, naturally occurring endogenous peptides are also substrates of P450 3A. The physiological activities of these peptides may be modulated by their metabolism.
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Affiliation(s)
- M Delaforge
- C.E.A. Saclay, DSV/DRM/SPI, 91191, Gif sur Yvette Cedex, France.
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Lamouroux C, Moulin C, Tabet JC, Jankowski CK. Characterization of zirconium complexes of interest in spent nuclear fuel reprocessing by electrospray ionization mass spectrometry. Rapid Commun Mass Spectrom 2000; 14:1869-1877. [PMID: 11006598 DOI: 10.1002/1097-0231(20001015)14:19<1869::aid-rcm108>3.0.co;2-p] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Liquid-liquid extraction of zirconium, one of the most important fission products, was followed using electrospray ionization mass spectrometry under conditions simulating reprocessing of nuclear spent fuel. Zr(IV) can precipitate from the organic phase after extraction by dibutylphosphoric acid (HDBP), the most common degradation product of tributylphosphate (TBP) radiolysis. Different complexes were detected with electrospray used in positive or negative ion modes, according to the extraction conditions such as the ligand/metal ratio. Stoichiometry of the Zr(IV) complexes was determined by combining isotopic labeling [H(15)NO(3)] of the aqueous phase in the extraction system and tandem mass spectrometry experiments. These results were compared with the species observed using other techniques reported in the literature. The mechanisms of ionization/desorption of these complexes are proposed depending on the organic ligand character (neutral (L) such as TBP, or acidic (HL') such as HDBP), and the ionization mode used. Copyright 2000 John Wiley & Sons, Ltd.
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Affiliation(s)
- C Lamouroux
- DCC/DPE/SPCP/Laboratoire d'Analyse et Synthese Organique, CEA Saclay, BP2, 91191 Gif sur Yvette, France
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