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Paradis C, Courtois A, Vaucel JA, Blanc-Brisset I, Record C, Grenet G, Gomes E, Nardon A, Louviaux N, Labadie M. Acute Thyroid Hormone Exposure in Children: A National Retrospective Study Using Health Data Routinely Collected by the French Poison Control Centers. Indian J Pediatr 2024:10.1007/s12098-024-05114-0. [PMID: 38573450 DOI: 10.1007/s12098-024-05114-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/25/2023] [Accepted: 03/18/2024] [Indexed: 04/05/2024]
Affiliation(s)
- Camille Paradis
- Nouvelle Aquitaine Poison Control Center, University Hospital Center of Bordeaux, Bordeaux, France
| | - Arnaud Courtois
- Nouvelle Aquitaine Poison Control Center, University Hospital Center of Bordeaux, Bordeaux, France.
- Oenology Research Unit 1366, INRAE, Villenave d'Ornon, France.
| | - Jules-Antoine Vaucel
- Nouvelle Aquitaine Poison Control Center, University Hospital Center of Bordeaux, Bordeaux, France
| | - Ingrid Blanc-Brisset
- Nouvelle Aquitaine Poison Control Center, University Hospital Center of Bordeaux, Bordeaux, France
| | - Cécile Record
- Nouvelle Aquitaine Poison Control Center, University Hospital Center of Bordeaux, Bordeaux, France
| | - Guillaume Grenet
- Auvergne Rhône Alpes Poison Control Center, Pharmacotoxicology Hospital Unit, Civil Hospices of Lyon, Lyon, France
| | - Elisabete Gomes
- East Poison Control Center, University Hospital Center of Nancy, Nancy, France
| | - Audrey Nardon
- Nouvelle Aquitaine Poison Control Center, University Hospital Center of Bordeaux, Bordeaux, France
| | - Natacha Louviaux
- Nouvelle Aquitaine Poison Control Center, University Hospital Center of Bordeaux, Bordeaux, France
| | - Magali Labadie
- Nouvelle Aquitaine Poison Control Center, University Hospital Center of Bordeaux, Bordeaux, France
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Vignault A, Vaysse C, Bertand K, Krisa S, Courtois A, Moras B, Richard T, Gaudout D, Pourtau L. Characterization of Crocetin Isomers in Serum Samples via UHPLC-DAD-MS/MS and NMR after Saffron Extract (Safr'Inside™) Consumption. Metabolites 2024; 14:190. [PMID: 38668318 PMCID: PMC11052503 DOI: 10.3390/metabo14040190] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 03/24/2024] [Accepted: 03/26/2024] [Indexed: 04/28/2024] Open
Abstract
The therapeutic effects of saffron have been reported and described in relation to its major derivatives. Among them, in terms of saffron's properties, crocin and crocetin absorption and bioavailability have been the most studied. Nevertheless, the metabolism of these major compounds of saffron has not yet been entirely elucidated. Current data indicate that the phase 2 metabolism of crocetins go through conjugation reactions. Crocetins could also be present in isomeric forms such as other carotenoids. Nonetheless, there are still shadow areas in regard to the measurements of the different circulating forms of crocetins after oral saffron extract administration (Safr'Inside™). In using various approaches, we propose the identification of a new cis isomeric form of crocetin, the 6-cis-crocetin. This compound was found in human serum samples after an oral administration of saffron extract. The 6-cis-crocetin represents 19% of the total crocetin measured after 45 min of consumption. These data mark, for the first time, the presence of a cis isomeric form of crocetin in human serum samples. Moreover, this study led to the development of an analytical method that is able to identify and quantify both isomeric forms (trans and cis).
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Affiliation(s)
- Adeline Vignault
- Activ’Inside, 33750 Beychac et Caillau, France; (B.M.); (D.G.); (L.P.)
| | - Carole Vaysse
- Nutrition-Health & Lipid Biochemistry Department, ITERG, 33610 Canejan, France; (C.V.); (K.B.)
| | - Karène Bertand
- Nutrition-Health & Lipid Biochemistry Department, ITERG, 33610 Canejan, France; (C.V.); (K.B.)
| | - Stéphanie Krisa
- Bordeaux INP, INRAE, OENO, UMR 1366, ISVV, University of Bordeaux, 33140 Villenave d’Ornon, France; (S.K.); (A.C.); (T.R.)
| | - Arnaud Courtois
- Bordeaux INP, INRAE, OENO, UMR 1366, ISVV, University of Bordeaux, 33140 Villenave d’Ornon, France; (S.K.); (A.C.); (T.R.)
| | - Benjamin Moras
- Activ’Inside, 33750 Beychac et Caillau, France; (B.M.); (D.G.); (L.P.)
| | - Tristan Richard
- Bordeaux INP, INRAE, OENO, UMR 1366, ISVV, University of Bordeaux, 33140 Villenave d’Ornon, France; (S.K.); (A.C.); (T.R.)
| | - David Gaudout
- Activ’Inside, 33750 Beychac et Caillau, France; (B.M.); (D.G.); (L.P.)
| | - Line Pourtau
- Activ’Inside, 33750 Beychac et Caillau, France; (B.M.); (D.G.); (L.P.)
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Deliège M, Bastens B, Matus G, Blétard N, Houbiers G, Courtois A, Focan C. Stauffer syndrome : a rare paraneoplastic complication of renal cell carcinoma to be kept in mind. Case report and literature survey. Acta Gastroenterol Belg 2024; 87:40-43. [PMID: 38431790 DOI: 10.51821/87.1.11402] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/05/2024]
Abstract
The authors report the case of a 74-years-old woman treated by immunotherapy for a metastatic renal cell carcinoma and having developed an important cholestasis with thrombocytosis, increased CRP, leucocytosis and hypoalbuminemia. Liver remained free of metastases at medical imaging. The diagnosis of a Stauffer syndrome was confirmed by the hepatic biopsy. A complete response of liver disorders was obtained after nephrectomy. From literature survey, Stauffer syndrome should be kept in mind in cancer patients, especially those suffering from a renal cell carcinoma, presenting with cholestasis with no underlying cause.
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Affiliation(s)
- M Deliège
- Gastroenterology department, Clinique CHC MontLegia, Liège, Belgium
| | - B Bastens
- Gastroenterology department, Clinique CHC MontLegia, Liège, Belgium
| | - G Matus
- Onco-hematology department, Clinique CHC-MontLegia, Liège, Belgium
| | - N Blétard
- Anatomo-pathology department, Clinique CHC-MontLegia, Liège, Belgium
| | - G Houbiers
- Gastroenterology department, Clinique CHC MontLegia, Liège, Belgium
- Onco-hematology department, Clinique CHC-MontLegia, Liège, Belgium
| | - A Courtois
- Onco-hematology department, Clinique CHC-MontLegia, Liège, Belgium
| | - C Focan
- Onco-hematology department, Clinique CHC-MontLegia, Liège, Belgium
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Sy B, Krisa S, Richard T, Courtois A. Resveratrol, ε-Viniferin, and Vitisin B from Vine: Comparison of Their In Vitro Antioxidant Activities and Study of Their Interactions. Molecules 2023; 28:7521. [PMID: 38005243 PMCID: PMC10672907 DOI: 10.3390/molecules28227521] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 11/03/2023] [Accepted: 11/08/2023] [Indexed: 11/26/2023] Open
Abstract
The control of oxidative stress with natural active substances could limit the development of numerous pathologies. Our objective was to study the antiradical effects of resveratrol (RSV), ε-viniferin (VNF), and vitisin B (VB) alone or in combination, and those of a standardized stilbene-enriched vine extract (SSVE). In the DPPH-, FRAP-, and NO-scavenging assays, RSV presented the highest activity with an IC50 of 81.92 ± 9.17, 13.36 ± 0.91, and 200.68 ± 15.40 µM, respectively. All binary combinations resulted in additive interactions in the DPPH- and NO-scavenging assays. In the FRAP assay, a synergic interaction for RSV + VNF, an additive for VNF + VB, and an antagonistic for RSV + VB were observed. The ternary combination of RSV + VNF + VB elicited an additive interaction in the DPPH assay and a synergic interaction in the FRAP- and NO-scavenging assays. There was no significant difference between the antioxidant activity of the SSVE and that of the combination of RSV + VNF. In conclusion, RSV presented the highest effects, followed by VNF and VB. The interactions revealed additive or synergistic effects, depending on the combination of the stilbenes and assay.
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Affiliation(s)
- Biranty Sy
- Université de Bordeaux, Institute of Vine and Wine Sciences, INRAE, Bordeaux INP, Bordeaux Sciences Agro, OENO, UMR 1366, ISVV, 33140 Villenave d’Ornon, France; (B.S.); (S.K.)
| | - Stéphanie Krisa
- Université de Bordeaux, Institute of Vine and Wine Sciences, INRAE, Bordeaux INP, Bordeaux Sciences Agro, OENO, UMR 1366, ISVV, 33140 Villenave d’Ornon, France; (B.S.); (S.K.)
| | - Tristan Richard
- Université de Bordeaux, Institute of Vine and Wine Sciences, INRAE, Bordeaux INP, Bordeaux Sciences Agro, OENO, UMR 1366, ISVV, 33140 Villenave d’Ornon, France; (B.S.); (S.K.)
| | - Arnaud Courtois
- Université de Bordeaux, Institute of Vine and Wine Sciences, INRAE, Bordeaux INP, Bordeaux Sciences Agro, OENO, UMR 1366, ISVV, 33140 Villenave d’Ornon, France; (B.S.); (S.K.)
- CHU de Bordeaux, Centre Antipoison de Nouvelle Aquitaine, Emergency Building, 33076 Bordeaux, France
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Vaucel JA, Recher M, Paradis C, Labadie M, Courtois A, Michaud L, Petyt C, Guimber D, Tournoud C, Enaud R, Nisse P. Severe post-pyloric injury after button battery ingestion: Systematic literature review and case report. Arch Pediatr 2023; 30:501-504. [PMID: 37394366 DOI: 10.1016/j.arcped.2023.05.007] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 02/04/2023] [Accepted: 05/21/2023] [Indexed: 07/04/2023]
Abstract
BACKGROUND The health and safety hazards related to button batteries (BB) have been extensively studied, highlighting that the presence of a button battery in the esophagus is a life-threatening emergency. However, complications related to bowel BB are poorly evaluated and not well known. The objective of this review of the literature was to describe severe cases of BB that have passed the pylorus. CASE REPORT This case, from the PilBouTox cohort, is the first report of small-bowel occlusion following ingestion of an LR44 BB (diameter: 11.4 mm) by a 7-month-old infant with a history of intestinal resections. In this case, the BB was ingested without a witness. The initial presentation mimicked acute gastroenteritis evolving into hypovolemic shock. An X-ray revealed a foreign body stuck in the small bowel causing an intestinal occlusion and local necrosis without perforation. The patient's history of intestinal stenosis and intestinal surgery were the contributing factor of impaction. SYSTEMATIC LITERATURE REVIEW The review was performed using the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) statement. The research was conducted on September 12, 2022 through five database and the U.S. Poison Control Center website. An additional 12 severe cases of intestinal or colonic injury after ingestion of a single BB were identified. Of these, 11 were related to small BBs (< 15 mm) that impacted Meckel's diverticulum and one was related to postoperative stenosis. CONCLUSION In view of the findings, the indications for digestive endoscopy for extraction of a BB in the stomach should include a history of intestinal stenosis or intestinal surgery so as to avoid delayed intestinal perforation or occlusion and prolonged hospitalization.
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Affiliation(s)
- Jules-Antoine Vaucel
- Centre Antipoison de Bordeaux (Bordeaux Poison Control Center), Bordeaux University Hospital, Bordeaux Cedex 33076, France.
| | - Morgan Recher
- Univ. Lille, CHU Lille, ULR 2694 - METRICS: Évaluation des technologies de santé et des pratiques médicales, F-59000 Lille, France
| | - Camille Paradis
- Centre Antipoison de Bordeaux (Bordeaux Poison Control Center), Bordeaux University Hospital, Bordeaux Cedex 33076, France
| | - Magali Labadie
- Centre Antipoison de Bordeaux (Bordeaux Poison Control Center), Bordeaux University Hospital, Bordeaux Cedex 33076, France
| | - Arnaud Courtois
- Centre Antipoison de Bordeaux (Bordeaux Poison Control Center), Bordeaux University Hospital, Bordeaux Cedex 33076, France
| | - Laurent Michaud
- Services des urgences pédiatriques (Pediatric Emergency care], Lille University Hospital, Lille 59000, France
| | - Caroline Petyt
- Service de chirurgie digestive (Department of Digestive Surgery), Lille University Hospital, Lille 59000, France
| | - Dominique Guimber
- Service de gastro-enterologie, hépatologie et nutrition pédiatrique (Department of Pediatric Gastroenterology, Hepatology and Nutrition), Lille University Hospital, Lille 59000, France
| | - Christine Tournoud
- Centre Antipoison de Nancy (Nancy Poison Control Center), Nancy University Hospital, Nancy 54000, France
| | - Raphael Enaud
- Service de gastro-enterologie, hépatologie et nutrition pédiatrique (Department of Pediatric Gastroenterology, Hepatology and Nutrition), Bordeaux University Hospital, Bordeaux Cedex 33076, France
| | - Patrick Nisse
- Centre Antipoison de Lille (Lille Poison Control Center), Lille University Hospital, Lille 59000, France
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Lecot J, Cellier M, Courtois A, Vodovar D, Le Roux G, Landreau A, Labadie M, Bruneau C, Descatha A. Cyclopeptide mushroom poisoning: A retrospective series of 204 patients. Basic Clin Pharmacol Toxicol 2023; 132:533-542. [PMID: 36908014 DOI: 10.1111/bcpt.13858] [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: 11/16/2022] [Revised: 01/26/2023] [Accepted: 03/08/2023] [Indexed: 03/14/2023]
Abstract
Cyclopeptide mushroom poisoning is responsible for 90%-95% of deaths from macrofungi ingestion. The main objectives of this study are to describe cases of cyclopeptide mushroom poisoning and to determine risk factors that may influence the severity/mortality of poisoned patients. We included all cases of amatoxin toxicity reported to two French Poison Centers from 2013 through 2019. We compared the severity with the Poison Severity Score (PSS) and the outcomes of patients using simple logistic regression and multinomial logistic regression. We included 204 cases of amatoxin toxicity. More than three-quarters developed an increase in AST and/or ALT (78.1%), and over half developed a decrease in prothrombin ratio (<70%: 53%) and/or Factor V (<70%: 54%). One-third developed an acute renal injury (AKI). Twelve patients (5.9%) developed post-poisoning sequelae (persistent kidney injury more than 1 month after ingestion and liver transplant). Five patients (2.5%) received a liver transplant, and nine died (4.4%). The mean time to onset of digestive disorders was shorter in PSS2 and PSS3-4 patients (10.9 ± 3.9/11.3 ± 6.3 h) than in PSS1 patients (14 ± 6.5 h; p < 0.05). Patients who died or developed post-poisoning sequelae had more frequent cardiovascular comorbidities compared with recovered patients (60.0% versus 29.5%; p < 0.01).
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Affiliation(s)
- Jérémy Lecot
- Poison Control Center, Angers University Hospital (CHU Angers), Angers, France
| | - Morgane Cellier
- Poison Control Center, Angers University Hospital (CHU Angers), Angers, France
| | - Arnaud Courtois
- Poison Control Center, Bordeaux University Hospital (CHU Bordeaux), Bordeaux, France
| | - Dominique Vodovar
- Poison Control Center, Fernand-Widal-Lariboisiere Hospital, APHP Federation of Toxicology, APHP, Paris, France
- UFR medicine, Paris University, Paris, 75010, France
- Faculty of Pharmacy, INSERM UMRS 1144, Paris, France
| | - Gaël Le Roux
- Poison Control Center, Angers University Hospital (CHU Angers), Angers, France
- University of Angers, CHU Angers, University of Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S1085, Angers, France
| | - Anne Landreau
- Faculty of Health, Angers University, Angers, France
- Univ Angers, Univ Brest, IRF, SFR ICAT, Angers, France
| | - Magali Labadie
- Poison Control Center, Bordeaux University Hospital (CHU Bordeaux), Bordeaux, France
| | - Chloé Bruneau
- Poison Control Center, Angers University Hospital (CHU Angers), Angers, France
| | - Alexis Descatha
- Poison Control Center, Angers University Hospital (CHU Angers), Angers, France
- University of Angers, CHU Angers, University of Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S1085, Angers, France
- Department of Occupational Medicine, Epidemiology and Prevention, Donald and Barbara Zucker School of Medicine, Hofstra/Northwell, Hempstead, New York, USA
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Labadie M, Vaucel JA, Courtois A, Nisse P, Legeay M, Medernach C, Patat AM, Von Fabeck K, Gallart JC, Tournoud C, Puskarczyk E. Button Battery Ingestion in Children (PilBouTox®): A Prospective Study Describing the Clinical Course and Identifying Factors Related to Esophageal Impaction or Severe Cases. Dysphagia 2023; 38:446-456. [PMID: 35841456 DOI: 10.1007/s00455-022-10485-7] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Accepted: 06/13/2022] [Indexed: 01/27/2023]
Abstract
In this study, we aimed to identify the factors related to esophageal impaction following button battery (BB) ingestion in children. PilBouTox, a prospective multicentric observational cohort study, was conducted from French Poison Control Centers between June 1, 2016 and May 31, 2018. Children (0-12 years old) with BB ingestion were included. After ingestion, patients were monitored for 21 days or more if they remained symptomatic (maximum 1 year). Causes of ingestion, clinical manifestations, medical management, and the outcomes were recorded. In total, 415 patients were included; among them, 35 had esophageal impaction and 14 had severe complications or died. Seven symptoms were closely related (relative risk (RR) > 30) to esophageal impaction: anorexia, drooling, dyspnea, fever, hemodynamic instability, pallor, and pain. Furthermore, BBs > 15 mm were related to esophageal impaction (RR = 19, CI95% [4.1; 88]). The absence of initial symptoms was a protective factor for esophageal impaction (RR = 0.013, CI95% [0.002; 0.1]). Nine symptoms were closely related (RR > 30) to major effects and death: dyspnea, cough, dysphagia, drooling, fever, hemodynamic instability, pain, pallor, and vomiting. Seven symptoms were related to esophageal impaction and their rapid recognition could help to ensure that the patient is taken to a health care facility. Nine factors were related to the major effects of BB ingestion. We recommended an X-ray as soon as possible to determine the position of the BB.Trial Registry: Clinical Trial ID: NCT03708250, https://clinicaltrials.gov/ct2/show/NCT03708250.
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Affiliation(s)
- Magali Labadie
- Centre Hospitalier et Universitaire de Bordeaux, Centre Antipoison Nouvelle Aquitaine [Nouvelle Aquitaine Poison Control Center], 1 Place Amélie Rabat Léon, 33000, Bordeaux, Aquitaine, France.
| | - Jules-Antoine Vaucel
- Centre Hospitalier et Universitaire de Bordeaux, Centre Antipoison Nouvelle Aquitaine [Nouvelle Aquitaine Poison Control Center], 1 Place Amélie Rabat Léon, 33000, Bordeaux, Aquitaine, France
| | - Arnaud Courtois
- Centre Hospitalier et Universitaire de Bordeaux, Centre Antipoison Nouvelle Aquitaine [Nouvelle Aquitaine Poison Control Center], 1 Place Amélie Rabat Léon, 33000, Bordeaux, Aquitaine, France
| | - Patrick Nisse
- Centre Antipoison [Lille Poison Control Center], Centre Hospitalier et Universitaire de Lille, 59000, Lille, France
| | - Marion Legeay
- Centre Antipoison [Angers Poison Control Center], Centre Hospitalier et Universitaire de Angers, 49000, Angers, Pays de la Loire, France
| | - Chantal Medernach
- Centre Antipoison de Paris [Paris Poison Control Center]-Fédération de Toxicologie, Groupe Hospitalier Lariboisière Fernand-Widal, 75000, Paris, Île-de-France, France
| | - Anne-Marie Patat
- Centre Antipoison [Lyon Poison Control Center], Centre Hospitalier et Universitaire de Lyon, 69000, Lyon, Auvergne-Rhône-Alpes, France
| | - Katharina Von Fabeck
- Centre Antipoison [Marseille Poison Control Center], Centre Hospitalier et Universitaire de Marseille, 13000, Marseille, France
| | - Jean-Christophe Gallart
- Centre Antipoison-SAMU 31 [Toulouse Poison Control Center], Centre Hospitalier et Universitaire de Toulouse, 31000, Toulouse, Midi-Pyrénées, France
| | | | - Christine Tournoud
- Centre Antipoison [East Poison Control Center], Centre Hospitalier et Universitaire de Nancy, 54000, Nancy, Lorraine, France
| | - Emmanuel Puskarczyk
- Centre Antipoison [East Poison Control Center], Centre Hospitalier et Universitaire de Nancy, 54000, Nancy, Lorraine, France
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Vaucel JA, Larréché S, Paradis C, Courtois A, Pujo JM, Elenga N, Résière D, Caré W, de Haro L, Gallart JC, Torrents R, Schmitt C, Chevalier J, Labadie M, Kallel H. French Scorpionism (Mainland and Oversea Territories): Narrative Review of Scorpion Species, Scorpion Venom, and Envenoming Management. Toxins (Basel) 2022; 14:toxins14100719. [PMID: 36287987 PMCID: PMC9611377 DOI: 10.3390/toxins14100719] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Revised: 10/15/2022] [Accepted: 10/19/2022] [Indexed: 11/05/2022] Open
Abstract
Sixty-seven scorpion species have been described in France and its territories, where they have been found to be heterogeneously distributed. Indeed, only one species can be found on Réunion Island, while 38 species exist in French Guiana. The number of stings is also heterogenous, with up to 90 stings per 100,000 inhabitants occurring annually. Scorpion species can frequently be determined through simple visual factors, including species of medical importance (i.e., Buthus, Centruroides and Tityus). Scorpion venom is composed of local enzymes and peptides with a cysteine-stabilized α/β motif (NaTxs, Ktxs, Calcines), which allow for venom diffusion and the prey's incapacitation, respectively. Harmful scorpion species are limited to Centruroides pococki in the French West Indies, which can induce severe envenoming, and the Tityus obscurus and Tityus silvestris in French Guiana, which can cause fatalities in children and can induce severe envenoming, respectively. Envenomation by one of these scorpions requires hospital monitoring as long as systemic symptoms persist. Typical management includes the use of a lidocaine patch, pain killers, and local antiseptic. In the case of heart failure, the use of dobutamine can improve survival, and pregnant women must consult an obstetrician because of the elevated risk of preterm birth or stillbirth. France does not have scorpion antivenom, as scorpion stings are generally not fatal.
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Affiliation(s)
- Jules-Antoine Vaucel
- Bordeaux Poison Control Centre, Centre Hospitalier et Universitaire Bordeaux Pellegrin, 33000 Bordeaux, France
- Correspondence: ; Tel.: +33-05-5679-8776
| | - Sébastien Larréché
- Medical Biology Department, Hôpital d’Instruction Des Armées Bégin, 94160 Saint-Mandé, France
- Institut National de la Santé et de la Recherche Médicale (INSERM) UMR-S 1144, Université de Paris, 75000 Paris, France
| | - Camille Paradis
- Bordeaux Poison Control Centre, Centre Hospitalier et Universitaire Bordeaux Pellegrin, 33000 Bordeaux, France
| | - Arnaud Courtois
- Bordeaux Poison Control Centre, Centre Hospitalier et Universitaire Bordeaux Pellegrin, 33000 Bordeaux, France
| | - Jean-Marc Pujo
- Emergency Department, Centre Hospitalier de Cayenne, 97300 Cayenne, France
| | - Narcisse Elenga
- Pediatric Unit, Centre Hospitalier de Cayenne, 97300 Cayenne, France
| | - Dabor Résière
- Intensive Care Unit, Centre Hospitalier et Universitaire Martinique, 97200 Fort de France, France
| | - Weniko Caré
- Institut National de la Santé et de la Recherche Médicale (INSERM) UMR-S 1144, Université de Paris, 75000 Paris, France
- Paris Poison Control Center, Fédération de Toxicologie (FeTox), Hôpital Fernand Widal, AP-HP, 75000 Paris, France
- Internal Medicine Department, Hôpital d’Instruction des Armées Bégin, 94160 Val-de-Marne, France
| | - Luc de Haro
- Marseille Poison Control Centre, Assistance Public des Hôpitaux de Marseille, 13000 Marseille, France
| | - Jean-Christophe Gallart
- Toulouse Poison Control Centre, Centre Hospitalier et Universitaire de Toulouse, 31000 Toulouse, France
| | - Romain Torrents
- Marseille Poison Control Centre, Assistance Public des Hôpitaux de Marseille, 13000 Marseille, France
| | - Corinne Schmitt
- Marseille Poison Control Centre, Assistance Public des Hôpitaux de Marseille, 13000 Marseille, France
| | | | - Magali Labadie
- Bordeaux Poison Control Centre, Centre Hospitalier et Universitaire Bordeaux Pellegrin, 33000 Bordeaux, France
| | - Hatem Kallel
- Intensive Care Unit, Centre Hospitalier de Cayenne, 97300 Cayenne, France
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Hornedo-Ortega R, Jourdes M, Da Costa G, Courtois A, Gabaston J, Teissedre PL, Richard T, Krisa S. Oxyresveratrol and Gnetol Glucuronide Metabolites: Chemical Production, Structural Identification, Metabolism by Human and Rat Liver Fractions, and In Vitro Anti-inflammatory Properties. J Agric Food Chem 2022; 70:13082-13092. [PMID: 35195403 PMCID: PMC9585577 DOI: 10.1021/acs.jafc.1c07831] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Stilbene metabolites are attracting great interest because many of them exhibit similar or even stronger biological effects than their parent compounds. Furthermore, the metabolized forms are predominant in biological fluids; therefore, their study is highly relevant. After hemisynthesis production, isolation, and structural elucidation, three glucuronide metabolites for oxyresveratrol (ORV) were formed: trans-ORV-4'-O-glucuronide, trans-ORV-3-O-glucuronide, and trans-ORV-2'-O-glucuronide. In addition, two glucuronide metabolites were obtained for gnetol (GN): trans-GN-2'-O-glucuronide and trans-GN-3-O-glucuronide. When the metabolism of ORV and GN is studied in vitro by human and rat hepatic enzymes, four of the five hemisynthesized compounds were identified and quantified. Human enzymes glucuronidated preferably at the C-2' position, whereas rat enzymes do so at the C-3 position. In view of these kinetic findings, rat enzymes have a stronger metabolic capacity than human enzymes. Finally, ORV, GN, and their glucuronide metabolites (mainly at the C-3 position) decreased nitric oxide, reactive oxygen species, interleukin 1β, and tumor necrosis factor α production in lipopolysaccharide-stimulated macrophages.
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Adamski C, Vaucel JA, Paradis C, Brunet C, Nardon A, Courtois A, Castaing N, Labadie M. Une bonne blague pour Pâques ? Intoxication familiale avec du chocolat adultéré. Toxicologie Analytique et Clinique 2022. [DOI: 10.1016/j.toxac.2022.05.002] [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: 11/29/2022]
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Beaumont P, Courtois A, Atgié C, Richard T, Krisa S. Correction to: In the shadow of resveratrol: biological activities of epsilon-viniferin. J Physiol Biochem 2022; 78:933. [PMID: 35689763 DOI: 10.1007/s13105-022-00896-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Pauline Beaumont
- Université de Bordeaux, UR OEnologie, MIB, EA 4577, USC 1366 INRAE, 33882, Villenave d'Ornon, France.,Bordeaux INP, UR OEnologie, MIB, EA 4577, USC 1366 INRAE, 33882, Villenave d'Ornon, France
| | - Arnaud Courtois
- Université de Bordeaux, UR OEnologie, MIB, EA 4577, USC 1366 INRAE, 33882, Villenave d'Ornon, France.,Bordeaux INP, UR OEnologie, MIB, EA 4577, USC 1366 INRAE, 33882, Villenave d'Ornon, France.,Centre Antipoison et de Toxicovigilance de Nouvelle Aquitaine, Bâtiment UNDR, CHU de Bordeaux, 33076, Bordeaux, France
| | - Claude Atgié
- Université de Bordeaux, CBMN, UMR 5248, 33600, Pessac, France.,Bordeaux INP, CBMN, UMR 5248, 33600, Pessac, France
| | - Tristan Richard
- Université de Bordeaux, UR OEnologie, MIB, EA 4577, USC 1366 INRAE, 33882, Villenave d'Ornon, France.,Bordeaux INP, UR OEnologie, MIB, EA 4577, USC 1366 INRAE, 33882, Villenave d'Ornon, France
| | - Stéphanie Krisa
- Université de Bordeaux, UR OEnologie, MIB, EA 4577, USC 1366 INRAE, 33882, Villenave d'Ornon, France. .,Bordeaux INP, UR OEnologie, MIB, EA 4577, USC 1366 INRAE, 33882, Villenave d'Ornon, France.
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Vaucel JA, Enaud N, Paradis C, Bragança C, Courtois A, Lan M, Gil-Jardine C, Enaud R, Labadie M, Deguigne M, Roux GL, Descatha A, Azzouz R, Nisse P, Patat AM, Paret N, Blanc-Brisset I, Nardon A, Haro LD, Simon N, Delcourt N, Pelissier F, Tournoud C, Puskarczyk E, Langrand J, Laborde-Casterot H, Care W, Vodovar D. Poison control centres and alternative forms of communication: comparison of response rates between text message and telephone follow-up. Clin Toxicol (Phila) 2022; 60:947-953. [PMID: 35311427 DOI: 10.1080/15563650.2022.2051537] [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] [Indexed: 11/03/2022]
Abstract
INTRODUCTION In recent years, the number of patients managed by poison control centres (PCCs) has increased without a proportional increase in the number of physicians. To improve efficiency without neglecting patient follow-up, some PCCs have begun using text messages. We evaluated the difference in response rates between text messaging and traditional telephone follow-up. MATERIALS AND METHODS This retrospective, monocentric, non-randomised cohort study was conducted using data from calls made by the New Aquitaine PCC between February 27, 2019, and March 31, 2019. Patients were contacted up to three times by a phone call or short message service (SMS). RESULTS For the analysis, 823 patients were included. At the end of follow-up, the response rates were similar in the phone call and SMS group (94 vs. 94%; p = 0.76) with median [interquartile range] response times of 0 min [0; 27 min] and 29 min [6; 120 min], respectively. The response rates did not differ in subgroups stratified according to sex, self-poisoning vs. relative response, age class, and solicitation during working hours vs. outside of working hours (all p > 0.5). Moreover, health practitioners required 2.4-fold more time to call than to send text messages (p < 0.001), and all practitioners were satisfied or very satisfied with text messaging implementation. CONCLUSION Patients had good adherence to text messages. Text messages are easy to use, rapid, and allow the physician to easily prioritise follow-up without occupying the emergency line. Additionally, the costs of installation and maintenance are low for text message systems; these low costs facilitate the implementation of such services in various medical situations.
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Affiliation(s)
- Jules-Antoine Vaucel
- Service des Urgences Adulte [Emergency Department], Centre Hospitalier et Universitaire Pellegrin, Bordeaux, France.,Centre Antipoison Nouvelle Aquitaine [Nouvelle Aquitaine Poison Control Center], Centre Hospitalier et Universitaire Pellegrin, Bordeaux Cedex, France
| | - Nicolas Enaud
- Service des Urgences [Emergency Department], Centre Hospitalier d'Arcachon, La Teste de Buch, France
| | - Camille Paradis
- Centre Antipoison Nouvelle Aquitaine [Nouvelle Aquitaine Poison Control Center], Centre Hospitalier et Universitaire Pellegrin, Bordeaux Cedex, France
| | - Coralie Bragança
- Centre Antipoison Nouvelle Aquitaine [Nouvelle Aquitaine Poison Control Center], Centre Hospitalier et Universitaire Pellegrin, Bordeaux Cedex, France
| | - Arnaud Courtois
- Centre Antipoison Nouvelle Aquitaine [Nouvelle Aquitaine Poison Control Center], Centre Hospitalier et Universitaire Pellegrin, Bordeaux Cedex, France
| | - Maxime Lan
- Centre Antipoison Nouvelle Aquitaine [Nouvelle Aquitaine Poison Control Center], Centre Hospitalier et Universitaire Pellegrin, Bordeaux Cedex, France
| | - Cédric Gil-Jardine
- Service des Urgences Adulte [Emergency Department], Centre Hospitalier et Universitaire Pellegrin, Bordeaux, France.,Bordeaux Population Health Research Center, IETO Team, Université de Bordeaux, Bordeaux, France
| | | | - Raphaël Enaud
- Service d'Hépato Gastroentérologie Pédiatrique [Pediatric Hepato Gastroenterology Department], Centre Hospitalier et Universitaire Pellegrin, Bordeaux Cedex, France
| | - Magali Labadie
- Centre Antipoison Nouvelle Aquitaine [Nouvelle Aquitaine Poison Control Center], Centre Hospitalier et Universitaire Pellegrin, Bordeaux Cedex, France
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Vaucel JA, Gil-Jardine C, Labadie M, Larréché S, Paradis C, Nardon A, Courtois A, Langrand J, Kallel H. Comment on epidemiology of scorpionism in France: nationwide scorpion exposure. Description of Buthus pyrenaeus envenoming. Clin Toxicol (Phila) 2022; 60:890-891. [PMID: 35257608 DOI: 10.1080/15563650.2022.2046776] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Jules-Antoine Vaucel
- Centre Antipoison Nouvelle Aquitaine [Poison Control Centre of Nouvelle Aquitaine], Centre Hospitalier et Universitaire Bordeaux Pellegrin, Bordeaux, Nouvelle Aquitaine, France.,Service des Urgences Adulte [Emergency Department], Centre Hospitalier et Universitaire Bordeaux Pellegrin, Bordeaux, Nouvelle Aquitaine, France
| | - Cédric Gil-Jardine
- Service des Urgences Adulte [Emergency Department], Centre Hospitalier et Universitaire Bordeaux Pellegrin, Bordeaux, Nouvelle Aquitaine, France
| | - Magali Labadie
- Centre Antipoison Nouvelle Aquitaine [Poison Control Centre of Nouvelle Aquitaine], Centre Hospitalier et Universitaire Bordeaux Pellegrin, Bordeaux, Nouvelle Aquitaine, France
| | - Sébastien Larréché
- Département de Biologie Médicale [Medical Biology Department], Hôpital d'Instruction Des Armées Bégin, Saint-Mandé, Ile de France, France.,INSERM UMRS-1144, University of Paris, Paris, France
| | - Camille Paradis
- Centre Antipoison Nouvelle Aquitaine [Poison Control Centre of Nouvelle Aquitaine], Centre Hospitalier et Universitaire Bordeaux Pellegrin, Bordeaux, Nouvelle Aquitaine, France
| | - Audrey Nardon
- Centre Antipoison Nouvelle Aquitaine [Poison Control Centre of Nouvelle Aquitaine], Centre Hospitalier et Universitaire Bordeaux Pellegrin, Bordeaux, Nouvelle Aquitaine, France
| | - Arnaud Courtois
- Centre Antipoison Nouvelle Aquitaine [Poison Control Centre of Nouvelle Aquitaine], Centre Hospitalier et Universitaire Bordeaux Pellegrin, Bordeaux, Nouvelle Aquitaine, France
| | - Jérôme Langrand
- Département de Biologie Médicale [Medical Biology Department], Hôpital d'Instruction Des Armées Bégin, Saint-Mandé, Ile de France, France.,Centre Antipoison de Paris [Paris Poison Control Center], Fédération de Toxicologie (FeTox), Hôpital Fernand Widal, AP-HP, Paris, France
| | - Hatem Kallel
- Service de Réanimation [Intensive Care Unit], Centre Hospitalier de Cayenne, Cayenne, French Guiana, France
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Paradis C, Courtois A, Vaucel JA, Labadie M. Intoxication par la strychnine et strychninémie : à propos d’un cas. Toxicologie Analytique et Clinique 2021. [DOI: 10.1016/j.toxac.2021.08.011] [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: 11/16/2022]
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Beaumont P, Faure C, Courtois A, Jourdes M, Marchal A, Teissedre PL, Richard T, Atgié C, Krisa S. Trans-ε-Viniferin Encapsulation in Multi-Lamellar Liposomes: Consequences on Pharmacokinetic Parameters, Biodistribution and Glucuronide Formation in Rats. Nutrients 2021; 13:4212. [PMID: 34959765 PMCID: PMC8708455 DOI: 10.3390/nu13124212] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 11/10/2021] [Accepted: 11/23/2021] [Indexed: 11/23/2022] Open
Abstract
Trans-ε-viniferin (εVin) is a resveratrol dimer exhibiting promising biological activities for human health. Its bioavailability being low, the development of encapsulation methods would be used to overcome this issue. The aim of this study was to measure the consequences of the encapsulation of εVin in multilamellar liposomes on its pharmacokinetic parameters, metabolism and tissue distribution in rats. After oral administration of εVin (20 mg/kg body weight), either as free or encapsulated forms, plasmas were sequentially collected (from 0 to 4 h) as well as liver, kidneys and adipose tissues (4 h after administration) and analyzed by LC-HRMS. The glucuronide metabolites (εVG) were also produced by hemisynthesis for their quantification in plasma and tissues. The encapsulation process did not significantly modify the pharmacokinetic parameters of εVin itself. However, a significant increase of the T1/2 was noticed for εVG after administration of the encapsulated form as compared to the free form. An accumulation of εVin and εVG in adipose tissues was noticed, and interestingly a significant increase of the latter in the mesenteric one after administration of the encapsulated form was highlighted. Since adipose tissues could represent storage depots, and encapsulation allows for prolonging the exposure time of glucuronide metabolites in the organism, this could be of interest to promote their potential biological activities.
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Affiliation(s)
- Pauline Beaumont
- INRAE, Bordeaux INP, UR OENOLOGIE, EA 4577, USC 1366, ISVV, Université de Bordeaux, 33140 Villenave d’Ornon, France; (P.B.); (A.C.); (M.J.); (A.M.); (P.-L.T.); (T.R.)
| | - Chrystel Faure
- CNRS, Bordeaux INP, CBMN, UMR 5248, Université de Bordeaux, 33600 Pessac, France;
| | - Arnaud Courtois
- INRAE, Bordeaux INP, UR OENOLOGIE, EA 4577, USC 1366, ISVV, Université de Bordeaux, 33140 Villenave d’Ornon, France; (P.B.); (A.C.); (M.J.); (A.M.); (P.-L.T.); (T.R.)
- Centre Antipoison et de Toxicovigilance de Nouvelle Aquitaine, Bâtiment UNDR, CHU de Bordeaux, Place Amélie Raba Léon, 33076 Bordeaux, France
| | - Michael Jourdes
- INRAE, Bordeaux INP, UR OENOLOGIE, EA 4577, USC 1366, ISVV, Université de Bordeaux, 33140 Villenave d’Ornon, France; (P.B.); (A.C.); (M.J.); (A.M.); (P.-L.T.); (T.R.)
| | - Axel Marchal
- INRAE, Bordeaux INP, UR OENOLOGIE, EA 4577, USC 1366, ISVV, Université de Bordeaux, 33140 Villenave d’Ornon, France; (P.B.); (A.C.); (M.J.); (A.M.); (P.-L.T.); (T.R.)
| | - Pierre-Louis Teissedre
- INRAE, Bordeaux INP, UR OENOLOGIE, EA 4577, USC 1366, ISVV, Université de Bordeaux, 33140 Villenave d’Ornon, France; (P.B.); (A.C.); (M.J.); (A.M.); (P.-L.T.); (T.R.)
| | - Tristan Richard
- INRAE, Bordeaux INP, UR OENOLOGIE, EA 4577, USC 1366, ISVV, Université de Bordeaux, 33140 Villenave d’Ornon, France; (P.B.); (A.C.); (M.J.); (A.M.); (P.-L.T.); (T.R.)
| | - Claude Atgié
- CNRS, Bordeaux INP, CBMN, UMR 5248, Université de Bordeaux, 33600 Pessac, France;
| | - Stéphanie Krisa
- INRAE, Bordeaux INP, UR OENOLOGIE, EA 4577, USC 1366, ISVV, Université de Bordeaux, 33140 Villenave d’Ornon, France; (P.B.); (A.C.); (M.J.); (A.M.); (P.-L.T.); (T.R.)
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Vaucel JA, Larréché S, Paradis C, Labadie M, Courtois A, Grenet G, Langrand J, Tournoud C, Nisse P, Gallart JC, Schmitt C, Torrents R, Le Roux G, Gil-Jardine C, Kallel H. Relationship Between Scorpion Stings Events and Environmental Conditions in Mainland France. J Med Entomol 2021; 58:2146-2153. [PMID: 34224562 DOI: 10.1093/jme/tjab109] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Indexed: 06/13/2023]
Abstract
In the world, the impact of environmental conditions on the number of scorpion events was evaluated in North Africa,Middle East, and the Amazonian region but not in Europe. In mainland France, scorpion species described are Buthus occitanus (Amoreux, 1789), Belisarius xambeui (Simon, 1879) and 4 Euscorpiidae: Euscorpius concinnus (Koch, 1837), Euscorpius italicus (Herbst, 1800), Euscorpius tergestinus (Koch, 1837), and Tetratrichobothrius flavicaudis (De Geer, 1778). We aimed to describe the impact of environmental conduction on the number of scorpion events. For this, a retrospective multi-center study was conducted with data from the French poison control centers files about scorpion events between 1 January 2011 and 31 December 2020. During the study period, 975 incoming calls for scorpion events were recorded and 574 were related to scorpions native to mainland France and Corsica: B. occitanus (n = 86), Euscorpiidae species (n = 222), B. xambeui (n = 1), and undetermined species (n = 265). Cases were mostly reported along the Mediterranean coast, along rivers, and in cities with a trading port. The number of scorpion events was linked to the rivers' water level, rivers' flow, temperature, sunshine, and pluviometry (P < 0.05 for all variables). B. occitanus need warmest and driest environment than Euscorpiidae spp. A link between the severity of the envenoming and climatic condition or seasonality was not demonstrated.
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Affiliation(s)
- Jules-Antoine Vaucel
- Centre Antipoison Nouvelle Aquitaine [Poison Control Center of Nouvelle-Aquitaine], Centre hospitalier et universitaire Pellegrin, CHU de Bordeaux, 1 Place Amélie Rabat Léon, Bordeaux 33076, Nouvelle Aquitaine, France
- Service des urgences adulte [Emergency Department], Centre hospitalier et universitaire Pellegrin, Bordeaux 33076, Nouvelle Aquitaine, France
| | - Sébastien Larréché
- Département de Biologie Médicale [Medical Biology Department], Hôpital d'Instruction Des Armées Bégin, Saint-Mandé 94160, Ile de France, France
| | - Camille Paradis
- Centre Antipoison Nouvelle Aquitaine [Poison Control Center of Nouvelle-Aquitaine], Centre hospitalier et universitaire Pellegrin, CHU de Bordeaux, 1 Place Amélie Rabat Léon, Bordeaux 33076, Nouvelle Aquitaine, France
| | - Magali Labadie
- Centre Antipoison Nouvelle Aquitaine [Poison Control Center of Nouvelle-Aquitaine], Centre hospitalier et universitaire Pellegrin, CHU de Bordeaux, 1 Place Amélie Rabat Léon, Bordeaux 33076, Nouvelle Aquitaine, France
| | - Arnaud Courtois
- Centre Antipoison Nouvelle Aquitaine [Poison Control Center of Nouvelle-Aquitaine], Centre hospitalier et universitaire Pellegrin, CHU de Bordeaux, 1 Place Amélie Rabat Léon, Bordeaux 33076, Nouvelle Aquitaine, France
| | - Guillaume Grenet
- Centre Hospitalier Universitaire de Lyon, Centre Antipoison [Lyon Poison Control Center], Lyon 69000, Auvergne-Rhône-Alpes, France
| | - Jérome Langrand
- Centre Antipoison de Paris [Poison Control Center of Paris], hôpital Fernand-Widal, Paris 75000, Ile de France, France
| | - Christine Tournoud
- Centre Hospitalier Universitaire de Nancy, Centre Antipoison [East Poison Control Center], Nancy 54000, Grand Est, France
| | - Patrick Nisse
- Centre hospitalier Universitaire de Lille, Centre Antipoison [Lille Poison Control Center], Lille 59000, Haut de France, France
| | - Jean-Christophe Gallart
- Centre Hospitalier Universitaire de Toulouse, Centre Antipoison-SAMU 31 [Toulouse Poison Control Center], Toulouse 31000, Occitanie, France
| | - Corinne Schmitt
- Centre Hospitalier Universitaire de Marseille, Centre Antipoison [Marseille Poison Control Center], Marseille 13000, Provence-Alpes-Côte-D'azur, France
| | - Romain Torrents
- Centre Hospitalier Universitaire de Marseille, Centre Antipoison [Marseille Poison Control Center], Marseille 13000, Provence-Alpes-Côte-D'azur, France
| | - Gaël Le Roux
- Centre Hospitalier Universitaire d'Angers, Centre Antipoison [Angers Poison Control Center], Angers 49000, Pays de la Loire, France
| | - Cédric Gil-Jardine
- Service des urgences adulte [Emergency Department], Centre hospitalier et universitaire Pellegrin, Bordeaux 33076, Nouvelle Aquitaine, France
- Bordeaux Population Health Research Center, IETO Team, Université de Bordeaux, Bordeaux 33076, Nouvelle Aquitaine, France
| | - Hatem Kallel
- Service de Réanimation [Intensive Care Unit], Centre Hospitalier de Cayenne, Cayenne 97300, French Guiana, France
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Boels D, Courtois A, Paradis C, Caillet P, Labadie M. First step in assessment of VipGrade ®, a computerized clinical decision system to assess Vipera envenomation grading: a single-center interrater reliability study. Clin Toxicol (Phila) 2021; 60:514-520. [PMID: 34709955 DOI: 10.1080/15563650.2021.1993241] [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] [Indexed: 10/20/2022]
Abstract
METHODS We conducted a retrospective review of Vipera spp. snakebite cases registered by the PCC of Bordeaux, France, between January 1, 2018, and December 31, 2020, evaluating the agreement between VipGrade® assessments, toxicologists' assessments, and current guidelines. RESULTS 133 patients with Vipera aspis snakebites were included. There was 100% agreement in severity grading by PCC guidelines and VipGrade®. However, grading by toxicologists and VipGrade® diverged in 19 cases (85% agreement; κ = 0.80; 95% CI: 0.71 to 0.87). CONCLUSIONS The VipGrade® tool's grading reflects current PCC guidelines, which are authoritative in France, and may allow for a more rapid and standardized determination of management and follow-up of viper-bitten patients. It should be noted, however, that the more complex and dynamic aspects of management are not included in VipGrade®. Its purpose is to supplement, not replace, the advice of the PCC's clinical toxicologists, and this advice should be sought whenever a viper bite is encountered in clinical practice.
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Affiliation(s)
- David Boels
- Clinical Toxicology Unit, Pharmacology Department, Nantes University Hospital, Nantes, France.,SPIN Unit, Public Health Department, Nantes University Hospital, Nantes, France.,Inserm UMR-1144, Descartes University, Paris, France
| | - Arnaud Courtois
- Poison Control Center, Bordeaux University Hospital, Bordeaux, France
| | - Camille Paradis
- Poison Control Center, Bordeaux University Hospital, Bordeaux, France
| | - Pascal Caillet
- SPIN Unit, Public Health Department, Nantes University Hospital, Nantes, France
| | - Magali Labadie
- Poison Control Center, Bordeaux University Hospital, Bordeaux, France
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Paradis C, Dondia D, Nardon A, Blanc-Brisset I, Courtois A, Vaucel JA, Labadie M. Strychnine, old still actual poison: description of poisoning cases reported to French Poison Control Centers over the past thirteen years. TOXIN REV 2021. [DOI: 10.1080/15569543.2021.1983843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Camille Paradis
- Centre Antipoison et de Toxicovigilance de Nouvelle-Aquitaine, Centre Hospitalier Universitaire de Pellegrin, Bordeaux, France
| | - Denis Dondia
- Centre Antipoison et de Toxicovigilance de Nouvelle-Aquitaine, Centre Hospitalier Universitaire de Pellegrin, Bordeaux, France
| | - Audrey Nardon
- Centre Antipoison et de Toxicovigilance de Nouvelle-Aquitaine, Centre Hospitalier Universitaire de Pellegrin, Bordeaux, France
| | - Ingrid Blanc-Brisset
- Centre Antipoison et de Toxicovigilance de Nouvelle-Aquitaine, Centre Hospitalier Universitaire de Pellegrin, Bordeaux, France
| | - Arnaud Courtois
- Centre Antipoison et de Toxicovigilance de Nouvelle-Aquitaine, Centre Hospitalier Universitaire de Pellegrin, Bordeaux, France
- Unité de recherche OEnologie; EA 4577; USC 1366 INRA; Institut des Sciences de la Vigne et du Vin, Université de Bordeaux, Villenave d’Ornon, France
| | - Jules-Antoine Vaucel
- Centre Antipoison et de Toxicovigilance de Nouvelle-Aquitaine, Centre Hospitalier Universitaire de Pellegrin, Bordeaux, France
| | - Magali Labadie
- Centre Antipoison et de Toxicovigilance de Nouvelle-Aquitaine, Centre Hospitalier Universitaire de Pellegrin, Bordeaux, France
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Bardey V, Pelletier N, Danoux L, Reymermier C, Courtois A. 167 Contribution of miRNAs as epigenetic regulators of Retinol efficacy in the skin dermis. J Invest Dermatol 2021. [DOI: 10.1016/j.jid.2021.08.171] [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: 10/20/2022]
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Vaucel JA, Paradis C, Courtois A, Bragança C, Moltini A, Labadie M, Kallel H. Les Scorpions en France Métropolitaine : clés de Détermination et Répartition Géographique. Toxicologie Analytique et Clinique 2021. [DOI: 10.1016/j.toxac.2021.06.064] [Citation(s) in RCA: 1] [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: 11/25/2022]
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Jerusalem G, Farah S, Courtois A, Chirgwin J, Aebi S, Karlsson P, Neven P, Hitre E, Graas MP, Simoncini E, Abdi E, Kamby C, Thompson A, Loibl S, Gavilá J, Kuroi K, Marth C, Müller B, O'Reilly S, Gombos A, Ruhstaller T, Burstein HJ, Rabaglio M, Ruepp B, Ribi K, Viale G, Gelber RD, Coates AS, Loi S, Goldhirsch A, Regan MM, Colleoni M. Continuous versus intermittent extended adjuvant letrozole for breast cancer: final results of randomized phase III SOLE (Study of Letrozole Extension) and SOLE Estrogen Substudy. Ann Oncol 2021; 32:1256-1266. [PMID: 34384882 DOI: 10.1016/j.annonc.2021.07.017] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [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: 03/12/2021] [Revised: 07/28/2021] [Accepted: 07/29/2021] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Late recurrences in postmenopausal women with hormone receptor-positive breast cancers remain an important challenge. Avoidance or delayed development of resistance represents the main objective in extended endocrine therapy (ET). In animal models, resistance was reversed with restoration of circulating estrogen levels during interruption of letrozole treatment. This phase III, randomized, open-label Study of Letrozole Extension (SOLE) studied the effect of extended intermittent letrozole treatment in comparison with continuous letrozole. In parallel, the SOLE estrogen substudy (SOLE-EST) analyzed the levels of estrogen during the interruption of treatment. PATIENTS AND METHODS SOLE enrolled 4884 postmenopausal women with hormone receptor-positive, lymph node-positive, operable breast cancer between December 2007 and October 2012 and among them, 104 patients were enrolled in SOLE-EST. They must have undergone local treatment and have completed 4-6 years of adjuvant ET. Patients were randomized between continuous letrozole (2.5 mg/day orally for 5 years) and intermittent letrozole treatment (2.5 mg/day for 9 months followed by a 3-month interruption in years 1-4 and then 2.5 mg/day during all of year 5). RESULTS Intention-to-treat population included 4851 women in SOLE (n = 2425 in the intermittent and n = 2426 in the continuous letrozole groups) and 103 women in SOLE-EST (n = 78 in the intermittent and n = 25 in the continuous letrozole groups). After a median follow-up of 84 months, 7-year disease-free survival (DFS) was 81.4% in the intermittent group and 81.5% in the continuous group (hazard ratio: 1.03, 95% confidence interval: 0.91-1.17). Reported adverse events were similar in both groups. Circulating estrogen recovery was demonstrated within 6 weeks after the stop of letrozole treatment. CONCLUSIONS Extended adjuvant ET by intermittent administration of letrozole did not improve DFS compared with continuous use, despite the recovery of circulating estrogen levels. The similar DFS coupled with previously reported quality-of-life advantages suggest intermittent extended treatment is a valid option for patients who require or prefer a treatment interruption.
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Affiliation(s)
- G Jerusalem
- International Breast Cancer Study Group, Bern, Switzerland; Medical Oncology Department, CHU Liège, Liège University, Liège, Belgium.
| | - S Farah
- International Breast Cancer Study Group Statistical Center, Division of Biostatistics, Dana-Farber Cancer Institute, Boston, USA
| | - A Courtois
- Medical Oncology Department, CHU Liège, Liège University, Liège, Belgium
| | - J Chirgwin
- Breast Cancer Trials-Australia and New Zealand, University of Newcastle, Callaghan, Australia; Box Hill and Maroondah Hospitals, Monash University, Clayton, Australia
| | - S Aebi
- Division of Medical Oncology, Cancer Center, Lucerne Cantonal Hospital, Lucerne, Switzerland; Faculty of Medicine, University of Bern, Bern, Switzerland
| | - P Karlsson
- Department of Oncology, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - P Neven
- Gynecologic Oncology and Multidisciplinary Breast Center, University Hospitals UZ-Leuven, KU Leuven, Leuven, Belgium
| | - E Hitre
- Department of Medical Oncology and Clinical Pharmacology "B", National Institute of Oncology, Budapest, Hungary
| | | | - E Simoncini
- ASST Spedali Civili di Brescia, Brescia, Italy
| | - E Abdi
- The Tweed Hospital, Griffith University Gold Coast, Tweed Heads, Australia
| | - C Kamby
- Danish Breast Cancer Group and Rigshospitalet, Copenhagen, Denmark
| | - A Thompson
- Scottish Cancer Trials Breast Group and Division of Surgical Oncology, Baylor College of Medicine, Houston, USA
| | - S Loibl
- German Breast Group Forschungs GmbH, Neu-Isenburg, Germany
| | - J Gavilá
- SOLTI Group and Fundación Instituto Valenciano de Oncologia, Valencia, Spain
| | - K Kuroi
- Japan Breast Cancer Research Group and Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo, Japan
| | - C Marth
- Austrian Breast & Colorectal Cancer Study Group and Department of Obstetrics and Gynecology, Medical University Innsbruck, Innsbruck, Austria
| | - B Müller
- Chilean Cooperative Group for Oncologic Research (GOCCHI), Providencia, Santiago, Chile
| | - S O'Reilly
- Cancer Trials Ireland, Dublin, Ireland; University College Cork, Cork University Hospital, Cork, Ireland
| | - A Gombos
- Université Libre de Bruxelles, Institut Jules Bordet, Brussels, Belgium
| | - T Ruhstaller
- International Breast Cancer Study Group, Bern, Switzerland; Swiss Group for Clinical Cancer Research SAKK, Bern, Switzerland; Breast Center St. Gallen, St. Gallen, Switzerland; Faculty of Medicine, University of Basel, Basel, Switzerland
| | - H J Burstein
- Medical Oncology Department, CHU Liège, Liège University, Liège, Belgium; Harvard Medical School, Boston, USA; Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, USA
| | - M Rabaglio
- International Breast Cancer Study Group, Bern, Switzerland; Swiss Group for Clinical Cancer Research SAKK, Bern, Switzerland; Department of Medical Oncology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - B Ruepp
- International Breast Cancer Study Group, Bern, Switzerland
| | - K Ribi
- International Breast Cancer Study Group, Bern, Switzerland
| | - G Viale
- Department of Pathology, University of Milan, Milan, Italy; IEO European Institute of Oncology IRCCS, Milan, Italy
| | - R D Gelber
- International Breast Cancer Study Group Statistical Center, Division of Biostatistics, Dana-Farber Cancer Institute, Boston, USA; Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, USA; Harvard TH Chan School of Public Health, Boston, USA; Frontier Science Foundation, Boston, USA
| | - A S Coates
- International Breast Cancer Study Group, Bern, Switzerland; NHMRC Clinical Trials Centre, University of Sydney, Sydney, Australia
| | - S Loi
- International Breast Cancer Study Group, Bern, Switzerland; Peter MacCallum Cancer Center, University of Melbourne, Melbourne, Australia
| | - A Goldhirsch
- International Breast Cancer Study Group, Bern, Switzerland; IEO European Institute of Oncology, IRCCS, Milan, Italy
| | - M M Regan
- International Breast Cancer Study Group Statistical Center, Division of Biostatistics, Dana-Farber Cancer Institute, Boston, USA; Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, USA
| | - M Colleoni
- International Breast Cancer Study Group, Bern, Switzerland; Division of Medical Senology, IEO, European Institute of Oncology, IRCCS, Milan, Italy
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Beaumont P, Courtois A, Richard T, Krisa S, Faure C. Encapsulation of ε-Viniferin into Multi-Lamellar Liposomes: Development of a Rapid, Easy and Cost-Efficient Separation Method to Determine the Encapsulation Efficiency. Pharmaceutics 2021; 13:pharmaceutics13040566. [PMID: 33923723 PMCID: PMC8073621 DOI: 10.3390/pharmaceutics13040566] [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: 01/28/2021] [Revised: 04/02/2021] [Accepted: 04/08/2021] [Indexed: 01/05/2023] Open
Abstract
Onion-type multi-lamellar liposomes (MLLs), composed of a mixture of phosphatidylcholine and Tween 80, were analyzed for their ability to encapsulate ε-Viniferin (εVin), a resveratrol dimer. Their encapsulation efficiency (EE) was measured by UV-VIS spectroscopy using three different separation methods—ultracentrifugation, size exclusion chromatography, and a more original and advantageous one, based on adsorption filtration. The adsorption filtration method consists indeed of using syringe filters to retain the molecule of interest, and not the liposomes as usually performed. The process is rapid (less than 10 min), easy to handle, and inexpensive in terms of sample amount (around 2 mg of liposomes) and equipment (one syringe filter is required). Whatever the separation method, a similar EE value was determined, validating the proposed method. A total of 80% ± 4% of εVin was found to be encapsulated leading to a 6.1% payload, roughly twice those reported for resveratrol-loaded liposomes. Finally, the release kinetics of εVin from MLLs was followed for a 77 day period, demonstrating a slow release of the polyphenol.
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Affiliation(s)
- Pauline Beaumont
- UR Œnologie, MIB, EA 4577, USC 1366 INRAE, ISVV, Université de Bordeaux, 33882 Villenave d’Ornon, France; (P.B.); (A.C.); (T.R.); (S.K.)
- Bordeaux INP, UR Œnologie, MIB, EA 4577, USC 1366 INRAE, 33882 Villenave d’Ornon, France
| | - Arnaud Courtois
- UR Œnologie, MIB, EA 4577, USC 1366 INRAE, ISVV, Université de Bordeaux, 33882 Villenave d’Ornon, France; (P.B.); (A.C.); (T.R.); (S.K.)
- Bordeaux INP, UR Œnologie, MIB, EA 4577, USC 1366 INRAE, 33882 Villenave d’Ornon, France
- Centre Antipoison et de Toxicovigilance de Nouvelle Aquitaine, Bâtiment UNDR, CHU de Bordeaux, 33076 Bordeaux, France
| | - Tristan Richard
- UR Œnologie, MIB, EA 4577, USC 1366 INRAE, ISVV, Université de Bordeaux, 33882 Villenave d’Ornon, France; (P.B.); (A.C.); (T.R.); (S.K.)
- Bordeaux INP, UR Œnologie, MIB, EA 4577, USC 1366 INRAE, 33882 Villenave d’Ornon, France
| | - Stéphanie Krisa
- UR Œnologie, MIB, EA 4577, USC 1366 INRAE, ISVV, Université de Bordeaux, 33882 Villenave d’Ornon, France; (P.B.); (A.C.); (T.R.); (S.K.)
- Bordeaux INP, UR Œnologie, MIB, EA 4577, USC 1366 INRAE, 33882 Villenave d’Ornon, France
| | - Chrystel Faure
- Department of Chemistry, Université de Bordeaux, CBMN, UMR 5248, 33600 Pessac, France
- Bordeaux INP, CBMN, UMR 5248, 33600 Pessac, France
- Correspondence: ; Tel.: +33-540-006-833; Fax: +33-540-008-496
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Dondia D, Paradis C, Courtois A, Nardon A, Blanc-Brisset I, Labadie M. Strychnine, un vieux produit… toujours d’actualité : Description d’un cas et analyse des décès rapportés aux centres antipoison en France au cours des dix dernières années. Toxicologie Analytique et Clinique 2021. [DOI: 10.1016/j.toxac.2020.10.050] [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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Vaucel JA, Gil-Jardine C, Labadie M, Larréché S, Paradis C, Nardon A, Courtois A, Langrand J, Kallel H. Epidemiology of scorpionism in France: nationwide scorpion exposure. Clin Toxicol (Phila) 2021; 59:888-895. [DOI: 10.1080/15563650.2021.1884692] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Jules-Antoine Vaucel
- Centre Antipoison Nouvelle Aquitaine [Poison Control Centre of Nouvelle Aquitaine], Centre Hospitalier et Universitaire Bordeaux Pellegrin, Bordeaux, France
- Service des Urgences Adulte [Emergency Department], Centre Hospitalier et Universitaire Bordeaux Pellegrin, Bordeaux, France
| | - Cédric Gil-Jardine
- Service des Urgences Adulte [Emergency Department], Centre Hospitalier et Universitaire Bordeaux Pellegrin, Bordeaux, France
| | - Magali Labadie
- Centre Antipoison Nouvelle Aquitaine [Poison Control Centre of Nouvelle Aquitaine], Centre Hospitalier et Universitaire Bordeaux Pellegrin, Bordeaux, France
| | - Sébastien Larréché
- Département de Biologie Médicale [Medical Biology Department], Hôpital d'Instruction Des Armées Bégin, Saint-Mandé, France
| | - Camille Paradis
- Centre Antipoison Nouvelle Aquitaine [Poison Control Centre of Nouvelle Aquitaine], Centre Hospitalier et Universitaire Bordeaux Pellegrin, Bordeaux, France
| | - Audrey Nardon
- Centre Antipoison Nouvelle Aquitaine [Poison Control Centre of Nouvelle Aquitaine], Centre Hospitalier et Universitaire Bordeaux Pellegrin, Bordeaux, France
| | - Arnaud Courtois
- Centre Antipoison Nouvelle Aquitaine [Poison Control Centre of Nouvelle Aquitaine], Centre Hospitalier et Universitaire Bordeaux Pellegrin, Bordeaux, France
| | - Jérôme Langrand
- Centre Antipoison de Paris [Poison Control Centre of Paris], Hôpital Fernand-Widal, Paris, France
| | - Hatem Kallel
- Service de Réanimation [Intensive Care Unit], Centre Hospitalier de Cayenne, Cayenne, France
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Balayssac D, Pereira B, Cuq P, Douris J, Ferrari L, Boutet-Robinet E, Lechevrel M, Demeilliers C, Rat P, Coudoré F, Verron E, Lacarelle B, Guitton J, Courtois A, Allorge D, Pain S, Guerbet M, Collin A, Vennat B, Brousse G, Authier N, Laporte C. Perception of pharmacy students toward opioid-related disorders and roles of community pharmacists: A French nationwide cross-sectional study. Subst Abus 2020; 42:706-715. [PMID: 33320801 DOI: 10.1080/08897077.2020.1850607] [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] [Indexed: 10/22/2022]
Abstract
Background: Community pharmacists are among the frontline health professionals who manage patients with an opioid-related disorder (ORD). Pharmacists frequently have a negative attitude toward these patients, which could have a negative impact on their management. However, education on ORD may improve the attitude of future healthcare professionals. This cross-sectional study aimed to assess French pharmacy students' perceptions of ORD. Methods: This online survey was performed by emails sent to French pharmacy schools (between January 14, 2019 and May 31, 2019). The primary outcome was the perception (visual analogic scale) of ORD as a disease, the roles of community pharmacies (delivery of opioid agonist therapy-OAT and harm reduction kits), and the efficacy of OAT. The secondary outcomes assessed professional experience, university experience of and education on ORD, and the individual characteristics of students. Results: Among the 1,994 students included, 76.3% perceived ORD as a disease and felt that it was normal for pharmacists to deliver OAT (78.9%) and harm reduction kits (74.6%). However, only 46.9% perceived OAT as being effective. Multivariable analyses showed that females had a more positive perception in recognizing ORD as a disease. The progression through university years increased the positive perception of ORD as a disease and the delivery of OAT and harm reduction kits by pharmacists. Education on substance-related disorders had no impact on any scores. Students who had already delivered OAT had a negative perception of their efficacy. The students who had already performed pharmacy jobs or traineeships had a negative perception of harm reduction kit delivery. Conclusion: Education on substance-related disorders had no impact on students' perceptions. It seemed that the maturity acquired through university years had a stronger impact on the students' perceptions of ORD. Efforts must be made to improve our teaching methods and reinforce the confidence of students in the roles of community pharmacists.
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Affiliation(s)
- David Balayssac
- Inserm U1107, NEURO-DOL, Université Clermont Auvergne, CHU Clermont-Ferrand, France
| | - Bruno Pereira
- Délégation à la recherche clinique et à l'innovation, CHU Clermont-Ferrand, Clermont-Ferrand, France
| | - Pierre Cuq
- Faculté de Pharmacie, Institut des Biomolécules Max Mousseron (IBMM), UMR 5247, CNRS, ENSCM, Université de Montpellier, Montpellier, France
| | - Juliette Douris
- UFR de Pharmacie, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Luc Ferrari
- Institut Jean Lamour, UMR 7198 CNRS, Université de Lorraine, Nancy, France
| | - Elisa Boutet-Robinet
- Toxalim (Research Centre in Food Toxicology), INRAE, ENVT, INP-Purpan, UPS, Université de Toulouse, Toulouse, France
| | | | - Christine Demeilliers
- Environnement et Prédiction de la Santé des Populations, Laboratoire TIMC-IMAG (UMR-CNRS 5525), Université Grenoble-Alpes, La Tronche, France
| | - Patrice Rat
- Faculté de Pharmacie de Paris, CNRS UMR-8038 CiTCoM, Université de Paris, Paris, France
| | - François Coudoré
- Lab neuropharmacologie, CESP UMR-S1178, Université Paris-Saclay, Chatenay Malabry, Laboratoire de Microbiologie Clinique et Plateforme de dosage des anti-infectieux, Groupe Hospitalier Paris Saint Joseph, Paris, France
| | - Elise Verron
- UFR pharmacie, département E2M, CNRS 6230, Université de Nantes, Nantes, France
| | - Bruno Lacarelle
- SMARTc Unit, Centre de Recherche en Cancérologie de Marseille, Inserm U1068, Assistance Publique des Hôpitaux de Marseille, Laboratoire de Pharmacocinétique et Toxicologie, Université Aix Marseille, Marseille, France
| | - Jérôme Guitton
- Laboratoire de Toxicologie, ISPBL, Faculté de Pharmacie de Lyon, Université Lyon 1, Lyon, France
| | - Arnaud Courtois
- CHU de Bordeaux, Centre Antipoison et de Toxicovigilance de Nouvelle Aquitaine, Université de Bordeaux, Bordeaux, France
| | - Delphine Allorge
- CHU Lille, Institut Pasteur de Lille, ULR 4483 - IMPECS - IMPact de l'Environnement Chimique sur la Santé humaine, Université de Lille, Lille, France
| | - Stéphanie Pain
- Laboratoire de Neurosciences Expérimentales et Cliniques - LNEC, INSERM U-1084, CHU Poitiers, Centre d'Addictovigilance, Pharmacologie clinique et vigilances, Université de Poitiers, Poitiers, France
| | - Michel Guerbet
- UNIROUEN, UNICAEN, ABTE, Normandie University, Rouen, France
| | - Aurore Collin
- Inserm U1107, NEURO-DOL, Université Clermont Auvergne, CHU Clermont-Ferrand, France
| | - Brigitte Vennat
- ACCePPT, UFR de Pharmacie, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Georges Brousse
- EA7280, UFR de Médicine, CHU Clermont-Ferrand Service de Psychiatrie B et d'addictologie, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Nicolas Authier
- Inserm U1107, NEURO-DOL, Université Clermont Auvergne, CHU Clermont-Ferrand, France
| | - Catherine Laporte
- Département de Médecine Générale, EA7280, UFR de Médicine, Université Clermont Auvergne, CHU Clermont-Ferrand, Clermont-Ferrand, France
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Athané A, Demol J, Brosset-Vincent S, Aguenou C, Krisa S, Courtois A, Griffiths H, Cagnac O. The safety evaluation of phycocyanin-enriched Galdieria sulphuraria extract using 90-day toxicity study in rats and in vitro genotoxicity studies. Toxicology Research and Application 2020. [DOI: 10.1177/2397847320929991] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
The microalgae Galdieria sulphuraria, which belong to the class of cyanidiophyceae, are thermostable at temperatures up to 55°C and have successfully been cultivated under controlled fermentation conditions to produce a protein-rich biomass from which a natural blue proteinaceous pigment, C-phycocyanin can be isolated. The C-phycocyanin has potential use as a colour additive and as a dietary supplement. This C-phycocyanin is resistant to acidic pH down to 2.75, in contrast to the one from Spirulina, which is already used as a colouring agent in agri-food applications. To further promote its use for industrial applications, we report, here, the results of a safety evaluation on a G. sulphuraria extract enriched to 33% C-phycocyanin. This was conducted in a 90-day repeated dose toxicity study in rats at doses from 250 to 4000 mg/kg body weight/day, in bacterial reversal mutation test at doses from 312.5 to 5000 µg/plate and in micronucleus assay at doses from 500 to 2000 µg/mL. Overall, our results indicated that the C-phycocyanin extract from G. sulphuraria did not exert any noteworthy adverse effect of toxicological significance in any of the system used for its safety evaluation, even if some minor changes were observed. According to the 90-day repeated dose toxicity study, no observed adverse effect level of 4000 mg/kg/day could be estimated. In conclusion, this study supports the safety of soluble fraction enriched with C-phycocyanin from G. sulphuraria for its use as food ingredient or supplement.
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Affiliation(s)
| | | | | | | | - Stéphanie Krisa
- Unité de Recherche Œnologie, Molécules d’Intérêt Biologique EA 4577, USC 1366 INRA Université de Bordeaux, Bordeaux INP, Institut des Sciences de la Vigne et du Vin, Villenave d’Ornon, France
| | - Arnaud Courtois
- Unité de Recherche Œnologie, Molécules d’Intérêt Biologique EA 4577, USC 1366 INRA Université de Bordeaux, Bordeaux INP, Institut des Sciences de la Vigne et du Vin, Villenave d’Ornon, France
- Laboratoire de Toxicologie, UFR des Sciences Pharmaceutiques, Université de Bordeaux, Bordeaux, France
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Aja I, Ruiz-Larrea MB, Courtois A, Krisa S, Richard T, Ruiz-Sanz JI. Screening of Natural Stilbene Oligomers from Vitis vinifera for Anticancer Activity on Human Hepatocellular Carcinoma Cells. Antioxidants (Basel) 2020; 9:antiox9060469. [PMID: 32492881 PMCID: PMC7346113 DOI: 10.3390/antiox9060469] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [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: 05/05/2020] [Revised: 05/26/2020] [Accepted: 05/26/2020] [Indexed: 02/06/2023] Open
Abstract
The characterization of bioactive resveratrol oligomers extracted from Vitis vinifera canes has been recently reported. Here, we screened six of these compounds (ampelopsin A, trans-ε-viniferin, hopeaphenol, isohopeaphenol, R2-viniferin, and R-viniferin) for their cytotoxic activity to human hepatocellular carcinoma (HCC) cell lines p53 wild-type HepG2 and p53-null Hep3B. The cytotoxic efficacy depended on the cell line. R2-viniferin was the most toxic stilbene in HepG2, with inhibitory concentration 50 (IC50) of 9.7 ± 0.4 µM at 72 h, 3-fold lower than for resveratrol, while Hep3B was less sensitive (IC50 of 47.8 ± 2.8 µM). By contrast, hopeaphenol (IC50 of 13.1 ± 4.1 µM) and isohopeaphenol (IC50 of 26.0 ± 3.0 µM) were more toxic to Hep3B. Due to these results, and because it did not exert a large cytotoxicity in HH4 non-transformed hepatocytes, R2-viniferin was selected to investigate its mechanism of action in HepG2. The stilbene tended to arrest cell cycle at G2/M, and it also increased intracellular reactive oxygen species (ROS), caspase 3 activity, and the ratio of Bax/Bcl-2 proteins, indicative of apoptosis. The distinctive toxicity of R2-viniferin on HepG2 encourages research into the underlying mechanism to develop the oligostilbene as a therapeutic agent against HCC with a particular genetic background.
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Affiliation(s)
- Iris Aja
- Free Radicals and Oxidative Stress (FROS) research group of the Department of Physiology, Medicine and Nursing School, University of the Basque Country UPV/EHU, 48940 Leioa, Spain; (I.A.); (J.-I.R.-S.)
- Univ. Bordeaux, INRAE, UR Œnologie, EA 4577, USC 1366, ISVV, 210 Chemin de Leysotte, F 33882 Villenave d’Ornon, France; (A.C.); (S.K.); (T.R.)
| | - M. Begoña Ruiz-Larrea
- Free Radicals and Oxidative Stress (FROS) research group of the Department of Physiology, Medicine and Nursing School, University of the Basque Country UPV/EHU, 48940 Leioa, Spain; (I.A.); (J.-I.R.-S.)
- Correspondence: ; Tel.: +34-946-012-829
| | - Arnaud Courtois
- Univ. Bordeaux, INRAE, UR Œnologie, EA 4577, USC 1366, ISVV, 210 Chemin de Leysotte, F 33882 Villenave d’Ornon, France; (A.C.); (S.K.); (T.R.)
| | - Stéphanie Krisa
- Univ. Bordeaux, INRAE, UR Œnologie, EA 4577, USC 1366, ISVV, 210 Chemin de Leysotte, F 33882 Villenave d’Ornon, France; (A.C.); (S.K.); (T.R.)
| | - Tristan Richard
- Univ. Bordeaux, INRAE, UR Œnologie, EA 4577, USC 1366, ISVV, 210 Chemin de Leysotte, F 33882 Villenave d’Ornon, France; (A.C.); (S.K.); (T.R.)
| | - José-Ignacio Ruiz-Sanz
- Free Radicals and Oxidative Stress (FROS) research group of the Department of Physiology, Medicine and Nursing School, University of the Basque Country UPV/EHU, 48940 Leioa, Spain; (I.A.); (J.-I.R.-S.)
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Vaucel J, Le Blond du Plouy N, Courtois A, Bragança C, Labadie M. Euscorpius flavicaudis sting is not lethal but not harmless either: First record of neurological symptoms in child after sting. Toxicologie Analytique et Clinique 2020. [DOI: 10.1016/j.toxac.2019.09.003] [Citation(s) in RCA: 1] [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: 01/18/2023]
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Courtois A, Garcia M, Krisa S, Atgié C, Sauvant P, Richard T, Faure C. Encapsulation of ε-viniferin in onion-type multi-lamellar liposomes increases its solubility and its photo-stability and decreases its cytotoxicity on Caco-2 intestinal cells. Food Funct 2020; 10:2573-2582. [PMID: 30997467 DOI: 10.1039/c9fo00420c] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
ε-Viniferin, a resveratrol dimer, is a naturally occurring stilbene that has been studied so far for its potential beneficial effects on human health. Its low water solubility, its photo-sensitivity and its low bioavailability make its applications in the food industry complicated. To overcome these limitations, ε-viniferin was encapsulated in phospholipid-based multi-lamellar liposomes (MLLs) called spherulites or onions. In the best case, an encapsulation efficiency of 58 ± 3% and a bioactive loading of 4.2 ± 0.5% were reached. Encapsulation of ε-viniferin drastically increased its water solubility by more than 5 orders to reach 17.4 g L-1 and provided protection against its UV-induced isomerization. While ε-viniferin was shown to be significantly toxic to Caco-2 intestinal-like cells for concentrations higher than 25 μM, once encapsulated in MLLs, those cells did not experience any mortality even for the highest tested stilbene concentration (100 μM) as revealed by red neutral assay.
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Affiliation(s)
- Arnaud Courtois
- Université de Bordeaux, UR Oenologie, MIB, EA 4577, USC 1366 INRA, 33882 Villenave d'Ornon, France
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Vaucel J, Dondia D, Genillier N, Nardon A, Courtois A, Barandiaran P, Labadie M. Severe allergic skin reaction after use of red tiger balm. Toxicologie Analytique et Clinique 2019. [DOI: 10.1016/j.toxac.2019.03.108] [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: 11/27/2022]
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Labadie M, Rebouissoux L, Viala J, Nisse P, Vodovar D, Courtois A, Gallart JC, Glaizal M, Denoyelle F, Franchitto N, Manel J, Lamireau T, Puskarczyk E. Regarding pH-neutralizing esophageal irrigations as a novel mitigation strategy for button battery injury. Laryngoscope 2019; 129:E123-E124. [PMID: 30618049 DOI: 10.1002/lary.27728] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Accepted: 10/10/2018] [Indexed: 11/11/2022]
Affiliation(s)
- Magali Labadie
- Centre Hospitalier Universitaire de Bordeaux, Centre Antipoison, Bordeaux, Aquitaine, France
| | - Laurent Rebouissoux
- Centre Hospitalier Universitaire de Bordeaux, Gastroentérologie et nutrition pédiatrique, Bordeaux, Aquitaine, France
| | - Jerome Viala
- Hopital Universitaire Robert-Debre, Gastroentérologie, Paris, Île-de-France, France
| | - Patrick Nisse
- Centre hospitalier Universitaire, Centre Antipoison, Lille, France
| | - Dominique Vodovar
- Groupe hospitalier Lariboisiere Fernand-Widal, Centre Antipoison de Paris-Fédération de Toxicologie, Paris, Île-de-France, France.,INSERM UMRS 1144, Paris, France
| | - Arnaud Courtois
- Centre Hospitalier Universitaire de Bordeaux, Centre Antipoison, Bordeaux, Aquitaine, France.,Universite de Bordeaux College Sciences de la Sante, UFR Sciences pharmaceutiques: Laboratoire de Toxicologie, Bordeaux, Aquitaine, France
| | - Jean-Christophe Gallart
- Centre Hospitalier Universitaire de Toulouse, Centre Antipoison-SAMU 31 Toulouse, Midi-Pyrénées, France
| | - Mathieu Glaizal
- Centre Hospitalier Universitaire de Marseille, Centre Antipoison, Marseille, France
| | - Françoise Denoyelle
- Hopital universitaire Necker-Enfants malades, Service d'ORL, pédiatrique et de chirurgie cervicofaciale, centre de références des malformations ORL rares, Paris, Île-de-France, France.,Universite Paris Descartes, Paris, Île-de-France, France
| | - Nicolas Franchitto
- Centre Hospitalier Universitaire de Toulouse, Centre Antipoison-SAMU 31 Toulouse, Midi-Pyrénées, France.,Universite Toulouse III Paul Sabatier, INSERM UMR 1027, Toulouse, Midi-Pyrénées, France
| | - Jacques Manel
- Centre Hospitalier Universitaire de Nancy, Centre Antipoison, Nancy, Lorraine, France
| | - Thierry Lamireau
- Centre Hospitalier Universitaire de Bordeaux, Gastroentérologie et nutrition pédiatrique Bordeaux, Aquitaine, France.,Universite de Bordeaux College Sciences de la Sante, INSERM U897, Epidemiology of nutrition, ISPED, Bordeaux, Aquitaine, France
| | - Emmanuel Puskarczyk
- Centre Hospitalier Universitaire de Nancy, Centre Antipoison, Nancy, Lorraine, France
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Daveluy A, Capaldo L, Richeval C, Regueme S, Bragança C, Courtois A, Partrat J, Titier K, Castaing N, Miremont-Salamé G, Allorge D, Gaulier JM, Labadie M. Projet Musitox® : consommation de substances psychoactives lors d’un festival de musique en Aquitaine en 2017. Therapie 2018. [DOI: 10.1016/j.therap.2018.09.032] [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: 10/27/2022]
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Capaldo L, Courtois A, Giraud F, Blanc-Brisset I, Labadie M. Intoxication par le laurier rose en France : étude rétrospective d’après les données des centres antipoison entre 1999 et 2016. Toxicologie Analytique et Clinique 2018. [DOI: 10.1016/j.toxac.2018.07.101] [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: 10/28/2022]
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Bruneau C, Bretaudeau X, Moreau P, Courtois A, Delcourt N, Villa A, Cézard C, Evrard M, Schmitt C, Ihadadene N, Deguigne M, Le Roux G. Les sclérodermes : qu’en est-il de leur toxicité ? Toxicologie Analytique et Clinique 2018. [DOI: 10.1016/j.toxac.2018.07.040] [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: 11/27/2022]
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Daveluy A, Capaldo L, Richeval C, Regueme SC, Bragança C, Courtois A, Partrat J, Titier K, Castaing N, Miremont-Salamé G, Allorge D, Gaulier JM, Labadie M. Projet Musitox ® : consommation de substances psychoactives lors d’un festival de musique en Aquitaine en 2017. Toxicologie Analytique et Clinique 2018. [DOI: 10.1016/j.toxac.2018.04.094] [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: 11/27/2022]
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Bataille C, Capaldo L, Courtois A, Seguy B, Lotiron C, Labadie M. Toxic thrombocytopenia during Nerium oleander poisoning. Clin Toxicol (Phila) 2018; 56:1170-1171. [PMID: 29764236 DOI: 10.1080/15563650.2018.1473582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Affiliation(s)
- Camille Bataille
- a Poison Control Center of Aquitaine Poitou Charente , University Hospital of Pellegrin , Bordeaux , France
| | - Lise Capaldo
- a Poison Control Center of Aquitaine Poitou Charente , University Hospital of Pellegrin , Bordeaux , France
| | - Arnaud Courtois
- b Bordeaux University , Bordeaux , France.,c Oenology Research Unit; EA 4577, USC 1366 INRA, Institute for Wine and Vine Sciences , Villenave d'Ornon , France
| | - Benjamin Seguy
- d Cardiology Unit, University Hospital of Haut Lévêque , Pessac , France
| | - Clémence Lotiron
- e Medical Device Vigilance Unit, University Hospital of Pellegrin , Bordeaux , France
| | - Magali Labadie
- a Poison Control Center of Aquitaine Poitou Charente , University Hospital of Pellegrin , Bordeaux , France
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Deweirdt J, Quignard JF, Crobeddu B, Baeza-Squiban A, Sciare J, Courtois A, Lacomme S, Gontier E, Muller B, Savineau JP, Marthan R, Guibert C, Baudrimont I. Involvement of oxidative stress and calcium signaling in airborne particulate matter - induced damages in human pulmonary artery endothelial cells. Toxicol In Vitro 2017; 45:340-350. [PMID: 28688989 DOI: 10.1016/j.tiv.2017.07.001] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Revised: 06/19/2017] [Accepted: 07/04/2017] [Indexed: 11/30/2022]
Abstract
Recent studies have revealed that particulate matter (PM) exert deleterious effects on vascular function. Pulmonary artery endothelial cells (HPAEC), which are involved in the vasomotricity regulation, can be a direct target of inhaled particles. Modifications in calcium homeostasis and oxidative stress are critical events involved in the physiopathology of vascular diseases. The objectives of this study were to assess the effects of PM2.5 on oxidative stress and calcium signaling in HPAEC. Different endpoints were studied, (i) intrinsic and intracellular production of reactive oxygen species (ROS) by the H2DCF-DA probe, (ii) intrinsic, intracellular and mitochondrial production of superoxide anion (O2-) by electronic paramagnetic resonance spectroscopy and MitoSOX probe, (iii) reactive nitrosative species (RNS) production by Griess reaction, and (vi) calcium signaling by the Fluo-4 probe. In acellular conditions, PM2.5 leads to an intrinsic free radical production (ROS, O2-) and a 4h-exposure to PM2.5 (5-15μg/cm2), induced, in HPAEC, an increase of RNS, of global ROS and of cytoplasmic and mitochondrial O2- levels. The basal intracellular calcium ion level [Ca2+]i was also increased after 4h-exposure to PM2.5 and a pre-treatment with superoxide dismutase and catalase significantly reduced this response. This study provides evidence that the alteration of intracellular calcium homeostasis induced by PM2.5 is closely correlated to an increase of oxidative stress.
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Affiliation(s)
- J Deweirdt
- Université de Bordeaux, 146, rue Léo Saignat, Bordeaux F-33076, France; Inserm U1045, Centre de Recherche Cardio-Thoracique de Bordeaux, 146, rue Léo Saignat, Bordeaux F-33076, France
| | - J F Quignard
- Université de Bordeaux, 146, rue Léo Saignat, Bordeaux F-33076, France; Inserm U1045, Centre de Recherche Cardio-Thoracique de Bordeaux, 146, rue Léo Saignat, Bordeaux F-33076, France
| | - B Crobeddu
- Université Paris Diderot, Sorbonne Paris Cité, Unit of Functional and Adaptive Biology (BFA) UMR 8251 CNRS, F-75205 Paris, France
| | - A Baeza-Squiban
- Université Paris Diderot, Sorbonne Paris Cité, Unit of Functional and Adaptive Biology (BFA) UMR 8251 CNRS, F-75205 Paris, France
| | - J Sciare
- Laboratoire des Sciences du Climat et de l'Environnement (LSCE), CEA-CNRS, Centre de Saclay, F-91190 Gif sur Yvette, France; Energy Environment Water Research Center, The Cyprus Institute, 2121 Nicosia, Cyprus
| | - A Courtois
- Université de Bordeaux, 146, rue Léo Saignat, Bordeaux F-33076, France; Inserm U1045, Centre de Recherche Cardio-Thoracique de Bordeaux, 146, rue Léo Saignat, Bordeaux F-33076, France; Centre Hospitalier Universitaire de Bordeaux, Centre AntiPoison et de Toxicovigilance d'Aquitaine et de Poitou Charente et Service d'Exploration Fonctionnelle Respiratoire, Place Amélie Raba Léon, Bordeaux F-33076, France
| | - S Lacomme
- Université de Bordeaux, 146, rue Léo Saignat, Bordeaux F-33076, France; Bordeaux Imaging Center UMS 3420 CNRS - US4 INSERM, Pôle d'imagerie électronique, 146, rue Léo Saignat, Bordeaux F-33076, France
| | - E Gontier
- Université de Bordeaux, 146, rue Léo Saignat, Bordeaux F-33076, France; Bordeaux Imaging Center UMS 3420 CNRS - US4 INSERM, Pôle d'imagerie électronique, 146, rue Léo Saignat, Bordeaux F-33076, France
| | - B Muller
- Université de Bordeaux, 146, rue Léo Saignat, Bordeaux F-33076, France; Inserm U1045, Centre de Recherche Cardio-Thoracique de Bordeaux, 146, rue Léo Saignat, Bordeaux F-33076, France
| | - J P Savineau
- Université de Bordeaux, 146, rue Léo Saignat, Bordeaux F-33076, France; Inserm U1045, Centre de Recherche Cardio-Thoracique de Bordeaux, 146, rue Léo Saignat, Bordeaux F-33076, France
| | - R Marthan
- Université de Bordeaux, 146, rue Léo Saignat, Bordeaux F-33076, France; Inserm U1045, Centre de Recherche Cardio-Thoracique de Bordeaux, 146, rue Léo Saignat, Bordeaux F-33076, France; Centre Hospitalier Universitaire de Bordeaux, Centre AntiPoison et de Toxicovigilance d'Aquitaine et de Poitou Charente et Service d'Exploration Fonctionnelle Respiratoire, Place Amélie Raba Léon, Bordeaux F-33076, France
| | - C Guibert
- Inserm U1045, Centre de Recherche Cardio-Thoracique de Bordeaux, 146, rue Léo Saignat, Bordeaux F-33076, France
| | - I Baudrimont
- Université de Bordeaux, 146, rue Léo Saignat, Bordeaux F-33076, France; Inserm U1045, Centre de Recherche Cardio-Thoracique de Bordeaux, 146, rue Léo Saignat, Bordeaux F-33076, France.
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Courtois A, Jourdes M, Dupin A, Lapèze C, Renouf E, Biais B, Teissedre PL, Mérillon JM, Richard T, Krisa S. In Vitro Glucuronidation and Sulfation of ε-Viniferin, a Resveratrol Dimer, in Humans and Rats. Molecules 2017; 22:molecules22050733. [PMID: 28467376 PMCID: PMC6154661 DOI: 10.3390/molecules22050733] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Revised: 04/21/2017] [Accepted: 04/27/2017] [Indexed: 12/20/2022] Open
Abstract
ε-Viniferin is a resveratrol dimer that possesses antioxidant or anti-inflammatory activities. However little is known about the metabolism of this oligostilbene. This study was thus undertaken as a first approach to identify and characterize the metabolites of ε-viniferin and to describe the kinetic profile of their appearance in humans and rats. The glucuronides and sulfates of ε-viniferin were first obtained by chemical hemi-synthesis and were fully characterized by UPLC-MS and NMR spectroscopy. Then, ε-viniferin was incubated with human or rat S9 liver fractions that led to the formation of four glucuronoconjugates and four sulfoconjugates. In both species, ε-viniferin was subjected to an intense metabolism as 70 to 80% of the molecule was converted to glucuronides and sulfates. In humans, the hepatic clearance of ε-viniferin (Vmax/Km) for glucuronidation and sulfation were 4.98 and 6.35 µL/min/mg protein, respectively, whereas, in rats, the hepatic clearance for glucuronidation was 20.08 vs. 2.59 µL/min/mg protein for sulfation. In humans, three major metabolites were observed: two glucuronides and one sulfate. By contrast, only one major glucuronide was observed in rats. This strong hepatic clearance of ε-viniferin in human and rat could explain its poor bioavailability and could help to characterize its active metabolites.
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Affiliation(s)
- Arnaud Courtois
- Unité de Recherche Œnologie, Molécules d'Intérêt Biologique, EA 4577, USC 1366 INRA, Bordeaux INP, Institut des Sciences de la Vigne et du Vin, 210 Chemin de Leysottes, 33882 Villenave d'Ornon, France.
- Université de Bordeaux, 146, rue Léo Saignat, 33076 Bordeaux, France.
- Centre Antipoison et de Toxicovigilance d'Aquitaine Poitou-Charentes, Bâtiment UNDR, CHU de Bordeaux, Place Amélie Raba Léon, 33076 Bordeaux, France.
| | - Michael Jourdes
- Unité de Recherche Œnologie, Molécules d'Intérêt Biologique, EA 4577, USC 1366 INRA, Bordeaux INP, Institut des Sciences de la Vigne et du Vin, 210 Chemin de Leysottes, 33882 Villenave d'Ornon, France.
- Université de Bordeaux, 146, rue Léo Saignat, 33076 Bordeaux, France.
| | - Adeline Dupin
- Unité de Recherche Œnologie, Molécules d'Intérêt Biologique, EA 4577, USC 1366 INRA, Bordeaux INP, Institut des Sciences de la Vigne et du Vin, 210 Chemin de Leysottes, 33882 Villenave d'Ornon, France.
- Université de Bordeaux, 146, rue Léo Saignat, 33076 Bordeaux, France.
| | - Caroline Lapèze
- Unité de Recherche Œnologie, Molécules d'Intérêt Biologique, EA 4577, USC 1366 INRA, Bordeaux INP, Institut des Sciences de la Vigne et du Vin, 210 Chemin de Leysottes, 33882 Villenave d'Ornon, France.
- Université de Bordeaux, 146, rue Léo Saignat, 33076 Bordeaux, France.
| | - Elodie Renouf
- Unité de Recherche Œnologie, Molécules d'Intérêt Biologique, EA 4577, USC 1366 INRA, Bordeaux INP, Institut des Sciences de la Vigne et du Vin, 210 Chemin de Leysottes, 33882 Villenave d'Ornon, France.
- Polyphénols Biotech, Université de Bordeaux, Institut des Sciences de la Vigne et du Vin, 210 Chemin de Leysottes, 33882 Villenave d'Ornon, France.
| | - Benoît Biais
- Unité de Recherche Œnologie, Molécules d'Intérêt Biologique, EA 4577, USC 1366 INRA, Bordeaux INP, Institut des Sciences de la Vigne et du Vin, 210 Chemin de Leysottes, 33882 Villenave d'Ornon, France.
| | - Pierre-Louis Teissedre
- Unité de Recherche Œnologie, Molécules d'Intérêt Biologique, EA 4577, USC 1366 INRA, Bordeaux INP, Institut des Sciences de la Vigne et du Vin, 210 Chemin de Leysottes, 33882 Villenave d'Ornon, France.
- Université de Bordeaux, 146, rue Léo Saignat, 33076 Bordeaux, France.
| | - Jean-Michel Mérillon
- Unité de Recherche Œnologie, Molécules d'Intérêt Biologique, EA 4577, USC 1366 INRA, Bordeaux INP, Institut des Sciences de la Vigne et du Vin, 210 Chemin de Leysottes, 33882 Villenave d'Ornon, France.
- Université de Bordeaux, 146, rue Léo Saignat, 33076 Bordeaux, France.
- Polyphénols Biotech, Université de Bordeaux, Institut des Sciences de la Vigne et du Vin, 210 Chemin de Leysottes, 33882 Villenave d'Ornon, France.
| | - Tristan Richard
- Unité de Recherche Œnologie, Molécules d'Intérêt Biologique, EA 4577, USC 1366 INRA, Bordeaux INP, Institut des Sciences de la Vigne et du Vin, 210 Chemin de Leysottes, 33882 Villenave d'Ornon, France.
- Université de Bordeaux, 146, rue Léo Saignat, 33076 Bordeaux, France.
| | - Stéphanie Krisa
- Unité de Recherche Œnologie, Molécules d'Intérêt Biologique, EA 4577, USC 1366 INRA, Bordeaux INP, Institut des Sciences de la Vigne et du Vin, 210 Chemin de Leysottes, 33882 Villenave d'Ornon, France.
- Université de Bordeaux, 146, rue Léo Saignat, 33076 Bordeaux, France.
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Labadie M, Capaldo L, Courtois A, Goyffon M, Rollard C, Moltini A, Penouil F. Intoxication par ingestion de chenilles processionnaires du pin ( Thaumetopœa pityocampa ) : à propos d’un cas. Toxicologie Analytique et Clinique 2017. [DOI: 10.1016/j.toxac.2017.03.043] [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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Bourgeois N, Bruneau C, Courtois A, Nisse P, Sapori JM, de Haro L, Puskarczyk E, Tournoud C, Franchitto N, Villa AF. La Mycoliste : un outil d’aide à l’identification des champignons impliqués dans les intoxications humaines en France. Bilan de fonctionnement 2014–2015. Toxicologie Analytique et Clinique 2017. [DOI: 10.1016/j.toxac.2017.03.037] [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: 10/19/2022]
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Gilbert G, Courtois A, Dubois M, Cussac LA, Ducret T, Lory P, Marthan R, Savineau JP, Quignard JF. T-type voltage gated calcium channels are involved in endothelium-dependent relaxation of mice pulmonary artery. Biochem Pharmacol 2017; 138:61-72. [PMID: 28438566 DOI: 10.1016/j.bcp.2017.04.021] [Citation(s) in RCA: 14] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Accepted: 04/18/2017] [Indexed: 10/19/2022]
Abstract
In pulmonary arterial endothelial cells, Ca2+ channels and intracellular Ca2+ concentration ([Ca2+]i) control the release of vasorelaxant factors such as nitric oxide and are involved in the regulation of pulmonary arterial blood pressure. The present study was undertaken to investigate the implication of T-type voltage-gated Ca2+ channels (T-VGCCs, Cav3.1 channel) in the endothelium-dependent relaxation of intrapulmonary arteries. Relaxation was quantified by means of a myograph in wild type and Cav3.1-/- mice. Endothelial [Ca2+]i and NO production were measured, on whole vessels, with the fluo-4 and DAF-fm probes. Acetylcholine (ACh) induced a nitric oxide- and endothelium-dependent relaxation that was significantly reduced in pulmonary arteries from Cav3.1-/- compared to wild type mice as well as in the presence of T-VGCC inhibitors (NNC 55-0396 or mibefradil). ACh also increased endothelial [Ca2+]i and NO production that were both reduced in Cav3.1-/- compared to wild type mice or in the presence of T-VGCC inhibitors. Immunofluorescence labeling revealed the presence of Cav3.1 channels in endothelial cells that co-localized with endothelial nitric oxide synthase in arteries from wild type mice. TRPV4-, beta2 adrenergic- and nitric oxide donors (SNP)-mediated relaxation were not altered in Cav3.1-/- compared to wild type mice. Finally, in chronically hypoxic mice, a model of pulmonary hypertension, ACh relaxation was reduced but still depended on Cav3.1 channels activity. The present study thus demonstrates that T-VGCCs, mainly Cav3.1 channel, contribute to intrapulmonary vascular reactivity in mice by controlling endothelial [Ca2+]i and ACh-mediated relaxation.
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Affiliation(s)
- Guillaume Gilbert
- Univ Bordeaux, Centre de Recherche Cardio-Thoracique de Bordeaux, Bordeaux F-33000, France; Inserm, Centre de Recherche Cardio-Thoracique de Bordeaux, U1045, Bordeaux F-33000, France
| | - Arnaud Courtois
- Univ Bordeaux, Centre de Recherche Cardio-Thoracique de Bordeaux, Bordeaux F-33000, France; Inserm, Centre de Recherche Cardio-Thoracique de Bordeaux, U1045, Bordeaux F-33000, France
| | - Mathilde Dubois
- Univ Bordeaux, Centre de Recherche Cardio-Thoracique de Bordeaux, Bordeaux F-33000, France; Inserm, Centre de Recherche Cardio-Thoracique de Bordeaux, U1045, Bordeaux F-33000, France
| | - Laure-Anne Cussac
- Univ Bordeaux, Centre de Recherche Cardio-Thoracique de Bordeaux, Bordeaux F-33000, France; Inserm, Centre de Recherche Cardio-Thoracique de Bordeaux, U1045, Bordeaux F-33000, France
| | - Thomas Ducret
- Univ Bordeaux, Centre de Recherche Cardio-Thoracique de Bordeaux, Bordeaux F-33000, France; Inserm, Centre de Recherche Cardio-Thoracique de Bordeaux, U1045, Bordeaux F-33000, France
| | - Philippe Lory
- CNRS, UMR-5203, Institut de Génomique Fonctionnelle, Montpellier F-34094, France; Inserm U1191, Montpellier F-34094, France; Université de Montpellier, Montpellier F-34094, France; LabEx 'Ion Channel Science and Therapeutics', Montpellier F-34094, France
| | - Roger Marthan
- Univ Bordeaux, Centre de Recherche Cardio-Thoracique de Bordeaux, Bordeaux F-33000, France; Inserm, Centre de Recherche Cardio-Thoracique de Bordeaux, U1045, Bordeaux F-33000, France; CHU de Bordeaux, Bordeaux F-33000, France
| | - Jean-Pierre Savineau
- Univ Bordeaux, Centre de Recherche Cardio-Thoracique de Bordeaux, Bordeaux F-33000, France; Inserm, Centre de Recherche Cardio-Thoracique de Bordeaux, U1045, Bordeaux F-33000, France
| | - Jean-François Quignard
- Univ Bordeaux, Centre de Recherche Cardio-Thoracique de Bordeaux, Bordeaux F-33000, France; Inserm, Centre de Recherche Cardio-Thoracique de Bordeaux, U1045, Bordeaux F-33000, France.
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Léonard M, Courtois A, Defraigne JO, Sakalihasan N. [Isolated spontaneous dissection of the superior mesenteric artery]. Rev Med Liege 2017; 72:175-180. [PMID: 28471548] [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] [Indexed: 06/07/2023]
Abstract
We report the case of a 57-year old man suffering from acute abdominal cramps. Abdominal computed tomography (CT) scanner revealed an isolated dissection of the superior mesenteric artery. The pain decreased within a few days under conservative treatment and monitoring by angioscans showed a stabilization of the dissection. This clinical case report is accompanied by a literature review on this rare pathology.
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Affiliation(s)
| | - A Courtois
- Service de Chirurgie Cardiovasculaire et Thoracique, CHU Liège, Site Sart Tilman, Liège, Belgique
| | - J-O Defraigne
- Service de Chirurgie Cardiovasculaire et Thoracique, CHU Liège, Site Sart Tilman, Liège, Belgique
| | - N Sakalihasan
- Service de Chirurgie Cardiovasculaire et Thoracique, CHU Liège, Site Sart Tilman, Liège, Belgique
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43
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Coste F, Guibert C, Magat J, Abell E, Vaillant F, Dubois M, Courtois A, Diolez P, Quesson B, Marthan R, Savineau JP, Muller B, Freund-Michel V. Chronic hypoxia aggravates monocrotaline-induced pulmonary arterial hypertension: a rodent relevant model to the human severe form of the disease. Respir Res 2017; 18:47. [PMID: 28288643 PMCID: PMC5348907 DOI: 10.1186/s12931-017-0533-x] [Citation(s) in RCA: 7] [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: 07/01/2016] [Accepted: 03/08/2017] [Indexed: 12/11/2022] Open
Abstract
Pulmonary arterial hypertension (PAH) is a severe form of pulmonary hypertension that combines multiple alterations of pulmonary arteries, including, in particular, thrombotic and plexiform lesions. Multiple-pathological-insult animal models, developed to more closely mimic this human severe PAH form, often require complex and/or long experimental procedures while not displaying the entire panel of characteristic lesions observed in the human disease. In this study, we further characterized a rat model of severe PAH generated by combining a single injection of monocrotaline with 4 weeks exposure to chronic hypoxia. This model displays increased pulmonary arterial pressure, right heart altered function and remodeling, pulmonary arterial inflammation, hyperresponsiveness and remodeling. In particular, severe pulmonary arteriopathy was observed, with thrombotic, neointimal and plexiform-like lesions similar to those observed in human severe PAH. This model, based on the combination of two conventional procedures, may therefore be valuable to further understand the pathophysiology of severe PAH and identify new potential therapeutic targets in this disease.
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Affiliation(s)
- Florence Coste
- INSERM, Centre de recherche Cardio-Thoracique de Bordeaux U1045, F-33000, Bordeaux, France. .,Univ. Bordeaux, Centre de recherche Cardio-Thoracique de Bordeaux U1045, F-33000, Bordeaux, France. .,CHU de Bordeaux, F-33000, Bordeaux, France.
| | - Christelle Guibert
- INSERM, Centre de recherche Cardio-Thoracique de Bordeaux U1045, F-33000, Bordeaux, France.,Univ. Bordeaux, Centre de recherche Cardio-Thoracique de Bordeaux U1045, F-33000, Bordeaux, France
| | - Julie Magat
- INSERM, Centre de recherche Cardio-Thoracique de Bordeaux U1045, F-33000, Bordeaux, France.,Univ. Bordeaux, Centre de recherche Cardio-Thoracique de Bordeaux U1045, F-33000, Bordeaux, France.,IHU Liryc, Electrophysiology and Heart Modeling Institute, fondation Bordeaux Université, F-33600, Pessac, Bordeaux, France
| | - Emma Abell
- INSERM, Centre de recherche Cardio-Thoracique de Bordeaux U1045, F-33000, Bordeaux, France.,Univ. Bordeaux, Centre de recherche Cardio-Thoracique de Bordeaux U1045, F-33000, Bordeaux, France.,IHU Liryc, Electrophysiology and Heart Modeling Institute, fondation Bordeaux Université, F-33600, Pessac, Bordeaux, France
| | - Fanny Vaillant
- INSERM, Centre de recherche Cardio-Thoracique de Bordeaux U1045, F-33000, Bordeaux, France.,Univ. Bordeaux, Centre de recherche Cardio-Thoracique de Bordeaux U1045, F-33000, Bordeaux, France.,IHU Liryc, Electrophysiology and Heart Modeling Institute, fondation Bordeaux Université, F-33600, Pessac, Bordeaux, France
| | - Mathilde Dubois
- INSERM, Centre de recherche Cardio-Thoracique de Bordeaux U1045, F-33000, Bordeaux, France.,Univ. Bordeaux, Centre de recherche Cardio-Thoracique de Bordeaux U1045, F-33000, Bordeaux, France
| | - Arnaud Courtois
- INSERM, Centre de recherche Cardio-Thoracique de Bordeaux U1045, F-33000, Bordeaux, France.,Univ. Bordeaux, Centre de recherche Cardio-Thoracique de Bordeaux U1045, F-33000, Bordeaux, France
| | - Philippe Diolez
- INSERM, Centre de recherche Cardio-Thoracique de Bordeaux U1045, F-33000, Bordeaux, France.,Univ. Bordeaux, Centre de recherche Cardio-Thoracique de Bordeaux U1045, F-33000, Bordeaux, France.,IHU Liryc, Electrophysiology and Heart Modeling Institute, fondation Bordeaux Université, F-33600, Pessac, Bordeaux, France
| | - Bruno Quesson
- INSERM, Centre de recherche Cardio-Thoracique de Bordeaux U1045, F-33000, Bordeaux, France.,Univ. Bordeaux, Centre de recherche Cardio-Thoracique de Bordeaux U1045, F-33000, Bordeaux, France.,IHU Liryc, Electrophysiology and Heart Modeling Institute, fondation Bordeaux Université, F-33600, Pessac, Bordeaux, France
| | - Roger Marthan
- INSERM, Centre de recherche Cardio-Thoracique de Bordeaux U1045, F-33000, Bordeaux, France.,Univ. Bordeaux, Centre de recherche Cardio-Thoracique de Bordeaux U1045, F-33000, Bordeaux, France.,CHU de Bordeaux, F-33000, Bordeaux, France
| | - Jean-Pierre Savineau
- INSERM, Centre de recherche Cardio-Thoracique de Bordeaux U1045, F-33000, Bordeaux, France.,Univ. Bordeaux, Centre de recherche Cardio-Thoracique de Bordeaux U1045, F-33000, Bordeaux, France
| | - Bernard Muller
- INSERM, Centre de recherche Cardio-Thoracique de Bordeaux U1045, F-33000, Bordeaux, France.,Univ. Bordeaux, Centre de recherche Cardio-Thoracique de Bordeaux U1045, F-33000, Bordeaux, France
| | - Véronique Freund-Michel
- INSERM, Centre de recherche Cardio-Thoracique de Bordeaux U1045, F-33000, Bordeaux, France.,Univ. Bordeaux, Centre de recherche Cardio-Thoracique de Bordeaux U1045, F-33000, Bordeaux, France
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44
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Dumas de la Roque E, Smeralda G, Quignard JF, Freund-Michel V, Courtois A, Marthan R, Muller B, Guibert C, Dubois M. Altered vasoreactivity in neonatal rats with pulmonary hypertension associated with bronchopulmonary dysplasia: Implication of both eNOS phosphorylation and calcium signaling. PLoS One 2017; 12:e0173044. [PMID: 28235094 PMCID: PMC5325597 DOI: 10.1371/journal.pone.0173044] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Accepted: 02/14/2017] [Indexed: 12/24/2022] Open
Abstract
Bronchopulmonary dysplasia (BPD) consists of an arrest of pulmonary vascular and alveolar growth, with persistent hypoplasia of the pulmonary microvasculature and alveolar simplification. In 25 to 40% of the cases, BPD is complicated by pulmonary hypertension (BPD-PH) that significantly increases the risk of morbidity. In vivo studies suggest that increased pulmonary vascular tone could contribute to late PH in BPD. Nevertheless, an alteration in vasoreactivity as well as the mechanisms involved remain to be confirmed. The purpose of this study was thus to assess changes in pulmonary vascular reactivity in a murine model of BPD-PH. Newborn Wistar rats were exposed to either room air (normoxia) or 90% O2 (hyperoxia) for 14 days. Exposure to hyperoxia induced the well-known features of BPD-PH such as elevated right ventricular systolic pressure, right ventricular hypertrophy, pulmonary vascular remodeling and decreased pulmonary vascular density. Intrapulmonary arteries from hyperoxic pups showed decreased endothelium-dependent relaxation to acetylcholine without any alteration of relaxation to the NO-donor sodium nitroprusside. This functional alteration was associated with a decrease of lung eNOS phosphorylation at the Ser1177 activating site. In pups exposed to hyperoxia, serotonin and phenylephrine induced exacerbated contractile responses of intrapulmonary arteries as well as intracellular calcium response in pulmonary arterial smooth muscle cells (PASMC). Moreover, the amplitude of the store-operated Ca2+ entry (SOCE), induced by store depletion using a SERCA inhibitor, was significantly greater in PASMC from hyperoxic pups. Altogether, hyperoxia-induced BPD-PH alters the pulmonary arterial reactivity, with effects on both endothelial and smooth muscle functions. Reduced activating eNOS phosphorylation and enhanced Ca2+ signaling likely account for alterations of pulmonary arterial reactivity.
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MESH Headings
- Acetylcholine/pharmacology
- Animals
- Animals, Newborn
- Bronchopulmonary Dysplasia/physiopathology
- Calcium Signaling
- Cells, Cultured
- Female
- Hyperoxia/physiopathology
- Hypertension, Pulmonary/physiopathology
- Lung/blood supply
- Lung/enzymology
- Muscle Contraction/drug effects
- Muscle, Smooth, Vascular/metabolism
- Muscle, Smooth, Vascular/pathology
- Muscle, Smooth, Vascular/physiopathology
- Myocytes, Smooth Muscle/metabolism
- Nitric Oxide Synthase Type III/metabolism
- Phosphorylation
- Protein Processing, Post-Translational
- Pulmonary Artery/metabolism
- Pulmonary Artery/pathology
- Pulmonary Artery/physiopathology
- Rats, Wistar
- Vasodilation
- Vasodilator Agents/pharmacology
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Affiliation(s)
- Eric Dumas de la Roque
- Univ. Bordeaux, Centre de recherche Cardio-Thoracique de Bordeaux, U1045, Bordeaux, France
- INSERM, Centre de recherche Cardio-Thoracique de Bordeaux, U1045, Bordeaux, France
- CHU de Bordeaux, Services de Réanimation Néonatale et Exploration Fonctionnelle Respiratoire, Centre d’Investigation Clinique (CIC 0005), Bordeaux, France
| | - Gwladys Smeralda
- Univ. Bordeaux, Centre de recherche Cardio-Thoracique de Bordeaux, U1045, Bordeaux, France
- INSERM, Centre de recherche Cardio-Thoracique de Bordeaux, U1045, Bordeaux, France
| | - Jean-François Quignard
- Univ. Bordeaux, Centre de recherche Cardio-Thoracique de Bordeaux, U1045, Bordeaux, France
- INSERM, Centre de recherche Cardio-Thoracique de Bordeaux, U1045, Bordeaux, France
| | - Véronique Freund-Michel
- Univ. Bordeaux, Centre de recherche Cardio-Thoracique de Bordeaux, U1045, Bordeaux, France
- INSERM, Centre de recherche Cardio-Thoracique de Bordeaux, U1045, Bordeaux, France
| | - Arnaud Courtois
- Univ. Bordeaux, Centre de recherche Cardio-Thoracique de Bordeaux, U1045, Bordeaux, France
- INSERM, Centre de recherche Cardio-Thoracique de Bordeaux, U1045, Bordeaux, France
| | - Roger Marthan
- Univ. Bordeaux, Centre de recherche Cardio-Thoracique de Bordeaux, U1045, Bordeaux, France
- INSERM, Centre de recherche Cardio-Thoracique de Bordeaux, U1045, Bordeaux, France
- CHU de Bordeaux, Services de Réanimation Néonatale et Exploration Fonctionnelle Respiratoire, Centre d’Investigation Clinique (CIC 0005), Bordeaux, France
| | - Bernard Muller
- Univ. Bordeaux, Centre de recherche Cardio-Thoracique de Bordeaux, U1045, Bordeaux, France
- INSERM, Centre de recherche Cardio-Thoracique de Bordeaux, U1045, Bordeaux, France
| | - Christelle Guibert
- Univ. Bordeaux, Centre de recherche Cardio-Thoracique de Bordeaux, U1045, Bordeaux, France
- INSERM, Centre de recherche Cardio-Thoracique de Bordeaux, U1045, Bordeaux, France
| | - Mathilde Dubois
- Univ. Bordeaux, Centre de recherche Cardio-Thoracique de Bordeaux, U1045, Bordeaux, France
- INSERM, Centre de recherche Cardio-Thoracique de Bordeaux, U1045, Bordeaux, France
- * E-mail:
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45
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Labadie M, Capaldo L, Richeval C, Titier K, Blondet R, Courtois A, Castaing N, Allorge D, Gaulier JM, Lebeau A, Fabre J, Daveluy A. Consommation de substances psychoactives pendant les « feria » du Sud-Ouest : peut-on avancer sur la connaissance des substances en cause ? Therapie 2017. [DOI: 10.1016/j.therap.2016.11.015] [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: 11/24/2022]
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46
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Daveluy A, Labadie M, Titier K, Courtois A, Penouil F, Castaing N, Haramburu F, Faure I, Cazanave C, Delile JM, Latour V, Valdenaire G. Poisoning by synthetic cathinones: Consumption behaviour and clinical description from 11 cases recorded by the Addictovigilance Centre of Bordeaux. Toxicologie Analytique et Clinique 2017. [DOI: 10.1016/j.toxac.2016.11.005] [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: 10/20/2022]
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47
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Dubes V, Parpaite T, Ducret T, Quignard JF, Mornet S, Reinhardt N, Baudrimont I, Dubois M, Freund-Michel V, Marthan R, Muller B, Savineau JP, Courtois A. Calcium signalling induced by in vitro exposure to silicium dioxide nanoparticles in rat pulmonary artery smooth muscle cells. Toxicology 2016; 375:37-47. [PMID: 27939335 DOI: 10.1016/j.tox.2016.12.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Revised: 12/06/2016] [Accepted: 12/06/2016] [Indexed: 11/18/2022]
Abstract
The development and use of nanomaterials, especially engineered nanoparticles (NP), is expected to provide many benefits. But at the same time the development of such materials is also feared because of their potential human health risks. Indeed, NP display some characteristics similar to ultrafine environmental particles which are known to exert deleterious cardiovascular effects including pro-hypertensive ones. In this context, the effect of NP on calcium signalling, whose deregulation is often involved in hypertensive diseases, remain poorly described. We thus assessed the effect of SiO2 NP on calcium signalling by fluorescence imaging and on the proliferation response in rat pulmonary artery smooth muscle cells (PASMC). In PASMC, acute exposure to SiO2 NP, from 1 to 500μg/mL, produced an increase of the [Ca2+]i. In addition, when PASMC were exposed to NP at 200μg/mL, a proliferative response was observed. This calcium increase was even greater in PASMC isolated from rats suffering from pulmonary hypertension. The absence of extracellular calcium, addition of diltiazem or nicardipine (L-type voltage-operated calcium channel inhibitors both used at 10μM), and addition of capsazepine or HC067047 (TRPV1 and TRPV4 inhibitors used at 10μM and 5μM, respectively) significantly reduced this response. Moreover, this response was also inhibited by thapsigargin (SERCA inhibitor, 1μM), ryanodine (100μM) and dantrolene (ryanodine receptor antagonists, 10μM) but not by xestospongin C (IP3 receptor antagonist, 10μM). Thus, NP induce an intracellular calcium rise in rat PASMC originating from both extracellular and intracellular calcium sources. This study also provides evidence for the implication of TRPV channels in NP induced calcium rise that may highlight the role of these channels in the deleterious cardiovascular effects of NP.
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Affiliation(s)
- Virginie Dubes
- Université de Bordeaux, 146, rue Léo Saignat, Bordeaux, F-33076, France; Inserm U1045, Centre de Recherche Cardio-Thoracique de Bordeaux, 146, rue Léo Saignat, Bordeaux, F-33076, France.
| | - Thibaud Parpaite
- Université de Bordeaux, 146, rue Léo Saignat, Bordeaux, F-33076, France; Inserm U1045, Centre de Recherche Cardio-Thoracique de Bordeaux, 146, rue Léo Saignat, Bordeaux, F-33076, France.
| | - Thomas Ducret
- Université de Bordeaux, 146, rue Léo Saignat, Bordeaux, F-33076, France; Inserm U1045, Centre de Recherche Cardio-Thoracique de Bordeaux, 146, rue Léo Saignat, Bordeaux, F-33076, France.
| | - Jean-François Quignard
- Université de Bordeaux, 146, rue Léo Saignat, Bordeaux, F-33076, France; Inserm U1045, Centre de Recherche Cardio-Thoracique de Bordeaux, 146, rue Léo Saignat, Bordeaux, F-33076, France.
| | - Stéphane Mornet
- Université de Bordeaux, 146, rue Léo Saignat, Bordeaux, F-33076, France; CNRS, ICMCB, UPR 9048, 87 Avenue du Dr Albert Schweitzer, 33600 Pessac, France.
| | - Nora Reinhardt
- Université de Bordeaux, 146, rue Léo Saignat, Bordeaux, F-33076, France; CNRS, ICMCB, UPR 9048, 87 Avenue du Dr Albert Schweitzer, 33600 Pessac, France.
| | - Isabelle Baudrimont
- Université de Bordeaux, 146, rue Léo Saignat, Bordeaux, F-33076, France; Inserm U1045, Centre de Recherche Cardio-Thoracique de Bordeaux, 146, rue Léo Saignat, Bordeaux, F-33076, France.
| | - Mathilde Dubois
- Université de Bordeaux, 146, rue Léo Saignat, Bordeaux, F-33076, France; Inserm U1045, Centre de Recherche Cardio-Thoracique de Bordeaux, 146, rue Léo Saignat, Bordeaux, F-33076, France.
| | - Véronique Freund-Michel
- Université de Bordeaux, 146, rue Léo Saignat, Bordeaux, F-33076, France; Inserm U1045, Centre de Recherche Cardio-Thoracique de Bordeaux, 146, rue Léo Saignat, Bordeaux, F-33076, France.
| | - Roger Marthan
- Université de Bordeaux, 146, rue Léo Saignat, Bordeaux, F-33076, France; Inserm U1045, Centre de Recherche Cardio-Thoracique de Bordeaux, 146, rue Léo Saignat, Bordeaux, F-33076, France; Centre Hospitalier Universitaire de Bordeaux, Hôpital du Haut-Lévêque, Service d'Exploration Fonctionnelle Respiratoire, Avenue de Magellan, Pessac, F-33076, France.
| | - Bernard Muller
- Université de Bordeaux, 146, rue Léo Saignat, Bordeaux, F-33076, France; Inserm U1045, Centre de Recherche Cardio-Thoracique de Bordeaux, 146, rue Léo Saignat, Bordeaux, F-33076, France.
| | - Jean-Pierre Savineau
- Université de Bordeaux, 146, rue Léo Saignat, Bordeaux, F-33076, France; Inserm U1045, Centre de Recherche Cardio-Thoracique de Bordeaux, 146, rue Léo Saignat, Bordeaux, F-33076, France.
| | - Arnaud Courtois
- Université de Bordeaux, 146, rue Léo Saignat, Bordeaux, F-33076, France; Inserm U1045, Centre de Recherche Cardio-Thoracique de Bordeaux, 146, rue Léo Saignat, Bordeaux, F-33076, France; Centre Hospitalier Universitaire de Bordeaux, Centre AntiPoison et de Toxicovigilance d'Aquitaine et de Poitou Charente, Place Amélie Raba Léon, Bordeaux, F-33076, France.
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Bédier C, Striebig A, Capaldo L, Courtois A, Labadie M. Toxicologie et « polar » : excipients de la réussite d’Agatha Christie…. Toxicologie Analytique et Clinique 2016. [DOI: 10.1016/j.toxac.2016.04.002] [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: 11/30/2022]
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49
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Richeval C, Phanithavong M, Wiart JF, Humbert L, Daveluy A, Capaldo L, Guilhot C, Courtois A, Lebeau A, Titier K, Castaing N, Blondet R, Heches X, Fabre J, Lefevre F, Allorge D, Labadie M, Gaulier JM. Consommation de substances psychoactives lors des férias du Sud-Ouest : Fériatox. Toxicologie Analytique et Clinique 2016. [DOI: 10.1016/j.toxac.2016.03.036] [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: 10/21/2022]
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50
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Barrier M, Bégorre MA, Baudrimont I, Dubois M, Freund-Michel V, Marthan R, Savineau JP, Muller B, Courtois A. Involvement of Heme Oxygenase-1 in particulate matter-induced impairment of NO-dependent relaxation in rat intralobar pulmonary arteries. Toxicol In Vitro 2016; 32:205-11. [DOI: 10.1016/j.tiv.2016.01.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2015] [Revised: 12/06/2015] [Accepted: 01/07/2016] [Indexed: 12/12/2022]
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