1
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Saccenti L, Bessy H, Ben Jedidia B, Longere B, Tortolano L, Derbel H, Luciani A, Kobeiter H, Grandpierre T, Tacher V. Performance Comparison of Augmented Reality Versus Ultrasound Guidance for Puncture: A Phantom Study. Cardiovasc Intervent Radiol 2024:10.1007/s00270-024-03727-8. [PMID: 38710797 DOI: 10.1007/s00270-024-03727-8] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Accepted: 04/02/2024] [Indexed: 05/08/2024]
Abstract
PURPOSE Augmented reality (AR) is an innovative approach that could assist percutaneous procedures; by directly seeing "through" a phantom, targeting a lesion might be more intuitive than using ultrasound (US). The objective of this study was to compare the performance of experienced interventional radiologists and operators untrained in soft tissue lesion puncture using AR guidance and standard US guidance. MATERIAL AND METHODS Three trained interventional radiologists with 5-10 years of experience and three untrained operators performed punctures of five targets in an abdominal phantom, with US guidance and AR guidance. Correct targeting, accuracy (defined as the Euclidean distance between the tip and the center of the target), planning time, and puncture time were documented. RESULTS Accuracy was higher for the trained group than the untrained group using US guidance (1 mm versus 4 mm, p = 0.001), but not when using AR guidance (4 mm vs. 4 mm, p = 0.76). All operators combined, no significant difference was found concerning accuracy between US and AR guidance (2 mm vs. 4 mm, p = 0.09), but planning time and puncture time were significantly shorter using AR (respectively, 15.1 s vs. 74 s, p < 0.001; 16.1 s vs. 59 s; p < 0.001). CONCLUSION Untrained and trained operators obtained comparable accuracy in percutaneous punctures when using AR guidance whereas US performance was better in the experienced group. All operators together, accuracy was similar between US and AR guidance, but shorter planning time, puncture time were found for AR guidance.
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Affiliation(s)
- Laetitia Saccenti
- Imagerie Medicale, Hopital Henri Mondor, Creteil, France.
- Henri Mondor's Institute of Biomedical Research, Inserm, U955 Team N°18, Creteil, France.
| | - Hugo Bessy
- Imagerie Medicale, Hopital Henri Mondor, Creteil, France
| | | | - Benjamin Longere
- Department of Cardiovascular Radiology, CHU Lille, 59000, Lille, France
| | | | - Haytham Derbel
- Imagerie Medicale, Hopital Henri Mondor, Creteil, France
- Henri Mondor's Institute of Biomedical Research, Inserm, U955 Team N°18, Creteil, France
| | - Alain Luciani
- Imagerie Medicale, Hopital Henri Mondor, Creteil, France
- Henri Mondor's Institute of Biomedical Research, Inserm, U955 Team N°18, Creteil, France
| | - Hicham Kobeiter
- Imagerie Medicale, Hopital Henri Mondor, Creteil, France
- Henri Mondor's Institute of Biomedical Research, Inserm, U955 Team N°18, Creteil, France
| | - Thierry Grandpierre
- Ecole superieure d'ingenieurs en electrotechnique et electronique, ESIEE Paris, Noisy Le Grand, France
| | - Vania Tacher
- Imagerie Medicale, Hopital Henri Mondor, Creteil, France
- Henri Mondor's Institute of Biomedical Research, Inserm, U955 Team N°18, Creteil, France
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2
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Mayeranoff P, Viault L, Misandeau Q, Paul M, Archer V, Tortolano L. [Medical information of patients with implants: Findings and prospects]. Ann Pharm Fr 2024; 82:184-190. [PMID: 37778658 DOI: 10.1016/j.pharma.2023.09.006] [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: 08/10/2023] [Accepted: 09/27/2023] [Indexed: 10/03/2023]
Abstract
OBJECTIVES The main objective of this study was to assess the level of knowledge and information received by patients regarding their implants and to discuss the role of community pharmacists. METHODS A prospective survey was conducted in 3 pharmacies among patients presenting for various reasons. Firstly, on the same day, all patients visiting the pharmacy were asked if they had an implant. Secondly, patients with implants were offered a short survey consisting of 16 questions concerning the implant and the information received. RESULTS AND DISCUSSION The survey was conducted with 178 patients, among whom 11.4% had implants. The majority of them reported having osteoarticular, dental, or ophthalmic implants. Women were 67.1% of the cohort. None of the 178 patients with implants in the survey had complete information about their implant and its follow-up, which would enable optimal care and effective reporting in case of potential complications. CONCLUSION The majority of patients visiting the pharmacy had received limited or inadequate information about their implants. Community pharmacists, as local healthcare providers, in collaboration with hospitals, could play a crucial role in patient education. During the initial dispensing of postoperative treatments, pharmacists could inform and advise patients to enhance their patient journey.
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Affiliation(s)
- Pierre Mayeranoff
- Service pharmacie, Groupe hospitalier universitaire Henri-Mondor, 94000 Créteil, France
| | - Loriane Viault
- Service pharmacie, Groupe hospitalier universitaire Henri-Mondor, 94000 Créteil, France
| | - Quentin Misandeau
- Service pharmacie, Groupe hospitalier universitaire Henri-Mondor, 94000 Créteil, France
| | - Muriel Paul
- Service pharmacie, Groupe hospitalier universitaire Henri-Mondor, 94000 Créteil, France
| | - Valérie Archer
- Service pharmacie, Groupe hospitalier universitaire Henri-Mondor, 94000 Créteil, France
| | - Lionel Tortolano
- Service pharmacie, Groupe hospitalier universitaire Henri-Mondor, 94000 Créteil, France; Laboratoire matériaux et santé, université Paris-Saclay, 91400 Orsay, France.
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3
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Tortolano L, Misandeau Q, Inouri T, Paul M, Dompnier M, Flouzat-Lachaniette CH, Archer V. Patient information pathway in orthopedic surgery: Roles of ERAS and pharmacists. Orthop Traumatol Surg Res 2023; 109:103576. [PMID: 36754166 DOI: 10.1016/j.otsr.2023.103576] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 09/06/2022] [Accepted: 01/03/2023] [Indexed: 02/10/2023]
Abstract
INTRODUCTION Enhanced Rehabilitation After Surgery (ERAS) pathways significantly improve the care of patients in orthopedic surgery. However, patient knowledge and memorization of the information provided are currently poorly documented. HYPOTHESIS The information provided by a postoperative pharmacist could have a positive impact on patient care, in particular by improving knowledge about their prosthesis. MATERIAL AND METHOD This prospective feasibility study included a cohort of 80 patients operated on for a hip or knee prosthesis and who received postoperative pharmacist interviews (POPI). These POPIs informed the patient about the prosthesis, the complications, positions to avoid, as well as the postoperative follow-up. The objective was to measure the patient's knowledge before and after the POPI. Qualitative and quantitative analyses, by indication and patient pathway, were performed. RESULTS The patient's knowledge before POPI was 70% correct. After POPI this rate rose to 91%. DISCUSSION Patients' knowledge was weak and heterogeneous, especially regarding the implanted prosthesis. The POPI led to significant improvement and standardization of knowledge which should contribute to the prevention of iatrogenic harm (positions to avoid, infection prevention, compliance with analgesics and anticoagulants). CONCLUSION A POPI with a pharmacist improves overall patient management during hip or knee arthroplasty. LEVEL OF EVIDENCE III; non-randomized prospective feasibility study.
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Affiliation(s)
- Lionel Tortolano
- Department of Pharmacy, Henri Mondor Hospital, AP-HP, Créteil, France; Université Paris-Saclay, EA Matériaux et santé, 91400, Orsay, France.
| | - Quentin Misandeau
- Department of Pharmacy, Henri Mondor Hospital, AP-HP, Créteil, France
| | - Tinhinane Inouri
- Department of Pharmacy, Henri Mondor Hospital, AP-HP, Créteil, France
| | - Muriel Paul
- Department of Pharmacy, Henri Mondor Hospital, AP-HP, Créteil, France
| | - Mathilde Dompnier
- Department of Pharmacy, Henri Mondor Hospital, AP-HP, Créteil, France
| | - Charles-Henri Flouzat-Lachaniette
- Department of Orthopaedic Surgery, Henri Mondor Hospital, AP-HP, University of Paris, East Créteil, France; Cell and Tissue Engineering for Musculoskeletal Disorders (Group 5)/Biology of the NeuroMuscular System (INSERM Team 10)/Mondor Institute for Biomedical Research, Créteil, France
| | - Valérie Archer
- Department of Pharmacy, Henri Mondor Hospital, AP-HP, Créteil, France
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4
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Coelho GA, Secretan PH, Tortolano L, Charvet L, Yagoubi N. Evolution of the Chronic Venous Leg Ulcer Microenvironment and Its Impact on Medical Devices and Wound Care Therapies. J Clin Med 2023; 12:5605. [PMID: 37685674 PMCID: PMC10488485 DOI: 10.3390/jcm12175605] [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: 08/02/2023] [Revised: 08/22/2023] [Accepted: 08/26/2023] [Indexed: 09/10/2023] Open
Abstract
Studies have reported that the constituents of the wound microenvironment are likely to have critical roles in the degradation and fate of the polymeric matrix and the compounds dissolved in the wound dressing matrix. Thus, chronic wound assessment and the design of effective medical devices and drug products for wound care partly rely on an in-depth understanding of the wound microenvironment. The main aim of this review is to identify and discuss the different stages of chronic wound progression, focusing on the changes in the biochemical composition of the wound microenvironment, with particular attention given to venous leg ulcers (VLUs), as they are one of the most prevalent chronic wound aetiologies. The pathophysiology of venous ulcers is detailed, followed by a thorough review of what is known about the VLU microenvironment and its changes as a function of the evolution of the VLU. Simulating conditions for VLU are then discussed with the view of highlighting potentially relevant simulating media as a function of VLU evolution for a better assessment of biological safety, in particular medical devices intended to be in contact with these wounds.
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Affiliation(s)
- Gisele Abreu Coelho
- Laboratoire Matériaux et Santé, Université Paris-Saclay, 91400 Orsay, France; (P.-H.S.); (L.T.); (N.Y.)
- Urgo Recherche Innovation et Développement, 21300 Chenove, France;
| | - Philippe-Henri Secretan
- Laboratoire Matériaux et Santé, Université Paris-Saclay, 91400 Orsay, France; (P.-H.S.); (L.T.); (N.Y.)
| | - Lionel Tortolano
- Laboratoire Matériaux et Santé, Université Paris-Saclay, 91400 Orsay, France; (P.-H.S.); (L.T.); (N.Y.)
- Department of Pharmacy, Assistance Publique-Hôpitaux de Paris, Groupe Hospitalier Henri Mondor, 94000 Créteil, France
| | - Loïc Charvet
- Urgo Recherche Innovation et Développement, 21300 Chenove, France;
| | - Najet Yagoubi
- Laboratoire Matériaux et Santé, Université Paris-Saclay, 91400 Orsay, France; (P.-H.S.); (L.T.); (N.Y.)
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5
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Khzam A, Saunier J, Carpentier L, Mignot A, Tortolano L, Yagoubi N. Impact of lock solutions on the mechanical performance of polyurethane central venous catheters: A comparative study. Med Eng Phys 2023; 117:103994. [PMID: 37331749 DOI: 10.1016/j.medengphy.2023.103994] [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: 09/30/2022] [Revised: 02/14/2023] [Accepted: 05/12/2023] [Indexed: 06/20/2023]
Abstract
The impact of ethanol locks on the mechanical performances of central venous catheters was compared to that of aqueous-based locks. Several mechanical tests were performed to evaluate catheter behavior: kinking radius measurements, burst pressure, and tensile tests. Different polyurethanes were studied to assess the impact of radio-opaque charge and polymer chemical composition on catheter behavior. The results were correlated to swelling measurements and calorimetric measurements. In particular, ethanol locks have a higher impact on long contact time than aqueous-based locks: stresses and strains at break were lower, and kinking radii were higher. However, for all catheters, the mechanical performances remain much higher than the normative requirements.
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Affiliation(s)
- Afif Khzam
- Matériaux et Santé, UFR de pharmacie, Université Paris Saclay, France
| | - Johanna Saunier
- Matériaux et Santé, UFR de pharmacie, Université Paris Saclay, France.
| | | | | | - Lionel Tortolano
- Matériaux et Santé, UFR de pharmacie, Université Paris Saclay, France; Assistance Publique-Hôpitaux de Paris, Groupe hospitalier Henri Mondor, Department of Pharmacy, 51 Avenue du Maréchal de Lattre de Tassigny, Créteil, F-94010, France
| | - Najet Yagoubi
- Matériaux et Santé, UFR de pharmacie, Université Paris Saclay, France
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6
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Khzam A, Saunier J, Guilbaud M, Herry JM, Dazzi A, Tortolano L, Carpentier L, Mignot A, Yagoubi N. Surface properties and bacterial adhesion on polyurethane central catheters: Impact of ethanol lock solution. Biomater Adv 2023; 146:213281. [PMID: 36634377 DOI: 10.1016/j.bioadv.2023.213281] [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] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 12/08/2022] [Accepted: 01/02/2023] [Indexed: 01/09/2023]
Abstract
It was shown in the literature that ethanol locks have a positive effect on preventing catheter-related infections in patients with central venous catheters without causing any microbial resistance. However, ethanol is known to interact with polyurethanes. The consequences of this interaction on the catheter surface properties were studied as it can impact the biocompatibility of the material and the adhesion phenomena onto the surface. No physical and chemical degradation was put into evidence, but low molecular weight compounds such as additives were extracted from the catheter bulk or migrated and exudated onto its surface. Nevertheless, as far as bacterial adhesion is concerned, after the catheter was locked and the lock removed, the surface modifications promoted no adhesion.
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Affiliation(s)
- A Khzam
- Université Paris-Saclay, Faculté de pharmacie, Matériaux et Santé, 91400 Orsay, France
| | - J Saunier
- Université Paris-Saclay, Faculté de pharmacie, Matériaux et Santé, 91400 Orsay, France.
| | - M Guilbaud
- Université Paris-Saclay, INRAE, AgroParisTech, UMR SayFood, 91300 Massy, France
| | - J M Herry
- Université Paris-Saclay, INRAE, AgroParisTech, UMR SayFood, 91300 Massy, France
| | - A Dazzi
- Université Paris-Saclay, CNRS, Institut de Chimie Physique, 91405 Orsay, France
| | - L Tortolano
- Université Paris-Saclay, Faculté de pharmacie, Matériaux et Santé, 91400 Orsay, France; Department of Pharmacy, Henri Mondor Hospital, Créteil, France
| | | | | | - N Yagoubi
- Université Paris-Saclay, Faculté de pharmacie, Matériaux et Santé, 91400 Orsay, France
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7
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Khzam A, Saunier J, Carpentier L, Mignot A, Tortolano L, Yagoubi N. Surface and mechanical properties of polyurethane central venous catheters after repeated contact with chemotherapy excipient solutions. J Biomed Mater Res B Appl Biomater 2023; 111:1182-1196. [PMID: 36705442 DOI: 10.1002/jbm.b.35224] [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: 06/14/2022] [Revised: 12/05/2022] [Accepted: 12/23/2022] [Indexed: 01/28/2023]
Abstract
This article investigates the impact of the interactions between polyurethane central venous catheters and solutions containing excipients used in cisplatin and paclitaxel formulations. Changes to the properties of catheters and the leaching of catheter additives into the infused solutions were studied while these solutions were infused cyclically for several months. Chemotherapy treatment was mimicked in vitro in compliance with hospital practices. The treatment cycle was repeated 10 times, using solutions containing only the excipients. After 10 treatment cycles, no physical or chemical degradation of the catheter was observed. Mechanical performances were stable, but surface modifications occurred, causing the surface to become more hydrophobic. A loss in polyurethane antioxidant amount was observed in part due to a leaching phenomenon.
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Affiliation(s)
- Afif Khzam
- Matériaux et Santé, UFR de pharmacie, Université Paris-Saclay, Orsay, France
| | - Johanna Saunier
- Matériaux et Santé, UFR de pharmacie, Université Paris-Saclay, Orsay, France
| | | | | | - Lionel Tortolano
- Matériaux et Santé, UFR de pharmacie, Université Paris-Saclay, Orsay, France.,Department of Pharmacy, Assistance Publique-Hôpitaux de Paris, Groupe hospitalier Henri Mondor, Créteil, France
| | - Najet Yagoubi
- Matériaux et Santé, UFR de pharmacie, Université Paris-Saclay, Orsay, France
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8
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Tortolano L, Mrad O, Manerlax K, Khalfoun C, Yousfi R, Saunier J, Secretan P, Yagoubi N. Comparative stability of intraocular lenses during 2–20 years of artificial aging, potential effects in terms of biocompatibility. J Appl Polym Sci 2022. [DOI: 10.1002/app.52752] [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: 11/10/2022]
Affiliation(s)
- Lionel Tortolano
- EA Matériaux et Santé Université Paris‐Saclay Châtenay‐Malabry France
- Department of Pharmacy Assistance Publique‐Hôpitaux de Paris, Groupe Hospitalier Henri Mondor Créteil France
| | - Omar Mrad
- EA Matériaux et Santé Université Paris‐Saclay Châtenay‐Malabry France
| | - Katia Manerlax
- EA Matériaux et Santé Université Paris‐Saclay Châtenay‐Malabry France
| | - Chaineze Khalfoun
- EA Matériaux et Santé Université Paris‐Saclay Châtenay‐Malabry France
| | - Rayane Yousfi
- EA Matériaux et Santé Université Paris‐Saclay Châtenay‐Malabry France
| | - Johanna Saunier
- EA Matériaux et Santé Université Paris‐Saclay Châtenay‐Malabry France
| | | | - Najet Yagoubi
- EA Matériaux et Santé Université Paris‐Saclay Châtenay‐Malabry France
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9
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Secretan PH, Sadou Yayé H, Sogaldi A, Antignac M, Tortolano L, Thirion O, Vieillard V, Yagoubi N, Do B. Intrinsic stability of the antiviral drug umifenovir by stress testing and DFT studies. J Pharm Biomed Anal 2021; 196:113934. [PMID: 33549876 DOI: 10.1016/j.jpba.2021.113934] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [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: 11/30/2020] [Revised: 01/20/2021] [Accepted: 01/24/2021] [Indexed: 12/15/2022]
Abstract
Umifenovir is an antiviral drug approved in China and Russia for the treatment of influenza. The available dosage form consists of capsules marketed under the brand name Arbidol®. Due to its broad spectrum, umifenovir may also be used in other viral contexts, alone or combined with other antiviral drugs. Although knowledge of umifenovir intrinsic stability may be useful for any potential development of other pharmaceutical forms for other routes of administration and for quality risk management, no data regarding this matter is available to date. In this study, the exploration of the molecule's behaviour under hydrolytic, oxidative and photolytic conditions was carried out experimentally and supported by density functional theory (DFT) studies. It comes out that umifenovir is sensitive to these stress conditions giving rise to 6 structurally characterized degradation products. The one-electron oxidation process produced on the sulphur atom is probably the main cause of umifenovir degradation with reference to the structures of the degradation products formed and the DFT data.
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Affiliation(s)
- Philippe-Henri Secretan
- Paris Cardiovascular Research Centre, INSERM U970, Paris, France; Université Paris-Saclay, Matériaux et santé, 92296, Châtenay-Malabry, France.
| | - Hassane Sadou Yayé
- Université Paris-Saclay, Matériaux et santé, 92296, Châtenay-Malabry, France; Department of Pharmacy, Pitié-Salpêtrière Hospital, AP-HP, Paris, France
| | - Audrey Sogaldi
- Université Paris-Saclay, Inserm, CNRS, Ingénierie et Plateformes au Service de l'Innovation Thérapeutique, 92296, Châtenay-Malabry, France
| | - Marie Antignac
- Paris Cardiovascular Research Centre, INSERM U970, Paris, France; Department of Pharmacy, Saint-Antoine Hospital, HUEP, AP-HP, Paris, France
| | - Lionel Tortolano
- Université Paris-Saclay, Matériaux et santé, 92296, Châtenay-Malabry, France; Department of Pharmacy, Henri Mondor Hospital, AP-HP, Créteil, France
| | - Olivier Thirion
- Department of Pharmacy, Henri Mondor Hospital, AP-HP, Créteil, France
| | | | - Najet Yagoubi
- Université Paris-Saclay, Matériaux et santé, 92296, Châtenay-Malabry, France
| | - Bernard Do
- Université Paris-Saclay, Matériaux et santé, 92296, Châtenay-Malabry, France; Department of Pharmacy, Henri Mondor Hospital, AP-HP, Créteil, France
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10
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Secrétan PH, Karoui M, Sadou Yayé H, Levi Y, Tortolano L, Solgadi A, Yagoubi N, Do B. Imatinib: Major photocatalytic degradation pathways in aqueous media and the relative toxicity of its transformation products. Sci Total Environ 2019; 655:547-556. [PMID: 30476834 DOI: 10.1016/j.scitotenv.2018.11.270] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 11/13/2018] [Accepted: 11/18/2018] [Indexed: 06/09/2023]
Abstract
Imatinib (IMA) is a highly potent tyrosine kinase inhibitor used as first-line anti-cancer drug in the treatment of chronic myeloid leukemia. Due to its universal mechanism of action, IMA also has endocrine and mutagenic disrupting effects in vivo and in vitro, which raises the question of its environmental impact. However, to date, very little information is available on its environmental fate and the potential role of its transformation products (TPs) on aquatic organisms. Given the IMA resistance to hydrolysis and direct photolysis according to the literature, we sought to generate TPs through oxidative and radical conditions using the AOPs pathway. Thus, the reactivity of the cytotoxic drug IMA in water in the presence of OH and h+ was investigated for the first time in the present work. In this regard, a non-targeted screening approach was applied in order to reveal its potential TPs. The tentative structural elucidation of the detected TPs was performed by LC-HRMSn. The proposed approach allowed detecting a total of twelve TPs, among which eleven are being described for the first time in this work. Although the structures of these TPs could not be positively confirmed due to lack of standards, their chemical formulas and product ions can be added to databases, which will allow their screening in future monitoring studies. Using the quantitative structure-activity relationship (QSAR) approach and rule-based software, we have shown that the detected TPs possess, like their parent molecule, comparable acute toxicity as well as mutagenic and estrogenic potential. In addition to the in silico studies, we also found that the samples obtained at different exposure times to oxidative conditions, including those where IMA is no longer detected, retained toxicity in vitro. Such results suggest further studies are needed to increase our knowledge of the impact of imatinib on the environment.
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Affiliation(s)
- P H Secrétan
- University of Paris-Sud, Department of Pharmacy, Laboratory "Matériaux et Santé" EA 401, 5 rue Jean Baptiste Clément, 92296 Châtenay-Malabry, France; Assistance Publique-Hôpitaux de Paris, Hôpital Necker, Department of Pharmacy, 149 Rue de Sèvres, 75015 Paris, France.
| | - M Karoui
- University of Paris-Sud, Department of Pharmacy, Laboratory "Matériaux et Santé" EA 401, 5 rue Jean Baptiste Clément, 92296 Châtenay-Malabry, France
| | - H Sadou Yayé
- University of Paris-Sud, Department of Pharmacy, Laboratory "Matériaux et Santé" EA 401, 5 rue Jean Baptiste Clément, 92296 Châtenay-Malabry, France; Assistance Publique-Hôpitaux de Paris, Groupe Pitié-Salpétrière, Department of Pharmacy, 47-83 Boulevard de l'Hôpital, 75013, Paris
| | - Y Levi
- University of Paris-Sud, Faculté de Pharmacie, UMR 8079, CNRS, AgroParisTech, Paris, France
| | - L Tortolano
- University of Paris-Sud, Department of Pharmacy, Laboratory "Matériaux et Santé" EA 401, 5 rue Jean Baptiste Clément, 92296 Châtenay-Malabry, France; Assistance Publique-Hôpitaux de Paris, Groupe hospitalier Henri Mondor, Department of Pharmacy, 51 Avenue du Maréchal de Lattre de Tassigny, 94010 Créteil, France
| | - A Solgadi
- University of Paris-Sud, Faculté de Pharmacie, Service d'Analyse des Médicaments et Métabolites, Institut d'Innovation Thérapeutique, 5 rue Jean Baptiste Clément, 92296 Chatenay-Malabry, France
| | - N Yagoubi
- University of Paris-Sud, Department of Pharmacy, Laboratory "Matériaux et Santé" EA 401, 5 rue Jean Baptiste Clément, 92296 Châtenay-Malabry, France
| | - B Do
- University of Paris-Sud, Department of Pharmacy, Laboratory "Matériaux et Santé" EA 401, 5 rue Jean Baptiste Clément, 92296 Châtenay-Malabry, France; Assistance Publique-Hôpitaux de Paris, Groupe hospitalier Henri Mondor, Department of Pharmacy, 51 Avenue du Maréchal de Lattre de Tassigny, 94010 Créteil, France
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11
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Bravo P, Bertin L, Pinon A, Tortolano L, Fleury T, Raimbault S, Chachaty E, Annereau M, Lemare F. Development and stability of an oral suspension of procarbazine in pediatrics. J Drug Deliv Sci Technol 2019. [DOI: 10.1016/j.jddst.2018.11.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [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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12
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Tortolano L, Matmati H, Bourhis M, Manerlax K, Lemare F, Saunier J, Yagoubi N. DinCH and ESBO actual migration from PVC infusion tubings used in an oncopediatric unit. J Appl Polym Sci 2018. [DOI: 10.1002/app.46649] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Lionel Tortolano
- EA 401: Matériaux et santé; Université Paris-Saclay, UFR Pharmacie; Châtenay-Malabry F-92290 France
- Groupe hospitalier Henri Mondor, Department of Pharmacy; Assistance Publique-Hôpitaux de Paris; Créteil F-94010 France
| | - Houssem Matmati
- EA 401: Matériaux et santé; Université Paris-Saclay, UFR Pharmacie; Châtenay-Malabry F-92290 France
| | - Matthieu Bourhis
- Département de Pharmacie Clinique; Gustave Roussy, Université Paris-Saclay; Villejuif F-94805 France
| | - Katia Manerlax
- EA 401: Matériaux et santé; Université Paris-Saclay, UFR Pharmacie; Châtenay-Malabry F-92290 France
| | - François Lemare
- Département de Pharmacie Clinique; Gustave Roussy, Université Paris-Saclay; Villejuif F-94805 France
- Chair of Clinical Pharmacy, Faculty of Pharmacy of Paris; Sorbonne-Paris University; Paris F-75006 France
- EA 7348 (MOS) de l'Ecole des Hautes Etudes de Santé Publique; Rennes F-35000 France
| | - Johanna Saunier
- EA 401: Matériaux et santé; Université Paris-Saclay, UFR Pharmacie; Châtenay-Malabry F-92290 France
| | - Najet Yagoubi
- EA 401: Matériaux et santé; Université Paris-Saclay, UFR Pharmacie; Châtenay-Malabry F-92290 France
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Secrétan PH, Karoui M, Levi Y, Sadou Yayé H, Tortolano L, Solgadi A, Yagoubi N, Do B. Pemetrexed degradation by photocatalytic process: Kinetics, identification of transformation products and estimation of toxicity. Sci Total Environ 2018; 624:1082-1094. [PMID: 29625523 DOI: 10.1016/j.scitotenv.2017.12.182] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Revised: 12/16/2017] [Accepted: 12/17/2017] [Indexed: 06/08/2023]
Abstract
This study employed a UV-A/visible/TiO2 system to investigate the degradation of pemetrexed, an antifolate agent used in chemotherapy. The laboratory-scale method employed a photostability chamber that could be used to study multiple samples. Reversed-phase HPLC coupled with high-resolution ESI-LTQ-Orbitrap mass spectrometry was used to determine the transformation products (TPs) of PEME. Based on the identified TPs and existing chemical knowledge, the mechanism of degradation of the target compound was proposed. Concentrations were monitored as a function of time, and the degradation kinetics were compared. The structures of seven TPs, four of which have not been described to date, were proposed. Most of the TPs stemmed from OH radical additions to the dihydropyrrole moiety and oxidative decarboxylation of the glutamate residue. Based on the elucidated structures, a computational toxicity assessment was performed, showing that the TPs with higher log D values than the parent compound are more toxic than the PEME itself. To support these findings, the toxicities of irradiated samples on Vibrio fischeri were monitored over time. The experimental results corresponded well with the results of previous computational studies.
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Affiliation(s)
- Philippe-Henri Secrétan
- University of Paris-Sud, Department of Pharmacy, Laboratory "Matériaux et Santé" EA 401, 5 rue Jean Baptiste Clément, 92296 Châtenay-Malabry, France; Assistance Publique-Hôpitaux de Paris, Hôpital Necker, Department of Pharmacy, 149 Rue de Sèvres, 75015 Paris, France.
| | - Maher Karoui
- University of Paris-Sud, Department of Pharmacy, Laboratory "Matériaux et Santé" EA 401, 5 rue Jean Baptiste Clément, 92296 Châtenay-Malabry, France; Assistance Publique-Hôpitaux de Paris, Groupe hospitalier Henri Mondor, Department of Pharmacy, 51 Avenue du Maréchal de Lattre de Tassigny, 94010 Créteil, France
| | - Yves Levi
- University of Paris-Sud, Faculté de Pharmacie, UMR 8079, CNRS, AgroParisTech, Paris, France
| | - Hassane Sadou Yayé
- University of Paris-Sud, Department of Pharmacy, Laboratory "Matériaux et Santé" EA 401, 5 rue Jean Baptiste Clément, 92296 Châtenay-Malabry, France
| | - Lionel Tortolano
- University of Paris-Sud, Department of Pharmacy, Laboratory "Matériaux et Santé" EA 401, 5 rue Jean Baptiste Clément, 92296 Châtenay-Malabry, France; Assistance Publique-Hôpitaux de Paris, Groupe hospitalier Henri Mondor, Department of Pharmacy, 51 Avenue du Maréchal de Lattre de Tassigny, 94010 Créteil, France
| | - Audrey Solgadi
- University of Paris-Sud, Faculté de Pharmacie, Service d'Analyse des Médicaments et Métabolites, Institut d'Innovation Thérapeutique, 5 rue Jean Baptiste Clément, 92296 Chatenay-Malabry, France
| | - Najet Yagoubi
- University of Paris-Sud, Department of Pharmacy, Laboratory "Matériaux et Santé" EA 401, 5 rue Jean Baptiste Clément, 92296 Châtenay-Malabry, France
| | - Bernard Do
- University of Paris-Sud, Department of Pharmacy, Laboratory "Matériaux et Santé" EA 401, 5 rue Jean Baptiste Clément, 92296 Châtenay-Malabry, France; Assistance Publique-Hôpitaux de Paris, Groupe hospitalier Henri Mondor, Department of Pharmacy, 51 Avenue du Maréchal de Lattre de Tassigny, 94010 Créteil, France
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Hamel C, Tortolano L, Bermudez E, Desmaris R, Klein S, Slimano F, Lemare F. Computerized pediatric oncology prescriptions review by pharmacist: A descriptive analysis and associated risk factors. Pediatr Blood Cancer 2018; 65. [PMID: 29251399 DOI: 10.1002/pbc.26897] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Revised: 10/23/2017] [Accepted: 10/23/2017] [Indexed: 11/08/2022]
Abstract
BACKGROUND Systematic prescription analyses by clinical pharmacists result in pharmacist interventions (PIs) to reduce prescription errors and improve medication safety. PIs are particularly critical in oncology, because antineoplastic drugs are highly toxic with low therapeutic indexes especially in a pediatric population. The aim of this study is to describe PIs in a pediatric oncology department and to identify potential risk factors associated with prescription errors. PROCEDURE We conducted a 20-month observational study in a pediatric oncology department concerning electronic prescription of injectable chemotherapies was conducted. PIs were analyzed for drug-related problems (DRPs), type of intervention, population characteristics, involved drugs, and the potential risk factors. RESULTS Clinical pharmacists made 90 PIs for 10,214 antineoplastic prescriptions for a rate of 88 PIs per 10,000 prescriptions. The majority of DRPs were dosage errors (61.8%), imputable to measurements (weight and/or height) in 47.4% or unreported dose reduction. The most common patient ages were in the range 1-10 years and the most common time for medical double checks was 2-9 pm. There were statistically more prescription errors in standardized protocols (P < 0.001). CONCLUSIONS Not surprisingly, PIs were predominantly to correct dose errors, half of which related to height and weight measurements that were not updated. No significant risk factors for errors were identified for errors except in the standardized status of prescription, which appears to be linked in part to our software that did not automatically reflect dose reduction from one course to the next. Medical double-checking followed by a clinical pharmacist's double check were effective in order to prevent prescription errors.
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Affiliation(s)
- Claire Hamel
- Department of Clinical Pharmacy, Gustave Roussy Cancer Campus, Villejuif Cedex, 94805, France
| | - Lionel Tortolano
- Department of Clinical Pharmacy, Gustave Roussy Cancer Campus, Villejuif Cedex, 94805, France.,EA401, IFR141, Faculty of Pharmacy, Paris-sud, University, Chatenay-Malabry, 92296, France.,Assistance Publique-Höpitaux de Paris, Groupe hospitalier Henri Mondor, Department of Pharmacy, 51 Avenue du Maréchal de Lattre de Tassigny, Créteil, F-94010, France
| | - Elisabeth Bermudez
- Department of Clinical Pharmacy, Gustave Roussy Cancer Campus, Villejuif Cedex, 94805, France
| | - Romain Desmaris
- Department of Clinical Pharmacy, Gustave Roussy Cancer Campus, Villejuif Cedex, 94805, France
| | - Sébastien Klein
- Department of Pediatric Oncology, Gustave Roussy Cancer Campus, Villejuif Cedex, 94805, France
| | - Florian Slimano
- Department of Clinical Pharmacy, Gustave Roussy Cancer Campus, Villejuif Cedex, 94805, France.,MEDyC Research Unit, UMR CNRS/URCA no. 7369, Reims University, Reims, 51100, France.,Facuty of Pharmacy, Reims University, Reims, 51100, France
| | - François Lemare
- Department of Clinical Pharmacy, Gustave Roussy Cancer Campus, Villejuif Cedex, 94805, France.,Chair of Clinical Pharmacy, Faculty of Pharmacy of Paris, Sorbonne-Paris University, Paris, 75 270, France.,EA 7348 MOS, Ecole des Hautes Etudes en Santé Publique, Rennes, 35043, France
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Tortolano L, Saunier J, Hammami S, Manerlax K, Matmati H, Do B, Jubeli E, Fattal E, Yagoubi N. Restructuration kinetics of amphiphilic intraocular lenses during aging. Colloids Surf B Biointerfaces 2018; 161:420-432. [PMID: 29121615 DOI: 10.1016/j.colsurfb.2017.11.007] [Citation(s) in RCA: 3] [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: 06/26/2017] [Revised: 10/11/2017] [Accepted: 11/02/2017] [Indexed: 12/11/2022]
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16
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Tortolano L, Yen-Nicolaÿ S, Rogliano PF, Alkhashnam H, Honart JF, Manerlax K, Rimareix F, Lemare F, Yagoubi N. Permeability of expander breast implants: In vitro and in vivo analyses. J Mech Behav Biomed Mater 2017; 78:427-432. [PMID: 29223731 DOI: 10.1016/j.jmbbm.2017.12.001] [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: 08/08/2017] [Revised: 11/29/2017] [Accepted: 12/01/2017] [Indexed: 10/18/2022]
Abstract
INTRODUCTION The biocompatibility of the polysiloxane breast implant has been studied moderately. The aging of these implants due to lipid penetration and the release of polymerization impurities, such as Platine or octamethylcyclotetrasiloxane (named D4), has already been documented. Since these studies, manufacturing procedures have been improved; thus, the security of breast implants has also improved. Although polymerization and the choice of monomer influence the shell properties, few studies have compared these together in breast implants. Our study compares the permeability and mechanical resistance of 3 breast expander shells after in vivo and in vitro aging. RESULTS In vitro, all tested shells quickly sorbed linear molecules, such as fatty acids, and released siloxane impurities. The penetration of a molecule with steric hindrance, such as cholesterol, is slower. Allergan shells have the highest rates of molecule sorption and siloxane release. In vivo, after implantation, Allergan shells lost their initial mechanical properties over time. This observation was not found for mentor shells. For all brands, many biological molecules penetrate the shells, among which cholesterol and fatty acids are always present. DISCUSSION The aging of polysiloxane shells depends on the sorption of many biological molecules and the release of siloxane impurities. The siloxanes are impurities and / or degradation products that are due to aging. Moreover, according to our results, the shells act as matrices that separate molecules according to their chemical and physical properties. CONCLUSION Not all polysiloxane expander shells have the same properties during aging. The manufacturing procedures and the choice of siloxane monomers are the two most probative factors that explain the observed differences.
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Affiliation(s)
- Lionel Tortolano
- EA 401: Matériaux et santé, Université Paris-Saclay, UFR Pharmacie, Châtenay-Malabry F-92290, France; Assistance Publique-Hôpitaux de Paris, Groupe hospitalier Henri Mondor, Department of Pharmacy, 51 Avenue du Maréchal de Lattre de Tassigny, Créteil F-94010, France.
| | - Stéphanie Yen-Nicolaÿ
- UMS IPSIT, SAMM and Trans-Prot facilities, Université Paris-Saclay, UFR Pharmacie, Châtenay-Malabry F-92290, France
| | - Pierre-François Rogliano
- EA 401: Matériaux et santé, Université Paris-Saclay, UFR Pharmacie, Châtenay-Malabry F-92290, France
| | - Heba Alkhashnam
- Gustave Roussy, Université Paris-Saclay, Département de Plastie, Villejuif F-94805, France
| | - Jean-François Honart
- Gustave Roussy, Université Paris-Saclay, Département de Plastie, Villejuif F-94805, France
| | - Katia Manerlax
- EA 401: Matériaux et santé, Université Paris-Saclay, UFR Pharmacie, Châtenay-Malabry F-92290, France
| | - Françoise Rimareix
- Gustave Roussy, Université Paris-Saclay, Département de Plastie, Villejuif F-94805, France
| | - François Lemare
- Gustave Roussy, Université Paris-Saclay, Département de Pharmacie Clinique, Villejuif F-94805, France; Chair of clinical pharmacy, Faculty of Pharmacy of Paris, Sorbonne-Paris University, Paris F-75006, France; EA 7348 (MOS) de l'Ecole des Hautes Etudes de Santé Publique, 35000 Rennes, France
| | - Najet Yagoubi
- EA 401: Matériaux et santé, Université Paris-Saclay, UFR Pharmacie, Châtenay-Malabry F-92290, France
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Bernard M, Jubeli E, Bakar J, Tortolano L, Saunier J, Yagoubi N. Biocompatibility assessment of cyclic olefin copolymers: Impact of two additives on cytotoxicity, oxidative stress, inflammatory reactions, and hemocompatibility. J Biomed Mater Res A 2017; 105:3333-3349. [PMID: 28875577 DOI: 10.1002/jbm.a.36199] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [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: 04/29/2017] [Revised: 08/02/2017] [Accepted: 08/07/2017] [Indexed: 12/11/2022]
Abstract
This work reports the biocompatibility evaluation of cyclic olefin copolymers (COC) as candidates for implantable medical devices. The focus was to establish the influence of two major additives (antioxidant and lubricant) on the overall biocompatibility. The cytotoxicity was evaluated according to ISO 10993-5 guidelines using L929 fibroblasts, HUVEC, and THP-1-derived macrophages. Oxidative stress (ROS, GSH/GSSG, and SOD analysis) and pro-inflammatory cytokines (Il-6 and TNF-α secretion) were quantified using THP-1 cells in direct contact with films. Hemocompatibility was assessed through haemolysis testing, dynamic blood coagulation, platelet adhesion, and activation (membranous P-selectin expression). Results show that the different types of COC have successfully passed the in vitro biocompatibility tests. The presence of antioxidant induces however a slight decrease in ROS production in correlation with a high SOD activity and a modification in blood coagulation profile probably linked to antioxidant recrystallization phenomenon on the surface of COC. The lubricant presence reduced haemolysis, fibrinogen adhesion, and platelet activation. Surface nanotopography of COC highlights different types of needles and globules according to the present additive. Those primary results indicate that COC are promising biomaterial. However, additives influenced some biological parameters pointing out the necessity of a global approach of risk analysis for biocompatibility evaluation. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 105A: 3333-3349, 2017.
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Affiliation(s)
- Mélisande Bernard
- Department of Pharmacy, Paris-Sud University, EA 401 Groupe Matériaux et Santé, Paris, France.,Assistance Publique - Hôpitaux de Paris, Agence Générale des Produits et Equipements de Santé, Laboratories Departement, Paris, France
| | - Emile Jubeli
- Department of Pharmacy, Paris-Sud University, EA 401 Groupe Matériaux et Santé, Paris, France
| | - Joudi Bakar
- Department of Pharmacy, Paris-Sud University, EA 401 Groupe Matériaux et Santé, Paris, France
| | - Lionel Tortolano
- Department of Pharmacy, Paris-Sud University, EA 401 Groupe Matériaux et Santé, Paris, France
| | - Johanna Saunier
- Department of Pharmacy, Paris-Sud University, EA 401 Groupe Matériaux et Santé, Paris, France
| | - Najet Yagoubi
- Department of Pharmacy, Paris-Sud University, EA 401 Groupe Matériaux et Santé, Paris, France
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Tortolano L, Hammami S, Manerlax K, Do B, Yagoubi N. RP-HPLC detection and dosage method for acrylic monomers and degradation products released from implanted medical devices. J Chromatogr B Analyt Technol Biomed Life Sci 2016; 1038:26-33. [PMID: 27776330 DOI: 10.1016/j.jchromb.2016.10.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Revised: 10/15/2016] [Accepted: 10/17/2016] [Indexed: 10/20/2022]
Abstract
Acrylic copolymers are useful in medical therapeutics. As in dental implants or intraocular lenses, acrylics are present in many medical devices or drug adjuvants. Industrial using of acrylics is still important in painting or textile manufacturing. Scientific research background has proved that acrylic suffer for depolymerized and cross-linking mechanisms under heating and photo-oxidative conditions. Those aging processes could lead to release of unreacted monomers and degradation products. We developed a new RP-HPLC method with good resolution, recovery, linearity, detection and quantification limits that is efficient for acrylic monomers quantification in in vitro and in vivo saline solution matrices. This method allows the detection of copolymer and medical devices degradation products too. Both the limit of quantification and the limit of detection for monomers and degradation products are above cytotoxic concentrations for human epithelial cells. Those biological results confirm the interest of the method for dosage of unreacted acrylics after polymerization and for the research of degradation products in body fluids as aqueous humor.
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Affiliation(s)
- Lionel Tortolano
- EA 401: Matériaux et santé, Université Paris-Saclay, UFR Pharmacie, Châtenay-Malabry F-92290, France; Gustave Roussy, Université Paris-Saclay, Département de Pharmacie Clinique, Villejuif F-94805, France.
| | - Senda Hammami
- EA 401: Matériaux et santé, Université Paris-Saclay, UFR Pharmacie, Châtenay-Malabry F-92290, France
| | - Katia Manerlax
- EA 401: Matériaux et santé, Université Paris-Saclay, UFR Pharmacie, Châtenay-Malabry F-92290, France
| | - Bernard Do
- EA 401: Matériaux et santé, Université Paris-Saclay, UFR Pharmacie, Châtenay-Malabry F-92290, France; Hôpital Universitaire Henri Mondor, AP-HP, Département de Pharmacie, Créteil F-94010, France
| | - Najet Yagoubi
- EA 401: Matériaux et santé, Université Paris-Saclay, UFR Pharmacie, Châtenay-Malabry F-92290, France
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Tortolano L, Becamel I, Briand D, Vincent F. GRP-017 Analysis and Prevention of Musculoskeletal Disorders in a Hospital Sterilisation Unit. Eur J Hosp Pharm 2013. [DOI: 10.1136/ejhpharm-2013-000276.017] [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: 11/03/2022] Open
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20
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Milane A, Tortolano L, Fernandez C, Bensimon G, Meininger V, Farinotti R. Brain and plasma riluzole pharmacokinetics: effect of minocycline combination. J Pharm Pharm Sci 2009; 12:209-17. [PMID: 19732498 DOI: 10.18433/j36c78] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
PURPOSE amyotrophic lateral sclerosis is a fatal neurodegenerative disease characterized by the loss of motorneurons. The only drug approved is riluzole. Minocycline is an antibiotic with numerous neuroprotective properties. riluzole and minocycline were given to an animal model of ALS and had beneficial effect on the disease. The combination was then tested in humans in phase II and phase III studies with less beneficial effects and a faster decline of the disease in the group treated with minocycline. In a previous study, we showed that riluzole is transported out of the brain by the P-glycoprotein at the blood-brain barrier level. METHODS in this work, we studied in CF1 mice, the plasmatic and cerebral pharmacokinetics of riluzole combined or not with minocycline. RESULTS our results showed that the kinetics of riluzole are not linear with dose, but that cerebral AUC0-infinity increase proportionally with plasmatic AUC0-infinity. At the dose of 10 mg/kg, the cerebral AUC0-infinity /plasmatic AUC0-infinity ratio was 4.6 in mdr1a (-/-) mice and 2.4 in mdr1a (+/+) mice. The combination of minocycline (170 mg/kg) and riluzole (10 mg/kg) induced a 2 fold increase in the cerebral AUC0-infinity of riluzole and induced a neuromuscular toxicity in mice. This effect of minocycline was not found at low concentration (10 mg/kg of minocycline). CONCLUSIONS if our results are confirmed in humans, riluzole cerebral concentrations could be predicted by plasmatic concentrations. Furthermore, the combination of high doses of minocycline with riluzole could induce neurological toxicity that lead to deceiving results in ALS clinical studies.
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Affiliation(s)
- Aline Milane
- Laboratoire de Barrières et Passage des Médicaments, EA 2706, Faculty of Pharmacy, Université Paris-Sud XI, Chatenay-Malabry, Chatenay-Malabry, France
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