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Boureau V, Nguyen VD, Masseboeuf A, Palomino A, Gautier E, Chatterjee J, Lequeux S, Auffret S, Vila L, Sousa R, Prejbeanu L, Cooper D, Dieny B. An electron holography study of perpendicular magnetic tunnel junctions nanostructured by deposition on pre-patterned conducting pillars. Nanoscale 2020; 12:17312-17318. [PMID: 32789322 DOI: 10.1039/d0nr03353g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The fabrication of multi-gigabit magnetic random access memory (MRAM) chips requires the patterning of magnetic tunnel junctions at very small dimensions (sub-30 nm) and a very dense pitch. This remains a challenge due to the difficulty in etching magnetic tunnel junction stacks. We previously proposed a strategy to circumvent this problem by depositing the magnetic tunnel junction material on prepatterned metallic pillars, resulting in the junction being naturally shaped during deposition. Upon electrical contact, the deposit on top of the pillars constitutes the magnetic storage element of the memory cell. However, in this process, the magnetic material is also deposited in the trenches between the pillars that might affect the memory cell behaviour. Here we study the magnetic interactions between the deposit on top of the pillars and in the trenches by electron holography, at room temperature and up to 325 °C. Supported by models, we show that the additional material in the trenches is not perturbing the working principle of the memory chip and can even play the role of a flux absorber which reduces the crosstalk between neighboring dots. Besides, in the studied sample, the magnetization of the 1.4 nm thick storage layer of the dots is found to switch from out-of-plane to an in-plane configuration above 125 °C, but gradually decreases with temperature. Electron holography is shown to constitute a very efficient tool for characterizing the micromagnetic configuration of the storage layer in MRAM cells.
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Affiliation(s)
- V Boureau
- Univ. Grenoble Alpes, CEA-LETI, F-38000 Grenoble, France.
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Lequeux S, Perrissin N, Grégoire G, Tillie L, Chavent A, Strelkov N, Vila L, Buda-Prejbeanu LD, Auffret S, Sousa RC, Prejbeanu IL, Di Russo E, Gautier E, Conlan AP, Cooper D, Dieny B. Thermal robustness of magnetic tunnel junctions with perpendicular shape anisotropy. Nanoscale 2020; 12:6378-6384. [PMID: 32134422 DOI: 10.1039/c9nr10366j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The concept of Perpendicular Shape Anisotropy STT-MRAM (PSA-STT-MRAM) has been recently proposed as a solution to enable the downsize scalability of STT-MRAM devices beyond the sub-20 nm technology node. For conventional p-STT-MRAM devices with sub-20 nm diameters, the perpendicular anisotropy arising from the MgO/CoFeB interface becomes too weak to ensure thermal stability of the storage layer. In addition, this interfacial anisotropy rapidly decreases with increasing temperature which constitutes a drawback in applications with a large range of operating temperatures. Here, we show that by using a PSA based storage layer, the source of anisotropy is much more robust against thermal fluctuations than the interfacial anisotropy, which allows considerable reduction of the temperature dependence of the coercivity. From a practical point of view, this is very interesting for applications having to operate on a wide range of temperatures (e.g. automotive -40 °C/+150 °C).
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Affiliation(s)
- S Lequeux
- Univ. Grenoble Alpes, CEA, CNRS, Grenoble INP, INAC-SPINTEC, 38000 Grenoble, France.
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Ma F, Darabi M, Canicio A, Lhomme M, Frisdal E, Rached F, Serrano C, Santos R, Brites F, Gautier E, Huby T, Carrié A, Bruckert E, Guerin M, Couvert P, Giral P, Le Goff W, Lesnik P, Guillas I, Kontush A. Capacity Of Hdl To Acquire Free Cholesterol From Triglyceride-Rich Lipoproteins Upon Their Lipolysis Underlies The U-Shape Relationship Between Hdl-Cholesterol And Cardiovascular Disease. Atherosclerosis 2019. [DOI: 10.1016/j.atherosclerosis.2019.06.314] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Houdayer F, Putois O, Babonneau ML, Chaumet H, Joly L, Juif C, Michon CC, Staraci S, Cretin E, Delanoue S, Charron P, Chassagne A, Edery P, Gautier E, Lapointe AS, Thauvin-Robinet C, Sanlaville D, Gargiulo M, Faivre L. Secondary findings from next generation sequencing: Psychological and ethical issues. Family and patient perspectives. Eur J Med Genet 2019; 62:103711. [PMID: 31265899 DOI: 10.1016/j.ejmg.2019.103711] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Revised: 06/04/2019] [Accepted: 06/28/2019] [Indexed: 01/25/2023]
Abstract
Access to active search for actionable secondary findings (SF) in diagnostic practice is a major psychological and ethical issue for genomic medicine. In this study, we analyzed the preferences of patients and their families regarding SF and identified the reporting procedures necessary for informed consent. We interviewed parents of patients with undiagnosed rare diseases potentially eligible for exome sequencing and patients affected by the diseases listed in the ACMG recommendations. Four focus groups (FG) were formed: parents of patients with undiagnosed rare diseases (FG1, n = 5); patients with hereditary cancers (FG2, n = 10); patients with hereditary cardiac conditions (FG3, n = 3); and patients with metabolic diseases (FG4, n = 3). Psychologists presented three broad topics for discussion: 1. Favorable or not to SF access, 2. Reporting procedures, 3. Equity of access. Discussions were recorded and analyzed using simplified Grounded Theory. Overall, 8 participants declared being favorable to SF because of the medical benefit (mainly FG1); 11 were unfavorable because of the psychological consequences (mainly FG2, FG3, FG4); 2 were ambivalent. The possibility of looking for SF in minors was debated. The 4 key information-based issues for participants ranked as follows: explanation of SF issues, autonomy of choice, importance of a reflection period, and quality of interactions between patients and professionals. Examining equity of access to SF led to philosophical discussions on quality of life. In conclusion, individual experience and life context (circumstances) were decisive in participants' expectations and fears regarding access to SF. Additional longitudinal studies based on actual SF disclosure announcements are needed to establish future guidelines.
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Affiliation(s)
- F Houdayer
- Genetics Department, Reference Centre for Developmental Disorders Centre East, HCL, Bron, France; Université de Paris, PCPP, F-92100 Boulogne-Billancourt, France
| | - O Putois
- SuLiSoM EA 3071, Univ. Strasbourg, France; Department of Psychiatry, Mental Health and Addictology, Strasbourg University Hospital, Strasbourg, France
| | | | - H Chaumet
- Genetics Department, Oncogenetics, HCL, Bron, France
| | - L Joly
- Genetics Department, The Centre of Reference for Rare Diseases East, Dijon University Hospital, France
| | - C Juif
- Genetics Department, The Centre of Reference for Rare Diseases East, Dijon University Hospital, France
| | - C C Michon
- Filière Cardiogen, GH APHP, Paris, France
| | - S Staraci
- Genetics Department, Reference Centre for Hereditary Cardiac Disorders, GH APHP, Paris, France; Clinical Psychology Laboratory, Psychopathology, Psychoanalysis (EA4056), Univ. Paris Descartes, Sorbonne Paris Cité, France
| | - E Cretin
- CIC, 1431 INSERM, CHU Besançon, France; Philosophy Laboratory « Logiques de l'Agir » EA2274, Univ. Bourgogne Franche-Comté, Besançon, France
| | | | - P Charron
- Filière Cardiogen, GH APHP, Paris, France; Genetics Department, Reference Centre for Hereditary Cardiac Disorders, GH APHP, Paris, France
| | - A Chassagne
- CIC, 1431 INSERM, CHU Besançon, France; FHU TRANSLAD, Dijon University Hospital, France
| | - P Edery
- Genetics Department, Reference Centre for Developmental Disorders Centre East, HCL, Bron, France; INSERM U1028, CNRS UMR5292, CRNL, GENDEV Team, Univ. Claude Bernard Lyon 1, Bron, France
| | - E Gautier
- Genetics Department, The Centre of Reference for Rare Diseases East, Dijon University Hospital, France
| | | | - C Thauvin-Robinet
- Genetics Department, The Centre of Reference for Rare Diseases East, Dijon University Hospital, France; FHU TRANSLAD, Dijon University Hospital, France
| | - D Sanlaville
- Genetics Department, Reference Centre for Developmental Disorders Centre East, HCL, Bron, France; INSERM U1028, CNRS UMR5292, CRNL, GENDEV Team, Univ. Claude Bernard Lyon 1, Bron, France
| | - M Gargiulo
- Université de Paris, PCPP, F-92100 Boulogne-Billancourt, France; Institute of Myology, GH APHP, Paris, France
| | - L Faivre
- Genetics Department, The Centre of Reference for Rare Diseases East, Dijon University Hospital, France; FHU TRANSLAD, Dijon University Hospital, France.
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Gautier E, Savarino J, Hoek J, Erbland J, Caillon N, Hattori S, Yoshida N, Albalat E, Albarede F, Farquhar J. Author Correction: 2600-years of stratospheric volcanism through sulfate isotopes. Nat Commun 2019; 10:2663. [PMID: 31209219 PMCID: PMC6572742 DOI: 10.1038/s41467-019-10539-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Affiliation(s)
- E Gautier
- Univ. Grenoble Alpes, CNRS, IRD, Grenoble INP, Institut des Géosciences de l'Environnement (IGE), 54 rue Molière, 38058, Grenoble Cedex 9, France.
| | - J Savarino
- Univ. Grenoble Alpes, CNRS, IRD, Grenoble INP, Institut des Géosciences de l'Environnement (IGE), 54 rue Molière, 38058, Grenoble Cedex 9, France.
| | - J Hoek
- Department of Geology and Earth System Science Interdisciplinary Center (ESSIC), University of Maryland, College Park, MD, 20742, USA
| | - J Erbland
- Univ. Grenoble Alpes, CNRS, IRD, Grenoble INP, Institut des Géosciences de l'Environnement (IGE), 54 rue Molière, 38058, Grenoble Cedex 9, France
| | - N Caillon
- Univ. Grenoble Alpes, CNRS, IRD, Grenoble INP, Institut des Géosciences de l'Environnement (IGE), 54 rue Molière, 38058, Grenoble Cedex 9, France
| | - S Hattori
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, G1-17, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa, 226-8502, Japan
| | - N Yoshida
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, G1-17, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa, 226-8502, Japan.,Earth-Life Science Institute, Tokyo Institute of Technology, 2-12-1-IE-1 Ookayama, Meguro-ku, Tokyo, 152-8550, Japan
| | - E Albalat
- Ecole Normale Supérieure de Lyon, CNRS and University of Lyon, 9 rue du Vercors, 69364, Lyon Cedex 7, France
| | - F Albarede
- Ecole Normale Supérieure de Lyon, CNRS and University of Lyon, 9 rue du Vercors, 69364, Lyon Cedex 7, France
| | - J Farquhar
- Department of Geology and Earth System Science Interdisciplinary Center (ESSIC), University of Maryland, College Park, MD, 20742, USA
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Demougeot L, Houdayer F, Pélissier A, Mohrez F, Thevenon J, Duffourd Y, Nambot S, Gautier E, Binquet C, Rossi M, Sanlaville D, Béjean S, Peyron C, Thauvin-Robinet C, Faivre L. [Changes in clinical practice related to the arrival of next-generation sequencing in the genetic diagnosis of developmental diseases]. Arch Pediatr 2018; 25:77-83. [PMID: 29395884 DOI: 10.1016/j.arcped.2017.12.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Revised: 09/29/2017] [Accepted: 12/10/2017] [Indexed: 12/11/2022]
Abstract
INTRODUCTION The arrival of high-throughput sequencing (HTS) has led to a sweeping change in the diagnosis of developmental abnormalities (DA) with or without intellectual deficiency (ID). With the prospect of deploying these new technologies, two questions have been raised: the representations of HTS among geneticists and the costs incurred due to these analyses. METHODS Geneticists attending a clinical genetics seminar were invited to complete a questionnaire. The statistical analysis was essentially descriptive and an analysis of costs was undertaken. RESULTS Of those responding to the questionnaire, 48% had already prescribed exome analysis and 25% had already had the occasion to disclose the results of such analyses. Ninety-six percent were aware that whole-exome sequencing (WES) had certain limits and 74% expressed misgivings concerning its use in medical practice. In parallel, the evaluation of costs showed that WES was less expensive than conventional procedures. DISCUSSION The survey revealed that geneticists had already come to terms with HTS as early as 2015. Among the major concerns expressed were the complexity of interpreting these tests and the many ethical implications. Geneticists seemed to be aware of the advantages but also the limits of these new technologies. The cost analysis raises questions about the place of HTS and in particular WES in the diagnostic work-up: should it be used early to obtain an etiological diagnosis rather than as the last resort? CONCLUSION It is essential for future generations of doctors and for the families concerned to learn about the concepts of HTS, which is set to become a major feature of new genomic medicine.
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Affiliation(s)
- L Demougeot
- Fédération hospitalo-universitaire médecine translationnelle et anomalies du développement (TRANSLAD), centre hospitalier universitaire de Dijon, 21079 Dijon, France; Filière de santé maladies rares anomalies du développement - déficience intellectuelle de causes rares (AnDDI-Rares), 21079 Dijon, France
| | - F Houdayer
- Centre de référence des anomalies de développement, service de génétique, hôpital Femme-Mère-Enfant, hospices Civils de Lyon, 69677 Bron, France
| | - A Pélissier
- Laboratoire d'économie et de gestion, pôle d'économie et de gestion, université de Bourgogne, 21066 Dijon, France
| | - F Mohrez
- Laboratoire d'économie et de gestion, pôle d'économie et de gestion, université de Bourgogne, 21066 Dijon, France
| | - J Thevenon
- Fédération hospitalo-universitaire médecine translationnelle et anomalies du développement (TRANSLAD), centre hospitalier universitaire de Dijon, 21079 Dijon, France; Filière de santé maladies rares anomalies du développement - déficience intellectuelle de causes rares (AnDDI-Rares), 21079 Dijon, France; Centre de génétique et centre de référence anomalies du développement et syndromes malformatifs de l'interrégion Est, centre hospitalier universitaire de Dijon, 21079 Dijon, France; Équipe génétique des anomalies du développement, UMR Inserm U1231, université de Bourgogne, 21079 Dijon, France
| | - Y Duffourd
- Fédération hospitalo-universitaire médecine translationnelle et anomalies du développement (TRANSLAD), centre hospitalier universitaire de Dijon, 21079 Dijon, France; Équipe génétique des anomalies du développement, UMR Inserm U1231, université de Bourgogne, 21079 Dijon, France
| | - S Nambot
- Fédération hospitalo-universitaire médecine translationnelle et anomalies du développement (TRANSLAD), centre hospitalier universitaire de Dijon, 21079 Dijon, France; Centre de génétique et centre de référence anomalies du développement et syndromes malformatifs de l'interrégion Est, centre hospitalier universitaire de Dijon, 21079 Dijon, France; Équipe génétique des anomalies du développement, UMR Inserm U1231, université de Bourgogne, 21079 Dijon, France
| | - E Gautier
- Fédération hospitalo-universitaire médecine translationnelle et anomalies du développement (TRANSLAD), centre hospitalier universitaire de Dijon, 21079 Dijon, France
| | - C Binquet
- Centre d'investigation clinique, centre hospitalier universitaire de Dijon, 21079 Dijon, France
| | - M Rossi
- Filière de santé maladies rares anomalies du développement - déficience intellectuelle de causes rares (AnDDI-Rares), 21079 Dijon, France; Centre de référence des anomalies de développement, service de génétique, hôpital Femme-Mère-Enfant, hospices Civils de Lyon, 69677 Bron, France
| | - D Sanlaville
- Filière de santé maladies rares anomalies du développement - déficience intellectuelle de causes rares (AnDDI-Rares), 21079 Dijon, France; Centre de référence des anomalies de développement, service de génétique, hôpital Femme-Mère-Enfant, hospices Civils de Lyon, 69677 Bron, France
| | - S Béjean
- Laboratoire d'économie et de gestion, pôle d'économie et de gestion, université de Bourgogne, 21066 Dijon, France
| | - C Peyron
- Laboratoire d'économie et de gestion, pôle d'économie et de gestion, université de Bourgogne, 21066 Dijon, France
| | - C Thauvin-Robinet
- Fédération hospitalo-universitaire médecine translationnelle et anomalies du développement (TRANSLAD), centre hospitalier universitaire de Dijon, 21079 Dijon, France; Filière de santé maladies rares anomalies du développement - déficience intellectuelle de causes rares (AnDDI-Rares), 21079 Dijon, France; Centre de génétique et centre de référence anomalies du développement et syndromes malformatifs de l'interrégion Est, centre hospitalier universitaire de Dijon, 21079 Dijon, France; Équipe génétique des anomalies du développement, UMR Inserm U1231, université de Bourgogne, 21079 Dijon, France
| | - L Faivre
- Fédération hospitalo-universitaire médecine translationnelle et anomalies du développement (TRANSLAD), centre hospitalier universitaire de Dijon, 21079 Dijon, France; Filière de santé maladies rares anomalies du développement - déficience intellectuelle de causes rares (AnDDI-Rares), 21079 Dijon, France; Centre de génétique et centre de référence anomalies du développement et syndromes malformatifs de l'interrégion Est, centre hospitalier universitaire de Dijon, 21079 Dijon, France; Équipe génétique des anomalies du développement, UMR Inserm U1231, université de Bourgogne, 21079 Dijon, France.
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Wahl P, Guidi M, Benninger E, Rönn K, Gautier E, Buclin T, Magnin JL, Livio F. The levels of vancomycin in the blood and the wound after the local treatment of bone and soft-tissue infection with antibiotic-loaded calcium sulphate as carrier material. Bone Joint J 2017; 99-B:1537-1544. [PMID: 29092996 DOI: 10.1302/0301-620x.99b11.bjj-2016-0298.r3] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [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: 04/20/2017] [Accepted: 06/08/2017] [Indexed: 11/05/2022]
Abstract
AIMS Calcium sulphate (CaSO4) is a resorbable material that can be used simultaneously as filler of a dead space and as a carrier for the local application of antibiotics. Our aim was to describe the systemic exposure and the wound fluid concentrations of vancomycin in patients treated with vancomycin-loaded CaSO4 as an adjunct to the routine therapy of bone and joint infections. PATIENTS AND METHODS A total of 680 post-operative blood and 233 wound fluid samples were available for analysis from 94 implantations performed in 87 patients for various infective indications. Up to 6 g of vancomycin were used. Non-compartmental pharmacokinetic analysis was performed on the data from 37 patients treated for an infection of the hip. RESULTS The overall systemic exposure remained within a safe range, even in patients with post-operative renal failure, none requiring removal of the pellets. Local concentrations were approximately ten times higher than with polymethylmethacrylate (PMMA) as a carrier, but remained below reported cell toxicity thresholds. Decreasing concentrations in wound fluid were observed over several weeks, but remained above the common minimum inhibitory concentrations for Staphylococcus up to three months post-operatively. CONCLUSION This study provides the first pharmacokinetic description of the local application of vancomycin with CaSO4 as a carrier, documenting slow release, systemic safety and a release profile far more interesting than from PMMA. In particular, considering in vitro data, concentrations of vancomycin active against staphylococcal biofilm were seen for several weeks. Cite this article: Bone Joint J 2017;99-B:1537-44.
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Affiliation(s)
- P Wahl
- HFR Fribourg - Cantonal Hospital, 1708 Fribourg, Switzerland, and Division of Orthopaedics and Traumatology, Cantonal Hospital Winterhur, 8401 Winterthur, Switzerland
| | - M Guidi
- Pharmacometrician, Division of Clinical Pharmacology, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland, and School of Pharmaceutical Sciences, University of Geneva and University of Lausanne, 1205 Geneva, Switzerland
| | - E Benninger
- Cantonal Hospital Winterhur, 8401 Winterthur, Switzerland
| | - K Rönn
- HFR Fribourg - Cantonal Hospital, 1708 Fribourg, Switzerland and Schulthess Clinic, 8008 Zürich, Switzerland
| | - E Gautier
- HFR Fribourg - Cantonal Hospital, 1708 Fribourg, Switzerland
| | - T Buclin
- Centre Hospitalier Universitaire Vaudois, 1011 Lausanne, Switzerland
| | - J-L Magnin
- HFR Fribourg - Cantonal Hospital, 1708 Fribourg, Switzerland
| | - F Livio
- Centre Hospitalier Universitaire Vaudois, 1011 Lausanne, Switzerland
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Samara E, Moriarty TF, Decosterd LA, Richards RG, Gautier E, Wahl P. Antibiotic stability over six weeks in aqueous solution at body temperature with and without heat treatment that mimics the curing of bone cement. Bone Joint Res 2017; 6:296-306. [PMID: 28515059 PMCID: PMC5457644 DOI: 10.1302/2046-3758.65.bjr-2017-0276.r1] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Accepted: 02/27/2017] [Indexed: 02/06/2023] Open
Abstract
OBJECTIVES Thermal stability is a key property in determining the suitability of an antibiotic agent for local application in the treatment of orthopaedic infections. Despite the fact that long-term therapy is a stated goal of novel local delivery carriers, data describing thermal stability over a long period are scarce, and studies that avoid interference from specific carrier materials are absent from the orthopaedic literature. METHODS In this study, a total of 38 frequently used antibiotic agents were maintained at 37°C in saline solution, and degradation and antibacterial activity assessed over six weeks. The impact of an initial supplementary heat exposure mimicking exothermically curing bone cement was also tested as this material is commonly used as a local delivery vehicle. Antibiotic degradation was assessed by liquid chromatography coupled to mass spectrometry, or by immunoassays, as appropriate. Antibacterial activity over time was determined by the Kirby-Bauer disk diffusion assay. RESULTS The heat exposure mimicking curing bone cement had minimal effect on stability for most antibiotics, except for gentamicin which experienced approximately 25% degradation as measured by immunoassay. Beta-lactam antibiotics were found to degrade quite rapidly at 37°C regardless of whether there was an initial heat exposure. Excellent long-term stability was observed for aminoglycosides, glycopeptides, tetracyclines and quinolones under both conditions. CONCLUSIONS This study provides a valuable dataset for orthopaedic surgeons considering local application of antibiotics, and for material scientists looking to develop next-generation controlled or extended-release antibiotic carriers.Cite this article: E. Samara, T. F. Moriarty, L. A. Decosterd, R. G. Richards, E. Gautier, P. Wahl. Antibiotic stability over six weeks in aqueous solution at body temperature with and without heat treatment that mimics the curing of bone cement. Bone Joint J 2017;6:296-306. DOI: 10.1302/2046-3758.65.BJR-2017-0276.R1.
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Affiliation(s)
- E Samara
- AO Research Institute Davos, Davos, Switzerland
| | | | - L A Decosterd
- Head of the Laboratory of Clinical Pharmacology, University Hospital Lausanne and University of Lausanne, Lausanne, Switzerland
| | | | - E Gautier
- Head of the Department of Orthopaedic Surgery, HFR Fribourg - Cantonal Hospital, Fribourg, Switzerland
| | - P Wahl
- Division for Orthopaedic and Trauma Surgery, Cantonal Hospital Winterthur, Winterthur, Switzerland
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Laude E, Gautier E, Archambault P, Denis S. Cinétique de transformation des alliages de titane en fonction du traitement thermomécanique. Etude expérimentale et calcul. ACTA ACUST UNITED AC 2017. [DOI: 10.1051/metal/199693091067] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Delachat F, Le Drogoff B, Constancias C, Delprat S, Gautier E, Chaker M, Margot J. Fabrication of high aspect ratio tungsten nanostructures on ultrathin c-Si membranes for extreme UV applications. Nanotechnology 2016; 27:025304. [PMID: 26630379 DOI: 10.1088/0957-4484/27/2/025304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
In this work, we demonstrate a full process for fabricating high aspect ratio diffraction optics for extreme ultraviolet lithography. The transmissive optics consists in nanometer scale tungsten patterns standing on flat, ultrathin (100 nm) and highly transparent (>85% at 13.5 nm) silicon membranes (diameter of 1 mm). These tungsten patterns were achieved using an innovative pseudo-Bosch etching process based on an inductively coupled plasma ignited in a mixture of SF6 and C4F8. Circular ultra-thin Si membranes were fabricated through a state-of-the-art method using direct-bonding with thermal difference. The silicon membranes were sputter-coated with a few hundred nanometers (100-300 nm) of stress-controlled tungsten and a very thin layer of chromium. Nanoscale features were written in a thin resist layer by electron beam lithography and transferred onto tungsten by plasma etching of both the chromium hard mask and the tungsten layer. This etching process results in highly anisotropic tungsten features at room temperature. The homogeneity and the aspect ratio of the advanced pattern transfer on the membranes were characterized with scanning electron microscopy after focus ion beam milling. An aspect ratio of about 6 for 35 nm size pattern is successfully obtained on a 1 mm diameter 100 nm thick Si membrane. The whole fabrication process is fully compatible with standard industrial semiconductor technology.
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Affiliation(s)
- F Delachat
- Université de Montréal, C.P. 6128, Montréal, QC H3C 3J7, Canada. INRS-EMT, 1650 Boul. Lionel-Boulet, Varennes, Québec J3X 1S2, Canada
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Lefebvre M, Sanlaville D, Marle N, Thauvin-Robinet C, Gautier E, Chehadeh SE, Mosca-Boidron AL, Thevenon J, Edery P, Alex-Cordier MP, Till M, Lyonnet S, Cormier-Daire V, Amiel J, Philippe A, Romana S, Malan V, Afenjar A, Marlin S, Chantot-Bastaraud S, Bitoun P, Heron B, Piparas E, Morice-Picard F, Moutton S, Chassaing N, Vigouroux-Castera A, Lespinasse J, Manouvrier-Hanu S, Boute-Benejean O, Vincent-Delorme C, Petit F, Meur NL, Marti-Dramard M, Guerrot AM, Goldenberg A, Redon S, Ferrec C, Odent S, Caignec CL, Mercier S, Gilbert-Dussardier B, Toutain A, Arpin S, Blesson S, Mortemousque I, Schaefer E, Martin D, Philip N, Sigaudy S, Busa T, Missirian C, Giuliano F, Benailly HK, Kien PKV, Leheup B, Benneteau C, Lambert L, Caumes R, Kuentz P, François I, Heron D, Keren B, Cretin E, Callier P, Julia S, Faivre L. Genetic counselling difficulties and ethical implications of incidental findings from array-CGH: a 7-year national survey. Clin Genet 2016; 89:630-5. [PMID: 26582393 DOI: 10.1111/cge.12696] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [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: 08/01/2015] [Revised: 11/11/2015] [Accepted: 11/16/2015] [Indexed: 11/29/2022]
Abstract
Microarray-based comparative genomic hybridization (aCGH) is commonly used in diagnosing patients with intellectual disability (ID) with or without congenital malformation. Because aCGH interrogates with the whole genome, there is a risk of being confronted with incidental findings (IF). In order to anticipate the ethical issues of IF with the generalization of new genome-wide analysis technologies, we questioned French clinicians and cytogeneticists about the situations they have faced regarding IF from aCGH. Sixty-five IF were reported. Forty corresponded to autosomal dominant diseases with incomplete penetrance, 7 to autosomal dominant diseases with complete penetrance, 14 to X-linked diseases, and 4 were heterozygotes for autosomal recessive diseases with a high prevalence of heterozygotes in the population. Therapeutic/preventive measures or genetic counselling could be argued for all cases except four. These four IF were intentionally not returned to the patients. Clinicians reported difficulties in returning the results in 29% of the cases, mainly when the question of IF had not been anticipated. Indeed, at the time of the investigation, only 48% of the clinicians used consents mentioning the risk of IF. With the emergence of new technologies, there is a need to report such national experiences; they show the importance of pre-test information on IF.
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Affiliation(s)
- M Lefebvre
- Centre de Génétique et Centre de Référence Anomalies du Développement et Syndromes Malformatifs de l'Est, FHU-TRANSLAD, Dijon, France.,Génétique des Anomalies du Développement, Université de Bourgogne, Dijon, France.,FHU-TRANSLAD, Université de Bourgogne, Dijon, France
| | - D Sanlaville
- Genetics Service, Hospices Civils de Lyon, Hôpital Femme-Mère-Enfant, and Eastern Biology and Pathology Centre, Lyon, France
| | - N Marle
- Centre de Génétique et Centre de Référence Anomalies du Développement et Syndromes Malformatifs de l'Est, FHU-TRANSLAD, Dijon, France.,Génétique des Anomalies du Développement, Université de Bourgogne, Dijon, France
| | - C Thauvin-Robinet
- Centre de Génétique et Centre de Référence Anomalies du Développement et Syndromes Malformatifs de l'Est, FHU-TRANSLAD, Dijon, France.,Génétique des Anomalies du Développement, Université de Bourgogne, Dijon, France.,FHU-TRANSLAD, Université de Bourgogne, Dijon, France
| | - E Gautier
- Centre de Génétique et Centre de Référence Anomalies du Développement et Syndromes Malformatifs de l'Est, FHU-TRANSLAD, Dijon, France.,FHU-TRANSLAD, Université de Bourgogne, Dijon, France
| | - S E Chehadeh
- Centre de Génétique et Centre de Référence Anomalies du Développement et Syndromes Malformatifs de l'Est, FHU-TRANSLAD, Dijon, France.,Génétique des Anomalies du Développement, Université de Bourgogne, Dijon, France
| | - A-L Mosca-Boidron
- Centre de Génétique et Centre de Référence Anomalies du Développement et Syndromes Malformatifs de l'Est, FHU-TRANSLAD, Dijon, France.,Génétique des Anomalies du Développement, Université de Bourgogne, Dijon, France
| | - J Thevenon
- Centre de Génétique et Centre de Référence Anomalies du Développement et Syndromes Malformatifs de l'Est, FHU-TRANSLAD, Dijon, France.,Génétique des Anomalies du Développement, Université de Bourgogne, Dijon, France.,FHU-TRANSLAD, Université de Bourgogne, Dijon, France
| | - P Edery
- Genetics Service, Hospices Civils de Lyon, Hôpital Femme-Mère-Enfant, and Eastern Biology and Pathology Centre, Lyon, France
| | - M-P Alex-Cordier
- Genetics Service, Hospices Civils de Lyon, Hôpital Femme-Mère-Enfant, and Eastern Biology and Pathology Centre, Lyon, France
| | - M Till
- Genetics Service, Hospices Civils de Lyon, Hôpital Femme-Mère-Enfant, and Eastern Biology and Pathology Centre, Lyon, France
| | - S Lyonnet
- Département de Génétique, Hôpital Necker-Enfants Malades, Paris, France
| | - V Cormier-Daire
- Département de Génétique, Hôpital Necker-Enfants Malades, Paris, France
| | - J Amiel
- Département de Génétique, Hôpital Necker-Enfants Malades, Paris, France
| | - A Philippe
- Département de Génétique, Hôpital Necker-Enfants Malades, Paris, France
| | - S Romana
- Département de Génétique, Hôpital Necker-Enfants Malades, Paris, France
| | - V Malan
- Département de Génétique, Hôpital Necker-Enfants Malades, Paris, France
| | - A Afenjar
- Service de Génétique, Hôpital Pitié Salpêtrière, Paris, France
| | - S Marlin
- Département de Génétique, Hôpital Necker-Enfants Malades, Paris, France
| | - S Chantot-Bastaraud
- APHP, Hôpital Armand Trousseau, Service de Génétique et d'Embryologie Médicales, Paris, France
| | - P Bitoun
- Service de Pédiatrie, Hôpital Jean Verdier, Assistance Publique - Hôpitaux de Paris, Paris, France
| | - B Heron
- Department of Neuropediatrics, Armand Trousseau Hospital, APHP, Paris, France
| | - E Piparas
- Cytogenetics Laboratory, Jean Verdier Hospital, Bondy, France
| | - F Morice-Picard
- Department of Clinical Genetics, Bordeaux Children's Hospital, CHU de Bordeaux, Bordeaux, France
| | - S Moutton
- Department of Clinical Genetics, Bordeaux Children's Hospital, CHU de Bordeaux, Bordeaux, France
| | - N Chassaing
- Service de Génétique Médicale, Hôpital Purpan, CHU Toulouse, Université Paul Sabatier Toulouse, Toulouse, France
| | - A Vigouroux-Castera
- Service de Génétique Médicale, Hôpital Purpan, CHU Toulouse, Université Paul Sabatier Toulouse, Toulouse, France
| | - J Lespinasse
- Cytogenetics Laboratory, Chambery Hospital, Chambery, France
| | - S Manouvrier-Hanu
- Service de Génétique Clinique, Hôpital Jeanne de Flandre, CHRU, Lille, France
| | - O Boute-Benejean
- Service de Génétique Clinique, Hôpital Jeanne de Flandre, CHRU, Lille, France
| | - C Vincent-Delorme
- Service de Génétique Clinique, Hôpital Jeanne de Flandre, CHRU, Lille, France
| | - F Petit
- Service de Génétique Clinique, Hôpital Jeanne de Flandre, CHRU, Lille, France
| | - N L Meur
- Cytogenetics Laboratory, Etablissement Français du Sang de Normandie, Rouen, France
| | - M Marti-Dramard
- Unité de Génétique Clinique, Hôpital Nord, CHU, Amiens, France
| | - A-M Guerrot
- Service de Pédiatrie Néonatale et Réanimation, Centre D'éducation Fonctionnelle de l'enfant, CHU de Rouen, Rouen, France
| | - A Goldenberg
- Unité de Génétique Médicale, CHU Rouen, Rouen, France
| | - S Redon
- Laboratoire de Génétique Moléculaire, CHU, Brest, France
| | - C Ferrec
- Laboratoire de Génétique Moléculaire, CHU, Brest, France
| | - S Odent
- Service de Génétique Clinique, CLAD-Ouest, Hôpital Sud, Rennes, France
| | - C L Caignec
- Service de Génétique Médicale, Unité de Génétique Clinique, CLAD-Ouest, CHU de Nantes, Nantes, France
| | - S Mercier
- Service de Génétique Médicale, Unité de Génétique Clinique, CLAD-Ouest, CHU de Nantes, Nantes, France
| | | | - A Toutain
- Service de Génétique, Centre Hospitalo-Universitaire, Tours, France
| | - S Arpin
- Service de Génétique, Centre Hospitalo-Universitaire, Tours, France
| | - S Blesson
- Service de Génétique, Centre Hospitalo-Universitaire, Tours, France
| | - I Mortemousque
- Service de Génétique, Centre Hospitalo-Universitaire, Tours, France
| | - E Schaefer
- Service de Génétique Médicale, Hôpital de Hautepierre, Strasbourg, France
| | - D Martin
- Service de Génétique Médicale, Hôpital du Mans, Le Mans, France
| | - N Philip
- Département de Génétique Médicale, Hôpital d'Enfants de La Timone, Marseille, France
| | - S Sigaudy
- Département de Génétique Médicale, Hôpital d'Enfants de La Timone, Marseille, France
| | - T Busa
- Département de Génétique Médicale, Hôpital d'Enfants de La Timone, Marseille, France
| | - C Missirian
- Département de Génétique Médicale, Hôpital d'Enfants de La Timone, Marseille, France
| | - F Giuliano
- Service de Génétique Médicale, Hôpital de l'Archet II, CHU de Nice, Nice, France
| | - H K Benailly
- Service de Génétique Médicale, Hôpital de l'Archet II, CHU de Nice, Nice, France
| | - P K V Kien
- Service de Génétique Médicale, Hôpital Caremeau, CHU de Nimes, Nimes, France
| | - B Leheup
- CHU de Nancy Pole Enfant, Centre de Référence Maladies Rares CLAD Est, Service de Médecine Infantile III et Génétique Clinique, Nancy, France
| | - C Benneteau
- CHU de Nancy Pole Enfant, Centre de Référence Maladies Rares CLAD Est, Service de Médecine Infantile III et Génétique Clinique, Nancy, France
| | - L Lambert
- CHU de Nancy Pole Enfant, Centre de Référence Maladies Rares CLAD Est, Service de Médecine Infantile III et Génétique Clinique, Nancy, France
| | - R Caumes
- APHP, Hôpital Robert Debré, Service de Neurologie Pédiatrique, Paris, France
| | - P Kuentz
- Service de génétique, Centre Hospitalier Universitaire de Besançon, Besançon, France
| | | | - D Heron
- Service de Génétique, APHP, Groupe Hospitalier de la Pitié-Salpétrière, Paris, France
| | - B Keren
- Service de Génétique, APHP, Groupe Hospitalier de la Pitié-Salpétrière, Paris, France
| | - E Cretin
- FHU-TRANSLAD, Université de Bourgogne, Dijon, France.,Espace Régional Éthique Bourgogne-Franche Comté, CHU, Besançon, France
| | - P Callier
- Centre de Génétique et Centre de Référence Anomalies du Développement et Syndromes Malformatifs de l'Est, FHU-TRANSLAD, Dijon, France.,Génétique des Anomalies du Développement, Université de Bourgogne, Dijon, France.,FHU-TRANSLAD, Université de Bourgogne, Dijon, France
| | - S Julia
- Service de Génétique Médicale, Hôpital Purpan, CHU Toulouse, Université Paul Sabatier Toulouse, Toulouse, France
| | - L Faivre
- Centre de Génétique et Centre de Référence Anomalies du Développement et Syndromes Malformatifs de l'Est, FHU-TRANSLAD, Dijon, France.,Génétique des Anomalies du Développement, Université de Bourgogne, Dijon, France.,FHU-TRANSLAD, Université de Bourgogne, Dijon, France
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12
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Messanvi A, Zhang H, Neplokh V, Julien FH, Bayle F, Foldyna M, Bougerol C, Gautier E, Babichev A, Durand C, Eymery J, Tchernycheva M. Investigation of Photovoltaic Properties of Single Core-Shell GaN/InGaN Wires. ACS Appl Mater Interfaces 2015; 7:21898-21906. [PMID: 26378593 DOI: 10.1021/acsami.5b06473] [Citation(s) in RCA: 12] [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] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We report the investigation of the photovoltaic properties of core-shell GaN/InGaN wires. The radial structure is grown on m-plane {11̅00} facets of self-assembled c̅-axis GaN wires elaborated by metal-organic vapor phase epitaxy (MOVPE) on sapphire substrates. The conversion efficiency of wires with radial shell composed of thick In0.1Ga0.9N layers and of 30× In0.18Ga0.82N/GaN quantum wells are compared. We also investigate the impact of the contact nature and layout on the carrier collection and photovoltaic performances. The contact optimization results in an improved conversion efficiency of 0.33% and a fill factor of 83% under 1 sun (AM1.5G) on single wires with a quantum well-based active region. Photocurrent spectroscopy demonstrates that the response ascribed to the absorption of InGaN/GaN quantum wells appears at wavelengths shorter than 440 nm.
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Affiliation(s)
- A Messanvi
- Institut d'Electronique Fondamentale, UMR CNRS 8622, University Paris Sud 11, 91405 Orsay, France
- Université Grenoble Alpes , 38000 Grenoble, France
- CEA, INAC-SP2M, "Nanophysique et semiconducteurs" group, 38000 Grenoble, France
| | - H Zhang
- Institut d'Electronique Fondamentale, UMR CNRS 8622, University Paris Sud 11, 91405 Orsay, France
| | - V Neplokh
- Institut d'Electronique Fondamentale, UMR CNRS 8622, University Paris Sud 11, 91405 Orsay, France
| | - F H Julien
- Institut d'Electronique Fondamentale, UMR CNRS 8622, University Paris Sud 11, 91405 Orsay, France
| | - F Bayle
- Institut d'Electronique Fondamentale, UMR CNRS 8622, University Paris Sud 11, 91405 Orsay, France
| | - M Foldyna
- LPICM, Ecole Polytechnique, CNRS, 91128 Palaiseau, France
| | - C Bougerol
- Université Grenoble Alpes , 38000 Grenoble, France
- CNRS, Inst. NEEL, 38042 Grenoble, France
| | - E Gautier
- Université Grenoble Alpes , 38000 Grenoble, France
- CEA, INAC-SPINTEC, 38000 Grenoble, France
| | - A Babichev
- ITMO University , 197101 St. Petersburg, Russia
| | - C Durand
- Université Grenoble Alpes , 38000 Grenoble, France
- CEA, INAC-SP2M, "Nanophysique et semiconducteurs" group, 38000 Grenoble, France
| | - J Eymery
- Université Grenoble Alpes , 38000 Grenoble, France
- CEA, INAC-SP2M, "Nanophysique et semiconducteurs" group, 38000 Grenoble, France
| | - M Tchernycheva
- Institut d'Electronique Fondamentale, UMR CNRS 8622, University Paris Sud 11, 91405 Orsay, France
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13
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Heuberger R, Wahl P, Krieg J, Gautier E. Low in vitro third-body wear on total hip prostheses induced by calcium sulphate used for local antibiotic therapy. Eur Cell Mater 2014; 28:246-57. [PMID: 25340804 DOI: 10.22203/ecm.v028a17] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
In case of implant associated infection, implant preservation is associated with high failure rates. Therefore, a removal or exchange of the implant is most often mandatory for treatment success. Alternatively, under certain conditions, local antibiotic delivery can be applied - preserving the implant, using for example calcium sulphate as a resorbable carrier. In this work, third-body wear on total hip prostheses caused by calcium sulphate particles was tested in a hip simulator. Inlays made of ultra-high-molecular-weight polyethylene (UHMWPE) and cross-linked polyethylene (XLPE) against 28 mm CoCrMo heads and 36 mm alumina pairings were tested in triplicate, both with and without calcium sulphate particles in the test liquid. Neither the alumina articulations nor the CoCrMo heads were affected by the calcium sulphate particles since calcium sulphate is a relatively soft material. The polyethylene inlays showed 39-89 % higher wear during exposure compared to references, but wear returned to normal when no more particles were added. Thus, calcium sulphate might be used as antibiotic carrier even in the presence of total hip prostheses without fearing excessive third-body wear.
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Affiliation(s)
- R Heuberger
- RMS Foundation, Bischmattstr 12, CH-2544 Bettlach,
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14
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Rouard H, Birebent B, Vaquer G, Gautier E. [Cord blood banking: from theory to an application]. Transfus Clin Biol 2013; 20:95-8. [PMID: 23587613 DOI: 10.1016/j.tracli.2013.02.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Cord blood units are now routinely used as an alternative source of haematopoietic stem cells from unrelated donors for allogeneic transplantation. In France, cord blood units are collected in a network of more than 70 maternity hospitals in relationship with 11 public cord blood banks part of the Réseau Français de Sang Placentaire. Unrelated cord blood unit donation is an altruistic act, anonymous and free. Donors are selected on medical criteria. Then, only cord blood unit containing more than 100 × 10(7) total nucleated cells and more than 1.8 × 10(6) CD34+ cells are cryopreserved according to Réseau Français de Sang Placentaire recommendations. Cord blood units qualification will be completed by viral and functional testings and the clinical outcome of the newborn child 6 weeks after the collection. Since the last 5 years, cord blood banking growing in France in order to enhance the French registry of volunteer donors by increasing both the number and diversity of the donors listed and make available cord blood banking for transplantation.
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Affiliation(s)
- H Rouard
- EA3952, laboratoire de bio-ingénierie cellulaire, tissulaire et sanguine, faculté de médecine, université Paris-Est, Créteil, France.
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15
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Coron F, Rousseau T, Jondeau G, Gautier E, Binquet C, Gouya L, Cusin V, Odent S, Dulac Y, Plauchu H, Collignon P, Delrue MA, Leheup B, Joly L, Huet F, Thevenon J, Mace G, Cassini C, Thauvin-Robinet C, Wolf JE, Hanna N, Sagot P, Boileau C, Faivre L. What do French patients and geneticists think about prenatal and preimplantation diagnoses in Marfan syndrome? Prenat Diagn 2012; 32:1318-23. [DOI: 10.1002/pd.4008] [Citation(s) in RCA: 12] [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: 12/23/2022]
Affiliation(s)
- F. Coron
- Centre de Génétique et Centre de Référence Anomalies du Développement et Syndromes Malformatifs, Hôpital d'Enfants; CHU Dijon et Université de Bourgogne; Dijon France
| | - T. Rousseau
- Centre Pluridisciplinaire de Diagnostic Anténatal, Maternité; CHU Dijon et Université de Bourgogne; Dijon France
| | - G. Jondeau
- Centre National de Référence pour le Syndrome de Marfan et Apparentés; Hôpital Bichat; Paris France
- INSERM U698; Faculté Paris 7; Paris France
| | - E. Gautier
- Centre d'Investigation Clinique et Epidémiologie Clinique; CHU Dijon et Université de Bourgogne; Dijon France
| | - C. Binquet
- Centre d'Investigation Clinique et Epidémiologie Clinique; CHU Dijon et Université de Bourgogne; Dijon France
| | - L. Gouya
- Centre National de Référence pour le Syndrome de Marfan et Apparentés; Hôpital Bichat; Paris France
- INSERM U698; Faculté Paris 7; Paris France
| | - V. Cusin
- Centre National de Référence pour le Syndrome de Marfan et Apparentés; Hôpital Bichat; Paris France
- INSERM U698; Faculté Paris 7; Paris France
| | - S. Odent
- Service de Génétique et Centre de Référence Anomalies du Développement et Syndromes Malformatifs; Hôpital Pontchaillout; Rennes France
| | - Y. Dulac
- Cardiologie Pédiatrique; CHU Toulouse; Toulouse France
| | - H. Plauchu
- Service de Génétique; HFME, Hospices Civils de Lyon; Lyon France
| | - P. Collignon
- Service de Génétique; Assistance Publique des Hôpitaux de Marseille; Marseille France
| | - M.-A. Delrue
- Service de Génétique; CHU Bordeaux; Bordeaux France
| | - B. Leheup
- Service de Génétique; CHU Nancy; Nancy France
| | - L. Joly
- Centre de Génétique et Centre de Référence Anomalies du Développement et Syndromes Malformatifs, Hôpital d'Enfants; CHU Dijon et Université de Bourgogne; Dijon France
| | - F. Huet
- Centre de Génétique et Centre de Référence Anomalies du Développement et Syndromes Malformatifs, Hôpital d'Enfants; CHU Dijon et Université de Bourgogne; Dijon France
- Equipe d'Accueil GAD, IFR 100 Santé STIC; Université de Bourgogne; Dijon France
| | - J. Thevenon
- Centre de Génétique et Centre de Référence Anomalies du Développement et Syndromes Malformatifs, Hôpital d'Enfants; CHU Dijon et Université de Bourgogne; Dijon France
- Equipe d'Accueil GAD, IFR 100 Santé STIC; Université de Bourgogne; Dijon France
| | - G. Mace
- Centre Pluridisciplinaire de Diagnostic Anténatal, Maternité; CHU Dijon et Université de Bourgogne; Dijon France
| | - C. Cassini
- Centre de Génétique et Centre de Référence Anomalies du Développement et Syndromes Malformatifs, Hôpital d'Enfants; CHU Dijon et Université de Bourgogne; Dijon France
| | - C. Thauvin-Robinet
- Centre de Génétique et Centre de Référence Anomalies du Développement et Syndromes Malformatifs, Hôpital d'Enfants; CHU Dijon et Université de Bourgogne; Dijon France
- Equipe d'Accueil GAD, IFR 100 Santé STIC; Université de Bourgogne; Dijon France
| | - J. E. Wolf
- Service de Cardiologie; CHU Dijon; Dijon France
| | - N. Hanna
- Laboratoire de Biologie Moléculaire; Hôpital Ambroise Paré; Boulogne France
| | - P. Sagot
- Centre Pluridisciplinaire de Diagnostic Anténatal, Maternité; CHU Dijon et Université de Bourgogne; Dijon France
| | - C. Boileau
- Service de Cardiologie; CHU Dijon; Dijon France
| | - L. Faivre
- Centre de Génétique et Centre de Référence Anomalies du Développement et Syndromes Malformatifs, Hôpital d'Enfants; CHU Dijon et Université de Bourgogne; Dijon France
- Equipe d'Accueil GAD, IFR 100 Santé STIC; Université de Bourgogne; Dijon France
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16
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Avila M, Gigot N, Aral B, Callier P, Gautier E, Thevenon J, Pasquier L, Lopez E, Gueneau L, Duplomb L, Goldenberg A, Baumann C, Cormier V, Marlin S, Masurel-Paulet A, Huet F, Attié-Bitach T, Faivre L, Thauvin-Robinet C. GLI3 is rarely implicated in OFD syndromes with midline abnormalities. Hum Mutat 2011; 32:1332-3. [PMID: 21796731 DOI: 10.1002/humu.21570] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2011] [Accepted: 07/03/2011] [Indexed: 11/10/2022]
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17
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Faivre L, Collod-Beroud G, Adès L, Arbustini E, Child A, Callewaert BL, Loeys B, Binquet C, Gautier E, Mayer K, Arslan-Kirchner M, Grasso M, Beroud C, Hamroun D, Bonithon-Kopp C, Plauchu H, Robinson PN, De Backer J, Coucke P, Francke U, Bouchot O, Wolf JE, Stheneur C, Hanna N, Detaint D, De Paepe A, Boileau C, Jondeau G. The new Ghent criteria for Marfan syndrome: what do they change? Clin Genet 2011; 81:433-42. [DOI: 10.1111/j.1399-0004.2011.01703.x] [Citation(s) in RCA: 74] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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18
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Dudda M, Gueleryuez A, Gautier E, Busato A, Roeder C. Authors' Reply. J Orthop Surg (Hong Kong) 2011. [DOI: 10.1177/230949901101900131] [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] [Indexed: 11/15/2022] Open
Affiliation(s)
- Marcel Dudda
- Department of Orthopaedic Surgery, Inselspital Berne, University of Berne, Freiburgstrasse 10, CH-3010, Berne, Switzerland
| | - A Gueleryuez
- Department of Orthopaedic Surgery, Inselspital Berne, University of Berne, Freiburgstrasse 10, CH-3010, Berne, Switzerland
| | - E Gautier
- Department of Orthopaedic Surgery, Inselspital Berne, University of Berne, Freiburgstrasse 10, CH-3010, Berne, Switzerland
| | - A Busato
- Department of Orthopaedic Surgery, Inselspital Berne, University of Berne, Freiburgstrasse 10, CH-3010, Berne, Switzerland
| | - C Roeder
- Department of Orthopaedic Surgery, Inselspital Berne, University of Berne, Freiburgstrasse 10, CH-3010, Berne, Switzerland
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Durand C, Vallée C, Dubourdieu C, Bonvalot M, Gautier E, Joubert O. Silicate interface formation during the deposition of Y2O3 on Si. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-786-e6.15] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
ABSTRACTThe interface behaviour during PE-MOCVD deposition of Y2O3 thin films on Si/SiO2 (8 Å) substrates has been investigated by XPS, TEM and OES analysis. The deposition process involves the sequential injection of MO precursors into the CVD chamber and is assisted by an O2 plasma. The injection frequency greatly influences the interface behaviour in terms of thickness and composition. The O2 plasma and the solvent also greatly affect substrate oxidation, and subsequently interface formation during deposition. Several mechanisms are discussed to account for substrate oxidation in view of a careful control of interface formation.
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Gautier E, Cortay V, Betizeau M, Doerflinger N, Kennedy H, Dehay C. [P1.06]: Area‐specific dynamics of proliferation and migration during primate corticogenesis: Role of the modular protein p27
kip1. Int J Dev Neurosci 2010. [DOI: 10.1016/j.ijdevneu.2010.07.047] [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] Open
Affiliation(s)
- E. Gautier
- Stem Cell and Brain Research InstituteFrance
| | - V. Cortay
- Stem Cell and Brain Research InstituteFrance
| | - M. Betizeau
- Stem Cell and Brain Research InstituteFrance
| | | | - H. Kennedy
- Stem Cell and Brain Research InstituteFrance
| | - C. Dehay
- Stem Cell and Brain Research InstituteFrance
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Jacobi M, Reischl N, Wahl P, Gautier E, Jakob RP. Acute isolated injury of the posterior cruciate ligament treated by a dynamic anterior drawer brace: a preliminary report. ACTA ACUST UNITED AC 2010; 92:1381-4. [PMID: 20884975 DOI: 10.1302/0301-620x.92b10.24807] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
We investigated the role of a functional brace worn for four months in the treatment of patients with an acute isolated tear of the posterior cruciate ligament to determine whether reduction of the posterior tibial translation during the healing period would give an improved final position of the tibia. The initial and follow-up stability was tested by Rolimeter arthrometry and radiography. The clinical outcome was evaluated using the Lysholm score, the Tegner score and the International Knee Documentation Committee scoring system at follow-up at one and two years. In all, 21 patients were studied, 21 of whom had completed one-year and 17 a two-year follow-up. The initial mean posterior sag (Rolimeter measurement) of 7.1 mm (5 to 10) was significantly reduced after 12 months to a mean of 2.3 mm (0 to 6, p < 0.001) and to a mean of 3.2 mm (2 to 7, p = 0.001) after 24 months. Radiological measurement gave similar results. The mean pre-injury Lysholm score was normal at 98 (95 to 100). At follow-up, a slight decrease in the mean values was observed to 94.0 (79 to 100, p = 0.001) at one year and 94.0 (88 to 100, p = 0.027, at two years). We concluded that the posterior cruciate ligament has an intrinsic healing capacity and, if the posteriorly translated tibia is reduced to a physiological position, it can heal with less attentuation. The applied treatment produces a good to excellent functional result.
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Affiliation(s)
- M Jacobi
- Department of Orthopaedic Surgery, HFR Fribourg Hôpital Cantonal, Chemin des Pensionnats 2-6, 1708 Fribourg, Switzerland.
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22
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Dudda M, Gueleryuez A, Gautier E, Busato A, Roeder C. Risk factors for early dislocation after total hip arthroplasty: a matched case-control study. J Orthop Surg (Hong Kong) 2010; 18:179-83. [PMID: 20808008 DOI: 10.1177/230949901001800209] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
PURPOSE To evaluate risk factors for early dislocation after primary total hip arthroplasty (THA). METHODS Records of 175 cases with dislocation during hospitalisation after THA and 651 controls without dislocation were reviewed. Cases and controls were matched for age, gender, body mass index classification, primary diagnosis, cup design, hospital, and year of intervention. Version and inclination of the acetabular component and version of the femoral component were assessed intra- and post-operatively. Various risk factors were analysed, including surgical approach, cup positioning, combined cup and stem positioning, and femoral head size. RESULTS The posterior approach was 6 fold more prone to dislocation (odds ratio [OR]=6.3, p<0.018) than the anterolateral or straight lateral approach. With regard to combined cup and stem positioning, the acceptable position was at significantly higher risk of dislocation than the ideal position (OR=2.59, p=0.033). Larger femoral head sizes were associated with significantly lower risk of dislocation (OR=0.84, p=0.02). CONCLUSION Surgical approach, combined cup and stem positioning, and femoral head size were significant risk factors for dislocation during hospitalisation.
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Affiliation(s)
- Marcel Dudda
- Department of Orthopaedic Surgery, Inselspital Berne, University of Berne, Switzerland.
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23
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Joly L, Thauvin-Robinet C, Huet F, Pinoit JM, Contrain A, Cassini C, Coron F, Gautier E, Bonin B, Gargiulo M, Heron D, Dürr A, Faivre L. [Genetic testing in asymptomatic minors: a survey among French geneticists]. Arch Pediatr 2010; 17:1000-7. [PMID: 20452194 DOI: 10.1016/j.arcped.2010.03.016] [Citation(s) in RCA: 4] [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] [Received: 03/25/2009] [Revised: 12/23/2009] [Accepted: 03/26/2010] [Indexed: 01/17/2023]
Abstract
Since their introduction, genetic tests have been carefully considered, with special attention to the release of information about the test and test results, the confidentiality of genetic information, the request and its motivation, and the psychological impact of the test. Careful consideration is needed when family members at risk are asymptomatic children or adolescents. Cautious reflection is warranted on whether and under which conditions genetic testing should be performed. Here, we report on the results of a survey conducted in France among 50 geneticists questioned on their opinions and practices concerning presymptomatic testing in three groups of diseases: those for which a medical benefit exists during childhood (e.g., retinoblastoma), diseases with onset during childhood for which there are no immediate medical consequences (e.g., type II/III spinal muscular atrophy), and those with onset during adulthood for which there is no medical benefit during childhood (e.g., Huntington disease). Guidelines are proposed: presymptomatic testing should not be performed in a minor without individual and direct information, all requests for presymptomatic genetic testing concerning a disease with onset in adulthood should be postponed, and all presymptomatic test requests for a minor should be addressed to a multidisciplinary team.
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Affiliation(s)
- L Joly
- Centre de génétique et centre de référence maladies rares anomalies du développement et syndromes malformatifs, hôpital d'Enfants, CHU de Dijon, 10 boulevard Maréchal-de-Lattre-de-Tassigny, Dijon cedex, France
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George J, Wilkins S, Critch N, Gunawan L, Cortes M, Liu X, Laughton K, Nurjono M, Volitakis I, Huggins P, Parsons J, McNaughton M, Adlard P, Masters C, Cappai R, Barnham K, Gautier E, Bush A, Cherny R, Finkelstein D. P1.050 Novel neuroprotective agents for the treatment of Parkinson's disease. Parkinsonism Relat Disord 2009. [DOI: 10.1016/s1353-8020(09)70172-5] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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25
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Delacrétaz J, Grigoriu D, de Crousaz H, Tapernoux B, Nicod PA, Gautier E. Candidose nodulaire de la region inguino-génitale et des fesses (granuloma glutaeale infantum). Dermatology 2009. [DOI: 10.1159/000252111] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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Saal S, Faivre L, Aral B, Gigot N, Toutain A, Van Maldergem L, Destree A, Maystadt I, Cosyns JP, Jouk PS, Loeys B, Chauveau D, Bieth E, Layet V, Mathieu M, Lespinasse J, Teebi A, Franco B, Gautier E, Binquet C, Masurel-Paulet A, Mousson C, Gouyon JB, Huet F, Thauvin-Robinet C. Renal insufficiency, a frequent complication with age in oral-facial-digital syndrome type I. Clin Genet 2009; 77:258-65. [PMID: 19817772 DOI: 10.1111/j.1399-0004.2009.01290.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [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
The oral-facial-digital syndrome type I (OFD I) is characterized by multiple congenital malformations of the face, oral cavity and digits. A polycystic kidney disease (PKD) is found in about one-third of patients but long-term outcome and complications are not well described in the international literature. Renal findings have been retrospectively collected in a cohort of 34 females all carrying a pathogenic mutation in the OFD1 gene with ages ranging from 1 to 65 years. Twelve patients presented with PKD - 11/16 (69%) if only adults were considered -with a median age at diagnosis of 29 years [IQR (interquartile range) = (23.5-38)]. Among them, 10 also presented with renal impairment and 6 were grafted (median age = 38 years [IQR = (25-48)]. One grafted patient under immunosuppressive treatment died from a tumor originated from a native kidney. The probability to develop renal failure was estimated to be more than 50% after the age of 36 years. Besides, neither genotype-phenotype correlation nor clinical predictive association with renal failure could be evidenced. These data reveal an unsuspected high incidence rate of the renal impairment outcome in OFD I syndrome. A systematic ultrasound (US) and renal function follow-up is therefore highly recommended for all OFD I patients.
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Affiliation(s)
- S Saal
- Centre de Génétique, Hôpital d'Enfants, CHU Dijon, France
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Abstract
SummaryTo study the interaction between Tc and subsurface bacteria, we conducted batch experiments with soil and groundwater or sterilized deionized water. The system water/soil was amended with lactate and phosphate for bacterial growth. Nitrate and sulfate were added to stimulate the growth of indigenous denitrifying and sulfate-reducing bacteria. During denitrification Tc-concentration did not change with time. In the presence of sulfate-reducing bacteria, Tc-concentrations decreased in reacted waters which could be attributed to Tc(VII) reduction and precipitation of TcO2and/or TcS2. Coprecipitation with newly formed iron sulfide is expected to contribute to Tc removal. Additional experiments with U and Tc showed that these elements were simultaneously reduced by sulfate-reducing bacteria. This work shows that 1) subsurface mixed cultures of denitrifying bacteria do not remove Tc from solution, this is different from uranium and 2) sulfate-reducing bacteria reduce and remove Tc from aqueous solutions and thus in situ bioremediation of subsurface waters and soils may be possible with such ubiquitous bacteria.
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Abstract
The Medoff sliding plate was designed to treat unstable intertrochanteric and subtrochanteric fractures. This plate has a dual sliding capability along both the femoral shaft and neck in order to improve bone coaptation, interfragment compression and hence load-sharing between bone and implant in hip fractures. In a retrospective study of 63 patients (mean age 82 (51-98) years) with intertrochanteric (n 44) and high subtrochanteric fractures (n 19), we assessed the results with the Medoff sliding plate. All patients, except 1 lost to follow-up, were examined clinically and radiographically. 14 patients died within 1 year, and in the other, the mean follow-up was 15 (6-30) months. 1 technical failure occurred, leading to a single reoperation. The low technical failure rate suggests that the Medoff sliding plate with combined compression modus is suitable for treating intertrochanteric and high subtrochanteric fractures.
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Affiliation(s)
- S W Wachtl
- Department of Orthopaedic Surgery, H pital Cantonal, Fribourg, Switzerland.
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Thauvin-Robinet C, Munck A, Huet F, Genin E, Bellis G, Gautier E, Audrezet MP, Ferec C, Lalau G, Georges MD, Claustres M, Bienvenu T, Gerard B, Boisseau P, Cabet-Bey F, Feldmann D, Clavel C, Bieth E, Iron A, Simon-Bouy B, Costa C, Medina R, Leclerc J, Hubert D, Nove-Josserand R, Sermet-Gaudelus I, Rault G, Flori J, Leroy S, Wizla N, Bellon G, Haloun A, Perez-Martin S, d'Acremont G, Corvol H, Clement A, Houssin E, Binquet C, Bonithon-Kopp C, Alberti-Boulme C, Morris MA, Faivre L, Goossens M, Roussey M. The very low penetrance of cystic fibrosis for the R117H mutation: a reappraisal for genetic counselling and newborn screening. J Med Genet 2009; 46:752-8. [DOI: 10.1136/jmg.2009.067215] [Citation(s) in RCA: 87] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Faivre L, Collod-Beroud G, Callewaert B, Child A, Loeys B, Binquet C, Gautier E, Arbustini E, Mayer K, Arslan-Kirchner M, Kiotsekoglou A, Comeglio P, Grasso M, Beroud C, Bonithon-Kopp C, Claustres M, Stheneur C, Bouchot O, Wolf J, Robinson P, Adès L, De Backer J, Coucke P, Francke U, De Paepe A, Boileau C, Jondeau G. Pathogenic FBN1 mutations in 146 adults not meeting clinical diagnostic criteria for Marfan syndrome: Further delineation of type 1 fibrillinopathies and focus on patients with an isolated major criterion. Am J Med Genet A 2009; 149A:854-60. [DOI: 10.1002/ajmg.a.32809] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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31
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Gauvin R, Arbaoui A, Gautier E, Mortreux A, Berrier E, Nowogrocki G. Efficient synthesis and structural characterization of a post-metallocene α-olefin polymerization catalyst. Inorganica Chim Acta 2009. [DOI: 10.1016/j.ica.2008.02.034] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [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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32
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Faivre L, Collod-Beroud G, Callewaert B, Child A, Binquet C, Gautier E, Loeys BL, Arbustini E, Mayer K, Arslan-Kirchner M, Stheneur C, Kiotsekoglou A, Comeglio P, Marziliano N, Wolf JE, Bouchot O, Khau-Van-Kien P, Beroud C, Claustres M, Bonithon-Kopp C, Robinson PN, Adès L, De Backer J, Coucke P, Francke U, De Paepe A, Jondeau G, Boileau C. Clinical and mutation-type analysis from an international series of 198 probands with a pathogenic FBN1 exons 24-32 mutation. Eur J Hum Genet 2008; 17:491-501. [PMID: 19002209 DOI: 10.1038/ejhg.2008.207] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Mutations in the FBN1 gene cause Marfan syndrome (MFS) and a wide range of overlapping phenotypes. The severe end of the spectrum is represented by neonatal MFS, the vast majority of probands carrying a mutation within exons 24-32. We previously showed that a mutation in exons 24-32 is predictive of a severe cardiovascular phenotype even in non-neonatal cases, and that mutations leading to premature truncation codons are under-represented in this region. To describe patients carrying a mutation in this so-called 'neonatal' region, we studied the clinical and molecular characteristics of 198 probands with a mutation in exons 24-32 from a series of 1013 probands with a FBN1 mutation (20%). When comparing patients with mutations leading to a premature termination codon (PTC) within exons 24-32 to patients with an in-frame mutation within the same region, a significantly higher probability of developing ectopia lentis and mitral insufficiency were found in the second group. Patients with a PTC within exons 24-32 rarely displayed a neonatal or severe MFS presentation. We also found a higher probability of neonatal presentations associated with exon 25 mutations, as well as a higher probability of cardiovascular manifestations. A high phenotypic heterogeneity could be described for recurrent mutations, ranging from neonatal to classical MFS phenotype. In conclusion, even if the exons 24-32 location appears as a major cause of the severity of the phenotype in patients with a mutation in this region, other factors such as the type of mutation or modifier genes might also be relevant.
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Affiliation(s)
- L Faivre
- Centre de Génétique, CHU, Dijon, France.
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Thauvin-Robinet C, Munck A, Huet F, Bellis G, Gautier E, Férec C, Audrézet M, Claustres M, DesGeorges M, Lalau G, Bienvenu T, Bieth E, Gerard B, Sermet I, Rault G, Flori J, Lafitte J, Bellon G, Hubert D, Binquet C, Faivre L, Goossens M, Roussey M, Girodon E. A French collaborative study indicative of a very low classical-CF penetrance of R117H; implications for genetic counselling. J Cyst Fibros 2008. [DOI: 10.1016/s1569-1993(08)60045-4] [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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Faivre L, Collod-Beroud G, Child A, Callewaert B, Loeys BL, Binquet C, Gautier E, Arbustini E, Mayer K, Arslan-Kirchner M, Stheneur C, Kiotsekoglou A, Comeglio P, Marziliano N, Halliday D, Beroud C, Bonithon-Kopp C, Claustres M, Plauchu H, Robinson PN, Adès L, De Backer J, Coucke P, Francke U, De Paepe A, Boileau C, Jondeau G. Contribution of molecular analyses in diagnosing Marfan syndrome and type I fibrillinopathies: an international study of 1009 probands. J Med Genet 2008; 45:384-90. [PMID: 18310266 DOI: 10.1136/jmg.2007.056382] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BACKGROUND The diagnosis of Marfan syndrome (MFS) is usually initially based on clinical criteria according to the number of major and minor systems affected following international nosology. The number of FBN1 mutation carriers, at risk of aortic complications who would not be properly diagnosed based only on clinical grounds, is of growing importance owing to the increased availability of molecular screening. The aim of the study was to identify patients who should be considered for FBN1 mutation screening. METHODS Our international series included 1009 probands with a known FBN1 mutation. Patients were classified as either fulfilling or not fulfilling "clinical" criteria. In patients with unfulfilled "clinical" criteria, we evaluated the percentage of additional patients who became positive for international criteria when the FBN1 mutation was considered. The aortic risk was evaluated and compared in patients fulfilling or not fulfilling the "clinical" international criteria. RESULTS Diagnosis of MFS was possible on clinical grounds in 79% of the adults, whereas 90% fulfilled the international criteria when including the FBN1 mutation. Corresponding figures for children were 56% and 85%, respectively. Aortic dilatation occurred later in adults with unfulfilled "clinical criteria" when compared to the Marfan syndrome group (44% vs 73% at 40 years, p<0.001), but the lifelong risk for ascending aortic dissection or surgery was not significantly different in both groups. CONCLUSIONS Because of its implications for aortic follow-up, FBN1 molecular analysis is recommended in newly suspected MFS when two systems are involved with at least one major system affected. This is of utmost importance in patients without aortic dilatation and in children.
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Faivre L, Collod-Beroud G, Loeys BL, Child A, Binquet C, Gautier E, Callewaert B, Arbustini E, Mayer K, Arslan-Kirchner M, Kiotsekoglou A, Comeglio P, Marziliano N, Dietz HC, Halliday D, Beroud C, Bonithon-Kopp C, Claustres M, Muti C, Plauchu H, Robinson PN, Adès LC, Biggin A, Benetts B, Brett M, Holman KJ, De Backer J, Coucke P, Francke U, De Paepe A, Jondeau G, Boileau C. Effect of mutation type and location on clinical outcome in 1,013 probands with Marfan syndrome or related phenotypes and FBN1 mutations: an international study. Am J Hum Genet 2007; 81:454-66. [PMID: 17701892 PMCID: PMC1950837 DOI: 10.1086/520125] [Citation(s) in RCA: 371] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2007] [Accepted: 05/16/2007] [Indexed: 11/04/2022] Open
Abstract
Mutations in the fibrillin-1 (FBN1) gene cause Marfan syndrome (MFS) and have been associated with a wide range of overlapping phenotypes. Clinical care is complicated by variable age at onset and the wide range of severity of aortic features. The factors that modulate phenotypical severity, both among and within families, remain to be determined. The availability of international FBN1 mutation Universal Mutation Database (UMD-FBN1) has allowed us to perform the largest collaborative study ever reported, to investigate the correlation between the FBN1 genotype and the nature and severity of the clinical phenotype. A range of qualitative and quantitative clinical parameters (skeletal, cardiovascular, ophthalmologic, skin, pulmonary, and dural) was compared for different classes of mutation (types and locations) in 1,013 probands with a pathogenic FBN1 mutation. A higher probability of ectopia lentis was found for patients with a missense mutation substituting or producing a cysteine, when compared with other missense mutations. Patients with an FBN1 premature termination codon had a more severe skeletal and skin phenotype than did patients with an inframe mutation. Mutations in exons 24-32 were associated with a more severe and complete phenotype, including younger age at diagnosis of type I fibrillinopathy and higher probability of developing ectopia lentis, ascending aortic dilatation, aortic surgery, mitral valve abnormalities, scoliosis, and shorter survival; the majority of these results were replicated even when cases of neonatal MFS were excluded. These correlations, found between different mutation types and clinical manifestations, might be explained by different underlying genetic mechanisms (dominant negative versus haploinsufficiency) and by consideration of the two main physiological functions of fibrillin-1 (structural versus mediator of TGF beta signalling). Exon 24-32 mutations define a high-risk group for cardiac manifestations associated with severe prognosis at all ages.
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Affiliation(s)
- L Faivre
- Centre de Génétique, Centre Hospitalier Universitaire, Dijon, France.
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Gautier E, Huby T, Ouzilleau B, Chapman M, Lesnik P. WO14-OR-5 INDUCTION OF APOPTOSIS IN ESTABLISHED ATHEROSCLEROTIC LESIONS PROMOTES INFLAMMATION AND MONOCYTE RECRUITMENT IN APOE−/− MICE. ATHEROSCLEROSIS SUPP 2007. [DOI: 10.1016/s1567-5688(07)71001-2] [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: 10/23/2022]
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Gautier E, Huby T, Ouzilleau B, Chapman M, Lesnik P. PO9-224 AUTOIMMUNE-MEDIATED ARTERIAL INFLAMMATION ACCELERATES ATHEROSCLEROSIS IN LUPUS-PRONE MICE DESPITE AN ANTI-ATHEROGENIC CYTOKINE PROFILE. ATHEROSCLEROSIS SUPP 2007. [DOI: 10.1016/s1567-5688(07)71234-5] [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: 10/23/2022]
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Leinekugel-le-Cocq-Errien A, Deniard P, Jobic S, Gautier E, Evain M, Aubin V, Bart F. Structural characterization of the hollandite host lattice for the confinement of radioactive cesium: Quantification of the amorphous phase taking into account the incommensurate modulated character of the crystallized part. J SOLID STATE CHEM 2007. [DOI: 10.1016/j.jssc.2006.10.013] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Siebenrock KA, Gautier E, Ziran BH, Ganz R. Trochanteric flip osteotomy for cranial extension and muscle protection in acetabular fracture fixation using a Kocher-Langenbeck approach. J Orthop Trauma 2006; 20:S52-6. [PMID: 16385208 DOI: 10.1097/01.bot.0000202393.63117.20] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To describe the advantages and surgical technique of a trochanteric flip osteotomy in combination with a Kocher-Langenbeck approach for the treatment of selected acetabular fractures. DESIGN Consecutive series, teaching hospital. METHODS Through mobilization of the vastus lateralis muscle, a slice of the greater trochanter with the attached gluteus medius muscle can be flipped anteriorly. The gluteus minimus muscle can then be easily mobilized, giving free access to the posterosuperior and superior acetabular wall area. Damage to the abductor muscles by vigorous retraction can be avoided, potentially resulting in less ectopic ossification. Ten consecutive cases of acetabular fractures treated with this approach are reported. In eight cases, an anatomic reduction was achieved; in the remaining two cases with severe comminution, the reduction was within one to three millimeters. The trochanteric fragment was fixed with two 3.5-millimeter cortical screws. RESULTS All osteotomies healed in anatomic position within six to eight weeks postoperatively. Abductor strength was symmetric in eight patients and mildly reduced in two patients. Heterotopic ossification was limited to Brooker classes 1 and 2 without functional impairment at an average follow-up of twenty months. No femoral head necrosis was observed. CONCLUSION This technique allows better visualization, more accurate reduction, and easier fixation of cranial acetabular fragments. Cranial migration of the greater trochanter after fixation with two screws is unlikely to occur because of the distal pull of the vastus lateralis muscle, balancing the cranial pull of the gluteus medius muscle.
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Affiliation(s)
- K A Siebenrock
- Department of Orthopaedic Surgery, University of Berne, Berne, Switzerland
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Gautier E, Huby T, Ouzilleau B, Gremy G, Chapman J, Lesnik P. Tu-P7:24 Impact of autoimmunity on atherosclerosis progression: Autoimmune-specific mechanisms override oxidative and inflammatory processes. ATHEROSCLEROSIS SUPP 2006. [DOI: 10.1016/s1567-5688(06)80733-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Gautier E, Huby T, Ouzilleau B, Chapman J, Lesnik P. We-W41:6 Impact of dendritic cell lifespan and immunogenicity on atherosclerosis progression. ATHEROSCLEROSIS SUPP 2006. [DOI: 10.1016/s1567-5688(06)81307-3] [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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Perrelet A, Zellweger JP, Talla I, Ndiaye Y, Gautier E, Gehri M. The oxygen concentrator: an appropriate technology for treating hypoxaemic children in developing countries. Int J Tuberc Lung Dis 2004; 8:1138-41. [PMID: 15455602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/30/2023] Open
Abstract
The World Health Organization (WHO) recommends supplying oxygen in developing countries by concentrators because cylinders pose considerable logistic and financial problems. This technology was employed to treat children in a hospital in Ndioum, Senegal, who met the WHO oxygenation criteria. There were clear clinical and financial benefits, but neither the nurses' knowledge of the various techniques of oxygen supply nor the maintenance service were satisfactory. The use of concentrators should be encouraged in developing countries. A strategy including technical training, maintenance and monitoring should be adopted. Corrective actions were undertaken in Ndioum, and several concentrators are now being used on a regular basis.
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Affiliation(s)
- A Perrelet
- Department of Paediatrics, Hôpital de l'Enfance, Lausanne, Switzerland
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Abstract
Circulating fetal DNA in maternal plasma and serum was first demonstrated by Lo et al. in 1997 and has become a useful tool for prenatal diagnosis less than five years later. There is more and more evidence that the trophoblastic cells act as the major source of this circulating fetal DNA. Contrary to fetal cells analysis in maternal blood which requires isolation and enrichment procedures, fetal DNA analysis is relatively easy to perform with the use of real-time PCR. Non-invasive fetal sex and fetal RHD genotype determination are, to date, the two main clinical indications. Those newly offered possibilities have changed the management of pregnant women who are carriers for X-linked genetic disorders; prenatal diagnosis by choriovillous sampling could only be performed for male fetuses avoiding an unnecessary risk of fetal loss for female fetuses. Moreover, fetal RHD genotyping by maternal blood analysis could be useful in RhD-negative women at risk of immunization in order to adapt prophylactic anti-D injection.
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Affiliation(s)
- J-M Costa
- Centre de diagnostic prénatal, hôpital américain de Paris, Neuilly-sur-Seine.
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Flori E, Doray B, Gautier E, Kohler M, Ernault P, Flori J, Costa JM. Circulating cell-free fetal DNA in maternal serum appears to originate from cyto- and syncytio-trophoblastic cells. Case report. Hum Reprod 2004; 19:723-4. [PMID: 14998976 DOI: 10.1093/humrep/deh117] [Citation(s) in RCA: 126] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Circulating cell-free fetal DNA in maternal serum offers an early and non-invasive method for prenatal diagnosis, but the origin of this DNA is still unknown. We report the absence of the SRY gene in maternal serum of a pregnant woman despite male genitalia at ultrasound. The karyotype was 45,X after direct trophoblast analysis and 45,X/46,Xidic(Yp) after culture and in all fetal tissues studied. Due to the absence of the SRY sequence in maternal blood and in the cytotrophoblast, we presume that free fetal DNA in this case originates from trophoblastic cells. As the case presented here is exceptional, it only has a minor impact on the accuracy of fetal sex determination by maternal serum analysis, but highlights the importance of and the necessity for the complementary ultrasonographic control.
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Affiliation(s)
- E Flori
- Laboratoire de Cytogénétique, Hôpital de Hautepierre, Strasbourg, France
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Abstract
Der goldene Standard zur Behandlung von Schaftfrakturen langer Röhrenknochen des Erwachsenen bleibt nach wie vor die Marknagelosteosynthese. Das operative Verfahren ist standardisiert und meist minimal-invasiv, die primäre Heilungsrate ist hoch, und Komplikationen treten selten auf. Für Problemzonen (metadiaphysärer Übergang), bei schlechter Knochenqualität und bei anderen relativen Kontraindikationen für den Marknagel (enger Markkanal, Frakturen beim Adoleszenten und beim Polytrauma) bieten die neuen winkelstabilen Schrauben-Platten-Systeme (LISS, LCP) eine ausgezeichnete Alternative für die operative Stabilisierung. Die damit erreichte sehr hohe Primärstabilität in Kombination mit neu entwickelten, weichteilschonenden Operationstechniken (MIPO = Minimalinvasive Plattenosteosynthese) bieten die Grundlagen für eine funktionelle Nachbehandlung und eine möglichst rasche und komplikationsarme Knochenheilung.
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Affiliation(s)
- Ch Sommer
- Department Chirurgie, Rätisches Kantons- und Regionalspital, Chur.
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Abstract
Die biologische Osteosynthese ist durch mehrere Faktoren gekennzeichnet: schonungsvolle Operationstechnik, Reduktion des Repositionszieles auf das funktionell Notwendige und Verwendung neuer Verankerungsprinzipien und Implantatdesigns, welche die Vitalität des Knochens wenig beeinflussen. Die Reposition einer Fraktur im Schaftbereich erfolgt meist indirekt, die Exposition der Frakturzone wird vermieden, und die Fragmente bleiben in ihrem Weichteilverbund integriert, so dass der natürliche Knochenheilungsprozess so wenig wie möglich gestört wird. In diesem Zusammenhang hat sich insbesondere die Technik der Plattenosteosynthese gewandelt. In Analogie zu einer Marknagel-Osteosynthese wird die Fraktur mit der Platte langstreckig überbrückt unter korrekter Einstellung von Länge, Achsen und Torsion des Knochens. Der chirurgische Zugang ist oft minimal und dient lediglich noch dem Einschieben des Implantates, die Inzisionslänge entspricht dabei eher dem Plattenquerschnitt als der Plattenlänge. Die mechanische Leistungsfähigkeit der Platte wird durch den Gebrauch langer Implantate und die Möglichkeit, neben Standardschrauben auch winkelstabile Schrauben einzusetzen, optimiert. Durch die Vergrößerung des mechanisch wirksamen Hebelarms der Platte nimmt die Belastung der Schrauben ab, was die Gefahr des Ausreissens von Schrauben oder eines Schraubenbruchs vermindert. Die Platte selbst erfährt bei gegebener Belastung eine geringere elastische Deformation und damit eine bessere Resistenz gegen einen Ermüdungsbruch. Die vorsichtige funktionelle Nachbehandlung bis zur radiologisch gesicherten Konsolidation des Knochens bleibt wichtiges Element des Behandlungserfolgs.
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Affiliation(s)
- E Gautier
- Clinique de chirurgie orthopédique, Hôpital cantonal, Fribourg.
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Abstract
We found that 162 unipolar hemiarthroplastics of the hip were performed between 1989 and 1995 on women over 70 years of age in our institution. The mean age was 84 years (70 to 99). Cumulative survival of the prostheses was 98% at 1 year and 94% after 5 and 10 years. Of the original patients, 137 have died. Survival rate for patients was 73% at 1 year, 23% at 5 years, and 6% at 10 years. Eighteen patients could be accounted for, with a mean follow-up time of 7.7 years (5.5-11.3 years). The mean Harris hip score was 80 points (55-100). Protrusion was observed in 3 patients. The treatment of cervical neck fracture with unipolar hip prostheses is a valuable method, with a low complication rate, particularly in women over 70 years for whom life expectancy may be short.
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Affiliation(s)
- S W Wachtl
- Department of Orthopaedic Surgery, Hôpital Cantonal, Firbourg, Switzerland
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Chu MW, Caldes M, Piffard Y, Marie AM, Gautier E, Joubert O, Ganne M, Brohan L. Evidence for a monoclinic distortion in the ferroelectric Aurivillius phase Bi3LaTi3O12. J SOLID STATE CHEM 2003. [DOI: 10.1016/s0022-4596(03)00015-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [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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Griscelli F, Opolon P, Saulnier P, Mami-Chouaib F, Gautier E, Echchakir H, Angevin E, Le Chevalier T, Bataille V, Squiban P, Tursz T, Escudier B. Recombinant adenovirus shedding after intratumoral gene transfer in lung cancer patients. Gene Ther 2003; 10:386-95. [PMID: 12601393 DOI: 10.1038/sj.gt.3301928] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
We conducted two phase 1 trials of direct intratumoral injection of a recombinant E1E3-deleted adenovirus (AdR) encoding either the bacterial enzyme beta-galactosidase (Ad.RSVbetagal) or interleukin 2 (IL2, AdTG5327) into primary nonsmall-cell lung cancers of 21 patients. We report here virus shedding and the duration of virus expression in the tumor after intrabronchial injection of 10(7), 10(8) or 10(9) PFU of adenovirus. The infectious AdR and the viral DNA were detected in PBL, plasma, stool and aerodigestive samples in a dose-dependent manner, since cell cultures and PCRs were found to be positive mainly for samples from patients who received the highest AdR dose (10(9) PFU). We detected beta-galactosidase activity in the tumor biopsy samples of 66% of the patients, seemingly dose related, and only low levels of IL2 mRNA could be detected in tumor biopsy samples. E1 sequences were not detected by PCR in any of the PBL and bronchial samples collected after virus delivery, except in one patient. In this patient, E1 sequences were detected in PBL as well as in tumor biopsy samples collected at days 8, 30 and 60 and were correlated with longer beta-galactosidase expression in tumor samples. PBL tested before and after virus delivery contained both E1 sequences indicating that they did not result from replication-competent adenovirus (RCA) E1 sequences present in the inoculum. In addition, only on the day of the injection was Ad.RSVbetagal also detected in E1-positive PBL, indicating that virus replication in blood was very unlikely.
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Affiliation(s)
- F Griscelli
- Department of Biology, Institut Gustave Roussy, Villejuif, France
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Müller U, Gautier E, Roeder C, Busato A. The relationship between cup design and the radiological signs of aseptic loosening in total hip arthroplasty. J Bone Joint Surg Br 2003; 85:31-6. [PMID: 12585574 DOI: 10.1302/0301-620x.85b1.12925] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
We assessed differences in the incidence and appearance of the radiological signs of loosening of the cup for various types of design. This was an observational study based on hip registry data of 15,340 patients with 17,951 total hip arthroplasties collected over a period of 33 years in 49 hospitals in Central Europe. The threaded and the press-fit titanium cups showed significantly less aseptic loosening than the other systems. The direction of migration and the frequency of the radiological signs of loosening differed between the cup systems and were time-dependent. Our findings indicate the superiority of uncemented threaded cups and press-fit titanium cups over other designs of cup.
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Affiliation(s)
- U Müller
- Maurice E. Miller Foundation, Bern, Switzerland
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