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Neveu S. [Olfactory workshops to renew the links between scents and memory]. Rev Infirm 2021; 70:26-27. [PMID: 34893171 DOI: 10.1016/j.revinf.2021.10.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Smells and memories are closely linked with a particular emotional status. Most smells are imprinted in our memory from childhood. Based on this observation, a professional from the perfume industry has created olfactory workshops for residents of retirement homes. The workshops focus on well-being and the cognitive perception of odours. Testimonial.
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Affiliation(s)
- Soraya Neveu
- c/o La revue de l'infirmière, 65 rue Camille-Desmoulins, 92442 Issy-les-Moulineaux cedex, France.
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Bidaud C, Berling D, Jamon D, Gamet E, Neveu S, Royer F, Soppera O. Photocrosslinking and photopatterning of magneto-optical nanocomposite sol-gel thin film under deep-UV irradiation. Sci Rep 2021; 11:5075. [PMID: 33658579 PMCID: PMC7930195 DOI: 10.1038/s41598-021-84376-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Accepted: 01/12/2021] [Indexed: 11/09/2022] Open
Abstract
This paper is aimed at investigating the process of photocrosslinking under Deep-UV irradiation of nanocomposite thin films doped with cobalt ferrite magnetic nanoparticles (MNPs). This material is composed of a hybrid sol-gel matrix in which MNP can be introduced with high concentrations up to 20 vol%. Deep-UV (193 nm) is not only interesting for high-resolution patterning but we also show an efficient photopolymerization pathway even in the presence of high concentration of MNPs. In this study, we demonstrate that the photocrosslinking is based on the free radical polymerization of the methacrylate functions of the hybrid precursor. This process is initiated by Titanium-oxo clusters. The impact of the nanoparticles on the photopolymerization kinetic and photopatterning is investigated. We finally show that the photosensitive nanocomposite is suitable to obtain micropatterns with sub-micron resolution, with a simple and versatile process, which opens many opportunities for fabrication of miniaturized magneto-optical devices for photonic applications.
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Affiliation(s)
- C Bidaud
- CNRS, IS2M UMR 7361, Université de Haute-Alsace, 68100, Mulhouse, France.,Université de Strasbourg, Strasbourg, France
| | - D Berling
- CNRS, IS2M UMR 7361, Université de Haute-Alsace, 68100, Mulhouse, France. .,Université de Strasbourg, Strasbourg, France.
| | - D Jamon
- Université de Lyon, CNRS, UMR 5516, Institut d'Optique Graduate School, Laboratoire Hubert Curien, Université Jean Monnet, 42023, Saint-Etienne, France
| | - E Gamet
- Université de Lyon, CNRS, UMR 5516, Institut d'Optique Graduate School, Laboratoire Hubert Curien, Université Jean Monnet, 42023, Saint-Etienne, France
| | - S Neveu
- CNRS, Laboratoire de Physicochimie des Electrolytes et Nanosystèmes Interfaciaux, PHENIX, Sorbonne Université, 75005, Paris, France
| | - F Royer
- Université de Lyon, CNRS, UMR 5516, Institut d'Optique Graduate School, Laboratoire Hubert Curien, Université Jean Monnet, 42023, Saint-Etienne, France
| | - O Soppera
- CNRS, IS2M UMR 7361, Université de Haute-Alsace, 68100, Mulhouse, France. .,Université de Strasbourg, Strasbourg, France.
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Neveu S, Saab I, Dangeard S, Bennani S, Tordjman M, Chassagnon G, Revel MP. Incidental diagnosis of Covid-19 pneumonia on chest computed tomography. Diagn Interv Imaging 2020; 101:457-461. [PMID: 32571747 PMCID: PMC7284233 DOI: 10.1016/j.diii.2020.05.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Accepted: 05/29/2020] [Indexed: 01/18/2023]
Abstract
PURPOSE The purpose of this study was to determine the prevalence and imaging characteristics of incidentally diagnosed COVID-19 pneumonia on computed tomography (CT). MATERIALS AND METHODS This retrospective study was conducted between March 20th and March 31st, 2020 at Cochin hospital, Paris France. Thoracic CT examinations of all patients referred for another reason than a suspicion of SARS-CoV-2 infection were reviewed. CT images were analyzed by a chest radiologist to confirm the presence of findings consistent with COVID-19 pneumonia and quantify disease extent. Clinical and biological data (C-reactive protein serum level [CRP] and white blood cell count) of patients with CT findings suggestive for COVID-19 pneumonia were retrieved from the electronic medical chart. RESULTS During the study period, among 205 diagnostic CT examinations, six examinations (6/205, 3%) in 6 different patients (4 men, 2 women; median age, 57 years) revealed images highly suggestive of COVID-19 pneumonia. The final diagnosis was confirmed by RT-PCR. Three inpatients were suspected of extra thoracic infection whereas three outpatients were either fully asymptomatic or presented with fatigue only. All had increased CRP serum level and lymphopenia. Disease extent on CT was mild to moderate in 5/6 patients (83%) and severe in 1/6 patient (17%). CONCLUSION Cumulative incidence of fortuitous diagnosis if COVID-19 pneumonia did not exceed 3% during the highest pandemic phase and was predominantly associated with limited lung involvement.
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Affiliation(s)
- S Neveu
- Department of Radiology, Hopital Cochin, AP-HP centre, 75014 Paris, France
| | - I Saab
- Department of Radiology, Hopital Cochin, AP-HP centre, 75014 Paris, France; Université de Paris, Descartes-Paris 5, 75006 Paris, France
| | - S Dangeard
- Department of Radiology, Hopital Cochin, AP-HP centre, 75014 Paris, France
| | - S Bennani
- Department of Radiology, Hopital Cochin, AP-HP centre, 75014 Paris, France
| | - M Tordjman
- Department of Radiology, Hopital Cochin, AP-HP centre, 75014 Paris, France
| | - G Chassagnon
- Department of Radiology, Hopital Cochin, AP-HP centre, 75014 Paris, France; Université de Paris, Descartes-Paris 5, 75006 Paris, France
| | - M-P Revel
- Department of Radiology, Hopital Cochin, AP-HP centre, 75014 Paris, France; Université de Paris, Descartes-Paris 5, 75006 Paris, France.
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Schved JF, Gris JC, Neveu S, Mares P, Sarlat C. Variations of Factor XII Level During Pregnancy in a Woman with Hageman Factor Deficiency. Thromb Haemost 2018. [DOI: 10.1055/s-0038-1647006] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- J F Schved
- Laboratoire d’Hématologie et Immunologiel, C. H. R. U. de Nîmes, 5, rue Hoche, B.P. 26,30006 Nimes Cedex, France
| | - J C Gris
- Laboratoire d’Hématologie et Immunologiel, C. H. R. U. de Nîmes, 5, rue Hoche, B.P. 26,30006 Nimes Cedex, France
| | - S Neveu
- Service de Gynécologie et Obstétrique, Hopital Carremeau, 30000 Nîmes, France
| | - P Mares
- Service de Gynécologie et Obstétrique, Hopital Carremeau, 30000 Nîmes, France
| | - C Sarlat
- Laboratoire d’Hématologie et Immunologiel, C. H. R. U. de Nîmes, 5, rue Hoche, B.P. 26,30006 Nimes Cedex, France
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Groult H, Neveu S, Leclerc S, Porras-Gutierrez AG, Julien C, Tressaud A, Durand E, Penin N, Labrugere C. Nano-CoF 3 prepared by direct fluorination with F 2 gas: Application as electrode material in Li-ion battery. J Fluor Chem 2017. [DOI: 10.1016/j.jfluchem.2016.10.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [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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Che H, Etcheto A, Dernis E, Nataf H, Boumier P, Breuillard P, Durandin-Truffinet M, Fechtenbaum J, Gaud-Listrat V, Giraud B, Hudry C, Labatide-Alanore S, Le Devic P, Le Goux P, Lebrun A, Maheu E, Moura B, Nguyen M, Sacchi A, Ayral X, Blanchais A, Neveu S, Dougados M, Moltó A. Evaluation of collected outcome measures in axial spondyloarthritis in daily-care rheumatology settings: the experience of the RHEVER network. Clin Exp Rheumatol 2015; 33:851-857. [PMID: 26411931] [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] [Received: 02/15/2015] [Accepted: 05/28/2015] [Indexed: 06/05/2023]
Abstract
OBJECTIVES Nowadays, the recommended measures for optimal monitoring of axial Spondyloarthritis (ax-SpA) disease activity are either BASDAI and CRP, or ASDAS-CRP. However, there could be a gap between recommendations and daily practice. We aimed to determine the measures collected by rheumatologists in an ax-SpA follow-up visit, and to determine the impact of a meeting (where rheumatologists reached a consensus on the measures to be collected) on the collection of such measures. METHODS A consensual meeting of a local network of 32 rheumatologists proposed, four months later, to report at least the BASDAI score in the medical file of every ax-SpA patient at every follow-up visit. An independent investigator reviewed the medical files of 10 consecutive patients per rheumatologist, seen twice during the year (e.g. before and after the meeting). The most frequently collected measures were assessed, and then, the frequency of collection before and after the meeting was compared. RESULTS A total of 456 medical files from 228 patients were reviewed. Treatment (>60%), CRP (51.3%) and total BASDAI (28.5%) were the most reported measures in medical files. Before/After the meeting, the frequencies of collected measures in medical files were 28.5%/51.7%, 51.3%/52.2%, 16.7%/31.6% and 0.9%/6.1% for BASDAI, CRP, BASDAI + CRP and ASDAS, respectively reaching a statistically significance for BASDAI, ASDAS and BASDAI+CRP (p<0.05). CONCLUSIONS This study revealed a low rate of systematic report of the recommended outcome measures in ax-SpA. However, it suggests that a consensual meeting involving practicing rheumatologists might be relevant to improve the implementation of such recommendations.
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Affiliation(s)
- H Che
- Hôpital Cochin, Assistance Publique, Hôpitaux de Paris, Département de Rhumatologie, Paris, and Hôpital Lapeyronie, Département de Rhumatologie, Montpellier, France.
| | - A Etcheto
- Hôpital Cochin, Assistance Publique, Hôpitaux de Paris, Département de Rhumatologie, Paris, France
| | - E Dernis
- Centre Hospitalier du Mans, Service de Rhumatologie, Le Mans, France
| | - H Nataf
- Private office, 57 boulevard du Marechal Juin, 78200 Mantes la Jolie, France
| | - P Boumier
- Polyclinique de Picardie, Service de Rhumatologie, Amiens, France
| | - P Breuillard
- Private office, 10 rue Claret, 95500 Gonesse, France
| | | | | | - V Gaud-Listrat
- Hôpital Cochin, Assistance Publique, Hôpitaux de Paris, Département de Rhumatologie, Paris; and Private office, 4 place Jules Ferry, 91240 St Michel sur Orge, France
| | - B Giraud
- Private office, 10 rue Henri Amodru, 91190 Gif sur Yvette, France
| | - C Hudry
- Private office, 5 square du Roule, 75008 Paris, France
| | | | - P Le Devic
- Private office, Cabinet Médical de l'Olivier, 2bis rue Stephanson, 78180 Montigny le Bretonneux, France
| | - P Le Goux
- Private office, 118, rue Jean Jaurès, 92800 Puteaux, France
| | - A Lebrun
- Private office, 5 square du Roule, 75008 Paris, France
| | - E Maheu
- Private office, 4 boulevard Beaumarchais, 75011 Paris, France
| | - B Moura
- Private office, 5 square du Roule, 75008 Paris, France
| | - M Nguyen
- Private office, 65 boulevard de Courcelles, 75008 Paris, France
| | - A Sacchi
- Hôpital François Quesnay, Service de Rhumatologie, Mantes la Jolie, France
| | - X Ayral
- Hôpital Cochin, Assistance Publique, Hôpitaux de Paris, Département de Rhumatologie, Paris, France
| | - A Blanchais
- Hôpital Cochin, Assistance Publique, Hôpitaux de Paris, Département de Rhumatologie, Paris, France
| | - S Neveu
- Hôpital Cochin, Assistance Publique, Hôpitaux de Paris, Département de Rhumatologie, Paris, France
| | - M Dougados
- Hôpital Cochin, Assistance Publique, Hôpitaux de Paris, Département de Rhumatologie, Paris; and INSERM (U1153), Clinical Epidemiology and Biostatistics, PRES Sorbonne Paris-Cité, France
| | - A Moltó
- Hôpital Cochin, Assistance Publique, Hôpitaux de Paris, Département de Rhumatologie, Paris; and INSERM (U1153), Clinical Epidemiology and Biostatistics, PRES Sorbonne Paris-Cité, France
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Tchangoulian A, Abou Diwan E, Vincent D, Neveu S, Nader C, Habchy R. Self-oriented CoFe 2O 4composites for non-reciprocal microwave components. EPJ Web of Conferences 2014. [DOI: 10.1051/epjconf/20147506001] [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: 11/14/2022] Open
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Souffir C, Breban S, Neveu S, Paternotte S, Kolta S, Dougados M, Roux C, Briot K. FRI0111 Body mass index (BMI) is not a surrogate of rheumatoid cachexia. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.1238] [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: 11/04/2022]
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Neveu S, Fechtenbaum J, Paternotte S, Breban S, Kolta S, Dougados M, Roux C, Briot K. SAT0083 Abdominal Aortic Calcifications are Associated with Cardiovascular Diseases and Vertebral Fractures in Patients with Rheumatoid Arthritis. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.1809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Ottaviani S, Molto A, Ea HK, Neveu S, Gill G, Brunier L, Palazzo E, Meyer O, Richette P, Bardin T, Allanore Y, Lioté F, Dougados M, Dieudé P. AB0642 Efficacy of anakinra in gouty arthritis in real life population: a report of 36 cases. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.2964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Neveu S, Massart R, Rocher V, Cabuil V. From bulk materials to nanoparticles using a one-step electrochemical method. J Phys Condens Matter 2008; 20:204104. [PMID: 21694234 DOI: 10.1088/0953-8984/20/20/204104] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
This paper describes an electrochemical method which permits us to transform solid metals (cobalt, iron or nickel) into nanoparticles. An electrolysis cell is made, the anode being a metal bar and the cathode a mercury layer. Magnetic nanoparticles are obtained in one step by electroreduction of mercury. Electrolysis is performed in an aqueous medium at pH above 6 in order to avoid the reduction of protons. The magnetic nanoparticles obtained are kept in mercury and can be recovered in an organic solvent.
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Neveu S, Bee A, Robineau M, Talbot D. Size-selective chemical synthesis of tartrate stabilized cobalt ferrite ionic magnetic fluid. J Colloid Interface Sci 2002; 255:293-8. [PMID: 12505076 DOI: 10.1006/jcis.2002.8679] [Citation(s) in RCA: 104] [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] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Ionic magnetic fluid (ferrofluid) is a stable suspension of magnetic nanoparticles in water. Cobalt ferrite nanoparticles are interesting in view of high-density recording storage. The size of the magnetic particles strongly influences the physical properties of the ferrofluids. In this study, we describe the synthesis of ionic magnetic fluid in the presence of tartrate ions. By varying the amount of organic ligands, nanoparticles in a large range of size are obtained: the mean diameter varies from 3 to 10 nm. The effect of tartrate ions on the stability of the ionic magnetic fluid is also studied in relation with the size of the magnetic particles and the amount of adsorbed ligand.
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Affiliation(s)
- S Neveu
- Laboratoire L.I.2.C. Colloides Inorganiques, UMR CNRS 7612, Université Pierre et Marie Curie, Case 63, 4 place Jussieu, 75252 Paris cedex 05, France.
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Lacoste D, Donatini F, Neveu S, Serughetti JA. Photonic hall effect in ferrofluids: theory and experiments. Phys Rev E Stat Phys Plasmas Fluids Relat Interdiscip Topics 2000; 62:3934-3943. [PMID: 11088914 DOI: 10.1103/physreve.62.3934] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2000] [Indexed: 05/23/2023]
Abstract
An experimental and theoretical study on the photonic Hall effect (PHE) in liquid and gelled samples of ferrofluids is presented. The ferrofluids are aqueous colloidal suspensions of Fe2CoO4 particles, which can be considered as anisotropic and absorbing Rayleigh scatterers. The PHE is found to be produced by the orientation of the magnetic moments of the particles, as is also the case for the Faraday effect. The dependence of the PHE with respect to the concentration of the scatterers, the magnetic field, and the polarization of the incident light is measured in liquid and in gelled samples, and is compared to a simple model based on the use of a scattering matrix and the single scattering approximation.
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Affiliation(s)
- D Lacoste
- Department of Physics, University of Pennsylvania, 209 South 33rd Street, Philadelphia, Pennsylvania 19104-6396, USA
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Broussin P, Grison P, Neveu S. [Computerization of care and surveillance of nosocomial infections]. Soins 1999:44-6. [PMID: 10876597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Affiliation(s)
- P Broussin
- Infirmière D.E., Clinique Saint-Charles de La Roche-sur-Yon
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Flament C, Lacis S, Bacri J, Cebers A, Neveu S, Perzynski R. Measurements of ferrofluid surface tension in confined geometry. Phys Rev E Stat Phys Plasmas Fluids Relat Interdiscip Topics 1996; 53:4801-4806. [PMID: 9964808 DOI: 10.1103/physreve.53.4801] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Gris JC, Neveu S, Tailland ML, Courtieu C, Marès P, Schved JF. Use of a low-molecular weight heparin (enoxaparin) or of a phenformin-like substance (moroxydine chloride) in primary early recurrent aborters with an impaired fibrinolytic capacity. Thromb Haemost 1995; 73:362-7. [PMID: 7667816] [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: 01/26/2023]
Abstract
An impaired fibrinolytic capacity, defined as an insufficient venous occlusion-induced shortening of the plasma euglobulin clot lysis time, is a common feature in women suffering from primary early recurrent unexplained miscarriages. We investigated the therapeutic effect of a low-molecular-weight heparin and of a phenformin-like substance. In a prospective, randomized trial, 30 consecutive patients initially received either enoxaparin, 20 mg per day during one month, or moroxydine chloride, 1200 mg per day during one month. In case of fibrinolytic status normalization, they were treated during 6 months by the beneficial treatment which was planned to be continued during eventual pregnancies. Patients with hypofibrinolysis persistence received the alternative treatment during another month and a new evaluation was performed. No treatment was given when a persistent abnormal response to the venous occlusion test was evidenced. In case of positive response, the treatment was continued during 6 months. The primary study end-points consisted of any of the following: effect of the treatments on the fibrinolytic response; number of patients becoming pregnant during the 6 months following the last venous occlusion test; number of full-term pregnancies. Concerning the effects on the fibrinolytic system, 20 out of 29 women responded to the first or second-line enoxaparin treatment whereas only 1 woman out of 19 responded to moroxydine chloride (p = 0.00002). Concerning the effects on fertility, responders to LMWH were more likely to initiate a new pregnancy than non-responders (16/20 vs 2/10, p = 0.002). In patients conceiving, LMWH responders were more likely to obtain live births than nonresponders (13/16 vs. 0/2, p = 0.02).(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- J C Gris
- Laboratoire d'Hématologie, University Hospital, Nîmes, France
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Gris JC, Neveu S, Mares P, Biron C, Hedon B, Schved JF. Plasma fibrinolytic activators and their inhibitors in women suffering from early recurrent abortion of unknown etiology. J Lab Clin Med 1993; 122:606-15. [PMID: 8228580] [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] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The fibrinolytic response to a venous occlusion test was evaluated in 116 consecutive patients who had each had early recurrent miscarriages of unknown origin. A normal response to venous occlusion was defined from the statistical analysis of data obtained in a matched group of 90 women with no past abortion. Seventy-four patients had at least one abnormal fibrinolysis-related test, whereas no member of the control group had any (p < 10(-6)). Fifty-six of the patients had a stasis-induced shortening of the euglobulin clot lysis time that was less than normal (median decrement 3.5% [normal > or = 28%] [p < 10(-6)]). In this subgroup, 17 women also had a poor tissue-type plasminogen activator (tPA) response (median increment 18% [normal > or = 34%] [p < 0.001]). Twenty-one of the 56 had high plasma levels of type 1 plasminogen activator inactivator (PAI-1) as well as a high PAI activity level (p < 0.001 for comparison with normal controls). Sixteen patients had both abnormalities (tPA response blunted and high PAI values). When retested in the same patients, the patterns persisted over time. Nine other habitual aborters had abnormally high type 2 plasminogen activator inhibitor plasma levels (> 4.2 ng/ml). Six other patients had a poor urokinase-type plasminogen activator reactivity to venous occlusion (post-stasis levels lower than 0.18 ng/ml). Thus activators and inhibitors of the fibrinolytic system are frequently abnormal in primary habitual aborters. The current pathogeneses of high PAI-1 concentrations and of impaired tPA reactivity to venous occlusion were not found in these patients. The role of the fibrinolytic components in trophoblast invasiveness has been suspected in animals, and an impaired plasmin-dependent proteolysis in women might favor recurrent abortion by promoting fibrin deposition in early placental circulation or by limiting trophoblast development, or both.
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Affiliation(s)
- J C Gris
- Service de Gynécologie et Obstétrique, CHRU, Nîmes, France
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Hedon B, Bringer J, Boulot P, Audibert F, Benos P, Bachelard B, Neveu S, Arnal F, Humeau C, Mares P. [The use of LHRH analogs in ovulation induction]. Rev Fr Gynecol Obstet 1991; 86:97-9. [PMID: 1905834] [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] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The use of LH-RH agonists is appropriate for the stimulation of ovulation. In contrast, in the case of induction of ovulation in a patient with deficient ovulation, suppression of influences of the hypothalamo-pituitary axis does not modify the pathological condition responsible for the ovulatory anomaly.
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Affiliation(s)
- B Hedon
- Services de Gynécologie-Obstétrique, Faculté de Médecine Montpellier-Nîmes
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Hedon B, Bringer J, Arnal F, Humeau C, Boulot P, Audibert F, Benos P, Neveu S, Mares P, Laffargue F. The use of GnRH agonists with hMG for induction or stimulation of ovulation. Baillieres Clin Obstet Gynaecol 1990; 4:575-87. [PMID: 2126493 DOI: 10.1016/s0950-3552(05)80311-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Bringer J, Boulet F, Clouet S, Hedon B, Mares P, Neveu S, Mirouze J, Jaffiol C. [Pulsatile administration of gonadotropin releasing hormone in the female. Diagnostic and therapeutic indications]. Presse Med 1990; 19:1276-81. [PMID: 2143826] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Prolonged pulsatile exogenous GnRH allows differentiation between hypothalamic and pituitary causes of hypogonadotrophic hypogonadism and is able to induce ovulation and pregnancy in most of women with hypothalamic amenorrhea (HA). When compared with human menopausal gonadotropin, GnRH appears to be a more efficient therapy of HA but yields inferior results in chronic anovulatory patients with persistent LH secretion. Pulsatile GnRH following a GnRH-analog suppression represents a new promising treatment of infertile women with polycystic ovarian syndrome. However such a combined therapy is time-consuming and only permits to attempt 3 to 4 stimulated cycles during a year. Therefore the successful preliminary reports need to be confirmed by a further randomized study.
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Affiliation(s)
- J Bringer
- Service d'Endocrinologie, Hôpital Lapeyronie, Montpellier
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Gris JC, Schved JF, Neveu S, Mares P, Aguilar-Martinez P, Dupaigne D. Impaired fibrinolytic capacity and early recurrent spontaneous abortion. BMJ 1990; 300:1500. [PMID: 2115385 PMCID: PMC1663199 DOI: 10.1136/bmj.300.6738.1500] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- J C Gris
- Department of Haematology and Immunology, University Hospital, Nîmes, France
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Affiliation(s)
- J F Schved
- Laboratoire d'Hématologie, CHRU de Nimes, France
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Schved JF, Gris JC, Neveu S, Mares P, Sarlat C. Variations of factor XII level during pregnancy in a woman with Hageman factor deficiency. Thromb Haemost 1988; 60:526-7. [PMID: 3238657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Hedon B, Bringer J, Neveu S, Arnal F, Montera F, Humeau C. Recurrent abnormal follicular maturation and ovarian stimulation for in-vitro fertilization. Hum Reprod 1988; 3:567-8. [PMID: 3392183] [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: 01/05/2023] Open
Abstract
A total of 1078 cycles were stimulated for in-vitro fertilization between 1 January 1986 and 31 July 1987. One-hundred-and-ninety-six cycles had to be cancelled because of an abnormal ovarian response (18.2%). The majority of these cancellations were due to the phenomenon of follicular atresia (45%) or the absence of follicular growth (30%). Bad responder patients who had undergone cancellation during at least two successive cycles, when compared with normal responder patients, were somewhat older and had more frequent periovarian adhesions and ovulatory defects. The use of a GnRH agonist allowed correction of a certain number of ovarian response inadequacies, but follicular atresia and absence of folliculogenesis remained frequent phenomena.
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Affiliation(s)
- B Hedon
- Services de Gynécologie Obstétrique Montpellier-Nimes, France
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26
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Bouvagnet P, Neveu S, Montoya M, Leger JJ. Development changes in the human cardiac isomyosin distribution: an immunohistochemical study using monoclonal antibodies. Circ Res 1987; 61:329-36. [PMID: 3621496 DOI: 10.1161/01.res.61.3.329] [Citation(s) in RCA: 35] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
With monoclonal antibodies (Mab) specific for myosin heavy chain (MHC) isozymes, we have investigated the isomyosin content of atrial, ventricular and conductive fibers of 19 human fetuses (ranging from 14-36 weeks of gestation) and 3 newborns (2 days-2 weeks). In addition, the conduction system of 2 human adult hearts was studied. The fetal atrium is composed mostly of alpha-MHC during the first 23 weeks of gestation. beta-MHC is already expressed as traces at 14 weeks of gestation, and its expression increases progressively until birth, resulting in a great augmentation in beta-MHC. During this course, beta-MHC always predominates in certain areas (the crista terminalis and the interatrial septum) but not in other areas (the auricles). Preceding birth, the fetal ventricle is composed mostly of beta-MHC. From 14 weeks of gestation to birth, alpha-MHC is expressed in very rare fibers. Then, after birth, a large number of fibers simultaneously synthesize alpha-MHC. The AV node and His bundle system were labelled with anti-alpha and anti-beta Mab in fetal, newborn, and adult hearts with a double gradient of distribution: spatial (a higher proportion of alpha-containing fibers in the AV node than in the distal portion of the bundle of branches) and temporal (a higher proportion of alpha-containing fibers at a given point in fetal development than in the adult heart). One of the twenty-five hearts studied had an isomyosin distribution pattern not accorded to its age. Interestingly, it was clinically diagnosed as having idiopathic hypertrophic cardiomyopathy.
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Neveu S, Hedon B, Bringer J, Chinchole JM, Arnal F, Humeau C, Cristol P, Viala JL. Ovarian stimulation by a combination of a gonadotropin-releasing hormone agonist and gonadotropins for in vitro fertilization. Fertil Steril 1987; 47:639-43. [PMID: 3106101 DOI: 10.1016/s0015-0282(16)59115-8] [Citation(s) in RCA: 165] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
In the first of two studies, 20 patients were selected on the basis of tubal infertility and were randomly assigned to two groups receiving different ovarian stimulation protocols. In group A, 10 patients were given follicle-stimulating hormone (FSH), FSH was continued until the criteria for human chorionic gonadotropin (hCG) administration were satisfied. In group B, 10 patients received Buserelin (0.3 ml twice a day subcutaneously) for 14 days to induce pituitary desensitization. Stimulation with FSH was then started, and Buserelin treatment was continued until hCG administration. In the second study, patients were included if they had had at least two previous attempts at ovarian stimulation that failed to reach the stage of follicular aspiration. Ovarian stimulation was conducted with a combination of Buserelin and human menopausal gonadotropin. Use of the gonadotropin-releasing hormone (GnRH) agonist in in vitro fertilization increased the number of oocytes collected, the fertilization rate, the length of the luteal phase and the pregnancy rate. The GnRH agonist also contributed to a generally better ovarian response in patients whose estradiol production had previously responded poorly to conventional ovarian stimulation protocols.
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De Micheli M, Botineau J, Neveu S, Sibillot P, Ostrowsky DB, Papuchon M. Extension of second-harmonic phase-matching range in lithium niobate guides. Opt Lett 1983; 8:116-118. [PMID: 19714155 DOI: 10.1364/ol.8.000116] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
An extension of the fundamental wavelength phase-matching range for second-harmonic generation based on titanium-indiffused proton-exchanged lithium niobate guides has been demonstrated. Both the theoretical basis and experimental verification are presented.
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De Micheli M, Botineau J, Neveu S, Sibillot P, Ostrowsky DB, Papuchon M. Independent control of index and profiles in proton-exchanged lithium niobate guides. Opt Lett 1983; 8:114-115. [PMID: 19714154 DOI: 10.1364/ol.8.000114] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
We demonstrate the possibility of controlling, practically independently, the form and indices of proton-exchanged lithium niobate guides by means of guide annealing and proton exchange in lithium-rich solutions. Experimental results are presented that indicate how one can realize specific guide designs.
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