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Mirtl M, T Borer E, Djukic I, Forsius M, Haubold H, Hugo W, Jourdan J, Lindenmayer D, McDowell WH, Muraoka H, Orenstein DE, Pauw JC, Peterseil J, Shibata H, Wohner C, Yu X, Haase P. Genesis, goals and achievements of Long-Term Ecological Research at the global scale: A critical review of ILTER and future directions. Sci Total Environ 2018; 626:1439-1462. [PMID: 29898550 DOI: 10.1016/j.scitotenv.2017.12.001] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Revised: 11/28/2017] [Accepted: 12/01/2017] [Indexed: 06/08/2023]
Abstract
Since its founding in 1993 the International Long-term Ecological Research Network (ILTER) has gone through pronounced development phases. The current network comprises 44 active member LTER networks representing 700 LTER Sites and ~80 LTSER Platforms across all continents, active in the fields of ecosystem, critical zone and socio-ecological research. The critical challenges and most important achievements of the initial phase have now become state-of-the-art in networking for excellent science. At the same time increasing integration, accelerating technology, networking of resources and a strong pull for more socially relevant scientific information have been modifying the mission and goals of ILTER. This article provides a critical review of ILTER's mission, goals, development and impacts. Major characteristics, tools, services, partnerships and selected examples of relative strengths relevant for advancing ILTER are presented. We elaborate on the tradeoffs between the needs of the scientific community and stakeholder expectations. The embedding of ILTER in an increasingly collaborative landscape of global environmental observation and ecological research networks and infrastructures is also reflected by developments of pioneering regional and national LTER networks such as SAEON in South Africa, CERN/CEOBEX in China, TERN in Australia or eLTER RI in Europe. The primary role of ILTER is currently seen as a mechanism to investigate ecosystem structure, function, and services in response to a wide range of environmental forcings using long-term, place-based research. We suggest four main fields of activities and advancements for the next decade through development/delivery of a: (1) Global multi-disciplinary community of researchers and research institutes; (2) Strategic global framework and strong partnerships in ecosystem observation and research; (3) Global Research Infrastructure (GRI); and (4) a scientific knowledge factory for societally relevant information on sustainable use of natural resources.
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Affiliation(s)
- M Mirtl
- Environment Agency Austria, Spittelauer Lände 5, 1090 Wien, Austria; Helmholtz Centre for Environmental Research - UFZ, Department of Community Ecology, Theodor-Lieser-Strasse 4, D-06120 Halle, Germany.
| | - E T Borer
- Department of Ecology, Evolution, and Behavior, 1987 Upper Buford Circle, Suite 100, University of Minnesota, St. Paul, MN 55108, USA
| | - I Djukic
- Environment Agency Austria, Spittelauer Lände 5, 1090 Wien, Austria
| | - M Forsius
- Finnish Environment Institute SYKE, P.O.Box 140, FI-00251 Helsinki, Finland
| | - H Haubold
- Environment Agency Austria, Spittelauer Lände 5, 1090 Wien, Austria
| | - W Hugo
- South African Environmental Observation Network (SAEON) of the National Research Foundation (NRF), 41 De Havilland Crescent, The Woods, Persequor Park, PO Box 2600, Pretoria 0001, South Africa
| | - J Jourdan
- Senckenberg Research Institute and Natural History Museum Frankfurt, Department of River Ecology and Conservation, Clamecystraße 12, 63571 Gelnhausen, Germany
| | - D Lindenmayer
- Fenner School of Environment and Society, Frank Fenner Building (Bldg 141), The ANU College of Medicine, Biology & Environment, The Australian National University, Acton, ACT 2601, Australia
| | - W H McDowell
- Department of Natural Resources and the Environment, University of New Hampshire, Rudman Hall, 46 College Road, Durham, NH 03824, USA
| | - H Muraoka
- River Basin Research Center, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
| | - D E Orenstein
- Faculty of Architecture and Town Planning, Technion - Israel Institute of Technology, Technion City, Haifa 32000, Israel
| | - J C Pauw
- South African Environmental Observation Network (SAEON) of the National Research Foundation (NRF), 41 De Havilland Crescent, The Woods, Persequor Park, PO Box 2600, Pretoria 0001, South Africa
| | - J Peterseil
- Environment Agency Austria, Spittelauer Lände 5, 1090 Wien, Austria
| | - H Shibata
- Field Science Center for Northern Biosphere, Hokkaido University, N9 W9, Kita-ku, Sapporo 060-0809, Japan
| | - C Wohner
- Environment Agency Austria, Spittelauer Lände 5, 1090 Wien, Austria
| | - X Yu
- Chinese Ecosystem Research Network (CERN), Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, 11A Datun Road, Chaoyang District, Beijing 100101, China
| | - P Haase
- Senckenberg Research Institute and Natural History Museum Frankfurt, Department of River Ecology and Conservation, Clamecystraße 12, 63571 Gelnhausen, Germany; Faculty of Biology, University of Duisburg-Essen, 45141 Essen, Germany
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Duclos A, Peix JL, Piriou V, Occelli P, Denis A, Bourdy S, Carty MJ, Gawande AA, Debouck F, Vacca C, Lifante JC, Colin C, Aegerter P, Aouifi A, Arickx D, Aubart F, Baudrin D, Berry WR, Beuvry C, Bonnet F, Bouveret L, Cabarrot P, Cames E, Carty MJ, Caton J, Chenitz MC, Clergues F, Colin C, Coudray JM, Damiens M, Dauzac C, Debono B, Debouck F, De Germay B, Deleforterie AC, Denis A, Desrousseaux JF, Didelot MP, Doat B, Domingo-Saidji NY, Duclos A, Durieux P, Fessy M, Hardy P, Cariven P, Fontas N, Ganansia P, Gawande AA, Giraud F, Gostiaux G, Habi S, Haga S, Houlgatte A, Jaffe M, Jourdan J, Kaczmarek N, Lamblin S, Level C, Liaras E, Lifante JC, Lipsitz SR, Majchrzak C, Malavaud B, Serres TM, Martin X, Martinet C, Maupetit B, Michel P, Movondo A, Naamani B, Nacry R, Occelli P, Olousouzian S, Papin P, Paquet JC, Parfaite A, Pattou F, Paugam C, Pavy E, Peix JL, Petit H, Pierre S, Piriou V, Poupon Bourdy S, Pradere B, Quesne M, Radola Y, Raould A, Rongieras F, Rouquette I, Sanders V, Sanz F, Sens F, Surmont S, Sicre C, Tabur D, Targosz P, Thery D, Toppan N, Usandizaga G, Vacca C, Verheyde I, Zadegan F. Cluster randomized trial to evaluate the impact of team training on surgical outcomes. Br J Surg 2016; 103:1804-1814. [DOI: 10.1002/bjs.10295] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Revised: 05/07/2016] [Accepted: 07/15/2016] [Indexed: 11/10/2022]
Abstract
Abstract
Background
The application of safety principles from the aviation industry to the operating room has offered hope in reducing surgical complications. This study aimed to assess the impact on major surgical complications of adding an aviation-based team training programme after checklist implementation.
Methods
A prospective parallel-group cluster trial was undertaken between September 2011 and March 2013. Operating room teams from 31 hospitals were assigned randomly to participate in a team training programme focused on major concepts of crew resource management and checklist utilization. The primary outcome measure was the occurrence of any major adverse event, including death, during the hospital stay within the first 30 days after surgery. Using a difference-in-difference approach, the ratio of the odds ratios (ROR) was estimated to compare changes in surgical outcomes between intervention and control hospitals.
Results
Some 22 779 patients were enrolled, including 5934 before and 16 845 after team training implementation. The risk of major adverse events fell from 8·8 to 5·5 per cent in 16 intervention hospitals (adjusted odds ratio 0·57, 95 per cent c.i. 0·48 to 0·68; P < 0·001) and from 7·9 to 5·4 per cent in 15 control hospitals (odds ratio 0·64, 0·50 to 0·81; P < 0·001), resulting in the absence of difference between arms (ROR 0·90, 95 per cent c.i. 0·67 to 1·21; P = 0·474). Outcome trends revealed significant improvements among ten institutions, equally distributed across intervention and control hospitals.
Conclusion
Surgical outcomes improved substantially, with no difference between trial arms. Successful implementation of an aviation-based team training programme appears to require modification and adaptation of its principles in the context of the the surgical milieu. Registration number: NCT01384474 (http://www.clinicaltrials.gov).
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Affiliation(s)
- A Duclos
- Pôle Information Médicale Evaluation Recherche, Hospices Civils de Lyon, Lyon, France
- Health Services and Performance Research Laboratory, Université Claude Bernard Lyon 1, EA, 7425, Lyon, France
- Center for Surgery and Public Health, Brigham and Women's Hospital – Harvard Medical School, Boston, Massachusetts, USA
| | - J L Peix
- Service de Chirurgie Générale et Endocrinienne, Pierre Bénite, France
| | - V Piriou
- Health Services and Performance Research Laboratory, Université Claude Bernard Lyon 1, EA, 7425, Lyon, France
- Service d'Anesthésie Réanimation Médicale et Chirurgicale, Hospices Civils de Lyon, Centre Hospitalier Lyon Sud, Pierre Bénite, France
| | - P Occelli
- Pôle Information Médicale Evaluation Recherche, Hospices Civils de Lyon, Lyon, France
- Health Services and Performance Research Laboratory, Université Claude Bernard Lyon 1, EA, 7425, Lyon, France
| | - A Denis
- Pôle Information Médicale Evaluation Recherche, Hospices Civils de Lyon, Lyon, France
| | - S Bourdy
- Pôle Information Médicale Evaluation Recherche, Hospices Civils de Lyon, Lyon, France
| | - M J Carty
- Center for Surgery and Public Health, Brigham and Women's Hospital – Harvard Medical School, Boston, Massachusetts, USA
| | - A A Gawande
- Center for Surgery and Public Health, Brigham and Women's Hospital – Harvard Medical School, Boston, Massachusetts, USA
- Ariadne Labs and Harvard Chan School of Public Health, Boston, Massachusetts, USA
| | - F Debouck
- Air France Consulting, AFM42, Chambourcy, France
| | - C Vacca
- Coordination pour l'Evaluation des Pratiques Professionnelles en Santé en Rhône-Alpes, Lyon, France
| | - J C Lifante
- Health Services and Performance Research Laboratory, Université Claude Bernard Lyon 1, EA, 7425, Lyon, France
- Service de Chirurgie Générale et Endocrinienne, Pierre Bénite, France
| | - C Colin
- Pôle Information Médicale Evaluation Recherche, Hospices Civils de Lyon, Lyon, France
- Health Services and Performance Research Laboratory, Université Claude Bernard Lyon 1, EA, 7425, Lyon, France
| | | | | | | | | | - D Baudrin
- Agence Régional de Santé de Toulouse
| | | | | | - F Bonnet
- Assistance Publique-Hôpitaux de Paris
| | | | | | - E Cames
- Centre Hospitalier Universitaire de Toulouse
| | - M J Carty
- Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - J Caton
- Clinique Emile Vialar de Lyon
| | | | | | | | | | | | - C Dauzac
- Assistance Publique-Hôpitaux de Paris
| | - B Debono
- Clinique des Cèdres de Cornebarrieu
| | | | | | | | | | | | | | | | | | | | - P Durieux
- Assistance Publique-Hôpitaux de Paris
| | | | - P Hardy
- Assistance Publique-Hôpitaux de Paris
| | | | - N Fontas
- Centre Hospitalier Universitaire de Toulouse
| | | | - A A Gawande
- Brigham and Women's Hospital, Boston, Massachusetts, USA
| | | | | | - S Habi
- Centre Hospitalier de Vienne
| | - S Haga
- Infirmerie Protestante de Lyon
| | - A Houlgatte
- Hôpital d'Instruction des Armées du Val de Grâce
| | - M Jaffe
- Clinique Ambroise Paré de Toulouse
| | | | | | | | - C Level
- Assistance Publique-Hôpitaux de Paris
| | - E Liaras
- Hôpital Privé de Natécia de Lyon
| | | | - S R Lipsitz
- Brigham and Women's Hospital, Boston, Massachusetts, USA
| | | | - B Malavaud
- Centre Hospitalier Régional Universitaire de Toulouse
| | | | | | | | | | | | | | | | | | | | | | - P Papin
- Centre Hospitalier de Villefranche sur Saône
| | | | | | - F Pattou
- Centre Hospitalier Régional Universitaire de Lille
| | - C Paugam
- Assistance Publique-Hôpitaux de Paris
| | - E Pavy
- Hôpital Simone Veil d'Eaubonne
| | | | | | - S Pierre
- Institut Claudius Régaud de Toulouse
| | | | | | - B Pradere
- Centre Hospitalier Régional Universitaire de Lille
| | | | - Y Radola
- Centre Hospitalier Régional Universitaire de Lille
| | - A Raould
- Assistance Publique-Hôpitaux de Paris
| | - F Rongieras
- Hôpital d'Instruction des Armées Desgenettes de Lyon
| | | | - V Sanders
- Centre Hospitalier Régional Universitaire de Lille
| | - F Sanz
- Centre Hospitalier Régional Universitaire de Lille
| | | | | | | | | | | | - D Thery
- Institut Catholique de Lille
| | - N Toppan
- Clinique de l'Union de Saint Jean
| | | | - C Vacca
- Coordination pour l'Evaluation des Pratiques Professionnelles en Santé en Rhône-Alpes de Lyon
| | | | - F Zadegan
- Assistance Publique-Hôpitaux de Paris
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Al-Mamari SA, Jourdan J, Boukaidi S, Quintens H, Marsaud A, Carpentier X, Arnaud P, Mentine N, Durand M, Amiel J, Chevallier D. [Ipsilateral dual kidney transplantation: a monocentric experience about 15 cases and literature review]. Prog Urol 2014; 24:87-93. [PMID: 24485077 DOI: 10.1016/j.purol.2013.09.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2013] [Revised: 08/01/2013] [Accepted: 09/09/2013] [Indexed: 11/25/2022]
Abstract
OBJECTIVE Our study aimed to support the viability of the concept of Ipsilateral Dual Kidney Transplantation (DKT) by presenting our initial experience and proposing a review of the literature in this subject. METHODS Fifteen ipsilateral DKT were performed at Nice University Hospital between August 2010 and March 2012. We have described our skin incision preferences, the vascular anastomoses, and the uretero-vesical reimplantation. We have analyzed the operative duration, the cold ischemia time (CIT) of both transplants, the blood transfusion volume, the intraoperative and postoperative complications, the time to diuresis recovery, the hospital stay, and the kinetics of the creatinine clearance until the third postoperative month. We have compared our results with those of the literature. RESULTS The average CIT of the first transplant (T1) was 17.5 ± 3.3 hours, and that of the second (T2) was 18.4 ± 3.3 hours. The mean operating time was 234 ± 67 minutes. Patients received an average of 2 units of blood during surgery [0-4] and 1.8 units in the postoperative period [0-15]. The complications rate was 26.7% and included an intraoperative T2 artery thrombosis and 3 postoperative complications consistent with a hematoma, a T2 ureteric necrosis and a T2 venous thrombosis. Two transplants were lost (6.7%) and one death (6.7%) was reported on day 40. The average length of hospital stay was 20.9 ± 7.8 days. The mean creatinine clearance values were 12.6 mL/min at D2, 35.6 mL/min at D7, 44.9 mL/min on discharge, and 48.2 mL/min at D90. CONCLUSION Our results supported the viability of the dual kidney transplantation concept. Furthermore the ipsilateral approach shortened the procedure and limited the surgical trauma by preserving the contralateral iliac fossa, without compromising renal function recovery or increasing morbidity.
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Affiliation(s)
- S A Al-Mamari
- Service d'urologie, hôpital l'Archet 2, CHU de Nice, 151, route Saint-Antoine-de-Ginestière, BP 06202, 23079 Nice cedex 3, France.
| | - J Jourdan
- Service d'urologie, hôpital l'Archet 2, CHU de Nice, 151, route Saint-Antoine-de-Ginestière, BP 06202, 23079 Nice cedex 3, France
| | - S Boukaidi
- Service d'urologie, hôpital l'Archet 2, CHU de Nice, 151, route Saint-Antoine-de-Ginestière, BP 06202, 23079 Nice cedex 3, France
| | - H Quintens
- Service d'urologie, hôpital l'Archet 2, CHU de Nice, 151, route Saint-Antoine-de-Ginestière, BP 06202, 23079 Nice cedex 3, France
| | - A Marsaud
- Service d'urologie, hôpital l'Archet 2, CHU de Nice, 151, route Saint-Antoine-de-Ginestière, BP 06202, 23079 Nice cedex 3, France
| | - X Carpentier
- Service d'urologie, hôpital l'Archet 2, CHU de Nice, 151, route Saint-Antoine-de-Ginestière, BP 06202, 23079 Nice cedex 3, France
| | - P Arnaud
- Service d'urologie, hôpital l'Archet 2, CHU de Nice, 151, route Saint-Antoine-de-Ginestière, BP 06202, 23079 Nice cedex 3, France
| | - N Mentine
- Service d'urologie, hôpital l'Archet 2, CHU de Nice, 151, route Saint-Antoine-de-Ginestière, BP 06202, 23079 Nice cedex 3, France
| | - M Durand
- Service d'urologie, hôpital l'Archet 2, CHU de Nice, 151, route Saint-Antoine-de-Ginestière, BP 06202, 23079 Nice cedex 3, France
| | - J Amiel
- Service d'urologie, hôpital l'Archet 2, CHU de Nice, 151, route Saint-Antoine-de-Ginestière, BP 06202, 23079 Nice cedex 3, France
| | - D Chevallier
- Service d'urologie, hôpital l'Archet 2, CHU de Nice, 151, route Saint-Antoine-de-Ginestière, BP 06202, 23079 Nice cedex 3, France
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Ahl-Manary S, Jourdan J, Carpentier X, Arnaud P, Mentine N, Durand M, Quintens H, Boukaidi S, Marsaud A, Chevallier D, Amiel J. Bi-transplantation rénale par abord ipsilatéral : expérience d’un centre à propos de 15 patients opérés consécutivement et revue de la littérature. Prog Urol 2012. [DOI: 10.1016/j.purol.2012.08.081] [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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Fomin N, Arrington J, Asaturyan R, Benmokhtar F, Boeglin W, Bosted P, Bruell A, Bukhari MHS, Christy ME, Chudakov E, Clasie B, Connell SH, Dalton MM, Daniel A, Day DB, Dutta D, Ent R, El Fassi L, Fenker H, Filippone BW, Garrow K, Gaskell D, Hill C, Holt RJ, Horn T, Jones MK, Jourdan J, Kalantarians N, Keppel CE, Kiselev D, Kotulla M, Lindgren R, Lung AF, Malace S, Markowitz P, McKee P, Meekins DG, Mkrtchyan H, Navasardyan T, Niculescu G, Opper AK, Perdrisat C, Potterveld DH, Punjabi V, Qian X, Reimer PE, Roche J, Rodriguez VM, Rondon O, Schulte E, Seely J, Segbefia E, Slifer K, Smith GR, Solvignon P, Tadevosyan V, Tajima S, Tang L, Testa G, Trojer R, Tvaskis V, Vulcan WF, Wasko C, Wesselmann FR, Wood SA, Wright J, Zheng X. New measurements of high-momentum nucleons and short-range structures in nuclei. Phys Rev Lett 2012; 108:092502. [PMID: 22463628 DOI: 10.1103/physrevlett.108.092502] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2011] [Indexed: 05/31/2023]
Abstract
We present new measurements of electron scattering from high-momentum nucleons in nuclei. These data allow an improved determination of the strength of two-nucleon correlations for several nuclei, including light nuclei where clustering effects can, for the first time, be examined. The data also include the kinematic region where three-nucleon correlations are expected to dominate.
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Affiliation(s)
- N Fomin
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
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Jeribi A, Berguignat M, Carpentier X, Jourdan J, Cassuto-Viguier E, Albano L. NGAL et Cystatine C : 2 biomarqueurs plasmatiques précoces, prédictifs de la reprise de fonction en transplantation rénale. Nephrol Ther 2011. [DOI: 10.1016/j.nephro.2011.07.270] [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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Antonov A, Gaidarov M, Ivanov M, Kadrev D, Aïche M, Barreau G, Czajkowski S, Jurado B, Belier G, Chatillon A, Granier T, Taieb J, Doré D, Letourneau A, Ridikas D, Dupont E, Berthoumieux E, Panebianco S, Farget F, Schmitt C, Audouin L, Khan E, Tassan-Got L, Aumann T, Beller P, Boretzky K, Dolinskii A, Egelhof P, Emling H, Franzke B, Geissel H, Kelic-Heil A, Kester O, Kurz N, Litvinov Y, Münzenberg G, Nolden F, Schmidt KH, Scheidenberger C, Simon H, Steck M, Weick H, Enders J, Pietralla N, Richter A, Schrieder G, Zilges A, Distler M, Merkel H, Müller U, Junghans A, Lenske H, Fujiwara M, Suda T, Kato S, Adachi T, Hamieh S, Harakeh M, Kalantar-Nayestanaki N, Wörtche H, Berg G, Koop I, Logatchov P, Otboev A, Parkhomchuk V, Shatilov D, Shatunov P, Shatunov Y, Shiyankov S, Shvartz D, Skrinsky A, Chulkov L, Danilin B, Korsheninnikov A, Kuzmin E, Ogloblin A, Volkov V, Grishkin Y, Lisin V, Mushkarenkov A, Nedorezov V, Polonski A, Rudnev N, Turinge A, Artukh A, Avdeichikov V, Ershov S, Fomichev A, Golovkov M, Gorshkov A, Grigorenko L, Klygin S, Krupko S, Meshkov I, Rodin A, Sereda Y, Seleznev I, Sidorchuk S, Syresin E, Stepantsov S, Ter-Akopian G, Teterev Y, Vorontsov A, Kamerdzhiev S, Litvinova E, Karataglidis S, Alvarez Rodriguez R, Borge M, Fernandez Ramirez C, Garrido E, Sarriguren P, Vignote J, Fraile Prieto L, Lopez Herraiz J, Moya de Guerra E, Udias-Moinelo J, Amaro Soriano J, Lallena Rojo A, Caballero J, Johansson H, Jonson B, Nilsson T, Nyman G, Zhukov M, Golubev P, Rudolph D, Hencken K, Jourdan J, Krusche B, Rauscher T, Kiselev D, Trautmann D, Al-Khalili J, Catford W, Johnson R, Stevenson P, Barton C, Jenkins D, Lemmon R, Chartier M, Cullen D, Bertulani C, Heinz A. The electron–ion scattering experiment ELISe at the International Facility for Antiproton and Ion Research (FAIR)—A conceptual design study. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 2011. [DOI: 10.1016/j.nima.2010.12.246] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Fomin N, Arrington J, Day DB, Gaskell D, Daniel A, Seely J, Asaturyan R, Benmokhtar F, Boeglin W, Boillat B, Bosted P, Bruell A, Bukhari MHS, Christy ME, Chudakov E, Clasie B, Connell SH, Dalton MM, Dutta D, Ent R, El Fassi L, Fenker H, Filippone BW, Garrow K, Hill C, Holt RJ, Horn T, Jones MK, Jourdan J, Kalantarians N, Keppel CE, Kiselev D, Kotulla M, Lindgren R, Lung AF, Malace S, Markowitz P, McKee P, Meekins DG, Miyoshi T, Mkrtchyan H, Navasardyan T, Niculescu G, Okayasu Y, Opper AK, Perdrisat C, Potterveld DH, Punjabi V, Qian X, Reimer PE, Roche J, Rodriguez VM, Rondon O, Schulte E, Segbefia E, Slifer K, Smith GR, Solvignon P, Tadevosyan V, Tajima S, Tang L, Testa G, Trojer R, Tvaskis V, Vulcan WF, Wasko C, Wesselmann FR, Wood SA, Wright J, Zheng X. Scaling of the F2 structure function in nuclei and quark distributions at x>1. Phys Rev Lett 2010; 105:212502. [PMID: 21231294 DOI: 10.1103/physrevlett.105.212502] [Citation(s) in RCA: 2] [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: 08/20/2010] [Indexed: 05/30/2023]
Abstract
We present new data on electron scattering from a range of nuclei taken in Hall C at Jefferson Lab. For heavy nuclei, we observe a rapid falloff in the cross section for x>1, which is sensitive to short-range contributions to the nuclear wave function, and in deep inelastic scattering corresponds to probing extremely high momentum quarks. This result agrees with higher energy muon scattering measurements, but is in sharp contrast to neutrino scattering measurements which suggested a dramatic enhancement in the distribution of the "superfast" quarks probed at x>1. The falloff at x>1 is noticeably stronger in 2H and 3He, but nearly identical for all heavier nuclei.
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Affiliation(s)
- N Fomin
- University of Virginia, Charlottesville, Virginia, USA
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Slifer K, Rondón OA, Aghalaryan A, Ahmidouch A, Asaturyan R, Bloch F, Boeglin W, Bosted P, Carasco C, Carlini R, Cha J, Chen JP, Christy ME, Cole L, Coman L, Crabb D, Danagoulian S, Day D, Dunne J, Elaasar M, Ent R, Fenker H, Frlez E, Gaskell D, Gan L, Gomez J, Hu B, Jourdan J, Jones MK, Keith C, Keppel CE, Khandaker M, Klein A, Kramer L, Liang Y, Lichtenstadt J, Lindgren R, Mack D, McKee P, McNulty D, Meekins D, Mkrtchyan H, Nasseripour R, Niculescu I, Normand K, Norum B, Pocanic D, Prok Y, Raue B, Reinhold J, Roche J, Kiselev D, Savvinov N, Sawatzky B, Seely M, Sick I, Smith C, Smith G, Stepanyan S, Tang L, Tajima S, Testa G, Vulcan W, Wang K, Warren G, Wesselmann FR, Wood S, Yan C, Yuan L, Yun J, Zeier M, Zhu H. Probing quark-gluon interactions with transverse polarized scattering. Phys Rev Lett 2010; 105:101601. [PMID: 20867509 DOI: 10.1103/physrevlett.105.101601] [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] [Received: 08/15/2009] [Revised: 08/24/2010] [Indexed: 05/29/2023]
Abstract
We have extracted QCD matrix elements from our data on doubly polarized inelastic scattering of electrons on nuclei. We find the higher twist matrix element d˜2, which arises strictly from quark-gluon interactions, to be unambiguously nonzero. The data also reveal an isospin dependence of higher twist effects if we assume that the Burkhardt-Cottingham sum rule is valid. The fundamental Bjorken sum rule obtained from the a0 matrix element is satisfied at our low momentum transfer.
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Affiliation(s)
- K Slifer
- University of Virginia, Charlottesville, Virginia 22903, USA
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10
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Seely J, Daniel A, Gaskell D, Arrington J, Fomin N, Solvignon P, Asaturyan R, Benmokhtar F, Boeglin W, Boillat B, Bosted P, Bruell A, Bukhari MHS, Christy ME, Clasie B, Connell S, Dalton MM, Day D, Dunne J, Dutta D, El Fassi L, Ent R, Fenker H, Filippone BW, Gao H, Hill C, Holt RJ, Horn T, Hungerford E, Jones MK, Jourdan J, Kalantarians N, Keppel CE, Kiselev D, Kotulla M, Lee C, Lung AF, Malace S, Meekins DG, Mertens T, Mkrtchyan H, Navasardyan T, Niculescu G, Niculescu I, Nomura H, Okayasu Y, Opper AK, Perdrisat C, Potterveld DH, Punjabi V, Qian X, Reimer PE, Roche J, Rodriguez VM, Rondon O, Schulte E, Segbefia E, Slifer K, Smith GR, Tadevosyan V, Tajima S, Tang L, Testa G, Trojer R, Tvaskis V, Vulcan WF, Wesselmann FR, Wood SA, Wright J, Yuan L, Zheng X. New measurements of the European Muon Collaboration effect in very light nuclei. Phys Rev Lett 2009; 103:202301. [PMID: 20365978 DOI: 10.1103/physrevlett.103.202301] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2009] [Revised: 07/27/2009] [Indexed: 05/29/2023]
Abstract
New Jefferson Lab data are presented on the nuclear dependence of the inclusive cross section from (2)H, (3)He, (4)He, (9)Be and (12)C for 0.3 < x < 0.9, Q(2) approximately 3-6 GeV(2). These data represent the first measurement of the EMC effect for (3)He at large x and a significant improvement for (4)He. The data do not support previous A-dependent or density-dependent fits to the EMC effect and suggest that the nuclear dependence of the quark distributions may depend on the local nuclear environment.
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Affiliation(s)
- J Seely
- Laboratory for Nuclear Science, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
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11
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Fraisse T, Brunel AS, Arnaud E, Balducchi JP, Jourdan J, de Wazières B, Sotto A. Manifestations originales au cours de la polychondrite atrophiante : à propos de quatre cas. Rev Med Interne 2008; 29:801-4. [DOI: 10.1016/j.revmed.2008.03.370] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2007] [Accepted: 03/29/2008] [Indexed: 01/18/2023]
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12
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Sarrau S, Jourdan J, Dupuis-Soyris F, Verwaerde P. Effects of postoperative ketamine infusion on pain control and feeding behaviour in bitches undergoing mastectomy. J Small Anim Pract 2007; 48:670-6. [PMID: 17725589 DOI: 10.1111/j.1748-5827.2007.00362.x] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.9] [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: 11/30/2022]
Abstract
OBJECTIVES To determine if ketamine administered to bitches at the end of a mastectomy, followed by a six-hour constant rate infusion (CRI), improved postoperative opioid analgesia and feeding behaviour. METHODS The bitches were randomised into three groups: the placebo group received 0.09 ml/kg isotonic saline intravenously followed by a six-hour CRI of 0.5 ml/kg/hour, the low-dose ketamine received 150 microg/kg ketamine intravenously followed by a six-hour CRI of 2 microg/kg/minute and the high-dose ketamine group received 700 microg/kg ketamine intravenously followed by a six-hour CRI of 10 microg/kg/minute. Any additional opioids given were recorded at the time of extubation and at intervals after extubation. Food intake was evaluated eight (T8) and 20 (T20) hours after extubation by measuring the per cent coverage of basal energy requirements (BER). RESULTS No significant difference was observed for opioid requirements between the three groups. The mean percentages of BER coverage did not differ significantly at T8 but the difference between the high-dose and low-dose ketamine groups (P=0.014), and the high-dose ketamine and placebo groups (P=0.038) was significant at T20. CLINICAL SIGNIFICANCE This study demonstrated that 700 microg/kg ketamine given intravenously postoperatively followed by a six-hour ketamine CRI of 10 microg/kg/minute improved patient feeding behaviour.
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Affiliation(s)
- S Sarrau
- National Veterinary School of Toulouse, Anaesthesia and Critical Care Unit, 23, Chemin des Capelles, 31076 Toulouse Cedex, France
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13
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Fraisse T, Brunel A, Arnaud E, Balducchi J, Jourdan J, de Wazieres B, Sotto A. Manifestations originales au cours de la polychondrite atrophiante: à propos de quatre cas. Rev Med Interne 2007. [DOI: 10.1016/j.revmed.2007.03.287] [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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14
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Wesselmann FR, Slifer K, Tajima S, Aghalaryan A, Ahmidouch A, Asaturyan R, Bloch F, Boeglin W, Bosted P, Carasco C, Carlini R, Cha J, Chen JP, Christy ME, Cole L, Coman L, Crabb D, Danagoulian S, Day D, Dunne J, Elaasar M, Ent R, Fenker H, Frlez E, Gan L, Gaskell D, Gomez J, Hu B, Jones MK, Jourdan J, Keith C, Keppel CE, Khandaker M, Klein A, Kramer L, Liang Y, Lichtenstadt J, Lindgren R, Mack D, McKee P, McNulty D, Meekins D, Mkrtchyan H, Nasseripour R, Niculescu I, Normand K, Norum B, Pocanic D, Prok Y, Raue B, Reinhold J, Roche J, Rohe D, Rondón OA, Savvinov N, Sawatzky B, Seely M, Sick I, Smith C, Smith G, Stepanyan S, Tang L, Testa G, Vulcan W, Wang K, Warren G, Wood S, Yan C, Yuan L, Yun J, Zeier M, Zhu H. Proton spin structure in the resonance region. Phys Rev Lett 2007; 98:132003. [PMID: 17501192 DOI: 10.1103/physrevlett.98.132003] [Citation(s) in RCA: 1] [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: 08/01/2006] [Indexed: 05/15/2023]
Abstract
We have examined the spin structure of the proton in the region of the nucleon resonances (1.085 GeV<W<1.910 GeV) at an average four momentum transfer of Q2=1.3 GeV2. Using the Jefferson Lab polarized electron beam, a spectrometer, and a polarized solid target, we measured the asymmetries A|| and A(perpendicular) to high precision, and extracted the asymmetries A1 and A2, and the spin structure functions g1 and g2. We found a notably nonzero A(perpendicular), significant contributions from higher-twist effects, and only weak support for polarized quark-hadron duality.
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15
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Rohe D, Armstrong CS, Asaturyan R, Baker OK, Bueltmann S, Carasco C, Day D, Ent R, Fenker HC, Garrow K, Gasparian A, Gueye P, Hauger M, Honegger A, Jourdan J, Keppel CE, Kubon G, Lindgren R, Lung A, Mack DJ, Mitchell JH, Mkrtchyan H, Mocelj D, Normand K, Petitjean T, Rondon O, Segbefia E, Sick I, Stepanyan S, Tang L, Tiefenbacher F, Vulcan WF, Warren G, Wood SA, Yuan L, Zeier M, Zhu H, Zihlmann B. Correlated strength in the nuclear spectral function. Phys Rev Lett 2004; 93:182501. [PMID: 15525158 DOI: 10.1103/physrevlett.93.182501] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2004] [Indexed: 05/24/2023]
Abstract
We have carried out an (e,e'p) experiment at high momentum transfer and in parallel kinematics to measure the strength of the nuclear spectral function S(k,E) at high nucleon momenta k and large removal energies E. This strength is related to the presence of short-range and tensor correlations, and was known hitherto only indirectly and with considerable uncertainty from the lack of strength in the independent-particle region. This experiment locates by direct measurement the correlated strength predicted by theory.
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Affiliation(s)
- D Rohe
- University of Basel, CH-4056 Basel, Switzerland
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16
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Warren G, Wesselmann F, Zhu H, McKee P, Savvinov N, Zeier M, Aghalaryan A, Ahmidouch A, Arenhövel H, Asaturyan R, Ben-Dayan I, Bloch F, Boeglin W, Boillat B, Breuer H, Brower J, Carasco C, Carl M, Carlini R, Cha J, Chant N, Christy E, Cole L, Coman L, Coman M, Crabb D, Danagoulian S, Day D, Duek K, Dunne J, Elaasar M, Ent R, Farrell J, Fatemi R, Fawcett D, Fenker H, Forest T, Garrow K, Gasparian A, Goussev I, Gueye P, Harvey M, Hauger M, Herrera R, Hu B, Jaegle I, Jones M, Jourdan J, Keith C, Kelly J, Keppel C, Khandaker M, Klein A, Klimenko A, Kramer L, Krusche B, Kuhn S, Liang Y, Lichtenstadt J, Lindgren R, Liu J, Lung A, Mack D, Maclachlan G, Markowitz P, McNulty D, Meekins D, Mitchell J, Mkrtchyan H, Nasseripour R, Niculescu I, Normand K, Norum B, Opper A, Piasetzky E, Pierce J, Pitt M, Prok Y, Raue B, Reinhold J, Roche J, Rohe D, Rondon O, Sacker D, Sawatzky B, Seely M, Sick I, Simicevic N, Smith C, Smith G, Steinacher M, Stepanyan S, Stout J, Tadevosyan V, Tajima S, Tang L, Testa G, Trojer R, Vlahovic B, Vulcan B, Wang K, Wells S, Woehrle H, Wood S, Yan C, Yanay Y, Yuan L, Yun J, Zihlmann B. Measurement of the electric form factor of the neutron at Q2=0.5 and 1.0 GeV2/c2. Phys Rev Lett 2004; 92:042301. [PMID: 14995367 DOI: 10.1103/physrevlett.92.042301] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2003] [Indexed: 05/24/2023]
Abstract
The electric form factor of the neutron was determined from measurements of the d-->(e-->,e'n)p reaction for quasielastic kinematics. Polarized electrons were scattered off a polarized deuterated ammonia (15ND3) target in which the deuteron polarization was perpendicular to the momentum transfer. The scattered electrons were detected in a magnetic spectrometer in coincidence with neutrons in a large solid angle detector. We find G(n)(E)=0.0526+/-0.0033(stat)+/-0.0026(sys) and 0.0454+/-0.0054+/-0.0037 at Q(2)=0.5 and 1.0 (GeV/c)(2), respectively.
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Affiliation(s)
- G Warren
- Universität Basel, CH-4056 Basel, Switzerland
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17
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Jourdan E, Topart D, Richard B, Jourdan J, Sotto A. Severe autoimmune hemolytic anemia following rituximab therapy in a patient with a lymphoproliferative disorder. Leuk Lymphoma 2003; 44:889-90. [PMID: 12802933 DOI: 10.1080/1042819021000055110] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.4] [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
Rituximab (chimeric anti-CD20 IgG1 monoclonal antibody) is effective in the treatment of relapsed/refractory low-grade lymphomas of B-cell origin as well as in diffuse large B-cell lymphoma. Several reports also demonstrated the efficacy of rituximab for the treatment of autoimmune cytopenia, especially for cold agglutinin disease. We report the first case, to our knowledge, of rituximab-related autoimmune hemolytic anemia. The pathophysiological mechanisms remain unknown, although the drug could act through massive cytokines liberation after destruction of CD20 positive cells by rituximab.
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MESH Headings
- Anemia, Hemolytic, Autoimmune/chemically induced
- Anemia, Hemolytic, Autoimmune/etiology
- Antibodies, Monoclonal/adverse effects
- Antibodies, Monoclonal/therapeutic use
- Antibodies, Monoclonal, Murine-Derived
- Cell Transformation, Neoplastic
- Disease Progression
- Humans
- Immunoglobulin M
- Leukemia, Lymphocytic, Chronic, B-Cell/complications
- Leukemia, Lymphocytic, Chronic, B-Cell/drug therapy
- Lymphoproliferative Disorders/complications
- Lymphoproliferative Disorders/drug therapy
- Male
- Middle Aged
- Rituximab
- Splenomegaly
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Affiliation(s)
- E Jourdan
- Service de Médecine Interne B, Hôpital Caremeau, Av du Professeur Robert Debré, F-30900 Nîmes, France.
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18
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Jourdan E, Defez C, Topart D, Richard B, Bellabas H, Fabbro-Peray P, Jourdan J, Sotto A. Evaluation of imipenem 1.5 g daily in febrile patients with short duration neutropenia after chemotherapy for non-leukemic hematologic malignancies and solid tumors: personal experience and review of the literature. Leuk Lymphoma 2003; 44:619-26. [PMID: 12769338 DOI: 10.1080/1042819021000055309] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [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
Numerous studies have demonstrated efficacy of imipenem-cilastatin, 50 mg/kg/day, as first line therapy in febrile patients with neutropenia of short duration consecutive to cytostatic chemotherapy. However, only two studies used low dosage of this antibiotic as 1.5 g/day, in prospective, double blind, randomized clinical trials, in this indication. Efficacy and tolerability of imipenem-cilastatin 0.5 g three times daily IV in 30-min infusions, as first-line empiric therapy, were retrospectively evaluated in our hematological unit. From January 1996 to September 2000, 30 neutropenic patients (12 females) with 45 febrile episodes were included. Median age was 57.5 years (31-75). Twenty-four of them had lymphomas, 4 solid tumors and 2 myelomas. There were 13 clinically documented infections, (CD, 28.8%), 16 microbiologically documented infections, (MD, 35.6%) and 16 febrile episodes corresponding to fever of unknown origin, (FUO, 35.6%). The median neutrophils count on nadir (n = 44), was 67/mm3 (8-369). The median duration of neutropenia was 5 days (3-15). Bacteremia was observed in 10 patients, urinary tract infection in 3 patients. The most frequently isolated microorganism was Escherichia coli. The overall success rate of the first line therapy was 66.7%. Adverse events were observed in 11.1% of the patients without necessity to stop treatment. The MD infections showed a lower rate of success compared with CD infections and FUO. These data were in accordance with the previous studies. The importance of number of microorganisms (p = 0.007) and of infected sites (p = 0.01) appeared as prognostic factors (univariate analysis). Although imipenem-cilastatin has been used in numerous studies as empiric broad-spectrum antibiotic therapy in the treatment of febrile neutropenic cancer patients, the exact dosage of this antibiotic is still not standardized. However, utilization of this antibiotic in monotherapy at low dosage seems to us to be safe and effective as usual dosage in the antimicrobial treatment ofthe febrile patients with post chemotherapy neutropenia of short duration.
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Affiliation(s)
- E Jourdan
- Service de Médecine Interne B, Hôpital Carémeau, rue du Professeur-Debré, 30029 CHU Nîmes, France
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19
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Pulcini C, Roth S, Bernard E, Vandenbos E, Jourdan J, Dellamonica P. [Dissecting aortic aneurysm revealed by prolonged fever]. Presse Med 2002; 31:743. [PMID: 12148352] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/26/2023] Open
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20
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Meunier JP, Berkane N, Lopez S, El Ghobary T, Teboul J, Malzac B, Isetta C, Jourdan J. Traumatic aortic regurgitation: aortic valvuloplasty controlled by aortoscopy. J Heart Valve Dis 2001; 10:784-8. [PMID: 11767187] [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: 02/23/2023]
Abstract
Traumatic aortic insufficiency is a rare occurrence after blunt chest trauma, and requires surgical treatment. Aortic valve replacement has been proposed as the procedure of choice, but primary valve repair is being performed increasingly more often. In a plead for conservative surgery, we report a case of valvuloplasty that was controlled by intraoperative aortic endoscopy. When operative conditions permit aortic valve repair, this should be carried out in order to avoid aortic valve replacement and its potential complications, especially in young patients with healthy valves. Replacement is the safest treatment for complex or multiple injuries of the aortic valve, however.
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Affiliation(s)
- J P Meunier
- Department of Cardiac Surgery, Pasteur Hospital, University of Nice, France
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21
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Zhu H, Ahmidouch A, Anklin H, Arenhövel H, Armstrong C, Bernet C, Boeglin W, Breuer H, Brindza P, Brown D, Bültmann S, Carlini R, Chant N, Cowley A, Crabb D, Danagoulian S, Day DB, Eden T, Ent R, Farah Y, Fatemi R, Garrow K, Harris C, Hauger M, Honegger A, Jourdan J, Kaufmann M, Khandaker M, Kubon G, Lichtenstadt J, Lindgren R, Lourie R, Lung A, Mack D, Malik S, Markowitz P, McFarlane K, McKee P, McNulty D, Milanovich G, Mitchell J, Mkrtchyan H, Mühlbauer M, Petitjean T, Prok Y, Rohe D, Rollinde E, Rondon OA, Roos P, Sawafta R, Sick I, Smith C, Southern T, Steinacher M, Stepanyan S, Tadevosyan V, Tieulent R, Tobias A, Vulcan W, Warren G, Wöhrle H, Wood S, Yan C, Zeier M, Zhao J, Zihlmann B. Measurement of the electric form factor of the neutron through d-->(e-->,e(')n)p at Q2 = 0.5 (GeV/c)(2). Phys Rev Lett 2001; 87:081801. [PMID: 11497934 DOI: 10.1103/physrevlett.87.081801] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2001] [Indexed: 05/23/2023]
Abstract
We report the first measurement using a solid polarized target of the neutron electric form factor G(n)(E) via d-->(e-->,e(')n)p. G(n)(E) was determined from the beam-target asymmetry in the scattering of longitudinally polarized electrons from polarized deuterated ammonia ( 15ND3). The measurement was performed in Hall C at Thomas Jefferson National Accelerator Facility in quasifree kinematics with the target polarization perpendicular to the momentum transfer. The electrons were detected in a magnetic spectrometer in coincidence with neutrons in a large solid angle segmented detector. We find G(n)(E) = 0.04632+/-0.00616(stat)+/-0.00341(syst) at Q2 = 0.495 (GeV/c)(2).
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Affiliation(s)
- H Zhu
- Institute of Nuclear and Particle Physics, University of Virginia, Charlottesville, 22903, USA
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23
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Ducreux D, Chevallier P, Perrin C, Jourdan J, Hofman P, Raffaelli C, Padovani B. Pseudomembranous aspergillus bronchitis in a double-lung transplanted patient: unusual radiographic and CT features. Eur Radiol 2001; 10:1547-9. [PMID: 11044922 DOI: 10.1007/s003300000385] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [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: 11/24/2022]
Abstract
Pseudomembranous aspergillus bronchitis is considered as an early form of invasive pulmonary aspergillosis, a well-known airway infection in immunocompromised patients. Radiologic features concerning invasive aspergillosis of the airways have been reported. However, we describe here an unusual feature of invasive aspergillus bronchitis, never reported to date, observed in a double-lung transplanted patient. Chest radiograph and CT revealed significant peribronchial thickening without any parenchymal involvement.
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Affiliation(s)
- D Ducreux
- Department of Radiology, Hopital Pasteur, Nice, France
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24
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Sotto A, De Boever CM, Fabbro-Peray P, Gouby A, Sirot D, Jourdan J. Risk factors for antibiotic-resistant Escherichia coli isolated from hospitalized patients with urinary tract infections: a prospective study. J Clin Microbiol 2001; 39:438-44. [PMID: 11158087 PMCID: PMC87756 DOI: 10.1128/jcm.39.2.438-444.2001] [Citation(s) in RCA: 83] [Impact Index Per Article: 3.6] [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: 11/20/2022] Open
Abstract
From November 1998 to February 1999 we prospectively evaluated the prevalence of resistance to penicillins, cephalosporins, carbapenem, quinolones, aminoglycosides, and trimethoprim-sulfamethoxazole (SXT) in 320 Escherichia coli isolates isolated from hospitalized patients with acute urinary tract infections (UTIs). We also studied for these strains risk factors for resistance to amoxicillin-clavulanic acid (AMC), fluoroquinolones (FQs), and SXT. Resistance rates were consistent with those from major recent studies reported in the literature. Multivariate analyses selected the following factors as being significantly associated with E. coli resistance: (i) for resistance to AMC, prior (1 year) UTI (odds ratio [OR] = 2.71, P = 0.006), prior (1 year) urinary catheter (OR = 2.98, P = 0.0025), and prior (6 months) antibiotic exposure (OR = 2.68, P = 0.005); (ii) for resistance to FQs male sex (OR = 3.87, P = 0.03), with a trend toward significance for age >65 years (OR = 7.67, P = 0.06) and prior (1 year) UTI (OR = 2.98, P = 0.07); and (iii) for resistance to SXT, male sex (OR = 1.91, P = 0.046), hospitalization in an intermediate-term-care unit (OR = 2.18, P = 0.008), and prior (1 year) UTI (OR = 2.03, P = 0.03). Ours results suggest that prior UTI is a common risk factor for resistance to the different antibiotics tested. Although few studies on risk factors for E. coli resistance to antibiotics have been published, careful interpretation of their findings, taking into consideration the population, infection site, and period studied, should contribute to the formulation of a better strategy that can be used to overcome antibiotic resistance.
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Affiliation(s)
- A Sotto
- Laboratoire Universitaire de Thérapeutique, Service de Médecine Interne B, Hôpital Carémeau, Nîmes, France.
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Bernard ML, Peterson YK, Chung P, Jourdan J, Lanier SM. Selective interaction of AGS3 with G-proteins and the influence of AGS3 on the activation state of G-proteins. J Biol Chem 2001; 276:1585-93. [PMID: 11042168 DOI: 10.1074/jbc.m005291200] [Citation(s) in RCA: 121] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
AGS3 (activator of G-protein signaling 3) was isolated in a yeast-based functional screen for receptor-independent activators of heterotrimeric G-proteins. As an initial approach to define the role of AGS3 in mammalian signal processing, we defined the AGS3 subdomains involved in G-protein interaction, its selectivity for G-proteins, and its influence on the activation state of G-protein. Immunoblot analysis with AGS3 antisera indicated expression in rat brain, the neuronal-like cell lines PC12 and NG108-15, as well as the smooth muscle cell line DDT(1)-MF2. Immunofluorescence studies and confocal imaging indicated that AGS3 was predominantly cytoplasmic and enriched in microdomains of the cell. AGS3 coimmunoprecipitated with Galpha(i3) from cell and tissue lysates, indicating that a subpopulation of AGS3 and Galpha(i) exist as a complex in the cell. The coimmunoprecipitation of AGS3 and Galpha(i) was dependent upon the conformation of Galpha(i3) (GDP GTPgammaS (guanosine 5'-3-O-(thio)triphosphate)). The regions of AGS3 that bound Galpha(i) were localized to four amino acid repeats (G-protein regulatory motif (GPR)) in the carboxyl terminus (Pro(463)-Ser(650)), each of which were capable of binding Galpha(i). AGS3-GPR domains selectively interacted with Galpha(i) in tissue and cell lysates and with purified Galpha(i)/Galpha(t). Subsequent experiments with purified Galpha(i2) and Galpha(i3) indicated that the carboxyl-terminal region containing the four GPR motifs actually bound more than one Galpha(i) subunit at the same time. The AGS3-GPR domains effectively competed with Gbetagamma for binding to Galpha(t(GDP)) and blocked GTPgammaS binding to Galpha(i1). AGS3 and related proteins provide unexpected mechanisms for coordination of G-protein signaling pathways.
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Affiliation(s)
- M L Bernard
- Department of Pharmacology, Medical University of South Carolina, Charleston, South Carolina 29403, USA
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Vergne L, Peeters M, Mpoudi-Ngole E, Bourgeois A, Liegeois F, Toure-Kane C, Mboup S, Mulanga-Kabeya C, Saman E, Jourdan J, Reynes J, Delaporte E. Genetic diversity of protease and reverse transcriptase sequences in non-subtype-B human immunodeficiency virus type 1 strains: evidence of many minor drug resistance mutations in treatment-naive patients. J Clin Microbiol 2000; 38:3919-25. [PMID: 11060045 PMCID: PMC87518 DOI: 10.1128/jcm.38.11.3919-3925.2000] [Citation(s) in RCA: 154] [Impact Index Per Article: 6.4] [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: 11/20/2022] Open
Abstract
Most human immunodeficiency virus (HIV) drug susceptibility studies have involved subtype B strains. Little information on the impact of viral diversity on natural susceptibility to antiretroviral drugs has been reported. However, the prevalence of non-subtype-B (non-B) HIV type 1 (HIV-1) strains continues to increase in industrialized countries, and antiretroviral treatments have recently become available in certain developing countries where non-B subtypes predominate. We sequenced the protease and reverse transcriptase (RT) genes of 142 HIV-1 isolates from antiretroviral-naive patients: 4 belonged to group O and 138 belonged to group M (9 subtype A, 13 subtype B, 2 subtype C, 5 subtype D, 2 subtype F1, 9 subtype F2, 4 subtype G, 5 subtype J, 2 subtype K, 3 subtype CRF01-AE, 67 subtype CRF02-AG, and 17 unclassified isolates). No major mutations associated with resistance to nucleoside reverse transcriptase inhibitors (NRTIs) or protease inhibitors were detected. Major mutations linked to resistance to non-NRTI agents were detected in all group O isolates (A98G and Y181C) and in one subtype J virus (V108I). In contrast, many accessory mutations were found, especially in the protease gene. Only 5.6% of the 142 strains, all belonging to subtype B or D, had no mutations in the protease gene. Sixty percent had one mutation, 22.5% had two mutations, 9.8% had three mutations, and 2.1% (all group O strains) had four mutations. In order of decreasing frequency, the following mutations were identified in the protease gene: M36I (86.6%), L10I/V (26%), L63P (12.6%), K20M/R (11.2%), V77I (5.6%), A71V (2.8%), L33F (0.7%), and M46I (0.7%). R211K, an accessory mutation associated with NRTI resistance, was also observed in 43.6% of the samples. Phenotypic and clinical studies are now required to determine whether multidrug-resistant viruses emerge more rapidly during antiretroviral therapy when minor resistance-conferring mutations are present before treatment initiation.
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Affiliation(s)
- L Vergne
- Laboratoire Retrovirus, IRD, Montpellier, France
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Merle De Boever C, Sotto A, Guillot B, Jourdan J. [Carbamazepine intolerance mimicking infectious mononucleosis: apropos of 3 cases]. Therapie 2000; 54:489-91. [PMID: 10667117] [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: 02/15/2023]
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Isetta C, Garaffo R, Bastian G, Jourdan J, Baudouy M, Milano G. Life-threatening 5-fluorouracil-like cardiac toxicity after treatment with 5-fluorocytosine. Clin Pharmacol Ther 2000; 67:323-5. [PMID: 10741637 DOI: 10.1067/mcp.2000.104643] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- C Isetta
- Hôpital Pasteur and Centre Antoine-Lacassagne, Nice, France
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Sotto A, Assens C, Berard M, Jourdan J, Boffa MC. Plasma thrombomodulin level is correlated with those of the soluble interleukin-2 receptor and hepatic cytolysis markers in patients with Mediterranean spotted fever. Thromb Haemost 1999; 82:1769-70. [PMID: 10613670] [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: 02/15/2023]
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Sotto A, Foulongne V, Sirot D, Jourdan J. A method using TEM-5-beta-lactamase to assay imipenem. J Antimicrob Chemother 1999; 44:851-2. [PMID: 10590293 DOI: 10.1093/jac/44.6.851-a] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Camous JP, Raybaud F, Jourdan J. Pseudofracture of an ICD lead. Pacing Clin Electrophysiol 1999; 22:1704. [PMID: 10598979 DOI: 10.1111/j.1540-8159.1999.tb00395.x] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A proximal pseudofracture of a Medtronic 6936 defibrillating lead adjacent to the ICD pulse generator was found on X ray. At this site, the multifilar metallic connector joins the stimulating lead before coiling around it. Conventional X ray of the abdomen does not visualize this connection. During ICD replacement, lead impedance should be routinely measured.
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Affiliation(s)
- J P Camous
- Medical Department of Cardiology Faculty of Medecine, Nice, France
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Sotto A, Guillot B, Dandurand M, Jourdan J. Exacerbation of skin mycobacterial lesions under highly active antiretroviral therapy in an HIV-infected patient. AIDS 1999; 13:1790-1. [PMID: 10509588 DOI: 10.1097/00002030-199909100-00030] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Leprince P, Fretz C, Dorent R, Boudifa A, Jourdan J, Youssoub JJ, Bors V, Nataf P, Pavie A, Gandjbakhch I. Posttransplantation cytotoxic immunoglobulin G is associated with a high rate of acute allograft dysfunctions in heart transplant recipients. Am Heart J 1999; 138:586-92. [PMID: 10467212 DOI: 10.1016/s0002-8703(99)70164-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
BACKGROUND The significance of anti-human leukocyte antigen immunoglobin G (IgG) detected in the posttransplantation course of heart graft recipients remains unclear. METHOD Sera from 121 cardiac allograft recipients transplanted between January 1992 and December 1994 were screened for the presence of lymphocytotoxic antibodies in the first year after transplantation. Dithiothreitol was used to differentiate IgG from immunoglobulin M. RESULTS Nineteen patients (15%) had cytotoxic IgG develop, mainly during the first month after transplantation. The percentage of women was higher in this group (42% vs 15.7%; P <.05). Donor to recipient mismatches for sex, blood typing, cytomegalovirus serology, and human leukocyte antigen typing were comparable between IgG producers and nonproducers. The frequency of acute allograft dysfunction during the first year after transplantation was significantly higher among patients producing IgG (42% vs 5.9; P <.001). Most of these acute allograft dysfunctions were independent of cellular rejection lesions but were associated with a thickening of the posterior wall and the interventricular septum during the acute episode. Finally, all the patients but one recovered. Recurrences were not uncommon and, at 1 year after transplantation, the dose of cyclosporine used in patients producing IgG was significantly greater, as was the left ventricular thickness. CONCLUSION Posttransplantation cytotoxic IgG is not uncommon and appears to be associated with a high rate of acute allograft dysfunction. Development of these antibodies can be caused by a previous undetected immunization, as suggested by the higher percentage of women in the producer group. Correlation with histologic lesions of humoral rejection are discussed.
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Affiliation(s)
- P Leprince
- Department of Thoracic and Cardiovascular Surgery, La Pitié Hospital, Paris, France
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Eker A, Malzac B, Teboul J, Jourdan J. Mesenteric ischemia after coronary artery bypass grafting: should local continuous intra-arterial perfusion with papaverine be regarded as a treatment? Eur J Cardiothorac Surg 1999; 15:218-20. [PMID: 10219560 DOI: 10.1016/s1010-7940(98)00260-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.7] [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: 11/23/2022] Open
Abstract
Mesenteric ischemia after cardiac surgery is rare but dramatic. We present a patient who had acute mesenteric ischemia following low cardiac output after coronary artery bypass grafting. Our patient was successfully treated with continuous intra-arterial perfusion with papaverine. We think that selective angiography must be performed as early as mesenteric ischemia is suspected, to get earlier diagnosis and treatment of an ischemic patient.
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Affiliation(s)
- A Eker
- Service de Chirurgie Cardiaque, Hôpital Pasteur-Pavillon H 1, Nice, France
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Battaglione V, Piche M, Jourdan J, Mouroux J, Michiels JF, Isetta C, Hofman P. [Pulmonary lymphangioleiomyomatosis. Immunohistochemical and ultrastructural study of two cases]. Arch Anat Cytol Pathol 1998; 46:178-83. [PMID: 9754373] [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: 02/08/2023]
Abstract
The authors report two cases of pulmonary lymphangioleiomyomatosis which were diagnosed by surgical biopsies. Immunohistochemical study showed positive staining of the smooth muscle cells using antibodies directed against smooth muscle actin, specific muscle actin, HMB45 and vimentin. Ultrastructural study showed some smooth muscle differentiation features, with numerous myofilaments and some dense bodies near the plasma membrane. In one case, the patient was treated by a double-lung transplantation. LAM is a non-familial disease occurring exclusively in females. The etiology is unknown. This disease can be complicated by chronic respiratory failure. Extrapulmonary sites are not rare, particularly in the uterus. Anti-estrogen treatment can slow the course of the disease. Lung transplantation is actually the only effective treatment at the present time therapy. The differential diagnosis of this disease is discussed.
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Affiliation(s)
- V Battaglione
- Service d'Anatomie Pathologique, Hôpital Pasteur, Nice
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Merle C, Sotto A, Galland MC, Jourdan E, Jourdan J. [Persistent cerebellar syndrome after treatment with lithium and a neuroleptic]. Therapie 1998; 53:511-3. [PMID: 9921050] [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: 02/10/2023]
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Basset-Séguin N, Sotto A, Guillot B, Jourdan J, Guilhou JJ. Zinc status in HIV-infected patients: relation to the presence or absence of seborrheic dermatitis. J Am Acad Dermatol 1998; 38:276-8. [PMID: 9486690 DOI: 10.1016/s0190-9622(98)70250-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Joomaye Z, Sotto A, Barki J, Péguret C, Jourdan J. [Anicteric cholestasis during Steinert disease]. Rev Med Interne 1997; 18:735-6. [PMID: 9365730 DOI: 10.1016/s0248-8663(97)83759-9] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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Merle C, Sotto A, Ledésert B, Jourdan J. Mortalité par maladies infectieuses dans le Languedoc Roussillon : étude préliminaire concernant les périodes 1979–1981 et 1989–1991. Med Mal Infect 1997. [DOI: 10.1016/s0399-077x(97)80119-9] [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: 10/25/2022]
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Merle C, Sotto A, Assens A, Jourdan J. Désordres immunologiques non spécifiques au cours de la fièvre Q. Rev Med Interne 1997. [DOI: 10.1016/s0248-8663(97)80492-4] [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: 10/17/2022]
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Sotto A, Bessis D, Jourdan J. [Gloves and socks edema disclosing Parvovirus B19 infection]. Presse Med 1997; 26:421. [PMID: 9137404] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
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43
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Joomaye Z, Sotto A, Jourdan J. [Isolated prolonged cough caused by Horton's disease]. Rev Mal Respir 1997; 14:59-60. [PMID: 9082508] [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: 02/04/2023]
Abstract
Pulmonary involvement is very rare in giant cell arteritis. The sign that is most often encountered seems to be dry cough which can remain, for a long time, the sole manifestation of this disease. We report a case of giant cell arteritis in a 66 year old woman that expressed for only symptom a dry cough during one year. A rapid regression of clinical symptoms and radiologic signs have been observed with steroid therapy. Presence of isolated cough along with biological marks of inflammation in a elderly patient should lead to temporal biopsy when no other evidence cause has been found.
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Affiliation(s)
- Z Joomaye
- Service de Médecine Interne B, CHU Carémeau, Nîmes
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Sotto A, Brunschwig C, Ramuz M, Jourdan J. [Enzyme determination in vitro of inhibitor activity of beta-lactamase from tazobactam. Comparison with high performance liquid chromatography]. Pathol Biol (Paris) 1997; 45:77-81. [PMID: 9097851] [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: 02/04/2023]
Abstract
We developed an enzymatic method using nitrocefin to assay tazobactam in vitro. Tazobactam was incubated with TEM-1 beta-lactamase. Then, residual beta-lactamase activity was assayed by adding nitrocefin. This activity corresponded indirectly to the initial concentration of tazobactam. Within-assay, between-assay and accuracy coefficients of variation were below 15%. The correlation coefficients between enzymatic method and high performance liquid chromatography (the reference method)was 0.98. The enzymatic method is rapid, easy to perform and should be applied to daily clinical practice.
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Affiliation(s)
- A Sotto
- Laboratoire Universitaire de Thérapeutique, CHU Carémeau, Nimes, France
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Porneuf M, Duterque M, Sotto A, Jourdan J. Unusual erythema elevatum diutinum with fibrohistiocytic proliferation. Br J Dermatol 1996; 134:1131-4. [PMID: 8763440] [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: 02/02/2023]
Abstract
A 78-year-old woman with a history of symmetrical erythematous plaques on the arms, and a monoclonal gammopathy, developed a strange striped reticulate papular dermatosis with central atrophy. Histological examination was compatible with a very late stage of erythema elevatum diutinum (EED), showing a fibrohistiocytic proliferation with areas of granulation tissue. This fibrosis may result from the chronic dermal injury of leucocytoclastic vasculitis and is sometimes the predominant histology of EED. Investigations for underlying haematological anomalies, such as paraproteinaemia and infection with human immunodeficiency virus, must be performed. Dapsone is ineffective once the fibrous nodules have appeared.
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Affiliation(s)
- M Porneuf
- Department of Internal Medicine, University of Nimes, France
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Affiliation(s)
- M Porneuf
- Service de Médecine Interne B, Hôpital Carémeau, Nîmes, France
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Sotto A, Brunschwig C, O'Callaghan D, Ramuz M, Jourdan J. In-vitro evaluation of beta-lactamase inhibition by latamoxef and imipenem. J Antimicrob Chemother 1996; 37:697-701. [PMID: 8722535 DOI: 10.1093/jac/37.4.697] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
The in-vitro 50% inhibitory concentrations (IC50s) of latamoxef and imipenem against a set of plasmid-mediated beta-lactamases including TEM-1, TEM-3, TEM-5 and TEM-10 were determined by an enzymatic method using nitrocefin as substrate. The IC50s of both antibiotics against extended-spectrum beta-lactamases were below 0.2 mg/L. The conventional spectrum beta-lactamase TEM-1 was not inhibited by either antibiotic at the highest concentration tested. Except for TEM-10 for which the IC50s of the two antibiotics were the same, imipenem showed significantly greater activity than latamoxef against TEM-3 and TEM-5. Clavulanic acid taken as a control demonstrated greater and wider inhibitory activity, but on the other hand it has no significant antibiotic activity.
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Affiliation(s)
- A Sotto
- Laboratoire Universitaire de Thérapeutique, Service de Médecine B, Hopital Carémeau, Nimes, France
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Sotto A, Porneuf M, Jourdan J. [Encephalitis caused by ticks in Central Europe, an imported disease]. Presse Med 1996; 25:509-10. [PMID: 8685116] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
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Joomaye Z, Sotto A, Barki J, Péguret C, Jourdan J. Cholestase anictérique au cours d'une maladie de Steinert. Rev Med Interne 1996. [DOI: 10.1016/s0248-8663(97)81163-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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