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Boumghit Y, Boucher S, Godey B, Michel G, Bakhos D. Speech reception after cochlear implantation for Cogan's syndrome: Case series following CARE guidelines. Eur Ann Otorhinolaryngol Head Neck Dis 2023; 140:235-238. [PMID: 37479606 DOI: 10.1016/j.anorl.2023.06.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/23/2023]
Abstract
INTRODUCTION Cogan's syndrome is a rare form of vasculitis mainly affecting young subjects of whatever gender, associating cochleovestibular and ophthalmological damage. Despite medical treatment, auditory prognosis is uncertain, with 50-60% of patients showing irreversible severe to profound hearing loss, thus being candidates for cochlear implantation. Following CARE guidelines, we report 10 cases of cochlear implantation in Cogan's syndrome, with assessment of speech reception threshold and maximum intelligibility after a minimum 1 year's experience with the implant. CASE SERIES Ten patients from 4 centers received cochlear implants (14 implants) for Cogan's syndrome between 2005 and 2020. After 1 year's experience, there was significant improvement in speech reception threshold (P=0.0002) and maximum intelligibility (P=0.0002). CONCLUSION-DISCUSSION Audiovestibular signs associated with ophthalmological manifestations should suggest Cogan's syndrome. Hearing impairment is usually irreversible. Cochlear implantation may be necessary and improves hearing performance.
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Affiliation(s)
- Y Boumghit
- Service ORL et chirurgie cervico-faciale, CHRU de Tours, 2, boulevard Tonnellé, 37044 Tours, France.
| | - S Boucher
- Service ORL et chirurgie cervico-faciale, CHU d'Angers, 4, rue Larrey, 49000 Angers, France
| | - B Godey
- Service ORL et chirurgie cervico-faciale, CHU de Rennes, 2, rue Henri-le-Guilloux, 35000 Rennes, France
| | - G Michel
- Service ORL et chirurgie cervico-faciale, CHU de Nantes, 1, place Alexis-Ricordeau, 44093 Nantes, France
| | - D Bakhos
- Service ORL et chirurgie cervico-faciale, CHRU de Tours, 2, boulevard Tonnellé, 37044 Tours, France; Inserm U1253, iBrain, université de Tours, 10, boulevard Tonnellé, 37000 Tours, France; House Institute Foundation, Los Angeles, United States
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Normant S, Gendre A, Boucher S, Godey B, Bordure P, Michel G. Predictive factors of revision stapes surgery in otosclerosis. J Laryngol Otol 2023; 137:906-909. [PMID: 36511130 DOI: 10.1017/s0022215122002572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
OBJECTIVES This study aimed to investigate predictive factors for revision surgery in otosclerosis. METHODS This was a retrospective, multicentre study in four tertiary centres. The primary objective was to investigate factors that were predictive of the need for revision stapes surgery. RESULTS The 'revision' group included 145 patients, and the 'control' group included 143 patients. This study identified statistically significant predictive factors for the need for revision surgery: younger age, active smoking status, dyslipidaemia and high blood pressure. There was no statistically significant difference between the two groups in terms of surgical technique or stapedotomy technique. CONCLUSION This study showed that patients who are candidates for primary stapes surgery with younger age, active smoking status, dyslipidaemia and high blood pressure are at higher risk of needing revision surgery. A holistic approach prior to stapes surgery with multidisciplinary assessment is recommended. These results are important for better patient counselling on expected outcomes and risks.
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Affiliation(s)
- S Normant
- Department of Otorhinolaryngology, University Hospital of Nantes, France
| | - A Gendre
- Department of Otorhinolaryngology, University Hospital of Nantes, France
| | - S Boucher
- Department of Otorhinolaryngology, University Hospital of Angers, France
| | - B Godey
- Department of Otorhinolaryngology, University Hospital of Rennes, France
| | - P Bordure
- Department of Otorhinolaryngology, University Hospital of Nantes, France
| | - G Michel
- Department of Otorhinolaryngology, University Hospital of Nantes, France
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Liang M, Lin J, Siqueira I, Kohut SA, Stinson J, Gold A, Urschel S, Soto S, Seifert-Hansen M, McCoy M, Boucher S, Anthony S. "It Felt Really Nice to Have Someone Who Understands": The Experiences of Adolescent Thoracic Transplant Patients Participating in the iPeer2Peer Online Mentorship Program. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.175] [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: 04/05/2023] Open
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Mustapha B, Nassiri A, Nolen J, Noonan J, Kutsaev S, Boucher S, Agustsson R, Smirnov A. A COMPACT MULTI-ION LINAC WITH FLASH CAPABILITY. Phys Med 2022. [DOI: 10.1016/s1120-1797(22)01597-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Kutsaev SV, Agustsson R, Berry R, Boucher S, Bruhwiler D, Schulze K, Smirnov AY, Taletski K. Ir-192 radioisotope replacement with a hand-portable 1 MeV Ku-band electron linear accelerator. Appl Radiat Isot 2021; 179:110029. [PMID: 34814009 DOI: 10.1016/j.apradiso.2021.110029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 08/24/2021] [Accepted: 11/10/2021] [Indexed: 11/26/2022]
Abstract
Although linear accelerators are used in many security, industrial and medical applications, the existing technologies are too large and expensive for several critical applications such as radioactive source replacement, field radiography and mobile cargo scanners. One of the main requirements for these sources is to be highly portable to allow field operation. In response to this problem, RadiaBeam has designed a hand-portable 1 MeV X-ray source, scalable to higher energies, based on Ku-band split electron linac, that can be used for Ir-192 radioisotope replacement. In this paper, we present its multiphysics and engineering design studies, as well as an accelerating structure prototype along with RF measurements.
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Affiliation(s)
- S V Kutsaev
- RadiaBeam Technologies, LLC, Santa Monica, CA, 90404, USA.
| | - R Agustsson
- RadiaBeam Technologies, LLC, Santa Monica, CA, 90404, USA
| | - R Berry
- RadiaBeam Technologies, LLC, Santa Monica, CA, 90404, USA
| | - S Boucher
- RadiaBeam Technologies, LLC, Santa Monica, CA, 90404, USA
| | | | - K Schulze
- RadiaBeam Technologies, LLC, Santa Monica, CA, 90404, USA
| | - A Yu Smirnov
- RadiaBeam Technologies, LLC, Santa Monica, CA, 90404, USA
| | - K Taletski
- RadiaBeam Technologies, LLC, Santa Monica, CA, 90404, USA
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Kutsaev S, Agustsson R, Arodzero A, Berry R, Bezhanov A, Boucher S, Chimalpopoca O, Diego A, Faillace L, Gavryushkin D, Harrison M, Hartzell J, McNevin J, Ruelas M, Yu. Smirnov A, Verma A, Woods K. Compact X-Band Electron Linac for Radiotherapy and Security Applications. Radiat Phys Chem Oxf Engl 1993 2021; 185:109494. [PMID: 33935382 PMCID: PMC8081273 DOI: 10.1016/j.radphyschem.2021.109494] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
RadiaBeam has developed a 6 MeV accelerator that is compact and light enough to be placed on a robotic arm or light truck. The main drivers of size and weight in conventional accelerators are the power source and the shielding. Small dimensions are enabled by operation at 9.3 GHz frequency (X-band), which allows reducing the size and weight of all accelerator components. Thanks to the robust design of the accelerating structure, the accelerator can be used as a source for novel cargo inspection and radiotherapy techniques. In this paper, we present the linac design and its components, as well the results of the experimental demonstration of beam acceleration.
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Affiliation(s)
- S.V. Kutsaev
- RadiaBeam Technologies LLC, 1717 Stewart St, Santa Monica, CA 90404, U.S.A
| | - R. Agustsson
- RadiaBeam Technologies LLC, 1717 Stewart St, Santa Monica, CA 90404, U.S.A
| | - A. Arodzero
- RadiaBeam Technologies LLC, 1717 Stewart St, Santa Monica, CA 90404, U.S.A
| | - R. Berry
- RadiaBeam Technologies LLC, 1717 Stewart St, Santa Monica, CA 90404, U.S.A
| | - A. Bezhanov
- RadiaBeam Technologies LLC, 1717 Stewart St, Santa Monica, CA 90404, U.S.A
| | - S. Boucher
- RadiaBeam Technologies LLC, 1717 Stewart St, Santa Monica, CA 90404, U.S.A
| | - O. Chimalpopoca
- RadiaBeam Technologies LLC, 1717 Stewart St, Santa Monica, CA 90404, U.S.A
| | - A. Diego
- RadiaBeam Technologies LLC, 1717 Stewart St, Santa Monica, CA 90404, U.S.A
| | - L. Faillace
- RadiaBeam Technologies LLC, 1717 Stewart St, Santa Monica, CA 90404, U.S.A
| | - D. Gavryushkin
- RadiaBeam Technologies LLC, 1717 Stewart St, Santa Monica, CA 90404, U.S.A
| | - M. Harrison
- RadiaBeam Technologies LLC, 1717 Stewart St, Santa Monica, CA 90404, U.S.A
| | - J.J. Hartzell
- RadiaBeam Technologies LLC, 1717 Stewart St, Santa Monica, CA 90404, U.S.A
| | - J. McNevin
- RadiaBeam Technologies LLC, 1717 Stewart St, Santa Monica, CA 90404, U.S.A
| | - M. Ruelas
- RadiaBeam Technologies LLC, 1717 Stewart St, Santa Monica, CA 90404, U.S.A
| | - A. Yu. Smirnov
- RadiaBeam Technologies LLC, 1717 Stewart St, Santa Monica, CA 90404, U.S.A
| | - A. Verma
- RadiaBeam Technologies LLC, 1717 Stewart St, Santa Monica, CA 90404, U.S.A
| | - K. Woods
- Department of Radiation Oncology, University of California, Los Angeles, CA 90095, U.S.A
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Blay JY, Boucher S, Le Vu B, Cropet C, Chabaud S, Perol D, Barranger E, Campone M, Conroy T, Coutant C, De Crevoisier R, Debreuve-Theresette A, Delord JP, Fumoleau P, Gentil J, Gomez F, Guerin O, Jaffré A, Lartigau E, Lemoine C, Mahe MA, Mahon FX, Mathieu-Daude H, Merrouche Y, Penault-Llorca F, Pivot X, Soria JC, Thomas G, Vera P, Vermeulin T, Viens P, Ychou M, Beaupere S. Delayed care for patients with newly diagnosed cancer due to COVID-19 and estimated impact on cancer mortality in France. ESMO Open 2021; 6:100134. [PMID: 33984676 PMCID: PMC8134718 DOI: 10.1016/j.esmoop.2021.100134] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 04/01/2021] [Accepted: 04/02/2021] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND The impact of the first coronavirus disease 2019 (COVID-19) wave on cancer patient management was measured within the nationwide network of the Unicancer comprehensive cancer centers in France. PATIENTS AND METHODS The number of patients diagnosed and treated within 17 of the 18 Unicancer centers was collected in 2020 and compared with that during the same periods between 2016 and 2019. Unicancer centers treat close to 20% of cancer patients in France yearly. The reduction in the number of patients attending the Unicancer centers was analyzed per regions and cancer types. The impact of delayed care on cancer-related deaths was calculated based on different hypotheses. RESULTS A 6.8% decrease in patients managed within Unicancer in the first 7 months of 2020 versus 2019 was observed. This reduction reached 21% during April and May, and was not compensated in June and July, nor later until November 2020. This reduction was observed only for newly diagnosed patients, while the clinical activity for previously diagnosed patients increased by 4% similar to previous years. The reduction was more pronounced in women, in breast and prostate cancers, and for patients without metastasis. Using an estimated hazard ratio of 1.06 per month of delay in diagnosis and treatment of new patients, we calculated that the delays observed in the 5-month period from March to July 2020 may result in an excess mortality due to cancer of 1000-6000 patients in coming years. CONCLUSIONS In this study, the delays in cancer patient management were observed only for newly diagnosed patients, more frequently in women, for breast cancer, prostate cancer, and nonmetastatic cancers. These delays may result is an excess risk of cancer-related deaths in the coming years.
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Affiliation(s)
- J Y Blay
- Centre Leon Berard, Lyon, France.
| | | | | | - C Cropet
- Centre Leon Berard, Lyon, France
| | | | - D Perol
- Centre Leon Berard, Lyon, France
| | | | - M Campone
- Institut de Cancerologie de l'Ouest, Nantes et Angers, France
| | - T Conroy
- Institut de Cancerologie de Lorraine, Nancy, France
| | - C Coutant
- Centre George Francoise Leclerc, Dijon, France
| | | | | | - J P Delord
- Institut Claudius Regaud, IUCT-Oncopole, Toulouse, France
| | | | - J Gentil
- Centre George Francoise Leclerc, Dijon, France
| | - F Gomez
- Centre Leon Berard, Lyon, France
| | - O Guerin
- Institut de Cancerologie de l'Ouest, Nantes et Angers, France
| | | | | | - C Lemoine
- Institut Paoli-Calmettes, Marseille, France
| | - M A Mahe
- Centre François Baclesse, Caen, France
| | | | - H Mathieu-Daude
- Institut de Cancerologie de Montpellier, Montpellier, France
| | | | | | - X Pivot
- Centre Paul Strauss/ICANS, Strasbourg, France
| | | | - G Thomas
- Centre François Baclesse, Caen, France
| | - P Vera
- Centre Henri Becquerel, Rouen, France
| | | | - P Viens
- Institut Paoli-Calmettes, Marseille, France
| | - M Ychou
- Institut de Cancerologie de Montpellier, Montpellier, France
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Kutsaev S, Agustsson R, Arodzero A, Berry R, Boucher S, Diego A, Gavryushkin D, Hartzell J, Lanza R, Smirnov A, Verma A, Ziskin V. Linear accelerator for security, industrial and medical applications with rapid beam parameter variation. Radiat Phys Chem Oxf Engl 1993 2021. [DOI: 10.1016/j.radphyschem.2021.109398] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Boucher S, Duval G, Annweiler C. Good Hearing for Ensuring Healthy Aging. J Frailty Aging 2021; 11:125-126. [DOI: 10.14283/jfa.2021.19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
«Healthy aging», defined by the World Health Organization (WHO) as « the process of developing and maintaining the functional ability that enables well-being » (1), needs the involvement of various physicians. The WHO-ICOPE (Integrated Care for Older People) approach was developed to early identify, diagnose and treat older adults’ frailties defined as impairments of at least one of the six intrinsic capacities (i.e., hearing, vision, mood, cognition, mobility and nutrition), which could precipitate functional loss and alter the quality of life (2). Among these intrinsic abilities, hearing is the sense of communication and socialization, and may influence the quality and accuracy of the medical examination and interview. Hearing impairment usually develop insidiously and is unrecognized or insufficiently self-reported by older patients. However, by 2050, the number of people with hearing loss will increase to over 900 million worldwide, mainly due to aging population.
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Abstract
OBJECTIVES To identify contributive criteria in decision-making for intubation in acute epiglottitis, based on clinical and endoscopic data in adult patients, and to study clinical and biological characteristics and management. MATERIALS AND METHODS Diagnosis was established by flexible endoscopy showing epiglottic edema in association with general signs of sepsis in 28 patients consulting into two French hospitals between 2005 and 2016. Retrospective univariate and multivariate analysis between patients managed by intubation (Group I) or surveillance (Group S) was performed on clinical and endoscopic data. RESULTS Ten patients were intubated (36%). On univariate analysis, 4 variables were suggestively associated with intubation. On multivariate analysis, associations remained suggestive for dyspnea (OR=50.6; 95% CI=[2.7; 940.1]) and supraglottic edema extension (OR=42.2; 95% CI=[2.2; 799.5]). The area under the curve identifying intubated patients on these 2 criteria was 90.8%, testifying to high discrimination. CONCLUSION Intubation must always be considered in epiglottitis. Dyspnea and supraglottic extension of the edema seem to be the two main criteria to be considered in airway control decision-making.
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Affiliation(s)
- P M Pineau
- Service d'ORL et Chirurgie Cervico-Faciale, Centre Hospitalier Universitaire d'Angers, 4, Rue Larrey, 49100 Angers, France.
| | - J Gautier
- Pôle "Neurosciences, Vieillissement, Médecine et Société", Centre de Recherche sur l'Autonomie et la Longévité (CeRAL), Service de Gériatrie, Centre Hospitalier Universitaire d'Angers, 4 Rue Larrey, 49100 Angers, France
| | - A Pineau
- Service d'ORL et Chirurgie Cervico-Faciale, Centre Hospitalier du Mans, 194 Avenue Rubillard, 72037 Le Mans, France
| | - N Emam
- Service d'ORL et Chirurgie Cervico-Faciale, Centre Hospitalier du Mans, 194 Avenue Rubillard, 72037 Le Mans, France
| | - L Laccourreye
- Service d'ORL et Chirurgie Cervico-Faciale, Centre Hospitalier Universitaire d'Angers, 4, Rue Larrey, 49100 Angers, France
| | - S Boucher
- Service d'ORL et Chirurgie Cervico-Faciale, Centre Hospitalier Universitaire d'Angers, 4, Rue Larrey, 49100 Angers, France; Équipe MitoLab, UMR CNRS 6015, U1083 INSERM, Institut MitoVasc, SFR ICAT, Université d'Angers, Centre Hospitalier Universitaire d'Angers, Bâtiment IRIS/IBS, Rue des Capucins, 49933 Angers cedex 9, France
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Lyu Q, Neph R, Yu V, Ruan D, Boucher S, Sheng K. Non-Coplanar Many-Isocenter Optimization for Radiotherapy on Robotic Arm Platform. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.2374] [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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Boucher S, Nowak C, Garandeau C, Riche A, Baudin I, Grosset M. Réévaluation des antibiotiques à 7 jours et impact sur leur consommation. Med Mal Infect 2020. [DOI: 10.1016/j.medmal.2020.06.087] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Roux-Vaillard S, Pineau A, Laccourreye L, Boucher S. Immediate activation after cochlear implantation: Preliminary Study. Eur Ann Otorhinolaryngol Head Neck Dis 2020; 137:17-20. [DOI: 10.1016/j.anorl.2019.09.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Gurreri S, Thériault J, Boucher S. L’indépendance émotionnelle à la mère et au père en lien avec la détresse psychologique chez les jeunes femmes. Psychologie Française 2019. [DOI: 10.1016/j.psfr.2018.01.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Le Minor O, Boucher S, Joudou L, Mellet R, Sourice M, Le Moullec T, Nicolier A, Beilvert F, Sigognault-Flochlay A. Rabbit haemorrhagic disease: experimental study of a recent highly pathogenic GI.2/RHDV2/b strain and evaluation of vaccine efficacy. World Rabbit Sci 2019. [DOI: 10.4995/wrs.2019.11082] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
In 2010, a variant of the rabbit haemorrhagic disease virus (RHDV) belonging to a new GI.2 genotype was identified in France and rapidly spread worldwide. Due to antigenic difference, new vaccines including G1.2 strains have been developed to confer adequate protection. An increase in the pathogenicity of the circulating strains was recently reported. The objective of this experimental study was to characterise the infection with a highly pathogenic GI.2/RHDV2/b isolate (2017) and assess the efficacy of Filavac VHD K C+V vaccine (Filavie) against this strain. Four and 10-wk-old specific pathogen-free rabbits were inoculated with a recommended dose of vaccine. After 7 d, controls and vaccinated rabbits were challenged and clinically monitored for 14 d. All animals were necropsied and blood, organs and urine were sampled for quantitative reverse transcription polymerase chain reaction (RT-qPCR) analysis. In adult groups, regular nasal and rectal swabbing were performed, and faeces were collected after death to monitor RNA shedding. In control groups, the challenge strain induced acute RHD between 31 and 72 h post-inoculation, with a mortality rate of 100% for kits and 89% for adult rabbits. Except for a shorter mean time to death in kits, similar clinical signs and lesions were observed between age groups. The vaccination significantly prevented all mortality, clinical signs, detection of viral RNA in serum and gross lesions in kits and adult rabbits. In adult groups, we also demonstrated that vaccine significantly protected from detectable RNA shedding via naso-conjunctival and rectal routes. Two weeks after challenge, RNA copies were not detected by PCR in the liver, spleen, lungs, kidneys, faeces and urine of vaccinated adult rabbits. The findings for kits were similar, except that very low levels of RNA were present in the liver and spleen of a few rabbits. These data show that immunisation prevented any significant viral multiplication and/or allowed a rapid clearance. We concluded that, despite the quick evolution of GI.2/RHDV2/b strains, the protection conferred by the vaccine remains adequate. In the context of coexistence of both GI.1 and GI.2 genotypes in some countries, with the circulation of multiples recombinant viruses, the vaccination should be based on the association of strains from both genotypes.
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Rouffet A, Marie D, Boucher S, Deranque C, Martin L, Rousseau P. Prise en charge des lésions cutanées de pseudoxanthome élastique en chirurgie plastique. Ann Dermatol Venereol 2018. [DOI: 10.1016/j.annder.2018.09.540] [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: 10/27/2022]
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Taleb A, Rodier Bonifas C, Boucher S, Kocaba V, Mege Chevallier F, Burillon C. Mucolipidose de type IV et atteinte cornéenne : à propos d’un cas pédiatrique. J Fr Ophtalmol 2018; 41:e121-e122. [DOI: 10.1016/j.jfo.2017.11.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Accepted: 11/02/2017] [Indexed: 11/16/2022]
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Downing J, Kiman R, Boucher S, Nkosi B, Steel B, Marston C, Lascar E, Marston J. Children's palliative care now! Highlights from the second ICPCN conference on children's palliative care, 18-21 May 2016, Buenos Aires, Argentina. Ecancermedicalscience 2016; 10:667. [PMID: 27610193 PMCID: PMC5014554 DOI: 10.3332/ecancer.2016.667] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Indexed: 01/15/2023] Open
Abstract
The International Children's Palliative Care Network held its second international conference on children's palliative care in Buenos Aires, Argentina, from the 18th-21st May 2016. The theme of the conference was 'Children's Palliative Care…. Now!' emphasising the need for palliative care for children now, as the future will be too late for many of them. Six pre-conference workshops were held, addressing issues connected to pain assessment and management, adolescent palliative care, ethics and decision-making, developing programmes, the basics of children's palliative care, and hidden aspects of children's palliative care. The conference brought together 410 participants from 40 countries. Plenary, concurrent, and poster presentations covered issues around the status of children's palliative care, genetics, perinatal and neonatal palliative care, the impact of children's palliative care and the experiences of parents and volunteers, palliative care as a human right, education in children's palliative care, managing complex pain in children, spiritual care and when to initiate palliative care. The 'Big Debate' explored issues around decision-making and end of life care in children, and gave participants the opportunity to explore a sensitive and thought provoking topic. At the end of the conference, delegates were urged to sign the Commitment of Buenos Aires which called for governments to implement the WHA resolution and ensure access to palliative care for neonates, children and their families, and also commits us as palliative care providers to share all that we can and collaborate with each other to achieve the global vision of palliative care for all children who need it. The conference highlighted the ongoing issues in children's palliative care and participants were continually challenged to ensure that children can access palliative care NOW.
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Affiliation(s)
- J Downing
- International Children's Palliative Care Network, New Bond House, Bond Street, Bristol, UK; Palliative Care, Makerere University, PO Box 7072, Kampala, Uganda
| | - R Kiman
- Paediatric Palliative Care, Hospital Nacional Prof A Posadas, Av Pres Arturo U Illia, Villa Sarmiento, Buenos Aires, Argentina
| | - S Boucher
- International Children's Palliative Care Network, Cluster Box 3050, Assagay, 3624, South Africa
| | - B Nkosi
- International Children's Palliative Care Network, Cluster Box 3050, Assagay, 3624, South Africa
| | - B Steel
- International Children's Palliative Care Network, Cluster Box 3050, Assagay, 3624, South Africa
| | - C Marston
- International Children's Palliative Care Network, Cluster Box 3050, Assagay, 3624, South Africa
| | - E Lascar
- Hospital de Niños Dr Ricardo Gutiérrez, C1425EFD Autonomous City of Buenos Aires, Argentina
| | - J Marston
- International Children's Palliative Care Network, Cluster Box 3050, Assagay, 3624, South Africa
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Woods K, Harrison M, Boucher S, McNevin J, Kutsaev S, Faillace L, Sheng K. TH-EF-BRB-07: Novel Hardware and Software Platform for Intermediate Energy 4π Radiotherapy. Med Phys 2016. [DOI: 10.1118/1.4958253] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Casaubon LK, Boulanger JM, Glasser E, Blacquiere D, Boucher S, Brown K, Goddard T, Gordon J, Horton M, Lalonde J, LaRivière C, Lavoie P, Leslie P, McNeill J, Menon BK, Moses B, Penn M, Perry J, Snieder E, Tymianski D, Foley N, Smith EE, Gubitz G, Hill MD, Lindsay P. Canadian Stroke Best Practice Recommendations: Acute Inpatient Stroke Care Guidelines, Update 2015. Int J Stroke 2016; 11:239-52. [DOI: 10.1177/1747493015622461] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Leanne K Casaubon
- University Health Network, Toronto, Ontario, Canada
- University of Toronto, Toronto, Ontario, Canada
| | | | - Ev Glasser
- Heart and Stroke Foundation, Ontario, Canada
| | | | - Scott Boucher
- Regina Qu’Appelle Health Region, Saskatchewan, Canada
| | | | - Tom Goddard
- Dalhousie University, Nova Scotia, Canada
- Annapolis Valley Health Region, Nova Scotia, Canada
| | | | | | | | | | | | - Paul Leslie
- British Columbia Emergency Health Services, Vancouver, Canada
| | | | - Bijoy K Menon
- Calgary Stroke Program, Hotchkiss Brain Institute, Alberta, Canada
| | - Brian Moses
- Southwest Health Region, Nova Scotia, Canada
| | - Melanie Penn
- Victoria General Hospital, Island Health Authority, British Columbia, Canada
| | - Jeff Perry
- Ottawa Hospital Research Institute, Ontario, Canada
- Ottawa Hospital, Ontario, Canada
| | | | - Dawn Tymianski
- University Health Network, Toronto, Ontario, Canada
- University of Toronto, Toronto, Ontario, Canada
| | | | - Eric E Smith
- Calgary Stroke Program, Hotchkiss Brain Institute, Alberta, Canada
| | - Gord Gubitz
- Halifax Infirmary, Nova Scotia, Canada
- Dalhousie University, Nova Scotia, Canada
| | - Michael D Hill
- Calgary Stroke Program, Hotchkiss Brain Institute, Alberta, Canada
| | - Patrice Lindsay
- University of Toronto, Toronto, Ontario, Canada
- Heart and Stroke Foundation, Ontario, Canada
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Casaubon LK, Boulanger JM, Blacquiere D, Boucher S, Brown K, Goddard T, Gordon J, Horton M, Lalonde J, LaRivière C, Lavoie P, Leslie P, McNeill J, Menon BK, Moses B, Penn M, Perry J, Snieder E, Tymianski D, Foley N, Smith EE, Gubitz G, Hill MD, Glasser E, Lindsay P. Canadian Stroke Best Practice Recommendations: Hyperacute Stroke Care Guidelines, Update 2015. Int J Stroke 2015; 10:924-40. [DOI: 10.1111/ijs.12551] [Citation(s) in RCA: 152] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2015] [Accepted: 05/19/2015] [Indexed: 11/28/2022]
Abstract
The 2015 update of the Canadian Stroke Best Practice Recommendations Hyperacute Stroke Care guideline highlights key elements involved in the initial assessment, stabilization, and treatment of patients with transient ischemic attack (TIA), ischemic stroke, intracerebral hemorrhage, subarachnoid hemorrhage, and acute venous sinus thrombosis. The most notable change in this 5th edition is the addition of new recommendations for the use of endovascular therapy for patients with acute ischemic stroke and proximal intracranial arterial occlusion. This includes an overview of the infrastructure and resources required for stroke centers that will provide endovascular therapy as well as regional structures needed to ensure that all patients with acute ischemic stroke that are eligible for endovascular therapy will be able to access this newly approved therapy; recommendations for hyperacute brain and enhanced vascular imaging using computed tomography angiography and computed tomography perfusion; patient selection criteria based on the five trials of endovascular therapy published in early 2015, and performance metric targets for important time-points involved in endovascular therapy, including computed tomography-to-groin puncture and computed tomography-to-reperfusion times. Other updates in this guideline include recommendations for improved time efficiencies for all aspects of hyperacute stroke care with a movement toward a new median target door-to-needle time of 30 min, with the 90th percentile being 60 min. A stronger emphasis is placed on increasing public awareness of stroke with the recent launch of the Heart and Stroke Foundation of Canada FAST signs of stroke campaign; reinforcing the public need to seek immediate medical attention by calling 911; further engagement of paramedics in the prehospital phase with prehospital notification to the receiving emergency department, as well as the stroke team, including neuroradiology; updates to the triage and same-day assessment of patients with transient ischemic attack; updates to blood pressure recommendations for the hyperacute phase of care for ischemic stroke, intracerebral hemorrhage, and subarachnoid hemorrhage. The goal of these recommendations and supporting materials is to improve efficiencies and minimize the absolute time lapse between stroke symptom onset and reperfusion therapy, which in turn leads to better outcomes and potentially shorter recovery times.
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Affiliation(s)
- Leanne K. Casaubon
- Neurosciences, University Health Network, Toronto, ON, Canada
- IHPME, University of Toronto, Toronto, ON, Canada
| | - Jean-Martin Boulanger
- Research Center, Charles-LeMoyne Hospital, Greenfield Park, QC, Canada
- Neurology, Sherbrooke University, Montreal, QC, Canada
| | | | - Scott Boucher
- Stroke Neurology, Regina Qu'Appelle Health Region, Regina, SK, Canada
| | - Kyla Brown
- Stroke, Halifax Infirmary, Halifax, NS, Canada
| | - Tom Goddard
- Emergency Medicine, Dalhousie University, Annapolis, NS, Canada
- Emergency Medicine, Annapolis Valley Health Region, Annapolis, NS, Canada
| | | | - Myles Horton
- Neurology, Fraser Health Region, Fraser, BC, Canada
| | | | | | | | - Paul Leslie
- British Columbia Emergency Health Services, Vancouver, BC, Canada
| | | | - Bijoy K. Menon
- Calgary Stroke Program, Hotchkiss Brain Institute, Calgary, AB, Canada
| | - Brian Moses
- Medicine, Southwest Health Region, Halifax, NS, Canada
| | - Melanie Penn
- Victoria General Hospital, Island Health Authority, Victoria, BC, Canada
| | - Jeff Perry
- Ottawa Hospital Research Institute, Ottawa, ON, Canada
- Stroke, Ottawa Hospital, Ottawa, ON, Canada
| | | | - Dawn Tymianski
- Neurosciences, University Health Network, Toronto, ON, Canada
- IHPME, University of Toronto, Toronto, ON, Canada
| | | | - Eric E. Smith
- Calgary Stroke Program, Hotchkiss Brain Institute, Calgary, AB, Canada
| | - Gord Gubitz
- Stroke, Halifax Infirmary, Halifax, NS, Canada
- Emergency Medicine, Dalhousie University, Annapolis, NS, Canada
| | - Michael D. Hill
- Calgary Stroke Program, Hotchkiss Brain Institute, Calgary, AB, Canada
| | - Ev Glasser
- Stroke, Heart and Stroke Foundation, Calgary, AB, Canada
| | - Patrice Lindsay
- IHPME, University of Toronto, Toronto, ON, Canada
- Stroke, Heart and Stroke Foundation, Calgary, AB, Canada
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Nguyen D, Ruan D, O'Connor D, Low D, Boucher S, Sheng K. SU-F-BRB-12: A Novel Haar Wavelet Based Approach to Deliver Non-Coplanar Intensity Modulated Radiotherapy Using Sparse Orthogonal Collimators. Med Phys 2015. [DOI: 10.1118/1.4925207] [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: 11/07/2022] Open
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Boucher S, Breheret R, Laccourreye L. Importance of malnutrition and associated diseases in the management of Zenker's diverticulum. Eur Ann Otorhinolaryngol Head Neck Dis 2015; 132:125-8. [PMID: 25680881 DOI: 10.1016/j.anorl.2015.01.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVES To study the impact of malnutrition on a population treated for Zenker's diverticulum and to look for the causes of persistence or recurrence of dysphagia after endoscopic surgery. MATERIAL AND METHODS This retrospective study included 30 patients with Zenker's diverticulum treated by endoscopy. All swallowing disorders and manifestations of malnutrition and postoperative improvement in and/or recurrence of symptoms were noted. RESULTS Nutritional status was evaluated for 26 patients. Before surgery, 54% suffered from malnutrition, which was severe in 31%; 28.6% of the cases with malnutrition showed postoperative complications, versus 8.3% of cases without baseline malnutrition. Ninety percent of patients (n=27) declared complete resolution of symptoms. Nine patients presented recurrence of dysphagia, including 6 with recurrence of Zenker's diverticulum and 3 with, respectively, inclusion body myopathy, esophageal hypertonia and central disease. CONCLUSION Malnutrition should be quantified and treated before and after surgery for Zenker's diverticulum to prevent complications and decrease mortality. Associated pathologies should be systematically screened for, especially in case of recurrence of swallowing disorder without recurrence of Zenker's diverticulum.
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Affiliation(s)
- S Boucher
- Service d'Oto-Rhino-Laryngologie et Chirurgie Cervico-Faciale, CHU d'Angers, 4, rue Larrey, 49100 Angers, France.
| | - R Breheret
- Service d'Oto-Rhino-Laryngologie et Chirurgie Cervico-Faciale, CHU d'Angers, 4, rue Larrey, 49100 Angers, France
| | - L Laccourreye
- Service d'Oto-Rhino-Laryngologie et Chirurgie Cervico-Faciale, CHU d'Angers, 4, rue Larrey, 49100 Angers, France
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Le Vu B, Boucher S. Curiethérapie en France : état des lieux et perspectives économiques après l’arrêt de la commercialisation des fils d’iridium. Cancer Radiother 2014; 18:458-60. [DOI: 10.1016/j.canrad.2014.08.003] [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] [Received: 07/24/2014] [Revised: 08/03/2014] [Accepted: 08/04/2014] [Indexed: 11/29/2022]
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Riis S, Newman R, Kuninger D, Boucher S, Vermuri M, Zachar V, Fink T. Investigation of ASC-mediated wound healing in in vitro skin injury models. Cytotherapy 2014. [DOI: 10.1016/j.jcyt.2014.01.344] [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: 11/26/2022]
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Downing J, Marston J, Muckaden M, Boucher S, Cardoz M, Nkosi B, Steel B, Talawadekar P, Tilve P. Transforming children's palliative care-from ideas to action: highlights from the first ICPCN conference on children's palliative care. Ecancermedicalscience 2014; 8:415. [PMID: 24761156 PMCID: PMC3971869 DOI: 10.3332/ecancer.2014.415] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2014] [Indexed: 11/21/2022] Open
Abstract
The International Children’s Palliative Care Network (ICPCN) held its first international conference on children’s palliative care, in conjunction with Tata Memorial Centre, in Mumbai, India, from 10–12 February 2014. The theme of the conference, Transforming children’s palliative care—from ideas to action, reflected the vision of the ICPCN to live in a world where every child who needs it, can access palliative care, regardless of where they live. Key to this is action, to develop service provision and advocate for children’s palliative care. Three pre-conference workshops were held on 9 February, aimed at doctors, nurses, social workers, and volunteers, and focused around the principles of children’s palliative care, and in particular pain and symptom management. The conference brought together 235 participants representing 38 countries. Key themes identified throughout the conference included: the need for advocacy and leadership; for education and research, with great strides having been taken in the development of an evidence base for children’s palliative care, along with the provision of education; the importance of communication and attention to spirituality in children, and issues around clinical care, in particular for neonates. Delegates were continually challenged to transform children’s palliative care in their parts of the world and the conference culminated in the signing of the ICPCN Mumbai Declaration. The Declaration calls upon governments around the world to improve access to quality children’s palliative care services and made a call on the Belgian government not to pass a bill allowing children to be euthanised in that country. The conference highlighted many of the ongoing developments in children’s palliative care around the world, and as she closed the conference, Joan Marston (ICPCN CEO) challenged participants to take positive action and be the champions that the children need, thus transforming children’s palliative care.
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Affiliation(s)
- J Downing
- International Children's Palliative Care Network and Makerere University, PO Box 72518, Kampala, Uganda
| | - J Marston
- ICPCN, Bleomfontein 9301, South Africa
| | - Ma Muckaden
- Department of Palliative Medicine, Tata Memorial Centre, Mumbai, Maharashta 400012, India
| | | | - M Cardoz
- Children's Palliative Care Project, Indian Association of Palliative Care, Mumbai, Maharashta 400012, India
| | - B Nkosi
- ICPCN, Johannesburg 2000, South Africa
| | - B Steel
- ICPCN, Durban 4000, South Africa
| | - P Talawadekar
- Children's Palliative Care Project, Indian Association of Palliative Care, Mumbai, Maharashta 400012, India
| | - P Tilve
- Department of Palliative Medicine, Tata Memorial Centre, Mumbai, Maharashta 400012, India
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Fillion L, de Serres M, Tremblay A, Blais MC, Robitaille MA, Boucher S. Sensibiliser les équipes soignantes à la prise en compte de la souffrance psychique : l’expérience du dépistage de la détresse au CHU de Québec. PSYCHO-ONCOLOGIE 2014. [DOI: 10.1007/s11839-014-0456-4] [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: 10/25/2022]
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Cornut PL, Boujnah Y, Bezza Chellouai W, Marty AS, Beccat S, Boucher S, Burillon C. Évaluation de la faisabilité et de l’acceptabilité de la prise en charge en ambulatoire des patients opérés de décollement de rétine. J Fr Ophtalmol 2014; 37:23-9. [DOI: 10.1016/j.jfo.2013.05.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2013] [Revised: 05/15/2013] [Accepted: 05/17/2013] [Indexed: 10/26/2022]
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Downing J, Fowler-Kerry S, Boucher S. Paediatric palliative care professionals congregate in Rome. Int J Palliat Nurs 2013. [DOI: 10.12968/ijpn.2013.19.1.47] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- J Downing
- International Children’s Palliative Care Network (ICPCN), and Makerere University, Uganda
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Tessier S, Boucher S, Goulet M, Manseau H, Giami A. Sexologist: The professional activities related to sexual assault and intimate partner violence in Québec. Sexologies 2012. [DOI: 10.1016/j.sexol.2012.08.016] [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: 10/27/2022]
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Le Gall-Reculé G, Zwingelstein F, Boucher S, Le Normand B, Plassiart G, Portejoie Y, Decors A, Bertagnoli S, Guérin JL, Marchandeau S. Detection of a new variant of rabbit haemorrhagic disease virus in France. Vet Rec 2011; 168:137-8. [PMID: 21493491 DOI: 10.1136/vr.d697] [Citation(s) in RCA: 146] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Bouquin SL, Jobert J, Larour G, Balaine L, Eono F, Boucher S, Huneau A, Michel V. Risk factors for an acute expression of Epizootic Rabbit Enteropathy syndrome in rabbits after weaning in French kindling-to-finish farms. Livest Sci 2009. [DOI: 10.1016/j.livsci.2009.05.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Boucher S, Recordon-Pinson P, Ragnaud JM, Dupon M, Fleury H, Masquelier B. HIV-1 reverse transcriptase (RT) genotypic patterns and treatment characteristics associated with the K65R RT mutation. HIV Med 2007; 7:294-8. [PMID: 16945074 DOI: 10.1111/j.1468-1293.2006.00379.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [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: 11/28/2022]
Abstract
BACKGROUND The K65R HIV-1 reverse transcriptase (RT) mutation is a multidrug resistance mutation which may be correlated with specific antiretroviral combinations and with the presence or absence of other RT resistance mutations. OBJECTIVES The aims of this study were: (i) to determine the prevalence of the K65R mutation in a cohort of antiretroviral-treated patients; (ii) to study genotypic patterns and treatment characteristics in patients in whom the K65R mutation was present. STUDY DESIGN We included in the study all antiretroviral-experienced patients followed up at the Bordeaux University Hospital in 2003 and 2004 for whom an HIV-1 genotypic resistance analysis was available. Information on RT resistance mutations was reported from a hospital database including therapeutic and biological parameters. The prevalence of K65R was investigated for all patients. Genotypic patterns and treatment characteristics were examined at the time of detection of the K65R mutation. RESULTS The prevalence of K65R was 1.9% (26 of 1404 patients). K65R was associated with nucleoside RT inhibitor-based regimens in 22 patients, and with tenofovir disoproxil fumarate, lamivudine, didanosine and abacavir in 23, 17, 17 and eight patients, respectively. The M184V and Q151M mutations were the most commonly co-selected substitutions. Thymidine analogue mutations (TAMs) were rarely co-selected with K65R and inversely associated with K65R. CONCLUSION The K65R mutation may emerge preferentially in the absence of zidovudine and TAMs, suggesting the possibility of an antagonistic interaction between K65 and TAMs.
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Affiliation(s)
- S Boucher
- Département de Virologie et d'Immunologie Biologique, CHU de Bordeaux, and EA 2968 Université Victor Segalen Bordeaux, France
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Cauliez B, Boucher S, Duflo-Leroy A, Lavoinne A. [NT-proBNP measurement on Immulite 2500 (DPC): analytical performance and comparison with Roche Diagnostics and Dade-Behring NT-proBNP immunoassays]. Ann Biol Clin (Paris) 2007; 65:93-8. [PMID: 17264046] [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: 10/02/2006] [Accepted: 11/23/2006] [Indexed: 05/13/2023]
Abstract
The measurement of the N-terminal part of the proBNP (NT-proBNP) may be used to assess the secretion of the B-type natriuretic peptide (BNP), a marker of heart failure. In this study, we have evaluated the NT-proBNP immunoassay proposed by DPC Company for the Immulite 2500 analyzer and compared the results with those obtained with the two other immunoassays respectively commercialized by Roche Diagnostics (Elecsys 2010 analyzer) and Dade-Behring (Dimension RXL). The obtained results show very good general performance of the DPC's technique with a CV inferior to 8% for the values superior to 40 ng/L. The within run CVs are 3.1, 3.5 and 3.5% and the between run CVs are 3.8, 4.7 and 4.8% for the NT-proBNP levels of 151, 1601 and 5255 ng/L, respectively. We found a very good correlation between DPC's and Roche Diagnostics's assays (regression analysis: y = 0.88 x + 25.2 ; r = 0.998) and DPC's and Dade-Behring assays (regression analysis: y = 0.93 x + 16.4 ; r = 0.997). Although a small bias appeared between these assays, similar cut-points may be used to exclude both heart failure in ambulatory patients and cardiac origin in acute dyspnea.
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Affiliation(s)
- B Cauliez
- Laboratoire de Biochimie Médicale, Hôpital Charles Nicolle, Rouen.
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Rougier S, Galland D, Boucher S, Boussarie D, Vallé M. Epidemiology and susceptibility of pathogenic bacteria responsible for upper respiratory tract infections in pet rabbits. Vet Microbiol 2006; 115:192-8. [PMID: 16530989 DOI: 10.1016/j.vetmic.2006.02.003] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2005] [Revised: 01/26/2006] [Accepted: 02/03/2006] [Indexed: 10/24/2022]
Abstract
For 8 months, 121 pet rabbits of more than 2 months old were included in an epidemiological study aimed at determining the nature, prevalence and bacteriological susceptibility of pathogenic bacteria responsible for upper respiratory tract disease ("snuffles"). All rabbits presented with nasal discharge and sneezing at inclusion and had not received any antibiotics in the 30 days prior to the study. Nasal samples were taken from all the rabbits before they received any treatment. Isolation of bacterial strains, susceptibility testing by disk diffusion for marbofloxacin, enrofloxacin, danofloxacin, gentamicin, oxytetracycline, doxycycline, cefalexin, trimethoprim-sulfamethoxazole, and marbofloxacin MIC determination for each pathogenic bacterium were also performed. The main bacterial strains isolated were Pasteurella multocida (54.8%), Bordetella bronchiseptica (52.2%), Pseudomonas spp. (27.9%) and Staphylococcus spp. (17.4%). Snuffles was mainly due to a polybacterial infection, and the most frequently found combination was P. multocida and B. bronchiseptica (28.9% of rabbits). Marbofloxacin was shown to be the most effective agent against all bacterial strains (between 87.8% and 100% susceptibility according to strain) except B. bronchiseptica, for which gentamicin was slightly more effective (96% versus 88.9%). Compared to other fluoroquinolones tested, marbofloxacin exhibited the highest level of activity. Marbofloxacin MIC(90) was equivalent to 1.320, 0.079, 1.741 and 0.490microg/ml for B. bronchiseptica, P. multocida, Pseudomonas spp. and Staphylococcus spp. strains, respectively. In this study, marbofloxacin was shown to be a potentially good treatment option for upper respiratory tract disease in pet rabbits.
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Affiliation(s)
- S Rougier
- Vétoquinol S.A, Centre de Recherche, BP 189, 70204 Lure, France.
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Garrigue I, Roncin L, Boucher S, Tabrizi R, Milpied N, Fleury H, Lafon M. HHV6 quantification by real-time-PCR in different body compartments. J Clin Virol 2006. [DOI: 10.1016/s1386-6532(06)80813-9] [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: 11/29/2022]
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Lafon M, Gauthier A, Boucher S, Faure M, Garrigue I, Fleury H. HSV genotyping of “PCR-untyped” clinical samples. J Clin Virol 2006. [DOI: 10.1016/s1386-6532(06)80801-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Musumeci P, Tochitsky SY, Boucher S, Clayton CE, Doyuran A, England RJ, Joshi C, Pellegrini C, Ralph JE, Rosenzweig JB, Sung C, Tolmachev S, Travish G, Varfolomeev AA, Varfolomeev AA, Yarovoi T, Yoder RB. High energy gain of trapped electrons in a tapered, diffraction-dominated inverse-free-electron laser. Phys Rev Lett 2005; 94:154801. [PMID: 15904152 DOI: 10.1103/physrevlett.94.154801] [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: 10/18/2004] [Indexed: 05/02/2023]
Abstract
Energy gain of trapped electrons in excess of 20 MeV has been demonstrated in an inverse-free-electron-laser (IFEL) accelerator experiment. A 14.5 MeV electron beam is copropagated with a 400 GW CO2 laser beam in a 50 cm long undulator strongly tapered in period and field amplitude. The Rayleigh range of the laser, approximately 1.8 cm, is much shorter than the undulator length yielding a diffraction-dominated interaction. Experimental results on the dependence of the acceleration on injection energy, laser focus position, and laser power are discussed. Simulations, in good agreement with the experimental data, show that most of the energy gain occurs in the first half of the undulator at a gradient of 70 MeV/m and that the structure in the measured energy spectrum arises because of higher harmonic IFEL interaction in the second half of the undulator.
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Affiliation(s)
- P Musumeci
- Neptune Laboratory, Department of Physics and Astronomy, UCLA, Los Angeles, California 90095, USA
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Boucher S, Gracia E, Villa A, Fernández A, Nouaille L, Briffaud MA, Albizu I, Baselga R. Pathogens in the reproductive tract of farm rabbits. Vet Rec 2001; 149:677-8. [PMID: 11765326 DOI: 10.1136/vr.149.22.677] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Vamvakaki M, Unali GF, Bütün V, Boucher S, Robinson KL, Billingham NC, Armes SP. Effect of Partial Quaternization on the Aqueous Solution Properties of Tertiary Amine-Based Polymeric Surfactants: Unexpected Separation of Surface Activity and Cloud Point Behavior. Macromolecules 2001. [DOI: 10.1021/ma010844i] [Citation(s) in RCA: 69] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- M. Vamvakaki
- School of Chemistry, Physics and Environmental Science, University of Sussex, Falmer, Brighton, East Sussex, BN1 9QJ, UK
| | - G.-F. Unali
- School of Chemistry, Physics and Environmental Science, University of Sussex, Falmer, Brighton, East Sussex, BN1 9QJ, UK
| | - V. Bütün
- School of Chemistry, Physics and Environmental Science, University of Sussex, Falmer, Brighton, East Sussex, BN1 9QJ, UK
| | - S. Boucher
- School of Chemistry, Physics and Environmental Science, University of Sussex, Falmer, Brighton, East Sussex, BN1 9QJ, UK
| | - K. L. Robinson
- School of Chemistry, Physics and Environmental Science, University of Sussex, Falmer, Brighton, East Sussex, BN1 9QJ, UK
| | - N. C. Billingham
- School of Chemistry, Physics and Environmental Science, University of Sussex, Falmer, Brighton, East Sussex, BN1 9QJ, UK
| | - S. P. Armes
- School of Chemistry, Physics and Environmental Science, University of Sussex, Falmer, Brighton, East Sussex, BN1 9QJ, UK
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Bernard Y, Meneveau N, Boucher S, Magnin D, Anguenot T, Schiele F, Vuillemenot A, Bassand JP. Lack of agreement between left ventricular volumes and ejection fraction determined by two-dimensional echocardiography and contrast cineangiography in postinfarction patients. Echocardiography 2001; 18:113-22. [PMID: 11262534 DOI: 10.1046/j.1540-8175.2001.00113.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.1] [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: 11/20/2022] Open
Abstract
OBJECTIVE To assess the agreement between left ventricular (LV) volumes and ejection fraction (EF) determined by two-dimensional echocardiography (2-D echo) and by cineangiography in postinfarction patients. DESIGN LV end-diastolic and end-systolic volumes indexed (EDVI and ESVI) to body surface area as well as EF were determined by both methods in all patients. SETTING Multicenter trial conducted in five university hospitals. PATIENTS 63 patients, 61 male, two female, mean age 55.5 +/- 10.4 years, suffering from a recent myocardial infarction. Eighty-one pairs of measurements were available. METHODS The results of biplane 2-D echo measures, using apical four-chamber (4C) and two-chamber (2C) views were compared to those of a 30 degrees right anterior oblique cineangiography projection, using either the apical method of discs or the area-length 2-D echo method. Moreover, eyeball EF was estimated at 2-D echo and cineangiography, and was compared to the conventional methods. The agreement between results was assessed by the Bland and Altman method. RESULTS The agreement between 2-D echo and cineangiography results was poor. Mean differences (MD) were -21.8 (EDVI, ml/m(2)), -9.5 (ESVI, ml/m(2)), and -0.9 (EF, %), respectively for 2-D echo method of discs versus cineangiography, and -23.2, -9.3, and -5.7 for area-length 2-D echo versus cineangiography. For EF (%), MD was -3.6 for eyeball cineangiography versus cineangiography, -1.3 for eyeball 2-D echo versus method of discs, and +0.30 for eyeball 2-D echo versus area-length 2-D echo, respectively. Two-dimensional echo is likely to underestimate LV volumes compared to cineangiography, especially for largest volumes. Even for EF, discrepancies are large, with a lack of agreement of 21%-25% between conventional methods, but agreement is better between eyeball EF and usual methods. CONCLUSIONS Even with modern echocardiographic devices, agreement between 2-D echo and cineangiography-derived LV volumes and EF remains moderate, and both methods must not be considered interchangeable in clinical practice.
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Affiliation(s)
- Y Bernard
- Pôle Coeur Poumons, Hôpital Universitaire Jean-Minjoz, 25030 Besançon Cedex, France.
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Abstract
BACKGROUND Inhaled corticosteroids are known to be beneficial for patients with asthma, but their role in treating patients with stable chronic obstructive pulmonary disease (COPD) remains controversial. A study was undertaken to determine whether inhaled corticosteroids are of functional benefit in patients who did not show improvement with a trial of oral corticosteroids. METHODS In phase I patients with stable COPD were given a two week course of oral placebo followed by two weeks of prednisone 40 mg per day in a single blind manner to distinguish between responders and non-responders to oral corticosteroids. In phase II a double blind, randomised, parallel group trial of inhaled budesonide 1600 micrograms per day versus placebo was carried out in 79 nonresponders to oral corticosteroids. The primary outcome measure was forced expiratory volume in one second (FEV1), and secondary outcome measures were exercise capacity, dyspnoea with exertion, quality of life, peak expiration flow rate, and respiratory symptoms. RESULTS Randomisation allocated 39 subjects to inhaled corticosteroids and 40 to placebo. There was no difference in the change in FEV1 from baseline between the treatment and placebo groups; mean difference -12 ml (95% CI -88 to 63) at three months and -4 ml (95% CI -95 to 87) at six months. The proportion of patients with a 15% or greater improvement was no higher among those receiving inhaled corticosteroids than in the placebo group at any of the follow up visits. Changes in secondary outcomes were also no different. CONCLUSIONS Inhaled corticosteroids, even at high doses, were of no physiological or functional benefit in these patients with advanced COPD.
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Affiliation(s)
- J Bourbeau
- McGill University Health Centre, McGill University, Montreal, Canada
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Abstract
"This paper examines the net effects of migration and remittances on income distribution. Potential home earnings of migrants are imputed, as are the earnings of non-migrants in migrant households, in order to construct no-migration counterfactuals to compare with the observed income distribution including remittances. The earnings functions used to impute migrant home earnings are estimated from observations on non-migrants in a selection-corrected estimation framework which incorporates migration choice and labor-force participation decisions. For a sample of households in Bluefields, Nicaragua, migration and remittances increase income inequality when compared with the no-migration counterfactual."
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46
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Boucher S. [Solange Boucher and the care of diabetic patients. Interview by Sylvie Vallieres]. Infirm Que 1998; 5:23-6. [PMID: 9708162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Montplaisir J, Boucher S, Nicolas A, Lesperance P, Gosselin A, Rompré P, Lavigne G. Immobilization tests and periodic leg movements in sleep for the diagnosis of restless leg syndrome. Mov Disord 1998; 13:324-9. [PMID: 9539348 DOI: 10.1002/mds.870130220] [Citation(s) in RCA: 159] [Impact Index Per Article: 6.1] [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: 11/09/2022] Open
Abstract
Patients with restless leg syndrome (RLS) complain of motor restlessness, usually occurring while they rest in the evening. Two immobilization tests have been described to assess leg restlessness in these patients. In the first test, the patient sits in bed with his or her legs outstretched while electromyograms are recorded from right and left anterior tibialis muscles for an hour (Suggested Immobilization Test [SIT]); in the second test, the legs are immobilized in a stretcher (Forced Immobilization Test [FIT]). In the current study, the SIT and the FIT were compared in patients with RLS and normal control subjects matched for age and sex. More leg movements were seen in patients than in controls during immobilization tests, especially the SIT. These movements were periodic, occurring at a frequency of approximately one every 12 seconds. The SIT (index > 40) was found to discriminate between RLS and control subjects better than the FIT (index > 25). Patients were also recorded during two consecutive nights to measure periodic leg movements in sleep (PLMS). A SIT index greater than 40 and a PLMS index greater than 11 (highest PLMS index of 2 consecutive nights) were found to discriminate patients with RLS from control subjects with similar power. With each of these two measures, the clinical diagnosis was correctly predicted in 81% of patients and 81% of the control subjects. The SIT has several advantages over the measure of the PLMS index; it does not require an all-night polygraphic recording and can be administered several times a day to measure circadian fluctuation of motor restlessness.
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Affiliation(s)
- J Montplaisir
- Centre d'étude du Sommeil, Hôpital Sacré-Coeur de Montréal, and Université de Montréal, Québec, Canada
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Mazars E, Guyot K, Durand I, Dei-Cas E, Boucher S, Abderrazak SB, Banuls AL, Tibayrenc M, Camus D. Isoenzyme diversity in Pneumocystis carinii from rats, mice, and rabbits. J Infect Dis 1997; 175:655-60. [PMID: 9041338 DOI: 10.1093/infdis/175.3.655] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Pneumocystis carinii is an opportunistic pathogen that causes pneumonia in immunocompromised patients. To investigate the genetic diversity of P. carinii populations, multilocus enzyme electrophoresis was used to analyze five enzyme systems (malate dehydrogenase, glucose phosphate isomerase, leucine aminopeptidase, malic enzyme, and 6-phosphogluconate dehydrogenase). Only five different multilocus associations (zymodemes) were recorded for the 70 isolates studied. While only one multilocus combination was found in mice and rabbits, three different multilocus associations were recorded in rats. Population genetic tests and phylogenetic analysis strongly suggest that P. carinii genotypes are host-specific, in agreement with molecular study results, and that no genetic exchange occurs between genotypes from different host species. This hypothesis could be verified only by the evolutionary genetic approach, which relies here on multilocus analysis.
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Affiliation(s)
- E Mazars
- INSERM (U42), Villeneuve d'Ascq, France
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Iyengar S, Hipskind PA, Gehlert DR, Schober D, Lobb KL, Nixon JA, Helton DR, Kallman MJ, Boucher S, Couture R, Li DL, Simmons RM. LY303870, a centrally active neurokinin-1 antagonist with a long duration of action. J Pharmacol Exp Ther 1997; 280:774-85. [PMID: 9023291] [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: 02/03/2023] Open
Abstract
The selective neurokinin (NK)-1 antagonist LY303870 has high affinity and specificity for human and guinea pig brain NK-1 receptors labeled with 125I-substance P. It has approximately 15- to 30-fold lower affinity for rat and mouse brain NK-1 receptors, consistent with previously reported species differences in the affinities of nonpeptide antagonists for NK-1 receptors. In vivo, LY303870 blocked the characteristic, caudally directed, biting and scratching response elicited by intrathecal administration of the selective NK-1 agonist Ac-[Arg6,Sar9,Met(O2)11]substance P6-11 in conscious mice. The potentiation of the tail-flick response elicited by intrathecal administration of the NK-1 agonist [Sar9,Met(O2)11]substance P in rats was also selectively blocked by LY303870. When tested in a model of persistent nociceptive activation induced by tissue injury (the formalin test), LY303870 blocked licking behavior in the late phase of the formalin test, in a dose-dependent manner. After oral administration of 10 mg/kg, the blockade of the late-phase licking behavior was evident for at least 24 hr. Ex vivo binding studies in guinea pigs showed that orally administered LY303870 potently inhibited binding to central and peripheral NK-1 receptors labeled with 125I-substance P. This inhibition was long-lasting, consistent with other in vivo activities. LY306155, the opposite enantiomer of LY303870, was less active in all of the functional assays. In rodents, LY303870 did not exhibit any neurological, motor, cardiovascular, gastrointestinal or autonomic side effects at doses of < or = 50 mg/kg p.o. Thus, LY303870 is a potent, centrally active, NK-1 antagonist in vivo, with long-lasting oral activity.
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Affiliation(s)
- S Iyengar
- CNS Research, Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana 46285, USA
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Kingma I, Ludwin D, Dandavino R, Wolff JL, Loertscher R, Beauregard-Zollinger L, Bacquet P, Boucher S, Rivière M. Economic analysis of Neoral in de novo renal transplant patients in Canada. Clin Transplant 1997; 11:42-8. [PMID: 9067694] [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: 02/03/2023]
Abstract
This pilot economic evaluation was performed as part of the Canadian arm of an international randomized, controlled, double-blind safety and tolerability trial (OLM-105/NOF-2). The clinical study compared the safety and tolerability of a new microemulsion oral formulation of cyclosporine A (Neoral) with the oral cyclosporine. A preparation currently in use (Sandimmune SGC)/(SGC). To assess the economic impact of Neoral in newly grafted renal transplant patients, primary cost data were collected at the five participating Canadian centers and evaluated from the Ministry of Health (MOH) and hospital perspectives. The results of this cost analysis are presented in this paper. Since the new formulation has shown more consistent absorption and a more predictable pharmacokinetic profile, medical resource utilization and, consequently, cost of treatment could be expected to be lower for those renal transplant recipients treated with Neoral than for those receiving standard SGC. The findings of this study support this hypothesis. Robustness of the conclusion was confirmed with sensitivity analyses. Reduced health care costs for patients treated with Neoral were primarily a result of fewer hospitalization days and lower physician costs for inpatient and outpatient procedures.
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Affiliation(s)
- I Kingma
- Université Laval, Quebec, Canada
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