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Amat F. [Biologics in severe childhood asthma]. Rev Mal Respir 2023; 40:675-683. [PMID: 37749027 DOI: 10.1016/j.rmr.2023.09.002] [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: 12/30/2022] [Accepted: 06/20/2023] [Indexed: 09/27/2023]
Abstract
INTRODUCTION Severe asthma in children remains relatively rare. It is no longer considered as a single disease but rather as a syndrome corresponding to different phenotypes and distinct pathophysiological pathways. Various biomarkers can contribute to phenotyping, essentially specific IgE test results, blood eosinophil counts, the exhaled fraction of NO (FeNO) assay, as well as deep lung biomarkers from induced sputum, bronchoalveolar lavage or bronchial biopsy. STATE OF KNOWLEDGE In children, the biologics currently approved for severe asthma are omalizumab, mepolizumab and dupilumab from the age of 6, and tezepelumab from the age of 12. PERSPECTIVES Benralizumab and tezepelumab offer promising perspectives and a pediatric extension could be of interest in future treatment of severe pediatric asthma. CONCLUSIONS Based on physiopathological mechanisms, biologics represent a new and promising approach in the treatment of asthma. That said, the long-term efficacy and impact of these treatments on the natural history of the disease require further investigation. It is of paramount importance to take into account the specificities of pediatric asthma and, more particularly, to conduct clinical trials in younger patients.
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Affiliation(s)
- F Amat
- Service de pneumologie et d'allergologie pédiatrique, CRCM, hôpital Robert-Debré, AP-HP, 48, boulevard Sérurier, 75019 Paris, France; Inserm 1018, Centre de recherche en épidémiologie et santé des populations, épidémiologie respiratoire intégrative, Villejuif, France.
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2
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Amat F, Labbé A. [Allergic immunotherapy in children and adolescents]. Rev Fr Allergol (2009) 2020; 60:554-558. [PMID: 32922566 PMCID: PMC7474839 DOI: 10.1016/j.reval.2020.07.003] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 07/29/2020] [Indexed: 11/21/2022]
Abstract
L’immunothérapie spécifique allergénique nécessite l’administration répétée d’allergènes dans le but de provoquer une tolérance clinique et immunologique. C’est la seule thérapeutique à visée étiologique qui permet de modifier l’évolution de la maladie en assurant une rémission après l’interruption de la procédure. La prévention de nouvelles sensibilisations par l’immunothérapie reste discutée. Nous envisagerons dans cette revue les principaux mécanismes immunologiques et les indications de l’immunothérapie chez l’enfant et l’adolescent.
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Affiliation(s)
- F Amat
- Service de pneumologie et d'allergologie pédiatrique-CRCM, hôpital Robert-Debré, Inserm UMRS1136 EPAR, Paris, France
| | - A Labbé
- UFR de médecine et des professions paramédicales, université Clermont-Auvergne, France
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Bédard A, Antó JM, Fonseca JA, Arnavielhe S, Bachert C, Bedbrook A, Bindslev‐Jensen C, Bosnic‐Anticevich S, Cardona V, Cruz AA, Fokkens WJ, Garcia‐Aymerich J, Hellings PW, Ivancevich JC, Klimek L, Kuna P, Kvedariene V, Larenas‐Linnemann D, Melén E, Monti R, Mösges R, Mullol J, Papadopoulos NG, Pham‐Thi N, Samolinski B, Tomazic PV, Toppila‐Salmi S, Ventura MT, Yorgancioglu A, Bousquet J, Pfaar O, Basagaña X, Aberer W, Agache I, Akdis CA, Akdis M, Aliberti MR, Almeida R, Amat F, Angles R, Annesi‐Maesano I, Ansotegui IJ, Anto JM, Arnavielle S, Asayag E, Asarnoj A, Arshad H, Avolio F, Bacci E, Baiardini I, Barbara C, Barbagallo M, Baroni I, Barreto BA, Bateman ED, Bedolla‐Barajas M, Bewick M, Beghé B, Bel EH, Bergmann KC, Bennoor KS, Benson M, Bertorello L, Białoszewski AZ, Bieber T, Bialek S, Bjermer L, Blain H, Blasi F, Blua A, Bochenska Marciniak M, Bogus‐Buczynska I, Boner AL, Bonini M, Bonini S, Bosse I, Bouchard J, Boulet LP, Bourret R, Bousquet PJ, Braido F, Briedis V, Brightling CE, Brozek J, Bucca C, Buhl R, Buonaiuto R, Panaitescu C, Burguete Cabañas MT, Burte E, Bush A, Caballero‐Fonseca F, Caillaud D, Caimmi D, Calderon MA, Camargos PAM, Camuzat T, Canfora G, Canonica GW, Carlsen KH, Carreiro‐Martins P, Carriazo AM, Carr W, Cartier C, Casale T, Castellano G, Cecchi L, Cepeda AM, Chavannes NH, Chen Y, Chiron R, Chivato T, Chkhartishvili E, Chuchalin AG, Chung KF, Ciaravolo MM, Ciceran A, Cingi C, Ciprandi G, Carvalho Coehlo AC, Colas L, Colgan E, Coll J, Conforti D, Constantinidis J, Correia de Sousa J, Cortés‐Grimaldo RM, Corti F, Costa E, Costa‐Dominguez MC, Courbis AL, Cox L, Crescenzo M, Custovic A, Czarlewski W, Dahlen SE, D'Amato G, Dario C, da Silva J, Dauvilliers Y, Darsow U, De Blay F, De Carlo G, Dedeu T, de Fátima Emerson M, De Feo G, De Vries G, De Martino B, Motta Rubini NP, Deleanu D, Denburg JA, Devillier P, Di Capua Ercolano S, Di Carluccio N, Didier A, Dokic D, Dominguez‐Silva MG, Douagui H, Dray G, Dubakiene R, Durham SR, Du Toit G, Dykewicz MS, El‐Gamal Y, Eklund P, Eller E, Emuzyte R, Farrell J, Farsi A, Ferreira de Mello J, Ferrero J, Fink‐Wagner A, Fiocchi A, Fontaine JF, Forti S, Fuentes‐Perez JM, Gálvez‐Romero JL, Gamkrelidze A, García‐Cobas CY, Garcia‐Cruz MH, Gemicioğlu B, Genova S, Christoff G, Gereda JE, Gerth van Wijk R, Gomez RM, Gómez‐Vera J, González Diaz S, Gotua M, Grisle I, Guidacci M, Guldemond NA, Gutter Z, Guzmán MA, Haahtela T, Hajjam J, Hernández L, Hourihane JO, Huerta‐Villalobos YR, Humbert M, Iaccarino G, Illario M, Ispayeva Z, Jares EJ, Jassem E, Johnston SL, Joos G, Jung KS, Just J, Jutel M, Kaidashev I, Kalayci O, Kalyoncu AF, Karjalainen J, Kardas P, Keil T, Keith PK, Khaitov M, Khaltaev N, Kleine‐Tebbe J, Kowalski ML, Kuitunen M, Kull I, Kupczyk M, Krzych‐Fałta E, Lacwik P, Laune D, Lauri D, Lavrut J, Le LTT, Lessa M, Levato G, Li J, Lieberman P, Lipiec A, Lipworth B, Lodrup Carlsen KC, Louis R, Lourenço O, Luna‐Pech JA, Magnan A, Mahboub B, Maier D, Mair A, Majer I, Malva J, Mandajieva E, Manning P, De Manuel Keenoy E, Marshall GD, Masjedi MR, Maspero JF, Mathieu‐Dupas E, Matta Campos JJ, Matos AL, Maurer M, Mavale‐Manuel S, Mayora O, Meco C, Medina‐Avalos MA, Melo‐Gomes E, Meltzer EO, Menditto E, Mercier J, Miculinic N, Mihaltan F, Milenkovic B, Moda G, Mogica‐Martinez MD, Mohammad Y, Momas I, Montefort S, Mora Bogado D, Morais‐Almeida M, Morato‐Castro FF, Mota‐Pinto A, Moura Santo P, Münter L, Muraro A, Murray R, Naclerio R, Nadif R, Nalin M, Napoli L, Namazova‐Baranova L, Neffen H, Niedeberger V, Nekam K, Neou A, Nieto A, Nogueira‐Silva L, Nogues M, Novellino E, Nyembue TD, O'Hehir RE, Odzhakova C, Ohta K, Okamoto Y, Okubo K, Onorato GL, Ortega Cisneros M, Ouedraogo S, Pali‐Schöll I, Palkonen S, Panzner P, Park HS, Papi A, Passalacqua G, Paulino E, Pawankar R, Pedersen S, Pépin JL, Pereira AM, Persico M, Phillips J, Picard R, Pigearias B, Pin I, Pitsios C, Plavec D, Pohl W, Popov TA, Portejoie F, Potter P, Pozzi AC, Price D, Prokopakis EP, Puy R, Pugin B, Pulido Ross RE, Przemecka M, Rabe KF, Raciborski F, Rajabian‐Soderlund R, Reitsma S, Ribeirinho I, Rimmer J, Rivero‐Yeverino D, Rizzo JA, Rizzo MC, Robalo‐Cordeiro C, Rodenas F, Rodo X, Rodriguez Gonzalez M, Rodriguez‐Mañas L, Rolland C, Rodrigues Valle S, Roman Rodriguez M, Romano A, Rodriguez‐Zagal E, Rolla G, Roller‐Wirnsberger RE, Romano M, Rosado‐Pinto J, Rosario N, Rottem M, Ryan D, Sagara H, Salimäki J, Sanchez‐Borges M, Sastre‐Dominguez J, Scadding GK, Schunemann HJ, Scichilone N, Schmid‐Grendelmeier P, Sarquis Serpa F, Shamai S, Sheikh A, Sierra M, Simons FER, Siroux V, Sisul JC, Skrindo I, Solé D, Somekh D, Sondermann M, Sooronbaev T, Sova M, Sorensen M, Sorlini M, Spranger O, Stellato C, Stelmach R, Stukas R, Sunyer J, Strozek J, Szylling A, Tebyriçá JN, Thibaudon M, To T, Todo‐Bom A, Trama U, Triggiani M, Suppli Ulrik C, Urrutia‐Pereira M, Valenta R, Valero A, Valiulis A, Valovirta E, van Eerd M, van Ganse E, van Hage M, Vandenplas O, Vezzani G, Vasankari T, Vatrella A, Verissimo MT, Viart F, Viegi G, Vicheva D, Vontetsianos T, Wagenmann M, Walker S, Wallace D, Wang DY, Waserman S, Werfel T, Westman M, Wickman M, Williams DM, Williams S, Wilson N, Wright J, Wroczynski P, Yakovliev P, Yawn BP, Yiallouros PK, Yusuf OM, Zar HJ, Zhang L, Zhong N, Zernotti ME, Zhanat I, Zidarn M, Zuberbier T, Zubrinich C, Zurkuhlen A. Correlation between work impairment, scores of rhinitis severity and asthma using the MASK-air ® App. Allergy 2020; 75:1672-1688. [PMID: 31995656 DOI: 10.1111/all.14204] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 11/23/2019] [Accepted: 12/05/2019] [Indexed: 12/13/2022]
Abstract
BACKGROUND In allergic rhinitis, a relevant outcome providing information on the effectiveness of interventions is needed. In MASK-air (Mobile Airways Sentinel Network), a visual analogue scale (VAS) for work is used as a relevant outcome. This study aimed to assess the performance of the work VAS work by comparing VAS work with other VAS measurements and symptom-medication scores obtained concurrently. METHODS All consecutive MASK-air users in 23 countries from 1 June 2016 to 31 October 2018 were included (14 189 users; 205 904 days). Geolocalized users self-assessed daily symptom control using the touchscreen functionality on their smart phone to click on VAS scores (ranging from 0 to 100) for overall symptoms (global), nose, eyes, asthma and work. Two symptom-medication scores were used: the modified EAACI CSMS score and the MASK control score for rhinitis. To assess data quality, the intra-individual response variability (IRV) index was calculated. RESULTS A strong correlation was observed between VAS work and other VAS. The highest levels for correlation with VAS work and variance explained in VAS work were found with VAS global, followed by VAS nose, eye and asthma. In comparison with VAS global, the mCSMS and MASK control score showed a lower correlation with VAS work. Results are unlikely to be explained by a low quality of data arising from repeated VAS measures. CONCLUSIONS VAS work correlates with other outcomes (VAS global, nose, eye and asthma) but less well with a symptom-medication score. VAS work should be considered as a potentially useful AR outcome in intervention studies.
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4
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Bousquet J, Arnavielhe S, Bedbrook A, Bewick M, Laune D, Mathieu-Dupas E, Murray R, Onorato GL, Pépin JL, Picard R, Portejoie F, Costa E, Fonseca J, Lourenço O, Morais-Almeida M, Todo-Bom A, Cruz AA, da Silva J, Serpa FS, Illario M, Menditto E, Cecchi L, Monti R, Napoli L, Ventura MT, De Feo G, Larenas-Linnemann D, Fuentes Perez M, Huerta Villabolos YR, Rivero-Yeverino D, Rodriguez-Zagal E, Amat F, Annesi-Maesano I, Bosse I, Demoly P, Devillier P, Fontaine JF, Just J, Kuna TP, Samolinski B, Valiulis A, Emuzyte R, Kvedariene V, Ryan D, Sheikh A, Schmidt-Grendelmeier P, Klimek L, Pfaar O, Bergmann KC, Mösges R, Zuberbier T, Roller-Wirnsberger RE, Tomazic P, Fokkens WJ, Chavannes NH, Reitsma S, Anto JM, Cardona V, Dedeu T, Mullol J, Haahtela T, Salimäki J, Toppila-Salmi S, Valovirta E, Gemicioğlu B, Yorgancioglu A, Papadopoulos N, Prokopakis EP, Bosnic-Anticevich S, O'Hehir R, Ivancevich JC, Neffen H, Zernotti E, Kull I, Melen E, Wickman M, Bachert C, Hellings P, Palkonen S, Bindslev-Jensen C, Eller E, Waserman S, Sova M, De Vries G, van Eerd M, Agache I, Casale T, Dykewickz M, Naclerio RN, Okamoto Y, Wallace DV. MASK 2017: ARIA digitally-enabled, integrated, person-centred care for rhinitis and asthma multimorbidity using real-world-evidence. Clin Transl Allergy 2018; 8:45. [PMID: 30386555 PMCID: PMC6201545 DOI: 10.1186/s13601-018-0227-6] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Accepted: 09/07/2018] [Indexed: 12/11/2022] Open
Abstract
mHealth, such as apps running on consumer smart devices is becoming increasingly popular and has the potential to profoundly affect healthcare and health outcomes. However, it may be disruptive and results achieved are not always reaching the goals. Allergic Rhinitis and its Impact on Asthma (ARIA) has evolved from a guideline using the best evidence-based approach to care pathways suited to real-life using mobile technology in allergic rhinitis (AR) and asthma multimorbidity. Patients largely use over-the-counter medications dispensed in pharmacies. Shared decision making centered around the patient and based on self-management should be the norm. Mobile Airways Sentinel networK (MASK), the Phase 3 ARIA initiative, is based on the freely available MASK app (the Allergy Diary, Android and iOS platforms). MASK is available in 16 languages and deployed in 23 countries. The present paper provides an overview of the methods used in MASK and the key results obtained to date. These include a novel phenotypic characterization of the patients, confirmation of the impact of allergic rhinitis on work productivity and treatment patterns in real life. Most patients appear to self-medicate, are often non-adherent and do not follow guidelines. Moreover, the Allergy Diary is able to distinguish between AR medications. The potential usefulness of MASK will be further explored by POLLAR (Impact of Air Pollution on Asthma and Rhinitis), a new Horizon 2020 project using the Allergy Diary.
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Affiliation(s)
- J Bousquet
- MACVIA-France, Fondation Partenariale FMC VIA-LR, CHRU Arnaud de Villeneuve, 371 Avenue du Doyen Gaston Giraud, Montpellier, France.,INSERM U 1168, VIMA: Ageing and Chronic Diseases Epidemiological and Public Health Approaches, Villejuif, Université Versailles St-Quentin-en-Yvelines, UMR-S 1168, Montigny le Bretonneux, France.,Euforea, Brussels, Belgium
| | | | - A Bedbrook
- MACVIA-France, Fondation Partenariale FMC VIA-LR, CHRU Arnaud de Villeneuve, 371 Avenue du Doyen Gaston Giraud, Montpellier, France
| | - M Bewick
- iQ4U Consultants Ltd, London, UK
| | - D Laune
- KYomed-INNOV, Montpellier, France
| | | | - R Murray
- MedScript Ltd, Dundalk, Co Louth Ireland
| | - G L Onorato
- MACVIA-France, Fondation Partenariale FMC VIA-LR, CHRU Arnaud de Villeneuve, 371 Avenue du Doyen Gaston Giraud, Montpellier, France
| | - J L Pépin
- 7Laboratoire HP2, Grenoble, INSERM, U1042, Université Grenoble Alpes, Grenoble, France.,8CHU de Grenoble, Grenoble, France
| | - R Picard
- Conseil Général de l'Economie Ministère de l'Economie, de l'Industrie et du Numérique, Paris, France
| | - F Portejoie
- MACVIA-France, Fondation Partenariale FMC VIA-LR, CHRU Arnaud de Villeneuve, 371 Avenue du Doyen Gaston Giraud, Montpellier, France
| | - E Costa
- 10UCIBIO, REQUINTE, Faculty of Pharmacy and Competence Center on Active and Healthy Ageing, University of Porto (Porto4Ageing), Porto, Portugal
| | - J Fonseca
- 11Center for Health Technology and Services Research- CINTESIS, Faculdade de Medicina, Universidade do Porto, Porto, Portugal.,Medida, Lda, Porto, Portugal
| | - O Lourenço
- 13Faculty of Health Sciences and CICS - UBI, Health Sciences Research Centre, University of Beira Interior, Covilhã, Portugal
| | | | - A Todo-Bom
- 15Imunoalergologia, Centro Hospitalar Universitário de Coimbra and Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - A A Cruz
- 16ProAR - Nucleo de Excelencia em Asma, Federal University of Bahia, Vitória da Conquista, Brazil.,WHO GARD Planning Group, Salvador, Brazil
| | - J da Silva
- 18Allergy Service, University Hospital of Federal University of Santa Catarina (HU-UFSC), Florianópolis, Brazil
| | - F S Serpa
- 19Asthma Reference Center, Escola Superior de Ciencias da Santa Casa de Misericordia de Vitoria, Vitória, Esperito Santo Brazil
| | - M Illario
- Division for Health Innovation, Campania Region and Federico II University Hospital Naples (R&D and DISMET), Naples, Italy
| | - E Menditto
- 21CIRFF, Federico II University, Naples, Italy
| | - L Cecchi
- SOS Allergology and Clinical Immunology, USL Toscana Centro, Prato, Italy
| | - R Monti
- 23Department of Medical Sciences, Allergy and Clinical Immunology Unit, University of Torino & Mauriziano Hospital, Torino, Italy
| | - L Napoli
- Consortium of Pharmacies and Services COSAFER, Salerno, Italy
| | - M T Ventura
- 25Unit of Geriatric Immunoallergology, University of Bari Medical School, Bari, Italy
| | - G De Feo
- 26Department of Medicine, Surgery and Dentistry "Scuola Medica Salernitana", University of Salerno, Salerno, Italy
| | - D Larenas-Linnemann
- 27Center of Excellence in Asthma and Allergy, Hospital Médica Sur, México City, Mexico
| | | | | | | | | | - F Amat
- 31Allergology Department, Centre de l'Asthme et des Allergies Hôpital d'Enfants Armand-Trousseau (APHP), Paris, France.,32UPMC Univ Paris 06, UMR_S 1136, Institut Pierre Louis d'Epidémiologie et de Santé Publique, Sorbonne Universités, Equipe EPAR, 75013 Paris, France
| | - I Annesi-Maesano
- 33Epidemiology of Allergic and Respiratory Diseases, Department Institute Pierre Louis of Epidemiology and Public Health, INSERM, UPMC Sorbonne Université, Medical School Saint Antoine, Paris, France
| | | | - P Demoly
- 35Department of Respiratory Diseases, Montpellier University Hospital, Montpellier, France
| | - P Devillier
- 36UPRES EA220, Pôle des Maladies des Voies Respiratoires, Hôpital Foch, Université Paris-Saclay, Suresnes, France
| | | | - J Just
- 31Allergology Department, Centre de l'Asthme et des Allergies Hôpital d'Enfants Armand-Trousseau (APHP), Paris, France.,32UPMC Univ Paris 06, UMR_S 1136, Institut Pierre Louis d'Epidémiologie et de Santé Publique, Sorbonne Universités, Equipe EPAR, 75013 Paris, France
| | - T P Kuna
- 38Division of Internal Medicine, Asthma and Allergy, Barlicki University Hospital, Medical University of Lodz, Lodz, Poland
| | - B Samolinski
- 39Department of Prevention of Environmental Hazards and Allergology, Medical University of Warsaw, Warsaw, Poland
| | - A Valiulis
- 40Clinic of Children's Diseases, and Institute of Health Sciences Department of Public Health, Vilnius University Institute of Clinical Medicine, Vilnius, Lithuania.,European Academy of Paediatrics (EAP/UEMS-SP), Brussels, Belgium
| | - R Emuzyte
- 42Clinic of Children's Diseases, Faculty of Medicine, Vilnius University, Vilnius, Lithuania
| | - V Kvedariene
- 43Faculty of Medicine, Vilnius University, Vilnius, Lithuania
| | - D Ryan
- Woodbrook Medical Centre, Loughborough, UK.,45Allergy and Respiratory Research Group, Usher Institute of Population Health Sciences and Informatics, University of Edinburgh, Medical School, Edinburgh, UK
| | - A Sheikh
- 46Centre of Medical Informatics, Usher Institute of Population Health Sciences and Informatics, The University of Edinburgh, Edinburgh, UK
| | - P Schmidt-Grendelmeier
- 47Allergy Unit, Department of Dermatology, University Hospital of Zurich, Zürich, Switzerland
| | - L Klimek
- Center for Rhinology and Allergology, Wiesbaden, Germany.,49Department of Otorhinolaryngology, Head and Neck Surgery, Universitätsmedizin Mannheim, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - O Pfaar
- Center for Rhinology and Allergology, Wiesbaden, Germany.,49Department of Otorhinolaryngology, Head and Neck Surgery, Universitätsmedizin Mannheim, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - K C Bergmann
- 50Comprehensive Allergy-Centre-Charité, Department of Dermatology and Allergy, Charité - Universitätsmedizin Berlin, Berlin, Germany.,Global Allergy and Asthma European Network (GA2LEN), Berlin, Germany
| | - R Mösges
- 52Institute of Medical Statistics, and Computational Biology, Medical Faculty, University of Cologne, Cologne, Germany.,CRI-Clinical Research International-Ltd, Hamburg, Germany
| | - T Zuberbier
- 50Comprehensive Allergy-Centre-Charité, Department of Dermatology and Allergy, Charité - Universitätsmedizin Berlin, Berlin, Germany.,Global Allergy and Asthma European Network (GA2LEN), Berlin, Germany
| | | | - P Tomazic
- 55Department of ENT, Medical University of Graz, Graz, Austria
| | - W J Fokkens
- 56Department of Otorhinolaryngology, Academic Medical Centre, Amsterdam, The Netherlands
| | - N H Chavannes
- 57Department of Public Health and Primary Care, Leiden University Medical Center, Leiden, The Netherlands
| | - S Reitsma
- 56Department of Otorhinolaryngology, Academic Medical Centre, Amsterdam, The Netherlands
| | - J M Anto
- ISGlobAL, Centre for Research in Environmental Epidemiology (CREAL), Barcelona, Spain.,59IMIM (Hospital del Mar Research Institute), Barcelona, Spain.,60CIBER Epidemiología y Salud Pública (CIBERESP), Barcelona, Spain.,61Universitat Pompeu Fabra (UPF), Barcelona, Spain
| | - V Cardona
- 62Allergy Section, Department of Internal Medicine, Hospital Vall 'dHebron & ARADyAL Research Network, Barcelona, Spain
| | - T Dedeu
- 63AQuAS, Barcelona, Spain.,EUREGHA, European Regional and Local Health Association, Brussels, Belgium
| | - J Mullol
- 65Rhinology Unit and Smell Clinic, ENT Department, Hospital Clínic, University of Barcelona, Barcelona, Spain.,66Clinical and Experimental Respiratory Immunoallergy, IDIBAPS, CIBERES, University of Barcelona, Barcelona, Spain
| | - T Haahtela
- 67Skin and Allergy Hospital, Helsinki University Hospital, Helsinki, Finland
| | - J Salimäki
- Association of Finnish Pharmacists, Helsinki, Finland
| | - S Toppila-Salmi
- 67Skin and Allergy Hospital, Helsinki University Hospital, Helsinki, Finland
| | - E Valovirta
- 69Department of Lung Diseases and Clinical Immunology, University of Turku, Turku, Finland.,Terveystalo Allergy Clinic, Turku, Finland
| | - B Gemicioğlu
- 71Department of Pulmonary Diseases, Cerrahpasa Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - A Yorgancioglu
- 72Department of Pulmonary Diseases, Faculty of Medicine, Celal Bayar University, Manisa, Turkey.,GARD Executive Committee, Manisa, Turkey
| | - N Papadopoulos
- 74Center for Pediatrics and Child Health, Institute of Human Development, Royal Manchester Children's Hospital, University of Manchester, Manchester, UK.,75Allergy Department, 2nd Pediatric Clinic, Athens General Children's Hospital "P&A Kyriakou", University of Athens, 11527 Athens, Greece
| | - E P Prokopakis
- 76Department of Otorhinolaryngology, University of Crete School of Medicine, Heraklion, Greece
| | - S Bosnic-Anticevich
- Woolcock Institute of Medical Research, University of Sydney and Sydney Local Health District, Glebe, NSW Australia
| | - R O'Hehir
- 78Department of Allergy, Immunology and Respiratory Medicine, Alfred Hospital and Central Clinical School, Monash University, Melbourne, VIC Australia.,79Department of Immunology, Monash University, Melbourne, VIC Australia
| | - J C Ivancevich
- Servicio de Alergia e Immunologia, Clinica Santa Isabel, Buenos Aires, Argentina
| | - H Neffen
- Director of Center of Allergy, Immunology and Respiratory Diseases, Santa Fe, Argentina Center for Allergy and Immunology, Santa Fe, Argentina
| | - E Zernotti
- 82Universidad Católica de Córdoba, Córdoba, Argentina
| | - I Kull
- 83Department of Clinical Science and Education, Karolinska Institutet, Södersjukhuset, Stockholm, Sweden
| | - E Melen
- 84Sachs' Children and Youth Hospital, Södersjukhuset, Stockholm, Sweden.,85Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - M Wickman
- 86Centre for Clinical Research Sörmland, Uppsala University, Eskilstuna, Sweden
| | - C Bachert
- 87Upper Airways Research Laboratory, ENT Department, Ghent University Hospital, Ghent, Belgium
| | - P Hellings
- Euforea, Brussels, Belgium.,88Department of Otorhinolaryngology, Univ Hospitals Leuven, Louvain, Belgium.,89Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - S Palkonen
- 90EFA European Federation of Allergy and Airways Diseases Patients' Associations, Brussels, Belgium
| | - C Bindslev-Jensen
- Department of Dermatology and Allergy Centre, Odense University Hospital, Odense Research Center for Anaphylaxis (ORCA), Odense, Denmark
| | - E Eller
- Department of Dermatology and Allergy Centre, Odense University Hospital, Odense Research Center for Anaphylaxis (ORCA), Odense, Denmark
| | - S Waserman
- 92Department of Medicine, Clinical Immunology and Allergy, McMaster University, Hamilton, ON Canada
| | - M Sova
- 93University Hospital Olomouc, Olomouc, Czech Republic
| | - G De Vries
- Peercode BV, Geldermalsen, The Netherlands
| | - M van Eerd
- Peercode BV, Geldermalsen, The Netherlands
| | - I Agache
- 95Faculty of Medicine, Transylvania University, Brasov, Romania
| | - T Casale
- 96Division of Allergy/Immunology, University of South Florida, Tampa, USA
| | - M Dykewickz
- 97Section of Allergy and Immunology, Saint Louis University School of Medicine, Saint Louis, MO USA
| | - R N Naclerio
- 98Johns Hopkins School of Medicine, Baltimore, MD USA
| | - Y Okamoto
- 99Department of Otorhinolaryngology, Chiba University Hospital, Chiba, Japan
| | - D V Wallace
- 100Nova Southeastern University, Fort Lauderdale, Florida USA
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5
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Amat F, Tallon P, Foray AP, Michaud B, Lambert N, Saint-Pierre P, Chatenoud L, Just J. Control of asthma by omalizumab: the role of CD4 + Foxp3 + regulatory T cells. Clin Exp Allergy 2018; 46:1614-1616. [PMID: 27770456 DOI: 10.1111/cea.12839] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- F Amat
- Department of Allergology - Centre de l'Asthme et des Allergies, Hôpital d'Enfants Armand Trousseau, Assistance Publique-Hôpitaux de Paris, Paris, France.,UPMC Univ Paris 06, Sorbonne Universités, Paris, France.,Equipe EPAR, Institut Pierre Louis d'Epidémiologie et de Santé Publique, UMR_S1136, INSERM, Paris, France
| | - P Tallon
- Department of Allergology - Centre de l'Asthme et des Allergies, Hôpital d'Enfants Armand Trousseau, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - A P Foray
- Institut national de la santé et de la recherche médicale, Unité 1151, INSERM, Paris, France.,Sorbonne Paris Cité, Faculté de Médecine, Université Paris Descartes, Paris, France
| | - B Michaud
- Department of Allergology - Centre de l'Asthme et des Allergies, Hôpital d'Enfants Armand Trousseau, Assistance Publique-Hôpitaux de Paris, Paris, France.,Institut national de la santé et de la recherche médicale, Unité 1151, INSERM, Paris, France
| | - N Lambert
- Department of Allergology - Centre de l'Asthme et des Allergies, Hôpital d'Enfants Armand Trousseau, Assistance Publique-Hôpitaux de Paris, Paris, France.,Equipe EPAR, Institut Pierre Louis d'Epidémiologie et de Santé Publique, UMR_S1136, INSERM, Paris, France
| | - P Saint-Pierre
- Equipe EPAR, Institut Pierre Louis d'Epidémiologie et de Santé Publique, UMR_S1136, INSERM, Paris, France.,Institut de Mathématiques de Toulouse, Université Toulouse III Paul Sabatier, Toulouse, France
| | - L Chatenoud
- Institut national de la santé et de la recherche médicale, Unité 1151, INSERM, Paris, France.,Sorbonne Paris Cité, Faculté de Médecine, Université Paris Descartes, Paris, France
| | - J Just
- Department of Allergology - Centre de l'Asthme et des Allergies, Hôpital d'Enfants Armand Trousseau, Assistance Publique-Hôpitaux de Paris, Paris, France.,UPMC Univ Paris 06, Sorbonne Universités, Paris, France.,Equipe EPAR, Institut Pierre Louis d'Epidémiologie et de Santé Publique, UMR_S1136, INSERM, Paris, France
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6
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Amat F, Soria A, Tallon P, Bourgoin-Heck M, Lambert N, Deschildre A, Just J. New insights into the phenotypes of atopic dermatitis linked with allergies and asthma in children: An overview. Clin Exp Allergy 2018; 48:919-934. [PMID: 29676818 DOI: 10.1111/cea.13156] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Revised: 02/05/2018] [Accepted: 04/01/2018] [Indexed: 01/09/2023]
Abstract
Atopic dermatitis (AD) is a complex disease with multiple causes and complex mechanistic pathways according to age of onset, severity of the illness, ethnic modifiers, response to therapy and triggers. A group of difficult-to-manage patients characterized by early-onset AD and severe lifelong disease associated with allergic asthma and/or food allergy (FA) has been identified. In this study, we focus on these severe phenotypes, analysing their links with other atopic comorbidities, and taking into account the results from recent cohort studies and meta-analyses. The main hypothesis that is currently proposed to explain the onset of allergic diseases is an epithelial barrier defect. Thus, the atopic march could correspond to an epithelial dysfunction, self-sustained by a secondary allergenic sensitization, explaining the transition from AD to allergic asthma. Furthermore, AD severity seems to be a risk factor for associated FA. Results from population-based, birth and patient cohorts show that early-onset and severe AD, male gender, parental history of asthma, and early and multiple sensitizations are risk factors leading to the atopic march and the development of asthma. The importance of environmental factors should be recognized in these high-risk children and prevention programs adapted accordingly. Effective targeted therapies to restore both barrier function and to control inflammation are necessary; early emollient therapy is an important approach to prevent AD in high-risk children. Clinicians should also keep in mind the specific risk of atopic comorbidities in case of filaggrin loss-of-function mutations and the rare phenotypes of orphan syndromes due to heritable mutations in skin barrier components.
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Affiliation(s)
- F Amat
- Department of Allergology, Centre de l'Asthme et des Allergies, Hôpital d'Enfants Armand Trousseau, Assistance Publique-Hôpitaux de Paris, Paris, France.,UPMC Univ Paris 06, Sorbonne Universités, Paris, France.,Equipe EPAR, Institut Pierre Louis d'Epidémiologie et de Santé Publique, UMR_S1136, INSERM, Paris, France
| | - A Soria
- UPMC Univ Paris 06, Sorbonne Universités, Paris, France.,Department of Dermatology and Allergology, Hôpital Tenon, APHP Paris, Paris, France.,Inserm, Centre d'Immunologie et des Maladies Infectieuses (Cimi-Paris), UMR 1135, Paris, France
| | - P Tallon
- Department of Allergology, Centre de l'Asthme et des Allergies, Hôpital d'Enfants Armand Trousseau, Assistance Publique-Hôpitaux de Paris, Paris, France.,UPMC Univ Paris 06, Sorbonne Universités, Paris, France
| | - M Bourgoin-Heck
- Department of Allergology, Centre de l'Asthme et des Allergies, Hôpital d'Enfants Armand Trousseau, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - N Lambert
- Department of Allergology, Centre de l'Asthme et des Allergies, Hôpital d'Enfants Armand Trousseau, Assistance Publique-Hôpitaux de Paris, Paris, France.,Equipe EPAR, Institut Pierre Louis d'Epidémiologie et de Santé Publique, UMR_S1136, INSERM, Paris, France
| | - A Deschildre
- Pediatric Pulmonology and Allergy Department, Hôpital Jeanne de Flandre, CHRU Lille, Lille, France
| | - J Just
- Department of Allergology, Centre de l'Asthme et des Allergies, Hôpital d'Enfants Armand Trousseau, Assistance Publique-Hôpitaux de Paris, Paris, France.,UPMC Univ Paris 06, Sorbonne Universités, Paris, France.,Equipe EPAR, Institut Pierre Louis d'Epidémiologie et de Santé Publique, UMR_S1136, INSERM, Paris, France
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7
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Deschildre A, Lejeune S, Cap M, Flammarion S, Jouannic L, Amat F, Just J. Food allergy phenotypes: The key to personalized therapy. Clin Exp Allergy 2018; 47:1125-1137. [PMID: 28710890 DOI: 10.1111/cea.12984] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Food allergies (FAs) are of increasing public health concern and are characterized by a large spectrum of diseases. Their diversity is well known for immunologic pathways (IgE, non-IgE-mediated FAs) and natural history. Many other factors and patient characteristics are involved including type of food, exposure route, allergic comorbidities, gender, racial and ethnic backgrounds, cofactors and health conditions. Food allergen components and sensitization profiles are also involved in FA phenotypes. A new approach to chronic disorders based on the identification of phenotypes through extensive knowledge of all the complex components is also applicable to FAs and could lead towards integrative care management. Diagnostic biomarkers for FAs are emerging which also contribute to better care modalities. The aim of this article was to highlight current knowledge regarding the phenotypic diversity of FA. This review will focus on IgE-mediated FAs and how identifying phenotypes may help to better understand the pathophysiological complexity, improve diagnosis and lead to personalized treatment strategies.
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Affiliation(s)
- A Deschildre
- CHU Lille, Pediatric Pulmonology and Allergy unit, Hôpital Jeanne de Flandre, Université Nord de France, Lille, France
| | - S Lejeune
- CHU Lille, Pediatric Pulmonology and Allergy unit, Hôpital Jeanne de Flandre, Université Nord de France, Lille, France
| | - M Cap
- CHU Lille, Pediatric Pulmonology and Allergy unit, Hôpital Jeanne de Flandre, Université Nord de France, Lille, France
| | - S Flammarion
- CHU Lille, Pediatric Pulmonology and Allergy unit, Hôpital Jeanne de Flandre, Université Nord de France, Lille, France
| | - L Jouannic
- Nutrition Department, CHU Lille, Hôpital Jeanne de Flandre, Lille, France
| | - F Amat
- Asthma and Allergy Center, Hôpital d'Enfants Armand, Sorbonne Universités, UPMC Univ Paris 06 - Institut Pierre Louis d'Epidémiologie et de Santé Publique, Paris, France
| | - J Just
- Asthma and Allergy Center, Hôpital d'Enfants Armand, Sorbonne Universités, UPMC Univ Paris 06 - Institut Pierre Louis d'Epidémiologie et de Santé Publique, Paris, France
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8
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Bourgoin-Heck M, Amat F, Trouvé C, Bernard A, Magny JP, Lambert N, Just J. Omalizumab could be effective in children with severe eosinophilic non-allergic asthma. Pediatr Allergy Immunol 2018; 29:90-93. [PMID: 28981968 DOI: 10.1111/pai.12813] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- M Bourgoin-Heck
- Department of Allergology-Centre de l'Asthme et des Allergies, Hôpital d'Enfants Armand Trousseau, Assistance Publique-Hôpitaux de Paris, Paris, France.,UPMC Univ Paris 06, Sorbonne Universités, Paris, France.,Equipe EPAR, Institut Pierre Louis d'Epidémiologie et de Santé Publique, UMR_S1136, INSERM, Paris, France
| | - F Amat
- Department of Allergology-Centre de l'Asthme et des Allergies, Hôpital d'Enfants Armand Trousseau, Assistance Publique-Hôpitaux de Paris, Paris, France.,UPMC Univ Paris 06, Sorbonne Universités, Paris, France.,Equipe EPAR, Institut Pierre Louis d'Epidémiologie et de Santé Publique, UMR_S1136, INSERM, Paris, France
| | - C Trouvé
- Department of Allergology-Centre de l'Asthme et des Allergies, Hôpital d'Enfants Armand Trousseau, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - A Bernard
- Department of Allergology-Centre de l'Asthme et des Allergies, Hôpital d'Enfants Armand Trousseau, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - J-P Magny
- Department of Allergology-Centre de l'Asthme et des Allergies, Hôpital d'Enfants Armand Trousseau, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - N Lambert
- Department of Allergology-Centre de l'Asthme et des Allergies, Hôpital d'Enfants Armand Trousseau, Assistance Publique-Hôpitaux de Paris, Paris, France.,UPMC Univ Paris 06, Sorbonne Universités, Paris, France.,Equipe EPAR, Institut Pierre Louis d'Epidémiologie et de Santé Publique, UMR_S1136, INSERM, Paris, France
| | - J Just
- Department of Allergology-Centre de l'Asthme et des Allergies, Hôpital d'Enfants Armand Trousseau, Assistance Publique-Hôpitaux de Paris, Paris, France.,UPMC Univ Paris 06, Sorbonne Universités, Paris, France.,Equipe EPAR, Institut Pierre Louis d'Epidémiologie et de Santé Publique, UMR_S1136, INSERM, Paris, France
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9
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Amat F, Kouche C, Gaspard W, Lemoine A, Guiddir T, Lambert N, Zakariya M, Ridray C, Nemni A, Saint-Pierre P, Deschildre A, Couderc R, Just J. Is a slow-progression baked milk protocol of oral immunotherapy always a safe option for children with cow's milk allergy? A randomized controlled trial. Clin Exp Allergy 2017; 47:1491-1496. [DOI: 10.1111/cea.13022] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [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)
- F. Amat
- Department of Allergology; Centre de l'Asthme et des Allergies; Hôpital d'Enfants; Armand Trousseau; Assistance Publique-Hôpitaux de Paris; Paris France
- UPMC Univ Paris 06; Sorbonne Universités; Paris France
- Equipe EPAR; Institut Pierre Louis d'Epidémiologie et de Santé Publique; UMR_S1136, INSERM; Paris France
| | - C. Kouche
- Department of Allergology; Centre de l'Asthme et des Allergies; Hôpital d'Enfants; Armand Trousseau; Assistance Publique-Hôpitaux de Paris; Paris France
| | - W. Gaspard
- Department of Allergology; Centre de l'Asthme et des Allergies; Hôpital d'Enfants; Armand Trousseau; Assistance Publique-Hôpitaux de Paris; Paris France
| | - A. Lemoine
- Department of Allergology; Centre de l'Asthme et des Allergies; Hôpital d'Enfants; Armand Trousseau; Assistance Publique-Hôpitaux de Paris; Paris France
| | - T. Guiddir
- Department of Allergology; Centre de l'Asthme et des Allergies; Hôpital d'Enfants; Armand Trousseau; Assistance Publique-Hôpitaux de Paris; Paris France
- UPMC Univ Paris 06; Sorbonne Universités; Paris France
| | - N. Lambert
- Department of Allergology; Centre de l'Asthme et des Allergies; Hôpital d'Enfants; Armand Trousseau; Assistance Publique-Hôpitaux de Paris; Paris France
| | - M. Zakariya
- Department of Allergology; Centre de l'Asthme et des Allergies; Hôpital d'Enfants; Armand Trousseau; Assistance Publique-Hôpitaux de Paris; Paris France
| | - C. Ridray
- Department of Allergology; Centre de l'Asthme et des Allergies; Hôpital d'Enfants; Armand Trousseau; Assistance Publique-Hôpitaux de Paris; Paris France
| | - A. Nemni
- Department of Allergology; Centre de l'Asthme et des Allergies; Hôpital d'Enfants; Armand Trousseau; Assistance Publique-Hôpitaux de Paris; Paris France
| | - P. Saint-Pierre
- Equipe EPAR; Institut Pierre Louis d'Epidémiologie et de Santé Publique; UMR_S1136, INSERM; Paris France
- Institut de Mathématiques de Toulouse; Université Toulouse III Paul Sabatier; Toulouse France
| | - A. Deschildre
- Laboratory of Molecular Biology; Hôpital d'Enfants Armand Trousseau; Assistance Publique-Hôpitaux de Paris; Paris France
| | - R. Couderc
- CHRU Lille; Pediatric Pulmonology and Allergy Department; Hôpital Jeanne de Flandre; Lille France
| | - J. Just
- Department of Allergology; Centre de l'Asthme et des Allergies; Hôpital d'Enfants; Armand Trousseau; Assistance Publique-Hôpitaux de Paris; Paris France
- UPMC Univ Paris 06; Sorbonne Universités; Paris France
- Equipe EPAR; Institut Pierre Louis d'Epidémiologie et de Santé Publique; UMR_S1136, INSERM; Paris France
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10
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Just J, Bourgoin-Heck M, Amat F. Cover Image. Clin Exp Allergy 2017. [DOI: 10.1111/cea.12969] [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: 11/28/2022]
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11
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Abstract
Asthma is a heterogeneous disease characterized by numerous phenotypes relating to age of onset, triggers, comorbidities, severity (assessed by multiple exacerbations, lung function pattern) and finally the inflammatory cells involved in the pathophysiologic pathway. These phenotypes can vary over time in relation to changes in the principal triggers involved in the aetiology of the disease. Nevertheless, in a patient with multiple allergies and early-onset disease (defined as multiple sensitizations and allergic comorbidities), the prognosis of asthma is poor with a high risk of persistence and severity of the disease during childhood. Future research will focus on classifying phenotypes into groups based on pathophysiologic mechanisms (endotypes) and the biomarkers attached to these endotypes, which could predict prognosis and lead to targeted therapy. Currently, these biomarkers are related to inflammatory cells associated with the asthma endotype, essentially eosinophils and neutrophils (and related cytokines) attached to Th-2 and non Th-1 pathways, respectively. The most severe asthma (refractory asthma) is linked to neutrophil-derived inflammation (frequently associated with female sex, obesity and possibly disorganized airway microbiota) encountered in very young children or teenagers. Severe asthma is also linked to or a marked eosinophil inflammatory process (frequently associated with multiple atopy and, more rarely, with non-atopic hypereosinophilic asthma in children) and frequently encountered in teenagers. Severe phenotypes of asthma could also play a role in the origin of chronic obstructive pulmonary disease in adult life.
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Affiliation(s)
- J Just
- Service d'Allergologie, Centre de l'Asthme et des Allergies, AP-HP, Groupe hospitalier Trousseau-La Roche Guyon, Paris, France.,EPAR, UMR-S 1136 INSERM & UPMC Paris6, Université Paris Pierre et Marie Curie, Paris, France
| | - M Bourgoin-Heck
- Service d'Allergologie, Centre de l'Asthme et des Allergies, AP-HP, Groupe hospitalier Trousseau-La Roche Guyon, Paris, France.,EPAR, UMR-S 1136 INSERM & UPMC Paris6, Université Paris Pierre et Marie Curie, Paris, France
| | - F Amat
- Service d'Allergologie, Centre de l'Asthme et des Allergies, AP-HP, Groupe hospitalier Trousseau-La Roche Guyon, Paris, France.,EPAR, UMR-S 1136 INSERM & UPMC Paris6, Université Paris Pierre et Marie Curie, Paris, France
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12
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Doan S, Amat F, Gabison E, Just J, Cochereau I. Experience with the monoclonal anti IgE antibody Omalizumab in severe refractory vernal keratoconjunctivitis in children. Acta Ophthalmol 2015. [DOI: 10.1111/j.1755-3768.2015.0525] [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: 11/25/2022]
Affiliation(s)
- S. Doan
- Ophthalmology; Hopital Bichat and Fondation A de Rothschild; Paris France
| | - F. Amat
- Allergology; Hopital Trousseau; Paris France
| | - E. Gabison
- Ophthalmology; Hopital Bichat and Fondation A de Rothschild; Paris France
| | - J. Just
- Allergology; Hopital Trousseau; Paris France
| | - I. Cochereau
- Ophthalmology; Hopital Bichat and Fondation A de Rothschild; Paris France
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13
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Just J, Saint Pierre P, Amat F, Gouvis-Echraghi R, Lambert-Guillemot N, Guiddir T, Annesi Maesano I. What lessons can be learned about asthma phenotypes in children from cohort studies? Pediatr Allergy Immunol 2015; 26:300-5. [PMID: 25703953 DOI: 10.1111/pai.12359] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/18/2015] [Indexed: 01/01/2023]
Abstract
'Phenotyping' asthma by multivariate analyses and more recently by unsupervised analysis has been performed in children cohorts. We describe the key findings that have emerged from these cohorts. It would appear that there are three wheeze phenotypes in children of preschool age: the mild episodic viral wheeze phenotype; the multitrigger atopic wheeze; and, less often encountered, the severe non-atopic wheeze. Early onset of allergy in asthma (more prevalent in boys) is associated with poor prognosis unlike the severe non-atopic wheeze phenotype which has a female predominance. The prognosis of the severe non-atopic wheeze depends on time of onset (early or late) of allergic expression. At school age, the risk of severe asthmatic exacerbations is associated with eosinophil predominant inflammation frequently related to allergic asthma, whereas neutrophil inflammation is associated with moderate-to-severe asthma with poorer lung function. Nevertheless, allergic asthma is also a heterogeneous disease with a severe allergic phenotype strongly associated with atopic dermatitis and very high eosinophil-driven inflammatory markers. Further studies are required to find non-invasive biological markers in very young children to better define wheezing phenotypes associated with an elevated risk of developing severe asthma with a view to personalizing treatment.
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Affiliation(s)
- J Just
- Allergology Department, Centre de l'Asthme et des Allergies. Hôpital d'Enfants Armand-Trousseau (APHP) -, APHP, Paris 75012, France.,Sorbonne Universités, UPMC Univ Paris 06, UMR_S 1136, Institut Pierre Louis d'Epidémiologie et de Santé Publique, Equipe EPAR, Paris, France
| | - P Saint Pierre
- Laboratoire de statistiques théoriques et appliquées, Université Pierre et Marie Curie - Paris 06, Paris, France
| | - F Amat
- Allergology Department, Centre de l'Asthme et des Allergies. Hôpital d'Enfants Armand-Trousseau (APHP) -, APHP, Paris 75012, France.,Sorbonne Universités, UPMC Univ Paris 06, UMR_S 1136, Institut Pierre Louis d'Epidémiologie et de Santé Publique, Equipe EPAR, Paris, France
| | - R Gouvis-Echraghi
- Allergology Department, Centre de l'Asthme et des Allergies. Hôpital d'Enfants Armand-Trousseau (APHP) -, APHP, Paris 75012, France
| | - N Lambert-Guillemot
- Allergology Department, Centre de l'Asthme et des Allergies. Hôpital d'Enfants Armand-Trousseau (APHP) -, APHP, Paris 75012, France.,Sorbonne Universités, UPMC Univ Paris 06, UMR_S 1136, Institut Pierre Louis d'Epidémiologie et de Santé Publique, Equipe EPAR, Paris, France
| | - T Guiddir
- Allergology Department, Centre de l'Asthme et des Allergies. Hôpital d'Enfants Armand-Trousseau (APHP) -, APHP, Paris 75012, France.,Sorbonne Universités, UPMC Univ Paris 06, UMR_S 1136, Institut Pierre Louis d'Epidémiologie et de Santé Publique, Equipe EPAR, Paris, France
| | - I Annesi Maesano
- Sorbonne Universités, UPMC Univ Paris 06, UMR_S 1136, Institut Pierre Louis d'Epidémiologie et de Santé Publique, Equipe EPAR, Paris, France
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14
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Varó I, Redón S, Garcia-Roger EM, Amat F, Guinot D, Serrano R, Navarro JC. Aquatic pollution may favor the success of the invasive species A. franciscana. Aquat Toxicol 2015; 161:208-20. [PMID: 25723047 DOI: 10.1016/j.aquatox.2015.02.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Revised: 02/11/2015] [Accepted: 02/17/2015] [Indexed: 05/06/2023]
Abstract
The genus Artemia consists of several bisexual and parthenogenetic sibling species. One of them, A. franciscana, originally restricted to the New World, becomes invasive when introduced into ecosystems out of its natural range of distribution. Invasiveness is anthropically favored by the use of cryptobiotic eggs in the aquaculture and pet trade. The mechanisms of out-competition of the autochthonous Artemia by the invader are still poorly understood. Ecological fitness may play a pivotal role, but other underlying biotic and abiotic factors may contribute. Since the presence of toxicants in hypersaline aquatic ecosystems has been documented, our aim here is to study the potential role of an organophosphate pesticide, chlorpyrifos, in a congeneric mechanism of competition between the bisexual A. franciscana (AF), and one of the Old World parthenogenetic siblings, A. parthenogenetica (PD). For this purpose we carried out life table experiments with both species, under different concentrations of the toxicant (0.1, 1 and 5μg/l), and analyzed the cholinesterase inhibition at different developmental stages. The results evidence that both, AF and PD, showed an elevated tolerance to high ranges of chlorpyrifos, but AF survived better and its fecundity was less affected by the exposure to the pesticide than that of PD. The higher fecundity of AF is a selective advantage in colonization processes leading to its establishment as NIS. Besides, under the potential selective pressure of abiotic factors, such as the presence of toxicants, its higher resistance in terms of survival and biological fitness also indicates out-competitive advantages.
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Affiliation(s)
- I Varó
- Instituto de Acuicultura Torre de la Sal (IATS-CSIC), Ribera de Cabanes, Castellón 12595 Spain.
| | - S Redón
- Instituto de Acuicultura Torre de la Sal (IATS-CSIC), Ribera de Cabanes, Castellón 12595 Spain
| | - E M Garcia-Roger
- Cavanilles Institute of Biodiversity and Evolutionary Biology, University of Valencia, Burjassot, Spain
| | - F Amat
- Instituto de Acuicultura Torre de la Sal (IATS-CSIC), Ribera de Cabanes, Castellón 12595 Spain
| | - D Guinot
- Instituto de Acuicultura Torre de la Sal (IATS-CSIC), Ribera de Cabanes, Castellón 12595 Spain
| | - R Serrano
- Research Institute for Pesticides and Water (IUPA), Avda. Sos Baynat, s/n. University Jaume I, Castellón 12071, Spain
| | - J C Navarro
- Instituto de Acuicultura Torre de la Sal (IATS-CSIC), Ribera de Cabanes, Castellón 12595 Spain
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15
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Roitberg ES, Eplanova GV, Kotenko TI, Amat F, Carretero MA, Kuranova VN, Bulakhova NA, Zinenko OI, Yakovlev VA. Geographic variation of life-history traits in the sand lizard, Lacerta agilis: testing Darwin's fecundity-advantage hypothesis. J Evol Biol 2015; 28:613-29. [PMID: 25627276 DOI: 10.1111/jeb.12594] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2014] [Revised: 01/15/2015] [Accepted: 01/20/2015] [Indexed: 11/27/2022]
Abstract
The fecundity-advantage hypothesis (FAH) explains larger female size relative to male size as a correlated response to fecundity selection. We explored FAH by investigating geographic variation in female reproductive output and its relation to sexual size dimorphism (SSD) in Lacerta agilis, an oviparous lizard occupying a major part of temperate Eurasia. We analysed how sex-specific body size and SSD are associated with two putative indicators of fecundity selection intensity (clutch size and the slope of the clutch size-female size relationship) and with two climatic variables throughout the species range and across two widespread evolutionary lineages. Variation within the lineages provides no support for FAH. In contrast, the divergence between the lineages is in line with FAH: the lineage with consistently female-biased SSD (L. a. agilis) exhibits higher clutch size and steeper fecundity slope than the lineage with an inconsistent and variable SSD (L. a. exigua). L. a. agilis shows lower offspring size (egg mass, hatchling mass) and higher clutch mass relative to female mass than L. a. exigua, that is both possible ways to enhance offspring number are exerted. As the SSD difference is due to male size (smaller males in L. a. agilis), fecundity selection favouring larger females, together with viability selection for smaller size in both sexes, would explain the female-biased SSD and reproductive characteristics of L. a. agilis. The pattern of intraspecific life-history divergence in L. agilis is strikingly similar to that between oviparous and viviparous populations of a related species Zootoca vivipara. Evolutionary implications of this parallelism are discussed.
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Affiliation(s)
- E S Roitberg
- Department of Biology, Institute of Integrated Sciences, University of Koblenz-Landau, Koblenz, Germany
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16
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Michaud B, Aroulandom J, Baiz N, Amat F, Gouvis-Echraghi R, Candon S, Foray AP, Couderc R, Bach JF, Chatenoud L, Just J. Casein-specific IL-4- and IL-13-secreting T cells: a tool to implement diagnosis of cow's milk allergy. Allergy 2014; 69:1473-80. [PMID: 25041079 DOI: 10.1111/all.12484] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/07/2014] [Indexed: 12/16/2022]
Abstract
BACKGROUND Cow's milk allergy (CMA) is a frequent food allergy in young children. The oral food challenge is the gold standard for diagnosis, and there is currently no reliable biological test. Our aim was to evaluate the diagnostic potential of a functional assay quantifying allergen-specific Th2 cells in CMA children. METHODS A total of 29 children aged 2.8-10.5 years underwent a double-blind, placebo-controlled food challenge (DBPCFC) to cow's milk. Blood was collected before performing the DBPCFC, and peripheral mononuclear cells were cultured in an 18-h ELISpot assay with casein, α-lactalbumin, or β-lactoglobulin. Numbers of antigen-specific IL-4- and IL-13-secreting lymphocytes and serum-specific IgE, IgG4, and total IgE levels were assessed. Receiver operating characteristic (ROC) curves were generated. RESULTS A total of 17 (59%) children reacted to cow's milk and were therefore considered as allergic to cow's milk (CMA). The mean number of casein-specific IL-4- and IL-13-secreting T cells was higher in CMA than in non-CMA children (P = 0.009, 0.004, respectively). Moreover, it was inversely correlated with the cumulative dose of cow's milk tolerated (P = 0.003, 0.0009, respectively). ROC curve of combined IL-4 and IL-13 analysis showed an area under the curve of 0.98 (95% CI 0.90-1.06). For a cutoff of 10 IL-4- and 12 IL-13-secreting T cells, sensitivity and negative predictive value were 100%. CONCLUSIONS Enumeration of casein-specific IL-4- and IL-13-secreting T cells appears a promising tool to improve diagnosis and, if confirmed in larger studies, could permit less frequent use of the oral food challenge.
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Affiliation(s)
- B. Michaud
- Institut National de la Santé et de la Recherche Médicale, Unité 1013; Paris France
- Université Paris Descartes; Sorbonne Paris Cité France
- Centre National de la Recherche Scientifique; UMR 8253; Paris France
| | - J. Aroulandom
- Département d'Allergologie; Hôpital Trousseau AP-HP-UPMC Paris 6; Paris France
| | - N. Baiz
- Département d'EPidémiology des Maladies Allergiques et Respiratoires (EPAR); UMR-S 707 INSERM, UPMC Paris 6; Paris France
| | - F. Amat
- Département d'Allergologie; Hôpital Trousseau AP-HP-UPMC Paris 6; Paris France
| | - R. Gouvis-Echraghi
- Département d'Allergologie; Hôpital Trousseau AP-HP-UPMC Paris 6; Paris France
| | - S. Candon
- Institut National de la Santé et de la Recherche Médicale, Unité 1013; Paris France
- Université Paris Descartes; Sorbonne Paris Cité France
- Centre National de la Recherche Scientifique; UMR 8253; Paris France
| | - A.-P. Foray
- Institut National de la Santé et de la Recherche Médicale, Unité 1013; Paris France
- Université Paris Descartes; Sorbonne Paris Cité France
- Centre National de la Recherche Scientifique; UMR 8253; Paris France
| | - R. Couderc
- Service de Biochimie et Biologie Moléculaire; Hôpital Trousseau AP-HP; Paris France
| | - J.-F. Bach
- Institut National de la Santé et de la Recherche Médicale, Unité 1013; Paris France
- Université Paris Descartes; Sorbonne Paris Cité France
- Centre National de la Recherche Scientifique; UMR 8253; Paris France
| | - L. Chatenoud
- Institut National de la Santé et de la Recherche Médicale, Unité 1013; Paris France
- Université Paris Descartes; Sorbonne Paris Cité France
- Centre National de la Recherche Scientifique; UMR 8253; Paris France
| | - J. Just
- Département d'Allergologie; Hôpital Trousseau AP-HP-UPMC Paris 6; Paris France
- Département d'EPidémiology des Maladies Allergiques et Respiratoires (EPAR); UMR-S 707 INSERM, UPMC Paris 6; Paris France
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Labbé A, Labbé G, Amat F. Traitement de fond de l’asthme Quand le diminuer et quand l’arrêter ? Arch Pediatr 2014. [DOI: 10.1016/s0929-693x(14)71534-9] [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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Maccari M, Gómez A, Hontoria F, Amat F. Functional rare males in diploid parthenogenetic Artemia. J Evol Biol 2013; 26:1934-48. [PMID: 23837914 DOI: 10.1111/jeb.12191] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [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: 09/07/2012] [Revised: 04/05/2013] [Accepted: 04/29/2013] [Indexed: 10/26/2022]
Abstract
Functional males that are produced occasionally in some asexual taxa - called 'rare males' - raise considerable evolutionary interest, as they might be involved in the origin of new parthenogenetic lineages. Diploid parthenogenetic Artemia produce rare males, which may retain the ability to mate with females of related sexual lineages. Here, we (i) describe the frequency of male progeny in populations of diploid parthenogenetic Artemia, (ii) characterize rare males morphologically, (iii) assess their reproductive role, using cross-mating experiments with sexual females of related species from Central Asia and characterize the F1 hybrid offspring viability and (iv) confirm genetically both the identity and functionality of rare males using DNA barcoding and microsatellite loci. Our result suggests that these males may have an evolutionary role through genetic exchange with related sexual species and that diploid parthenogenetic Artemia is a good model system to investigate the evolutionary transitions between sexual species and parthenogenetic strains.
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Affiliation(s)
- M Maccari
- Instituto de Acuicultura de Torre de la Sal Consejo Superior de Investigaciones Científicas, Ribera de Cabanes Castellón, Spain.
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Julian V, Pereira B, Labbé A, Amat F. [Characteristics of admissions to pediatric emergency departments for exacerbations of asthma. Assessment and prospects for improving prehospital care]. Rev Mal Respir 2013; 31:13-20. [PMID: 24461438 DOI: 10.1016/j.rmr.2013.04.021] [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] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2012] [Accepted: 04/05/2013] [Indexed: 11/17/2022]
Abstract
INTRODUCTION The frequency of emergency department visits for asthma is a major public health problem in pediatrics. The aim of this study is to establish the characteristics of children visiting pediatric emergency departments for acute asthma and to assess their therapeutic management prior to admission. METHODS A prospective clinical study performed during 3 months at the pediatric emergency department of the university teaching hospital of Clermont-Ferrand, of children aged 1 to 16 years admitted to the department with a clinical diagnosis of asthma exacerbation. RESULTS One hundred and forty-three patients were included in the study. Asthma crises were moderate to severe in 69.2% of cases (n=99). Initial therapeutic management prior to the admission to the emergency department was appropriate in 17.5% of cases (n=25). Most of the known asthmatic patients had not been followed up by a pediatric pulmonologist (n=56). A crisis protocol had been set up in 16.5% of cases (n=20). Exacerbations were more severe among younger patients (P=0.002) and economically disadvantaged children (P=0.025). CONCLUSIONS This study uncovers poor knowledge of the disease among asthmatic children and their families, and an insufficient awareness among health practitioners of current recommendations for the treatment of asthmatic children. Admissions to the emergency department for asthma could be partly avoided by improving diagnosis and therapeutic education.
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Affiliation(s)
- V Julian
- Service des urgences pédiatriques, université d'Auvergne-Clermont I, CHU-Estaing, 1, place Lucie-Aubrac, 63003 Clermont-Ferrand cedex 1, France.
| | - B Pereira
- Direction de la recherche clinique, unité de biostatistique, université d'Auvergne-Clermont I, CHU Gabriel-Montpied, Clermont-Ferrand, France
| | - A Labbé
- Service des urgences pédiatriques, université d'Auvergne-Clermont I, CHU-Estaing, 1, place Lucie-Aubrac, 63003 Clermont-Ferrand cedex 1, France
| | - F Amat
- Service des urgences pédiatriques, université d'Auvergne-Clermont I, CHU-Estaing, 1, place Lucie-Aubrac, 63003 Clermont-Ferrand cedex 1, France
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Amat F, Guillemot-Lambert N, Labbe A, Saint-Pierre P, Annesi-Maesano I, Just J. Déterminer le phénotype de l’asthme pour mieux le traiter. Arch Pediatr 2013. [DOI: 10.1016/s0929-693x(13)71386-1] [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: 10/26/2022]
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21
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Julian V, Biard M, Labbé A, Amat F. À propos de douleurs abdominales. Arch Pediatr 2012; 19:508, 526-7. [DOI: 10.1016/j.arcped.2012.02.021] [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: 08/23/2011] [Revised: 02/12/2012] [Accepted: 02/24/2012] [Indexed: 10/28/2022]
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22
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Julian V, Biard M, Labbé A, Amat F. Une invagination intestinale aiguë atypique. Arch Pediatr 2012. [DOI: 10.1016/j.arcped.2012.02.015] [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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23
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Sánchez MI, Rode NO, Flaven E, Redón S, Amat F, Vasileva GP, Lenormand T. Differential susceptibility to parasites of invasive and native species of Artemia living in sympatry: consequences for the invasion of A. franciscana in the Mediterranean region. Biol Invasions 2012. [DOI: 10.1007/s10530-012-0192-2] [Citation(s) in RCA: 10] [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: 10/28/2022]
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24
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Amat F. [Complications of bacterial rhino-sinusitis in children: a case report and a review of the literature]. Arch Pediatr 2010; 17:258-62. [PMID: 20133116 DOI: 10.1016/j.arcped.2009.11.012] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2009] [Revised: 08/06/2009] [Accepted: 11/06/2009] [Indexed: 01/05/2023]
Abstract
Acute sinusitis in children is a controversial issue in terms of its diagnostic criteria, classification and therapeutic management. A therapeutic delay can lead to complications if the cause is bacterial. Guidelines have been set, but they are not consensual in pediatrics. Complications of acute bacterial sinusitis are uncommon in children, but they can be extremely severe and cause high morbidity and mortality. Because of their rarity, they often are not identified early, exposing the patient to an unfavorable outcome. We report on a case of acute bacterial pan-sinusitis complicated with thrombophlebitis of the cavernous sinuses and meningitis in a 9-year-old child, in spite of early and adapted antibiotic therapy. The bacterial agent was Staphylococcus aureus, which had no resistance or toxin profile. The progression was favorable under intravenous antibiotic therapy and after bilateral sphenoidectomy. This case raises the question of the best therapy for acute bacterial sinusitis in pediatrics and the management of complications.
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Affiliation(s)
- F Amat
- Service des urgences pédiatriques, hôpital d'enfants Armand-Trousseau, 75012 Paris, France.
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25
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Muñoz J, Green AJ, Figuerola J, Amat F, Rico C. Characterization of polymorphic microsatellite markers in the brine shrimp Artemia (Branchiopoda, Anostraca). Mol Ecol Resour 2008; 9:547-50. [PMID: 21564689 DOI: 10.1111/j.1755-0998.2008.02360.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The brine shrimp Artemia is a complex genus containing sexual species and parthenogenetic lineages. Artemia franciscana is native to America and its cysts (diapausing eggs) are used worldwide as a food source in aquaculture. As a consequence, this anostracan has become an invasive species in many hypersaline aquatic ecosystems of other continents. Parthenogenetic Artemia lineages occur only in the Old World. Ten and five microsatellite markers were developed to characterize two populations for A. franciscana and two populations for diploid parthenogenetic Artemia, respectively. For A. franciscana the number of alleles ranged from 11 to 58 per locus, while for parthenogens the number of alleles ranged from three to 10. The levels of heterozygosity in A. franciscana and in parthenogens ranged from 0.115 to 0.976 and from 0.000 to 0.971, respectively. These microsatellite loci showed a high population assignment power, which will be useful for future studies of population genetics and invasive processes in Artemia.
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Affiliation(s)
- J Muñoz
- Department of Wetland Ecology, Estación Biológica de Doñana (CSIC), Pabellón del Perú, Avenida de María Luisa, s/n., 41013 Seville, Spain, Instituto de Acuicultura de Torre de la Sal (CSIC), Ribera de Cabanes, 12595 Castellón, Spain
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26
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Varó I, Amat F, Navarro JC. Acute toxicity of dichlorvos to Aphanius iberus (Cuvier & Valenciennes, 1846) and its anti-cholinesterase effects on this species. Aquat Toxicol 2008; 88:53-61. [PMID: 18433895 DOI: 10.1016/j.aquatox.2008.03.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2007] [Revised: 02/06/2008] [Accepted: 03/06/2008] [Indexed: 05/26/2023]
Abstract
This study evaluates the toxic effects of the organophosphate pesticide (OP) dichlorvos to the endangered Iberian toothcarp (Aphanius iberus). To this end, the lethal toxicity of dichlorvos based on 96h-LC50 bioassays was determined in saline water (50g/L), and in vivo effects of dichlorvos on cholinesterase (ChE) activity were investigated in adult female and male specimens. The 96h-LC50 value determined by probit analysis was 3.17mg/L (95% confidence limits: 1.34-3.97). The characterisation of the ChE using different substrates and specific inhibitors was also carried out in head and muscle tissues. Acetylthiocholine was the substrate preferred by both head and muscle ChE in males and females. Eserine sulphate and BW284C51 significantly inhibited both head and muscle enzyme activity at low concentrations (muM range), and iso-OMPA had no significant effect. These results indicate that in the head and muscle the predominant ChE form is acetylcholinesterase (AChE) for both sexes. The kinetic parameters for ChE activity (Km and Vmax) were similar in both sexes. The 96h-LC50 value obtained for adult specimens of Iberian toothcarp was 3.17mg/L. ChE activity in head and body tissues of both sexes was significantly inhibited in all concentrations tested (0.5, 1, 2 and 4mg/L) after "in vivo" dichlorvos exposure. However, Iberian toothcarp was able to tolerate high concentrations of dichlorvos, and resist high levels of brain and muscle ChE inhibition without mortality. Both ChE inhibition and recovery followed a similar time-course pattern in response to sub-lethal exposure to dichlorvos (1mg/L), and the enzyme activity did not return to control levels after 96h in clean water. The results of this study show that ChE activity is a good biomarker of exposure to OP in the Iberian toothcarp adults.
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Affiliation(s)
- I Varó
- Departamento de Biología Funcional y Antropología Física, Facultad de Ciencias Biológicas, Universidad de Valencia, C/ Doctor Moliner s/n, Burjasot, Valencia, Spain
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Varó I, Amat F, Navarro JC, Barreda M, Pitarch E, Serrano R. Assessment of the efficacy of Artemia sp (Crustacea) cysts chorion as barrier to chlorpyrifos (organophosphorus pesticide) exposure. Effect on hatching and survival. Sci Total Environ 2006; 366:148-53. [PMID: 16797674 DOI: 10.1016/j.scitotenv.2005.10.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2005] [Revised: 10/03/2005] [Accepted: 10/07/2005] [Indexed: 05/10/2023]
Abstract
In order to reveal the efficacy of the Artemia cysts chorion as barrier to the organophosphorus pesticide chlorpyrifos, whole and decapsulated cysts have been exposed to 10 mg L(-1) chlorpyrifos in sea water during hydration and hatching phase, separately. The concentration of chlorpyrifos in capsulated and decapsulated cysts after exposure has been determined in order to elucidate the efficacy of chorion as protection to the embryo. The results obtained demonstrate the ability of the cysts chorion to obstruct the pass of chlorpyrifos molecules through this protection structure. Thus, the concentration of chlorpyrifos in exposed decapsulated cysts is higher than in exposed whole cysts. Moreover, after removing the chorion of exposed cysts, the concentration of chlorpyrifos in the embryo was lower than that of cysts exposed, what would demonstrate the retention of chlorpyrifos molecules by the shell. Hatching was not severely affected by exposure to the insecticide whereas survival at 44 h of the nauplii exposed to chlorpyrifos was significantly different from the controls. Survival of nauplii hatched from exposed decapsulated cysts was higher than that from those hatched from exposed whole cysts, probably because of the lower vitality of the latter, due to depletion of energy reserves during hatching.
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Affiliation(s)
- I Varó
- Departamento Biología Funcional y Antropología Física, Facultad de Ciencias Biológicas, Universitat de València, C/ Dr. Moliner 50, 46100 Burjassot, Valencia, Spain
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Sarabia R, Varó I, Amat F, Pastor A, del Ramo J, Díaz-Mayans J, Torreblanca A. Comparative toxicokinetics of cadmium in Artemia. Arch Environ Contam Toxicol 2006; 50:111-20. [PMID: 16237493 DOI: 10.1007/s00244-005-7026-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2005] [Accepted: 06/01/2005] [Indexed: 05/04/2023]
Abstract
The toxicokinetics of cadmium was determined for five populations belonging to four species of Artemia (A. salina, A. parthenogenetica, A. franciscana, and A. persimilis) using a bicompartmental model. The effects of sublethal cadmium concentration on the kinetic parameters in A. parthenogenetica were determined. The BCF values are inversely related to the concentration, as is the uptake rate (ku), whilst the elimination rate (ke) constant seems to be directly related to the exposure concentration. Values corresponding to the rate of metal influx (I) remain relatively constant (0.2477 to 0.4455 microg/g.h) in the concentration range from 0.1 to 1 mg Cd/L, and are higher (1.098 microg/g.h) at an exposure to 10 mg Cd/L. The cadmium accumulation pattern seems well conserved in the genus and is characterized by a fast elimination of the metal with Ke ranging from 0.0050 to 0.0231 h(-1). A. persimilis displays a different model to that corresponding to the other studied species exposed to the same cadmium concentration, presenting a low uptake rate constant (1.0564 mL/g. h) and a low BCF (211.3 mL/g).
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Affiliation(s)
- R Sarabia
- Department of Functional Biology, University of Valencia, Dr. Moliner 50, Burjassot, Valencia 46100, Spain
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Abstract
Maternal effects can have environmental or genetic causes. A method that can be used to demonstrate the genetic basis of a maternal effect is to look for grandfather effects in a backcross following reciprocal crosses. The absence of a grandfather effect would exclude a chromosomal basis for the maternal effect when the male sex is heterogametic (XX-XY sex determination system). However, in organisms in which the female is heterogametic (ZW-ZZ sex determination system), the absence of a grandfather effect does not rule out a chromosomal basis of the maternal effect, since the genes responsible for that effect can be located in the W chromosome, which is transmitted matrilineally. Conversely, the absence of a grandfather effect would point to a W-chromosome basis for the trait, provided that a maternal effect has been previously demonstrated. Distinguishing between W-located and autosome or Z-located maternal effects is important to understand the evolutionary dynamics of a trait. Here we report on a study of the chromosomal basis of maternal effects on two life-history traits related to encystment in the branchiopod crustacean Artemia franciscana, in which females are heterogametic. We performed crosses of two populations that differ in the number of cysts they produce. The proportion of encysted broods showed a maternal effect and was not affected by the grandfather's genotype, pointing to a W-chromosome basis. The average number of encysted offspring per brood showed a strong paternal effect and also a slight maternal effect. This trait also showed a grandfather effect, which suggests that the geographical variation has an autosomal or Z-chromosomal basis.
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Affiliation(s)
- C Saavedra
- Instituto de Acuicultura de Torre la Sal, CSIC, Ribera de Cabanes, 12595 Castellón, Spain.
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30
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Varó I, Navarro JC, Amat F, Guilhermino L. Characterisation of cholinesterases and evaluation of the inhibitory potential of chlorpyrifos and dichlorvos to Artemia salina and Artemia parthenogenetica. Chemosphere 2002; 48:563-569. [PMID: 12143930 DOI: 10.1016/s0045-6535(02)00075-9] [Citation(s) in RCA: 36] [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] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
In this study, the acute toxicity of the organophosphorous pesticides dichlorvos and chlorpyrifos to two different species of Artemia (A. salina and A. parthenogenetica) was evaluated. In addition, the in vivo effect of these two pesticides on cholinesterase (ChE) activity of both A. salina and A. parthenogenetica was also determined. The characterisation of the ChE, using different substrates and specific inhibitors, and the normal range of activity in non-exposed individuals were previously investigated for both species. The results obtained indicate that the ChE of A. salina is different from that of A. parthenogenetica and that both enzymes cannot be classified neither as acetylcholinesterase nor as butyrylcholinesterase since they show intermediary characteristics between the two vertebrate forms. The range of normal ChE activity was 2.65+/-0.15 U/mg protein for A. salina, and 3.69+/-0.17 U/mg protein for A. parthenogenetica. Significant in vivo effects of both pesticides on Artemia ChE activity were found, at concentrations between 5.38 and 9.30 mg/l for dichlorvos and between 1.85 and 3.19 mg/l for chlorpyrifos. Both Artemia species are resistant to these pesticides and they are able to survive with more than 80% ChE inhibition. However, A. parthenogenetica is more resistant than A. salina, with about a 95% reduction in its ChE activity respect to the control for nauplii exposed to the median lethal concentrations (LC50), without lethal effects after 24 h of exposure.
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Affiliation(s)
- I Varó
- Instituto de Acuicultura de Torre de la Sal, Ribera de Cabanes, Castellón España, Spain.
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Toribio F, Catalan J, Amat F, Acuna AU. Electronically induced proton-transfer reactions in salicylic acid esters and salicyloyl chloride. ACTA ACUST UNITED AC 2002. [DOI: 10.1021/j100228a024] [Citation(s) in RCA: 64] [Impact Index Per Article: 2.9] [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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Varó I, Serrano R, Pitarch E, Amat F, López FJ, Navarro JC. Bioaccumulation of chlorpyrifos through an experimental food chain: study of protein HSP70 as biomarker of sublethal stress in fish. Arch Environ Contam Toxicol 2002; 42:229-235. [PMID: 11815815 DOI: 10.1007/s00244-001-0013-6] [Citation(s) in RCA: 36] [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] [Subscribe] [Scholar Register] [Received: 01/22/2001] [Accepted: 09/10/2001] [Indexed: 05/23/2023]
Abstract
The accumulation and transfer of the organophosphorus pesticide chlorpyrifos has been studied in an experimental aquatic two-level food chain using two species of the crustacean Artemia (A. franciscana and A. parthenogenetica) and the small fish Aphanius iberus. Artemia adults contaminated by exposure to the pesticide in water were used as live prey for Aphanius, the next trophic level. During the experimental bioaccumulation phase, fish were fed chlorpyrifos-contaminated Artemia pools with concentrations between 6.5 and 14.5 ng/g fresh weight for 32 days. Both concentrations accumulated in fish, and biomagnification factor (BMF) values showed a continuous decrease during the bioaccumulation phase, probably due to the physicochemical characteristics of the organophosphorus pesticide, to the biotransformation ability of fish and to the progressive adaptation of fish metabolism to toxic exposure. The first day that fish were fed uncontaminated preys, the pesticide accumulated via food was rapidly eliminated and was not detected. The effect of chlorpyrifos exposure through the food chain on stress protein (HSP70) synthesis was measured as a general biochemical response of stress in the fish (A. iberus). The levels of HSP70 were significantly higher in fish fed on contaminated Artemia than in the control fish fed on uncontaminated Artemia. Results showed that the HSP70 induction in fish could be associated to exposure of chlorpyrifos via food.
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Affiliation(s)
- I Varó
- Instituto de Acuicultura de Torre de la Sal, C.S.I.C., 12595 Ribera de Cabanes, Castellón, Spain
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Barata C, Baird DJ, Amat F, Soares AMVM. Comparing population response to contaminants between laboratory and field: an approach usingDaphnia magnaephippial egg banks. Funct Ecol 2001. [DOI: 10.1046/j.1365-2435.2000.00445.x] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Papeschi AG, Cohen RG, Pastorino XI, Amat F. Cytogenetic proof that the brine shrimp Artemia franciscana (Crustacea, Branchiopoda) is found in Argentina. Hereditas 2001; 133:159-66. [PMID: 11338428 DOI: 10.1111/j.1601-5223.2000.00159.x] [Citation(s) in RCA: 16] [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] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
Artemia brine shrimps are commercially important and they have been extensively studied. This branchiopod crustacean is extensively used in aquaculture and other commercial and applied practices. The genus also awakes an increasing interest worldwide as an experimental model in other basic areas of research such as evolution and cytogenetics. In the present work adult male meiosis and nauplii mitotic cells in two Artemia populations from Argentina (Mar Chiquita and Las Tunas, Córdoba Province) are analyzed and compared to the reference strains A. franciscana (Great Salt Lake, Utah, USA) and A. persimilis (Salinas Grandes de Hidalgo, La Pampa Province, Argentina). The Mar Chiquita population shows the diploid and haploid numbers characteristic of A. franciscana, and a regular male meiosis. In the Las Tunas population diverse diploid and haploid numbers are encountered, and an irregular meiosis is observed in some individuals. Fluorescent DAPI and CMA banding shows bright chromocenters of intermediate size and number in both populations. Cytogenetic and phenotypic data show that the population of Mar Chiquita could be assigned to A. franciscana; the variation found in chromocenter size and number reflects an heterochromatin polytypism already observed in this species. The cytogenetic and morphological traits in Las Tunas population suggest an occasional hybridization between A. franciscana and A. persimilis.
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Affiliation(s)
- A G Papeschi
- Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pabellón II, Ciudad Universitaria, C 1428 EHA Buenos Aires, Argentina.
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35
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Varó I, Serrano R, Pitarch E, Amat F, López FJ, Navarro JC. Toxicity and bioconcentration of chlorpyrifos in aquatic organisms: Artemia parthenogenetica(Crustacea), Gambusia affinis, and Aphanius iberus (Pisces). Bull Environ Contam Toxicol 2000; 65:623-630. [PMID: 11014847 DOI: 10.1007/s0012800169] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Affiliation(s)
- I Varó
- Institute of Aquaculture of Torre de la Sal, C.S.I.C., Ribera de Cabanes, Castellón, Spain
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36
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Abstract
The effect of cestode parasitism on the respiration rate (MO2) of different strains of Artemia from wild populations of Spain was studied. Respiration rates (MO2) of adults from each strain were not affected by the presence of cysticercoids of Flamingolepis liguloides or Hymenolepis stellorae (Cestode, Hymenolepididae). This finding could be related to the absence of reproductive activity (parasite castration) in parasitized females.
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Affiliation(s)
- I Varó
- Instituto de Acuicultura de Torre de la Sal CSIC, Castellón, Spain
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37
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Varó I, Serrano R, Navarro JC, López FJ, Amat F. Acute lethal toxicity of the organophosphorus pesticide chlorpyrifos to different species and strains of Artemia. Bull Environ Contam Toxicol 1998; 61:778-785. [PMID: 9871007 DOI: 10.1007/s001289900828] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Affiliation(s)
- I Varó
- Institute of Aquaculture Torre de la Sal (CSIC), 12595 Ribera de Cabanes, Castellón, Spain
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Varo I, Taylor A, Amat F. The effects of temperature and oxygen tension (PO2) on the oxygen consumption rates of adults of different Artemia strains. Comp Biochem Physiol A Mol Integr Physiol 1998. [DOI: 10.1016/s1095-6433(98)10060-0] [Citation(s) in RCA: 5] [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] [Indexed: 11/16/2022]
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Varó I, Taylor AC, Ferrando MD, Amat F. Effect of endosulfan pesticide on the oxygen consumption rates of nauplii of different Spanish strains of Artemia. J Environ Sci Health B 1997; 32:363-375. [PMID: 9177010 DOI: 10.1080/03601239709373092] [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] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
This study was carried out to investigate the acute toxicity of endosulfan, an organochlorine pesticide, and the effect of a sub-lethal concentration of this compound on the rate of oxygen consumption (MO2) of three different Spanish strains of Artemia neuplii. The 24 h LC50 values showed that the nauplii of the parthenogenetic diploid strain were more resistant, whereas those of the parthenogenetic tetraploid and bisexual strains were more sensitive to endosulfan and did not show differences between them. The results suggest that the use of different Artemia strains, with their differing degree of sensitivity to the same toxicant, may be a valuable tool in aquatic ecotoxicological research. Exposure to sub-lethal concentrations (1/5-24hLC50) of endosulfan had no significant effect on the oxygen consumption rates (MO2) of each strain of the nauplii. Nevertheless, a reduction in the ability of the nauplii to maintain respiratory independence during hypoxia, after 24 h exposure to such dose, was observed.
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Affiliation(s)
- I Varó
- Instituto de Acuicultura de Torre de la Sal C.S.I.C, Castellón, Spain
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Perez ML, Valverde JR, Batuecas B, Amat F, Marco R, Garesse R. Speciation in the Artemia genus: mitochondrial DNA analysis of bisexual and parthenogenetic brine shrimps. J Mol Evol 1994; 38:156-68. [PMID: 8169960 DOI: 10.1007/bf00166162] [Citation(s) in RCA: 73] [Impact Index Per Article: 2.4] [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: 01/29/2023]
Abstract
From the cloned mitochondrial DNAs (mtDNAs) isolated from two bisexual species, one Mediterranean, Artemia salina, and one American, Artemia franciscana, and two parthenogenetic (diploid and tetraploid) strains of Artemia parthenogenetica collected in Spain, physical maps have been constructed and compared. They are extremely different among themselves, much more than the differences between Drosophila melanogaster and D. yakuba and in the same range of different mammalian species such as mouse/rat or man/cow. The nucleotide sequences of two regions of mtDNA encoding parts of the cytochrome c oxidase subunit I (COI) and cytochrome b (Cytb) genes have been determined in the two bisexual species and the two parthenogenetic strains. Comparisons of these sequences have revealed a high degree of divergence at the nucleotide level, averaging more than 15%, in agreement with the differences found in the physical maps. The majority of the nucleotide changes are silent and there is a strong bias toward transitions, with the C<==>T substitutions being highly predominant. The evolutionary distance between the two Artemia parthenogenetica is high and there is no clear relationship with any of the bisexual species, including the one present nowadays in Spain. Using a combination of molecular (mtDNA) and morphological markers it is possible to conclude that all of these Artemia isolates should be actually considered as belonging to different species, even the two Artemia parthenogenetica diploidica and tetraploidica.
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Affiliation(s)
- M L Perez
- Departamento de Bioquímica, Facultad de Medicina de La Universidad Autónoma de Madrid, Spain
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Varó I, Taylor A, Amat F. Comparison of two methods for measuring the rates of oxygen consumption of small aquatic animals (Artemia). ACTA ACUST UNITED AC 1993. [DOI: 10.1016/0300-9629(93)90252-y] [Citation(s) in RCA: 8] [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: 10/27/2022]
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Abstract
The metabolic status of encysted Artemia embryos under anoxic conditions has been studied by calorimetry. Previous work demonstrated a very low, but still measurable, source of metabolic heat (31 nW mg-1 dry mass) after 6 days of anoxia, attributed to the catabolism of small amounts of carbohydrate storage compounds and the unusual nucleotide diguanosine tetraphosphate. Our results indicate that the heat measured drops below the detection limits of our calorimeter (11 nW mg-1 dry mass) after 1.5 h of anoxia, in sharp contrast with previously published results. The possible sources of error that could explain this difference, and a re-evaluation of the metabolic status of cysts during anoxia, are discussed. We conclude that if the cysts are carefully protected from oxygen they become essentially ametabolic.
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Germani Y, Amat F, Brethes B, Begaud E, Plassart H. [Epidemic of gastroenteritis in Noumea (New Caledonia) caused by an enterotoxinogenic strain of Escherichia coli (0l26:B16) believed to be enteropathogenic]. Med Trop (Mars) 1985; 45:245-50. [PMID: 3906346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A strain of enteropathogenic Escherichia coli 0126:B16 has been isolated in fifteen children and one adult during a severe outbreak. One infant is dead. The strain produced heat-stable enterotoxin, attach to rabbit enterocytes but did not have colonization factor antigen CFA/I or CFA/II. Its hemagglutination type was the same that the E. coli H10407, CFA/I+. It presented a resistance at eight antibiotics and, with the loss of enterotoxigenicity, there was a loss of resistance at ampicillin and of the capacity to attach to enterocytes.
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