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Giacometti A, Huyghe E, Ferretti L, Moreau D. [Acceptability of innovative male contraceptive methods among major of age heterosexual adult men in France in 2021]. Prog Urol 2023; 33:993-1001. [PMID: 37806909 DOI: 10.1016/j.purol.2023.09.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 09/11/2023] [Accepted: 09/15/2023] [Indexed: 10/10/2023]
Abstract
INTRODUCTION New methods of male contraception are being studied: male hormonal contraception, reversible occlusion of the vas deferens and thermal contraception. This study aimed to evaluate the acceptability of these methods among men. MATERIAL AND METHODS We carried out an opinion survey from July to November 2021, through an anonymous questionnaire distributed in France on the internet. The subjects were adult, heterosexual men. RESULTS Of the 1545 connections to the questionnaire, we analyzed the 905 complete questionnaires. Seventy three percent of men say they are in favor of adopting an innovative male contraceptive method as their primary contraception: 64% in favor of reversible occlusion of the vas deferens, 22% in favor of male hormonal contraception and 13% in favor of thermal contraception. CONCLUSION Despite its limitations, this study shows that a significant part of the male population is interested in innovative methods of contraception that concern them. This should encourage continued research in this area. LEVEL OF EVIDENCE: 4
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Affiliation(s)
- A Giacometti
- Département de médecine générale, université de Bordeaux, Bordeaux, France.
| | - E Huyghe
- Département d'urologie, andrologie et transplantation rénale, CHU de Toulouse, Toulouse, France
| | - L Ferretti
- Service d'urologie, MSPB Bagatelle, Talence, France; Service d'urologie, CHU de Bordeaux, Bordeaux, France
| | - D Moreau
- Ingénieur statisticien en épidémiologie, Rennes, France
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Salvador A, Peterson W, Nault J, Gravelle A, McCoubrey D, Tsorba L, Leduc D, Bandrowska T, Crowley C, Messier J, Moreau D. Hôpital Montfort's Postnatal Care-at-Home Program: An Innovative Model for Early Postnatal Care. Healthc Q 2022; 25:42-48. [PMID: 36412528 DOI: 10.12927/hcq.2022.26942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
The Montfort Postnatal Care-at-Home (MPCH) Program is an innovative, integrated physician, nurse and midwifery model of care that offers an early hospital discharge option to families. The MPCH Program provides care and support to families throughout their transition from hospital to home. The program has the potential to improve families' experiences and maternal-newborn health outcomes, and provides a safety net to families 24/7 during the first seven days postpartum at home. This model transforms how postnatal care is delivered, and has the potential to improve the flow of the birthing unit and the unit capacity and reduce acute care hospital costs.
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Affiliation(s)
- Ann Salvador
- Is the executive advisor, Strategies and Clinical Innovations and former senior director of the FBC and Hospital Strategies at Hôpital Montfort in Ottawa, ON. She is can be reached by e-mail at
| | - Wendy Peterson
- An associate professor in the School of Nursing at the University of Ottawa and a senior scientist at Institut du Savoir Montfort in Ottawa, ON
| | - Julie Nault
- A consultant pediatrician at Hôpital Montfort, formerly chief of the Pediatric Department, Hôpital Montfort and is an assistant professor at the Faculty of Medicine, University of Ottawa in Ottawa, ON
| | - Anne Gravelle
- Is the director of FBC, Hôpital Montfort and an assistant professor at the Department of Obstetrics and Gynecology, University of Ottawa in Ottawa, ON
| | - David McCoubrey
- Is the chief of the Department of Obstetrics and Gynaecology, Hôpital Montfort and an assistant professor at the Department of Obstetrics and Gynaecology, University of Ottawa in Ottawa, ON
| | - Laurence Tsorba
- A registered midwife formerly with the MPCH Program at the FBC in Hôpital Montfort in Ottawa, ON
| | - Dean Leduc
- Is the chief of the family physicians of the FBC, Hôpital Montfort and an associate professor at the Department Family Medicine, University of Ottawa in Ottawa, ON
| | - Teresa Bandrowska
- A registered midwife in Ottawa, ON, and was formerly the chief midwife at the FBC at Hôpital Montfort
| | - Carolyn Crowley
- A clinical director at Hôpital Montfort in Ottawa, ON, and was formerly the clinical manager of the FBC at Hôpital Montfort
| | - Josette Messier
- Was formerly the clinical manager of the FBC at Hôpital Montfort
| | - Daniel Moreau
- Is the former chief of the Department of Obstetrics and Gynaecology, Hôpital Montfort and an assistant professor at the Department of Obstetrics and Gynaecology, Faculty of Medicine, University of Ottawa in Ottawa, ON
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Auliac J, Simmoneau Y, Thomas P, Guisier F, Bylicki O, Curcio H, Swalduz A, Wislez M, Geier M, J. Le Treut, Decroisette C, Falchero L, Tricard J, Moreau D, Huchot E, De Chabot G, Leroy K, Mansuet AL, Chouaid C, Greillier L. 937P Incidence and outcomes of EGFR mutated non-small cell lung cancer treated with surgery: EXERPOS GFPC study. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1063] [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: 11/01/2022] Open
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Smith J, Paquin S, St‐Amand J, Singh C, Moreau D, Bergeron J, Leroux M. A remediation measure as an alternative to grade retention: A study on achievement motivation. Psychology in the Schools 2022. [DOI: 10.1002/pits.22677] [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: 11/09/2022]
Affiliation(s)
- Jonathan Smith
- Department of Preschool and Primary Education University of Sherbrooke Sherbrooke Quebec Canada
| | - Stéphane Paquin
- School of Psychology Pennsylvania State University State College Pennsylvania USA
| | - Jérôme St‐Amand
- Department of Educational Sciences University of Quebec at Outaouais Gatineau Quebec Canada
| | - Cara Singh
- Department of Educational and Counselling Psychology McGill University Montreal Quebec Canada
| | - Daniel Moreau
- Department of Preschool and Primary Education University of Sherbrooke Sherbrooke Quebec Canada
| | - Julie Bergeron
- Department of Educational Sciences University of Quebec at Outaouais Gatineau Quebec Canada
| | - Mylène Leroux
- Department of Educational Sciences University of Quebec at Outaouais Gatineau Quebec Canada
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Adrian-Lancelle M, Moreau D, Trinh-Duc A, Rozier PA, Darré M, Vanier E, Cournol M, Maillard L, Delonglée V. Analyse de la satisfaction des usagers du Samu 47 (Lot-et-Garonne) sur leur prise en charge dans le cadre de l’aide médicale urgente (AMU). Ann Fr Med Urgence 2022. [DOI: 10.3166/afmu-2022-0447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Objectif : Évaluer la satisfaction des usagers du Samu 47 à la suite de leur appel dans le cadre de l’aide médicale urgente.
Matériel et méthodes : Étude de cohorte observationnelle, monocentrique, prospective, menée entre le 25 août et le 13 septembre 2020 par un même opérateur, à partir d’un questionnaire téléphonique. Le critère de jugement principal était le niveau de satisfaction générale des requérants après leur appel. Les critères secondaires étaient le ressenti du délai de décroché ARM (assistant de régulation médicale) et médical, le niveau de satisfaction de la prise en charge ARM et médicale, le ressenti du délai d’arrivée des effecteurs envoyés, le niveau de satisfaction de leur prise en charge, la mise en application du conseil formulé par le médecin régulateur et la suggestion d’axes d’amélioration.
Résultats : Parmi les 596 requérants inclus, 419 (70 %) étaient « très satisfaits », 132 (22 %) « assez satisfaits », 25 (4 %) « peu satisfaits » et 20 (3 %) « pas du tout satisfaits ». Les analyses univariées montraient que cela était lié à l’entretien avec l’ARM et le médecin régulateur, à la prise en charge des secours, à certaines attentes, à la suite donnée à l’appel, au délai ressenti d’arrivée des secours et au délai ressenti de décroché. L’analyse multivariée révélait que les éléments liés à l’insatisfaction étaient l’attente « faire venir les secours » (RC : 5,71, IC 95 % : 2,56–13,01), le fait de recevoir un conseil à l’issue de l’appel (RC : 9,28, IC 95 % : 4,15–21,96) et le délai ressenti de décroché de l’appel jugé « long » (RC : 3,64, IC 95 % : 1,06–10,75).
Conclusion : Les usagers sont globalement satisfaits à la suite de leur appel au Samu 47.
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Robert C, Munoz A, Moreau D, Mazurier J, Sidorski G, Gasnier A, Beldjoudi G, Grégoire V, Deutsch E, Meyer P, Simon L. Clinical implementation of deep-learning based auto-contouring tools-Experience of three French radiotherapy centers. Cancer Radiother 2021; 25:607-616. [PMID: 34389243 DOI: 10.1016/j.canrad.2021.06.023] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [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: 05/31/2021] [Revised: 06/17/2021] [Accepted: 06/18/2021] [Indexed: 12/23/2022]
Abstract
Deep-learning (DL)-based auto-contouring solutions have recently been proposed as a convincing alternative to decrease workload of target volumes and organs-at-risk (OAR) delineation in radiotherapy planning and improve inter-observer consistency. However, there is minimal literature of clinical implementations of such algorithms in a clinical routine. In this paper we first present an update of the state-of-the-art of DL-based solutions. We then summarize recent recommendations proposed by the European society for radiotherapy and oncology (ESTRO) to be followed before any clinical implementation of artificial intelligence-based solutions in clinic. The last section describes the methodology carried out by three French radiation oncology departments to deploy CE-marked commercial solutions. Based on the information collected, a majority of OAR are retained by the centers among those proposed by the manufacturers, validating the usefulness of DL-based models to decrease clinicians' workload. Target volumes, with the exception of lymph node areas in breast, head and neck and pelvic regions, whole breast, breast wall, prostate and seminal vesicles, are not available in the three commercial solutions at this time. No implemented workflows are currently available to continuously improve the models, but these can be adapted/retrained in some solutions during the commissioning phase to best fit local practices. In reported experiences, automatic workflows were implemented to limit human interactions and make the workflow more fluid. Recommendations published by the ESTRO group will be of importance for guiding physicists in the clinical implementation of patient specific and regular quality assurances.
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Affiliation(s)
- C Robert
- Department of Radiotherapy, Gustave-Roussy, Villejuif, France.
| | - A Munoz
- Department of Radiotherapy, Centre Léon-Bérard, Lyon, France
| | - D Moreau
- Department of Radiotherapy, Hôpital Européen Georges-Pompidou, Paris, France
| | - J Mazurier
- Department of Radiotherapy, Clinique Pasteur-Oncorad, Toulouse, France
| | - G Sidorski
- Department of Radiotherapy, Clinique Pasteur-Oncorad, Toulouse, France
| | - A Gasnier
- Department of Radiotherapy, Gustave-Roussy, Villejuif, France
| | - G Beldjoudi
- Department of Radiotherapy, Centre Léon-Bérard, Lyon, France
| | - V Grégoire
- Department of Radiotherapy, Centre Léon-Bérard, Lyon, France
| | - E Deutsch
- Department of Radiotherapy, Gustave-Roussy, Villejuif, France
| | - P Meyer
- Service d'Oncologie Radiothérapie, Institut de Cancérologie Strasbourg Europe (Icans), Strasbourg, France
| | - L Simon
- Institut Claudius Regaud (ICR), Institut Universitaire du Cancer de Toulouse - Oncopole (IUCT-O), Toulouse, France
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Combes S, Kardiana D, Le Grand E, Moreau D, Quinette M, Sauzède S. Empowering minor migrants: peer support program Nantes. Eur J Public Health 2019. [DOI: 10.1093/eurpub/ckz186.043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Under-aged migrants (UAMs) may see their legal minority unrecognised by the French state. If they confront this decision at court, they stand in a legal void. They can benefit from a direct access to State Medical Aid and are not submitted to a minimum period of 3 months of staying in France unlike adults. Moreover, when accessing care, unrecognised UAMs are in an unclear situation as they are minors without legal representation. This research is based on a newly created program ran by Doctors of the World (MDM) in Nantes, aiming to enhance UAMs access to health care and rights through peer-support. Peer-support is intended to develop the empowerment the UAM and help them to be able to be the authors of their life thus develop their own abilities (Le Grand, 2018). The role of empowerment in health access is established (Wallerstein, 2006). The research aims at identifying the obstacles and levers in the implementation of the program, the modifications it can cause in the program.
Methods
The research is based on 3 months ethnographical observations, 9 formal interviews with UAM, 5 with professionals, and informal interviews.
Results
We identify that volunteers share a different perception of what is empowerment. Some would leave quite a large autonomy to UAMs while others find it difficult to alter the organisation to give space to UAMs. Finally, self-help mainly develops abilities of those UAMs who were more resourceful.
Conclusions
The analysis shows that a successful program of empowerment rely on shared views of its meaning. Moreover it shows that empowerment may help mainly those resourceful thus exacerbate some inequalities in ressources.
Key messages
The notions of empowerment and peer-support need to be well understood by all. Empowerment, as a side effect first exacerbates some inequalities of resources among UAMs.
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Affiliation(s)
- S Combes
- Université de Rennes, EHESP, CNRS, ARENES – UMR 6051, Ren, École des Hautes Études en Santé Publique, Rennes, France
- French Collaborative Institute on Migration, Collège de France, Paris, France
| | - D Kardiana
- École des Hautes Études en Santé Publique, Rennes, France
| | - E Le Grand
- Université de Rennes, EHESP, CNRS, ARENES – UMR 6051, Ren, École des Hautes Études en Santé Publique, Rennes, France
| | - D Moreau
- Université de Rennes, EHESP, CNRS, ARENES – UMR 6051, Ren, École des Hautes Études en Santé Publique, Rennes, France
| | - M Quinette
- Médecins du Monde, Doctors of the World, Nantes, France
| | - S Sauzède
- École des Hautes Études en Santé Publique, Rennes, France
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Sagnard A, Guenancia C, Fauchier L, Moreau D, Daumas B, Beer J, Cottin Y, Zeller M. New insights on the pathogenesis of atrial fibrillation in acute myocardial infarction: Data from the “ObseRvatoire des Infarctus de Côte d’Or” (RICO) survey. Archives of Cardiovascular Diseases Supplements 2019. [DOI: 10.1016/j.acvdsp.2018.10.023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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9
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Moreau D, Huchot E, Gazaille V, Rossanaly-Vasram R, Andre M. Automédication par Annona muricata L. (corossol) à visée anticancéreuse à la Réunion. Rev Mal Respir 2018; 35:948-955. [DOI: 10.1016/j.rmr.2018.08.001] [Citation(s) in RCA: 5] [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] [Received: 03/23/2017] [Accepted: 11/02/2017] [Indexed: 10/28/2022]
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Sagnard A, Guenancia C, Fauchier L, Moreau D, Daumas B, Beer JC, Cottin Y, Zeller M. P1283New insights on the pathogenesis of atrial fibrillation in acute myocardial infarction: data from the RICO survey. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p1283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- A Sagnard
- University Hospital Center Dijon Bourgogne, Cardiology Department, Dijon, France
| | - C Guenancia
- University Hospital Center Dijon Bourgogne, Cardiology Department, Dijon, France
| | - L Fauchier
- University Hospital Center of Tours, Cardiology Department, Tours, France
| | - D Moreau
- University Hospital Center Dijon Bourgogne, Cardiology Department, Dijon, France
| | - B Daumas
- University Hospital Center Dijon Bourgogne, Cardiology Department, Dijon, France
| | - J.-C Beer
- University Hospital Center Dijon Bourgogne, Cardiology Department, Dijon, France
| | - Y Cottin
- University Hospital Center Dijon Bourgogne, Cardiology Department, Dijon, France
| | - M Zeller
- University of Bourgogne Franche-Comté, PEC2, EA 7460, Dijon, France
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Moreau D, Huchot E, Gazaille V, Rossanaly-Vasram R, Andre M. Automédication à visée anticancéreuse par Corossol (Annona Muricata L.) dans le cancer bronchopulmonaire à la Réunion. Rev Mal Respir 2018. [DOI: 10.1016/j.rmr.2017.10.532] [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: 10/18/2022]
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Moreau D, Gazaille V, Allou N, Fernandez C, André V, André M. [Multiple ground-glass opacities nodules]. Rev Pneumol Clin 2017; 73:146-150. [PMID: 28413146 DOI: 10.1016/j.pneumo.2017.02.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Revised: 02/02/2017] [Accepted: 02/21/2017] [Indexed: 06/07/2023]
Abstract
INTRODUCTION Ground-glass opacities nodules are frequently detected with the advances of radiological imaging. These can be preinvasive lesions such as atypical adenomatous hyperplasia but also invasive lesions. It leads to question in patients with lung cancer about treatment strategy and follow up. CASE REPORT We report the case of a 72 years-old woman followed for a lung adenocarcinoma with an EGFR mutation of the right upper lobe stage IIb. The CT scan shows multiple pure ground-glass opacities in the same lobe of the primitive tumor but also in the other lobe. On the piece of lobectomy, histopathology of two ground-glass opacities showed atypical adenomatous hyperplasia. CONCLUSION Ground-glass opacities nodules could be found in patients with an operable lung cancer. These can be multiple and match with atypical adenomatous hyperplasia but also carcinomas lesions. The radiological surveillance is still the standard. The strategy for surgical resection has to be defined especially in case of multiple lesions which can require repeated surgical resection.
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Affiliation(s)
- D Moreau
- Pneumologie, CHRU de la Réunion, Site Félix Guyon, allée des Topazes, CS 11021, 97400 Saint-Denis, France
| | - V Gazaille
- Pneumologie, CHRU de la Réunion, Site Félix Guyon, allée des Topazes, CS 11021, 97400 Saint-Denis, France
| | - N Allou
- Pneumologie, CHRU de la Réunion, Site Félix Guyon, allée des Topazes, CS 11021, 97400 Saint-Denis, France
| | - C Fernandez
- Pneumologie, CHRU de la Réunion, Site Félix Guyon, allée des Topazes, CS 11021, 97400 Saint-Denis, France
| | - V André
- Pneumologie, CHRU de la Réunion, Site Félix Guyon, allée des Topazes, CS 11021, 97400 Saint-Denis, France
| | - M André
- Pneumologie, CHRU de la Réunion, Site Félix Guyon, allée des Topazes, CS 11021, 97400 Saint-Denis, France.
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Chagué F, Guenancia C, Gudjoncik A, Moreau D, Cottin Y, Zeller M. Smokeless tobacco, sport and the heart. Arch Cardiovasc Dis 2014; 108:75-83. [PMID: 25497687 DOI: 10.1016/j.acvd.2014.10.003] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2014] [Revised: 10/29/2014] [Accepted: 10/30/2014] [Indexed: 11/24/2022]
Abstract
Smokeless tobacco (snuff) is a finely ground or shredded tobacco that is sniffed through the nose or placed between the cheek and gum. Chewing tobacco is used by putting a wad of tobacco inside the cheek. Smokeless tobacco is widely used by young athletes to enhance performance because nicotine improves some aspects of physiology. However, smokeless tobacco has harmful health effects, including cardiovascular disorders, linked to nicotine physiological effects, mainly through catecholamine release. Nicotine decreases heart rate variability and the ventricular fibrillation threshold, and promotes the occurrence of various arrhythmias; it also impairs endothelial-dependent vasodilation and could therefore promote premature atherogenesis. At rest, heart rate, blood pressure, inotropism, cardiac output and myocardial oxygen consumption are increased by nicotine, leading to an imbalance between myocardial oxygen demand and supply. The same occurs at submaximal levels of exercise. These increases are accompanied by a rise in systemic resistances. At maximal exercise, heart rate, cardiac output and maximal oxygen uptake (V˙O2max) are unaffected by nicotine. Because endothelial dysfunction is promoted by nicotine, paradoxical coronary vasoconstriction may occur during exercise and recovery. Nicotine induces a decrease in muscular strength and impairs anaerobic performance. However, nicotine is used in sports as it diminishes anxiety, enhances concentration and agility, improves aerobic performance and favours weight control. Importantly, smokeless tobacco, similar to cigarette smoking, leads to nicotine dependence through dopaminergic pathways. Smokeless tobacco has harmful cardiovascular effects and is addictive: it fulfils all the criteria for inclusion in the World Anti-Doping Agency prohibited list as a doping product. Smokeless tobacco use in sporting activities must be discouraged.
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Affiliation(s)
| | - Charles Guenancia
- Cardiology Department, CHU de Dijon, Dijon, France; Laboratory of Cardiometabolic Physiopathology and Pharmacology, INSERM U866, University of Burgundy, Dijon, France
| | | | - Daniel Moreau
- Laboratory of Cardiometabolic Physiopathology and Pharmacology, INSERM U866, University of Burgundy, Dijon, France
| | - Yves Cottin
- Cardiology Department, CHU de Dijon, Dijon, France; Laboratory of Cardiometabolic Physiopathology and Pharmacology, INSERM U866, University of Burgundy, Dijon, France
| | - Marianne Zeller
- Laboratory of Cardiometabolic Physiopathology and Pharmacology, INSERM U866, University of Burgundy, Dijon, France.
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Moreau D, Mansy-Dannay A, Clerc J, Guerrien A. Présentation d’un outil original mesurant la qualité des représentations motrices en sports de combat : le test spécifique d’imagerie du mouvement (MIST). Sci Sports 2012. [DOI: 10.1016/j.scispo.2012.01.002] [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: 10/28/2022]
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Lorgis L, Moreau D, Mock L, Daumas B, Potard D, Touzery C, Cottin Y, Zeller M. High N-terminal pro-B-type natriuretic peptide levels are associated with reduced heart rate variability in acute myocardial infarction. PLoS One 2012; 7:e44677. [PMID: 23071500 PMCID: PMC3470551 DOI: 10.1371/journal.pone.0044677] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2012] [Accepted: 08/10/2012] [Indexed: 11/18/2022] Open
Abstract
Aim We investigated the relationships between the autonomic nervous system, as assessed by heart rate variability (HRV) and levels of N-terminal Pro-B-type Natriuretic Peptide (Nt-proBNP) in patients with acute myocardial infarction (MI). Methods and Results The mean of standard deviation of RR intervals (SDNN), the percentage of RR intervals with >50 ms variation (pNN50), square root of mean squared differences of successive RR intervals (rMSSD), and frequency domain parameters (total power (TP), high frequency and low frequency power ratio (LF/HF)) were assessed by 24 h Holter ECG monitoring. 1018 consecutive patients admitted <24 h for an acute MI were included. Plasma Nt-proBNP (Elecsys, Roche) was measured from blood samples taken on admission. The median (IQR) Nt-proBNP level was 681(159–2432) pmol/L. Patients with the highest quartile of Nt-proBNP were older, with higher rate of risk factors and lower ejection fraction. The highest Nt-proBNP quartile group had the lowest SDNN, LF/HF and total power but similar pNN50 and rMSSD levels. Nt-proBNP levels correlated negatively with SDNN (r = −0.19, p<0.001), LF/HF (r = −0.37, p<0.001), and LF (r = −0.29, p<0.001) but not HF (r = −0.043, p = 0.172). Multiple regression analysis showed that plasma propeptide levels remained predictive of LF/HF (B(SE) = −0.065(0.015), p<0.001)), even after adjustment for confounders. Conclusions In conclusion, our population-based study highlights the importance of Nt-proBNP levels to predict decreased HRV after acute MI.
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Affiliation(s)
- Luc Lorgis
- Centre de Cardiologie, CHU Dijon, Dijon, France
| | - Daniel Moreau
- Service d'Exploration Fonctionnelle, CHU Dijon, Dijon, France
- Laboratoire de Physiopathologie et Pharmacologie Cardiométaboliques, INSERM UMR 866, UFR Médecine, Université de Bourgogne, Dijon, France
| | - Laurent Mock
- Service de Cardiologie, Clinique de Fontaine les Dijon, Fontaine les Dijon, France
| | - Bernadette Daumas
- Centre de Cardiologie, CHU Dijon, Dijon, France
- Service d'Exploration Fonctionnelle, CHU Dijon, Dijon, France
| | - Daniel Potard
- Centre de Cardiologie, CHU Dijon, Dijon, France
- Service de Cardiologie, Clinique de Fontaine les Dijon, Fontaine les Dijon, France
| | | | - Yves Cottin
- Centre de Cardiologie, CHU Dijon, Dijon, France
- Laboratoire de Physiopathologie et Pharmacologie Cardiométaboliques, INSERM UMR 866, UFR Médecine, Université de Bourgogne, Dijon, France
| | - Marianne Zeller
- Laboratoire de Physiopathologie et Pharmacologie Cardiométaboliques, INSERM UMR 866, UFR Médecine, Université de Bourgogne, Dijon, France
- * E-mail:
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Mazon D, Vezinet D, Pacella D, Moreau D, Gabelieri L, Romano A, Malard P, Mlynar J, Masset R, Lotte P. Soft x-ray tomography for real-time applications: present status at Tore Supra and possible future developments. Rev Sci Instrum 2012; 83:063505. [PMID: 22755625 DOI: 10.1063/1.4730044] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
This paper is focused on the soft x-ray (SXR) tomography system setup at Tore Supra (DTOMOX) and the recent developments made to automatically get precise information about plasma features from inverted data. The first part describes the main aspects of the tomographic inversion optimization process. Several observations are made using this new tool and a set of shape factors is defined to help characterizing the emissivity field in a real-time perspective. The second part presents a detailed off-line analysis comparing the positions of the magnetic axis obtained from a magnetic equilibrium solver, and the maximum of the reconstructed emissivity field for ohmic and heated pulses. A systematic discrepancy of about 5 cm is found in both cases and it is shown that this discrepancy increases during sawtooth crashes. Finally, evidence of radially localized tungsten accumulation with an in-out asymmetry during a lower hybrid current drive pulse is provided to illustrate the DTOMOX capabilities for a precise observation of local phenomena.
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Affiliation(s)
- D Mazon
- CEA, IRFM 13108 Saint-Paul-lez-Durance, France
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Demaison L, Moreau D, Clauw F, Vergely C, Rochette L. Mitochondrial basis of the anti-arrhythmic action of lidocaine and modulation by the n-6 to n-3 PUFA ratio of cardiac phospholipids. Fundam Clin Pharmacol 2012; 27:373-86. [PMID: 22360894 DOI: 10.1111/j.1472-8206.2012.01031.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The aim of this study was to evaluate the involvement of mitochondria in the mechanism of the anti-arrhythmic lidocaine. Rats were fed with a diet containing either n-6 polyunsaturated fatty acids (PUFAs, SSO group) or an equimolecular mixture of n-3 and n-6 PUFAs (FO group) for 8 weeks. The hearts were perfused according to the working mode using a medium with or without lidocaine 5 μm. They were then subjected to local ischemia (20 min) and reperfusion (30 min). Dietary n-3 PUFAs triggered the expected decrease in the n-6/n-3 PUFA ratio of cardiac phospholipids. Reperfusing the ischemic area favored the incidence of severe arrhythmias. Lidocaine treatment abolished almost completely reperfusion arrhythmias in the FO group, but did not display anti-arrhythmic properties in the SSO group. As it was indicated by measurements of the mitochondrial function, lidocaine seemed to favor mitochondrial calcium retention in the FO group, which might prevent cytosolic calcium spikes and reperfusion arrhythmias. In the SSO group, the resistance to lidocaine was associated with an aggravation of cellular damages. The mitochondrial calcium retention capacities were saturated, and lidocaine was unable to increase them, making the drug inefficient in preventing reperfusion arrhythmias.
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Affiliation(s)
- Luc Demaison
- INRA, Clermont Université, Université d'Auvergne, Unité de Nutrition Humaine, BP 10448, F-63000 Clermont-Ferrand, France.
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Korandji C, Zeller M, Guilland J, Collin B, Lauzier B, Sicard P, Duvillard L, Goirand F, Moreau D, Cottin Y, Rochette L, Vergely C. Time course of asymmetric dimethylarginine (ADMA) and oxidative stress in fructose-hypertensive rats: A model related to metabolic syndrome. Atherosclerosis 2011; 214:310-5. [DOI: 10.1016/j.atherosclerosis.2010.11.014] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2010] [Revised: 11/08/2010] [Accepted: 11/11/2010] [Indexed: 10/18/2022]
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Hulin M, Annesi-Maesano I, Moreau D, Caillaud D. Association entre pollution particulaire et inflammation des bronches : effet modulateur de l’asthme et de l’atopie. Revue Française d'Allergologie 2010. [DOI: 10.1016/j.reval.2010.01.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Moreau D. Que fait-on quand on nomme ? Le handicap psychique face aux figures de la folie et de la maladie mentale. Annales Médico-psychologiques, revue psychiatrique 2010. [DOI: 10.1016/j.amp.2010.09.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Piau JP, Massot C, Moreau D, Aït-Khaled N, Bouayad Z, Mohammad Y, Khaldi F, Bah-Sow O, Camara L, Koffi NB, M'boussa J, El Sony A, Moussa OA, Bousquet J, Annesi-Maesano I. Assessing allergic rhinitis in developing countries. Int J Tuberc Lung Dis 2010; 14:506-512. [PMID: 20202311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023] Open
Abstract
BACKGROUND Allergic rhinitis (AR) affects 5% to 40% of the general population. In developing countries, AR is poorly documented and tracked due to a lack of appropriate diagnostic tools. OBJECTIVE 1) To validate a questionnaire standardised in industrialised countries to ascertain AR, the Score For Allergic Rhinitis (SFAR), in developing countries; 2) to better understand AR prevalence previously reported from developing countries by comparing results from the SFAR and the International Study of Asthma and Allergies in Childhood (ISAAC) questionnaires. METHODS Six African countries were selected for their climates. In each country, 70 individuals with and 30 without nasal symptoms filled out the SFAR and the ISAAC questionnaires. Skin prick tests (SPTs) for allergens were performed by the physician if necessary. RESULTS The SFAR presented a close match with the gold standard (the physician's diagnosis of AR backed up by SPT where necessary) in terms of various performance parameters. In particular, it showed high sensitivity (0.84) and specificity (0.81). Compared to the ISAAC questionnaire, the SFAR had greater sensitivity and equal specificity. CONCLUSIONS In the absence of a medical visit, the SFAR is a useful standardised screening instrument for the collection of information needed for the identification of AR in developing countries.
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Affiliation(s)
- J P Piau
- Epidémiologie des Maladies Allergiques et Respiratoires (EPAR), Unité Mixte de Recherche en Santé (UMR-S) 707, Institut National de la Santé et de la Recherche Médicale, Paris, France
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Randriamanantany ZA, Annesi-Maesano I, Moreau D, Raherison C, Charpin D, Kopferschmitt C, Lavaud F, Taytard A, De Blay F, Caillaud D. Alternaria sensitization and allergic rhinitis with or without asthma in the French Six Cities study. Allergy 2010; 65:368-75. [PMID: 19849673 DOI: 10.1111/j.1398-9995.2009.02210.x] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND Allergic sensitization to Alternaria has been related to asthma in various studies, but its association with allergic rhinitis is still controversial. OBJECTIVES The aim of this study was to assess at the population level the relationships in childhood between Alternaria sensitization and 'past-year rhinoconjunctivitis' (PYRC), 'ever hay fever' (EHF) and 'ever allergic rhinitis caused by allergens other than pollens' (EAR) according to the presence or the absence of asthma. METHODS This study is part of the Six Cities Study, the French contribution to the International Study of Asthma and Allergies in Childhood (ISAAC) Phase II. Children underwent skin prick test (SPT) to Alternaria and parents filled a standardized medical questionnaire. RESULTS Some 6726 children with a mean age of 10 years were examined. The overall prevalence of Alternaria sensitization was 2.8%, 0.8% for monosensitization. Prevalences of symptoms in sensitized children were 27.7% for PYRC, 27.0% for EHF and 30.4% for EAR. Adjusted Odds Ratios (OR) between Alternaria sensitization and allergic rhinitis phenotypes were 2.34 (95% confidence interval: 1.51-3.63) for PYRC, 2.40 (1.65-3.50) for EHF and 2.95 (2.05-4.23) for EAR. The relationship still remained in the case of monosensitization to Alternaria for both PYRC and EAR when excluding the asthmatic children [OR = 3.87 (1.54-9.78) and 2.88 (1.10-7.55) respectively]. CONCLUSION In our population-based sample of children, we found a link between Alternaria sensitization and allergic rhinitis, independently of asthma, which is compatible with the mechanisms of deposition of Alternaria in the upper airways.
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MESH Headings
- Alternaria/immunology
- Asthma/immunology
- Asthma/microbiology
- Child
- Female
- France
- Humans
- Male
- Prevalence
- Rhinitis, Allergic, Perennial/epidemiology
- Rhinitis, Allergic, Perennial/immunology
- Rhinitis, Allergic, Perennial/microbiology
- Rhinitis, Allergic, Seasonal/epidemiology
- Rhinitis, Allergic, Seasonal/immunology
- Rhinitis, Allergic, Seasonal/microbiology
- Skin Tests
- Surveys and Questionnaires
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Affiliation(s)
- Z A Randriamanantany
- CHU Clermont-Ferrand, Hôpital Gabriel Montpied, Service de Pneumologie, rue Montalembert, Clermont-Ferrand, France
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Coquet I, Mousson C, Rifle G, Laurent G, Moreau D, Cottin Y, Zeller M, Touzery C, Wolf JE. Influence of Ischemia on Heart-Rate Variability in Chronic Hemodialysis Patients. Ren Fail 2009. [DOI: 10.1081/jdi-42858] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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Romanelli F, Paméla J, Kamendje R, Watkins M, Brezinsek S, Liang Y, Litaudon X, Loarer T, Moreau D, Mazon D, Saibene G, Sartori F, de Vries P. Recent contribution of JET to the ITER physics. Fusion Engineering and Design 2009. [DOI: 10.1016/j.fusengdes.2008.11.088] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Rousseau-Ralliard D, Moreau D, Guilland JC, Raederstorff D, Grynberg A. Docosahexaenoic acid, but not eicosapentaenoic acid, lowers ambulatory blood pressure and shortens interval QT in spontaneously hypertensive rats in vivo. Prostaglandins Leukot Essent Fatty Acids 2009; 80:269-77. [PMID: 19428232 DOI: 10.1016/j.plefa.2009.03.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2009] [Revised: 03/19/2009] [Accepted: 03/20/2009] [Indexed: 11/19/2022]
Abstract
This study was designed to evaluate the effects of individual dietary long-chain n-3 polyunsaturated fatty acids (LCPUFA) on hypertension and cardiac consecutive disorders in spontaneously hypertensive rats (SHR) as compared to Wistar-Kyoto rats (WKY). Rats were fed for 2 months an eicosapentaenoic (EPA)- or docosahexaenoic acid (DHA)-rich diet (240 mg/day) or an n-3 PUFA-free diet. Male SHR (n=6), implanted with cardiovascular telemetry devices, were housed in individual cages for continuous measurements of cardiovascular parameters (blood pressure (BP) and heart rate (HR)) during either activity or rest periods, ECG were recorded during the quiet period. The n-6 PUFA upstream of arachidonic acid was affected in SHR tissues. The cardiac phospholipid fatty acid profile was significantly affected by dietary DHA supply, and EPA in a very lower extent, since DHA only was incorporated in the membranes instead of n-6 PUFAs. Endothelium n-6 PUFA content increased in all SHR groups. Compared to WKY, linoleic acid content decreased in both studied tissues. Cardiac noradrenalin decreased while the adrenal catecholamine stores decreased in SHR as compared to WKY. Both n-3 PUFA supply induced a decrease of adrenal catecholamine stores. Nevertheless after 6 weeks, DHA but not EPA induced a lowering-blood pressure effect and shortened the QT interval in SHR, most probably through its tissue enrichment and a specific effect on adrenergic function. Dietary DHA supply retards blood pressure development and has cardioprotective effect. These findings, showing the cardioprotective effects of DHA in living animals, were obtained in SHR, but may relate to essential hypertension in humans.
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Affiliation(s)
- Delphine Rousseau-Ralliard
- INRA (Institut National de la recherche Agronomique), UMR-A 1154, Laboratoire Lipides Membranaires et Régulation Fonctionnelle du Coeur et des Vaisseaux, Faculté de Pharmacie, Châtenay-Malabry 92290, France.
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Annesi-Maesano I, Caillaud D, Lavaud F, Moreau D, Le Moullec Y, Taytard A, Pauli G, Charpin D. [Exposure to fine air particles and occurrence of allergic diseases: results of ISAAC-France phase 2]. Arch Pediatr 2009; 16:299-305. [PMID: 19211233 DOI: 10.1016/j.arcped.2008.12.004] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
To evaluate whether fine air particles could be involved in the occurrence of atopy and allergic diseases, we performed a cross-sectional epidemiological survey involving primary schoolchildren living in six French towns with contrasted air pollution levels. Air pollution was measured during a week in the school yards and by standard air monitoring networks. Children get an examination in school looking for atopic dermatitis and bronchial hyperresponsiveness assessed by a standardized run test. Besides, parents or guardians provided past medical history and environmental data, especially on passive smoking. Overall, 5,338 children, aged 10.4 (+/-0.7) years, coming from 108 different schools and 401 different classes were included in the survey. Taking into account potential confounders, high exposure to proximity PM(2.5) was linked to a higher point prevalence of atopic dermatitis and hyperresponsiveness, to a higher cumulative prevalence of allergic asthma and a higher sensitization rate to common indoor allergens. Thus, these data suggest that chronic exposure to urban fine particles could be a risk factor for atopy, hyperresponsiveness and asthma.
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Kalaboka S, Piau JP, King G, Moreau D, Choquet M, Annesi-Maesano I. Sex and gender differences in tobacco smoking among adolescents in French secondary schools. Monaldi Arch Chest Dis 2009; 69:142-51. [PMID: 19065850 DOI: 10.4081/monaldi.2008.393] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
AIM We investigated the relationship between sex (genetic/biological) and gender (environmental/cultural) factors in relation to adolescent tobacco smoking. METHODS A representative sample of 11,582 students from French secondary public schools participated in the study by completing a self-administered, standardised questionnaire. RESULTS Using the WHO classification for smoking in the youth, 15.6% of the adolescents were regular smokers, 7.7% occasional smokers, 17.9% experimental smokers and 4.8% ex-smokers, with no statistically significant gender difference. Taking non-smoking as a reference, puberty had a much greater effect on the likelihood of being a regular smoker [OR = 18.0 (95% Confidence Interval: 9.6-32)] than of being an experimental/occasional smoker [OR = 3.7 (2.9-4.6)] among girls. For boys, the effect of puberty was not as great [OR = 4.7 (3.5-6.5)] for regular vs. [OR = 2.1 (1.8-2.5)] for experimental/occasional smokers). Similarly, illicit drug use had a larger effect on the likelihood of being regular smoker vs. non-smoker [OR = 15.0 (12.0-20.0) in boys and 12 (8.8-16.0) in girls] than of being experimental/occasional smoker vs. a non-smoker [OR = 4.8 (3.7-6.1) and 2.9 (2.1-3.9) respectively]. Other factors related to regular smoking were exposure to passive smoking and regular alcohol consumption. Living with both parents was a protective factor for life and regular smoking in both genders. CONCLUSIONS Our results show that influential factors of sex-related (puberty), gender-specific (environmental tobacco smoking, alcohol consumption, drug abuse) or sex/gender (regular sexual intercourse) are related to the smoking behaviour in French adolescents.
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Mourey F, Brondel L, Van Wymelbeke V, Buchheit M, Moreau D, Pfitzenmeyer P. Assessment of cardiac autonomic nervous activity in frail elderly people with postural abnormalities and in control subjects. Arch Gerontol Geriatr 2009; 48:121-4. [DOI: 10.1016/j.archger.2007.11.004] [Citation(s) in RCA: 4] [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] [Received: 08/08/2007] [Revised: 11/01/2007] [Accepted: 11/08/2007] [Indexed: 10/22/2022]
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Durand-Zaleski IS, Alberti C, Durieux P, Duval X, Gottot S, Ravaud P, Gainotti S, Vincent-Genod C, Moreau D, Amiel P. Informed consent in clinical research in France: assessment and factors associated with therapeutic misconception. J Med Ethics 2008; 34:e16. [PMID: 18757616 DOI: 10.1136/jme.2007.023473] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
BACKGROUND Informed consent in clinical research is mandated throughout the world. Both patient subjects and investigators are required to understand and accept the distinction between research and treatment. AIM To document the extent and to identify factors associated with therapeutic misconception in a population of patient subjects or parent proxies recruited from a variety of multicentre trials (parent studies). PATIENTS AND METHODS The study comprised two phases: the development of a questionnaire to assess the quality of informed consent and a survey of patient subjects based on this questionnaire. RESULTS A total of 303 patient subjects or parent proxies were contacted and 279 questionnaires were analysed. The median age was 49.5 years, sex ratio was 1 and 61% of respondents were professionally active. Overall memorisation of the oral or written communication of informed consent was good (69-97%), and satisfaction with the process was around 70%. Therapeutic misconception was present in 70% of respondents, who expected to receive better care and ignored the consequence of randomisation and treatment comparisons. This was positively associated with the acuteness and severity of the disease. CONCLUSION The authors suggest that the risk of therapeutic misconception be specifically addressed in consent forms as an educational tool for both patients and investigators.
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Zeller M, Korandji C, Guilland JC, Sicard P, Vergely C, Lorgis L, Beer JC, Duvillard L, Lagrost AC, Moreau D, Gambert P, Cottin Y, Rochette L. Impact of asymmetric dimethylarginine on mortality after acute myocardial infarction. Arterioscler Thromb Vasc Biol 2008; 28:954-60. [PMID: 18276906 DOI: 10.1161/atvbaha.108.162768] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVE Asymmetrical dimethylarginine (ADMA) is an endogenous competitive inhibitor of nitric oxide (NO) synthases. From a prospective cohort of patients with acute myocardial infarction (MI), we aimed to analyze the predictive value of circulating ADMA concentrations on prognosis. METHODS AND RESULTS Blood samples from 249 consecutive patients hospitalized for acute MI <24 hours were taken on admission. Serum levels of ADMA and its stereoisomer, symmetrical dimethylarginine (SDMA), were determined using high-performance liquid chromatography. The independent predictors of ADMA were glomerular filtration rate, female sex, and SDMA (R(2)=0. 25). Baseline ADMA levels were higher in patients who had died than in patients who were alive at 1 year follow-up (1.23 [0.98 to 1.56] versus 0.95 [0.77 to 1.20] micromol/L, P<0.001). By Cox multivariate analysis, the higher tertile of ADMA (median [interquartile range]: 1.45 [1.24 to 1.70] micromol/L) was a predictor for mortality (Hazard Ratio [95% CI], 4.83 [1.59 to 14.71]), when compared to lower tertiles, even when adjusted for potential confounders, such as acute therapy, biological, and clinical factors. CONCLUSIONS Our study suggests that the baseline ADMA level has a strong prognostic value for mortality after MI, beyond traditional risk factors and biomarkers.
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Affiliation(s)
- Marianne Zeller
- Laboratory of Experimental Cardiovascular Pathophysiology and Pharmacology, Faculty of Medicine, University of Burgundy, Dijon Cedex, France.
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Tsotinis A, Zouroudis S, Moreau D, Roussakis C. C4-Substituted Isoquinolines: Synthesis and Cytotoxic Action. TOMCJ 2007; 1:e1-2. [PMID: 20101284 PMCID: PMC2801915 DOI: 10.2174/187410450701011054] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/26/2007] [Accepted: 03/26/2007] [Indexed: 11/25/2022]
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Ayalew-Pervanchon A, Rousseau D, Moreau D, Assayag P, Weill P, Grynberg A. Long-term effect of dietary α-linolenic acid or decosahexaenoic acid on incorporation of decosahexaenoic acid in membranes and its influence on rat heart in vivo. Am J Physiol Heart Circ Physiol 2007; 293:H2296-304. [PMID: 17526653 DOI: 10.1152/ajpheart.00194.2007] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The present study was designed to evaluate whether long-term intake of dietary α-linolenic acid (ALA), supplied as whole grain-extruded linseed, can increase endogenous production of n-3 long-chain polyunsaturated fatty acids (FAs) in healthy adult rats and influence the heart rate (HR) and adrenergic response in the same way as docosahexaenoic acid (DHA)-rich diets. DHA enrichment was evaluated using FA analysis of tissue phospholipids after 8, 16, 24, and 32 wk of feeding in male Wistar rats randomly assigned to three dietary groups ( n = 8 in each group): a reference fat diet (RFD), an ALA-rich (ALA) diet, and a DHA-rich (DHA) diet. At 1 wk before the animals were killed, under anesthesia, HR was measured from ECG recordings during an adrenergic stimulation challenge ( n = 8). There was a significant increase of DHA in the cardiac membrane in the ALA group compared with the RFD group. DHA content in the cardiac membrane was ∼10% in the ALA group vs. 20% in the DHA group and 4% in the RFD group. The cardiac FA profile was established after 2 mo and remained essentially unchanged thereafter. Regardless of the diet, DHA in the heart decreased with age. Nevertheless, DHA content in the heart remained at >15% in the DHA group and remained greater in older rats fed the ALA diet than in younger RFD-fed rats. Basal HR decreased in the ALA group (395 ± 24.9 beats/min) to a level between that of the DHA and RFD groups (375 ± 26.4 and 407 ± 36.7 beats/min, respectively). Both n-3 dietary intakes contribute to enhancement of the chronotropic response to adrenergic agonist stimulation. Regulation of HR by neurohumoral mediators may be controlled by lower content of DHA, e.g., by a dietary supply of extruded linseed (ALA).
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Affiliation(s)
- Adey Ayalew-Pervanchon
- Institut National de la Recherche Agronomique, Unité Mixte de Recherche 1154, Lipides Membranaires et Régulation Fonctionnelle du Coeur et des Vaisseaux, Châtenay-Malabry, France
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Tsotinis A, Zouroudis S, Moreau D, Roussakis C. C4-substituted isoquinolines: synthesis and cytotoxic action. Open Med Chem J 2007; 1:1-3. [PMID: 19662134 PMCID: PMC2704582 DOI: 10.2174/1874104500701010001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/20/2007] [Revised: 06/29/2007] [Accepted: 06/29/2007] [Indexed: 11/22/2022]
Abstract
A facile synthesis of the C4-substituted isoquinolines 5a-c and 6a-c is described. Commercially available 4-bromoisoquinoline is converted to the α,β-unsaturated esters 8 and 10 on treatment with the appropriate acrylate ester under Heck reaction conditions. The saturated amides 5a-c were obtained from the reaction of ester 9 with the requisite primary amine. Similarly the unsaturated analogues 6a-c were prepared by reacting ester 10 with the appropriate amine. The cytotoxicity of the target molecules was evaluated in two tumour cell lines in vitro. Two compounds, 6b and 6c, showed sufficient activity in the human non-small cell lung cancer line NSCLC-N16-L16 to be worthy of further study.
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Affiliation(s)
- A Tsotinis
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Athens, Panepistimioupoli-Zografou, 157 71 Athens, Greece
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Boutin-Forzano S, Moreau D, Kalaboka S, Gay E, Bonnefoy X, Carrozzi L, Viegi G, Charpin D, Annesi-Maesano I. Reported prevalence and co-morbidity of asthma, chronic bronchitis and emphysema: a pan-European estimation. Int J Tuberc Lung Dis 2007; 11:695-702. [PMID: 17519104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/15/2023] Open
Abstract
OBJECTIVE Comparable population-based data exist at the European level for asthma but not for chronic obstructive pulmonary disease. Data from the World Health Organization's Large Analysis and Review of European Housing and Health Status Study conducted in random samples from eight European cities were used 1) to describe the prevalence of chronic bronchitis and emphysema (CBE) and asthma according to socio-demography, addictions, physical activities and body mass index; and 2) to identify the co-morbidities of these respiratory diseases. DESIGN A total of 6915 adults filled out a standardised questionnaire on health outcomes, including major respiratory diseases and individual characteristics. RESULTS Data showed that in the year preceding the survey, 3.3% of individuals had been diagnosed or treated for asthma and 6.2% for CBE. One per cent suffered simultaneously from both. Large variations were observed between cities. Physical activities and never smoking were inversely associated with CBE, independently of socio-cultural differences between the eight cities. Furthermore, both asthma and CBE were significantly related to several non-respiratory diseases, after adjustment for potential confounders. CONCLUSION Population-based data from eight European cities show that there is a link between chronic respiratory diseases and various non-respiratory co-morbidities that needs further investigation.
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Affiliation(s)
- S Boutin-Forzano
- Epidemiology of Allergic and Respiratory Diseases, Unité Mixte de Recherche en Santé 707, Institut National de la Santé et de la Recherche Médicale, Paris, France
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Lauzier B, Sicard P, Bouchot O, Delemasure S, Moreau D, Vergely C, Rochette L. A peroxynitrite decomposition catalyst: FeTPPS confers cardioprotection during reperfusion after cardioplegic arrest in a working isolated rat heart model. Fundam Clin Pharmacol 2007; 21:173-80. [PMID: 17391290 DOI: 10.1111/j.1472-8206.2007.00467.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Heart transplant is considered to be an extremely severe ischemia-reperfusion sequence. Post-ischemic dysfunction triggers multiple processes especially oxidative stress, but the mechanisms remain unclear. Free radical interactions lead to peroxynitrite generation, which seems to be involved in early post-transplant heart failure. The aim of this study was to evaluate the potential impact of a peroxynitrite decomposition catalyst: FeTPPS (5,10,15,20-tetrakis-[4-sulfonatophenyl]-porphyrinato-fer[III]) and pyruvate on myocardial functional recovery after cardioplegic arrest using an experimental protocol in rat hearts. Isolated working rat hearts were subjected to ischemia (4 h at 4 degrees C in cardioplegic solutions), followed by 45 min of reperfusion. Four groups were constituted: control, pyruvate: (2 mm) added to cardioplegic and Ringer-lactate solutions, FeTPPS: (10 microm) perfused during the reperfusion, and a combination of both treatments. Lactate dehydrogenase (LDH) activity was assessed during the reperfusion to evaluate the level of cardiac injury. Oxidative stress was evaluated on heart slices using a fluorescent probe: dihydroethidium, and the collagen content was assessed using picro-Sirius coloration. Global post-ischemic recovery in the control group was about 35% of pre-ischemic values. Results showed that addition of pyruvate led to an increase in myocardial function and to a decrease in LDH activity released during the reperfusion. FeTPPS protected against injury after cardioplegic arrest during reperfusion. No additive effect of the two treatments (pyruvate + FeTPPS) was observed. The collagen content was better preserved in the FeTPPS group than in the control and pyruvate groups. In conclusion, this study shows that peroxynitrite plays an important role in the functional and cellular alterations associated with cardiac ischemia-reperfusion sequences and confirms that pyruvate helped to preserve myocardial function. The use of the peroxynitrite decomposition catalyst (FeTPPS) may help to improve myocardial preservation during a prolonged ischemia sequence.
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Affiliation(s)
- Benjamin Lauzier
- Laboratoire de Physiopathologie et Pharmacologie Cardiovasculaire Expérimental, IFR n degrees 100, Faculté de Médecine et Pharmacie, 7 bd Jeanne d'Arc, BP 87900, 21079 Dijon Cedex, France.
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Langlois C, Péan D, Testa S, Béliard C, Moreau D, Lejus C. Le tube laryngé à usage unique LTD™: un nouveau dispositif supralaryngé. ACTA ACUST UNITED AC 2007; 26:197-201. [PMID: 17254744 DOI: 10.1016/j.annfar.2006.10.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2005] [Accepted: 10/03/2006] [Indexed: 10/23/2022]
Abstract
OBJECTIVES Clinical study of a new supraglottic single use airway device, the LTD with evaluation of insertion, efficiency during intermittent positive pressure ventilation and side effects. STUDY DESIGN Prospective, open clinical study. PATIENTS AND METHODS Fifty adult patients [33 years (26-55)] were scheduled for elective surgery (orthopaedic, plastic or maxillo-facial) under general anaesthesia less than two hours in dorsal position. No patient presented clinical sign of difficult airway management or risk of regurgitation. We studied easiness and delay for insertion, oro-pharyngeal leak pressure, peak airway pressure with positive pressure ventilation and side effects during the first 24 hours. RESULTS Insertion was successful in 94%. Median insertion time was 38 s (32-45). Difficulties of insertions were found in 25%. Oro-pharyngeal leak pressure, always superior than peak pressure [18 cmH2O (15-21)] increased from 26 cmH2O (22-32.5) to 34 cmH2O (29-40) at the end of the surgery. No case of gastric inflation, regurgitation or SpO2<95% were noticed. Moderate sore throat incidence was 6% in recovery room, 15% at the sixth hour and absent at the 24th hour. CONCLUSION The learning curve was low< or =10. Insertion is easy. The quality of airway protection allows secure positive pressure ventilation. Postoperative side effects are minor and transient.
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Affiliation(s)
- C Langlois
- Service d'anesthésie et de réanimation chirurgicale, Hôtel-Dieu, hôpital Mère-Enfants, CHU de Nantes, 44093 Nantes cedex 01, France
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Korandji C, Zeller M, Guilland JC, Vergely C, Sicard P, Duvillard L, Gambert P, Moreau D, Cottin Y, Rochette L. Asymmetric dimethylarginine (ADMA) and hyperhomocysteinemia in patients with acute myocardial infarction. Clin Biochem 2007; 40:66-72. [PMID: 17020756 DOI: 10.1016/j.clinbiochem.2006.08.004] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2006] [Revised: 08/11/2006] [Accepted: 08/16/2006] [Indexed: 11/17/2022]
Abstract
OBJECTIVES We sought to investigate the association between increased levels of asymmetric dimethylarginine (ADMA), an endogenous nitric oxide synthase inhibitor, and total plasma homocysteinemia (tHcy) in patients with acute myocardial infarction (AMI). DESIGN AND METHODS In 138 patients hospitalized for AMI <24 h on admission, serum levels of ADMA, its symmetric stereoisomer (SDMA) and tHcy were measured. RESULTS ADMA was positively associated with SDMA (p<0.001) and tHcy (p=0.03) but not with estimated glomerular filtration rates (eGFR, p=0.96), while tHcy strongly correlated with eGFR (p=0.002) and SDMA (p<0.001). By multiple linear regression, SDMA but not ADMA was independently associated with tHcy (p=0.005). CONCLUSION Our findings suggest that, in AMI patients, hyperhomocysteinemia is indirectly related to ADMA levels via renal function. Moreover, ADMA level was independent of traditional cardiovascular risk factors in AMI patients. Interestingly, our findings suggest that SDMA could be a good risk indicator for cardiovascular disease in AMI patients.
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Affiliation(s)
- Claudia Korandji
- Laboratory of Experimental Cardiovascular Pathophysiology and Pharmacology, IFR100, Faculties of Medecine and Pharmacy, University of Burgundy, Dijon, France
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38
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David N, Labbe-Devilliers C, Moreau D, Loussouarn D, Campion L. Lésions de métaplasie cylindriques atypiques (MCA) diagnostiquées par macrobiopsies assistées par aspiration : opportunité d’une exérèse chirurgicale ? ACTA ACUST UNITED AC 2006; 87:1671-7. [PMID: 17095961 DOI: 10.1016/s0221-0363(06)74145-2] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
OBJECTIVE FEA lesions group two histological types: columnar cell hyperplasia with atypia (CCHA) and columnar cell change with atypia (CCA). The increasing use of VAB has resulted in increased detection of isolated FEA lesions. The aim of this study was to define the best management possible for these patients: which cases may not need excision? MATERIAL AND METHODS From our database of 780 VABs carried out from 2000 to 2004, 59 patients with FEA were diagnosed. Cases in which no surgery was performed or all features were not available were excluded, thus excluding 19 cases. Forty patients with FEA were included. We reviewed clinical and mammographic characteristics, histological biopsy, and the corresponding surgically excised tissue features. RESULTS VAB yielded 25 cases of CCHA and 15 cases of CCA. Surgery revealed seven ductal carcinoma cases (four invasive, three in situ); nine benign lesions, and 24 with atypia (19 FEA and six atypical ductal hyperplasia). We found two features related to the risk of cancer: the presence and the size of hyperplasia. All carcinomas were found within the CCHA lesions. No cancer was yielded when size was less than 10 mm within CCA lesions and lesions that were totally removed. CONCLUSION We recommend surgical excision when CCHA greater than 10 mm is found on the VAB or it is incompletely removed. CCA lesions or CCHA less than 10 mm or totally removed may obviate systematic surgery.
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MESH Headings
- Biopsy, Needle
- Breast/pathology
- Breast Diseases/diagnosis
- Breast Diseases/pathology
- Breast Diseases/surgery
- Breast Neoplasms/diagnosis
- Breast Neoplasms/diagnostic imaging
- Breast Neoplasms/pathology
- Breast Neoplasms/surgery
- Carcinoma in Situ/diagnosis
- Carcinoma in Situ/pathology
- Carcinoma in Situ/surgery
- Carcinoma, Ductal, Breast/diagnosis
- Carcinoma, Ductal, Breast/diagnostic imaging
- Carcinoma, Ductal, Breast/pathology
- Carcinoma, Ductal, Breast/surgery
- Data Interpretation, Statistical
- Diagnosis, Differential
- Epithelial Cells/pathology
- Female
- Humans
- Hyperplasia
- Mammography
- Metaplasia
- Patient Selection
- Retrospective Studies
- Stereotaxic Techniques
- Vacuum
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Affiliation(s)
- N David
- Service de Radiologie, Centre René Gauducheaux, 44100 Nantes.
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39
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Grillo F, Kalaboka S, Moreau D, Pénard-Morand C, Piau JP, Annesi-Maesano I. Perception of Indoor Polluted Air Within 8 European Countries. Epidemiology 2006. [DOI: 10.1097/00001648-200611001-00939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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40
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Boutin-Forzano S, Moreau D, Gay E, Bonnefoy X, Charpin D, Annesi-Maesano I. 006 Prévalence et co-morbidité de l’asthme, de la bronchite chronique et de l’emphysème : une estimation paneuropéenne. Rev Mal Respir 2006. [DOI: 10.1016/s0761-8425(06)71834-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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41
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Sicard P, Oudot A, Guilland JC, Moreau D, Vergely C, Rochette L. Dissociation between vascular oxidative stress and cardiovascular function in Wistar Kyoto and spontaneously hypertensive rats. Vascul Pharmacol 2006; 45:112-21. [PMID: 16769252 DOI: 10.1016/j.vph.2006.04.001] [Citation(s) in RCA: 10] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2006] [Revised: 04/19/2006] [Accepted: 04/20/2006] [Indexed: 10/24/2022]
Abstract
It has not been completely demonstrated if hypertension may, in part, develop as a result of increased oxidative stress (OS), inflammation and little is known about the short-term effects of antioxidant therapy. This study was designed to appreciate the effect of 7 days vitamin C-enriched diet (5 g/kg/day) on hemodynamic function and vascular OS in normotensive Wistar Kyoto rats and hypertensive rats (SHR). Aorta NAD(P)H oxidase activity was determinate and free radicals evaluated by electron spin resonance with a spin probe CP-H. Matrix metalloproteinase-1 (MMP-1) and monocyte chemoattractant protein-1 (MCP-1) expression were measured. The treatment with vitamin C did not change arterial pressure in SHR but prevented the increase in OS levels in SHR aortas. MMP-1 and MCP-1 expressions were more intense in the media of SHR aortas than in those of WKY rats but these expressions were not modified by vitamin C-pretreatment. Vitamin C-pretreatment was not able to protect heart against in vitro ischemia-reperfusion dysfunctions. These data may suggest that treatment with high doses of vitamin C in SHR can limit over-production of reactive oxygen species; however this effect was not accompanied with changes in arterial pressure and protection against I-R dysfunctions. Dissociation between vascular oxidative stress and cardiovascular function may be evoked.
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Affiliation(s)
- Pierre Sicard
- Laboratoire de Physiopathologie et Pharmacologie Cardio-vasculaires Expérimentales, IFR no. 100, Facultés de Médecine et de Pharmacie, 7, Boulevard Jeanne d'Arc, 21000 Dijon, France.
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42
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Gambert S, Vergely C, Filomenko R, Moreau D, Bettaieb A, Opie LH, Rochette L. Adverse effects of free fatty acid associated with increased oxidative stress in postischemic isolated rat hearts. Mol Cell Biochem 2006; 283:147-52. [PMID: 16444597 DOI: 10.1007/s11010-006-2518-9] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2005] [Accepted: 08/29/2005] [Indexed: 10/25/2022]
Abstract
The mechanisms of the adverse effects of free fatty acids on the ischemic-reperfused myocardium are not fully understood. Long-chain fatty acids, including palmitate, uncouple oxidative phosphorylation and should therefore promote the formation of oxygen-derived free radicals, with consequent adverse effects. Conversely, the antianginal agent trimetazidine (TMZ), known to inhibit cardiac fatty acid oxidation, could hypothetically lessen the formation of reactive oxygen species (ROS) and thus improve reperfusion mechanical function. Isolated perfused rat hearts underwent 30 min of total global ischemia followed by 30 min of reperfusion. Hearts were perfused with glucose 5.5 mmol/l or palmitate 1.5 mmol/l with or without TMZ (100 micromol/l). Ascorbyl free radical (AFR) release during perfusion periods was measured by electron spin resonance as a marker of oxidative stress. Post-ischemic recovery in the palmitate group of heart was lower than in the glucose group with a marked rise in diastolic tension and reduction in left ventricular developed pressure (Glucose: 85 +/- 11 mmHg; Palmitate: 10 +/- 6 mmHg; p < 0.001). TMZ decreased diastolic tension in both glucose- and in palmitate-perfused hearts. Release of AFR within the first minute of reperfusion was greater in palmitate-perfused hearts and in hearts perfused with either substrate, this marker of oxidative stress was decreased by TMZ (expressed in arbitrary units/ml; respectively: 8.49 +/- 1.24 vs. 1.06 +/- 0.70 p < 0.05; 12.47 +/- 2.49 vs. 3.37 +/- 1.29 p < 0.05). Palmitate increased the formation of ROS and reperfusion contracture. TMZ, a potential inhibitor of palmitate-induced mitochondrial uncoupling, decreased the formation of free radicals and improved postischemic mechanical dysfunction. The novel conclusion is that adverse effects of fatty acids on ischemic-reperfusion injury may be mediated, at least in part, by oxygen-derived free radicals.
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43
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Mantica P, Van Eester D, Garbet X, Imbeaux F, Laborde L, Mantsinen M, Marinoni A, Mazon D, Moreau D, Hawkes N, Joffrin E, Kiptily V, Pinches S, Salmi A, Sharapov S, Thyagaraja A, Voitsekhovitch I, de Vries P, Zastrow KD. Probing internal transport barriers with heat pulses in JET. Phys Rev Lett 2006; 96:095002. [PMID: 16606270 DOI: 10.1103/physrevlett.96.095002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2005] [Indexed: 05/08/2023]
Abstract
The first electron temperature modulation experiments in plasmas characterized by strong and long-lasting electron and ion internal transport barriers (ITB) have been performed in JET using ion cyclotron resonance heating in mode conversion scheme. The ITB is shown to be a well localized narrow layer with low heat diffusivity, characterized by subcritical transport and loss of stiffness. In addition, results from cold pulse propagation experiments suggest a second order transition process for ITB formation.
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Affiliation(s)
- P Mantica
- Istituto di Fisica del Plasma P.Caldirola, Associazione Euratom-ENEA-CNR, Milano, Italy
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MacFarland D, Hue-Roye K, Carter S, Moreau D, Barry J, Moulds MK, Lomas-Francis C, Reid ME. Case report:DNA testing resolves unusual results in the Dombrock system. Immunohematology 2006; 22:69-71. [PMID: 16813468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Typing for antigens in the Dombrock blood group system and identifying the corresponding antibodies are notoriously difficult tasks. The reagents are scarce and the antibodies are weakly reactive. When RBCs from family members of a patient with an antibody to a high-prevalence Dombrock antigen were tested for compatibility,an unusual pattern of inheritance was observed:RBCs from the patient's children and one niece, in addition to those from some of the patient's siblings,were compatible. This prompted the performance of DNA-based assays for DO alleles and the results obtained were consistent with and explained the compatibility test results. It was possible to study this large kindred because of the cooperation of family members, hospital personnel, and reference laboratory staff.
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Affiliation(s)
- D MacFarland
- Baptist Memorial Hospital, Memphis, Tennessee, USA
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45
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Piau JP, Moreau D, Ben Kheder A, Matricardi P, Khaltaev N, Bousquet J, Annesi-Maesano I. Questionnaire on health systems and national resources for control of respiratory health in low-income countries. Int J Tuberc Lung Dis 2005; 9:1403-8. [PMID: 16466065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/06/2023] Open
Abstract
BACKGROUND Due to increased exposure to risk factors such as ageing and tobacco smoking, chronic respiratory diseases (CRDs) have become a major cause of morbidity and mortality worldwide. Data on CRDs and their management in developing countries (DC) are nevertheless sparse and not comparable. OBJECTIVE To implement and validate a standardised self-administered questionnaire to be proposed to health authorities to assess the resources of their health system for dealing with respiratory diseases. METHODS The questionnaire concerned social security, description of the health system, human resources available within the system, initial training and continuing education of health personnel, existence of a list of essential drugs, vaccine coverage and specific resources involved in CRD and tobacco control. RESULTS The validity of the criteria of the questionnaire was tested in Reunion Island, where health data are accessible and reliable, and was found to be satisfactory. Its acceptability and relevance were deemed appropriate in Tunisia and in Mozambique. CONCLUSION The self-administered questionnaire is a simple, reliable and cheap tool. Although designed for the study of respiratory diseases, it can easily be transposed and adapted to other pathologies.
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Affiliation(s)
- J P Piau
- Department of Epidemiology and Public Health Allergic and Respiratory Diseases (EPAR), INSERM U472, Villejuif, Paris, France
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Raherison C, Pénard-Morand C, Moreau D, Caillaud D, Charpin D, Kopferschmitt C, Lavaud D, Taytard A, Tunon-de-Lara J, Annesi-Maesano I. 082 Does tobacco smoke exposure influence allergie sensitization in children, according to maternal atopy? Rev Mal Respir 2005. [DOI: 10.1016/s0761-8425(05)92494-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Felton R, Joffrin E, Murari A, Zabeo L, Sartori F, Piccolo F, Farthing J, Budd T, Dorling S, McCullen P, Harling J, Dalley S, Goodyear A, Stephen A, Card P, Bright M, Lucock R, Jones E, Griph S, Hogben C, Beldishevski M, Buckley M, Davis J, Young I, Hemming O, Wheatley M, Heesterman P, Lloyd G, Walters M, Bridge R, Leggate H, Howell D, Zastrow KD, Giroud C, Coffey I, Hawkes N, Stamp M, Barnsley R, Edlington T, Guenther K, Gowers C, Popovichef S, Huber A, Ingesson C, Mazon D, Moreau D, Alves D, Sousa J, Riva M, Barana O, Bolzonella T, Valisa M, Innocente P, Zerbini M, Bosak K, Blum J, Vitale E, Crisanti F, de la Luna E, Sanchez J. Real-time measurement and control at JET experiment control. Fusion Engineering and Design 2005. [DOI: 10.1016/j.fusengdes.2005.06.286] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Sicard P, Lauzier B, Oudot A, Busseuil D, Collin B, Duvillard L, Moreau D, Vergely C, Rochette L. [A treatment with rosuvastatin induced a reduction of arterial pressure and a decrease of oxidative stress in spontaneously hypertensive rats]. Arch Mal Coeur Vaiss 2005; 98:804-8. [PMID: 16220751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
The aim of this study was to appreciate consequences of rosuvastatin administration on hemodynamic function, vascular oxidative stress and ischemia/reperfusion disorders in normotensive and hypertensive rats. At 10 weeks of age, spontaneously hypertensive rats (SHR, n=20) and normotensive Wistar Kyoto male rats (WKY, n=20) were divided into four groups and given, either vehicle or 10 mg/kg/day of rosuvastatin by gavage for 3 weeks. Systolic blood pressure was assessed every week. At the end of these treatments, vascular NADPH oxidase activity was evaluated by chemiluminescence (lucigenin 0.5 microM). Hearts were isolated and perfused according to the Langendorff method and were subjected to 30 min of global ischemia. Reactive oxygen species (ROS) produced during reperfusion were quantified by electron spin resonance (ESR) spectroscopy using a spin probe (CP-H, 1 mM). After one week of treatment, rosuvastatin reduced the arterial pressure in SHR rats (180.3 +/- 2.1, SHR vs 169.7 +/- 2.3 mmHg, SHR+rosuvastatin; p < 0.01), without lowering plasma cholesterol levels; these effects were not observed in WKY. NADPH activity was 25% higher in control SHR rat aortas compared to control WKY, and was reduced by rosuvastatin in SHR rats. In isolated rat hearts subjected to ischemia/reperfusion sequences, there was a deterioration in functional parameters in control SHR compared to control WKY hearts. Rosuvastatin decreased post-ischemic contracture in WKY hearts by 50% (41.5 +/- 7.5, WKY control vs 18.4 +/- 4.6 mmHg, WKY+rosuvastatin; p < 0.01) and increased left ventricular developed pressure. This beneficial effect was accompanied by a decrease in ROS detected by ESR during reperfusion (312.5 +/- 45.3, WKY control; vs 219.3 +/- 22.9 AUC/mL, WKY+rosuvastatin; p < 0.05). In conclusion, these results are in accordance with the hypothesis that oxidative stress plays a crucial role in the pathogenesis of cardiovascular diseases including hypertension, and demonstrate the beneficial effects of rosuvastatin.
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Affiliation(s)
- P Sicard
- Laboratoire de physiopathologie et pharmacologie cardiovasculaires expérimentales, facultés de médecine & pharmacie, Dijon.
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Laurent G, Dentan G, Moreau D, Zeller M, Laurent Y, Vincent-Martin M, Lhuillier I, Makki H, Wolf JE, Cottin Y. [Atrial fibrillation during myocardial infarction with and without ST segment elevation]. Arch Mal Coeur Vaiss 2005; 98:608-14. [PMID: 16007813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
INTRODUCTION The occurrence of atrial fibrillation (AF) in the acute phase of myocardial infarction with ST segment elevation is common and responsible for an excess hospital mortality. The aim of this work was to define the incidence, predictive factors, and the prognostic impact of AF during MI with and without raised ST segment in the RICO study. PATIENTS AND METHODS Between January 2001 and July 2003, 1701 patients were included in this study: 130 (7.6%) had AF in the first 24 hours of management (AF+ group); 1571 (92.4%) remained in sinus rhythm (AF- group). RESULTS Among the 1701 patients included in this study, 1197 (70.4%) had MI with raised ST and 504 (29.6%) had MI without raised ST. The incidence of AF was identical whatever the type of MI (7.6% with raised ST versus 7.7% without, p=0.334). The presence of Killip class >2 on admission and chronic obstructive pulmonary disease were independent predictive factors for the occurrence of AF (OR=3.84, p=0.007, and OR=2.47, p=0.014 respectively). The presence of AF was significantly associated with the occurrence of ventricular arrhythmia and/or cardiovascular mortality during admission in the non-selected MI population whatever the type of MI (raised ST ; AF+; 34% and AF-; 18%, p<0.01 versus without raised ST; AF+; 36% and AF-; 16%, p = 0.01). CONCLUSION This study provides evidence that the incidence of AF during the first 24 hours of MI, as well as its poor prognosis, are identical whether or not there is ST segment elevation.
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Affiliation(s)
- G Laurent
- Département de cardiologie, hôpital Bocage, Dijon, France
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50
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Tissier C, Vandroux D, Devillard L, Brochot A, Moreau D, Rochette L, Athias P. Substrate dependence of the postischemic cardiomyocyte recovery: Dissociation between functional, metabolic and injury markers. Mol Cell Biochem 2005; 273:43-55. [PMID: 16013439 DOI: 10.1007/s11010-005-7375-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Defining the substrate that influences the most favourably the myocardial post-ischemic recovery is subject of debates, due to dissociation between functional and biochemical benefits. Hence, we studied the effects of either glucose or different fatty acids on the functional and metabolic recovery of post-ischemic cardiomyocytes in a substrate-free hypoxia model of simulated ischemia-reperfusion. Rat cardiomyocytes were submitted to a 2.5 h simulated ischemia followed by a 2 h reoxygenation without substrate (control), or with either glucose, octanoic acid, oleic acid, or elaidic acid. During simulated ischemia, electromechanical function gradually disappeared while the cellular viability and mitochondrial function declined. During control simulated reperfusion, cardiomyocytes recovered near normal function but a significant reduction in the action potential amplitude and rate persisted. The addition of glucose or oleic acid during simulated reperfusion promoted a faster, better and sustain functional recovery. Amongst the fatty acids, the functional recovery was slower with elaidic and octanoic acids as compared with oleic acid. The mitochondrial function was better improved during simulated reperfusion with glucose than with the tested fatty acids, among which elaidic acid was the less unfavourable. Paradoxically, the addition of whichever substrate during simulated reperfusion tended to worsen the cellular viability. Thus, cardiomyocytes recovery strongly relies on the characteristics of the substrate supplied at the onset of simulated reperfusion: glucidic or lipidic nature, chain-length, insaturation degree. Moreover, these data suggest that defining the appropriateness of a given substrate for the post-ischemic cardiomyocyte recovery is closely related to the functional and the biological endpoints in consideration.
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Affiliation(s)
- Cindy Tissier
- Laboratory of Experimental Cardiovascular Physiopathology and Pharmacology, IFR 100, Institute of Cardiovascular Research, University Hospital Center, Dijon, France
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