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Meziane H, Birling MC, Wendling O, Leblanc S, Dubos A, Selloum M, Pavlovic G, Sorg T, Kalscheuer VM, Billuart P, Laumonnier F, Chelly J, van Bokhoven H, Herault Y. Large-Scale Functional Assessment of Genes Involved in Rare Diseases with Intellectual Disabilities Unravels Unique Developmental and Behaviour Profiles in Mouse Models. Biomedicines 2022; 10:biomedicines10123148. [PMID: 36551904 PMCID: PMC9775489 DOI: 10.3390/biomedicines10123148] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Revised: 11/29/2022] [Accepted: 12/02/2022] [Indexed: 12/12/2022] Open
Abstract
Major progress has been made over the last decade in identifying novel genes involved in neurodevelopmental disorders, although the task of elucidating their corresponding molecular and pathophysiological mechanisms, which are an essential prerequisite for developing therapies, has fallen far behind. We selected 45 genes for intellectual disabilities to generate and characterize mouse models. Thirty-nine of them were based on the frequency of pathogenic variants in patients and literature reports, with several corresponding to de novo variants, and six other candidate genes. We used an extensive screen covering the development and adult stages, focusing specifically on behaviour and cognition to assess a wide range of functions and their pathologies, ranging from basic neurological reflexes to cognitive abilities. A heatmap of behaviour phenotypes was established, together with the results of selected mutants. Overall, three main classes of mutant lines were identified based on activity phenotypes, with which other motor or cognitive deficits were associated. These data showed the heterogeneity of phenotypes between mutation types, recapitulating several human features, and emphasizing the importance of such systematic approaches for both deciphering genetic etiological causes of ID and autism spectrum disorders, and for building appropriate therapeutic strategies.
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Affiliation(s)
- Hamid Meziane
- Université de Strasbourg, CNRS, INSERM, Institut Clinique de la Souris (ICS), PHENOMIN, CELPHEDIA, 1 rue Laurent Fries, 67404 Illkirch, France
| | - Marie-Christine Birling
- Université de Strasbourg, CNRS, INSERM, Institut Clinique de la Souris (ICS), PHENOMIN, CELPHEDIA, 1 rue Laurent Fries, 67404 Illkirch, France
| | - Olivia Wendling
- Université de Strasbourg, CNRS, INSERM, Institut Clinique de la Souris (ICS), PHENOMIN, CELPHEDIA, 1 rue Laurent Fries, 67404 Illkirch, France
| | - Sophie Leblanc
- Université de Strasbourg, CNRS, INSERM, Institut Clinique de la Souris (ICS), PHENOMIN, CELPHEDIA, 1 rue Laurent Fries, 67404 Illkirch, France
| | - Aline Dubos
- Université de Strasbourg, CNRS, INSERM, Institut Clinique de la Souris (ICS), PHENOMIN, CELPHEDIA, 1 rue Laurent Fries, 67404 Illkirch, France
- Université de Strasbourg, CNRS, INSERM, Institut de Génétique et de Biologie Moléculaire et Cellulaire, 1 rue Laurent Fries, 67404 Illkirch, France
| | - Mohammed Selloum
- Université de Strasbourg, CNRS, INSERM, Institut Clinique de la Souris (ICS), PHENOMIN, CELPHEDIA, 1 rue Laurent Fries, 67404 Illkirch, France
| | - Guillaume Pavlovic
- Université de Strasbourg, CNRS, INSERM, Institut Clinique de la Souris (ICS), PHENOMIN, CELPHEDIA, 1 rue Laurent Fries, 67404 Illkirch, France
| | - Tania Sorg
- Université de Strasbourg, CNRS, INSERM, Institut Clinique de la Souris (ICS), PHENOMIN, CELPHEDIA, 1 rue Laurent Fries, 67404 Illkirch, France
| | - Vera M. Kalscheuer
- Max Planck Institute for Molecular Genetics, Research Group Development and Disease, Ihnestr. 63-73, 14195 Berlin, Germany
| | - Pierre Billuart
- Institute of Psychiatry and Neuroscience of Paris (IPNP), Université de Paris, INSERM U1266, “Genetic and Development of Cerebral Cortex”, 75014 Paris, France
- GHU Paris Psychiatrie et Neurosciences, Hôpital Sainte Anne, 75014 Paris, France
| | - Frédéric Laumonnier
- UMR1253, iBrain, University of Tours, Inserm, 37032 Tours, France
- Service de Génétique, Centre Hospitalier Régional Universitaire, 37044 Tours, France
| | - Jamel Chelly
- Université de Strasbourg, CNRS, INSERM, Institut de Génétique et de Biologie Moléculaire et Cellulaire, 1 rue Laurent Fries, 67404 Illkirch, France
| | - Hans van Bokhoven
- Department of Cognitive Neuroscience, Radboudumc, 6500 HB Nijmegen, The Netherlands
- Department of Human Genetics, Radboudumc, 6500 HB Nijmegen, The Netherlands
- Donders Institute for Brain, Cognition, and Behaviour, Centre for Neuroscience, 6525 AJ Nijmegen, The Netherlands
| | - Yann Herault
- Université de Strasbourg, CNRS, INSERM, Institut Clinique de la Souris (ICS), PHENOMIN, CELPHEDIA, 1 rue Laurent Fries, 67404 Illkirch, France
- Université de Strasbourg, CNRS, INSERM, Institut de Génétique et de Biologie Moléculaire et Cellulaire, 1 rue Laurent Fries, 67404 Illkirch, France
- Correspondence: ; Tel.: +33-388-65-5715
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2
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Grimaldi D, Legriel S, Pichon N, Colardelle P, Leblanc S, Canouï-Poitrine F, Salem OBH, Muller G, de Prost N, Herrmann S, Marque S, Baron A, Sauneuf B, Messika J, Dior M, Creteur J, Bedos JP, Boutin E, Cariou A. Ischemic injury of the upper gastrointestinal tract after out-of-hospital cardiac arrest: a prospective, multicenter study. Crit Care 2022; 26:59. [PMID: 35287719 PMCID: PMC8919548 DOI: 10.1186/s13054-022-03939-9] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 03/02/2022] [Indexed: 11/12/2022] Open
Abstract
Background The consequences of cardiac arrest (CA) on the gastro-intestinal tract are poorly understood. We measured the incidence of ischemic injury in the upper gastro-intestinal tract after Out-of-hospital CA (OHCA) and determined the risk factors for and consequences of gastrointestinal ischemic injury according to its severity.
Methods Prospective, non-controlled, multicenter study in nine ICUs in France and Belgium conducted from November 1, 2014 to November 30, 2018. Included patients underwent an esophago-gastro-duodenoscopy 2 to 4 d after OHCA if still intubated and the presence of ischemic lesions of the upper gastro-intestinal tract was determined by a gastroenterologist. Lesions were a priori defined as severe if there was ulceration or necrosis and moderate if there was mucosal edema or erythema. We compared clinical and cardiac arrest characteristics of three groups of patients (no, moderate, and severe lesions) and identified variables associated with gastrointestinal ischemic injury using multivariate regression analysis. We also compared the outcomes (organ failure during ICU stay and neurological status at hospital discharge) of the three groups of patients. Results Among the 214 patients included in the analysis, 121 (57%, 95% CI 50–63%) had an upper gastrointestinal ischemic lesion, most frequently on the fundus. Ischemic lesions were severe in 55/121 (45%) patients. In multivariate regression, higher adrenaline dose during cardiopulmonary resuscitation (OR 1.25 per mg (1.08–1.46)) was independently associated with increased odds of severe upper gastrointestinal ischemic lesions; previous proton pump inhibitor use (OR 0.40 (0.14–1.00)) and serum bicarbonate on day 1 (OR 0.89 (0.81–0.97)) were associated with lower odds of ischemic lesions. Patients with severe lesions had a higher SOFA score during the ICU stay and worse neurological outcome at hospital discharge. Conclusions More than half of the patients successfully resuscitated from OHCA had upper gastrointestinal tract ischemic injury. Presence of ischemic lesions was independently associated with the amount of adrenaline used during resuscitation. Patients with severe lesions had higher organ failure scores during the ICU stay and a worse prognosis. Clinical Trial RegistrationNCT02349074. Supplementary Information The online version contains supplementary material available at 10.1186/s13054-022-03939-9.
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Affiliation(s)
- D Grimaldi
- Department of Intensive Care CUB-Erasme, Route de Lennik, 808, Université Libre de Bruxelles (ULB), 1070, Brussels, Belgium. .,AfterROSC Network Group, Paris, France.
| | - S Legriel
- AfterROSC Network Group, Paris, France.,Medico-Surgical Intensive Care Unit, Versailles Hospital, Le Chesnay, Paris, France
| | - N Pichon
- AfterROSC Network Group, Paris, France.,Medico-surgical Intensive Care Unit, General Hospital Center, Brive-la-Gaillarde, France
| | - P Colardelle
- Gastroenterology, C.H. Versailles, Le Chesnay, France
| | - S Leblanc
- Gastroenterology, APHP, Hôpital Cochin, Paris, France
| | - F Canouï-Poitrine
- Unité de Recherche Clinique (URC Mondor), Assistance Publique des Hôpitaux de Paris (AP-HP), Hôpitaux Universitaires Henri Mondor, Créteil, France.,INSERM, IMRB, Equipe CEpiA (Clinical Epidemiology and Ageing), University Paris Est Creteil, Créteil, France
| | - O Ben Hadj Salem
- INSERM, IMRB, Equipe CEpiA (Clinical Epidemiology and Ageing), University Paris Est Creteil, Créteil, France.,Intensive Care Unit, Centre Hospitalier Intercommunal Meulan - Les Mureaux, Meulan en Yvelines, France
| | - G Muller
- AfterROSC Network Group, Paris, France.,Intensive Care Unit, Centre Hospitalier Intercommunal Meulan - Les Mureaux, Meulan en Yvelines, France.,ICU, Centre Hospitalier Régional Orleans, Orléans, France
| | - N de Prost
- Medical Intensive Care Unit, Hôpitaux Universitaires Henri-Mondor, Assistance Publique - Hôpitaux de Paris (AP-HP), Créteil, France.,Université Paris-Est Créteil Val de Marne, Créteil, France.,Groupe de Recherche Clinique CARMAS, Université Paris Est-Créteil, Créteil, France
| | - S Herrmann
- Gastro-enterology, Centre Hospitalier Régional d'Orleans, Orléans, France
| | - S Marque
- ICU, Centre Hospitalier Sud Francilien, Corbeil-Essonnes, France
| | - A Baron
- Gastroenterology, Centre Hospitalier Sud Francilien, Corbeil-Essonnes, France
| | - B Sauneuf
- AfterROSC Network Group, Paris, France.,ICU, Chpc - Centre Hospitalier Public Du Cotentin : Hospital Louis Pasteur, Cherbourg-en-Cotentin, France
| | - J Messika
- APHP.Nord-Université de Paris, Medico-surgical ICU, Hôpital Louis Mourier, Colombes, France.,INSERM, PHERE UMRS 1152, Université de Paris, Paris, France
| | - M Dior
- DMU ESPRIT, Department of Gastroenterology, AP-HP, Hopital Louis Mourier, 92700, Colombes, France
| | - J Creteur
- Department of Intensive Care CUB-Erasme, Route de Lennik, 808, Université Libre de Bruxelles (ULB), 1070, Brussels, Belgium
| | - J P Bedos
- Medico-Surgical Intensive Care Unit, Versailles Hospital, Le Chesnay, Paris, France
| | - E Boutin
- Unité de Recherche Clinique (URC Mondor), Assistance Publique des Hôpitaux de Paris (AP-HP), Hôpitaux Universitaires Henri Mondor, Créteil, France.,INSERM, IMRB, Equipe CEpiA (Clinical Epidemiology and Ageing), University Paris Est Creteil, Créteil, France
| | - A Cariou
- AfterROSC Network Group, Paris, France.,Medical Intensive Care Unit, Cochin University Hospital (APHP), Paris, France; University of Paris - Medical School, Paris, France.,University of Paris - Medical School, Paris, France
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3
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Imbert A, Rompais M, Selloum M, Castelli F, Mouton-Barbosa E, Brandolini-Bunlon M, Chu-Van E, Joly C, Hirschler A, Roger P, Burger T, Leblanc S, Sorg T, Ouzia S, Vandenbrouck Y, Médigue C, Junot C, Ferro M, Pujos-Guillot E, de Peredo AG, Fenaille F, Carapito C, Herault Y, Thévenot EA. ProMetIS, deep phenotyping of mouse models by combined proteomics and metabolomics analysis. Sci Data 2021; 8:311. [PMID: 34862403 PMCID: PMC8642540 DOI: 10.1038/s41597-021-01095-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Accepted: 11/02/2021] [Indexed: 01/20/2023] Open
Abstract
Genes are pleiotropic and getting a better knowledge of their function requires a comprehensive characterization of their mutants. Here, we generated multi-level data combining phenomic, proteomic and metabolomic acquisitions from plasma and liver tissues of two C57BL/6 N mouse models lacking the Lat (linker for activation of T cells) and the Mx2 (MX dynamin-like GTPase 2) genes, respectively. Our dataset consists of 9 assays (1 preclinical, 2 proteomics and 6 metabolomics) generated with a fully non-targeted and standardized approach. The data and processing code are publicly available in the ProMetIS R package to ensure accessibility, interoperability, and reusability. The dataset thus provides unique molecular information about the physiological role of the Lat and Mx2 genes. Furthermore, the protocols described herein can be easily extended to a larger number of individuals and tissues. Finally, this resource will be of great interest to develop new bioinformatic and biostatistic methods for multi-omics data integration.
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Affiliation(s)
- Alyssa Imbert
- CEA, LIST, Laboratoire Sciences des Données et de la Décision, IFB, MetaboHUB, Gif-sur-Yvette, France.
- IFB-core, UMS3601, Genoscope, Evry, France.
| | - Magali Rompais
- Laboratoire de Spectrométrie de Masse BioOrganique, Université de Strasbourg, CNRS, IPHC UMR 7178, ProFI, Strasbourg, France
| | - Mohammed Selloum
- Université de Strasbourg, CNRS, INSERM, Institut Clinique de la Souris, Phenomin-ICS, Illkirch, France
| | - Florence Castelli
- Université Paris Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (MTS), MetaboHUB, Gif-sur-Yvette, France
| | - Emmanuelle Mouton-Barbosa
- Institut de Pharmacologie et Biologie Structurale (IPBS), Université de Toulouse, CNRS, UPS, ProFI, Toulouse, France
| | - Marion Brandolini-Bunlon
- Université Clermont Auvergne, INRAE, UNH, Plateforme d'Exploration du Métabolisme, MetaboHUB, Clermont-Ferrand, France
| | - Emeline Chu-Van
- Université Paris Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (MTS), MetaboHUB, Gif-sur-Yvette, France
| | - Charlotte Joly
- Université Clermont Auvergne, INRAE, UNH, Plateforme d'Exploration du Métabolisme, MetaboHUB, Clermont-Ferrand, France
| | - Aurélie Hirschler
- Laboratoire de Spectrométrie de Masse BioOrganique, Université de Strasbourg, CNRS, IPHC UMR 7178, ProFI, Strasbourg, France
| | - Pierrick Roger
- CEA, LIST, Laboratoire Intelligence Artificielle et Apprentissage Automatique, MetaboHUB, Gif-sur-Yvette, France
| | - Thomas Burger
- Université Grenoble Alpes, INSERM, CEA, UMR BioSanté U1292, FR2048, ProFI, Grenoble, France
| | - Sophie Leblanc
- Université de Strasbourg, CNRS, INSERM, Institut Clinique de la Souris, Phenomin-ICS, Illkirch, France
| | - Tania Sorg
- Université de Strasbourg, CNRS, INSERM, Institut Clinique de la Souris, Phenomin-ICS, Illkirch, France
| | - Sadia Ouzia
- Université Paris Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (MTS), MetaboHUB, Gif-sur-Yvette, France
| | - Yves Vandenbrouck
- Université Grenoble Alpes, INSERM, CEA, UMR BioSanté U1292, FR2048, ProFI, Grenoble, France
| | - Claudine Médigue
- IFB-core, UMS3601, Genoscope, Evry, France
- Laboratoire d'Analyses Bioinformatique en Génomique et Métabolisme (LABGeM), CNRS & CEA/DRF/IFJ, UMR8030, Evry, France
| | - Christophe Junot
- Université Paris Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (MTS), MetaboHUB, Gif-sur-Yvette, France
| | - Myriam Ferro
- Université Grenoble Alpes, INSERM, CEA, UMR BioSanté U1292, FR2048, ProFI, Grenoble, France
| | - Estelle Pujos-Guillot
- Université Clermont Auvergne, INRAE, UNH, Plateforme d'Exploration du Métabolisme, MetaboHUB, Clermont-Ferrand, France
| | - Anne Gonzalez de Peredo
- Institut de Pharmacologie et Biologie Structurale (IPBS), Université de Toulouse, CNRS, UPS, ProFI, Toulouse, France
| | - François Fenaille
- Université Paris Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (MTS), MetaboHUB, Gif-sur-Yvette, France
| | - Christine Carapito
- Laboratoire de Spectrométrie de Masse BioOrganique, Université de Strasbourg, CNRS, IPHC UMR 7178, ProFI, Strasbourg, France
| | - Yann Herault
- Université de Strasbourg, CNRS, INSERM, Institut Clinique de la Souris, Phenomin-ICS, Illkirch, France
- Université de Strasbourg, CNRS, INSERM, Institut de Génétique Biologie Moléculaire et Cellulaire, IGBMC, Illkirch, France
| | - Etienne A Thévenot
- Université Paris Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (MTS), MetaboHUB, Gif-sur-Yvette, France.
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4
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Leblanc S, Roux J, Tillaut H, Le Page E, Leray E. Disease-modifying therapy usage in patients with multiple sclerosis in France: A 6-year population-based study. Rev Neurol (Paris) 2021; 177:1250-1261. [PMID: 34253346 DOI: 10.1016/j.neurol.2021.04.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [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: 01/28/2021] [Revised: 04/21/2021] [Accepted: 04/23/2021] [Indexed: 11/19/2022]
Abstract
BACKGROUND Most data regarding the use of disease-modifying therapies (DMTs) in multiple sclerosis (MS) comes from clinical series or regional databases that have a risk of recruitment bias. French health administrative data offers the significant advantage of being extensive in regards to both MS population coverage and DMT prescriptions. OBJECTIVES To describe patterns of DMTs usage at the level of the entire French population of MS patients from 2010 to 2015. METHODS MS patients were identified during a 6-year study period via the French national health data system (covering 97% of the general population) and characteristics of patients who received at least one treatment were compared to those that never received treatment over the indicated period. A state sequence analysis was performed to study in a longitudinal way MS patients who started DMTs in 2010 and then to classify them into groups of similar therapeutic patterns. DMTs were categorized into first-line, second-line and off-label use, and included untreated periods for at least six months. Groups that were obtained were described and compared using a multinomial logistic regression. RESULTS A total of 112,415 patients with MS were identified, of whom 54.0% received at least one DMT over the 6 years. The probability of being treated significantly decreased with age. Comorbidities and physical limitations appeared to be more frequent in not treated patients than in treated patients. Significant differences were also found between the two groups regarding the use of healthcare services (hospitalizations and visits to general practitioner, neurologist and nurse). Based on the 6-year therapeutic sequences, a four-cluster typology was obtained on the 4,474 patients who started a DMT in 2010. The first group which consisted of more than half of the patients (57.0%) mainly used first-line DMTs. The second group (13.1%) represented patients with second-line DMTs whereas the third group (7.3%) was comprised of off-label users and the last group (22.6%) was composed of MS patients who received no or minimal treatments. Classification into one of these groups was associated with patient's age, long-term disease status, pregnancy occurrence, estimated level of disability, levels of care (visits to a neurologist, nurse and/or physiotherapist and hospital/rehabilitation stays) and occurrence of death. CONCLUSIONS The exhaustive population-based dataset from the French national health data system gave the opportunity to provide a detailed description regarding the use of DMTs for MS at national level. The innovative method of state sequence analysis allowed obtaining four homogeneous groups of patients among thousands of longitudinal therapeutic sequences. The predominant place of first-line treatments was confirmed even if the type of first-line treatments has probably changed since 2015.
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Affiliation(s)
- S Leblanc
- Univ Rennes, EHESP, REPERES (Pharmacoepidemiology and health services research) - EA 7449, 15, avenue du Professeur Léon Bernard, CS 74312, 35000 Rennes, France.
| | - J Roux
- Univ Rennes, EHESP, REPERES (Pharmacoepidemiology and health services research) - EA 7449, 15, avenue du Professeur Léon Bernard, CS 74312, 35000 Rennes, France
| | - H Tillaut
- Univ Rennes, EHESP, REPERES (Pharmacoepidemiology and health services research) - EA 7449, 15, avenue du Professeur Léon Bernard, CS 74312, 35000 Rennes, France
| | - E Le Page
- Inserm CIC-P 1414, Rennes University Hospital, Rennes University, 2, rue Henri le Guilloux, 35000 Rennes, France; Neurology department, Rennes University Hospital, Rennes University, 2, rue Henri le Guilloux, 35000 Rennes, France
| | - E Leray
- Univ Rennes, EHESP, REPERES (Pharmacoepidemiology and health services research) - EA 7449, 15, avenue du Professeur Léon Bernard, CS 74312, 35000 Rennes, France; Inserm CIC-P 1414, Rennes University Hospital, Rennes University, 2, rue Henri le Guilloux, 35000 Rennes, France
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5
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Alnasser S, MacDonald D, Atoui R, Shurrab M, Alqahtani A, Nalla B, Cote S, Mireau J, Spadofore J, Hannessey H, Stringer M, Boyle D, Leblanc S, Collin J, Fenton J, Pullkkinen C, Pudupakkam S, Willoughby R, Henderson M, Bittira B. THE SAFTEY OF EARLY DISCHARGE FOLLOWING TRANSCATHETER AORTIC VALVE REPLACEMENT AMONG PATIENTS IN NORTHERN ONTARIO AND RURAL AREAS UTILIZING THE VANCOUVER 3M TAVR STUDY CLINICAL PATHWAY. Can J Cardiol 2020. [DOI: 10.1016/j.cjca.2020.07.085] [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] Open
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6
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Haselimashhadi H, Mason JC, Munoz-Fuentes V, López-Gómez F, Babalola K, Acar EF, Kumar V, White J, Flenniken AM, King R, Straiton E, Seavitt JR, Gaspero A, Garza A, Christianson AE, Hsu CW, Reynolds CL, Lanza DG, Lorenzo I, Green JR, Gallegos JJ, Bohat R, Samaco RC, Veeraragavan S, Kim JK, Miller G, Fuchs H, Garrett L, Becker L, Kang YK, Clary D, Cho SY, Tamura M, Tanaka N, Soo KD, Bezginov A, About GB, Champy MF, Vasseur L, Leblanc S, Meziane H, Selloum M, Reilly PT, Spielmann N, Maier H, Gailus-Durner V, Sorg T, Hiroshi M, Yuichi O, Heaney JD, Dickinson ME, Wolfgang W, Tocchini-Valentini GP, Lloyd KCK, McKerlie C, Seong JK, Yann H, de Angelis MH, Brown SDM, Smedley D, Flicek P, Mallon AM, Parkinson H, Meehan TF. Soft windowing application to improve analysis of high-throughput phenotyping data. Bioinformatics 2020; 36:1492-1500. [PMID: 31591642 PMCID: PMC7115897 DOI: 10.1093/bioinformatics/btz744] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Revised: 08/20/2019] [Accepted: 10/04/2019] [Indexed: 11/14/2022] Open
Abstract
Motivation High-throughput phenomic projects generate complex data from small treatment and large control groups that increase the power of the analyses but introduce variation over time. A method is needed to utlize a set of temporally local controls that maximizes analytic power while minimizing noise from unspecified environmental factors. Results Here we introduce ‘soft windowing’, a methodological approach that selects a window of time that includes the most appropriate controls for analysis. Using phenotype data from the International Mouse Phenotyping Consortium (IMPC), adaptive windows were applied such that control data collected proximally to mutants were assigned the maximal weight, while data collected earlier or later had less weight. We applied this method to IMPC data and compared the results with those obtained from a standard non-windowed approach. Validation was performed using a resampling approach in which we demonstrate a 10% reduction of false positives from 2.5 million analyses. We applied the method to our production analysis pipeline that establishes genotype–phenotype associations by comparing mutant versus control data. We report an increase of 30% in significant P-values, as well as linkage to 106 versus 99 disease models via phenotype overlap with the soft-windowed and non-windowed approaches, respectively, from a set of 2082 mutant mouse lines. Our method is generalizable and can benefit large-scale human phenomic projects such as the UK Biobank and the All of Us resources. Availability and implementation The method is freely available in the R package SmoothWin, available on CRAN http://CRAN.R-project.org/package=SmoothWin. Supplementary information Supplementary data are available at Bioinformatics online.
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Affiliation(s)
- Hamed Haselimashhadi
- European Molecular Biology Laboratory, European Bioinformatics Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge, UK
| | - Jeremy C Mason
- European Molecular Biology Laboratory, European Bioinformatics Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge, UK
| | - Violeta Munoz-Fuentes
- European Molecular Biology Laboratory, European Bioinformatics Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge, UK
| | - Federico López-Gómez
- European Molecular Biology Laboratory, European Bioinformatics Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge, UK
| | - Kolawole Babalola
- European Molecular Biology Laboratory, European Bioinformatics Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge, UK
| | - Elif F Acar
- The Centre for Phenogenomics.,The Hospital for Sick Children, Toronto, Canada.,Department of Statistics, University of Manitoba, Winnipeg, MB R3T 2N2 Canada
| | - Vivek Kumar
- The Jackson Laboratory, Bar Harbor, ME 04609, USA
| | - Jacqui White
- The Jackson Laboratory, Bar Harbor, ME 04609, USA
| | - Ann M Flenniken
- The Centre for Phenogenomics.,Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Canada
| | | | | | | | | | | | | | | | | | | | | | | | | | - Ritu Bohat
- Baylor College of Medicine, Houston, TX, USA
| | | | | | - Jong Kyoung Kim
- Daegu Gyeongbuk Institute of Science & Technology (DGIST), Daegu, Korea
| | | | | | | | - Lore Becker
- Helmholtz Center Munich, Neuherberg, Germany
| | | | - David Clary
- Mouse Biology Program, University of California Davis, Davis, CA, USA
| | - Soo Young Cho
- National Cancer Center (NCC) & Korea Mouse Phenotyping Center (KMPC), Korea
| | | | | | - Kyung Dong Soo
- Seoul National University & Korea Mouse Phenotyping Center (KMPC), Korea
| | - Alexandr Bezginov
- The Centre for Phenogenomics.,The Hospital for Sick Children, Toronto, Canada
| | - Ghina Bou About
- Université de Strasbourg, CNRS, INSERM, Institut Clinique de la Souris, PHENOMIN-ICS, 67404 Illkirch, France
| | - Marie-France Champy
- Université de Strasbourg, CNRS, INSERM, Institut Clinique de la Souris, PHENOMIN-ICS, 67404 Illkirch, France
| | - Laurent Vasseur
- Université de Strasbourg, CNRS, INSERM, Institut Clinique de la Souris, PHENOMIN-ICS, 67404 Illkirch, France
| | - Sophie Leblanc
- Université de Strasbourg, CNRS, INSERM, Institut Clinique de la Souris, PHENOMIN-ICS, 67404 Illkirch, France
| | - Hamid Meziane
- Université de Strasbourg, CNRS, INSERM, Institut Clinique de la Souris, PHENOMIN-ICS, 67404 Illkirch, France
| | - Mohammed Selloum
- Université de Strasbourg, CNRS, INSERM, Institut Clinique de la Souris, PHENOMIN-ICS, 67404 Illkirch, France
| | - Patrick T Reilly
- Université de Strasbourg, CNRS, INSERM, Institut Clinique de la Souris, PHENOMIN-ICS, 67404 Illkirch, France
| | | | | | | | - Tania Sorg
- Université de Strasbourg, CNRS, INSERM, Institut Clinique de la Souris, PHENOMIN-ICS, 67404 Illkirch, France
| | | | - Obata Yuichi
- RIKEN BioResource Research Center, Tsukuba, Japan
| | | | | | - Wurst Wolfgang
- Institute of Developmental Genetics, Helmholtz Centre Munich, Munich, Germany
| | | | | | - Colin McKerlie
- The Centre for Phenogenomics.,The Hospital for Sick Children, Toronto, Canada
| | - Je Kyung Seong
- Seoul National University & Korea Mouse Phenotyping Center (KMPC), Korea
| | - Herault Yann
- Université de Strasbourg, CNRS, INSERM, Institut de Génétique, Biologie Moléculaire et Cellulaire, Institut Clinique de la Souris, IGBMC, PHENOMIN-ICS, 67404 Illkirch, France
| | | | | | - Damian Smedley
- William Harvey Research Institute, Charterhouse Square Barts and the London School of Medicine and Dentistry Queen Mary University of London, London EC1M 6BQ, UK
| | - Paul Flicek
- European Molecular Biology Laboratory, European Bioinformatics Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge, UK
| | | | - Helen Parkinson
- European Molecular Biology Laboratory, European Bioinformatics Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge, UK
| | - Terrence F Meehan
- European Molecular Biology Laboratory, European Bioinformatics Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge, UK
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7
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Braud A, Wurth S, Leblanc S, Mahé A. Infection cutanée à Scedosporium apiospermum chez un patient traité par une corticothérapie systémique prolongée. Ann Dermatol Venereol 2019; 146:757-759. [DOI: 10.1016/j.annder.2019.06.005] [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: 03/24/2019] [Revised: 05/19/2019] [Accepted: 06/21/2019] [Indexed: 10/26/2022]
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8
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Durand H, Lamy F, Parratte T, Brinet A, Blain A, Lamy F, Gaultier C, Droy-Dupré L, Leblanc S, Oesterlé H, Olteanu S, Atlani D, Voirin J, Mokhtari K, Ahle G. P14.87 Leptomeningeal dissemination in high grade glioma: Correlation of MRI, cytology and standard CSF indices. Neuro Oncol 2019. [DOI: 10.1093/neuonc/noz126.322] [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: 11/14/2022] Open
Abstract
Abstract
BACKGROUND
Only few studies report the incidence of leptomeningeal dissemination (LMD) in patients with high grade glioma (HGG), although LMD is not a rare condition of recurrence. We aimed to describe the diagnostic features and treatment modalities in a series of patients treated for HGG in our institution.
METHODS
Review of clinical presentation, radiological features and CSF analysis in a case series.
RESULTS
17 patients from our institution were diagnosed with LMD. The diagnosis of LMD was based on magnetic resonance image and/or cerebrospinal fluid (CSF) analysis. The spectrum of clinical presentation was broad, mainly intracranial hypertension, impaired general condition, pain, worsening of pre-existing symptoms, and epileptic seizures. Median time from onset of clinical deterioration to diagnosis of LMD was 3 weeks (0–16). Leptomeningial involvement was reported in 6/17 at initial MRI reading, whereas reassessment with careful comparison to previous MRI showed signs of LMD in all patients. CSF analysis revealed pleocytosis (11/17), high proteinorrachia (13/17), elevated lactate levels (15/16), low glucose levels (5/17), and increased CSF pressure (5/9). Nevertheless, diagnostic accuracy of initial CSF cytological analysis was low (2/17). A reassessment of the specimen by an experienced neuropathologist disclosed 1 additional positive and 1 additional suspect cytology. After diagnosis of LMD, salvage treatments comprised Bevacizumab, Lomustine, Fotemustine, liposomal cytarabine and best supportive care. The median overall survival after the diagnosis was 3 months.
DISCUSSION AND CONCLUSIONS
LMD in HGG is not a rare condition of recurrence, and its outcome is poor. It remains a diagnostic challenge, as it may be overlooked on MRI follow-up at its early stage. In case of clinical progression with no overt cause reported on MRI, we recommend careful second MRI reading. In case of doubt lumbar puncture should be performed in order to prove LMD and eliminate infection (i.e. HSV). Upon standard CSF indices, elevated lactate levels should give rise to the suspicion of LMD. Cytological CSF analysis seems to be of low diagnostic yield: This may be improved by faster processing after sampling and by standardized workup including staining with IDH, GFAP and Olig2.
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Affiliation(s)
- H Durand
- Hôpitaux Civils de Colmar, Colmar, France
| | - F Lamy
- Hôpitaux Civils de Colmar, Colmar, France
| | - T Parratte
- Hôpitaux Civils de Colmar, Colmar, France
| | - A Brinet
- Hôpitaux Civils de Colmar, Colmar, France
| | - A Blain
- Hôpitaux Civils de Colmar, Colmar, France
| | - F Lamy
- Hôpitaux Civils de Colmar, Colmar, France
| | - C Gaultier
- Hôpitaux Civils de Colmar, Colmar, France
| | | | - S Leblanc
- Hôpitaux Civils de Colmar, Colmar, France
| | - H Oesterlé
- Hôpitaux Civils de Colmar, Colmar, France
| | - S Olteanu
- Hôpitaux Civils de Colmar, Colmar, France
| | - D Atlani
- Hôpitaux Civils de Colmar, Colmar, France
| | - J Voirin
- Hôpitaux Civils de Colmar, Colmar, France
| | - K Mokhtari
- Hôpital Pitié-Salpêtrière, Paris, France
| | - G Ahle
- Hôpitaux Civils de Colmar, Colmar, France
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9
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Chouaïd C, Debieuvre D, Durand-Zaleski I, Fernandes J, Scherpereel A, Westeel V, Blein C, Gaudin A, Ozan N, Leblanc S, Vainchtock A, Cotté F, Souquet P. Disparités régionales et socio-économiques dans le cancer du poumon (étude TERRITOIRE). Rev Mal Respir 2016. [DOI: 10.1016/j.rmr.2015.10.047] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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10
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Barret M, Beye B, Leblanc S, Beuvon F, Chaussade S, Batteux F, Prat F. Systematic review: the prevention of oesophageal stricture after endoscopic resection. Aliment Pharmacol Ther 2015; 42:20-39. [PMID: 25982288 DOI: 10.1111/apt.13254] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2015] [Revised: 02/28/2015] [Accepted: 04/30/2015] [Indexed: 12/13/2022]
Abstract
BACKGROUND Extensive endoscopic resections for the treatment of early oesophageal neoplasia can result in fibro-inflammatory strictures that require repeated interventions, which significantly alter the patients' quality of life. AIMS To review current evidence about the prevention of oesophageal strictures following endoscopic resections. METHODS Systematic search of PubMed and Embase from inception to March 2015 using appropriate keywords. All original publications in English were included, and articles on the treatment of oesophageal stricture were excluded. RESULTS Of the 461 hits, 62 studies were included in the analysis. Among the wound-protective strategies, polyglycolic acid sheets showed the most convincing evidence with a 37.5% stricture rate and excellent safety. Regenerative medicine, using cell sheets of autologous keratinocytes, resulted in a 25% stricture rate, although with cost and availability concerns. Among anti-proliferative treatment modalities, steroid treatment, either endoscopically injected triamcinolone in the resection wound or orally administered prednisolone, proved effective with an overall stricture rate of 13.5%, with safety concerns regarding late oesophageal perforations and infectious morbidity. Among mechanical treatment options, poorly effective and high-risk preventive balloon dilation tend to be replaced by prophylactic covered stent, with 18-28% stricture rates. CONCLUSIONS Although oral or locally injected steroids are promising options, no currently available technique is sufficiently efficient and devoid of significant safety concerns to recommend its routine use for the prevention of strictures after extensive endoscopic resection. Improving our knowledge in the mechanisms of oesophageal wound healing will guide the development of novel methods for stricture prevention.
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Affiliation(s)
- M Barret
- Department of Gastroenterology, Cochin Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France.,UI 1016, Faculté Paris Descartes, Paris, France
| | - B Beye
- Department of Gastroenterology, Cochin Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France.,UI 1016, Faculté Paris Descartes, Paris, France
| | - S Leblanc
- Department of Gastroenterology, Cochin Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - F Beuvon
- Department of Pathology, Cochin Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - S Chaussade
- Department of Gastroenterology, Cochin Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - F Batteux
- UI 1016, Faculté Paris Descartes, Paris, France.,Department of Immunology, Cochin Hospital, Paris, France
| | - F Prat
- Department of Gastroenterology, Cochin Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France.,UI 1016, Faculté Paris Descartes, Paris, France
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11
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Ayadi A, Birling MC, Bottomley J, Bussell J, Fuchs H, Fray M, Gailus-Durner V, Greenaway S, Houghton R, Karp N, Leblanc S, Lengger C, Maier H, Mallon AM, Marschall S, Melvin D, Morgan H, Pavlovic G, Ryder E, Skarnes WC, Selloum M, Ramirez-Solis R, Sorg T, Teboul L, Vasseur L, Walling A, Weaver T, Wells S, White JK, Bradley A, Adams DJ, Steel KP, Hrabě de Angelis M, Brown SD, Herault Y. Mouse large-scale phenotyping initiatives: overview of the European Mouse Disease Clinic (EUMODIC) and of the Wellcome Trust Sanger Institute Mouse Genetics Project. Mamm Genome 2012; 23:600-10. [PMID: 22961258 PMCID: PMC3463797 DOI: 10.1007/s00335-012-9418-y] [Citation(s) in RCA: 103] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2012] [Accepted: 07/23/2012] [Indexed: 12/17/2022]
Abstract
Two large-scale phenotyping efforts, the European Mouse Disease Clinic (EUMODIC) and the Wellcome Trust Sanger Institute Mouse Genetics Project (SANGER-MGP), started during the late 2000s with the aim to deliver a comprehensive assessment of phenotypes or to screen for robust indicators of diseases in mouse mutants. They both took advantage of available mouse mutant lines but predominantly of the embryonic stem (ES) cells resources derived from the European Conditional Mouse Mutagenesis programme (EUCOMM) and the Knockout Mouse Project (KOMP) to produce and study 799 mouse models that were systematically analysed with a comprehensive set of physiological and behavioural paradigms. They captured more than 400 variables and an additional panel of metadata describing the conditions of the tests. All the data are now available through EuroPhenome database (www.europhenome.org) and the WTSI mouse portal (http://www.sanger.ac.uk/mouseportal/), and the corresponding mouse lines are available through the European Mouse Mutant Archive (EMMA), the International Knockout Mouse Consortium (IKMC), or the Knockout Mouse Project (KOMP) Repository. Overall conclusions from both studies converged, with at least one phenotype scored in at least 80% of the mutant lines. In addition, 57% of the lines were viable, 13% subviable, 30% embryonic lethal, and 7% displayed fertility impairments. These efforts provide an important underpinning for a future global programme that will undertake the complete functional annotation of the mammalian genome in the mouse model.
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Affiliation(s)
- Abdel Ayadi
- Institut Clinique de la Souris, PHENOMIN, IGBMC/ICS-MCI, CNRS, INSERM, Université de Strasbourg, UMR7104, UMR964, 1 rue Laurent Fries, 67404 Illkirch, France
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12
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Ascher P, Audirac L, Adimi N, Blank B, Borcea C, Brown BA, Companis I, Delalee F, Demonchy CE, de Oliveira Santos F, Giovinazzo J, Grévy S, Grigorenko LV, Kurtukian-Nieto T, Leblanc S, Pedroza JL, Perrot L, Pibernat J, Serani L, Srivastava PC, Thomas JC. Direct observation of two protons in the decay of 54Zn. Phys Rev Lett 2011; 107:102502. [PMID: 21981498 DOI: 10.1103/physrevlett.107.102502] [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] [Subscribe] [Scholar Register] [Received: 04/13/2011] [Indexed: 05/31/2023]
Abstract
The two protons emitted in the decay of 54Zn have been individually observed for the first time in a time projection chamber. The total decay energy and the half-life measured in this work agree with the results obtained in a previous experiment. Angular and energy correlations between the two protons are determined and compared to theoretical distributions of a three-body model. Within the shell model framework, the relative decay probabilities show a strong contribution of the p2 configuration for the two-proton emission. After 45Fe, the present result on 54Zn constitutes only the second case of a direct observation of the ground state two-proton decay of a long-lived isotope.
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Affiliation(s)
- P Ascher
- Centre d'Études Nucléaires de Bordeaux Gradignan-Université Bordeaux 1-UMR 5797 CNRS/IN2P3, Chemin du Solarium, BP 120, 33175 Gradignan, France
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13
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Leblanc S, Allez M, Seksik P, Flourié B, Peeters H, Dupas JL, Bouguen G, Peyrin-Biroulet L, Duclos B, Bourreille A, Dewit O, Bouhnik Y, Michetti P, Chaussade S, Saussure P, Mary JY, Colombel JF, Lémann M. Successive treatment with cyclosporine and infliximab in steroid-refractory ulcerative colitis. Am J Gastroenterol 2011; 106:771-7. [PMID: 21386832 DOI: 10.1038/ajg.2011.62] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
OBJECTIVES Rescue therapy with either cyclosporine (CYS) or infliximab (IFX) is an effective option in patients with intravenous steroid-refractory attacks of ulcerative colitis (UC). In patients who fail, colectomy is usually recommended, but a second-line rescue therapy with IFX or CYS is an alternative. The aims of this study were to investigate the efficacy and tolerance of IFX and CYS as a second-line rescue therapy in steroid-refractory UC or indeterminate colitis (IC) unsuccessfully treated with CYS or IFX. METHODS This was a retrospective survey of patients seen during the period 2000-2008 in the GETAID centers. Inclusion criteria included a delay of <1 month between CYS withdrawal (when used first) and IFX, or a delay of <2 months between IFX (when used first) and CYS, and a follow-up of at least 3 months after inclusion. Time-to-colectomy, clinical response, and occurrence of serious adverse events were analyzed. RESULTS A total of 86 patients (median age 34 years; 49 males; 71 UC and 15 IC) were successively treated with CYS and IFX. The median (± s.e.) follow-up time was 22.6 (7.0) months. During the study period, 49 patients failed to respond to the second-line rescue therapy and underwent a colectomy. The probability of colectomy-free survival (± s.e.) was 61.3 ± 5.3% at 3 months and 41.3 ± 5.6 % at 12 months. A case of fatal pulmonary embolism occurred at 1 day after surgery in a 45-year-old man. Also, nine infectious complications were observed during the second-line rescue therapy. CONCLUSIONS In patients with intravenous steroid-refractory UC and who fail to respond to CYS or IFX, a second-line rescue therapy may be effective in carefully selected patients, avoiding colectomy within 2 months in two-thirds of them. The risk/benefit ratio should still be considered individually.
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Affiliation(s)
- S Leblanc
- Hôpital Saint-Louis, Université Paris-Diderot, Assistance Publique-Hôpitaux de Paris, Paris, France
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14
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Coriat R, Leblanc S, Pommaret E, Chryssostalis A, Prat F, Chaussade S. Transmural air leak following endoscopic submucosal dissection: a non-useful computed tomography finding. Endoscopy 2010; 42:1117; author reply 1118. [PMID: 21120781 DOI: 10.1055/s-0030-1255920] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
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15
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Huppertz J, Coriat R, Leblanc S, Gaudric M, Brezault C, Grandjouan S, Chaput U, Prat F, Chaussade S. Application of ANAES guidelines for colonoscopy in France: a practical survey. ACTA ACUST UNITED AC 2010; 34:541-8. [PMID: 20739131 DOI: 10.1016/j.gcb.2010.03.017] [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] [Received: 09/27/2009] [Revised: 02/22/2010] [Accepted: 03/07/2010] [Indexed: 01/09/2023]
Abstract
OBJECTIVES In 2004, the French health authorities published guidelines on the indications for colonoscopy. However, no study has evaluated the awareness of healthcare practitioners of these guidelines. The aim of this study was to determine the level of awareness of the ANAES guidelines among French gastroenterologists. PATIENTS AND METHODS A questionnaire comprising 20 multiple choice questions (MCQ) was presented to a group of 79 gastroenterologists between February and June in 2008. The questions covered screening tests for colon cancer (one question), endoscopic mucosal resection (two questions) and the ANAES guidelines (17 questions). According to the number of colonoscopies performed per year (less than 100, 100-500, more than 500), the answers to these questions were analyzed separately. RESULTS Among the practitioners carrying out less than 100, 100-500 and more than 500 colonoscopies per year, the guidelines for colon cancer screening were known by 33, 50 and 56%, respectively, the quality criteria for endoscopic mucosal resection by 0, 0 and 3.7%, respectively, and the ANAES guideline indications for colonoscopy by 34.3, 51.2 and 48.9%, respectively (P<0.001). The ANAES guidelines were significantly better known by practitioners who were performing more than 100 colonoscopies per year, while the indications for control colonoscopy were less often correctly anticipated. No differences were found concerning postponed indications. CONCLUSION The ANAES guidelines consists of the following elements: (1) awareness of the ANAES guidelines is poor, with control colonoscopy being correctly anticipated in just over a third of the gastroenterologists; (2) performing more than 100 colonoscopies per year improves knowledge of the ANAES guidelines; and (3) the ANAES guidelines need to be simplified and should be covered by continuing medical education.
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Affiliation(s)
- J Huppertz
- Service de gastroentérologie, CHU Cochin, faculté René-Descartes-Paris-V, 27 rue du Faubourg-Saint-Jacques, Paris, France
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16
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Lloret Linares C, Leblanc S, Cacheux W, Abitbol V, Mouthon L, Bergmann JF, Chaussade S. Survenue de thromboses artérielles chez deux patients bénéficiant d’un traitement par adalimumab (Himura®) pour une maladie de Crohn. Rev Med Interne 2009. [DOI: 10.1016/j.revmed.2009.10.241] [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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17
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Morgan H, Beck T, Blake A, Gates H, Adams N, Debouzy G, Leblanc S, Lengger C, Maier H, Melvin D, Meziane H, Richardson D, Wells S, White J, Wood J, de Angelis MH, Brown SDM, Hancock JM, Mallon AM. EuroPhenome: a repository for high-throughput mouse phenotyping data. Nucleic Acids Res 2009; 38:D577-85. [PMID: 19933761 PMCID: PMC2808931 DOI: 10.1093/nar/gkp1007] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
The broad aim of biomedical science in the postgenomic era is to link genomic and phenotype information to allow deeper understanding of the processes leading from genomic changes to altered phenotype and disease. The EuroPhenome project (http://www.EuroPhenome.org) is a comprehensive resource for raw and annotated high-throughput phenotyping data arising from projects such as EUMODIC. EUMODIC is gathering data from the EMPReSSslim pipeline (http://www.empress.har.mrc.ac.uk/) which is performed on inbred mouse strains and knock-out lines arising from the EUCOMM project. The EuroPhenome interface allows the user to access the data via the phenotype or genotype. It also allows the user to access the data in a variety of ways, including graphical display, statistical analysis and access to the raw data via web services. The raw phenotyping data captured in EuroPhenome is annotated by an annotation pipeline which automatically identifies statistically different mutants from the appropriate baseline and assigns ontology terms for that specific test. Mutant phenotypes can be quickly identified using two EuroPhenome tools: PhenoMap, a graphical representation of statistically relevant phenotypes, and mining for a mutant using ontology terms. To assist with data definition and cross-database comparisons, phenotype data is annotated using combinations of terms from biological ontologies.
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Affiliation(s)
- Hugh Morgan
- MRC Harwell, Mammalian Genetics Unit, MRC Harwell, Mary Lyon Centre, Harwell Science and Innovation Campus, Oxfordshire OX11 0RD, UK
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18
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Aris A, Benali S, Ouellet A, Moutquin JM, Leblanc S. Potential biomarkers of preeclampsia: inverse correlation between hydrogen peroxide and nitric oxide early in maternal circulation and at term in placenta of women with preeclampsia. Placenta 2009; 30:342-7. [PMID: 19223072 DOI: 10.1016/j.placenta.2009.01.003] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2008] [Revised: 01/12/2009] [Accepted: 01/12/2009] [Indexed: 12/01/2022]
Abstract
Preeclampsia (PE) is a pregnancy-specific disease that has been associated with future cardiovascular disease for the mother and her child. The etiology of PE is unclear but oxidative stress seems to play a major role in endothelial dysfunction and permanent systemic vasoconstriction shown in PE. Hydrogen peroxide (H(2)O(2)), a terminal metabolite of the cellular oxidative stress cascade, is also revealed as a component of oxidative ischemia/reperfusion stress in placenta. We were the first to show an increase in the levels of H(2)O(2) in the serum of preeclamptic women at term. H(2)O(2) is already known to reduce the production of NO by increasing the metabolism of arginases. The objective of this study was to investigate a possible correlation between nitric oxide (NO), a potent vasodilator, and H(2)O(2) throughout pregnancy. Thus, we simultaneously assessed the levels of NO and H(2)O(2) in the serum of normal and preeclamptic women at 10-15 and 37-40 weeks of pregnancy, and in placentas at delivery. Our findings showed an inverse correlation between increased levels of H(2)O(2) and decreased levels of NO early in maternal circulation and at term in placenta. This relationship is confirmed by our in vitro experiments which demonstrate that H(2)O(2) inhibits NO synthesis of cytotrophoblasts. In conclusion, our findings highlight an inverse correlation between H(2)O(2) and NO early in maternal circulation and in placenta of women with preeclampsia, paving the way for further studies examining the potential use of NO and H(2)O(2) as biomarkers in the prediction of preeclampsia.
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Affiliation(s)
- A Aris
- Department of Obstetrics-Gynecology, University of Sherbrooke Hospital Centre, Quebec J1H 5N4, Canada.
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Giovinazzo J, Blank B, Borcea C, Canchel G, Dalouzy JC, Demonchy CE, de Oliveira Santos F, Dossat C, Grévy S, Hay L, Huikari J, Leblanc S, Matea I, Pedroza JL, Perrot L, Pibernat J, Serani L, Stodel C, Thomas JC. First direct observation of two protons in the decay of 45Fe with a time-projection chamber. Phys Rev Lett 2007; 99:102501. [PMID: 17930383 DOI: 10.1103/physrevlett.99.102501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2007] [Indexed: 05/25/2023]
Abstract
The decay of the ground-state two-proton emitter 45Fe was studied with a time-projection chamber and the emission of two protons was unambiguously identified. The total decay energy and the half-life measured in this work agree with the results from previous experiments. The present result constitutes the first direct observation of the individual protons in the two-proton decay of a long-lived ground-state emitter. In parallel, we identified for the first time directly two-proton emission from 43Cr, a known beta-delayed two-proton emitter. The technique developed in the present work opens the way to a detailed study of the mechanism of ground state as well as beta-delayed two-proton radioactivity.
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Affiliation(s)
- J Giovinazzo
- Centre d'Etudes Nucléaires de Bordeaux Gradignan-Université Bordeaux 1-UMR 5797 CNRS/IN2P3, Chemin du Solarium, BP 120, F-33175 Gradignan Cedex, France
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Widlowski JL, Taberner M, Pinty B, Bruniquel-Pinel V, Disney M, Fernandes R, Gastellu-Etchegorry JP, Gobron N, Kuusk A, Lavergne T, Leblanc S, Lewis PE, Martin E, Mõttus M, North PRJ, Qin W, Robustelli M, Rochdi N, Ruiloba R, Soler C, Thompson R, Verhoef W, Verstraete MM, Xie D. Third Radiation Transfer Model Intercomparison (RAMI) exercise: Documenting progress in canopy reflectance models. ACTA ACUST UNITED AC 2007. [DOI: 10.1029/2006jd007821] [Citation(s) in RCA: 160] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Hancock JM, Adams NC, Aidinis V, Blake A, Bogue M, Brown SDM, Chesler EJ, Davidson D, Duran C, Eppig JT, Gailus-Durner V, Gates H, Gkoutos GV, Greenaway S, Hrabé de Angelis M, Kollias G, Leblanc S, Lee K, Lengger C, Maier H, Mallon AM, Masuya H, Melvin DG, Müller W, Parkinson H, Proctor G, Reuveni E, Schofield P, Shukla A, Smith C, Toyoda T, Vasseur L, Wakana S, Walling A, White J, Wood J, Zouberakis M. Mouse Phenotype Database Integration Consortium: integration [corrected] of mouse phenome data resources. Mamm Genome 2007; 18:157-63. [PMID: 17436037 PMCID: PMC4230762 DOI: 10.1007/s00335-007-9004-x] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2007] [Accepted: 01/29/2007] [Indexed: 12/12/2022]
Abstract
Understanding the functions encoded in the mouse genome will be central to an understanding of the genetic basis of human disease. To achieve this it will be essential to be able to characterize the phenotypic consequences of variation and alterations in individual genes. Data on the phenotypes of mouse strains are currently held in a number of different forms (detailed descriptions of mouse lines, first-line phenotyping data on novel mutations, data on the normal features of inbred lines) at many sites worldwide. For the most efficient use of these data sets, we have initiated a process to develop standards for the description of phenotypes (using ontologies) and file formats for the description of phenotyping protocols and phenotype data sets. This process is ongoing and needs to be supported by the wider mouse genetics and phenotyping communities to succeed. We invite interested parties to contact us as we develop this process further.
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Tang J, Costello C, Keet IP, Rivers C, Leblanc S, Karita E, Allen S, Kaslow RA. HLA class I homozygosity accelerates disease progression in human immunodeficiency virus type 1 infection. AIDS Res Hum Retroviruses 1999; 15:317-24. [PMID: 10082114 DOI: 10.1089/088922299311277] [Citation(s) in RCA: 117] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Polymorphic products of HLA class I genes restrict cytotoxic T lymphocyte responses to the constantly evolving spectrum of HIV-1 antigens. Accordingly, homozygosity at class I loci can reduce the repertoire for such HLA-dependent interactions, leading to accelerated disease progression. To test this hypothesis we studied subjects from two distinct HIV/AIDS cohorts: 140 Dutch homosexual men and 202 Rwandan heterosexual women followed up to 13 years from HIV-1 seroconversion. We performed intermediate- and selective high-resolution molecular typing at HLA class I (A, B, and C) and high-resolution typing at HLA class II DRB1 and DQB1. Homozygosity at the HLA-A or -B locus or both was found at increasingly high frequency among individuals with successively more rapid progression to late-stage HIV-1-related conditions. In the combined cohorts (n = 342) the odds ratio (OR) due to HLA-A or -B antigen homozygosity in rapid versus slow progressors was 3.8 (p = 0.003); for Dutch men alone the OR was 3.5 (p = 0.102), and for Rwandan women the OR was 4.1 (p = 0.009). In contrast, homozygous genotypes at either HLA-C, DRB1, or DQB1 alone, or DRB1-DQB1 haplotypes, did not exert any deleterious effect on HIV-1 disease progression. These findings suggest strongly that diversity in addition to sequence specificity at HLA-A and -B loci can influence the rate of disease progression following HIV-1 infection.
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Affiliation(s)
- J Tang
- Department of Medicine, University of Alabama at Birmingham, 35294, USA
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Leblanc S, Pelletier-Bourgeois C. [Open window on the department of community health]. Nurs Que 1993; 13:49-51. [PMID: 8488007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Courjon D, Vigoureux JM, Spajer M, Sarayeddine K, Leblanc S. External and internal reflection near field microscopy: experiments and results. Appl Opt 1990; 29:3734-3740. [PMID: 20567478 DOI: 10.1364/ao.29.003734] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Two configurations of a scanning near field optical microscope working in reflection are presented. Results exhibiting nanometric resolution are given and discussed.
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