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Blache Y, Lefebvre F, Rogowski I, Michaud B, Begon M. Is an ellipsoid surface suitable to model the scapulothoracic sliding plane? J Biomech 2024; 164:111989. [PMID: 38354513 DOI: 10.1016/j.jbiomech.2024.111989] [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: 06/26/2023] [Revised: 01/16/2024] [Accepted: 02/06/2024] [Indexed: 02/16/2024]
Abstract
Closed loop kinematic chain approaches are commonly used to assess scapular kinematics but with heterogeneous ellipsoid calibration procedures. This study aimed to assess whether an ellipsoid surface can model the scapulothoracic sliding plane and determine the optimal number of static poses to calibrate the ellipsoid parameters. An intracortical pin with a rigid cluster of four reflective markers was inserted into the left scapular spine of two healthy males (P1 and P2). They performed arm elevations, internal rotations, ball throwing, hockey shooting, and eating movements. Ellipsoid radii and center location were functionally calibrated for each participant and each movement, either based on all frames of a movement or based on a reduced number of frames (from 3 to 200 equally position-distributed frames). Across both participants and all movements, ellipsoid radii varied up to 10.2 cm, 3.9 cm, and 18.4 cm in the antero-posterior, medio-lateral, and cranio-caudal directions, respectively. When all frames of a movement were considered for calibration, the median scapula-to-ellipsoid distance was, on average, 0.52 mm and 0.38 mm for P1 and P2, respectively. When only five frames were considered for ellipsoid calibration, the scapula-to-ellipsoid median distance slightly increased with 0.57 mm and 0.47 mm for P1 and P2, respectively. To conclude, this study highlights that an ellipsoid surface may effectively be appropriate to model the scapulothoracic sliding plane, especially when the calibration is functional, participant- and movement-specific. Furthermore, the number of poses required for the ellipsoid calibration can be reduced to five, minimizing the experimental cost.
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Affiliation(s)
- Y Blache
- Univ Lyon, Université Claude Bernard Lyon 1, Laboratoire Interuniversitaire de Biologie de la Motricité, EA 7424, F-69622 Villeurbanne, France.
| | - F Lefebvre
- Univ Lyon, Université Claude Bernard Lyon 1, Laboratoire Interuniversitaire de Biologie de la Motricité, EA 7424, F-69622 Villeurbanne, France; TRINOMA, Villefort, France
| | - I Rogowski
- Univ Lyon, Université Claude Bernard Lyon 1, Laboratoire Interuniversitaire de Biologie de la Motricité, EA 7424, F-69622 Villeurbanne, France
| | - B Michaud
- Laboratoire de simulation et modélisation du mouvement, Department of Kinesiology, University of Montreal, Montréal, QC, Canada
| | - M Begon
- Laboratoire de simulation et modélisation du mouvement, Department of Kinesiology, University of Montreal, Montréal, QC, Canada; Sainte-Justine Hospital Research Center, Montréal, QC, Canada
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Saclier N, Duchemin L, Konecny-Dupré L, Grison P, Eme D, Martin C, Callou C, Lefébure T, François C, Issartel C, Lewis JJ, Stoch F, Sket B, Gottstein S, Delić T, Zagmajster M, Grabowski M, Weber D, Reboleira ASPS, Palatov D, Paragamian K, Knight LRFD, Michel G, Lefebvre F, Hosseini MJM, Camacho AI, De Bikuña BG, Taleb A, Belaidi N, Tuekam Kayo RP, Galassi DMP, Moldovan OT, Douady CJ, Malard F. A collaborative backbone resource for comparative studies of subterranean evolution: The World Asellidae database. Mol Ecol Resour 2024; 24:e13882. [PMID: 37864541 DOI: 10.1111/1755-0998.13882] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 09/09/2023] [Accepted: 10/04/2023] [Indexed: 10/23/2023]
Abstract
Transition to novel environments, such as groundwater colonization by surface organisms, provides an excellent research ground to study phenotypic evolution. However, interspecific comparative studies on evolution to groundwater life are few because of the challenge in assembling large ecological and molecular resources for species-rich taxa comprised of surface and subterranean species. Here, we make available to the scientific community an operational set of working tools and resources for the Asellidae, a family of freshwater isopods containing hundreds of surface and subterranean species. First, we release the World Asellidae database (WAD) and its web application, a sustainable and FAIR solution to producing and sharing data and biological material. WAD provides access to thousands of species occurrences, specimens, DNA extracts and DNA sequences with rich metadata ensuring full scientific traceability. Second, we perform a large-scale dated phylogenetic reconstruction of Asellidae to support phylogenetic comparative analyses. Of 424 terminal branches, we identify 34 pairs of surface and subterranean species representing independent replicates of the transition from surface water to groundwater. Third, we exemplify the usefulness of WAD for documenting phenotypic shifts associated with colonization of subterranean habitats. We provide the first phylogenetically controlled evidence that body size of males decreases relative to that of females upon groundwater colonization, suggesting competition for rare receptive females selects for smaller, more agile males in groundwater. By making these tools and resources widely accessible, we open up new opportunities for exploring how phenotypic traits evolve in response to changes in selective pressures and trade-offs during groundwater colonization.
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Affiliation(s)
- Nathanaelle Saclier
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, ENTPE, UMR 5023 LEHNA, Villeurbanne, France
- ISEM, CNRS, Univ. Montpellier, IRD, EPHE, Montpellier, France
| | - Louis Duchemin
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, ENTPE, UMR 5023 LEHNA, Villeurbanne, France
| | - Lara Konecny-Dupré
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, ENTPE, UMR 5023 LEHNA, Villeurbanne, France
| | - Philippe Grison
- BBEES, Unité Bases de données sur la Biodiversité, Ecologie, Environnement et Sociétés, Muséum National d'Histoire Naturelle, CNRS, Paris, France
| | - David Eme
- INRAE, UR-RiverLY, Centre Lyon-Grenoble Auvergne-Rhône-Alpes, Villeurbanne, France
| | - Chloé Martin
- BBEES, Unité Bases de données sur la Biodiversité, Ecologie, Environnement et Sociétés, Muséum National d'Histoire Naturelle, CNRS, Paris, France
| | - Cécile Callou
- BBEES, Unité Bases de données sur la Biodiversité, Ecologie, Environnement et Sociétés, Muséum National d'Histoire Naturelle, CNRS, Paris, France
| | - Tristan Lefébure
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, ENTPE, UMR 5023 LEHNA, Villeurbanne, France
| | - Clémentine François
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, ENTPE, UMR 5023 LEHNA, Villeurbanne, France
| | - Colin Issartel
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, ENTPE, UMR 5023 LEHNA, Villeurbanne, France
| | - Julian J Lewis
- Virginia Museum of Natural History, Martinsville, Virginia, USA
- Lewis and Associates, Cave, Karst and Groundwater Biological Consulting, Borden, Indiana, USA
| | - Fabio Stoch
- Evolutionary Biology & Ecology, Université libre de Bruxelles (ULB), Bruxelles, Belgium
| | - Boris Sket
- Department of Biology, SubBio Lab, Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia
| | - Sanja Gottstein
- Faculty of Science, Department of Biology, University of Zagreb, Zagreb, Croatia
| | - Teo Delić
- Department of Biology, SubBio Lab, Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia
| | - Maja Zagmajster
- Department of Biology, SubBio Lab, Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia
| | - Michal Grabowski
- Department of Invertebrate Zoology & Hydrobiology, Faculty of Biology & Environmental Protection, University of Lodz, Lodz, Poland
| | - Dieter Weber
- Musée National d'Histoire Naturelle de Luxembourg, Luxembourg City, Luxembourg
- Senckenberg Deutsches Entomologisches Institut, Müncheberg, Germany
| | - Ana Sofia P S Reboleira
- Departamento de Biologia Animal, and Centre for Ecology, Evolution and Environmental Changes & CHANGE - Global Change and Sustainability Institute, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
- Natural History Museum of Denmark, University of Copenhagen, Copenhagen, Denmark
| | - Dmitry Palatov
- A.N. Severtsov Institute of Ecology and Evolution of the Russian Academy of Sciences, Moscow, Russia
| | | | | | - Georges Michel
- CWEPSS, Commission Wallonne d'Etude et de Protection des Sites Souterrains, Bruxelles, Belgium
| | | | - Mohammad-Javad Malek Hosseini
- Jovan Hadži Institute of Biology, Research Centre of the Slovenian Academy of Sciences and Arts (ZRC-SAZU), Ljubljana, Slovenia
- Department of Organisms and Ecosystems Research, National Institute of Biology (NIB), Ljubljana, Slovenia
| | - Ana I Camacho
- Museo Nacional de Ciencias Naturales (CSIC). Dpto. Biodiversidad y Biología Evolutiva, Madrid, Spain
| | - Begoña Gartzia De Bikuña
- Anbiotek, Investigación científica y técnica del medio ambiente, Erandio, Bizkaia, Spain
- Anbiolab, BIC Bizkaia Astondo bidea, Derio, Spain
| | - Amina Taleb
- Laboratoire d'Écologie et Gestion des Ecosystèmes Naturels, University of Tlemcen, Tlemcen, Algeria
| | - Nouria Belaidi
- Laboratoire d'Écologie et Gestion des Ecosystèmes Naturels, University of Tlemcen, Tlemcen, Algeria
| | - Raoul P Tuekam Kayo
- Faculty of Science, Department of Zoology, University of Bamenda, Bambili, Cameroon
| | | | - Oana Teodora Moldovan
- Emil Racovita Institute of Speleology, Cluj-Napoca, Romania
- Centro Nacional de Investigación sobre la Evolución Humana, Burgos, Spain
| | - Christophe J Douady
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, ENTPE, UMR 5023 LEHNA, Villeurbanne, France
- Institut Universitaire de France, Paris, France
| | - Florian Malard
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, ENTPE, UMR 5023 LEHNA, Villeurbanne, France
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Lefebvre F, Rogowski I, Long N, Blache Y. Influence of marker weights optimization on scapular kinematics estimated with a multibody kinematic optimization. J Biomech 2023; 159:111795. [PMID: 37699272 DOI: 10.1016/j.jbiomech.2023.111795] [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: 12/19/2022] [Revised: 08/10/2023] [Accepted: 09/04/2023] [Indexed: 09/14/2023]
Abstract
Scapular kinematic estimates are altered by soft tissue artefacts, therefore experimental and numerical methods should be developed to improve their accuracy. This study aimed to assess the influence of weights applied to the scapula markers within a closed-loop multibody kinematic optimization on scapular kinematic estimates. Fifteen healthy volunteers performed static postures mimicking analytical, daily living and sport movements. Scapulo-thoracic angles were computed either from a scapula locator as the reference, or from a closed-loop multibody-kinematic optimization (MKO) including a participant-specific point-on-ellipsoid scapulothoracic joint. Weights applied to scapula markers in the MKO were optimized to minimize the difference in scapular orientation from the reference. Optimizing weighting sets significantly (p < 0.0001) improved scapular orientation from 0.9° to 12.1° in comparison to scapular kinematics estimated with non-optimized weighting sets. The mean optimized weighting set contained no neglectable weight for all markers from the acromion to the medial border of the scapular spine but showed no significant difference (p = 0.547) compared to homogeneous weights. Optimized weighting sets were participant- and movement- specific. To conclude, homogenous weights applied on redundant markers located from acromion to scapular medial border spine are recommended when estimating scapular kinematics in upper limb MKO.
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Affiliation(s)
- F Lefebvre
- Univ Lyon, Université Claude Bernard Lyon 1, Laboratoire Interuniversitaire de Biologie de la Motricité, UR 7424, F-69622 Villeurbanne, France; TRINOMA, Villefort, France.
| | - I Rogowski
- Univ Lyon, Université Claude Bernard Lyon 1, Laboratoire Interuniversitaire de Biologie de la Motricité, UR 7424, F-69622 Villeurbanne, France
| | - N Long
- TRINOMA, Villefort, France
| | - Y Blache
- Univ Lyon, Université Claude Bernard Lyon 1, Laboratoire Interuniversitaire de Biologie de la Motricité, UR 7424, F-69622 Villeurbanne, France
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Riebel M, Rohmer O, Charles E, Lefebvre F, Weibel S, Weiner L. Compassion-focused therapy (CFT) for the reduction of the self-stigma of mental disorders: the COMpassion for Psychiatric disorders, Autism and Self-Stigma (COMPASS) study protocol for a randomized controlled study. Trials 2023; 24:393. [PMID: 37309006 DOI: 10.1186/s13063-023-07393-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Accepted: 05/18/2023] [Indexed: 06/14/2023] Open
Abstract
BACKGROUND People with mental disorders face frequent stigmatizing attitudes and behaviors from others. Importantly, they can internalize such negative attitudes and thus self-stigmatize. Self-stigma is involved in diminished coping skills leading to social avoidance and difficulties in adhering to care. Reducing self-stigma and its emotional corollary, shame, is thus crucial to attenuate the negative outcomes associated with mental illness. Compassion-focused therapy (CFT) is a third-wave cognitive behavioral therapy that targets shame reduction and hostile self-to-self relationship and allows for symptom improvement while increasing self-compassion. Although shame is a prominent part of the concept of self-stigma, the efficacy of CFT has never been evaluated in individuals with high levels of self-stigma. The purpose of this study is to evaluate the efficacy and acceptability of a group-based CFT program on self-stigma, compared to a psychoeducation program for self-stigma (Ending Self-Stigma) and to treatment as usual (TAU). We hypothesize that diminished shame and emotional dysregulation and increased self-compassion will mediate the relationship between self-stigma improvements post-therapy in the experimental group. METHODS This seven-center trial will involve 336 participants diagnosed with a severe mental illness and/or autism spectrum disorder and reporting high levels of self-stigma. Participants will be randomized into one of three treatment arms: 12 week-treatment of compassion-focused therapy (experimental arm), 12 week-treatment of Psychoeducation (active control arm), and TAU (treatment as usual-passive control arm). The primary outcome is the decrease of self-stigma scores on a self-report scale, i.e., ISMI, at 12 weeks. Secondary endpoints include sustainability of self-stigma scores (ISMI) and self-reported scores regarding target psychological dimensions, e.g., shame and emotional regulation, social functioning, and psychiatric symptoms. Assessments are scheduled at pretreatment, post-treatment (at 12 weeks), and at 6-month follow-up. Acceptability will be evaluated via (i) the Credibility and Expectancy Questionnaire at T0, (ii) the Consumer Satisfaction Questionnaire for Psychotherapeutic Services posttreatment and at 6-month follow-up, (iii) attendance, and (iv) dropout rates. DISCUSSION This study will evaluate the potential efficacy and acceptability of a group-based CFT program on the decrease of self-stigma and thereby contribute to the continuing development of evidence-based therapeutic interventions for the internalized stigma of mental and neurodevelopmental disorders. TRIAL REGISTRATION ClinicalTrials.gov NCT05698589. Registered on January 26, 2023.
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Affiliation(s)
- M Riebel
- Laboratoire de Psychologie des Cognitions (Unistra), Université de Strasbourg, 12 rue goethe, 67000, Strasbourg, France
| | - O Rohmer
- Laboratoire de Psychologie des Cognitions (Unistra), Université de Strasbourg, 12 rue goethe, 67000, Strasbourg, France
| | - E Charles
- Pôle de Psychiatrie, Santé Mentale et Addictologie, Hôpitaux Universitaires de Strasbourg, 1 place de l'hôpital, 67000, Strasbourg, France
| | - F Lefebvre
- Groupe Méthode en Recherche Clinique (GMRC), Strasbourg University Hospitals (SUH), Strasbourg, France
| | - S Weibel
- Pôle de Psychiatrie, Santé Mentale et Addictologie, Hôpitaux Universitaires de Strasbourg, 1 place de l'hôpital, 67000, Strasbourg, France
| | - L Weiner
- Laboratoire de Psychologie des Cognitions (Unistra), Université de Strasbourg, 12 rue goethe, 67000, Strasbourg, France.
- Pôle de Psychiatrie, Santé Mentale et Addictologie, Hôpitaux Universitaires de Strasbourg, 1 place de l'hôpital, 67000, Strasbourg, France.
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Anadolu MN, Sun J, Kailasam S, Chalkiadaki K, Krimbacher K, Li JTY, Markova T, Jafarnejad SM, Lefebvre F, Ortega J, Gkogkas CG, Sossin WS. Ribosomes in RNA Granules Are Stalled on mRNA Sequences That Are Consensus Sites for FMRP Association. J Neurosci 2023; 43:2440-2459. [PMID: 36849416 PMCID: PMC10082463 DOI: 10.1523/jneurosci.1002-22.2023] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 02/07/2023] [Accepted: 02/13/2023] [Indexed: 03/01/2023] Open
Abstract
Local translation in neurons is partly mediated by the reactivation of stalled polysomes. Stalled polysomes may be enriched within the granule fraction, defined as the pellet of sucrose gradients used to separate polysomes from monosomes. The mechanism of how elongating ribosomes are reversibly stalled and unstalled on mRNAs is still unclear. In the present study, we characterize the ribosomes in the granule fraction using immunoblotting, cryogenic electron microscopy (cryo-EM), and ribosome profiling. We find that this fraction, isolated from 5-d-old rat brains of both sexes, is enriched in proteins implicated in stalled polysome function, such as the fragile X mental retardation protein (FMRP) and Up-frameshift mutation 1 homologue. Cryo-EM analysis of ribosomes in this fraction indicates they are stalled, mainly in the hybrid state. Ribosome profiling of this fraction reveals (1) an enrichment for footprint reads of mRNAs that interact with FMRPs and are associated with stalled polysomes, (2) an abundance of footprint reads derived from mRNAs of cytoskeletal proteins implicated in neuronal development, and (3) increased ribosome occupancy on mRNAs encoding RNA binding proteins. Compared with those usually found in ribosome profiling studies, the footprint reads were longer and were mapped to reproducible peaks in the mRNAs. These peaks were enriched in motifs previously associated with mRNAs cross-linked to FMRP in vivo, independently linking the ribosomes in the granule fraction to the ribosomes associated with FMRP in the cell. The data supports a model in which specific sequences in mRNAs act to stall ribosomes during translation elongation in neurons.SIGNIFICANCE STATEMENT Neurons send mRNAs to synapses in RNA granules, where they are not translated until an appropriate stimulus is given. Here, we characterize a granule fraction obtained from sucrose gradients and show that polysomes in this fraction are stalled on consensus sequences in a specific state of translational arrest with extended ribosome-protected fragments. This finding greatly increases our understanding of how neurons use specialized mechanisms to regulate translation and suggests that many studies on neuronal translation may need to be re-evaluated to include the large fraction of neuronal polysomes found in the pellet of sucrose gradients used to isolate polysomes.
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Affiliation(s)
- Mina N Anadolu
- Department of Neurology and Neurosurgery, Montreal Neurological Institute, McGill University, Montreal, Quebec H3A 2B4, Canada
| | - Jingyu Sun
- Department of Anatomy and Cell Biology, McGill University, Montreal, Quebec H3A 0C7, Canada
- Centre for Structural Biology, McGill University, Montreal, Quebec H3G 0B1, Canada
| | - Senthilkumar Kailasam
- Canadian Centre for Computational Genomics, McGill University, Montreal, Quebec H3A 0G1, Canada
| | - Kleanthi Chalkiadaki
- Biomedical Research Institute, Foundation for Research and Technology-Hellas, 45110 Ioannina, Greece
| | - Konstanze Krimbacher
- Department of Pharmacology, Medical University of Innsbruck, Innsbruck Austria Division of Biomedical Research, A-6020 Innsbruck, Austria
| | - Jewel T-Y Li
- Department of Neurology and Neurosurgery, Montreal Neurological Institute, McGill University, Montreal, Quebec H3A 2B4, Canada
| | - Teodora Markova
- Department of Neurology and Neurosurgery, Montreal Neurological Institute, McGill University, Montreal, Quebec H3A 2B4, Canada
| | - Seyed M Jafarnejad
- Patrick G, Johnston Centre for Cancer Research, Queen's University Belfast, Belfast, Northern Ireland BT9 7AE, United Kingdom
| | - Francois Lefebvre
- Canadian Centre for Computational Genomics, McGill University, Montreal, Quebec H3A 0G1, Canada
| | - Joaquin Ortega
- Department of Anatomy and Cell Biology, McGill University, Montreal, Quebec H3A 0C7, Canada
- Centre for Structural Biology, McGill University, Montreal, Quebec H3G 0B1, Canada
| | - Christos G Gkogkas
- Biomedical Research Institute, Foundation for Research and Technology-Hellas, 45110 Ioannina, Greece
| | - Wayne S Sossin
- Department of Neurology and Neurosurgery, Montreal Neurological Institute, McGill University, Montreal, Quebec H3A 2B4, Canada
- Department of Anatomy and Cell Biology, McGill University, Montreal, Quebec H3A 0C7, Canada
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Mackelprang RD, Filali-Mouhim A, Richardson B, Lefebvre F, Katabira E, Ronald A, Gray G, Cohen KW, Klatt NR, Pecor T, Celum C, McElrath MJ, Hughes SM, Hladik F, Cameron MJ, Lingappa JR. Upregulation of IFN-stimulated genes persists beyond the transitory broad immunologic changes of acute HIV-1 infection. iScience 2023; 26:106454. [PMID: 37020953 PMCID: PMC10067744 DOI: 10.1016/j.isci.2023.106454] [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] [Received: 03/18/2022] [Revised: 09/15/2022] [Accepted: 03/15/2023] [Indexed: 04/03/2023] Open
Abstract
Chronic immune activation during HIV-1 infection contributes to morbidity and mortality in people living with HIV. To elucidate the underlying biological pathways, we evaluated whole blood gene expression trajectories from before, through acute, and into chronic HIV-1 infection. Interferon-stimulated genes, including MX1, IFI27 and ISG15, were upregulated during acute infection, remained elevated into chronic infection, and were strongly correlated with plasma HIV-1 RNA as well as TNF-α and CXCL10 cytokine levels. In contrast, genes involved in cellular immune responses, such as CD8A, were upregulated during acute infection before reaching a peak and returning to near pre-infection levels in chronic infection. Our results indicate that chronic immune activation during HIV-1 infection is characterized by persistent elevation of a narrow set of interferon-stimulated genes and innate cytokines. These findings raise the prospect of devising a targeted intervention to restore healthy immune homeostasis in people living with HIV-1.
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7
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Li Y, Lefebvre F, Nakku-Joloba E, Ronald A, Gray G, de Bruyn G, Kiarie J, Celum C, Cameron MJ, Lingappa JR, Mackelprang RD. Upregulation of PTPRC and Interferon Response Pathways in HIV-1 Seroconverters Prior to Infection. J Infect Dis 2023; 227:714-719. [PMID: 36637125 PMCID: PMC9978315 DOI: 10.1093/infdis/jiac498] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 12/16/2022] [Accepted: 12/27/2022] [Indexed: 01/14/2023] Open
Abstract
Human immunodeficiency virus 1 (HIV-1) exposed seronegative (HESN) individuals may have unique characteristics that alter susceptibility to HIV-1 infection. However, identifying truly exposed HESN is challenging. We utilized stored data and biospecimens from HIV-1 serodifferent couple cohorts, in which couples' HIV-1 exposures were quantified based on unprotected sex frequency and viral load of the partner with HIV-1. We compared peripheral blood gene expression between 15 HESN and 18 seroconverters prior to infection. We found PTPRC (encoding CD45 antigen) and interferon-response pathways had significantly higher expression among individuals who went on to become seropositive and thus may be a signature for increased acquisition risk.
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Affiliation(s)
- Yunqi Li
- Institute for Public Health Genetics, University of Washington, Seattle, Washington, USA
| | - Francois Lefebvre
- Canadian Centre for Computational Genomics-Montréal Node, Montreal, Quebec, Canada
| | | | - Allan Ronald
- Department of Medical Microbiology and Infectious Diseases, University of Manitoba, Winnipeg, Canada
| | - Glenda Gray
- Perinatal HIV Research Unit, University of the Witwatersrand, Johannesburg, South Africa
| | - Guy de Bruyn
- Perinatal HIV Research Unit, University of the Witwatersrand, Johannesburg, South Africa
| | - James Kiarie
- Department of Obstetrics and Gynecology, University of Nairobi, Nairobi, Kenya
- Department of Global Health, University of Washington, Seattle, Washington, USA
| | - Connie Celum
- Department of Global Health, University of Washington, Seattle, Washington, USA
- Department of Medicine, University of Washington, Seattle, Washington, USA
- Department of Epidemiology, University of Washington, Seattle, Washington, USA
| | - Mark J Cameron
- Department of Population and Quantitative Health Science, Case Western Reserve University, Cleveland, Ohio, USA
| | - Jairam R Lingappa
- Department of Global Health, University of Washington, Seattle, Washington, USA
- Department of Medicine, University of Washington, Seattle, Washington, USA
- Department of Pediatrics, University of Washington, Seattle, Washington, USA
| | - Romel D Mackelprang
- Department of Global Health, University of Washington, Seattle, Washington, USA
- Department of Obstetrics and Gynecology, University of Washington, Seattle, Washington, USA
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Sahli S, Lefebvre F, Jelsch C, Ben Nasr C, Kaabi K. Synthesis, Crystal Structure, Hirshfeld Surface Analysis and DFT Calculations of Two New Cu(II) and Cd(II) Complexes with the 4-Amino-6-methoxypyrimidine Ligand. RUSS J COORD CHEM+ 2022. [DOI: 10.1134/s1070328422080061] [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: 11/23/2022]
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9
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Lefebvre F, Giorgi R. Utilisation des pseudo-résidus pour la sélection d’un modèle à risques instantanés multiplicatifs ou additifs. Rev Epidemiol Sante Publique 2021. [DOI: 10.1016/j.respe.2021.04.029] [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] Open
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10
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Gallardi D, Xue X, Mercier E, Mills T, Lefebvre F, Rise ML, Murray HM. RNA-seq analysis of the mantle transcriptome from Mytilus edulis during a seasonal spawning event in deep and shallow water culture sites on the northeast coast of Newfoundland, Canada. Mar Genomics 2021; 60:100865. [PMID: 33933383 DOI: 10.1016/j.margen.2021.100865] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 02/23/2021] [Accepted: 03/15/2021] [Indexed: 11/29/2022]
Abstract
The blue mussel (Mytilus edulis) has global commercial and ecological importance both in wild and cultured conditions. However there is a qualitative and quantitative lack of knowledge of the molecular mechanisms associated with its reproductive physiology, especially with reference to environmental interactions. Here we initiated a transcriptomic analysis (RNA-sequencing (RNA-seq)) of the mantle from both sexes sampled during a seasonal spawning event and from two culture depths (shallow-5 m; deep- 15 m). Mantle libraries were produced from 3 males and 3 females sampled from each of two shallow sites and two deep sites for a total of 12 replicate male and 12 replicate female libraries (24 total libraries). Overall a total of 2.3 billion raw 100 base reads with an average of 96.5 million reads/library were obtained and assembled into 296,118 transcripts with an average length of 568 bp. Overall, 315 transcripts from male libraries and 25 from female libraries were found to be upregulated in deep water as compared to shallow (edgeR adjusted p value ≤ 0.05). Conversely, 126 transcripts from male libraries and 135 from female libraries were found to be significantly downregulated at the same depth. Thirteen transcripts were selected for qPCR validation based on importance in reproduction, antimicrobial defense and metabolism. Of these, 9 RNA-seq identified transcripts were shown by qPCR to be differentially expressed between groups: 2 were upregulated in deep compared with shallow water (dhx38, mt-co1), 2 were upregulated for female compared with male mantle (pias2, mapkap1) and 6 genes (fndc3a, acbd3, klhl10, ccnb3, armc4, mt-co1) showed to be upregulated in males compared to females. The majority of qPCR studied transcripts were identified as involved in gamete development based on the UniProt database. This study further characterizes the importance of the mantle transcriptome during reproductive activities of M. edulis.
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Affiliation(s)
- Daria Gallardi
- Fisheries and Oceans Canada, 80 East White Hills Road, PO Box 5667, St. John's, NL A1C 5X1, Canada.
| | - Xi Xue
- Department of Ocean Sciences, Memorial University of Newfoundland, St. John's, NL A1C 5S7, Canada
| | - Eloi Mercier
- Canadian Centre for Computational Genomics - Montreal Node, McGill University and Genome Quebec Innovation Center, 740 Dr. Penfield Avenue, Montréal, Québec H3A 0G1, Canada
| | - Terry Mills
- Norlantic Processors Limited, P.O. Box 381, Botwood, NL A0H 1E0, Canada
| | - Francois Lefebvre
- Canadian Centre for Computational Genomics - Montreal Node, McGill University and Genome Quebec Innovation Center, 740 Dr. Penfield Avenue, Montréal, Québec H3A 0G1, Canada
| | - Matthew L Rise
- Department of Ocean Sciences, Memorial University of Newfoundland, St. John's, NL A1C 5S7, Canada
| | - Harry M Murray
- Fisheries and Oceans Canada, 80 East White Hills Road, PO Box 5667, St. John's, NL A1C 5X1, Canada
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11
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Ye H, Lefebvre F, Meyer V, Matillon X. E-réputation en urologie : analyse des notes des pages Google des urologues français. Prog Urol 2020. [DOI: 10.1016/j.purol.2020.07.188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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12
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Brureau L, Lefebvre F, Blanchet P, Multigner L, Blanchet A. Syndrome métabolique et cancer de la prostate dans une population d’ascendance afro-caribéenne. Prog Urol 2020. [DOI: 10.1016/j.purol.2020.07.007] [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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13
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Gandon-Renard M, Lefebvre F, Gomez S, Courilleau D, Journé C, Benitah J, Gomez A, Mercadier J. Moderate FKBP12.6 overexpression mitigates β-adrenergic-associated pro-arrhythmogenic Ca2+ events, but a higher expression level leads to a cardiomyopathic phenotype. Archives of Cardiovascular Diseases Supplements 2020. [DOI: 10.1016/j.acvdsp.2020.03.129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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14
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Barthe M, Lefebvre F, Itturioz X, Moine L, Tsapis N, Fischmeister R. PEGylated-Ligands as tools to study β-adrenergic receptor function on surface and T-tubule membranes. Archives of Cardiovascular Diseases Supplements 2020. [DOI: 10.1016/j.acvdsp.2020.03.100] [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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15
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Bayar I, Khedhiri L, Jeanneau E, Lefebvre F, Ben Nasr C. Synthesis, structural study and characterization of two new (ClC7H6NH3)ClO4.H2O isostructural hydrates of isomeric organic amine perchlorates. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128078] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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16
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Binet A, Scalabre A, Amar S, Alzahrani K, Boureau C, Bastard F, Lefebvre F, Koffi M, Moufidath S, Nasser D, Ouattara O, Kouame B, Lardy H. Operative versus conservative treatment for giant omphalocele: Study of French and Ivorian management. ANN CHIR PLAST ESTH 2020; 65:147-153. [DOI: 10.1016/j.anplas.2019.03.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Accepted: 03/14/2019] [Indexed: 11/30/2022]
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17
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Gensolen F, Ammour L, Bautista M, Heymes J, Fieux S, Kachel M, Lefebvre F, Pangaud P, Pinot L, Lanièce P, Baudot J, Gisquet P, Zimmer L, Verdier MA, Morel C. MAPSSIC, a communicating MAPS-based intracerebral positrons probe for deep brain imaging in awake and freely-moving rats. EPJ Web Conf 2020. [DOI: 10.1051/epjconf/202022509002] [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: 11/14/2022] Open
Abstract
Radioisotope imaging is a powerful tool to understand the biological mechanisms in-vivo, especially in the brain of small animals, providing a significant model to study the human brain.
In this context, we have developed and built a pixelated intracerebral positron probe to be embedded on awake and freely moving small animals, typically rats. This pixelated probe will represent a key instrument for neuroscientists to study neural mechanisms and correlate them to behavioral experiments.
We describe in this paper the simulations carried out to design the intracerebral sensor, its architecture, and the detection of positrons in a volume with a couple of sensors assembled back-to-back. We also depict the architecture of the wireless acquisition system. Finally, we present the first measurements performed in real-time by this miniaturized probe with sealed radioactive sources and a 18F solution.
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18
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Gandon-Renard M, Lefebvre F, Courilleau D, Gomez S, Gomez AM, Mercadier JJ. P3510Cardiac function and Ca2+-cycling are different according to the level of cardiac-specific FKBP12.6 overexpression. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.0374] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Cardiac ryanodine receptors (RyR2) have a key role in excitation-contraction coupling by releasing Ca2+ from sarcoplasmic reticulum (SR). In cardiomyocytes, two FK506 binding protein (FKBP) isoforms have been shown to bind and to stabilize RyR2 opening: FKBP12 and FKBP12.6, the later having a stronger affinity for RyR2 despite its lower abundance. Cardiac-specific FKBP12.6 overexpressing mice have fewer arrhythmias induced by β-adrenergic stimulation than wild type (WT) mice, suggesting an implication of FKBP12.6 in an antiarrhythmic mechanism. Heart failure (HF) syndrome has a high incidence of arrhythmias, which may be explained by a decrease of FKBP isoform expression.
The precise mechanism of the antiarrhythmic effect of FKBP12.6 overexpression remains unknown.
To gain insight into this mechanism, we developed 2 transgenic mouse lines with cardiac-specific moderate- (TG1) and high- (TG2) FKBP12.6 overexpression levels. We characterized cardiac function, [Ca2+]i cycling and its response to β-adrenergic stimulation in both mouse lines.
TG1 and TG2 mice developed mild and marked cardiac hypertrophy, respectively, associated with basal cardiac function increase in TG1 mice only. In stimulated cardiomyocytes, [Ca2+]i transient amplitude, measured by confocal microscopy, was higher in TG1 than in WT mice, without a significant difference in their SR Ca2+ content. The effect of β-adrenergic stimulation (50 nM isoproterenol) was attenuated in TG1 mice compared to WT mice, in association with the prevention of pro-arrhythmogenic Ca2+ release events, such as Ca2+ waves. In contrast, TG2 mice showed [Ca2+]i handling characteristics similar to HF, with slower [Ca2+]i transient relaxation. Interestingly, and contrary to HF, pro-arrhythmogenic Ca2+ release events were also reduced in TG2.
These results indicate that the level of FKBP12.6 overexpression has distinct effects on cardiac function and on Ca2+-cycling and its response to β-adrenergic stimulation.
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Affiliation(s)
- M Gandon-Renard
- University of Paris-Sud 11, Laboratory of Signaling and Cardiovascular Pathophysiology, INSERM UMR-S 1180, Chatenay-Malabry, France
| | - F Lefebvre
- University of Paris-Sud 11, Laboratory of Signaling and Cardiovascular Pathophysiology, INSERM UMR-S 1180, Chatenay-Malabry, France
| | - D Courilleau
- University of Paris-Sud 11, UMS-IPSIT, Chatenay-Malabry, France
| | - S Gomez
- University of Paris-Sud 11, Laboratory of Signaling and Cardiovascular Pathophysiology, INSERM UMR-S 1180, Chatenay-Malabry, France
| | - A M Gomez
- University of Paris-Sud 11, Laboratory of Signaling and Cardiovascular Pathophysiology, INSERM UMR-S 1180, Chatenay-Malabry, France
| | - J J Mercadier
- University of Paris-Sud 11, Laboratory of Signaling and Cardiovascular Pathophysiology, INSERM UMR-S 1180, Chatenay-Malabry, France
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Todeschi J, Bund C, Cebula H, Chibbaro S, Lhermitte B, Pin Y, Lefebvre F, Namer IJ, Proust F. Diagnostic value of fusion of metabolic and structural images for stereotactic biopsy of brain tumors without enhancement after contrast medium injection. Neurochirurgie 2019; 65:357-364. [PMID: 31560911 DOI: 10.1016/j.neuchi.2019.08.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [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: 03/16/2019] [Revised: 07/04/2019] [Accepted: 08/03/2019] [Indexed: 01/19/2023]
Abstract
BACKGROUND The heterogeneous nature of glioma makes it difficult to select a target for stereotactic biopsy that will be representative of grade severity on non-contrast-enhanced lesion imaging. The objective of this study was to evaluate the benefit of fusion of metabolic images (PET 18F-DOPA) with magnetic resonance imaging (MRI) morphological images for cerebral biopsy under stereotactic conditions of glioma without contrast enhancement. PATIENTS AND METHODS This single-center prospective observational study conducted between January 2016 and April 2018 included 20 consecutive patients (mean age: 45±19.5 years; range, 9-80 years) who underwent cerebral biopsy for a tumor without MRI enhancement but with hypermetabolism on 18F-FDOPA PET (positron emission tomography). Standard 18F-FDOPA uptake value (SUVmax) was determined for diagnosis of high-grade glioma, with comparison to histomolecular results. RESULTS Histological diagnosis was made in all patients (100%). Samples from hypermetabolism areas revealed high-grade glial tumor in 16 patients (80%). For a SUVmax threshold of 1.75, sensitivity was 81.2%, specificity 50%, PPV 86.7% and VPN 40% for diagnosis of high-grade glioma. No significant association between SUVmax and histomolecular mutation was found. CONCLUSION 18F-FDOPA metabolic imaging is an aid in choosing the target to be biopsied under stereotactic conditions in tumors without MR enhancement. Nevertheless, despite good sensitivity, 18F-FDOPA PET is insufficient for definitive diagnosis of high-grade tumor.
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Affiliation(s)
- J Todeschi
- Department of neurosurgery, hôpital de Hautepierre, hôpitaux universitaires de Strasbourg, 1, avenue Molière, 67200 Strasbourg, France.
| | - C Bund
- Department of nuclear medicine, hôpital de Hautepierre, 67200 Strasbourg, France
| | - H Cebula
- Department of neurosurgery, hôpital de Hautepierre, hôpitaux universitaires de Strasbourg, 1, avenue Molière, 67200 Strasbourg, France
| | - S Chibbaro
- Department of neurosurgery, hôpital de Hautepierre, hôpitaux universitaires de Strasbourg, 1, avenue Molière, 67200 Strasbourg, France
| | - B Lhermitte
- Department of pathology, hôpital de Hautepierre, 67200 Strasbourg, France
| | - Y Pin
- Department of radiotherapy, Centre Paul Strauss, 67065 Strasbourg, France
| | - F Lefebvre
- Department of public health, hôpitaux universitaires, 67200 Strasbourg, France
| | - I J Namer
- Department of nuclear medicine, hôpital de Hautepierre, 67200 Strasbourg, France
| | - F Proust
- Department of neurosurgery, hôpital de Hautepierre, hôpitaux universitaires de Strasbourg, 1, avenue Molière, 67200 Strasbourg, France
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20
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Diab D, Lefebvre F, Nassar G, Smagin N, Isber S, El Omar F, Naja A. An autonomous low-power management system for energy harvesting from a miniaturized spherical piezoelectric transducer. Rev Sci Instrum 2019; 90:075004. [PMID: 31370448 DOI: 10.1063/1.5084267] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Accepted: 06/14/2019] [Indexed: 06/10/2023]
Abstract
A new spherical vibrational energy harvesting device with an additional low power management circuit for optimizing the power transfer from the mechanical vibrations to a storage capacitor is presented. The device is devoted to underwater wireless sensor network applications due to its broadband vibrational energy harvesting, sensing, and communicating facilities. The sensing node container consists of two acrylic glass (PMMA) half-spherical shells and a Pz26 piezoelectric ring clamped between the shells. The energy harvesting, the management circuit, and communication electronics were fitted within the hollow portion of the sphere. A simulation model of the energy extraction and management system using spice has been developed. This simulation shows the feasibility and efficiency of the low power extraction circuit; a level of the necessary stored voltage was set at 3 V. The numerical model was validated by underwater experimental measurements; a voltage of 3 V was obtained at the terminals of a storage capacitor (47 µF) which was sufficient to supply the communication electronics. Power harvesting performances were measured relative to the transmitter/sensor distance and the incident acoustical field excitation voltage. Finally, 175 µW of harvested power has been measured with an excitation voltage of 8 Vpp at 5 cm distance from the emitter.
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Affiliation(s)
- D Diab
- Univ. Polytech. Hauts-de-France, CNRS, Univ. Lille, ISEN, Centrale Lille, UMR 8520 - IEMN, DOAE, F-59313 Valenciennes, France
| | - F Lefebvre
- Univ. Polytech. Hauts-de-France, CNRS, Univ. Lille, ISEN, Centrale Lille, UMR 8520 - IEMN, DOAE, F-59313 Valenciennes, France
| | - G Nassar
- Univ. Polytech. Hauts-de-France, CNRS, Univ. Lille, ISEN, Centrale Lille, UMR 8520 - IEMN, DOAE, F-59313 Valenciennes, France
| | - N Smagin
- Univ. Polytech. Hauts-de-France, CNRS, Univ. Lille, ISEN, Centrale Lille, UMR 8520 - IEMN, DOAE, F-59313 Valenciennes, France
| | - S Isber
- Department of Physics, American University of Beirut, Bliss Street, Riad El-Solh, 1107-2020 Beirut, Lebanon
| | - F El Omar
- Laboratory of Physics and Modeling, EDST, Lebanese University, Tripoli 1300, Lebanon
| | - A Naja
- Laboratory of Physics and Modeling, EDST, Lebanese University, Tripoli 1300, Lebanon
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21
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Bourgey M, Dali R, Eveleigh R, Chen KC, Letourneau L, Fillon J, Michaud M, Caron M, Sandoval J, Lefebvre F, Leveque G, Mercier E, Bujold D, Marquis P, Van PT, Anderson de Lima Morais D, Tremblay J, Shao X, Henrion E, Gonzalez E, Quirion PO, Caron B, Bourque G. GenPipes: an open-source framework for distributed and scalable genomic analyses. Gigascience 2019; 8:giz037. [PMID: 31185495 PMCID: PMC6559338 DOI: 10.1093/gigascience/giz037] [Citation(s) in RCA: 90] [Impact Index Per Article: 18.0] [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: 06/02/2018] [Revised: 09/28/2018] [Accepted: 03/10/2019] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND With the decreasing cost of sequencing and the rapid developments in genomics technologies and protocols, the need for validated bioinformatics software that enables efficient large-scale data processing is growing. FINDINGS Here we present GenPipes, a flexible Python-based framework that facilitates the development and deployment of multi-step workflows optimized for high-performance computing clusters and the cloud. GenPipes already implements 12 validated and scalable pipelines for various genomics applications, including RNA sequencing, chromatin immunoprecipitation sequencing, DNA sequencing, methylation sequencing, Hi-C, capture Hi-C, metagenomics, and Pacific Biosciences long-read assembly. The software is available under a GPLv3 open source license and is continuously updated to follow recent advances in genomics and bioinformatics. The framework has already been configured on several servers, and a Docker image is also available to facilitate additional installations. CONCLUSIONS GenPipes offers genomics researchers a simple method to analyze different types of data, customizable to their needs and resources, as well as the flexibility to create their own workflows.
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Affiliation(s)
- Mathieu Bourgey
- Canadian Centre for Computational Genomics, Montréal, QC, Canada
- McGill University and Genome Québec Innovation Center, Montréal, QC, Canada
| | - Rola Dali
- Canadian Centre for Computational Genomics, Montréal, QC, Canada
- McGill University and Genome Québec Innovation Center, Montréal, QC, Canada
| | - Robert Eveleigh
- Canadian Centre for Computational Genomics, Montréal, QC, Canada
- McGill University and Genome Québec Innovation Center, Montréal, QC, Canada
| | - Kuang Chung Chen
- McGill HPC Centre, McGill University, Montréal, QC, Canada
- Calcul Québec, QC, Canada
| | - Louis Letourneau
- Canadian Centre for Computational Genomics, Montréal, QC, Canada
- McGill University and Genome Québec Innovation Center, Montréal, QC, Canada
| | - Joel Fillon
- Department of Human Genetics, McGill University, Montréal, QC, Canada
| | - Marc Michaud
- McGill University and Genome Québec Innovation Center, Montréal, QC, Canada
| | - Maxime Caron
- Canadian Centre for Computational Genomics, Montréal, QC, Canada
- McGill University and Genome Québec Innovation Center, Montréal, QC, Canada
- Department of Human Genetics, McGill University, Montréal, QC, Canada
| | - Johanna Sandoval
- Beaulieu-Saucier Université de Montréal Pharmacogenomics Centre, Montréal, QC, Canada
| | - Francois Lefebvre
- Canadian Centre for Computational Genomics, Montréal, QC, Canada
- McGill University and Genome Québec Innovation Center, Montréal, QC, Canada
| | - Gary Leveque
- Canadian Centre for Computational Genomics, Montréal, QC, Canada
- McGill University and Genome Québec Innovation Center, Montréal, QC, Canada
| | - Eloi Mercier
- Canadian Centre for Computational Genomics, Montréal, QC, Canada
- McGill University and Genome Québec Innovation Center, Montréal, QC, Canada
| | - David Bujold
- Canadian Centre for Computational Genomics, Montréal, QC, Canada
- McGill University and Genome Québec Innovation Center, Montréal, QC, Canada
| | - Pascale Marquis
- Canadian Centre for Computational Genomics, Montréal, QC, Canada
- McGill University and Genome Québec Innovation Center, Montréal, QC, Canada
| | - Patrick Tran Van
- Department of Ecology and Evolution, University of Lausanne, Lausanne, Switzerland
| | | | - Julien Tremblay
- Energy, Mining and Environment, National Research Council Canada, Montréal, QC, Canada
| | - Xiaojian Shao
- Canadian Centre for Computational Genomics, Montréal, QC, Canada
- McGill University and Genome Québec Innovation Center, Montréal, QC, Canada
| | - Edouard Henrion
- Canadian Centre for Computational Genomics, Montréal, QC, Canada
- McGill University and Genome Québec Innovation Center, Montréal, QC, Canada
| | - Emmanuel Gonzalez
- Canadian Centre for Computational Genomics, Montréal, QC, Canada
- McGill University and Genome Québec Innovation Center, Montréal, QC, Canada
| | - Pierre-Olivier Quirion
- Canadian Centre for Computational Genomics, Montréal, QC, Canada
- McGill University and Genome Québec Innovation Center, Montréal, QC, Canada
| | - Bryan Caron
- McGill HPC Centre, McGill University, Montréal, QC, Canada
- Calcul Québec, QC, Canada
| | - Guillaume Bourque
- Canadian Centre for Computational Genomics, Montréal, QC, Canada
- McGill University and Genome Québec Innovation Center, Montréal, QC, Canada
- Department of Human Genetics, McGill University, Montréal, QC, Canada
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22
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Ammour L, Heymes J, Bautista M, Fieux S, Gensolen F, Kachel M, Dubois A, Lefebvre F, Pain F, Pangaud P, Pinot L, Baudot J, Gisquet-Verrier P, Laniece P, Morel C, Zimmer L, Verdier MA. MAPSSIC, a Novel CMOS Intracerebral Positrons Probe for Deep Brain Imaging in Awake and Freely Moving Rats: A Monte Carlo Study. IEEE Trans Radiat Plasma Med Sci 2019. [DOI: 10.1109/trpms.2018.2881301] [Citation(s) in RCA: 2] [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: 12/14/2022]
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23
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Samia el Hayek M, Gerbaud P, Valdivia C, Gomez S, Lefebvre F, Chen J, Valdivia H, Benitah J, Gomez A, Pereira L. Molecular basis of high glucose-mediated cardiac calcium mishandling. Archives of Cardiovascular Diseases Supplements 2019. [DOI: 10.1016/j.acvdsp.2019.02.115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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24
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Fourati S, Ribeiro SP, Blasco Tavares Pereira Lopes F, Talla A, Lefebvre F, Cameron M, Kaewkungwal J, Pitisuttithum P, Nitayaphan S, Rerks-Ngarm S, Kim JH, Thomas R, Gilbert PB, Tomaras GD, Koup RA, Michael NL, McElrath MJ, Gottardo R, Sékaly RP. Integrated systems approach defines the antiviral pathways conferring protection by the RV144 HIV vaccine. Nat Commun 2019; 10:863. [PMID: 30787294 PMCID: PMC6382801 DOI: 10.1038/s41467-019-08854-2] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [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: 01/23/2018] [Accepted: 01/25/2019] [Indexed: 12/31/2022] Open
Abstract
The RV144 vaccine trial showed reduced risk of HIV-1 acquisition by 31.2%, although mechanisms that led to protection remain poorly understood. Here we identify transcriptional correlates for reduced HIV-1 acquisition after vaccination. We assess the transcriptomic profile of blood collected from 223 participants and 40 placebo recipients. Pathway-level analysis of HIV-1 negative vaccinees reveals that type I interferons that activate the IRF7 antiviral program and type II interferon-stimulated genes implicated in antigen-presentation are both associated with a reduced risk of HIV-1 acquisition. In contrast, genes upstream and downstream of NF-κB, mTORC1 and host genes required for viral infection are associated with an increased risk of HIV-1 acquisition among vaccinees and placebo recipients, defining a vaccine independent association with HIV-1 acquisition. Our transcriptomic analysis of RV144 trial samples identifies IRF7 as a mediator of protection and the activation of mTORC1 as a correlate of the risk of HIV-1 acquisition. The RV144 vaccine trial showed reduced risk of HIV-1 acquisition, but mechanisms underlying protection are poorly understood. Here, Fourati et al. assess the transcriptomic profile of blood collected from 223 vaccinees and 40 placebo recipients and identify IRF7 as a mediator of protection.
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Affiliation(s)
- Slim Fourati
- Department of Pathology, Case Western Reserve University, Cleveland, OH, 44106, USA
| | | | | | - Aarthi Talla
- Department of Pathology, Case Western Reserve University, Cleveland, OH, 44106, USA
| | - Francois Lefebvre
- Canadian Center for Computational Genomics, Montréal, QC, H3A 0G1, Canada
| | - Mark Cameron
- Department of Epidemiology and Biostatistics, Case Western Reserve University, Cleveland, OH, 44106, USA
| | - J Kaewkungwal
- Faculty of Tropical Medicine, Mahidol University, Bangkok, 10400, Thailand
| | - P Pitisuttithum
- Faculty of Tropical Medicine, Mahidol University, Bangkok, 10400, Thailand
| | - S Nitayaphan
- Royal Thai Army, Armed Forces Research Institute of Medical Sciences, Bangkok, 10400, Thailand
| | - S Rerks-Ngarm
- Department of Disease Control, Ministry of Public Health, Nonthaburi, 11000, Thailand
| | - Jerome H Kim
- Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, MD, 20910, USA.,International Vaccine Institute, Seoul, 08826, Korea
| | - Rasmi Thomas
- Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, MD, 20910, USA
| | - Peter B Gilbert
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, 98109, USA
| | - Georgia D Tomaras
- Duke Human Vaccine Institute, Duke University, Durham, NC, 27710, USA
| | - Richard A Koup
- Vaccine Research Center, US National Institutes of Health, Bethesda, MD, 20892, USA
| | - Nelson L Michael
- Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, MD, 20910, USA
| | - M Juliana McElrath
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, 98109, USA
| | - Raphael Gottardo
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, 98109, USA
| | - Rafick-Pierre Sékaly
- Department of Pathology, Case Western Reserve University, Cleveland, OH, 44106, USA.
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Hamdi A, Khedhiri L, Kahlaoui M, Soudani S, Ferretti V, Lefebvre F, Jelsch C, Wenger E, Ben Nasr C. Synthesis, structural characterisations, NMR spectroscopy, Hirshfeld surface analysis and electrochemical study of a new organic cyclohexaphosphate, (C 6 H 7 FN) 4 (Li) 2 (P 6 O 18 ) (H 2 O) 6. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.05.062] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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26
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Bartoli F, Bailey M, Rode B, Mateo P, Gosain R, Plante J, Norman K, Gomez S, Lefebvre F, Rucker-Martin C, Gomez A, Beech D, Foster R, Benitah J, Sabourin J. Orai1 channels inhibition protects the heart from pressure overload-induced ventricular dysfunction. J Mol Cell Cardiol 2018. [DOI: 10.1016/j.yjmcc.2018.05.046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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27
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Gandon-Renard M, Lefebvre F, Courilleau D, Gómez S, Gerbaud P, Gomez A, Mercadier J. FKBP12.6 overexpression protects the cardiac myocyte from β-adrenergic stimulated proarrhythmogenic Ca2+ release in mice cardiomyocytes. J Mol Cell Cardiol 2018. [DOI: 10.1016/j.yjmcc.2018.05.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Merdji H, Clere-Jehl R, Dargent A, Andreu P, Large A, Lefebvre F, Schenck M, Helms J, Quenot JP, Meziani F. Out of the ICU shifting as a significant workload. Intensive Care Med 2018; 44:1582-1583. [PMID: 29947882 DOI: 10.1007/s00134-018-5240-7] [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] [Received: 05/08/2018] [Accepted: 05/21/2018] [Indexed: 10/14/2022]
Affiliation(s)
- H Merdji
- Faculté de Médecine, Hôpitaux Universitaires de Strasbourg, Service de Réanimation, Université de Strasbourg (UNISTRA), Nouvel Hôpital Civil 1, Place de l'Hôpital, 67091, Strasbourg Cedex, France.,INSERM (French National Institute of Health and Medical Research), UMR 1260, Regenerative Nanomedicine (RNM), FMTS, Strasbourg, France
| | - R Clere-Jehl
- Faculté de Médecine, Hôpitaux Universitaires de Strasbourg, Service de Réanimation, Université de Strasbourg (UNISTRA), Nouvel Hôpital Civil 1, Place de l'Hôpital, 67091, Strasbourg Cedex, France
| | - A Dargent
- Department of Intensive Care, François Mitterrand University Hospital, Dijon, France.,Lipnes Team, INSERM Research Center LNC-UMR 1231 and LabExLipSTIC, Dijon, France
| | - P Andreu
- Department of Intensive Care, François Mitterrand University Hospital, Dijon, France
| | - A Large
- Department of Intensive Care, François Mitterrand University Hospital, Dijon, France
| | - F Lefebvre
- Department of Public Health, Hôpitaux Universitaires de Strasbourg, Université de Strasbourg, Strasbourg, France
| | - M Schenck
- Faculté de Médecine, Hôpitaux Universitaires de Strasbourg, Service de Réanimation, Hôpital de Hautepierre, Université de Strasbourg (UNISTRA), Strasbourg, France
| | - J Helms
- Faculté de Médecine, Hôpitaux Universitaires de Strasbourg, Service de Réanimation, Université de Strasbourg (UNISTRA), Nouvel Hôpital Civil 1, Place de l'Hôpital, 67091, Strasbourg Cedex, France
| | - J P Quenot
- Department of Intensive Care, François Mitterrand University Hospital, Dijon, France.,Lipnes Team, INSERM Research Center LNC-UMR 1231 and LabExLipSTIC, Dijon, France.,INSERM CIC 1432, Clinical Epidemiology, University of Burgundy, Dijon, France
| | - F Meziani
- Faculté de Médecine, Hôpitaux Universitaires de Strasbourg, Service de Réanimation, Université de Strasbourg (UNISTRA), Nouvel Hôpital Civil 1, Place de l'Hôpital, 67091, Strasbourg Cedex, France. .,INSERM (French National Institute of Health and Medical Research), UMR 1260, Regenerative Nanomedicine (RNM), FMTS, Strasbourg, France.
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29
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Bayar I, Khedhiri L, Soudani S, Lefebvre F, Pereira da Silva P, Ben Nasr C. Crystal structure, quantum mechanical investigation, IR and NMR spectroscopy of two new organic salts: (C8H12NO)·[NO3] (I) and (C8H14N4)·[ClO4]2 (II). J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.02.032] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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30
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Le Borgne P, Perriguey A, Lefebvre F, Ugé S, Kauffmann P, Bilbault P. Infections neuroméningées aux urgences : une course contre la montre ! Med Mal Infect 2018. [DOI: 10.1016/j.medmal.2018.04.301] [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: 10/14/2022]
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31
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Jeantet L, Dell'Amico F, Forin-Wiart MA, Coutant M, Bonola M, Etienne D, Gresser J, Regis S, Lecerf N, Lefebvre F, de Thoisy B, Le Maho Y, Brucker M, Châtelain N, Laesser R, Crenner F, Handrich Y, Wilson R, Chevallier D. Combined use of two supervised learning algorithms to model sea turtle behaviours from tri-axial acceleration data. ACTA ACUST UNITED AC 2018; 221:jeb.177378. [PMID: 29661804 DOI: 10.1242/jeb.177378] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [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: 01/18/2018] [Accepted: 04/08/2018] [Indexed: 11/20/2022]
Abstract
Accelerometers are becoming ever more important sensors in animal-attached technology, providing data that allow determination of body posture and movement and thereby helping to elucidate behaviour in animals that are difficult to observe. We sought to validate the identification of sea turtle behaviours from accelerometer signals by deploying tags on the carapace of a juvenile loggerhead (Caretta caretta), an adult hawksbill (Eretmochelys imbricata) and an adult green turtle (Chelonia mydas) at Aquarium La Rochelle, France. We recorded tri-axial acceleration at 50 Hz for each species for a full day while two fixed cameras recorded their behaviours. We identified behaviours from the acceleration data using two different supervised learning algorithms, Random Forest and Classification And Regression Tree (CART), treating the data from the adult animals as separate from the juvenile data. We achieved a global accuracy of 81.30% for the adult hawksbill and green turtle CART model and 71.63% for the juvenile loggerhead, identifying 10 and 12 different behaviours, respectively. Equivalent figures were 86.96% for the adult hawksbill and green turtle Random Forest model and 79.49% for the juvenile loggerhead, for the same behaviours. The use of Random Forest combined with CART algorithms allowed us to understand the decision rules implicated in behaviour discrimination, and thus remove or group together some 'confused' or under--represented behaviours in order to get the most accurate models. This study is the first to validate accelerometer data to identify turtle behaviours and the approach can now be tested on other captive sea turtle species.
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Affiliation(s)
- L Jeantet
- DEPE-IPHC, UMR 7178, CNRS, 23 rue Becquerel, 67087 Strasbourg cedex 2, France
| | - F Dell'Amico
- Aquarium La Rochelle, quai Louis Prunier, 17000 La Rochelle, France
| | - M-A Forin-Wiart
- DEPE-IPHC, UMR 7178, CNRS, 23 rue Becquerel, 67087 Strasbourg cedex 2, France
| | - M Coutant
- Aquarium La Rochelle, quai Louis Prunier, 17000 La Rochelle, France
| | - M Bonola
- DEPE-IPHC, UMR 7178, CNRS, 23 rue Becquerel, 67087 Strasbourg cedex 2, France
| | - D Etienne
- Direction de l'Environnement, de l'Aménagement et du Logement Martinique, BP 7217, 97274 Schoelcher cedex, Martinique
| | - J Gresser
- Office de l'Eau Martinique, 7 avenue Condorcet, BP 32, 97201 Fort-de-France, Martinique
| | - S Regis
- DEPE-IPHC, UMR 7178, CNRS, 23 rue Becquerel, 67087 Strasbourg cedex 2, France
| | - N Lecerf
- DEPE-IPHC, UMR 7178, CNRS, 23 rue Becquerel, 67087 Strasbourg cedex 2, France
| | - F Lefebvre
- DEPE-IPHC, UMR 7178, CNRS, 23 rue Becquerel, 67087 Strasbourg cedex 2, France
| | - B de Thoisy
- Institut Pasteur de la Guyane, 23 avenue Pasteur, BP 6010, Cayenne cedex, Guyane
| | - Y Le Maho
- DEPE-IPHC, UMR 7178, CNRS, 23 rue Becquerel, 67087 Strasbourg cedex 2, France
| | - M Brucker
- DEPE-IPHC, UMR 7178, CNRS, 23 rue Becquerel, 67087 Strasbourg cedex 2, France
| | - N Châtelain
- DEPE-IPHC, UMR 7178, CNRS, 23 rue Becquerel, 67087 Strasbourg cedex 2, France
| | - R Laesser
- DEPE-IPHC, UMR 7178, CNRS, 23 rue Becquerel, 67087 Strasbourg cedex 2, France
| | - F Crenner
- DEPE-IPHC, UMR 7178, CNRS, 23 rue Becquerel, 67087 Strasbourg cedex 2, France
| | - Y Handrich
- DEPE-IPHC, UMR 7178, CNRS, 23 rue Becquerel, 67087 Strasbourg cedex 2, France
| | - R Wilson
- Biological Sciences, Institute of Environmental Sustainability, Swansea University, Swansea SA2 8PP, UK
| | - D Chevallier
- DEPE-IPHC, UMR 7178, CNRS, 23 rue Becquerel, 67087 Strasbourg cedex 2, France
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32
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Boyer P, Lefebvre F, Siraudin C, Montjean D, Le Coz P, Gervoise-Boyer M. [Satisfaction survey on the use of autologous oocyte vitrification in Assisted Reproductive Technologies]. ACTA ACUST UNITED AC 2018; 46:514-517. [PMID: 29622407 DOI: 10.1016/j.gofs.2018.03.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Accepted: 03/05/2018] [Indexed: 11/19/2022]
Abstract
OBJECTIVES We organized a survey for in-vitro fertilization couples who beneficiated on self-preservation of part of the oocyte cohort. The main objective was to measure couples' satisfaction. Secondary objectives were; to identify how patients had been informed; to verify that the use of the ART technique met their expectations, and how they felt about oocyte or embryo freezing. METHODS The data were collected by a questionnaire sent electronically to couples who had undergone partial vitrification of the oocyte cohort and at least one warming cycle. The questionnaire consisted of 2 components; one for the women and another one for their husband. RESULTS Eighty-eight women and 62 men responded to the survey respectively, representing 50.86% and 35.84% of the targeted patients. They were satisfied with a 90% rate, men and women combined. The information we give in the center is heard by couples and is part of the trust in the medical staff. Men are more worried than women about the risks of stimulation or ovarian pick-up and are not displeased to be called upon for sperm recovery for every attempt at oocyte warming. The ambiguity of the answers on the representation of the embryo confirms what is already described, but is independent of the acceptance of freezing whether it is oocyte or embryo. CONCLUSION In the same way as evaluating the results, the evaluation of patient satisfaction is useful for the implementation of therapeutic strategies and care pathways.
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Affiliation(s)
- P Boyer
- Service de médecine et biologie de la reproduction, hôpital Saint-Joseph, 26, boulevard de Louvain, 13008 Marseille, France
| | - F Lefebvre
- Service de médecine et biologie de la reproduction, hôpital Saint-Joseph, 26, boulevard de Louvain, 13008 Marseille, France
| | - C Siraudin
- Service de médecine et biologie de la reproduction, hôpital Saint-Joseph, 26, boulevard de Louvain, 13008 Marseille, France
| | - D Montjean
- Service de médecine et biologie de la reproduction, hôpital Saint-Joseph, 26, boulevard de Louvain, 13008 Marseille, France
| | - P Le Coz
- UMR n(o)7268 ADES, CNRS, EFS Aix-Marseille Université, 13385 Marseille cedex 5, France
| | - M Gervoise-Boyer
- Service de médecine et biologie de la reproduction, hôpital Saint-Joseph, 26, boulevard de Louvain, 13008 Marseille, France.
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Mika D, Bobin P, Lindner M, Hodzic A, Boet A, Lefebvre F, Rucker-Martin C, Lambert V, Fischmeister R, Vandecasteele G, Leroy J. PDE4 controls the β-adrenergic stimulation of the cardiac excitation-contraction coupling in right ventricular cardiomyocytes isolated from healthy and heart failure pigs. Archives of Cardiovascular Diseases Supplements 2018. [DOI: 10.1016/j.acvdsp.2018.02.083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Idres S, Perrin G, Domergue V, Lefebvre F, Fischmeister R, Leblais V, Manoury B. Contribution of BKCa channel to tone regulation by PDE3 and PDE4 depends on the mode of cAMP stimulation and is lost in heart failure. Archives of Cardiovascular Diseases Supplements 2018. [DOI: 10.1016/j.acvdsp.2018.02.079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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35
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Gandon-Renard M, Lefebvre F, Gerbaud P, Rouet-Benzineb P, Gomez A, Mercadier J. Low and high cardiac FKBP12.6 overexpression are associated with distinct phenotypes. Archives of Cardiovascular Diseases Supplements 2018. [DOI: 10.1016/j.acvdsp.2018.02.045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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36
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Singh G, Singh V, Wang ZX, Voisin G, Lefebvre F, Navenot JM, Evans B, Verma M, Anderson DW, Schneider JS. Effects of developmental lead exposure on the hippocampal methylome: Influences of sex and timing and level of exposure. Toxicol Lett 2018; 290:63-72. [PMID: 29571894 DOI: 10.1016/j.toxlet.2018.03.021] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Revised: 02/15/2018] [Accepted: 03/19/2018] [Indexed: 12/21/2022]
Abstract
Developmental lead (Pb) exposure results in persistent cognitive/behavioral impairments as well as an elevated risk for developing a variety of diseases in later life. Environmental exposures during development can result in a variety of epigenetic changes, including alterations in DNA methylation, that can influence gene expression patterns and affect the function and development of the nervous system. The present promoter-based methylation microarray profiling study explored the extent to which developmental Pb exposure may modify the methylome of a brain region, hippocampus, known to be sensitive to the effects of Pb exposure. Male and female Long Evans rats were exposed to 0 ppm, 150 ppm, 375 ppm, or 750 ppm Pb through perinatal exposures (gestation through lactation), early postnatal exposures (birth through weaning), or long-term postnatal exposures (birth through postnatal day 55). Results showed a significant contribution of sex to the hippocampal methylome and effects of Pb exposure level, with non-linear dose response effects on methylation. Surprisingly, the developmental period of exposure contributed only a small amount of variance to the overall data and gene ontology (GO) analysis revealed the largest number of overrepresented GO terms in the groups with the lowest level of exposure. The highest number of significant differentially methylated regions was found in females exposed to Pb at the lowest exposure level. Our data reinforce the significant effect that low level Pb exposure may have on gene-specific DNA methylation patterns in brain and that this occurs in a sex-dependent manner.
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Affiliation(s)
- G Singh
- Department of Pathology, Anatomy and Cell Biology, Thomas Jefferson University, Philadelphia, PA, USA.
| | - V Singh
- Department of Pathology, Anatomy and Cell Biology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Zi-Xuan Wang
- Department of Pathology, Anatomy and Cell Biology, Thomas Jefferson University, Philadelphia, PA, USA
| | - G Voisin
- Atelerics S.E.N.C, Montreal, QC, Canada
| | - F Lefebvre
- Department of Human Genetics, McGill University and Genome Quebec Innovation Centre, Montreal, QC, Canada
| | - J-M Navenot
- Department of Pathology, Anatomy and Cell Biology, Thomas Jefferson University, Philadelphia, PA, USA
| | - B Evans
- Department of Pathology, Anatomy and Cell Biology, Thomas Jefferson University, Philadelphia, PA, USA
| | - M Verma
- Department of Pathology, Anatomy and Cell Biology, Thomas Jefferson University, Philadelphia, PA, USA
| | - D W Anderson
- Department of Pathology, Anatomy and Cell Biology, Thomas Jefferson University, Philadelphia, PA, USA
| | - J S Schneider
- Department of Pathology, Anatomy and Cell Biology, Thomas Jefferson University, Philadelphia, PA, USA
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Rizk MY, Lapointe A, Lefebvre F, Barrington KJ. Norepinephrine infusion improves haemodynamics in the preterm infants during septic shock. Acta Paediatr 2018; 107:408-413. [PMID: 28992392 DOI: 10.1111/apa.14112] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [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: 07/07/2017] [Revised: 09/13/2017] [Accepted: 10/05/2017] [Indexed: 01/02/2023]
Abstract
AIM This study evaluated the clinical and haemodynamic effects of norepinephrine infusion in preterm infants. METHODS The effects of norepinephrine therapy for refractory hypotension were evaluated in preterm infants between April 2009 and April 2011 at the neonatal intensive care unit of Sainte-Justine Hospital, Montreal, Quebec. Changes in haemodynamics and clinical parameters were analysed eight hours before and eight hours after the start of norepinephrine infusion, and eight hours after its cessation. RESULTS During the study, 30 preterm infants at a mean gestational age of 26.5 ± 2.6 weeks (median: 25.7, 23.4-34) and birthweight of 903 ± 437 g (median 827, 450-2550) received norepinephrine infusion for neonatal septic shock. After eight hours of treatment, mean blood pressure, urine output and FiO2 significantly improved. Eight hours after cessation of norepinephrine infusion, the number of patients treated with other inotropes decreased significantly, 24 patients (80%) had normal mean blood pressure and 27 patients (90%) had normal urine output. CONCLUSION Norepinephrine therapy could be considered to improve blood pressure and urine output during neonatal septic shock in preterm infants. Further studies are needed to prove the efficacy and safety of norepinephrine infusion in neonates.
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Affiliation(s)
- MY Rizk
- Department of Pediatrics; CHU Ste-Justine; University of Montreal; Montreal QC Canada
| | - A Lapointe
- Department of Pediatrics; CHU Ste-Justine; University of Montreal; Montreal QC Canada
| | - F Lefebvre
- Department of Pediatrics; CHU Ste-Justine; University of Montreal; Montreal QC Canada
| | - KJ Barrington
- Department of Pediatrics; CHU Ste-Justine; University of Montreal; Montreal QC Canada
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Robinson CM, Lefebvre F, Poon BP, Bousard A, Fan X, Lathrop M, Tost J, Kim WY, Riazalhosseini Y, Ohh M. Consequences of VHL Loss on Global DNA Methylome. Sci Rep 2018; 8:3313. [PMID: 29463811 PMCID: PMC5820357 DOI: 10.1038/s41598-018-21524-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [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: 08/21/2017] [Accepted: 02/06/2018] [Indexed: 12/13/2022] Open
Abstract
In clear-cell renal cell carcinoma (ccRCC), loss of von Hippel-Lindau (VHL) tumour suppressor gene and reduced oxygen tension promote stabilisation of hypoxia-inducible factor (HIF) family of transcription factors, which promote changes in the expression of genes that contribute to oncogenesis. Multiple studies have demonstrated significant perturbations in DNA methylation in ccRCC via largely unclear mechanisms that modify the transcriptional output of tumour cells. Here, we show that the methylation status of the CpG dinucleotide within the consensus hypoxia-responsive element (HRE) markedly influences the binding of HIF and that the loss of VHL results in significant alterations in the DNA methylome. Surprisingly, hypoxia, which likewise promotes HIF stabilisation and activation, has relatively few effects on global DNA methylation. Gene expression analysis of ccRCC patient samples highlighted expression of a group of genes whose transcription correlated with methylation changes, including hypoxic responsive genes such as VEGF and TGF. These results suggest that the loss of VHL alters DNA methylation profile across the genome, commonly associated with and contributing to ccRCC progression.
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Affiliation(s)
- Claire M Robinson
- Department of Laboratory Medicine and Pathobiology, University of Toronto, 661 University Avenue, Room 1510, M5G1M1, Toronto, Ontario, Canada.,Department of Biochemistry, University of Toronto, 661 University Avenue, Room 1510, M5G1M1, Toronto, Ontario, Canada
| | - Francois Lefebvre
- Canadian Centre for Computational Genomics (C3G), 740 Doctor Penfield Avenue, Montreal, QC, H3A 0G1, Canada
| | - Betty P Poon
- Department of Laboratory Medicine and Pathobiology, University of Toronto, 661 University Avenue, Room 1510, M5G1M1, Toronto, Ontario, Canada.,Department of Biochemistry, University of Toronto, 661 University Avenue, Room 1510, M5G1M1, Toronto, Ontario, Canada
| | - Aurelie Bousard
- Laboratory for Epigenetics & Environment, Centre National de Génotypage, CEA-Institut de Génomique, 2 rue Gaston Crémieux, 91000, Evry, France
| | - Xiaojun Fan
- Department of Human Genetics, McGill University, 1205 Dr Penfield Avenue, Montreal, QC, H3A 1B1, Canada.,McGill University and Genome Quebec Innovation Centre, 740 Doctor Penfield Avenue, Montreal, QC, H3A 0G1, Canada
| | - Mark Lathrop
- Department of Human Genetics, McGill University, 1205 Dr Penfield Avenue, Montreal, QC, H3A 1B1, Canada.,McGill University and Genome Quebec Innovation Centre, 740 Doctor Penfield Avenue, Montreal, QC, H3A 0G1, Canada
| | - Jorg Tost
- Laboratory for Epigenetics & Environment, Centre National de Génotypage, CEA-Institut de Génomique, 2 rue Gaston Crémieux, 91000, Evry, France
| | - William Y Kim
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, CB 7295, Chapel Hill, North Carolina, USA
| | - Yasser Riazalhosseini
- Department of Human Genetics, McGill University, 1205 Dr Penfield Avenue, Montreal, QC, H3A 1B1, Canada.,McGill University and Genome Quebec Innovation Centre, 740 Doctor Penfield Avenue, Montreal, QC, H3A 0G1, Canada
| | - Michael Ohh
- Department of Laboratory Medicine and Pathobiology, University of Toronto, 661 University Avenue, Room 1510, M5G1M1, Toronto, Ontario, Canada. .,Department of Biochemistry, University of Toronto, 661 University Avenue, Room 1510, M5G1M1, Toronto, Ontario, Canada.
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Abstract
BACKGROUND Macrocyclic lactone (ML) anthelmintics are used for chemoprophylaxis for heartworm infection in dogs and cats. Cases of dogs becoming infected with heartworms, despite apparent compliance to recommended chemoprophylaxis with approved preventives, has led to such cases being considered as suspected lack of efficacy (LOE). Recently, microfilariae collected from a small number of LOE isolates were used as a source of infection of new host dogs and confirmed to have reduced susceptibility to ML in controlled efficacy studies using L3 challenge in dogs. A specific Dirofilaria immitis laboratory isolate named JYD-34 has also been confirmed to have less than 100% susceptibility to ML-based preventives. For preventive claims against heartworm disease, evidence of 100% efficacy is required by FDA-CVM. It was therefore of interest to determine whether JYD-34 has a genetic profile similar to other documented LOE and confirmed reduced susceptibility isolates or has a genetic profile similar to known ML-susceptible isolates. METHODS In this study, the 90Mbp whole genome of the JYD-34 strain was sequenced. This genome was compared using bioinformatics tools to pooled whole genomes of four well-characterized susceptible D. immitis populations, one susceptible Missouri laboratory isolate, as well as the pooled whole genomes of four LOE D. immitis populations. Fixation indexes (FST), which allow the genetic structure of each population (isolate) to be compared at the level of single nucleotide polymorphisms (SNP) across the genome, have been calculated. Forty-one previously reported SNP, that appeared to differentiate between susceptible and LOE and confirmed reduced susceptibility isolates, were also investigated in the JYD-34 isolate. RESULTS The FST analysis, and the analysis of the 41 SNP that appeared to differentiate reduced susceptibility from fully susceptible isolates, confirmed that the JYD-34 isolate has a genome similar to previously investigated LOE isolates, and isolates confirmed to have reduced susceptibility, and to be dissimilar to the susceptible isolates. CONCLUSIONS These results provide additional evidence for the link between genotype and the reduced susceptibility phenotype observed in such isolates as JYD-34. Further work on other isolates showing reduced susceptibility to ML is required to demonstrate the value of genetic analysis in predicting the response to ML chemoprophylaxis. The authors suggest that genetic analysis may be useful in helping to interpret the results of in vivo efficacy testing of ML heartworm preventives against D. immitis isolates.
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Affiliation(s)
- Catherine Bourguinat
- Institute of Parasitology, McGill University, 21, 111 Lakeshore Road, Sainte Anne de Bellevue, QC, H9X3V9, Canada
| | - Francois Lefebvre
- Canadian Centre for Computational Genomics, McGill University and Genome Quebec Innovation Centre, Montreal, QC, Canada
| | - Johanna Sandoval
- Canadian Centre for Computational Genomics, McGill University and Genome Quebec Innovation Centre, Montreal, QC, Canada
| | | | - Yovany Moreno
- Pharma Discovery & Research, Merial Inc, Duluth, GA, USA
| | - Roger K Prichard
- Institute of Parasitology, McGill University, 21, 111 Lakeshore Road, Sainte Anne de Bellevue, QC, H9X3V9, Canada.
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40
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Soudani S, Jeanneau E, Jelsch C, Lefebvre F, Ben Nasr C. Synthesis, X-ray single crystal structure, likelihood of occurrence of intermolecular contacts, spectroscopic investigation and DFT quantum chemical calculations of zwitterionic complex: 1-Ethylpiperaziniumtrichlorozincate (II). J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.05.096] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Nbili W, Soudani S, Kaabi K, Wojtaś M, Ferretti V, Lefebvre F, Jelsch C, Ben Nasr C. Crystal and geometry-optimized structure, Hirshfeld surface analysis and physicochemical studies of a new Co(II) complex with the ligand 2-amino-6-methoxypyrimidine. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.06.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Jaworski M, Janvier A, Lefebvre F, Luu TM. OUTCOMES OF EXTREMELY PRETERM INFANTS AT 18 MONTHS: CONTRAST BETWEEN MEDICAL CATEGORIZATION AND PARENTAL PERSPECTIVES. Paediatr Child Health 2017. [DOI: 10.1093/pch/pxx086.054] [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: 11/12/2022] Open
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Salah SB, da Silva PSP, Lefebvre F, Ben Nasr C, Ammar S, Mrad M. Synthesis, crystal structure, physico-chemical characterization of a new hybrid material, (2-hydroxyethyl)piperazine-1,4-diium hexachlorostannate(IV) monohydrate. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.02.073] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Ben Nasr M, Soudani S, Lefebvre F, Jelsch C, Ben Nasr C. Crystal structure, Hirshfeld surface analysis, quantum mechanical study and spectroscopic characterization of the non-centrosymmetric coordination compound bis(4-fluoroaniline)dichloridozincate. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.02.098] [Citation(s) in RCA: 4] [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: 11/28/2022]
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Keller A, Doré M, Antoni D, Menoux I, Thillays F, Clavier JB, Delpon G, Jarnet D, Bourrier C, Lefebvre F, Chibbaro S, Darié I, Proust F, Noël G. [Risk of radionecrosis after hypofractionated stereotactic radiotherapy targeting the postoperative resection cavity of brain metastases]. Cancer Radiother 2017; 21:377-388. [PMID: 28551018 DOI: 10.1016/j.canrad.2017.01.017] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2016] [Revised: 01/02/2017] [Accepted: 01/31/2017] [Indexed: 10/19/2022]
Abstract
PURPOSE To investigate the factors that potentially lead to brain radionecrosis after hypofractionated stereotactic radiotherapy targeting the postoperative resection cavity of brain metastases. METHODS AND MATERIALS A retrospective analysis conducted in two French centres, was performed in patients treated with trifractionated stereotactic radiotherapy (3×7.7Gy prescribed to the 70% isodose line) for resected brain metastases. Patients with previous whole-brain irradiation were excluded of the analysis. Radionecrosis was diagnosed according to a combination of criteria including clinical, serial imaging or, in some cases, histology. Univariate and multivariate analyses were performed to determine the predictive factors of radionecrosis including clinical and dosimetric variables such as volume of brain receiving a specific dose (V8Gy-V22Gy). RESULTS One hundred eighty-one patients, with a total of 189 cavities were treated between March 2008 and February 2015. Thirty-five patients (18.5%) developed radionecrosis after a median follow-up of 15 months (range: 3-38 months) after hypofractionated stereotactic radiotherapy. One third of patients with radionecrosis were symptomatic. Multivariate analysis showed that infra-tentorial location was predictive of radionecrosis (hazard ratio [HR]: 2.97; 95% confidence interval [95% CI]: 1.47-6.01; P=0.0025). None V8Gy-V22Gy was associated with appearance of radionecrosis, even if V14Gy trended toward significance (P=0.059). CONCLUSION Analysis of patients and treatment variables revealed that infratentorial location of brain metastases was predictive for radionecrosis after hypofractionated stereotactic radiotherapy for postoperative resection cavities.
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Affiliation(s)
- A Keller
- Département universitaire de radiothérapie, centre Paul-Strauss, Unicancer, 3, rue de la Porte-de-l'Hôpital, 67065 Strasbourg cedex, France
| | - M Doré
- Département de radiothérapie, institut de cancérologie de l'Ouest, boulevard Jacques-Monod, 44805 Saint-Herblain, France
| | - D Antoni
- Département universitaire de radiothérapie, centre Paul-Strauss, Unicancer, 3, rue de la Porte-de-l'Hôpital, 67065 Strasbourg cedex, France; Laboratoire EA 3430, fédération de médecine translationnelle de Strasbourg, université de Strasbourg, 67000 Strasbourg, France
| | - I Menoux
- Département universitaire de radiothérapie, centre Paul-Strauss, Unicancer, 3, rue de la Porte-de-l'Hôpital, 67065 Strasbourg cedex, France
| | - F Thillays
- Département de radiothérapie, institut de cancérologie de l'Ouest, boulevard Jacques-Monod, 44805 Saint-Herblain, France
| | - J B Clavier
- Département universitaire de radiothérapie, centre Paul-Strauss, Unicancer, 3, rue de la Porte-de-l'Hôpital, 67065 Strasbourg cedex, France
| | - G Delpon
- Département de radiothérapie, institut de cancérologie de l'Ouest, boulevard Jacques-Monod, 44805 Saint-Herblain, France
| | - D Jarnet
- Département universitaire de radiothérapie, centre Paul-Strauss, Unicancer, 3, rue de la Porte-de-l'Hôpital, 67065 Strasbourg cedex, France
| | - C Bourrier
- Département universitaire de radiothérapie, centre Paul-Strauss, Unicancer, 3, rue de la Porte-de-l'Hôpital, 67065 Strasbourg cedex, France
| | - F Lefebvre
- Laboratoire de biostatistiques, faculté de médecine, 4, rue Kirschleger, 67085 Strasbourg cedex, France
| | - S Chibbaro
- Département de neurochirurgie, hôpital de Hautepierre, avenue Molière, 67200 Strasbourg, France
| | - I Darié
- Service de neurochirurgie, centre hospitalier régional d'Orléans, 1, rue Porte-Madeleine, 45000 Orléans, France
| | - F Proust
- Département de neurochirurgie, hôpital de Hautepierre, avenue Molière, 67200 Strasbourg, France
| | - G Noël
- Département universitaire de radiothérapie, centre Paul-Strauss, Unicancer, 3, rue de la Porte-de-l'Hôpital, 67065 Strasbourg cedex, France; Laboratoire EA 3430, fédération de médecine translationnelle de Strasbourg, université de Strasbourg, 67000 Strasbourg, France.
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Belhaj Salah S, Pereira da Silva P, Lefebvre F, Ben Nasr C, Ammar S, Mrad M. Synthesis, structure and physicochemical characterization of the hybrid material [C6H16N2O]2 SnCl6·2Cl·2H2O. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2016.12.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [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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Arbi M, Khedhiri L, Wojtaś M, Jeanneau E, Lefebvre F, Ben Nasr C. Synthesis and characterization of two organic cation hydrogensulfates: 1-(2,5-dimethylphenyl)piperazine-1,4-diium bis(hydrogensulfate) monohydrate (SI) and 1-(2,3-dimethylphenyl)piperazine-1,4-diium bis(hydrogensulfate) (SII). J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2016.12.099] [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: 11/25/2022]
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Chauvin C, Schalber-Geyer A, Lefebvre F, Bopp C, Carrenard G, Marcoux L, Mayer J, Schwaab C, Joshi G, Diemunsch P. Early postoperative oral fluid intake in paediatric day case surgery influences the need for opioids and postoperative vomiting: a controlled randomized trial † †This Article is accompanied by Editorial Aew450. Br J Anaesth 2017; 118:407-414. [DOI: 10.1093/bja/aew463] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/19/2016] [Indexed: 02/06/2023] Open
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Essid M, Aloui Z, Ferretti V, Abid S, Lefebvre F, Rzaigui M, Nasr CB. Crystal structure, Hirshfeld surface and spectroscopic studies of the noncentrosymmetric Bi(III) halide complex: [C8H12N]3BiCl6. Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2016.12.012] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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