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Cullot G, Boutin J, Fayet S, Prat F, Rosier J, Cappellen D, Lamrissi I, Pennamen P, Bouron J, Amintas S, Thibault C, Moranvillier I, Laharanne E, Merlio JP, Guyonnet-Duperat V, Blouin JM, Richard E, Dabernat S, Moreau-Gaudry F, Bedel A. Cell cycle arrest and p53 prevent ON-target megabase-scale rearrangements induced by CRISPR-Cas9. Nat Commun 2023; 14:4072. [PMID: 37429857 DOI: 10.1038/s41467-023-39632-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 06/22/2023] [Indexed: 07/12/2023] Open
Abstract
The CRISPR-Cas9 system has revolutionized our ability to precisely modify the genome and has led to gene editing in clinical applications. Comprehensive analysis of gene editing products at the targeted cut-site has revealed a complex spectrum of outcomes. ON-target genotoxicity is underestimated with standard PCR-based methods and necessitates appropriate and more sensitive detection methods. Here, we present two complementary Fluorescence-Assisted Megabase-scale Rearrangements Detection (FAMReD) systems that enable the detection, quantification, and cell sorting of edited cells with megabase-scale loss of heterozygosity (LOH). These tools reveal rare complex chromosomal rearrangements caused by Cas9-nuclease and show that LOH frequency depends on cell division rate during editing and p53 status. Cell cycle arrest during editing suppresses the occurrence of LOH without compromising editing. These data are confirmed in human stem/progenitor cells, suggesting that clinical trials should consider p53 status and cell proliferation rate during editing to limit this risk by designing safer protocols.
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Affiliation(s)
- G Cullot
- Bordeaux University, INSERM, BRIC, U1312, F-33000, Bordeaux, France
| | - J Boutin
- Bordeaux University, INSERM, BRIC, U1312, F-33000, Bordeaux, France
- CHU de Bordeaux, Biochemistry Laboratory, F-33000, Bordeaux, France
| | - S Fayet
- Bordeaux University, INSERM, BRIC, U1312, F-33000, Bordeaux, France
| | - F Prat
- Bordeaux University, INSERM, BRIC, U1312, F-33000, Bordeaux, France
| | - J Rosier
- Bordeaux University, INSERM, BRIC, U1312, F-33000, Bordeaux, France
| | - D Cappellen
- Bordeaux University, INSERM, BRIC, U1312, F-33000, Bordeaux, France
- CHU de Bordeaux, Tumor Biology and Tumor Bank Laboratory, F-33000, Bordeaux, France
| | - I Lamrissi
- Bordeaux University, INSERM, BRIC, U1312, F-33000, Bordeaux, France
| | - P Pennamen
- CHU de Bordeaux, department of medical genetics, F-33000, Bordeaux, France
| | - J Bouron
- CHU de Bordeaux, department of medical genetics, F-33000, Bordeaux, France
| | - S Amintas
- Bordeaux University, INSERM, BRIC, U1312, F-33000, Bordeaux, France
- CHU de Bordeaux, Tumor Biology and Tumor Bank Laboratory, F-33000, Bordeaux, France
| | - C Thibault
- Bordeaux University, INSERM, BRIC, U1312, F-33000, Bordeaux, France
| | - I Moranvillier
- Bordeaux University, INSERM, BRIC, U1312, F-33000, Bordeaux, France
| | - E Laharanne
- CHU de Bordeaux, Tumor Biology and Tumor Bank Laboratory, F-33000, Bordeaux, France
| | - J P Merlio
- Bordeaux University, INSERM, BRIC, U1312, F-33000, Bordeaux, France
- CHU de Bordeaux, Tumor Biology and Tumor Bank Laboratory, F-33000, Bordeaux, France
| | - V Guyonnet-Duperat
- Bordeaux University, INSERM, BRIC, U1312, F-33000, Bordeaux, France
- Vect'UB, vectorology platform, INSERM US 005-CNRS UAR 3427-TBM-Core, Bordeaux university, Bordeaux, France
| | - J M Blouin
- Bordeaux University, INSERM, BRIC, U1312, F-33000, Bordeaux, France
- CHU de Bordeaux, Biochemistry Laboratory, F-33000, Bordeaux, France
| | - E Richard
- Bordeaux University, INSERM, BRIC, U1312, F-33000, Bordeaux, France
- CHU de Bordeaux, Biochemistry Laboratory, F-33000, Bordeaux, France
| | - S Dabernat
- Bordeaux University, INSERM, BRIC, U1312, F-33000, Bordeaux, France
- CHU de Bordeaux, Biochemistry Laboratory, F-33000, Bordeaux, France
| | - F Moreau-Gaudry
- Bordeaux University, INSERM, BRIC, U1312, F-33000, Bordeaux, France.
- CHU de Bordeaux, Biochemistry Laboratory, F-33000, Bordeaux, France.
| | - A Bedel
- Bordeaux University, INSERM, BRIC, U1312, F-33000, Bordeaux, France.
- CHU de Bordeaux, Biochemistry Laboratory, F-33000, Bordeaux, France.
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Lammers NA, Van Wanrooij LL, van Dalen JW, van Gool WA, Schmand B, Moll van Charante EP, de Haan EHF, Van de Beek D, Nederkoorn PJ, Richard E. The course of post-stroke apathy in relation to cognitive functioning: a prospective longitudinal cohort study. Neuropsychol Dev Cogn B Aging Neuropsychol Cogn 2023; 30:94-105. [PMID: 34493161 DOI: 10.1080/13825585.2021.1967276] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Apathy is common after stroke and has been associated with cognitive impairment. However, causality between post-stroke apathy and cognitive impairment remains unclear. We assessed the course of apathy in relation to changes in cognitive functioning in stroke survivors. Using the Apathy Scale (AS) and cognitive tests on memory, processing speed and executive functioning at six- and 15 months post-stroke we tested for associations between (1) AS-scores and (change in) cognitive scores; (2) apathy course (persistent/incident/resolved) and cognitive change scores. Of 117 included participants, 29% had persistent apathy, 13% apathy resolving over time and 10% apathy emerging between 6-15 months post-stroke. Higher AS-scores were cross-sectionally and longitudinally associated with lower cognitive scores. Relations between apathy and cognitive change scores were ambiguous. These inconsistent relations between apathy and changes in cognition over time suggest that post-stroke apathy does not directly impact cognitive performance. Both these sequelae of stroke require separate attention.
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Affiliation(s)
- N A Lammers
- Department of Brain and Cognition, University of Amsterdam, Amsterdam, The Netherlands.,Department of Neurology, Amsterdam University Medical Center, Amsterdam Neuroscience, Meibergdreef, Amsterdam, The Netherlands
| | - L L Van Wanrooij
- Department of Neurology, Amsterdam University Medical Center, Amsterdam Neuroscience, Meibergdreef, Amsterdam, The Netherlands
| | - J W van Dalen
- Department of Neurology, Amsterdam University Medical Center, Amsterdam Neuroscience, Meibergdreef, Amsterdam, The Netherlands
| | - W A van Gool
- Department of Neurology, Amsterdam University Medical Center, Amsterdam Neuroscience, Meibergdreef, Amsterdam, The Netherlands
| | - B Schmand
- Department of Brain and Cognition, University of Amsterdam, Amsterdam, The Netherlands.,Department of Medical Psychology, Amsterdam University Medical Center, Amsterdam, The Netherlands
| | - E P Moll van Charante
- Department of General Practice, Amsterdam University Medical Center, Amsterdam, The Netherlands
| | - E H F de Haan
- Department of Brain and Cognition, University of Amsterdam, Amsterdam, The Netherlands
| | - D Van de Beek
- Department of Neurology, Amsterdam University Medical Center, Amsterdam Neuroscience, Meibergdreef, Amsterdam, The Netherlands
| | - P J Nederkoorn
- Department of Neurology, Amsterdam University Medical Center, Amsterdam Neuroscience, Meibergdreef, Amsterdam, The Netherlands
| | - E Richard
- Department of Neurology, Amsterdam University Medical Center, Amsterdam Neuroscience, Meibergdreef, Amsterdam, The Netherlands.,Department of Neurology, Donders Institute for Brain, Behavior and Cognition, Radboud University Medical Center, Nijmegen, The Netherlands
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Mercié P, Redonnet I, Ged C, Bronnimann D, Blouin J, Mesli S, Vial G, Jourde W, Ribeiro E, Gensous N, Duffau P, Richard E. Hyperhomocystéinémie sévère induite par le givosiran au cours d’une porphyrie aiguë intermittente : le traitement par vitamine B6 est efficace. Rev Med Interne 2022. [DOI: 10.1016/j.revmed.2022.10.239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Briso-Montiano Á, Vilas A, Richard E, Ruiz-Sala P, Morato E, Desviat LR, Ugarte M, Rodríguez-Pombo P, Pérez B. Hepatocyte-like cells differentiated from methylmalonic aciduria cblB type induced pluripotent stem cells: A platform for the evaluation of pharmacochaperoning. Biochim Biophys Acta Mol Basis Dis 2022; 1868:166433. [PMID: 35569737 DOI: 10.1016/j.bbadis.2022.166433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 04/22/2022] [Accepted: 05/04/2022] [Indexed: 11/24/2022]
Abstract
Methylmalonic aciduria cblB type (MMA cblB type, MMAB OMIM #251110), caused by a deficiency in the enzyme ATP:cob(I)alamin adenosyltransferase (ATR, E.C_2. 5.1.17), is a severe metabolic disorder with a poor prognosis despite treatment. We recently described the potential therapeutic use of pharmacological chaperones (PCs) after increasing the residual activity of ATR in patient-derived fibroblasts. The present work reports the successful generation of hepatocyte-like cells (HLCs) differentiated from two healthy and two MMAB induced pluripotent stem cell (iPSC) lines, and the use of this platform for testing the effects of PCs. The MMAB cells produced little ATR, showed reduced residual ATR activity, and had higher concentrations of methylmalonic acid compared to healthy HLCs. Differential proteome analysis revealed the two MMAB HCLs to show reproducible differentiation, but this was not so for the healthy HLCs. Interestingly, PC treatment in combination with vitamin B12 increased the amount of ATR available, and subsequently ATR activity, in both MMAB HLCs. More importantly, the treatment significantly reduced the methylmalonic acid content of both. In summary, the HLC model would appear to be an excellent candidate for the pharmacological testing of the described PCs, for analyzing the effects of new drugs, and investigating the repurposing of older drugs, before testing in animal models.
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Affiliation(s)
- Á Briso-Montiano
- Centro de Diagnóstico de Enfermedades Moleculares (CEDEM), Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain; Centro de Biología Molecular "Severo Ochoa" UAM-CSIC, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), ISCIII, Madrid, Spain; Instituto de Investigación Sanitaria Hospital La Paz (IdiPAZ), ISCIII, Madrid, Spain.
| | - A Vilas
- Centro de Diagnóstico de Enfermedades Moleculares (CEDEM), Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain; Centro de Biología Molecular "Severo Ochoa" UAM-CSIC, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), ISCIII, Madrid, Spain; Instituto de Investigación Sanitaria Hospital La Paz (IdiPAZ), ISCIII, Madrid, Spain.
| | - E Richard
- Centro de Diagnóstico de Enfermedades Moleculares (CEDEM), Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain; Centro de Biología Molecular "Severo Ochoa" UAM-CSIC, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), ISCIII, Madrid, Spain; Instituto de Investigación Sanitaria Hospital La Paz (IdiPAZ), ISCIII, Madrid, Spain.
| | - P Ruiz-Sala
- Centro de Diagnóstico de Enfermedades Moleculares (CEDEM), Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain; Centro de Biología Molecular "Severo Ochoa" UAM-CSIC, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), ISCIII, Madrid, Spain; Instituto de Investigación Sanitaria Hospital La Paz (IdiPAZ), ISCIII, Madrid, Spain.
| | - E Morato
- Centro de Biología Molecular "Severo Ochoa" UAM-CSIC, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain.
| | - L R Desviat
- Centro de Diagnóstico de Enfermedades Moleculares (CEDEM), Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain; Centro de Biología Molecular "Severo Ochoa" UAM-CSIC, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), ISCIII, Madrid, Spain; Instituto de Investigación Sanitaria Hospital La Paz (IdiPAZ), ISCIII, Madrid, Spain.
| | - M Ugarte
- Centro de Diagnóstico de Enfermedades Moleculares (CEDEM), Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain; Centro de Biología Molecular "Severo Ochoa" UAM-CSIC, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), ISCIII, Madrid, Spain; Instituto de Investigación Sanitaria Hospital La Paz (IdiPAZ), ISCIII, Madrid, Spain.
| | - P Rodríguez-Pombo
- Centro de Diagnóstico de Enfermedades Moleculares (CEDEM), Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain; Centro de Biología Molecular "Severo Ochoa" UAM-CSIC, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), ISCIII, Madrid, Spain; Instituto de Investigación Sanitaria Hospital La Paz (IdiPAZ), ISCIII, Madrid, Spain.
| | - B Pérez
- Centro de Diagnóstico de Enfermedades Moleculares (CEDEM), Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain; Centro de Biología Molecular "Severo Ochoa" UAM-CSIC, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), ISCIII, Madrid, Spain; Instituto de Investigación Sanitaria Hospital La Paz (IdiPAZ), ISCIII, Madrid, Spain.
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den Brok MGHE, Hoevenaar-Blom MP, Coley N, Andrieu S, van Dalen J, Meiller Y, Guillemont J, Brayne C, van Gool WA, Moll van Charante EP, Richard E. The Effect of Multidomain Interventions on Global Cognition, Symptoms of Depression and Apathy - A Pooled Analysis of Two Randomized Controlled Trials. J Prev Alzheimers Dis 2022; 9:96-103. [PMID: 35098979 DOI: 10.14283/jpad.2021.53] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
BACKGROUND Cardiovascular risk factors and lifestyle factors are associated with an increased risk of cognitive decline and dementia in observational studies, and have been targeted by multidomain interventions. OBJECTIVES We pooled individual participant data from two multi-domain intervention trials on cognitive function and symptoms of depression to increase power and facilitate subgroup analyses. DESIGN Pooled analysis of individual participant data. SETTING Prevention of Dementia by Intensive Vascular Care trial (preDIVA) and Multidomain Alzheimer Preventive Trial (MAPT). PARTICIPANTS Community-dwelling individuals, free from dementia at baseline. INTERVENTION Multidomain interventions focused on cardiovascular and lifestyle related risk factors. MEASUREMENTS Data on cognitive functioning, depressive symptoms and apathy were collected at baseline, 2 years and 3-4 years of follow-up as available per study. We analyzed crude scores with linear mixed models for overall cognitive function (Mini Mental State Examination [MMSE]), and symptoms of depression and apathy (15-item Geriatric Depression Scale). Prespecified subgroup analyses were performed for sex, educational level, baseline MMSE <26, history of hypertension, and history of stroke, myocardial infarction and/or diabetes mellitus. RESULTS We included 4162 individuals (median age 74 years, IQR 72, 76) with a median follow-up duration of 3.7 years (IQR 3.0 to 4.1 years). No differences between intervention and control groups were observed on change in cognitive functioning scores and symptoms of depression and apathy scores in the pooled study population. The MMSE declined less in the intervention groups in those with MMSE <26 at baseline (N=250; MD: 0.84; 95%CI: 0.15 to 1.54; p<0.001). CONCLUSIONS We found no conclusive evidence that multidomain interventions reduce the risk of global cognitive decline, symptoms of depression or apathy in a mixed older population. Our results suggest that these interventions may be more effective in those with lower baseline cognitive functioning. Extended follow-up for dementia occurrence is important to inform on the potential long-term effects of multidomain interventions.
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Affiliation(s)
- M G H E den Brok
- Melina G.H.E. den Brok, MD, Department of Neurology (910), Radboud University Medical Center, PO Box 9101, 6500 HB Nijmegen, the Netherlands,
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Verbeke S, Perret R, Chaire V, Richard E, Velasco V, Giles F, Cavalcante L, Italiano A. GSK3-beta as a candidate therapeutic target in soft tissue sarcomas. J Hematol Oncol 2021; 14:202. [PMID: 34857030 PMCID: PMC8641200 DOI: 10.1186/s13045-021-01215-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Accepted: 11/09/2021] [Indexed: 01/13/2023] Open
Abstract
Soft tissue sarcoma (STS) is a predominantly fatal rare malignancy with inadequate treatment options. Glycogen synthase kinase 3β (GSK-3β) is an emerging target in human malignancies. Its therapeutic relevance in STS is unknown. We analyzed the prognostic impact of GSK-3β gene and protein expression in two independent cohorts of patients with STS. We then treated STS cell lines and mice xenografts with a novel GSK-3 inhibitor 9-ING-41 alone or in combination with chemotherapy. We demonstrated that 9-ING-41 treatment induced significant STS cells apoptosis and was synergistic in vivo when combined with chemotherapy. Mechanistically, 9-ING-41 induces significant apoptosis of STS cells via suppression of NF-κB-mediated X-linked inhibitor of apoptosis protein (XIAP) expression. These data support the inclusion of patients with STS in clinical studies of 9-ING-41 alone and in combination with chemotherapy.
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Affiliation(s)
- S Verbeke
- Sarcoma Unit, Institut Bergonié, 229 cours de l'Argonne, 33000, Bordeaux, France
- INSERM, U1218, Bordeaux, France
| | - R Perret
- Department of Pathology, Institut Bergonié, Bordeaux, France
| | - V Chaire
- Sarcoma Unit, Institut Bergonié, 229 cours de l'Argonne, 33000, Bordeaux, France
- INSERM, U1218, Bordeaux, France
| | | | - V Velasco
- Department of Pathology, Institut Bergonié, Bordeaux, France
| | - F Giles
- Actuate Therapeutics, Fort Worth, TX, USA
| | | | - A Italiano
- Sarcoma Unit, Institut Bergonié, 229 cours de l'Argonne, 33000, Bordeaux, France.
- INSERM, U1218, Bordeaux, France.
- Faculty of Medicine, University of Bordeaux, Bordeaux, France.
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Latulippe K, LeBlanc A, Gagnon MP, Boivin K, Lavoie P, Dufour J, Raynard EP, Richard E, Lamontagne MÈ. Organizational knowledge translation strategies for allied health professionals in traumatology settings: realist review protocol. Syst Rev 2021; 10:255. [PMID: 34556170 PMCID: PMC8461924 DOI: 10.1186/s13643-021-01793-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Accepted: 08/17/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Knowledge translation (KT) is an important means of improving the health service quality. Most research on the effectiveness of KT strategies has focused on individual strategies, i.e., those directly targeting the modification of allied health professionals' knowledge, attitudes, and behaviors, for example. In general, these strategies are moderately effective in changing practices (maximum 10% change). Effecting change in organizational contexts (e.g., change readiness, general and specific organizational capacity, organizational routines) is part of a promising new avenue to service quality improvement through the implementation of evidence-based practices. The objective of this study will be to identify why, how, and under what conditions organizational KT strategies have been shown to be effective or ineffective in changing the (a) knowledge, (b) attitudes, and (c) clinical behaviors of allied health professionals in traumatology settings. METHODS This is a realist review protocol involving four iterative steps: (1) Initial theory formulation, (2) search for Evidence search, (3) knowledge extraction and synthesis, and (4) recommendations. We will search electronic databases such as PubMed, Embase, CINHAL, Cochrane Library, and Conference Proceedings Citation Index - Science. The studies included will be those relating to the use of organizational KT strategies in trauma settings, regardless of study designs, published between January 1990 and October 2020, and presenting objective measures that demonstrate change in allied health professionals' knowledge, attitudes, and clinical behaviors. Two independent reviewers will select, screen, and extract the data related to all relevant sources in order to refine or refute the context-mechanism-outcome (CMO) configurations developed in the initial theory and identify new CMO configurations. DISCUSSION Using a systematic and rigorous method, this review will help guide decision-makers and researchers in choosing the best organizational strategies to optimize the implementation of evidence-based practices. SYSTEMATIC REVIEW REGISTRATION PROSPERO CRD42020216105.
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Affiliation(s)
- Karine Latulippe
- Centre de recherche interdisciplinaire en réadaptation du Montréal métropolitain (CRIR), Pavillon Lindsay de l'IURDPM, 6363, Chemin Hudson, Montréal, Québec, H3S 1M9, Canada
| | - Annie LeBlanc
- Département de médecine familiale et de médecine d'urgence, Faculté de médecine, Pavillon Ferdinand-Vandry, Université Laval, 1050 av. de la Médecine, Québec, Québec, G1V 0A6, Canada
| | - Marie-Pierre Gagnon
- Chaire de recherche du Canada en technologies et pratiques en santé, Faculté des sciences infirmières, Pavillon Ferdinand-Vandry, Université Laval, Canada, 1050 av. de la Médecine, Québec, Québec, G1V 0A6, Canada
| | - Katia Boivin
- Direction de l'enseignement et des affaires universitaires, CHU de Québec-Université Laval, 2705 Boulevard Laurier, Québec, Québec, G1V 4G2, Canada
| | - Pascale Lavoie
- Direction de l'enseignement et des affaires universitaires, Centre intégré universitaire de santé et de services sociaux de la Capitale-Nationale, 525, boul. Wilfrid Hamel, Québec, Québec, G1M 2S8, Canada
| | - Joëlle Dufour
- Centre interdisciplinaire de recherche en réadaptation et intégration sociale, Institut de réadaptation en déficience physique de Québec, 525 boul. Wilfrid-Hamel, Québec, Québec, G1M 2S8, Canada
| | | | - Eve Richard
- Bibliothèque de l'Université Laval, 2345, allée des Bibliothèques, Québec, Québec, G1V 0A6, Canada
| | - Marie-Ève Lamontagne
- Centre interdisciplinaire de recherche en réadaptation et intégration sociale, Institut de réadaptation en déficience physique de Québec, 525 boul. Wilfrid-Hamel, Québec, Québec, G1M 2S8, Canada.
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8
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Bedel A, Boutin J, Amintas S, Lamrissi-Garcia I, Rousseau B, Poglio S, Brunet de la Grange P, Moranvillier I, Blouin JM, Richard E, Moreau-Gaudry F, Dabernat S. Spleen route accelerates engraftment of human hematopoietic stem cells. Biochem Biophys Res Commun 2021; 569:23-28. [PMID: 34216994 DOI: 10.1016/j.bbrc.2021.06.054] [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: 06/08/2021] [Revised: 06/11/2021] [Accepted: 06/16/2021] [Indexed: 10/21/2022]
Abstract
Intravenous injections of human hematopoietic stem cells (hHSCs) is routinely used in clinic and for modeling hematopoiesis in mice. However, unspecific dilution in vascular system and non-hematopoietic organs challenges engraftment efficiency. Although spleen is capable of extra medullar hematopoiesis, its ability to support human HSC transplantation has never been evaluated. We demonstrate that intra-splenic injection results in high and sustained engraftment of hHSCs into immune-deficient mice, with higher chimerisms than with intravenous or intra-femoral injections. Our results support that spleen microenvironment provides a niche for HSCs amplification and offers a new route for efficient HSC transplantation.
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Affiliation(s)
- A Bedel
- Université de Bordeaux, Bordeaux, France; INSERM U1035, Bordeaux, France; CHU de Bordeaux, Bordeaux, France
| | - J Boutin
- Université de Bordeaux, Bordeaux, France; INSERM U1035, Bordeaux, France; CHU de Bordeaux, Bordeaux, France
| | - S Amintas
- Université de Bordeaux, Bordeaux, France; INSERM U1035, Bordeaux, France; CHU de Bordeaux, Bordeaux, France
| | - I Lamrissi-Garcia
- Université de Bordeaux, Bordeaux, France; INSERM U1035, Bordeaux, France
| | - B Rousseau
- Université de Bordeaux, Bordeaux, France; Animalerie spécialisée, Université de Bordeaux, Bordeaux, France
| | - S Poglio
- Université de Bordeaux, Bordeaux, France; INSERM U1035, Bordeaux, France
| | - P Brunet de la Grange
- Université de Bordeaux, Bordeaux, France; INSERM U1035, Bordeaux, France; Etablissement Français du Sang-Aquitaine Limousin (EFS-AqLi), Bordeaux, France
| | - I Moranvillier
- Université de Bordeaux, Bordeaux, France; INSERM U1035, Bordeaux, France
| | - J M Blouin
- Université de Bordeaux, Bordeaux, France; INSERM U1035, Bordeaux, France; CHU de Bordeaux, Bordeaux, France
| | - E Richard
- Université de Bordeaux, Bordeaux, France; INSERM U1035, Bordeaux, France; CHU de Bordeaux, Bordeaux, France
| | - F Moreau-Gaudry
- Université de Bordeaux, Bordeaux, France; INSERM U1035, Bordeaux, France; CHU de Bordeaux, Bordeaux, France.
| | - S Dabernat
- Université de Bordeaux, Bordeaux, France; INSERM U1035, Bordeaux, France; CHU de Bordeaux, Bordeaux, France
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Boutin J, Rosier J, Cappellen D, Prat F, Toutain J, Pennamen P, Bouron J, Rooryck C, Merlio JP, Lamrissi-Garcia I, Cullot G, Amintas S, Guyonnet-Duperat V, Ged C, Blouin JM, Richard E, Dabernat S, Moreau-Gaudry F, Bedel A. CRISPR-Cas9 globin editing can induce megabase-scale copy-neutral losses of heterozygosity in hematopoietic cells. Nat Commun 2021; 12:4922. [PMID: 34389729 PMCID: PMC8363739 DOI: 10.1038/s41467-021-25190-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 07/29/2021] [Indexed: 12/26/2022] Open
Abstract
CRISPR-Cas9 is a promising technology for gene therapy. However, the ON-target genotoxicity of CRISPR-Cas9 nuclease due to DNA double-strand breaks has received little attention and is probably underestimated. Here we report that genome editing targeting globin genes induces megabase-scale losses of heterozygosity (LOH) from the globin CRISPR-Cas9 cut-site to the telomere (5.2 Mb). In established lines, CRISPR-Cas9 nuclease induces frequent terminal chromosome 11p truncations and rare copy-neutral LOH. In primary hematopoietic progenitor/stem cells, we detect 1.1% of clones (7/648) with acquired megabase LOH induced by CRISPR-Cas9. In-depth analysis by SNP-array reveals the presence of copy-neutral LOH. This leads to 11p15.5 partial uniparental disomy, comprising two Chr11p15.5 imprinting centers (H19/IGF2:IG-DMR/IC1 and KCNQ1OT1:TSS-DMR/IC2) and impacting H19 and IGF2 expression. While this genotoxicity is a safety concern for CRISPR clinical trials, it is also an opportunity to model copy-neutral-LOH for genetic diseases and cancers.
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Affiliation(s)
- J Boutin
- Bordeaux University, Bordeaux, France
- INSERM U1035, Biotherapy of Genetic Diseases, Inflammatory disorders and Cancers, Bordeaux, France
- University Hospital Bordeaux, Biochemistry Laboratory, Bordeaux, France
- Laboratory of Excellence, Gr-Ex, Bordeaux, France
| | - J Rosier
- Bordeaux University, Bordeaux, France
- INSERM U1035, Biotherapy of Genetic Diseases, Inflammatory disorders and Cancers, Bordeaux, France
- Laboratory of Excellence, Gr-Ex, Bordeaux, France
| | - D Cappellen
- Bordeaux University, Bordeaux, France
- INSERM U1035, Biotherapy of Genetic Diseases, Inflammatory disorders and Cancers, Bordeaux, France
- Laboratory of Excellence, Gr-Ex, Bordeaux, France
- University Hospital Bordeaux, Tumor Biology and Tumor Bank Laboratory, Bordeaux, France
| | - F Prat
- Bordeaux University, Bordeaux, France
- INSERM U1035, Biotherapy of Genetic Diseases, Inflammatory disorders and Cancers, Bordeaux, France
- Laboratory of Excellence, Gr-Ex, Bordeaux, France
| | - J Toutain
- Bordeaux University, MRGM INSERM U1211, CHU de Bordeaux, Service de Génétique Médicale, Bordeaux, France
| | - P Pennamen
- Bordeaux University, MRGM INSERM U1211, CHU de Bordeaux, Service de Génétique Médicale, Bordeaux, France
| | - J Bouron
- Bordeaux University, MRGM INSERM U1211, CHU de Bordeaux, Service de Génétique Médicale, Bordeaux, France
| | - C Rooryck
- Bordeaux University, Bordeaux, France
- Bordeaux University, MRGM INSERM U1211, CHU de Bordeaux, Service de Génétique Médicale, Bordeaux, France
| | - J P Merlio
- Bordeaux University, Bordeaux, France
- University Hospital Bordeaux, Tumor Biology and Tumor Bank Laboratory, Bordeaux, France
- INSERM U1053, Bordeaux Research in Translational Oncology, Bordeaux, France
| | - I Lamrissi-Garcia
- Bordeaux University, Bordeaux, France
- INSERM U1035, Biotherapy of Genetic Diseases, Inflammatory disorders and Cancers, Bordeaux, France
- Laboratory of Excellence, Gr-Ex, Bordeaux, France
| | - G Cullot
- Bordeaux University, Bordeaux, France
- INSERM U1035, Biotherapy of Genetic Diseases, Inflammatory disorders and Cancers, Bordeaux, France
- Laboratory of Excellence, Gr-Ex, Bordeaux, France
| | - S Amintas
- Bordeaux University, Bordeaux, France
- INSERM U1035, Biotherapy of Genetic Diseases, Inflammatory disorders and Cancers, Bordeaux, France
- Laboratory of Excellence, Gr-Ex, Bordeaux, France
- University Hospital Bordeaux, Tumor Biology and Tumor Bank Laboratory, Bordeaux, France
| | - V Guyonnet-Duperat
- INSERM US 005-CNRS UMS 342-TBM-Core, Bordeaux University, Bordeaux, France
| | - C Ged
- Bordeaux University, Bordeaux, France
- INSERM U1035, Biotherapy of Genetic Diseases, Inflammatory disorders and Cancers, Bordeaux, France
- University Hospital Bordeaux, Biochemistry Laboratory, Bordeaux, France
- Laboratory of Excellence, Gr-Ex, Bordeaux, France
| | - J M Blouin
- Bordeaux University, Bordeaux, France
- INSERM U1035, Biotherapy of Genetic Diseases, Inflammatory disorders and Cancers, Bordeaux, France
- University Hospital Bordeaux, Biochemistry Laboratory, Bordeaux, France
- Laboratory of Excellence, Gr-Ex, Bordeaux, France
| | - E Richard
- Bordeaux University, Bordeaux, France
- INSERM U1035, Biotherapy of Genetic Diseases, Inflammatory disorders and Cancers, Bordeaux, France
- University Hospital Bordeaux, Biochemistry Laboratory, Bordeaux, France
- Laboratory of Excellence, Gr-Ex, Bordeaux, France
| | - S Dabernat
- Bordeaux University, Bordeaux, France
- INSERM U1035, Biotherapy of Genetic Diseases, Inflammatory disorders and Cancers, Bordeaux, France
- University Hospital Bordeaux, Biochemistry Laboratory, Bordeaux, France
- Laboratory of Excellence, Gr-Ex, Bordeaux, France
| | - F Moreau-Gaudry
- Bordeaux University, Bordeaux, France.
- INSERM U1035, Biotherapy of Genetic Diseases, Inflammatory disorders and Cancers, Bordeaux, France.
- University Hospital Bordeaux, Biochemistry Laboratory, Bordeaux, France.
- Laboratory of Excellence, Gr-Ex, Bordeaux, France.
- INSERM US 005-CNRS UMS 342-TBM-Core, Bordeaux University, Bordeaux, France.
| | - A Bedel
- Bordeaux University, Bordeaux, France
- INSERM U1035, Biotherapy of Genetic Diseases, Inflammatory disorders and Cancers, Bordeaux, France
- University Hospital Bordeaux, Biochemistry Laboratory, Bordeaux, France
- Laboratory of Excellence, Gr-Ex, Bordeaux, France
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10
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Hafdi M, Richard E, van Gool SE, Moll van Charante EP, van Gool WA. [Practice variation in diagnostic testing for dementia; a nation-wide overview]. Ned Tijdschr Geneeskd 2021; 165:D5315. [PMID: 33651499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
OBJECTIVE To determine variation in diagnostic strategies for diagnosing dementia between Dutch hospitals. DESIGN Descriptive, retrospective research based on claim data of Dutch health insurers. METHOD Information on the use of diagnostic ancillary services carried out from 2015 to 2018 was collected via national-level insurance claims for patients who received a (new) diagnose-coding for dementia in 2018. Hospitals were included in the analysis if they diagnosed >50 patients with dementia. We distinguished academic medical centres (AMC), non-academic training hospitals (TH) and general hospitals (GH). RESULTS In 2018, 20.073 new cases of dementia were diagnosed in 71 hospitals. The percentages of patients undergoing MRI/CT-imaging ranged from 37 to 99% (median 76.7%), neuropsychological-assessment from 0-89% (median 31.8%), cerebrospinal fluid examination from 0-14% (median 2.4%), PET/SPECT-imaging from 0-16% (median 6.2%) and electroencephalography from 1-20% (median 5.8%). Practice variation was comparable in AMCs, THs and GHs and was evidently skewed for PET/SPECT-imaging, electroencephalography and cerebrospinal fluid examination. There were no distinct differences according to case-mix characteristics or hospital volume. The percentage of patients subjected to ancillary diagnostic investigations decreased sharply with increasing age. CONCLUSION In the Netherlands, diagnostic ancillary methods used vary widely between hospitals both in frequency and modality. This variation may be driven by limited evidence of diagnostic accuracy and added value of different diagnostic tests, variations in doctor and patient preferences and differences in available diagnostic techniques per hospital. Further exploration of this heterogeneity may help to identify a strategy that combines the most benefit with the least burden.
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Affiliation(s)
- M Hafdi
- Amsterdam UMC, locatie AMC, afd. Neurologie, Amsterdam
- Contact: M. Hafdi
| | - E Richard
- Amsterdam UMC, locatie AMC, afd. Public andOccupational Health, Amsterdam (tevens: Radboudumc, afd. Neurologie, Donders Institutefor Brain, CognitionandBehaviour, Nijmegen)
| | | | - E P Moll van Charante
- Amsterdam UMC, locatie AMC, afd. Public andOccupational Health, Amsterdam(tevens: afd. Huisartsgeneeskunde)
| | - W A van Gool
- Amsterdam UMC, locatie AMC, afd. Public andOccupational Health, Amsterdam
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11
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Wurtzer S, Marechal V, Mouchel JM, Maday Y, Teyssou R, Richard E, Almayrac JL, Moulin L. Evaluation of lockdown effect on SARS-CoV-2 dynamics through viral genome quantification in waste water, Greater Paris, France, 5 March to 23 April 2020. Euro Surveill 2020; 25. [PMID: 33334397 DOI: 10.2807/15607917.es.2020.25.50.2000776] [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] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023] Open
Abstract
IntroductionSevere acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the etiological agent of coronavirus disease (COVID-19). People infected with SARS-CoV-2 may exhibit no or mild non-specific symptoms; thus, they may contribute to silent circulation of the virus among humans. Since SARS-CoV-2 RNA can be detected in stool samples, monitoring SARS-CoV-2 RNA in waste water (WW) has been proposed as a complementary tool to investigate virus circulation in human populations.AimTo test if the quantification of SARS-CoV-2 genomes in WW correlates with the number of symptomatic or non-symptomatic carriers.MethodWe performed a time-course quantitative analysis of SARS-CoV-2 by RT-qPCR in raw WW samples collected from several major WW treatment plants in Greater Paris. The study period was 5 March to 23 April 2020, including the lockdown period in France (from 17 March).ResultsWe showed that the increase of genome units in raw WW accurately followed the increase of human COVID-19 cases observed at the regional level. Of note, the viral genome could be detected before the epidemic grew massively (around 8 March). Equally importantly, a marked decrease in the quantities of genome units was observed concomitantly with the reduction in the number of new COVID-19 cases, 29 days following the lockdown.ConclusionThis work suggests that a quantitative monitoring of SARS-CoV-2 genomes in WW could generate important additional information for improved monitoring of SARS-CoV-2 circulation at local or regional levels and emphasises the role of WW-based epidemiology.
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Affiliation(s)
- S Wurtzer
- Eau de Paris, R&D Laboratory, DRDQE Ivry/Seine, France
| | - V Marechal
- Sorbonne Université, INSERM, Centre de Recherche Saint-Antoine2, Paris, France
- These authors are co-founders of the COVID-IA/PANDEMIA initiative
| | - J M Mouchel
- Sorbonne Université, CNRS, EPHE, UMR 7619 Metis, , e-LTER Zone Atelier Seine, Paris, France
| | - Y Maday
- These authors are co-founders of the COVID-IA/PANDEMIA initiative
- Sorbonne Université, CNRS, Université de Paris, Laboratoire Jacques-Louis Lions (LJLL), et Institut Universitaire de France, Paris, France
| | - R Teyssou
- Department of Virology, Institut de Recherche Biomédicale des Armées, Bretigny sur Orge, France
| | - E Richard
- Eau de Paris, R&D Laboratory, DRDQE Ivry/Seine, France
| | - J L Almayrac
- SIAAP, Service process-laboratoire SIAAP site Seine Amont, Valenton, France
| | - L Moulin
- Eau de Paris, R&D Laboratory, DRDQE Ivry/Seine, France
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12
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Wurtzer S, Marechal V, Mouchel JM, Maday Y, Teyssou R, Richard E, Almayrac JL, Moulin L. Evaluation of lockdown effect on SARS-CoV-2 dynamics through viral genome quantification in waste water, Greater Paris, France, 5 March to 23 April 2020. Euro Surveill 2020. [PMID: 33334397 DOI: 10.1101/2020.04.12.20062679%j] [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] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2023] Open
Abstract
IntroductionSevere acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the etiological agent of coronavirus disease (COVID-19). People infected with SARS-CoV-2 may exhibit no or mild non-specific symptoms; thus, they may contribute to silent circulation of the virus among humans. Since SARS-CoV-2 RNA can be detected in stool samples, monitoring SARS-CoV-2 RNA in waste water (WW) has been proposed as a complementary tool to investigate virus circulation in human populations.AimTo test if the quantification of SARS-CoV-2 genomes in WW correlates with the number of symptomatic or non-symptomatic carriers.MethodWe performed a time-course quantitative analysis of SARS-CoV-2 by RT-qPCR in raw WW samples collected from several major WW treatment plants in Greater Paris. The study period was 5 March to 23 April 2020, including the lockdown period in France (from 17 March).ResultsWe showed that the increase of genome units in raw WW accurately followed the increase of human COVID-19 cases observed at the regional level. Of note, the viral genome could be detected before the epidemic grew massively (around 8 March). Equally importantly, a marked decrease in the quantities of genome units was observed concomitantly with the reduction in the number of new COVID-19 cases, 29 days following the lockdown.ConclusionThis work suggests that a quantitative monitoring of SARS-CoV-2 genomes in WW could generate important additional information for improved monitoring of SARS-CoV-2 circulation at local or regional levels and emphasises the role of WW-based epidemiology.
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Affiliation(s)
- S Wurtzer
- Eau de Paris, R&D Laboratory, DRDQE Ivry/Seine, France
| | - V Marechal
- Sorbonne Université, INSERM, Centre de Recherche Saint-Antoine2, Paris, France
- These authors are co-founders of the COVID-IA/PANDEMIA initiative
| | - J M Mouchel
- Sorbonne Université, CNRS, EPHE, UMR 7619 Metis, , e-LTER Zone Atelier Seine, Paris, France
| | - Y Maday
- These authors are co-founders of the COVID-IA/PANDEMIA initiative
- Sorbonne Université, CNRS, Université de Paris, Laboratoire Jacques-Louis Lions (LJLL), et Institut Universitaire de France, Paris, France
| | - R Teyssou
- Department of Virology, Institut de Recherche Biomédicale des Armées, Bretigny sur Orge, France
| | - E Richard
- Eau de Paris, R&D Laboratory, DRDQE Ivry/Seine, France
| | - J L Almayrac
- SIAAP, Service process-laboratoire SIAAP site Seine Amont, Valenton, France
| | - L Moulin
- Eau de Paris, R&D Laboratory, DRDQE Ivry/Seine, France
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13
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Wurtzer S, Marechal V, Mouchel JM, Maday Y, Teyssou R, Richard E, Almayrac JL, Moulin L. Evaluation of lockdown effect on SARS-CoV-2 dynamics through viral genome quantification in waste water, Greater Paris, France, 5 March to 23 April 2020. Euro Surveill 2020. [PMID: 33334397 DOI: 10.1101/2020.04.12.2006267] [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] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2023] Open
Abstract
IntroductionSevere acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the etiological agent of coronavirus disease (COVID-19). People infected with SARS-CoV-2 may exhibit no or mild non-specific symptoms; thus, they may contribute to silent circulation of the virus among humans. Since SARS-CoV-2 RNA can be detected in stool samples, monitoring SARS-CoV-2 RNA in waste water (WW) has been proposed as a complementary tool to investigate virus circulation in human populations.AimTo test if the quantification of SARS-CoV-2 genomes in WW correlates with the number of symptomatic or non-symptomatic carriers.MethodWe performed a time-course quantitative analysis of SARS-CoV-2 by RT-qPCR in raw WW samples collected from several major WW treatment plants in Greater Paris. The study period was 5 March to 23 April 2020, including the lockdown period in France (from 17 March).ResultsWe showed that the increase of genome units in raw WW accurately followed the increase of human COVID-19 cases observed at the regional level. Of note, the viral genome could be detected before the epidemic grew massively (around 8 March). Equally importantly, a marked decrease in the quantities of genome units was observed concomitantly with the reduction in the number of new COVID-19 cases, 29 days following the lockdown.ConclusionThis work suggests that a quantitative monitoring of SARS-CoV-2 genomes in WW could generate important additional information for improved monitoring of SARS-CoV-2 circulation at local or regional levels and emphasises the role of WW-based epidemiology.
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Affiliation(s)
- S Wurtzer
- Eau de Paris, R&D Laboratory, DRDQE Ivry/Seine, France
| | - V Marechal
- Sorbonne Université, INSERM, Centre de Recherche Saint-Antoine2, Paris, France
- These authors are co-founders of the COVID-IA/PANDEMIA initiative
| | - J M Mouchel
- Sorbonne Université, CNRS, EPHE, UMR 7619 Metis, , e-LTER Zone Atelier Seine, Paris, France
| | - Y Maday
- These authors are co-founders of the COVID-IA/PANDEMIA initiative
- Sorbonne Université, CNRS, Université de Paris, Laboratoire Jacques-Louis Lions (LJLL), et Institut Universitaire de France, Paris, France
| | - R Teyssou
- Department of Virology, Institut de Recherche Biomédicale des Armées, Bretigny sur Orge, France
| | - E Richard
- Eau de Paris, R&D Laboratory, DRDQE Ivry/Seine, France
| | - J L Almayrac
- SIAAP, Service process-laboratoire SIAAP site Seine Amont, Valenton, France
| | - L Moulin
- Eau de Paris, R&D Laboratory, DRDQE Ivry/Seine, France
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14
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Wurtzer S, Marechal V, Mouchel JM, Maday Y, Teyssou R, Richard E, Almayrac JL, Moulin L. Evaluation of lockdown effect on SARS-CoV-2 dynamics through viral genome quantification in waste water, Greater Paris, France, 5 March to 23 April 2020. Euro Surveill 2020; 25:2000776. [PMID: 33334397 PMCID: PMC7812418 DOI: 10.2807/1560-7917.es.2020.25.50.2000776] [Citation(s) in RCA: 219] [Impact Index Per Article: 54.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 09/20/2020] [Indexed: 01/04/2023] Open
Abstract
IntroductionSevere acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the etiological agent of coronavirus disease (COVID-19). People infected with SARS-CoV-2 may exhibit no or mild non-specific symptoms; thus, they may contribute to silent circulation of the virus among humans. Since SARS-CoV-2 RNA can be detected in stool samples, monitoring SARS-CoV-2 RNA in waste water (WW) has been proposed as a complementary tool to investigate virus circulation in human populations.AimTo test if the quantification of SARS-CoV-2 genomes in WW correlates with the number of symptomatic or non-symptomatic carriers.MethodWe performed a time-course quantitative analysis of SARS-CoV-2 by RT-qPCR in raw WW samples collected from several major WW treatment plants in Greater Paris. The study period was 5 March to 23 April 2020, including the lockdown period in France (from 17 March).ResultsWe showed that the increase of genome units in raw WW accurately followed the increase of human COVID-19 cases observed at the regional level. Of note, the viral genome could be detected before the epidemic grew massively (around 8 March). Equally importantly, a marked decrease in the quantities of genome units was observed concomitantly with the reduction in the number of new COVID-19 cases, 29 days following the lockdown.ConclusionThis work suggests that a quantitative monitoring of SARS-CoV-2 genomes in WW could generate important additional information for improved monitoring of SARS-CoV-2 circulation at local or regional levels and emphasises the role of WW-based epidemiology.
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Affiliation(s)
- S Wurtzer
- Eau de Paris, R&D Laboratory, DRDQE Ivry/Seine, France
| | - V Marechal
- Sorbonne Université, INSERM, Centre de Recherche Saint-Antoine2, Paris, France
- These authors are co-founders of the COVID-IA/PANDEMIA initiative
| | - J M Mouchel
- Sorbonne Université, CNRS, EPHE, UMR 7619 Metis, , e-LTER Zone Atelier Seine, Paris, France
| | - Y Maday
- These authors are co-founders of the COVID-IA/PANDEMIA initiative
- Sorbonne Université, CNRS, Université de Paris, Laboratoire Jacques-Louis Lions (LJLL), et Institut Universitaire de France, Paris, France
| | - R Teyssou
- Department of Virology, Institut de Recherche Biomédicale des Armées, Bretigny sur Orge, France
| | - E Richard
- Eau de Paris, R&D Laboratory, DRDQE Ivry/Seine, France
| | - J L Almayrac
- SIAAP, Service process-laboratoire SIAAP site Seine Amont, Valenton, France
| | - L Moulin
- Eau de Paris, R&D Laboratory, DRDQE Ivry/Seine, France
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15
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Wurtzer S, Marechal V, Mouchel JM, Maday Y, Teyssou R, Richard E, Almayrac JL, Moulin L. Evaluation of lockdown effect on SARS-CoV-2 dynamics through viral genome quantification in waste water, Greater Paris, France, 5 March to 23 April 2020. Euro Surveill 2020. [PMID: 33334397 DOI: 10.1807/1560-7917.es.2020.25.50.2000776] [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] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/22/2023] Open
Abstract
IntroductionSevere acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the etiological agent of coronavirus disease (COVID-19). People infected with SARS-CoV-2 may exhibit no or mild non-specific symptoms; thus, they may contribute to silent circulation of the virus among humans. Since SARS-CoV-2 RNA can be detected in stool samples, monitoring SARS-CoV-2 RNA in waste water (WW) has been proposed as a complementary tool to investigate virus circulation in human populations.AimTo test if the quantification of SARS-CoV-2 genomes in WW correlates with the number of symptomatic or non-symptomatic carriers.MethodWe performed a time-course quantitative analysis of SARS-CoV-2 by RT-qPCR in raw WW samples collected from several major WW treatment plants in Greater Paris. The study period was 5 March to 23 April 2020, including the lockdown period in France (from 17 March).ResultsWe showed that the increase of genome units in raw WW accurately followed the increase of human COVID-19 cases observed at the regional level. Of note, the viral genome could be detected before the epidemic grew massively (around 8 March). Equally importantly, a marked decrease in the quantities of genome units was observed concomitantly with the reduction in the number of new COVID-19 cases, 29 days following the lockdown.ConclusionThis work suggests that a quantitative monitoring of SARS-CoV-2 genomes in WW could generate important additional information for improved monitoring of SARS-CoV-2 circulation at local or regional levels and emphasises the role of WW-based epidemiology.
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Affiliation(s)
- S Wurtzer
- Eau de Paris, R&D Laboratory, DRDQE Ivry/Seine, France
| | - V Marechal
- Sorbonne Université, INSERM, Centre de Recherche Saint-Antoine2, Paris, France
- These authors are co-founders of the COVID-IA/PANDEMIA initiative
| | - J M Mouchel
- Sorbonne Université, CNRS, EPHE, UMR 7619 Metis, , e-LTER Zone Atelier Seine, Paris, France
| | - Y Maday
- These authors are co-founders of the COVID-IA/PANDEMIA initiative
- Sorbonne Université, CNRS, Université de Paris, Laboratoire Jacques-Louis Lions (LJLL), et Institut Universitaire de France, Paris, France
| | - R Teyssou
- Department of Virology, Institut de Recherche Biomédicale des Armées, Bretigny sur Orge, France
| | - E Richard
- Eau de Paris, R&D Laboratory, DRDQE Ivry/Seine, France
| | - J L Almayrac
- SIAAP, Service process-laboratoire SIAAP site Seine Amont, Valenton, France
| | - L Moulin
- Eau de Paris, R&D Laboratory, DRDQE Ivry/Seine, France
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16
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Wurtzer S, Marechal V, Mouchel JM, Maday Y, Teyssou R, Richard E, Almayrac JL, Moulin L. Evaluation of lockdown effect on SARS-CoV-2 dynamics through viral genome quantification in waste water, Greater Paris, France, 5 March to 23 April 2020. Euro Surveill 2020. [PMID: 33334397 DOI: 10.1101/2020.04.12.20062679] [Citation(s) in RCA: 119] [Impact Index Per Article: 29.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/11/2023] Open
Abstract
IntroductionSevere acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the etiological agent of coronavirus disease (COVID-19). People infected with SARS-CoV-2 may exhibit no or mild non-specific symptoms; thus, they may contribute to silent circulation of the virus among humans. Since SARS-CoV-2 RNA can be detected in stool samples, monitoring SARS-CoV-2 RNA in waste water (WW) has been proposed as a complementary tool to investigate virus circulation in human populations.AimTo test if the quantification of SARS-CoV-2 genomes in WW correlates with the number of symptomatic or non-symptomatic carriers.MethodWe performed a time-course quantitative analysis of SARS-CoV-2 by RT-qPCR in raw WW samples collected from several major WW treatment plants in Greater Paris. The study period was 5 March to 23 April 2020, including the lockdown period in France (from 17 March).ResultsWe showed that the increase of genome units in raw WW accurately followed the increase of human COVID-19 cases observed at the regional level. Of note, the viral genome could be detected before the epidemic grew massively (around 8 March). Equally importantly, a marked decrease in the quantities of genome units was observed concomitantly with the reduction in the number of new COVID-19 cases, 29 days following the lockdown.ConclusionThis work suggests that a quantitative monitoring of SARS-CoV-2 genomes in WW could generate important additional information for improved monitoring of SARS-CoV-2 circulation at local or regional levels and emphasises the role of WW-based epidemiology.
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Affiliation(s)
- S Wurtzer
- Eau de Paris, R&D Laboratory, DRDQE Ivry/Seine, France
| | - V Marechal
- Sorbonne Université, INSERM, Centre de Recherche Saint-Antoine2, Paris, France
- These authors are co-founders of the COVID-IA/PANDEMIA initiative
| | - J M Mouchel
- Sorbonne Université, CNRS, EPHE, UMR 7619 Metis, , e-LTER Zone Atelier Seine, Paris, France
| | - Y Maday
- These authors are co-founders of the COVID-IA/PANDEMIA initiative
- Sorbonne Université, CNRS, Université de Paris, Laboratoire Jacques-Louis Lions (LJLL), et Institut Universitaire de France, Paris, France
| | - R Teyssou
- Department of Virology, Institut de Recherche Biomédicale des Armées, Bretigny sur Orge, France
| | - E Richard
- Eau de Paris, R&D Laboratory, DRDQE Ivry/Seine, France
| | - J L Almayrac
- SIAAP, Service process-laboratoire SIAAP site Seine Amont, Valenton, France
| | - L Moulin
- Eau de Paris, R&D Laboratory, DRDQE Ivry/Seine, France
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Arias P, Strazzulla A, Depontfarcy A, Chakvetadze E, Flateau C, Gauzit R, Magere C, Le mener C, Richard E, Diamantis S. Évolution départementale de la consommation d’antibiotiques des médecins généralistes selon des indicateurs de prescriptions. Med Mal Infect 2020. [DOI: 10.1016/j.medmal.2020.06.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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van Bussel EF, Hoevenaar-Blom MP, Poortvliet RKE, Gussekloo J, van Dalen JW, van Gool WA, Richard E, Moll van Charante EP. Predictive value of traditional risk factors for cardiovascular disease in older people: A systematic review. Prev Med 2020; 132:105986. [PMID: 31958478 DOI: 10.1016/j.ypmed.2020.105986] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 01/08/2020] [Accepted: 01/12/2020] [Indexed: 01/21/2023]
Abstract
With increasing age, associations between traditional risk factors (TRFs) and cardiovascular disease (CVD) shift. It is unknown which mid-life risk factors remain relevant predictors for CVD in older people. We systematically searched PubMed and EMBASE on August 16th 2019 for studies assessing predictive ability of >1 of fourteen TRFs for fatal and non-fatal CVD, in the general population aged 60+. We included 12 studies, comprising 11 unique cohorts. TRF were evaluated in 2 to 11 cohorts, and retained in 0-70% of the cohorts: age (70%), diabetes (64%), male sex (57%), systolic blood pressure (SBP) (50%), smoking (36%), high-density lipoprotein cholesterol (HDL) (33%), left ventricular hypertrophy (LVH) (33%), total cholesterol (22%), diastolic blood pressure (20%), antihypertensive medication use (AHM) (20%), body mass index (BMI) (0%), hypertension (0%), low-density lipoprotein cholesterol (0%). In studies with low to moderate risk of bias, systolic blood pressure (SBP) (80%), smoking (80%) and HDL cholesterol (60%) were more often retained. Model performance was moderate with C-statistics ranging from 0.61 to 0.77. Compared to middle-aged adults, in people aged 60+ different risk factors predict CVD and current prediction models perform only moderate at best. According to most studies, age, sex and diabetes seem valuable predictors of CVD in old-age. SBP, HDL cholesterol and smoking may also have predictive value. Other blood pressure and cholesterol related variables, BMI, and LVH seem of very limited or no additional value. Without competing risk analysis, predictors are overestimated.
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Affiliation(s)
- E F van Bussel
- Department of General Practice, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, 1100DD Amsterdam, the Netherlands.
| | - M P Hoevenaar-Blom
- Department of Neurology, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, 1100 DD Amsterdam, the Netherlands; Department of Neurology, Donders Centre for Brain, Behaviour and Cognition, Radboud University Medical Center, Geert Grooteplein 10, 6525 GA Nijmegen, the Netherlands.
| | - R K E Poortvliet
- Department of Public Health and Primary Care, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, the Netherlands.
| | - J Gussekloo
- Department of Public Health and Primary Care, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, the Netherlands; Department of Gerontology and Geriatrics, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, Netherlands.
| | - J W van Dalen
- Department of Neurology, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, 1100 DD Amsterdam, the Netherlands; Department of Neurology, Donders Centre for Brain, Behaviour and Cognition, Radboud University Medical Center, Geert Grooteplein 10, 6525 GA Nijmegen, the Netherlands.
| | - W A van Gool
- Department of Neurology, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, 1100 DD Amsterdam, the Netherlands.
| | - E Richard
- Department of Neurology, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, 1100 DD Amsterdam, the Netherlands; Department of Neurology, Donders Centre for Brain, Behaviour and Cognition, Radboud University Medical Center, Geert Grooteplein 10, 6525 GA Nijmegen, the Netherlands.
| | - E P Moll van Charante
- Department of General Practice, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, 1100DD Amsterdam, the Netherlands.
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Fourgeaud M, Vidal T, Schmitt C, Blouin JM, Ged C, Richard E. Recurrent posterior reversible encephalopathy syndrome in a patient with acute intermittent porphyria. Rev Neurol (Paris) 2020; 176:118-120. [DOI: 10.1016/j.neurol.2019.02.003] [Citation(s) in RCA: 2] [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] [Received: 12/19/2018] [Revised: 02/07/2019] [Accepted: 02/11/2019] [Indexed: 11/25/2022]
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Tamayo M, Fulgencio-Covián A, Navarro-García JA, Val-Blasco A, Ruiz-Hurtado G, Gil-Fernández M, Martín-Nunes L, Lopez JA, Desviat LR, Delgado C, Richard E, Fernández-Velasco M. Intracellular calcium mishandling leads to cardiac dysfunction and ventricular arrhythmias in a mouse model of propionic acidemia. Biochim Biophys Acta Mol Basis Dis 2019; 1866:165586. [PMID: 31678161 DOI: 10.1016/j.bbadis.2019.165586] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 09/16/2019] [Accepted: 09/17/2019] [Indexed: 12/20/2022]
Abstract
Propionic acidemia (PA) is a rare metabolic disease associated with mutations in genes encoding the α and β subunits of the enzyme propionyl-CoA carboxylase. The accumulation of toxic metabolites results in mitochondrial dysfunction, increased reactive oxygen species production and oxidative damage, which have been associated with the disease pathophysiology. Clinical symptoms are heterogeneous and include cardiac complications, mainly cardiac dysfunction and arrhythmias, which are recognized as one of the major life-threatening manifestations in patients. We aimed to investigate the molecular mechanisms underlying the cardiac phenotype using a hypomorphic mouse model (Pcca-/-(A138T)) that recapitulates some biochemical and clinical characteristics of PA. We demonstrate that Pcca-/-(A138T) mice present with depressed cardiac function along with impaired cell contractility when compared to the wild-type mice. Cardiac dysfunction in Pcca-/-(A138T) mice was associated with lower systolic Ca2+ release ([Ca2+]i transients), impairment in the sarcoplasmic reticulum (SR) Ca2+ load and decreased Ca2+ re-uptake by SR-Ca2+ ATPase (SERCA2a). These functional changes correlated well with the depressed activity of SERCA2a, the elevated ROS levels and SERCA2a oxidation rate in cardiomyocytes isolated from Pcca-/-(A138T) mice. In addition, decreased SR-Ca2+ load in Pcca-/-(A138T) cardiomyocytes was associated with increased diastolic Ca2+ release. The increase in Ca2+ sparks, Ca2+ waves and spontaneous [Ca2+]i transients in Pcca-/-(A138T) cardiomyocytes could be responsible for the induction of ventricular arrhythmias detected in these mice. Overall, our results uncover the role of impaired Ca2+ handling in arrhythmias and cardiac dysfunction in PA, and identify new targets for the development of therapeutic approaches for this devastating metabolic disease.
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Affiliation(s)
- M Tamayo
- Biomedical Research Institute "Alberto Sols" CSIC-UAM, Madrid, Spain
| | - A Fulgencio-Covián
- Centro de Biología Molecular "Severo Ochoa" UAM-CSIC, Universidad Autónoma de Madrid, Spain
| | - J A Navarro-García
- Cardiorenal Translational Laboratory, Institute of Research i+12, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - A Val-Blasco
- Innate Immune Response Group, IdiPAZ, La Paz University Hospital, Madrid, Spain
| | - G Ruiz-Hurtado
- Cardiorenal Translational Laboratory, Institute of Research i+12, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - M Gil-Fernández
- Innate Immune Response Group, IdiPAZ, La Paz University Hospital, Madrid, Spain
| | - L Martín-Nunes
- Biomedical Research Institute "Alberto Sols" CSIC-UAM, Madrid, Spain
| | - J A Lopez
- Laboratorio de Proteomica Cardiovascular, Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
| | - L R Desviat
- Centro de Biología Molecular "Severo Ochoa" UAM-CSIC, Universidad Autónoma de Madrid, Spain
| | - C Delgado
- Biomedical Research Institute "Alberto Sols" CSIC-UAM, Madrid, Spain.
| | - E Richard
- Centro de Biología Molecular "Severo Ochoa" UAM-CSIC, Universidad Autónoma de Madrid, Spain.
| | - M Fernández-Velasco
- Innate Immune Response Group, IdiPAZ, La Paz University Hospital, Madrid, Spain.
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21
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Grellety T, Callens C, Richard E, Pulido M, Goncalves A, Gestraud P, MacGrogan G, Bonnefoi H, Cardinaud B. Abstract P2-06-04: Enhancing abiraterone acetate efficacy in androgen receptor-positive triple negative breast cancer: Chk1 as a potential target. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-p2-06-04] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Purpose: Our aim was to identify predictive factors of abiraterone acetate (AA) efficacy and putative new druggable targets in androgen receptor (AR)-positive triple-negative breast cancer (TNBC) treated in the UCBG 2012-1 trial.
Material and methods: We defined AA response as either complete or partial response, or stable disease at 6 months. Using Ampliseq, we sequenced 91 general and breast cancerassociated genes from the tumor DNA samples. We analyzed transcriptomes from the extracted RNA samples on a Nanostring platform and performed immunohistochemistry (IHC) on tumor samples using tissue microarrays. We assessed AA and CHK1 inhibitors (GDC-0575 and AZD7762) efficacies, either alone or in combination, on cell lines grown in vitro and in vivo.
Results: Classical IHC apocrine markers, including AR, FOXA1, GGT1 and GCDFP15, allowed identifying AA responders and non-responders. All responders have clear apocrine features. Transcriptome analysis revealed that 31 genes were differentially expressed in the two subgroups, 9 of them being linked to proliferation and DNA damage repair. One of the most significant differences was the overexpression in non-responders of CHEK1, a gene encoding Chk1, a protein kinase that can be blocked by specific inhibitors. In vitro, AA and Chk1 inhibitor combination showed additive or slightly synergistic effect on cell viability, cell cycle, apoptosis and accumulation of DNA damages. In vivo, orthotopic xenograft experiments confirmed the efficacy of this combination therapy.
Conclusions: This study suggests that apocrine features can be helpful in the identification of AA-responders. We identified Chk1 as a putative drug target in AR-positive TNBCs.
Citation Format: Grellety T, Callens C, Richard E, Pulido M, Goncalves A, Gestraud P, MacGrogan G, Bonnefoi H, Cardinaud B. Enhancing abiraterone acetate efficacy in androgen receptor-positive triple negative breast cancer: Chk1 as a potential target [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P2-06-04.
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Affiliation(s)
- T Grellety
- INSERM UNIT U1218, Institut Bergonié, Bordeaux, France; Institut Bergonié, Comprehensive Cancer Centre, Bordeaux, France; Pharmacogenomic Unit, Genetics Laboratory, Institut Curie, Paris, France; Clinical and Epidemiological Research Unit, Institut Bergonié, INSERM CIC1401, Bordeaux, France; Aix-Marseille Univ, CNRS, INSERM, Institut Paoli-Calmettes, Marseille, France; Institut Curie, PSL Research University, Mines Paris Tech, Bioinformatics and Computational Systems Biology of Cancer, INSERM U900, Paris, France; Bordeaux Institut National Polytechnique, Bordeaux, France
| | - C Callens
- INSERM UNIT U1218, Institut Bergonié, Bordeaux, France; Institut Bergonié, Comprehensive Cancer Centre, Bordeaux, France; Pharmacogenomic Unit, Genetics Laboratory, Institut Curie, Paris, France; Clinical and Epidemiological Research Unit, Institut Bergonié, INSERM CIC1401, Bordeaux, France; Aix-Marseille Univ, CNRS, INSERM, Institut Paoli-Calmettes, Marseille, France; Institut Curie, PSL Research University, Mines Paris Tech, Bioinformatics and Computational Systems Biology of Cancer, INSERM U900, Paris, France; Bordeaux Institut National Polytechnique, Bordeaux, France
| | - E Richard
- INSERM UNIT U1218, Institut Bergonié, Bordeaux, France; Institut Bergonié, Comprehensive Cancer Centre, Bordeaux, France; Pharmacogenomic Unit, Genetics Laboratory, Institut Curie, Paris, France; Clinical and Epidemiological Research Unit, Institut Bergonié, INSERM CIC1401, Bordeaux, France; Aix-Marseille Univ, CNRS, INSERM, Institut Paoli-Calmettes, Marseille, France; Institut Curie, PSL Research University, Mines Paris Tech, Bioinformatics and Computational Systems Biology of Cancer, INSERM U900, Paris, France; Bordeaux Institut National Polytechnique, Bordeaux, France
| | - M Pulido
- INSERM UNIT U1218, Institut Bergonié, Bordeaux, France; Institut Bergonié, Comprehensive Cancer Centre, Bordeaux, France; Pharmacogenomic Unit, Genetics Laboratory, Institut Curie, Paris, France; Clinical and Epidemiological Research Unit, Institut Bergonié, INSERM CIC1401, Bordeaux, France; Aix-Marseille Univ, CNRS, INSERM, Institut Paoli-Calmettes, Marseille, France; Institut Curie, PSL Research University, Mines Paris Tech, Bioinformatics and Computational Systems Biology of Cancer, INSERM U900, Paris, France; Bordeaux Institut National Polytechnique, Bordeaux, France
| | - A Goncalves
- INSERM UNIT U1218, Institut Bergonié, Bordeaux, France; Institut Bergonié, Comprehensive Cancer Centre, Bordeaux, France; Pharmacogenomic Unit, Genetics Laboratory, Institut Curie, Paris, France; Clinical and Epidemiological Research Unit, Institut Bergonié, INSERM CIC1401, Bordeaux, France; Aix-Marseille Univ, CNRS, INSERM, Institut Paoli-Calmettes, Marseille, France; Institut Curie, PSL Research University, Mines Paris Tech, Bioinformatics and Computational Systems Biology of Cancer, INSERM U900, Paris, France; Bordeaux Institut National Polytechnique, Bordeaux, France
| | - P Gestraud
- INSERM UNIT U1218, Institut Bergonié, Bordeaux, France; Institut Bergonié, Comprehensive Cancer Centre, Bordeaux, France; Pharmacogenomic Unit, Genetics Laboratory, Institut Curie, Paris, France; Clinical and Epidemiological Research Unit, Institut Bergonié, INSERM CIC1401, Bordeaux, France; Aix-Marseille Univ, CNRS, INSERM, Institut Paoli-Calmettes, Marseille, France; Institut Curie, PSL Research University, Mines Paris Tech, Bioinformatics and Computational Systems Biology of Cancer, INSERM U900, Paris, France; Bordeaux Institut National Polytechnique, Bordeaux, France
| | - G MacGrogan
- INSERM UNIT U1218, Institut Bergonié, Bordeaux, France; Institut Bergonié, Comprehensive Cancer Centre, Bordeaux, France; Pharmacogenomic Unit, Genetics Laboratory, Institut Curie, Paris, France; Clinical and Epidemiological Research Unit, Institut Bergonié, INSERM CIC1401, Bordeaux, France; Aix-Marseille Univ, CNRS, INSERM, Institut Paoli-Calmettes, Marseille, France; Institut Curie, PSL Research University, Mines Paris Tech, Bioinformatics and Computational Systems Biology of Cancer, INSERM U900, Paris, France; Bordeaux Institut National Polytechnique, Bordeaux, France
| | - H Bonnefoi
- INSERM UNIT U1218, Institut Bergonié, Bordeaux, France; Institut Bergonié, Comprehensive Cancer Centre, Bordeaux, France; Pharmacogenomic Unit, Genetics Laboratory, Institut Curie, Paris, France; Clinical and Epidemiological Research Unit, Institut Bergonié, INSERM CIC1401, Bordeaux, France; Aix-Marseille Univ, CNRS, INSERM, Institut Paoli-Calmettes, Marseille, France; Institut Curie, PSL Research University, Mines Paris Tech, Bioinformatics and Computational Systems Biology of Cancer, INSERM U900, Paris, France; Bordeaux Institut National Polytechnique, Bordeaux, France
| | - B Cardinaud
- INSERM UNIT U1218, Institut Bergonié, Bordeaux, France; Institut Bergonié, Comprehensive Cancer Centre, Bordeaux, France; Pharmacogenomic Unit, Genetics Laboratory, Institut Curie, Paris, France; Clinical and Epidemiological Research Unit, Institut Bergonié, INSERM CIC1401, Bordeaux, France; Aix-Marseille Univ, CNRS, INSERM, Institut Paoli-Calmettes, Marseille, France; Institut Curie, PSL Research University, Mines Paris Tech, Bioinformatics and Computational Systems Biology of Cancer, INSERM U900, Paris, France; Bordeaux Institut National Polytechnique, Bordeaux, France
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Milne R, Bunnik E, Tromp K, Bemelmans S, Badger S, Gove D, Maman M, Schermer M, Truyen L, Brayne C, Richard E. Ethical Issues in the Development of Readiness Cohorts in Alzheimer's Disease Research. J Prev Alzheimers Dis 2018; 4:125-131. [PMID: 29186282 DOI: 10.14283/jpad.2017.5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
There is growing interest in the development of novel approaches to secondary prevention trials in Alzheimer's disease to facilitate screening and recruitment of research participants and to reduce the time and costs associated with clinical trials. Several international research collaborations are setting up research infrastructures that link existing research cohorts, studies or patient registries to establish 'trial-ready' or 'readiness' cohorts. From these cohorts, individuals are recruited into clinical trial platforms. In setting up such research infrastructures, researchers must make ethically challenging design decisions in at least three areas: re-contacting participants in existing research studies, obtaining informed consent for participation in a readiness cohort, and disclosure of Alzheimer's disease-related biomarkers. These ethical considerations have been examined by a dedicated workgroup within the European Prevention of Alzheimer's Dementia (EPAD) project, a trans-European longitudinal cohort and adaptive proof-of-concept clinical trial platform. This paper offers recommendations for the ethical management of re-contact, informed consent and risk disclosure which may be of value to other research collaborations in the process of developing readiness cohorts for prevention trials in Alzheimer's disease and other disease areas.
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Affiliation(s)
- R Milne
- Richard Milne, PhD, Institute of Public Health, University of Cambridge, 2 Wort's Causeway Cambridge, UK, CB1 8RN, , 0044 (0)1223 761912
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Beauvarlet J, Sadoun PB, Labrunie G, Das R, Richard E, Rousseau B, Darbo E, Croce S, Mergny J, Djavaheri-Mergny M. PO-446 Anti-tumour efficiency of 20A, a novel G-quadruplex ligand, in in vitro and in vivocancer models: ATM and autophagy interplay. ESMO Open 2018. [DOI: 10.1136/esmoopen-2018-eacr25.469] [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: 11/04/2022] Open
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Richard E, Brasil S, Briso-Montiano A, Alonso-Barroso E, Gallardo ME, Merinero B, Ugarte M, Desviat LR, Pérez B. Generation and characterization of two human iPSC lines from patients with methylmalonic acidemia cblB type. Stem Cell Res 2018; 29:143-147. [PMID: 29660608 DOI: 10.1016/j.scr.2018.03.021] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 03/20/2018] [Accepted: 03/29/2018] [Indexed: 11/18/2022] Open
Abstract
Two human induced pluripotent stem cell (iPSC) lines were generated from fibroblasts of two siblings with methylmalonic acidemia cblB type carrying mutations in the MMAB gene: c.287T➔C (p.Ile96Thr) and a splicing loss-of-function variant c.584G➔A affecting the last nucleotide of exon 7 in MMAB (p.Ser174Cysfs*23). Reprogramming factors OCT3/4, SOX2, KLF4 and c-MYC were delivered using a non-integrative method based on the Sendai virus. Once established, iPSCs have shown full pluripotency, differentiation capacity and genetic stability.
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Affiliation(s)
- E Richard
- Centro de Biología Molecular "Severo Ochoa" UAM-CSIC, Universidad Autónoma de Madrid, Madrid, Spain; Centro de Diagnóstico de Enfermedades Moleculares (CEDEM), Universidad Autónoma de Madrid, Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), ISCIII, Madrid, Spain; Instituto de Investigación Sanitaria Hospital La Paz (IdiPaz), ISCIII, Madrid, Spain
| | - S Brasil
- Centro de Biología Molecular "Severo Ochoa" UAM-CSIC, Universidad Autónoma de Madrid, Madrid, Spain; Centro de Diagnóstico de Enfermedades Moleculares (CEDEM), Universidad Autónoma de Madrid, Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), ISCIII, Madrid, Spain; Instituto de Investigación Sanitaria Hospital La Paz (IdiPaz), ISCIII, Madrid, Spain
| | - A Briso-Montiano
- Centro de Biología Molecular "Severo Ochoa" UAM-CSIC, Universidad Autónoma de Madrid, Madrid, Spain; Centro de Diagnóstico de Enfermedades Moleculares (CEDEM), Universidad Autónoma de Madrid, Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), ISCIII, Madrid, Spain; Instituto de Investigación Sanitaria Hospital La Paz (IdiPaz), ISCIII, Madrid, Spain
| | - E Alonso-Barroso
- Centro de Biología Molecular "Severo Ochoa" UAM-CSIC, Universidad Autónoma de Madrid, Madrid, Spain; Centro de Diagnóstico de Enfermedades Moleculares (CEDEM), Universidad Autónoma de Madrid, Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), ISCIII, Madrid, Spain; Instituto de Investigación Sanitaria Hospital La Paz (IdiPaz), ISCIII, Madrid, Spain
| | - M E Gallardo
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), ISCIII, Madrid, Spain; Departamento de Bioquímica, Instituto de Investigaciones Biomédicas "Alberto Sols", Facultad de Medicina UAM-CSIC, Madrid, Spain; Instituto de Investigación Hospital 12 de Octubre ("i+12"), Madrid, Spain
| | - B Merinero
- Centro de Diagnóstico de Enfermedades Moleculares (CEDEM), Universidad Autónoma de Madrid, Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), ISCIII, Madrid, Spain; Instituto de Investigación Sanitaria Hospital La Paz (IdiPaz), ISCIII, Madrid, Spain
| | - M Ugarte
- Centro de Diagnóstico de Enfermedades Moleculares (CEDEM), Universidad Autónoma de Madrid, Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), ISCIII, Madrid, Spain; Instituto de Investigación Sanitaria Hospital La Paz (IdiPaz), ISCIII, Madrid, Spain
| | - L R Desviat
- Centro de Biología Molecular "Severo Ochoa" UAM-CSIC, Universidad Autónoma de Madrid, Madrid, Spain; Centro de Diagnóstico de Enfermedades Moleculares (CEDEM), Universidad Autónoma de Madrid, Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), ISCIII, Madrid, Spain; Instituto de Investigación Sanitaria Hospital La Paz (IdiPaz), ISCIII, Madrid, Spain
| | - B Pérez
- Centro de Biología Molecular "Severo Ochoa" UAM-CSIC, Universidad Autónoma de Madrid, Madrid, Spain; Centro de Diagnóstico de Enfermedades Moleculares (CEDEM), Universidad Autónoma de Madrid, Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), ISCIII, Madrid, Spain; Instituto de Investigación Sanitaria Hospital La Paz (IdiPaz), ISCIII, Madrid, Spain.
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Richard E, Peng C, Mehta E, Yao C, Knodt A, Hariri A, Wallace G. B-23Gender Modulates the Association Between Autistic Traits and Cortical Structure. Arch Clin Neuropsychol 2017. [DOI: 10.1093/arclin/acx076.108] [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: 11/13/2022] Open
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Richard E, Kritz-Silverstein D, Laughlin G, Fung T, Barrett-Connor E, McEvoy L. ALCOHOL INTAKE AND COGNITIVELY HEALTHY LONGEVITY: THE RANCHO BERNARDO STUDY. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.1686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- E. Richard
- Radiology, University of California, San Diego, La Jolla, California,
| | | | - G.A. Laughlin
- Radiology, University of California, San Diego, La Jolla, California,
| | - T. Fung
- Harvard University, Boston, Massachusetts
| | - E. Barrett-Connor
- Radiology, University of California, San Diego, La Jolla, California,
| | - L.K. McEvoy
- Radiology, University of California, San Diego, La Jolla, California,
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Vayne-Bossert P, Richard E, Good P, Sullivan K, Hardy J. Integration of oncology and palliative care: setting a benchmark. Support Care Cancer 2017; 25:3253-3259. [DOI: 10.1007/s00520-017-3736-2] [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] [Received: 02/19/2017] [Accepted: 04/24/2017] [Indexed: 11/27/2022]
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Bonnefoi H, Richard E, Grellety T, Velasco V, MacGrogan G, Iggo R. Abstract P4-06-02: The mammary ducts create a favourable microenvironment for xenografting of luminal and molecular apocrine breast tumours. Cancer Res 2017. [DOI: 10.1158/1538-7445.sabcs16-p4-06-02] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
This abstract was not presented at the symposium.
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Affiliation(s)
- H Bonnefoi
- Bergonie Cancer Institute, INSERM U1218, University of Bordeaux, Bordeaux, France
| | - E Richard
- Bergonie Cancer Institute, INSERM U1218, University of Bordeaux, Bordeaux, France
| | - T Grellety
- Bergonie Cancer Institute, INSERM U1218, University of Bordeaux, Bordeaux, France
| | - V Velasco
- Bergonie Cancer Institute, INSERM U1218, University of Bordeaux, Bordeaux, France
| | - G MacGrogan
- Bergonie Cancer Institute, INSERM U1218, University of Bordeaux, Bordeaux, France
| | - R Iggo
- Bergonie Cancer Institute, INSERM U1218, University of Bordeaux, Bordeaux, France
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Moll van Charante EP, Richard E, Eurelings LS, van Dalen JW, Ligthart SA, van Bussel EF, Hoevenaar-Blom MP, Vermeulen M, van Gool WA. [Is dementia preventable through intensive vascular care? The preDIVA trial]. Ned Tijdschr Geneeskd 2017; 161:D1184. [PMID: 28488553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
OBJECTIVE To assess whether intensive vascular care in GP practices can prevent dementia in a population of community-dwelling older people. METHOD This pragmatic cluster-randomised open-label study (ISRCTN29711771) was conducted in persons aged 70-78 years who were registered with Dutch GP practices. The only exclusion criteria were a diagnosis of dementia and limited life expectancy. Practices were randomly assigned to an intervention arm or a control arm. Participants in the interventional arm underwent a cardiovascular check-up every 4 months for six years by a practice nurse. Primary outcomes were cumulative incidence of dementia and functional limitations. Main secondary outcomes were the incidence of cardiovascular disease and mortality. RESULTS Between June 2006 and March 2009, 116 GP practices (3526 participants) were recruited and randomly assigned: 63 (1890 participants) to the intervention group and 53 (1636 participants) to the control group. Primary outcome data were obtained for 3454 (98%) participants; median follow-up was 6.7 years. In this period, dementia was diagnosed in 121/1853 (6.5%) participants in the intervention group and in 112/1601 (7.0%) participants in the control group. This difference was not significant (hazard ratio 0.92, 95% CI 0.71-1.19). No differences were found with regard to functional decline, incident cardiovascular disease and mortality. CONCLUSION Long-term intensive vascular care for community-dwelling elderly patients, provided in a primary care setting, does not result in a reduced incidence of dementia, functional limitations or mortality. There is, however, possibly an effect in elderly patients with untreated or sub-optimally treated hypertension; this warrants further research.
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Affiliation(s)
- E P Moll van Charante
- * Dit onderzoek werd eerder gepubliceerd in de Lancet (2016;388:797-805) met als titel 'Effectiveness of a 6-year multidomain vascular care intervention to prevent dementia (preDIVA): a cluster-randomised controlled trial.' Afgedrukt met toestemming
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Richard E, Moll van Charante EP. [Diagnostics in memory loss: for whom, what and when?]. Ned Tijdschr Geneeskd 2017; 161:D2120. [PMID: 28936941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
With the advancement of diagnostic tests, the call for an ever-earlier diagnosis of people with memory problems is becoming louder. Diagnostic tests for people with mild cognitive impairment are in fact prognostic tests, complicating the application and interpretation of test results. There is currently insufficient evidence on the incremental diagnostic (or prognostic) value of specific diagnostic tests including MRI, CSF and PET scanning in representative memory clinic populations. Labelling large groups of people who may never develop dementia as having prodromal Alzheimer's disease may be more harmful than a postponed nosological diagnosis in those with mild cognitive impairment. The current Dutch practice guideline on dementia, with a reticent attitude towards the use of diagnostic tests in patients with cognitive impairment, is appropriate and scientifically sound.
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Affiliation(s)
- E Richard
- Radboudumc, afd. Neurologie, Donders institute for Brain, Behaviour and Cognition, Nijmegen
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31
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Pronost S, Hue E, Fortier C, Foursin M, Fortier G, Desbrosse F, Rey FA, Pitel PH, Richard E, Saunier B. Prevalence of Equine Hepacivirus Infections in France and Evidence for Two Viral Subtypes Circulating Worldwide. Transbound Emerg Dis 2016; 64:1884-1897. [PMID: 27882682 DOI: 10.1111/tbed.12587] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2016] [Indexed: 12/20/2022]
Abstract
Like hepatitis C virus (HCV) in humans, the newly identified equine hepacivirus (NPHV) displays a predominating liver tropism that may evolve into chronic infections. The genomes of the two viruses share several organizational and functional features and are phylogenetically closest amongst the Hepacivirus genus. A limited amount of data is available regarding the spread of hepacivirus infections in horses. In this study, we asked whether in a more representative sample the prevalence and distribution of NPHV infections in France would resemble that reported so far in other countries. A total of 1033 horses sera from stud farms throughout France were analysed by qRT-PCR to determine the prevalence of ongoing NPHV infections and viral loads; in positive samples, partial sequences of NPHV's genome (5'UTR, NS3 and NS5B genes) were determined. Serum concentrations of biliary acids, glutamate dehydrogenase (GLDH) and L-gamma-glutamyl transferase (γ-GT) were measured for most horses. We detected NPHV infections in 6.2% of the horses, a prevalence that reached 8.3% in thoroughbreds and was significantly higher than in other breeds. The presence of circulating virus was neither significantly associated with biological disturbances nor with clinical hepatic impairment. Our phylogenetic analysis was based on both neighbour-joining and maximum-likelihood approaches. Its result shows that, like almost everywhere else in the world so far, two major groups of NPHV strains infect French domestic horses. Based on genetic distances, we propose a classification into two separate NPHV subtypes. Viral loads in the serum of horses infected by the main subtype were, in average, four times higher than in those infected by the second subtype. We hypothesize that amino acid substitutions in the palm domain of NS5B between NPHV subtypes could underlie viral phenotypes that explain this result.
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Affiliation(s)
- S Pronost
- Unité de Recherche Risques Microbiens (U2RM), EA 4655, Université de Caen Basse-Normandie, Caen, France.,LABÉO Frank Duncombe, Caen, France.,Hippolia Fondation, Caen, France
| | - E Hue
- Unité de Recherche Risques Microbiens (U2RM), EA 4655, Université de Caen Basse-Normandie, Caen, France.,LABÉO Frank Duncombe, Caen, France.,Hippolia Fondation, Caen, France
| | - C Fortier
- LABÉO Frank Duncombe, Caen, France.,Hippolia Fondation, Caen, France
| | - M Foursin
- Clinique Equine de la Boisrie, Chailloué, France
| | - G Fortier
- Unité de Recherche Risques Microbiens (U2RM), EA 4655, Université de Caen Basse-Normandie, Caen, France.,LABÉO Frank Duncombe, Caen, France.,Hippolia Fondation, Caen, France
| | - F Desbrosse
- Clinique Equine Desbrosse, Saint Lambert, France
| | - F A Rey
- Structural Virology Unit - CNRS UMR 3569, Institut Pasteur, Paris, France
| | - P-H Pitel
- LABÉO Frank Duncombe, Caen, France.,Hippolia Fondation, Caen, France
| | - E Richard
- LABÉO Frank Duncombe, Caen, France.,Hippolia Fondation, Caen, France
| | - B Saunier
- Structural Virology Unit - CNRS UMR 3569, Institut Pasteur, Paris, France
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32
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Bemelmans SASA, Tromp K, Bunnik EM, Milne RJ, Badger S, Brayne C, Schermer MH, Richard E. Psychological, behavioral and social effects of disclosing Alzheimer's disease biomarkers to research participants: a systematic review. Alzheimers Res Ther 2016; 8:46. [PMID: 27832826 PMCID: PMC5103503 DOI: 10.1186/s13195-016-0212-z] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/29/2016] [Accepted: 10/04/2016] [Indexed: 12/21/2022]
Abstract
BACKGROUND Current Alzheimer's disease (AD) research initiatives focus on cognitively healthy individuals with biomarkers that are associated with the development of AD. It is unclear whether biomarker results should be returned to research participants and what the psychological, behavioral and social effects of disclosure are. This systematic review therefore examines the psychological, behavioral and social effects of disclosing genetic and nongenetic AD-related biomarkers to cognitively healthy research participants. METHODS We performed a systematic literature search in eight scientific databases. Three independent reviewers screened the identified records and selected relevant articles. Results extracted from the included articles were aggregated and presented per effect group. RESULTS Fourteen studies met the inclusion criteria and were included in the data synthesis. None of the identified studies examined the effects of disclosing nongenetic biomarkers. All studies but one concerned the disclosure of APOE genotype and were conducted in the USA. Study populations consisted largely of cognitively healthy first-degree relatives of AD patients. In this group, disclosure of an increased risk was not associated with anxiety, depression or changes in perceived risk in relation to family history. Disclosure of an increased risk did lead to an increase in specific test-related distress levels, health-related behavior changes and long-term care insurance uptake and possibly diminished memory functioning. CONCLUSION In cognitively healthy research participants with a first-degree relative with AD, disclosure of APOE ε4-positivity does not lead to elevated anxiety and depression levels, but does increase test-related distress and results in behavior changes concerning insurance and health. We did not find studies reporting the effects of disclosing nongenetic biomarkers and only one study included people without a family history of AD. Empirical studies on the effects of disclosing nongenetic biomarkers and of disclosure to persons without a family history of AD are urgently needed. TRIAL REGISTRATION PROSPERO international prospective register for systematic reviews CRD42016035388 . Registered 19 February 2016.
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Affiliation(s)
- S A S A Bemelmans
- Department of Neurology, Radboudumc, Geert Grooteplein-Zuid 10, 6525 GA, Nijmegen, The Netherlands
| | - K Tromp
- Department of Medical Ethics and Philosophy of Medicine, Erasmus MC, Wytemaweg 80, 3015 CN, Rotterdam, The Netherlands
| | - E M Bunnik
- Department of Medical Ethics and Philosophy of Medicine, Erasmus MC, Wytemaweg 80, 3015 CN, Rotterdam, The Netherlands
| | - R J Milne
- Cambridge Institute of Public Health, University of Cambridge, Forvie Site, Robinson Way, Cambridge, CB2 0SR, UK
| | - S Badger
- Cambridge Institute of Public Health, University of Cambridge, Forvie Site, Robinson Way, Cambridge, CB2 0SR, UK
| | - C Brayne
- Cambridge Institute of Public Health, University of Cambridge, Forvie Site, Robinson Way, Cambridge, CB2 0SR, UK
| | - M H Schermer
- Department of Medical Ethics and Philosophy of Medicine, Erasmus MC, Wytemaweg 80, 3015 CN, Rotterdam, The Netherlands
| | - E Richard
- Department of Neurology, Radboudumc, Geert Grooteplein-Zuid 10, 6525 GA, Nijmegen, The Netherlands.
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Richard E, Okumura K, Abe K, Haga Y, Hayato Y, Ikeda M, Iyogi K, Kameda J, Kishimoto Y, Miura M, Moriyama S, Nakahata M, Nakajima T, Nakano Y, Nakayama S, Orii A, Sekiya H, Shiozawa M, Takeda A, Tanaka H, Tomura T, Wendell R, Akutsu R, Irvine T, Kajita T, Kaneyuki K, Nishimura Y, Labarga L, Fernandez P, Gustafson J, Kachulis C, Kearns E, Raaf J, Stone J, Sulak L, Berkman S, Nantais C, Tanaka H, Tobayama S, Goldhaber M, Kropp W, Mine S, Weatherly P, Smy M, Sobel H, Takhistov V, Ganezer K, Hartfiel B, Hill J, Hong N, Kim J, Lim I, Park R, Himmel A, Li Z, O’Sullivan E, Scholberg K, Walter C, Wongjirad T, Ishizuka T, Tasaka S, Jang J, Learned J, Matsuno S, Smith S, Friend M, Hasegawa T, Ishida T, Ishii T, Kobayashi T, Nakadaira T, Nakamura K, Oyama Y, Sakashita K, Sekiguchi T, Tsukamoto T, Suzuki A, Takeuchi Y, Yano T, Cao S, Hiraki T, Hirota S, Huang K, Kikawa T, Minamino A, Nakaya T, Suzuki K, Fukuda Y, Choi K, Itow Y, Suzuki T, Mijakowski P, Frankiewicz K, Hignight J, Imber J, Jung C, Li X, Palomino J, Wilking M, Yanagisawa C, Fukuda D, Ishino H, Kayano T, Kibayashi A, Koshio Y, Mori T, Sakuda M, Xu C, Kuno Y, Tacik R, Kim S, Okazawa H, Choi Y, Nishijima K, Koshiba M, Totsuka Y, Suda Y, Yokoyama M, Bronner C, Hartz M, Martens K, Marti L, Suzuki Y, Vagins M, Martin J, Konaka A, Chen S, Zhang Y, Wilkes R. Measurements of the atmospheric neutrino flux by Super-Kamiokande: Energy spectra, geomagnetic effects, and solar modulation. Int J Clin Exp Med 2016. [DOI: 10.1103/physrevd.94.052001] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Gallego-Villar L, Rivera-Barahona A, Cuevas-Martín C, Guenzel A, Pérez B, Barry MA, Murphy MP, Logan A, Gonzalez-Quintana A, Martín MA, Medina S, Gil-Izquierdo A, Cuezva JM, Richard E, Desviat LR. In vivo evidence of mitochondrial dysfunction and altered redox homeostasis in a genetic mouse model of propionic acidemia: Implications for the pathophysiology of this disorder. Free Radic Biol Med 2016; 96:1-12. [PMID: 27083476 DOI: 10.1016/j.freeradbiomed.2016.04.007] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Revised: 04/01/2016] [Accepted: 04/02/2016] [Indexed: 12/16/2022]
Abstract
Accumulation of toxic metabolites has been described to inhibit mitochondrial enzymes, thereby inducing oxidative stress in propionic acidemia (PA), an autosomal recessive metabolic disorder caused by the deficiency of mitochondrial propionyl-CoA carboxylase. PA patients exhibit neurological deficits and multiorgan complications including cardiomyopathy. To investigate the role of mitochondrial dysfunction in the development of these alterations we have used a hypomorphic mouse model of PA that mimics the biochemical and clinical hallmarks of the disease. We have studied the tissue-specific bioenergetic signature by Reverse Phase Protein Microarrays and analysed OXPHOS complex activities, mtDNA copy number, oxidative damage, superoxide anion and hydrogen peroxide levels. The results show decreased levels and/or activity of several OXPHOS complexes in different tissues of PA mice. An increase in mitochondrial mass and OXPHOS complexes was observed in brain, possibly reflecting a compensatory mechanism including metabolic reprogramming. mtDNA depletion was present in most tissues analysed. Antioxidant enzymes were also found altered. Lipid peroxidation was present along with an increase in hydrogen peroxide and superoxide anion production. These data support the hypothesis that oxidative damage may contribute to the pathophysiology of PA, opening new avenues in the identification of therapeutic targets and paving the way for in vivo evaluation of compounds targeting mitochondrial biogenesis or reactive oxygen species production.
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Affiliation(s)
- L Gallego-Villar
- Centro de Biología Molecular Severo Ochoa UAM-CSIC, Universidad Autónoma, Madrid, Spain; CIBER de Enfermedades Raras (CIBERER), ISCIII, Madrid, Spain; Centro de Diagnóstico de Enfermedades Moleculares (CEDEM), Madrid, Spain
| | - A Rivera-Barahona
- Centro de Biología Molecular Severo Ochoa UAM-CSIC, Universidad Autónoma, Madrid, Spain; CIBER de Enfermedades Raras (CIBERER), ISCIII, Madrid, Spain; Centro de Diagnóstico de Enfermedades Moleculares (CEDEM), Madrid, Spain
| | - C Cuevas-Martín
- Centro de Biología Molecular Severo Ochoa UAM-CSIC, Universidad Autónoma, Madrid, Spain; CIBER de Enfermedades Raras (CIBERER), ISCIII, Madrid, Spain
| | | | - B Pérez
- Centro de Biología Molecular Severo Ochoa UAM-CSIC, Universidad Autónoma, Madrid, Spain; CIBER de Enfermedades Raras (CIBERER), ISCIII, Madrid, Spain; Centro de Diagnóstico de Enfermedades Moleculares (CEDEM), Madrid, Spain
| | | | - M P Murphy
- Medical Research Council, Mitochondrial Biology Unit, Cambridge, UK
| | - A Logan
- Medical Research Council, Mitochondrial Biology Unit, Cambridge, UK
| | - A Gonzalez-Quintana
- CIBER de Enfermedades Raras (CIBERER), ISCIII, Madrid, Spain; Instituto de Investigación Hospital 12 de Octubre (i+12), Madrid, Spain
| | - M A Martín
- CIBER de Enfermedades Raras (CIBERER), ISCIII, Madrid, Spain; Instituto de Investigación Hospital 12 de Octubre (i+12), Madrid, Spain
| | - S Medina
- Department of Food Science and Technology, CEBAS-CSIC, Campus de Espinardo 25, 30100 Espinardo, Murcia, Spain
| | - A Gil-Izquierdo
- Department of Food Science and Technology, CEBAS-CSIC, Campus de Espinardo 25, 30100 Espinardo, Murcia, Spain
| | - J M Cuezva
- Centro de Biología Molecular Severo Ochoa UAM-CSIC, Universidad Autónoma, Madrid, Spain; CIBER de Enfermedades Raras (CIBERER), ISCIII, Madrid, Spain
| | - E Richard
- Centro de Biología Molecular Severo Ochoa UAM-CSIC, Universidad Autónoma, Madrid, Spain; CIBER de Enfermedades Raras (CIBERER), ISCIII, Madrid, Spain; Centro de Diagnóstico de Enfermedades Moleculares (CEDEM), Madrid, Spain
| | - L R Desviat
- Centro de Biología Molecular Severo Ochoa UAM-CSIC, Universidad Autónoma, Madrid, Spain; CIBER de Enfermedades Raras (CIBERER), ISCIII, Madrid, Spain; Centro de Diagnóstico de Enfermedades Moleculares (CEDEM), Madrid, Spain.
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van Dalen JW, Mutsaerts HJMM, Nederveen AJ, Vrenken H, Steenwijk MD, Caan MWA, Majoie CBLM, van Gool WA, Richard E. White Matter Hyperintensity Volume and Cerebral Perfusion in Older Individuals with Hypertension Using Arterial Spin-Labeling. AJNR Am J Neuroradiol 2016; 37:1824-1830. [PMID: 27282862 DOI: 10.3174/ajnr.a4828] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Accepted: 03/31/2016] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE White matter hyperintensities of presumed vascular origin in elderly patients with hypertension may be part of a general cerebral perfusion deficit, involving not only the white matter hyperintensities but also the surrounding normal-appearing white matter and gray matter. We aimed to study the relation between white matter hyperintensity volume and CBF and assess whether white matter hyperintensities are related to a general perfusion deficit. MATERIALS AND METHODS In 185 participants of the Prevention of Dementia by Intensive Vascular Care trial between 72 and 80 years of age with systolic hypertension, white matter hyperintensity volume and CBF were derived from 3D FLAIR and arterial spin-labeling MR imaging, respectively. We compared white matter hyperintensity CBF, normal-appearing white matter CBF, and GM CBF across quartiles of white matter hyperintensity volume and assessed the continuous relation between these CBF estimates and white matter hyperintensity volume by using linear regression. RESULTS Mean white matter hyperintensity CBF was markedly lower in higher quartiles of white matter hyperintensity volume, and white matter hyperintensity volume and white matter hyperintensity CBF were negatively related (standardized β = -0.248, P = .001) in linear regression. We found no difference in normal-appearing white matter or GM CBF across quartiles of white matter hyperintensity volume or any relation between white matter hyperintensity volume and normal-appearing white matter CBF (standardized β = -0.065, P = .643) or GM CBF (standardized β = -0.035, P = .382) in linear regression. CONCLUSIONS Higher white matter hyperintensity volume in elderly individuals with hypertension was associated with lower perfusion within white matter hyperintensities, but not with lower perfusion in the surrounding normal-appearing white matter or GM. These findings suggest that white matter hyperintensities in elderly individuals with hypertension relate to local microvascular alterations rather than a general cerebral perfusion deficit.
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Affiliation(s)
- J W van Dalen
- From the Departments of Neurology (J.W.v.D., W.A.v.G., E.R.)
| | - H J M M Mutsaerts
- Radiology (H.J.M.M.M., A.J.N., M.W.A.C., C.B.L.M.M.), Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands
| | - A J Nederveen
- Radiology (H.J.M.M.M., A.J.N., M.W.A.C., C.B.L.M.M.), Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands
| | - H Vrenken
- Departments of Radiology and Nuclear Medicine (H.V., M.D.S.).,Physics and Medical Technology (H.V.), Neuroscience Campus Amsterdam, VU University Medical Center Amsterdam, Amsterdam, the Netherlands
| | - M D Steenwijk
- Departments of Radiology and Nuclear Medicine (H.V., M.D.S.)
| | - M W A Caan
- Radiology (H.J.M.M.M., A.J.N., M.W.A.C., C.B.L.M.M.), Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands
| | - C B L M Majoie
- Radiology (H.J.M.M.M., A.J.N., M.W.A.C., C.B.L.M.M.), Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands
| | - W A van Gool
- From the Departments of Neurology (J.W.v.D., W.A.v.G., E.R.)
| | - E Richard
- From the Departments of Neurology (J.W.v.D., W.A.v.G., E.R.).,Department of Neurology (E.R.), Radboud University Medical Center, Nijmegen, the Netherlands
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Hue E, Richard E, Fortier C, Fortier G, Paillot R, Raue R, Pronost S. Equine PBMC cytokines profile and efficacy of a Parapoxvirus ovis based-immunomodulator after in vitro α- and γ-EHV infection. J Equine Vet Sci 2016. [DOI: 10.1016/j.jevs.2016.02.149] [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: 10/22/2022]
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Beishuizen CRL, van Gool WA, Busschers WB, Peters RJG, Moll van Charante EP, Richard E. [Web-based interventions targeting cardiovascular risk factors in older people; a systematic review and meta-analysis]. Ned Tijdschr Geneeskd 2016; 160:D581. [PMID: 27879180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
OBJECTIVE To evaluate whether web-based interventions for cardiovascular risk factor management reduce the risk of cardiovascular disease in older people. DESIGN Systematic review and meta-analysis. METHOD Embase, Medline, Cochrane Library and CINAHL were systematically searched from January 1995 to 3 November 2014. We included all randomised controlled trials for web-based interventions targeting cardiovascular risk factors in populations with a mean age of 50 and older. The outcome measures were cardiovascular risk factors (blood pressure, HbA1c, LDL cholesterol, weight, smoking status and physical activity) and the incidence of cardiovascular disease. We used random-effects models to pool the results of the studies. RESULTS A total of 57 studies (19,862 participants) fulfilled eligibility criteria, and 47 of these were suitable for meta-analysis. We found a significant reduction in systolic blood pressure (-2.66 mmHg, 95% CI -3.81 to -1.52), diastolic blood pressure (-1.26 mmHg, 95% CI -1.92 to -0.60), HbA1c level (-0.13%, 95% CI -0.22 to -0.05), LDL cholesterol level (-0.06 mmol/l, 95% CI -0.10 to -0.01), weight (-1.34 kg, 95% CI -1.91 to -0.77), and an increase in physical activity (standardized mean difference 0.25, 95% CI 0.10-0.39) in the intervention group when compared with the control group. Treatment effects were more pronounced in studies of short duration (< 12 months) and when combining the web-based intervention with human support by a health care professional. No difference in the incidence of cardiovascular disease was found between groups. CONCLUSION Web-based interventions have a beneficial effect on the cardiovascular risk profile, but this effect is modest and declines with time. Currently, there is insufficient evidence that this can prevent cardiovascular disease. A focus on long-term effects, effect-sustainability and clinical endpoints is recommended for future studies.
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Affiliation(s)
- C R L Beishuizen
- *Dit onderzoek werd eerder gepubliceerd in Journal of Medical Internet Research (2016;18:e55) met als titel 'Web-based interventions targeting cardiovascular risk factors in middle-aged and older people: a systematic review and meta-analysis'. Afgedrukt met toestemming
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van Uden I, van der Holst H, Schaapsmeerders P, Tuladhar A, van Norden A, de Laat K, Norris D, Claassen J, van Dijk E, Richard E, Kessels R, de Leeuw FE. Baseline white matter microstructural integrity is not related to cognitive decline after 5 years: The RUN DMC study. BBA Clin 2015; 4:108-114. [PMID: 26676146 PMCID: PMC4661735 DOI: 10.1016/j.bbacli.2015.10.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Revised: 10/18/2015] [Accepted: 10/21/2015] [Indexed: 01/20/2023]
Affiliation(s)
- I.W.M. van Uden
- Radboudumc, Donders Institute for Brain, Cognition and Behaviour, Department of Neurology, The Netherlands
| | - H.M. van der Holst
- Radboudumc, Donders Institute for Brain, Cognition and Behaviour, Department of Neurology, The Netherlands
| | - P. Schaapsmeerders
- Radboudumc, Donders Institute for Brain, Cognition and Behaviour, Department of Neurology, The Netherlands
- Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, Department of Medical Psychology, Nijmegen, The Netherlands
| | - A.M. Tuladhar
- Radboudumc, Donders Institute for Brain, Cognition and Behaviour, Department of Neurology, The Netherlands
| | | | - K.F. de Laat
- HagaZiekenhuis Den Haag, Department of Neurology, The Netherlands
| | - D.G. Norris
- Radboud University Nijmegen, Donders Institute for Brain, Cognition and Behaviour, Centre for Cognitive Neuroimaging, The Netherlands
- Erwin L. Hahn Institute for Magnetic Resonance Imaging, University of Duisburg-Essen, Arendahls Wiese 199, Tor 3, D-45141 Essen, Germany
| | - J.A.H.R. Claassen
- Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, Department of Geriatrics, Nijmegen, The Netherlands
| | - E.J. van Dijk
- Radboudumc, Donders Institute for Brain, Cognition and Behaviour, Department of Neurology, The Netherlands
| | - E. Richard
- Radboudumc, Donders Institute for Brain, Cognition and Behaviour, Department of Neurology, The Netherlands
| | - R.P.C. Kessels
- Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, Department of Geriatrics, Nijmegen, The Netherlands
- Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, Department of Medical Psychology, Nijmegen, The Netherlands
| | - F.-E. de Leeuw
- Radboudumc, Donders Institute for Brain, Cognition and Behaviour, Department of Neurology, The Netherlands
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Takhistov V, Abe K, Haga Y, Hayato Y, Ikeda M, Iyogi K, Kameda J, Kishimoto Y, Miura M, Moriyama S, Nakahata M, Nakajima T, Nakano Y, Nakayama S, Orii A, Sekiya H, Shiozawa M, Takeda A, Tanaka H, Tomura T, Wendell RA, Irvine T, Kajita T, Kametani I, Kaneyuki K, Nishimura Y, Richard E, Okumura K, Labarga L, Fernandez P, Gustafson J, Kachulis C, Kearns E, Raaf JL, Stone JL, Sulak LR, Berkman S, Nantais CM, Tanaka HA, Tobayama S, Goldhaber M, Carminati G, Kropp WR, Mine S, Weatherly P, Renshaw A, Smy MB, Sobel HW, Ganezer KS, Hartfiel BL, Hill J, Hong N, Kim JY, Lim IT, Himmel A, Li Z, Scholberg K, Walter CW, Wongjirad T, Ishizuka T, Tasaka S, Jang JS, Learned JG, Matsuno S, Smith SN, Friend M, Hasegawa T, Ishida T, Ishii T, Kobayashi T, Nakadaira T, Nakamura K, Oyama Y, Sakashita K, Sekiguchi T, Tsukamoto T, Suzuki AT, Takeuchi Y, Yano T, Hirota S, Huang K, Ieki K, Kikawa T, Minamino A, Nakaya T, Suzuki K, Takahashi S, Fukuda Y, Choi K, Itow Y, Suzuki T, Mijakowski P, Frankiewicz K, Hignight J, Imber J, Jung CK, Li X, Palomino JL, Wilking MJ, Yanagisawa C, Ishino H, Kayano T, Kibayashi A, Koshio Y, Mori T, Sakuda M, Kuno Y, Tacik R, Kim SB, Okazawa H, Choi Y, Nishijima K, Koshiba M, Suda Y, Totsuka Y, Yokoyama M, Bronner C, Hartz M, Martens K, Marti L, Suzuki Y, Vagins MR, Martin JF, de Perio P, Konaka A, Chen S, Zhang Y, Wilkes RJ. Search for Nucleon and Dinucleon Decays with an Invisible Particle and a Charged Lepton in the Final State at the Super-Kamiokande Experiment. Phys Rev Lett 2015; 115:121803. [PMID: 26430987 DOI: 10.1103/physrevlett.115.121803] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Indexed: 06/05/2023]
Abstract
Search results for nucleon decays p→e^{+}X, p→μ^{+}X, n→νγ (where X is an invisible, massless particle) as well as dinucleon decays np→e^{+}ν, np→μ^{+}ν, and np→τ^{+}ν in the Super-Kamiokande experiment are presented. Using single-ring data from an exposure of 273.4 kton·yr, a search for these decays yields a result consistent with no signal. Accordingly, lower limits on the partial lifetimes of τ_{p→e^{+}X}>7.9×10^{32} yr, τ_{p→μ^{+}X}>4.1×10^{32} yr, τ_{n→νγ}>5.5×10^{32} yr, τ_{np→e^{+}ν}>2.6×10^{32} yr, τ_{np→μ^{+}ν}>2.2×10^{32} yr, and τ_{np→τ^{+}ν}>2.9×10^{31} yr at a 90% confidence level are obtained. Some of these searches are novel.
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Affiliation(s)
- V Takhistov
- Department of Physics and Astronomy, University of California, Irvine, Irvine, California 92697-4575, USA
| | - K Abe
- Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, Kamioka, Gifu 506-1205, Japan
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - Y Haga
- Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, Kamioka, Gifu 506-1205, Japan
| | - Y Hayato
- Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, Kamioka, Gifu 506-1205, Japan
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - M Ikeda
- Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, Kamioka, Gifu 506-1205, Japan
| | - K Iyogi
- Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, Kamioka, Gifu 506-1205, Japan
| | - J Kameda
- Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, Kamioka, Gifu 506-1205, Japan
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - Y Kishimoto
- Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, Kamioka, Gifu 506-1205, Japan
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - M Miura
- Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, Kamioka, Gifu 506-1205, Japan
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - S Moriyama
- Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, Kamioka, Gifu 506-1205, Japan
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - M Nakahata
- Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, Kamioka, Gifu 506-1205, Japan
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - T Nakajima
- Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, Kamioka, Gifu 506-1205, Japan
| | - Y Nakano
- Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, Kamioka, Gifu 506-1205, Japan
| | - S Nakayama
- Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, Kamioka, Gifu 506-1205, Japan
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - A Orii
- Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, Kamioka, Gifu 506-1205, Japan
| | - H Sekiya
- Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, Kamioka, Gifu 506-1205, Japan
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - M Shiozawa
- Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, Kamioka, Gifu 506-1205, Japan
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - A Takeda
- Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, Kamioka, Gifu 506-1205, Japan
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - H Tanaka
- Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, Kamioka, Gifu 506-1205, Japan
| | - T Tomura
- Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, Kamioka, Gifu 506-1205, Japan
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - R A Wendell
- Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, Kamioka, Gifu 506-1205, Japan
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - T Irvine
- Research Center for Cosmic Neutrinos, Institute for Cosmic Ray Research, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - T Kajita
- Research Center for Cosmic Neutrinos, Institute for Cosmic Ray Research, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - I Kametani
- Research Center for Cosmic Neutrinos, Institute for Cosmic Ray Research, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - K Kaneyuki
- Research Center for Cosmic Neutrinos, Institute for Cosmic Ray Research, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - Y Nishimura
- Research Center for Cosmic Neutrinos, Institute for Cosmic Ray Research, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - E Richard
- Research Center for Cosmic Neutrinos, Institute for Cosmic Ray Research, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - K Okumura
- Research Center for Cosmic Neutrinos, Institute for Cosmic Ray Research, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - L Labarga
- Department of Theoretical Physics, University Autonoma Madrid, 28049 Madrid, Spain
| | - P Fernandez
- Department of Theoretical Physics, University Autonoma Madrid, 28049 Madrid, Spain
| | - J Gustafson
- Department of Physics, Boston University, Boston, Massachusetts 02215, USA
| | - C Kachulis
- Department of Physics, Boston University, Boston, Massachusetts 02215, USA
| | - E Kearns
- Department of Physics, Boston University, Boston, Massachusetts 02215, USA
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - J L Raaf
- Department of Physics, Boston University, Boston, Massachusetts 02215, USA
| | - J L Stone
- Department of Physics, Boston University, Boston, Massachusetts 02215, USA
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - L R Sulak
- Department of Physics, Boston University, Boston, Massachusetts 02215, USA
| | - S Berkman
- Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia V6T1Z4, Canada
| | - C M Nantais
- Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia V6T1Z4, Canada
| | - H A Tanaka
- Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia V6T1Z4, Canada
| | - S Tobayama
- Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia V6T1Z4, Canada
| | - M Goldhaber
- Physics Department, Brookhaven National Laboratory, Upton, New York 11973, USA
| | - G Carminati
- Department of Physics and Astronomy, University of California, Irvine, Irvine, California 92697-4575, USA
| | - W R Kropp
- Department of Physics and Astronomy, University of California, Irvine, Irvine, California 92697-4575, USA
| | - S Mine
- Department of Physics and Astronomy, University of California, Irvine, Irvine, California 92697-4575, USA
| | - P Weatherly
- Department of Physics and Astronomy, University of California, Irvine, Irvine, California 92697-4575, USA
| | - A Renshaw
- Department of Physics and Astronomy, University of California, Irvine, Irvine, California 92697-4575, USA
| | - M B Smy
- Department of Physics and Astronomy, University of California, Irvine, Irvine, California 92697-4575, USA
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - H W Sobel
- Department of Physics and Astronomy, University of California, Irvine, Irvine, California 92697-4575, USA
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - K S Ganezer
- Department of Physics, California State University, Dominguez Hills, Carson, California 90747, USA
| | - B L Hartfiel
- Department of Physics, California State University, Dominguez Hills, Carson, California 90747, USA
| | - J Hill
- Department of Physics, California State University, Dominguez Hills, Carson, California 90747, USA
| | - N Hong
- Department of Physics, Chonnam National University, Kwangju 500-757, Korea
| | - J Y Kim
- Department of Physics, Chonnam National University, Kwangju 500-757, Korea
| | - I T Lim
- Department of Physics, Chonnam National University, Kwangju 500-757, Korea
| | - A Himmel
- Department of Physics, Duke University, Durham, North Carolina 27708, USA
| | - Z Li
- Department of Physics, Duke University, Durham, North Carolina 27708, USA
| | - K Scholberg
- Department of Physics, Duke University, Durham, North Carolina 27708, USA
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - C W Walter
- Department of Physics, Duke University, Durham, North Carolina 27708, USA
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - T Wongjirad
- Department of Physics, Duke University, Durham, North Carolina 27708, USA
| | - T Ishizuka
- Junior College, Fukuoka Institute of Technology, Fukuoka, Fukuoka 811-0295, Japan
| | - S Tasaka
- Department of Physics, Gifu University, Gifu, Gifu 501-1193, Japan
| | - J S Jang
- GIST College, Gwangju Institute of Science and Technology, Gwangju 500-712, Korea
| | - J G Learned
- Department of Physics and Astronomy, University of Hawaii, Honolulu, Hawaii 96822, USA
| | - S Matsuno
- Department of Physics and Astronomy, University of Hawaii, Honolulu, Hawaii 96822, USA
| | - S N Smith
- Department of Physics and Astronomy, University of Hawaii, Honolulu, Hawaii 96822, USA
| | - M Friend
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - T Hasegawa
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - T Ishida
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - T Ishii
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - T Kobayashi
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - T Nakadaira
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - K Nakamura
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - Y Oyama
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - K Sakashita
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - T Sekiguchi
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - T Tsukamoto
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - A T Suzuki
- Department of Physics, Kobe University, Kobe, Hyogo 657-8501, Japan
| | - Y Takeuchi
- Department of Physics, Kobe University, Kobe, Hyogo 657-8501, Japan
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - T Yano
- Department of Physics, Kobe University, Kobe, Hyogo 657-8501, Japan
| | - S Hirota
- Department of Physics, Kyoto University, Kyoto, Kyoto 606-8502, Japan
| | - K Huang
- Department of Physics, Kyoto University, Kyoto, Kyoto 606-8502, Japan
| | - K Ieki
- Department of Physics, Kyoto University, Kyoto, Kyoto 606-8502, Japan
| | - T Kikawa
- Department of Physics, Kyoto University, Kyoto, Kyoto 606-8502, Japan
| | - A Minamino
- Department of Physics, Kyoto University, Kyoto, Kyoto 606-8502, Japan
| | - T Nakaya
- Department of Physics, Kyoto University, Kyoto, Kyoto 606-8502, Japan
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - K Suzuki
- Department of Physics, Kyoto University, Kyoto, Kyoto 606-8502, Japan
| | - S Takahashi
- Department of Physics, Kyoto University, Kyoto, Kyoto 606-8502, Japan
| | - Y Fukuda
- Department of Physics, Miyagi University of Education, Sendai, Miyagi 980-0845, Japan
| | - K Choi
- Solar Terrestrial Environment Laboratory, Nagoya University, Nagoya, Aichi 464-8602, Japan
| | - Y Itow
- Solar Terrestrial Environment Laboratory, Nagoya University, Nagoya, Aichi 464-8602, Japan
| | - T Suzuki
- Solar Terrestrial Environment Laboratory, Nagoya University, Nagoya, Aichi 464-8602, Japan
| | - P Mijakowski
- National Centre For Nuclear Research, 00-681 Warsaw, Poland
| | - K Frankiewicz
- National Centre For Nuclear Research, 00-681 Warsaw, Poland
| | - J Hignight
- Department of Physics and Astronomy, State University of New York at Stony Brook, New York 11794-3800, USA
| | - J Imber
- Department of Physics and Astronomy, State University of New York at Stony Brook, New York 11794-3800, USA
| | - C K Jung
- Department of Physics and Astronomy, State University of New York at Stony Brook, New York 11794-3800, USA
| | - X Li
- Department of Physics and Astronomy, State University of New York at Stony Brook, New York 11794-3800, USA
| | - J L Palomino
- Department of Physics and Astronomy, State University of New York at Stony Brook, New York 11794-3800, USA
| | - M J Wilking
- Department of Physics and Astronomy, State University of New York at Stony Brook, New York 11794-3800, USA
| | - C Yanagisawa
- Department of Physics and Astronomy, State University of New York at Stony Brook, New York 11794-3800, USA
| | - H Ishino
- Department of Physics, Okayama University, Okayama, Okayama 700-8530, Japan
| | - T Kayano
- Department of Physics, Okayama University, Okayama, Okayama 700-8530, Japan
| | - A Kibayashi
- Department of Physics, Okayama University, Okayama, Okayama 700-8530, Japan
| | - Y Koshio
- Department of Physics, Okayama University, Okayama, Okayama 700-8530, Japan
| | - T Mori
- Department of Physics, Okayama University, Okayama, Okayama 700-8530, Japan
| | - M Sakuda
- Department of Physics, Okayama University, Okayama, Okayama 700-8530, Japan
| | - Y Kuno
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - R Tacik
- Department of Physics, University of Regina, 3737 Wascana Parkway, Regina, Saskatchewan S4SOA2, Canada
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T2A3, Canada
| | - S B Kim
- Department of Physics, Seoul National University, Seoul 151-742, Korea
| | - H Okazawa
- Department of Informatics in Social Welfare, Shizuoka University of Welfare, Yaizu, Shizuoka 425-8611, Japan
| | - Y Choi
- Department of Physics, Sungkyunkwan University, Suwon 440-746, Korea
| | - K Nishijima
- Department of Physics, Tokai University, Hiratsuka, Kanagawa 259-1292, Japan
| | - M Koshiba
- The University of Tokyo, Bunkyo, Tokyo 113-0033, Japan
| | - Y Suda
- The University of Tokyo, Bunkyo, Tokyo 113-0033, Japan
| | - Y Totsuka
- The University of Tokyo, Bunkyo, Tokyo 113-0033, Japan
| | - M Yokoyama
- The University of Tokyo, Bunkyo, Tokyo 113-0033, Japan
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - C Bronner
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - M Hartz
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - K Martens
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - Ll Marti
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - Y Suzuki
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - M R Vagins
- Department of Physics and Astronomy, University of California, Irvine, Irvine, California 92697-4575, USA
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - J F Martin
- Department of Physics, University of Toronto, 60 St., Toronto, Ontario M5S1A7, Canada
| | - P de Perio
- Department of Physics, University of Toronto, 60 St., Toronto, Ontario M5S1A7, Canada
| | - A Konaka
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T2A3, Canada
| | - S Chen
- Department of Engineering Physics, Tsinghua University, Beijing 100084, China
| | - Y Zhang
- Department of Engineering Physics, Tsinghua University, Beijing 100084, China
| | - R J Wilkes
- Department of Physics, University of Washington, Seattle, Washington 98195-1560, USA
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Mutsaerts HJMM, van Dalen JW, Heijtel DFR, Groot PFC, Majoie CBLM, Petersen ET, Richard E, Nederveen AJ. Cerebral Perfusion Measurements in Elderly with Hypertension Using Arterial Spin Labeling. PLoS One 2015; 10:e0133717. [PMID: 26241897 PMCID: PMC4524722 DOI: 10.1371/journal.pone.0133717] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2014] [Accepted: 07/01/2015] [Indexed: 11/18/2022] Open
Abstract
Purpose The current study assesses the feasibility and value of crushed cerebral blood flow (CBFcrushed) and arterial transit time (ATT) estimations for large clinical imaging studies in elderly with hypertension. Material and Methods Two pseudo-continuous arterial spin labeling (ASL) scans with (CBFcrushed) and without flow crushers (CBFnon-crushed) were performed in 186 elderly with hypertension, from which CBF and ATT maps were calculated. Standard flow territory maps were subdivided into proximal, intermediate and distal flow territories, based on the measured ATT. The coefficient of variation (CV) and physiological correlations with age and gender were compared between the three perfusion parameters. Results There was no difference in CV between CBFcrushed and CBFnon-crushed (15–24%, p>0.4) but the CV of ATT (4–9%) was much smaller. The total gray matter correlations with age and gender were most significant with ATT (p = .016 and p<.001 respectively), in between for CBFcrushed (p = .206 and p = .019) and least significant for CBFnon-crushed (p = .236 and p = .100). Conclusion These data show the feasibility and added value of combined measurements of both crushed CBF and ATT for group analyses in elderly with hypertension. The obtained flow territories provide knowledge on vascular anatomy of elderly with hypertension and can be used in future studies to investigate regional vascular effects.
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Affiliation(s)
- H. J. M. M. Mutsaerts
- Department of Radiology, Academic Medical Center, Amsterdam, The Netherlands
- * E-mail:
| | - J. W. van Dalen
- Department of Neurology, Academic Medical Center, Amsterdam, The Netherlands
| | - D. F. R. Heijtel
- Department of Radiology, Academic Medical Center, Amsterdam, The Netherlands
| | - P. F. C. Groot
- Department of Radiology, Academic Medical Center, Amsterdam, The Netherlands
| | - C. B. L. M. Majoie
- Department of Radiology, Academic Medical Center, Amsterdam, The Netherlands
| | - E. T. Petersen
- Danish Research Centre for Magnetic Resonance, Centre for Functional and Diagnostic Imaging and Research, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark
| | - E. Richard
- Department of Neurology, Academic Medical Center, Amsterdam, The Netherlands
- Department of Neurology, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - A. J. Nederveen
- Department of Radiology, Academic Medical Center, Amsterdam, The Netherlands
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Gustafson J, Abe K, Haga Y, Hayato Y, Ikeda M, Iyogi K, Kameda J, Kishimoto Y, Miura M, Moriyama S, Nakahata M, Nakajima T, Nakano Y, Nakayama S, Orii A, Sekiya H, Shiozawa M, Takeda A, Tanaka H, Tomura T, Wendell R, Irvine T, Kajita T, Kametani I, Kaneyuki K, Nishimura Y, Richard E, Okumura K, Labarga L, Fernandez P, Berkman S, Tanaka H, Tobayama S, Kearns E, Raaf J, Stone J, Sulak L, Goldhaber M, Carminati G, Kropp W, Mine S, Weatherly P, Renshaw A, Smy M, Sobel H, Takhistov V, Ganezer K, Hartfiel B, Hill J, Hong N, Kim J, Lim I, Akiri T, Himmel A, Scholberg K, Walter C, Wongjirad T, Ishizuka T, Tasaka S, Jang J, Learned J, Matsuno S, Smith S, Hasegawa T, Ishida T, Ishii T, Kobayashi T, Nakadaira T, Nakamura K, Oyama Y, Sakashita K, Sekiguchi T, Tsukamoto T, Suzuki A, Takeuchi Y, Yano T, Hirota S, Huang K, Ieki K, Kikawa T, Minamino A, Nakaya T, Suzuki K, Takahashi S, Fukuda Y, Choi K, Itow Y, Mitsuka G, Suzuki T, Mijakowski P, Hignight J, Imber J, Jung C, Palomino J, Yanagisawa C, Ishino H, Kayano T, Kibayashi A, Koshio Y, Mori T, Sakuda M, Kuno Y, Tacik R, Kim S, Okazawa H, Choi Y, Nishijima K, Koshiba M, Suda Y, Totsuka Y, Yokoyama M, Bronner C, Martens K, Marti L, Suzuki Y, Vagins M, Martin J, de Perio P, Konaka A, Wilking M, Chen S, Zhang Y, Wilkes R. Search for dinucleon decay into pions at Super-Kamiokande. Int J Clin Exp Med 2015. [DOI: 10.1103/physrevd.91.072009] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Farrag MS, Mikula I, Richard E, Saudek V, De Verneuil H, Martásek P. Hepatoerythropoietic Porphyria Caused by a Novel Homoallelic Mutation in Uroporphyrinogen Decarboxylase Gene in Egyptian Patients. Folia Biol (Praha) 2015; 61:219-226. [PMID: 26789143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Porphyrias are metabolic disorders resulting from mutations in haem biosynthetic pathway genes. Hepatoerythropoietic porphyria (HEP) is a rare type of porphyria caused by the deficiency of the fifth enzyme (uroporphyrinogen decarboxylase, UROD) in this pathway. The defect in the enzymatic activity is due to biallelic mutations in the UROD gene. Currently, 109 UROD mutations are known. The human disease has an early onset, manifesting in infancy or early childhood with red urine, skin photosensitivity in sun-exposed areas, and hypertrichosis. Similar defects and links to photosensitivity and hepatopathy exist in several animal models, including zebrafish and mice. In the present study, we report a new mutation in the UROD gene in Egyptian patients with HEP. We show that the homozygous c.T163A missense mutation leads to a substitution of a conserved phenylalanine (amino acid 55) for isoleucine in the enzyme active site, causing a dramatic decrease in the enzyme activity (19 % of activity of wild-type enzyme). Inspection of the UROD crystal structure shows that Phe-55 contacts the substrate and is located in the loop that connects helices 2 and 3. Phe-55 is strictly conserved in both prokaryotic and eukaryotic UROD. The F55I substitution likely interferes with the enzyme-substrate interaction.
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Affiliation(s)
- M S Farrag
- Department of Paediatrics and Adolescent Medicine, First Faculty of Medicine, Charles University in Prague and General University Hospital in Prague, Czech Republic
| | - I Mikula
- Department of Paediatrics and Adolescent Medicine, First Faculty of Medicine, Charles University in Prague and General University Hospital in Prague, Czech Republic
| | - E Richard
- University of Bordeaux, Bordeaux, France
| | - V Saudek
- University of Cambridge Metabolic Research Laboratories and MRC Metabolic Diseases Unit, Wellcome-MRC Institute of Metabolic Science, Addenbrooke's Hospital, Cambridge, UK
| | | | - P Martásek
- Department of Paediatrics and Adolescent Medicine, First Faculty of Medicine, Charles University in Prague and General University Hospital in Prague, Czech Republic
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Brainin M, Tuomilehto J, Heiss WD, Bornstein NM, Bath PMW, Teuschl Y, Richard E, Guekht A, Quinn T. Post-stroke cognitive decline: an update and perspectives for clinical research. Eur J Neurol 2014; 22:229-38, e13-6. [PMID: 25492161 DOI: 10.1111/ene.12626] [Citation(s) in RCA: 155] [Impact Index Per Article: 15.5] [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: 10/14/2014] [Accepted: 10/17/2014] [Indexed: 01/12/2023]
Abstract
The close relationship between stroke and dementia is an important health issue. Ischaemic stroke can facilitate the onset of vascular dementia as well as aggravate pre-existing cognitive decline. The onset of cognitive decline may become manifest immediately following the onset of ischaemic stroke, but often there is a delay in the development of cognitive decline after a stroke. This delay can be seen as a therapeutic time window allowing interventions to be applied to preserve cognition following stroke. Both neurodegenerative and vascular mechanisms are activated and probably result in overlapping processes within the neurovascular unit. This review focuses on the incidence and prevalence of cognitive decline following stroke, predisposing stroke aetiologies, pre-stroke decline, imaging factors and biomarkers. Outcomes are discussed in relation to timing of assessment and neuropsychological tests used for evaluation of cognitive decline in ischaemic stroke patients. Including such tests in routine evaluations of stroke patients after some weeks or months is recommended. Finally, an outlook on ongoing and planned intervention trials is added and some recommendations for future research are proposed.
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Affiliation(s)
- M Brainin
- Department for Clinical Neurosciences and Preventive Medicine, Danube University Krems, Krems, Austria
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Giraudon A, Richard E, Godron A, Bouty A, Dobremez E, Barat P, Blouin JM, Llanas B, Harambat J. [Clinical and biochemical characterization of childhood urolithiasis]. Arch Pediatr 2014; 21:1322-9. [PMID: 25287140 DOI: 10.1016/j.arcped.2014.08.027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Revised: 06/29/2014] [Accepted: 08/27/2014] [Indexed: 11/29/2022]
Abstract
OBJECTIVES Urolithiasis is rare in children, but the incidence has increased over the past few decades. This study aims at describing the clinical and biochemical characteristics, etiology, and treatment of urolithiasis in children. METHODS This was a retrospective study of all children under 16 years of age seen at the Bordeaux University Children's Hospital with a diagnosis of urolithiasis. The diagnosis was confirmed either radiologically or clinically by the expulsion of the stone. RESULTS A total of 186 children with a diagnosis of urolithiasis between 1994 and 2012 were included. The median age at diagnosis was 7.4 years. The male-to-female ratio was 1.9. The estimated annual incidence was around 5.5/100,000 children under 15 years of age in the past 5 years. The main presenting feature was nonspecific abdominal pain (71%). Metabolic calculi accounted for 48% of the patients with idiopathic hypercalciuria as the main cause. Genetic diseases accounted for 15% of cases. The proportion of infectious calculi was estimated at 33% and decreased in the past two decades. Stone fragments were sent for analysis in 86 children, and calcium oxalate was the major component (37%), followed by calcium phosphate (33%), purine (9%), and struvite (8%). At least 26% of patients experienced recurrence of stone passage. CONCLUSION This retrospective study highlighted changes in characteristics of pediatric urolithiasis over time. Childhood-onset urolithiasis requires complete etiological work-up so that a metabolic cause with a high risk of recurrence does not go unrecognized.
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Affiliation(s)
- A Giraudon
- Unité de néphrologie-endocrinologie, service de pédiatrie, hôpital Pellegrin-Enfants, CHU de Bordeaux, 33076 Bordeaux, France; Service de pédiatrie, centre hospitalier de Pau, 64000 Pau, France
| | - E Richard
- Laboratoire de biochimie, hôpital Pellegrin, CHU de Bordeaux, 33076 Bordeaux, France; Biothérapies des maladies génétiques et cancers, U1035, université de Bordeaux, 33000 Bordeaux, France
| | - A Godron
- Unité de néphrologie-endocrinologie, service de pédiatrie, hôpital Pellegrin-Enfants, CHU de Bordeaux, 33076 Bordeaux, France
| | - A Bouty
- Service de chirurgie pédiatrique, hôpital Pellegrin-Enfants, CHU de Bordeaux, 33076 Bordeaux, France
| | - E Dobremez
- Service de chirurgie pédiatrique, hôpital Pellegrin-Enfants, CHU de Bordeaux, 33076 Bordeaux, France
| | - P Barat
- Unité de néphrologie-endocrinologie, service de pédiatrie, hôpital Pellegrin-Enfants, CHU de Bordeaux, 33076 Bordeaux, France
| | - J-M Blouin
- Laboratoire de biochimie, hôpital Pellegrin, CHU de Bordeaux, 33076 Bordeaux, France; Biothérapies des maladies génétiques et cancers, U1035, université de Bordeaux, 33000 Bordeaux, France
| | - B Llanas
- Unité de néphrologie-endocrinologie, service de pédiatrie, hôpital Pellegrin-Enfants, CHU de Bordeaux, 33076 Bordeaux, France
| | - J Harambat
- Unité de néphrologie-endocrinologie, service de pédiatrie, hôpital Pellegrin-Enfants, CHU de Bordeaux, 33076 Bordeaux, France.
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Takhistov V, Abe K, Haga Y, Hayato Y, Ikeda M, Iyogi K, Kameda J, Kishimoto Y, Miura M, Moriyama S, Nakahata M, Nakano Y, Nakayama S, Sekiya H, Shiozawa M, Suzuki Y, Takeda A, Tanaka H, Tomura T, Ueno K, Wendell RA, Yokozawa T, Irvine T, Kajita T, Kametani I, Kaneyuki K, Lee KP, McLachlan T, Nishimura Y, Richard E, Okumura K, Labarga L, Fernandez P, Berkman S, Tanaka HA, Tobayama S, Gustafson J, Kearns E, Raaf JL, Stone JL, Sulak LR, Goldhaber M, Carminati G, Kropp WR, Mine S, Weatherly P, Renshaw A, Smy MB, Sobel HW, Ganezer KS, Hartfiel BL, Hill J, Keig WE, Hong N, Kim JY, Lim IT, Akiri T, Himmel A, Scholberg K, Walter CW, Wongjirad T, Ishizuka T, Tasaka S, Jang JS, Learned JG, Matsuno S, Smith SN, Hasegawa T, Ishida T, Ishii T, Kobayashi T, Nakadaira T, Nakamura K, Oyama Y, Sakashita K, Sekiguchi T, Tsukamoto T, Suzuki AT, Takeuchi Y, Bronner C, Hirota S, Huang K, Ieki K, Kikawa T, Minamino A, Murakami A, Nakaya T, Suzuki K, Takahashi S, Tateishi K, Fukuda Y, Choi K, Itow Y, Mitsuka G, Mijakowski P, Hignight J, Imber J, Jung CK, Yanagisawa C, Ishino H, Kibayashi A, Koshio Y, Mori T, Sakuda M, Yamaguchi R, Yano T, Kuno Y, Tacik R, Kim SB, Okazawa H, Choi Y, Nishijima K, Koshiba M, Suda Y, Totsuka Y, Yokoyama M, Martens K, Marti L, Vagins MR, Martin JF, de Perio P, Konaka A, Wilking MJ, Chen S, Zhang Y, Connolly K, Wilkes RJ. Search for trilepton nucleon decay via p→e+νν and p→μ+νν in the Super-Kamiokande experiment. Phys Rev Lett 2014; 113:101801. [PMID: 25238348 DOI: 10.1103/physrevlett.113.101801] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2014] [Indexed: 06/03/2023]
Abstract
The trilepton nucleon decay modes p→e+νν and p→μ+νν violate |Δ(B-L)| by two units. Using data from a 273.4 kt yr exposure of Super-Kamiokande a search for these decays yields a fit consistent with no signal. Accordingly, lower limits on the partial lifetimes of τp→e+νν>1.7×10(32) years and τp→μ+νν>2.2×10(32) years at a 90% confidence level are obtained. These limits can constrain Grand Unified Theories which allow for such processes.
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Affiliation(s)
- V Takhistov
- Department of Physics and Astronomy, University of California, Irvine, Irvine, California 92697-4575, USA
| | - K Abe
- Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, Kamioka, Gifu 506-1205, Japan and Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - Y Haga
- Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, Kamioka, Gifu 506-1205, Japan
| | - Y Hayato
- Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, Kamioka, Gifu 506-1205, Japan and Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - M Ikeda
- Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, Kamioka, Gifu 506-1205, Japan
| | - K Iyogi
- Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, Kamioka, Gifu 506-1205, Japan
| | - J Kameda
- Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, Kamioka, Gifu 506-1205, Japan and Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - Y Kishimoto
- Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, Kamioka, Gifu 506-1205, Japan and Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - M Miura
- Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, Kamioka, Gifu 506-1205, Japan and Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - S Moriyama
- Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, Kamioka, Gifu 506-1205, Japan and Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - M Nakahata
- Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, Kamioka, Gifu 506-1205, Japan and Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - Y Nakano
- Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, Kamioka, Gifu 506-1205, Japan
| | - S Nakayama
- Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, Kamioka, Gifu 506-1205, Japan and Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - H Sekiya
- Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, Kamioka, Gifu 506-1205, Japan and Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - M Shiozawa
- Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, Kamioka, Gifu 506-1205, Japan and Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - Y Suzuki
- Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, Kamioka, Gifu 506-1205, Japan and Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - A Takeda
- Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, Kamioka, Gifu 506-1205, Japan and Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - H Tanaka
- Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, Kamioka, Gifu 506-1205, Japan
| | - T Tomura
- Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, Kamioka, Gifu 506-1205, Japan and Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - K Ueno
- Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, Kamioka, Gifu 506-1205, Japan
| | - R A Wendell
- Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, Kamioka, Gifu 506-1205, Japan and Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - T Yokozawa
- Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, Kamioka, Gifu 506-1205, Japan
| | - T Irvine
- Research Center for Cosmic Neutrinos, Institute for Cosmic Ray Research, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - T Kajita
- Research Center for Cosmic Neutrinos, Institute for Cosmic Ray Research, University of Tokyo, Kashiwa, Chiba 277-8582, Japan and Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - I Kametani
- Research Center for Cosmic Neutrinos, Institute for Cosmic Ray Research, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - K Kaneyuki
- Research Center for Cosmic Neutrinos, Institute for Cosmic Ray Research, University of Tokyo, Kashiwa, Chiba 277-8582, Japan and Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - K P Lee
- Research Center for Cosmic Neutrinos, Institute for Cosmic Ray Research, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - T McLachlan
- Research Center for Cosmic Neutrinos, Institute for Cosmic Ray Research, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - Y Nishimura
- Research Center for Cosmic Neutrinos, Institute for Cosmic Ray Research, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - E Richard
- Research Center for Cosmic Neutrinos, Institute for Cosmic Ray Research, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - K Okumura
- Research Center for Cosmic Neutrinos, Institute for Cosmic Ray Research, University of Tokyo, Kashiwa, Chiba 277-8582, Japan and Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - L Labarga
- Department of Theoretical Physics, University Autonoma Madrid, 28049 Madrid, Spain
| | - P Fernandez
- Department of Theoretical Physics, University Autonoma Madrid, 28049 Madrid, Spain
| | - S Berkman
- Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia, V6T1Z4, Canada
| | - H A Tanaka
- Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia, V6T1Z4, Canada
| | - S Tobayama
- Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia, V6T1Z4, Canada
| | - J Gustafson
- Department of Physics, Boston University, Boston, Massachusetts 02215, USA
| | - E Kearns
- Department of Physics, Boston University, Boston, Massachusetts 02215, USA and Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - J L Raaf
- Department of Physics, Boston University, Boston, Massachusetts 02215, USA
| | - J L Stone
- Department of Physics, Boston University, Boston, Massachusetts 02215, USA and Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - L R Sulak
- Department of Physics, Boston University, Boston, Massachusetts 02215, USA
| | - M Goldhaber
- Physics Department, Brookhaven National Laboratory, Upton, New York 11973, USA
| | - G Carminati
- Department of Physics and Astronomy, University of California, Irvine, Irvine, California 92697-4575, USA
| | - W R Kropp
- Department of Physics and Astronomy, University of California, Irvine, Irvine, California 92697-4575, USA
| | - S Mine
- Department of Physics and Astronomy, University of California, Irvine, Irvine, California 92697-4575, USA
| | - P Weatherly
- Department of Physics and Astronomy, University of California, Irvine, Irvine, California 92697-4575, USA
| | - A Renshaw
- Department of Physics and Astronomy, University of California, Irvine, Irvine, California 92697-4575, USA
| | - M B Smy
- Department of Physics and Astronomy, University of California, Irvine, Irvine, California 92697-4575, USA and Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - H W Sobel
- Department of Physics and Astronomy, University of California, Irvine, Irvine, California 92697-4575, USA and Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - K S Ganezer
- Department of Physics, California State University, Dominguez Hills, Carson, California 90747, USA
| | - B L Hartfiel
- Department of Physics, California State University, Dominguez Hills, Carson, California 90747, USA
| | - J Hill
- Department of Physics, California State University, Dominguez Hills, Carson, California 90747, USA
| | - W E Keig
- Department of Physics, California State University, Dominguez Hills, Carson, California 90747, USA
| | - N Hong
- Department of Physics, Chonnam National University, Kwangju 500-757, Korea
| | - J Y Kim
- Department of Physics, Chonnam National University, Kwangju 500-757, Korea
| | - I T Lim
- Department of Physics, Chonnam National University, Kwangju 500-757, Korea
| | - T Akiri
- Department of Physics, Duke University, Durham, North Carolina 27708, USA
| | - A Himmel
- Department of Physics, Duke University, Durham, North Carolina 27708, USA
| | - K Scholberg
- Department of Physics, Duke University, Durham, North Carolina 27708, USA and Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - C W Walter
- Department of Physics, Duke University, Durham, North Carolina 27708, USA and Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - T Wongjirad
- Department of Physics, Duke University, Durham, North Carolina 27708, USA
| | - T Ishizuka
- Junior College, Fukuoka Institute of Technology, Fukuoka, Fukuoka 811-0295, Japan
| | - S Tasaka
- Department of Physics, Gifu University, Gifu, Gifu 501-1193, Japan
| | - J S Jang
- GIST College, Gwangju Institute of Science and Technology, Gwangju 500-712, Korea
| | - J G Learned
- Department of Physics and Astronomy, University of Hawaii, Honolulu, Hawaii 96822, USA
| | - S Matsuno
- Department of Physics and Astronomy, University of Hawaii, Honolulu, Hawaii 96822, USA
| | - S N Smith
- Department of Physics and Astronomy, University of Hawaii, Honolulu, Hawaii 96822, USA
| | - T Hasegawa
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - T Ishida
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - T Ishii
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - T Kobayashi
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - T Nakadaira
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - K Nakamura
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan and Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - Y Oyama
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - K Sakashita
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - T Sekiguchi
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - T Tsukamoto
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - A T Suzuki
- Department of Physics, Kobe University, Kobe, Hyogo 657-8501, Japan
| | - Y Takeuchi
- Department of Physics, Kobe University, Kobe, Hyogo 657-8501, Japan
| | - C Bronner
- Department of Physics, Kyoto University, Kyoto, Kyoto 606-8502, Japan
| | - S Hirota
- Department of Physics, Kyoto University, Kyoto, Kyoto 606-8502, Japan
| | - K Huang
- Department of Physics, Kyoto University, Kyoto, Kyoto 606-8502, Japan
| | - K Ieki
- Department of Physics, Kyoto University, Kyoto, Kyoto 606-8502, Japan
| | - T Kikawa
- Department of Physics, Kyoto University, Kyoto, Kyoto 606-8502, Japan
| | - A Minamino
- Department of Physics, Kyoto University, Kyoto, Kyoto 606-8502, Japan
| | - A Murakami
- Department of Physics, Kyoto University, Kyoto, Kyoto 606-8502, Japan
| | - T Nakaya
- Department of Physics, Kyoto University, Kyoto, Kyoto 606-8502, Japan and Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - K Suzuki
- Department of Physics, Kyoto University, Kyoto, Kyoto 606-8502, Japan
| | - S Takahashi
- Department of Physics, Kyoto University, Kyoto, Kyoto 606-8502, Japan
| | - K Tateishi
- Department of Physics, Kyoto University, Kyoto, Kyoto 606-8502, Japan
| | - Y Fukuda
- Department of Physics, Miyagi University of Education, Sendai, Miyagi 980-0845, Japan
| | - K Choi
- Solar Terrestrial Environment Laboratory, Nagoya University, Nagoya, Aichi 464-8602, Japan
| | - Y Itow
- Solar Terrestrial Environment Laboratory, Nagoya University, Nagoya, Aichi 464-8602, Japan
| | - G Mitsuka
- Solar Terrestrial Environment Laboratory, Nagoya University, Nagoya, Aichi 464-8602, Japan
| | - P Mijakowski
- National Centre For Nuclear Research, 00-681 Warsaw, Poland
| | - J Hignight
- Department of Physics and Astronomy, State University of New York at Stony Brook, Stony Brook, New York 11794-3800, USA
| | - J Imber
- Department of Physics and Astronomy, State University of New York at Stony Brook, Stony Brook, New York 11794-3800, USA
| | - C K Jung
- Department of Physics and Astronomy, State University of New York at Stony Brook, Stony Brook, New York 11794-3800, USA
| | - C Yanagisawa
- Department of Physics and Astronomy, State University of New York at Stony Brook, Stony Brook, New York 11794-3800, USA
| | - H Ishino
- Department of Physics, Okayama University, Okayama, Okayama 700-8530, Japan
| | - A Kibayashi
- Department of Physics, Okayama University, Okayama, Okayama 700-8530, Japan
| | - Y Koshio
- Department of Physics, Okayama University, Okayama, Okayama 700-8530, Japan
| | - T Mori
- Department of Physics, Okayama University, Okayama, Okayama 700-8530, Japan
| | - M Sakuda
- Department of Physics, Okayama University, Okayama, Okayama 700-8530, Japan
| | - R Yamaguchi
- Department of Physics, Okayama University, Okayama, Okayama 700-8530, Japan
| | - T Yano
- Department of Physics, Okayama University, Okayama, Okayama 700-8530, Japan
| | - Y Kuno
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - R Tacik
- Department of Physics, University of Regina, 3737 Wascana Parkway, Regina, Saskatchewan, S4SOA2, Canada and TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia, V6T2A3, Canada
| | - S B Kim
- Department of Physics, Seoul National University, Seoul 151-742, Korea
| | - H Okazawa
- Department of Informatics in Social Welfare, Shizuoka University of Welfare, Yaizu, Shizuoka, 425-8611, Japan
| | - Y Choi
- Department of Physics, Sungkyunkwan University, Suwon 440-746, Korea
| | - K Nishijima
- Department of Physics, Tokai University, Hiratsuka, Kanagawa 259-1292, Japan
| | - M Koshiba
- The University of Tokyo, Bunkyo, Tokyo 113-0033, Japan
| | - Y Suda
- The University of Tokyo, Bunkyo, Tokyo 113-0033, Japan
| | - Y Totsuka
- The University of Tokyo, Bunkyo, Tokyo 113-0033, Japan
| | - M Yokoyama
- The University of Tokyo, Bunkyo, Tokyo 113-0033, Japan and Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - K Martens
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - Ll Marti
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - M R Vagins
- Department of Physics and Astronomy, University of California, Irvine, Irvine, California 92697-4575, USA and Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - J F Martin
- Department of Physics, University of Toronto, 60 Saint George Street, Toronto, Ontario, M5S1A7, Canada
| | - P de Perio
- Department of Physics, University of Toronto, 60 Saint George Street, Toronto, Ontario, M5S1A7, Canada
| | - A Konaka
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia, V6T2A3, Canada
| | - M J Wilking
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia, V6T2A3, Canada
| | - S Chen
- Department of Engineering Physics, Tsinghua University, Beijing, 100084, China
| | - Y Zhang
- Department of Engineering Physics, Tsinghua University, Beijing, 100084, China
| | - K Connolly
- Department of Physics, University of Washington, Seattle, Washington 98195-1560, USA
| | - R J Wilkes
- Department of Physics, University of Washington, Seattle, Washington 98195-1560, USA
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Trocoli A, Bensadoun P, Richard E, Labrunie G, Merhi F, Schläfli AM, Brigger D, Souquere S, Pierron G, Pasquet JM, Soubeyran P, Reiffers J, Ségal-Bendirdjian E, Tschan MP, Djavaheri-Mergny M. p62/SQSTM1 upregulation constitutes a survival mechanism that occurs during granulocytic differentiation of acute myeloid leukemia cells. Cell Death Differ 2014; 21:1852-61. [PMID: 25034783 DOI: 10.1038/cdd.2014.102] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2014] [Revised: 06/10/2014] [Accepted: 06/11/2014] [Indexed: 12/22/2022] Open
Abstract
The p62/SQSTM1 adapter protein has an important role in the regulation of several key signaling pathways and helps transport ubiquitinated proteins to the autophagosomes and proteasome for degradation. Here, we investigate the regulation and roles of p62/SQSTM1 during acute myeloid leukemia (AML) cell maturation into granulocytes. Levels of p62/SQSTM1 mRNA and protein were both significantly increased during all-trans retinoic acid (ATRA)-induced differentiation of AML cells through a mechanism that depends on NF-κB activation. We show that this response constitutes a survival mechanism that prolongs the life span of mature AML cells and mitigates the effects of accumulation of aggregated proteins that occurs during granulocytic differentiation. Interestingly, ATRA-induced p62/SQSTM1 upregulation was impaired in maturation-resistant AML cells but was reactivated when differentiation was restored in these cells. Primary blast cells of AML patients and CD34(+) progenitors exhibited significantly lower p62/SQSTM1 mRNA levels than did mature granulocytes from healthy donors. Our results demonstrate that p62/SQSTM1 expression is upregulated in mature compared with immature myeloid cells and reveal a pro-survival function of the NF-κB/SQSTM1 signaling axis during granulocytic differentiation of AML cells. These findings may help our understanding of neutrophil/granulocyte development and will guide the development of novel therapeutic strategies for refractory and relapsed AML patients with previous exposure to ATRA.
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Affiliation(s)
- A Trocoli
- 1] INSERM U916 VINCO, Institut Bergonié, 229, cours de l'Argonne 33076 Bordeaux Cedex, France [2] Université Bordeaux, 146 rue Léo-Saignat, F-33076 Bordeaux cedex, France
| | - P Bensadoun
- 1] INSERM U916 VINCO, Institut Bergonié, 229, cours de l'Argonne 33076 Bordeaux Cedex, France [2] Université Bordeaux, 146 rue Léo-Saignat, F-33076 Bordeaux cedex, France
| | - E Richard
- 1] INSERM U916 VINCO, Institut Bergonié, 229, cours de l'Argonne 33076 Bordeaux Cedex, France [2] Université Bordeaux, 146 rue Léo-Saignat, F-33076 Bordeaux cedex, France
| | - G Labrunie
- 1] INSERM U916 VINCO, Institut Bergonié, 229, cours de l'Argonne 33076 Bordeaux Cedex, France [2] Université Bordeaux, 146 rue Léo-Saignat, F-33076 Bordeaux cedex, France
| | - F Merhi
- 1] INSERM U916 VINCO, Institut Bergonié, 229, cours de l'Argonne 33076 Bordeaux Cedex, France [2] Université Bordeaux, 146 rue Léo-Saignat, F-33076 Bordeaux cedex, France
| | - A M Schläfli
- Division of Experimental Pathology, Institute of Pathology, University of Bern, Bern, Switzerland
| | - D Brigger
- Division of Experimental Pathology, Institute of Pathology, University of Bern, Bern, Switzerland
| | - S Souquere
- UMR 8122, CNRS - IGR - Université Paris-XI, Villejuif, France
| | - G Pierron
- UMR 8122, CNRS - IGR - Université Paris-XI, Villejuif, France
| | - J-M Pasquet
- INSERM U1035, Université Bordeaux, Bordeaux, France
| | - P Soubeyran
- 1] INSERM U916 VINCO, Institut Bergonié, 229, cours de l'Argonne 33076 Bordeaux Cedex, France [2] Université Bordeaux, 146 rue Léo-Saignat, F-33076 Bordeaux cedex, France
| | - J Reiffers
- 1] INSERM U916 VINCO, Institut Bergonié, 229, cours de l'Argonne 33076 Bordeaux Cedex, France [2] Université Bordeaux, 146 rue Léo-Saignat, F-33076 Bordeaux cedex, France
| | - E Ségal-Bendirdjian
- INSERM UMR-S 1007, Cellular Homeostasis and Cancer, Université Paris Descartes, Sorbonne Paris Cité, 45 rue des Saints-Pères, 75006, Paris, France
| | - M P Tschan
- Division of Experimental Pathology, Institute of Pathology, University of Bern, Bern, Switzerland
| | - M Djavaheri-Mergny
- 1] INSERM U916 VINCO, Institut Bergonié, 229, cours de l'Argonne 33076 Bordeaux Cedex, France [2] Université Bordeaux, 146 rue Léo-Saignat, F-33076 Bordeaux cedex, France
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Affiliation(s)
| | - E Richard
- Laboratory Frank Duncombe; Caen France
| | - A Audrey
- Université de Liège; Liège Belgium
| | - T Art
- Université de Liège; Liège Belgium
| | - P Lekeux
- Université de Liège; Liège Belgium
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48
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Brasil S, Richard E, Jorge-Finnigan A, Leal F, Merinero B, Banerjee R, Desviat LR, Ugarte M, Pérez B. Methylmalonic aciduria cblB type: characterization of two novel mutations and mitochondrial dysfunction studies. Clin Genet 2014; 87:576-81. [PMID: 24813872 DOI: 10.1111/cge.12426] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [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: 02/07/2014] [Revised: 05/08/2014] [Accepted: 05/08/2014] [Indexed: 10/25/2022]
Abstract
Methylmalonic aciduria (MMA) cblB type is caused by mutations in the MMAB gene, which codes for the enzyme adenosine triphosphate (ATP): cobalamin adenosyltransferase (ATR). This study reports differences in the metabolic and disease outcomes of two pairs of siblings with MMA cblB type, respectively harbouring the novel changes p.His183Leu/p.Arg190dup (P1 and P2) and the previously described mutations p.Ile96Thr/p.Ser174fs (P3 and P4). Expression analysis showed p.His183Leu and p.Arg190dup to be destabilizing mutations. Both were associated with reduced ATR stability and a shorter half-life than wild-type ATR. Analysis of several parameters related to oxidative stress and mitochondrial function showed an increase in reactive oxygen species (ROS) content, a decrease in mitochondrial respiration and changes in mitochondria morphology and structure in patient-derived fibroblasts compared to control cells. The impairment in energy production and the presence of oxidative stress and fission of the mitochondrial reticulum suggested mitochondrial dysfunction in cblB patients' fibroblasts. The recovery of mitochondrial function should be a goal in efforts to improve the clinical outcome of MMA cblB type.
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Affiliation(s)
- S Brasil
- Centro de Diagnóstico de Enfermedades Moleculares, Centro de Biología Molecular-SO UAM-CSIC, Universidad Autónoma de Madrid, Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Madrid, Spain; Instituto de Investigación Biomédica, IDIPaz, Madrid, Spain; Metabolism & Genetics Group, Research Institute for Medicines and Pharmaceuticals Sciences (iMed.UL), Faculty of Pharmacy, University of Lisbon, Lisbon, Portugal
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49
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Depecker M, Leleu C, Richard E, Couroucé-Malblanc A. Longitudinal Follow-Up of Bronchoalveolar Lavage Cytology in Standardbred Racehorses. Equine Vet J 2014. [DOI: 10.1111/evj.12267_64] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | - C Leleu
- Equitest; Grez en Bouère France
| | - E Richard
- Frank Duncombe Laboratory; Caen France
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50
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Spiers JA, Williams B, Gibson B, Kabotoff W, McIlwraith D, Sculley A, Richard E. Graduate nurses' learning trajectories and experiences of problem based learning: a focused ethnography study. Int J Nurs Stud 2014; 51:1462-71. [PMID: 24690266 DOI: 10.1016/j.ijnurstu.2014.03.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2013] [Revised: 12/06/2013] [Accepted: 03/05/2014] [Indexed: 11/16/2022]
Abstract
BACKGROUND Problem-based learning seeks to foster active, collaborative and self directed learning. It is increasingly utilized in health professional education; however, it is difficult to ascertain effectiveness. Empirically, student satisfaction does not match academic achievement but the reasons for this are unclear. OBJECTIVE To explore the experience trajectories and satisfaction of graduates who had completed an undergraduate problem-based learning nursing program. DESIGN AND METHODS Qualitative focused ethnography using individual and group semi-structured interviews. Categories and themes were identified using inductive constant comparison. A comparative matrix analysis of differing levels of the two core processes illuminated specific experience profiles. PARTICIPANTS AND SETTING Forty five program graduates who had graduated between one and nine years previously from a Western Canadian program offered at four academic sites. The sample was mostly female (n=37), aged 26-30 years (n=23) and graduated 5-8 years previously (n=20). RESULTS Levels of satisfaction with the program varied markedly. Two core processes contributed to this: "understanding" and "valuing" problem-based learning. Specific experience profiles included: "Happy as fish in water" which represents those who understood and valued the approach, and flourished; "I'll do it but I won't like it" reflects those who understood and could adjust to the academic context but did not particularly value it; "I just want to be a nurse" characterized those who consistently disliked and resisted the process but endured in order to graduate. Each profile was characterized by attitudes, intentions, learning preferences and program satisfaction. CONCLUSIONS We theorize an underlying mechanism explaining these diverse levels of satisfaction are differing orientations to studying. This approach to understanding how students typically approach learning is strongly linked to perceptions of academic quality and program satisfaction in higher education research, although it has been neglected in nursing problem-based learning research. Orientations to studying include reproductive surface learning, deep learning for understanding and meaning, and strategic approaches to maximize desired objectives. These orientations are congruent with the descriptive typologies developed in this research. This provides an effective explanation as to why some students adapt easily and flourish in problem-based learning contexts, while others continually struggle to adapt. Further research is needed to determine the relationship between deep, surface, and strategic orientations to study and student satisfaction in nursing programs.
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Affiliation(s)
- J A Spiers
- Faculty of Nursing, University of Alberta, Edmonton, Alberta, Canada.
| | - B Williams
- Faculty of Nursing, University of Alberta, Edmonton, Alberta, Canada
| | - B Gibson
- Faculty of Nursing, University of Alberta, Edmonton, Alberta, Canada
| | - W Kabotoff
- Faculty of Nursing, University of Alberta, Edmonton, Alberta, Canada
| | - D McIlwraith
- Faculty of Nursing, University of Alberta, Edmonton, Alberta, Canada
| | - A Sculley
- Faculty of Nursing, University of Alberta, Edmonton, Alberta, Canada
| | - E Richard
- Department of Nursing Education and Health Studies, Grande Prairie Regional College, Alberta, Canada
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