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Vié C, Govindin-Ramassamy K, Thellier D, Labrosse D, Montagni I. Effectiveness of digital games promoting young people's mental health: A review of reviews. Digit Health 2024; 10:20552076231220814. [PMID: 38323239 PMCID: PMC10845979 DOI: 10.1177/20552076231220814] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Accepted: 11/28/2023] [Indexed: 02/08/2024] Open
Abstract
Objectives Digital games are a popular form of entertainment for youth. They are often used as a therapy for psychological problems, a mental health promotion intervention, and a preventative measure. Systematic reviews and meta-analyses have been conducted to assess the effectiveness of mental health-related digital games. However, a synthesis considering all evaluation results to inform their development is missing. Methods We performed a review of reviews to synthetize results of previous research to describe the impact of digital games on the mental health of young people aged <30 years old. We considered systematic reviews and meta-analyses published between 2012 and 2022. Searches were conducted in Scopus, Google Scholar, Pubmed, and Cochrane library systematic reviews (CENTRAL) during October 2023. Results Our final selection included 10 systematic reviews and meta-analyses on interventions targeting youth of both sexes aged 2-29 years old across the world. In total, 218 interventions were identified. Selected articles reported different types of games, e.g., active and non-active video games, virtual reality games, serious games. Not all digital games were conscientiously evaluated, but, in general, their impact on mental health was positive. Regarding the quality, 5 studies were of high quality, 3 of moderate quality and 2 of low quality. Conclusions Overall, elements of gamification were well-accepted, but they lacked assessment through rigorous experimental conditions. Digital games for mental health are promising, but in order to be consistently effective in promoting young people's mental health and prevent psychological diseases, they should present specific features.
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Affiliation(s)
- Clara Vié
- Bordeaux Population Health Research Center, University of Bordeaux, Inserm, Bordeaux, France
| | | | | | | | - Ilaria Montagni
- Bordeaux Population Health Research Center, University of Bordeaux, Inserm, Bordeaux, France
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El Haddad R, Meneton P, Melchior M, Wiernik E, Zins M, Airagnes G. Changes in alcohol consumption according to the duration of unemployment: prospective findings from the French CONSTANCES cohort. BMJ Open 2023; 13:e077255. [PMID: 37984957 PMCID: PMC10660887 DOI: 10.1136/bmjopen-2023-077255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 10/19/2023] [Indexed: 11/22/2023] Open
Abstract
OBJECTIVES To prospectively examine the association between the duration of unemployment among job seekers and changes in alcohol use in a year. DESIGN A prospective study. SETTING French population-based CONSTANCES cohort. PARTICIPANTS We selected 84 943 participants from the CONSTANCES cohort included between 2012 and 2019 who, at baseline and 1-year follow-up, were either employed or job-seeking. OUTCOME MEASURES Multinomial logistic regression models computed the odds of reporting continuous no alcohol use, at-risk alcohol use, increased or decreased alcohol use compared with being continuously at low risk and according to employment status. The duration of unemployment was self-reported at baseline; thus, the employment status at 1-year follow-up was categorised as follows: (1) employed, (2) return to employment since less than a year, (3) unemployed for less than 1 year, (4) unemployed for 1 to 3 years and (5) unemployed for 3 years or more. Analyses were adjusted for age, gender, education, household monthly income, marital status, self-rated health, smoking status and depressive state. RESULTS Compared with being continuously at low risk (ie, ≤10 drinks per week), the unemployment categories were associated in a dose-dependent manner with an increased likelihood of reporting continuous no alcohol use (OR: 1.74-2.50), being continuously at-risk (OR: 1.21-1.83), experiencing an increase in alcohol use (OR: 1.21-1.51) and a decrease in alcohol use (OR: 1.17-1.84). CONCLUSION Although our results suggested an association between the duration of unemployment and a decrease in alcohol use, they also revealed associations between at-risk and increased alcohol use. Thus, screening for alcohol use among unemployed job seekers must be reinforced, especially among those with long-term unemployment.
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Affiliation(s)
- Rita El Haddad
- Population-based Epidemiological Cohorts Unit, UMS011, INSERM, Villejuif, France
| | - Pierre Meneton
- INSERM U1142 LIMICS, UMRS 1142, Sorbonne Universities, UPMC University of Paris 06, University of Paris 13, Paris, France
| | - Maria Melchior
- Institut Pierre Louis d'Épidémiologie et de Santé Publique IPLESP, INSERM UMR_S 1136, Sorbonne Université, Paris, France
| | - Emmanuel Wiernik
- Population-based Epidemiological Cohorts Unit, UMS011, INSERM, Villejuif, France
| | - Marie Zins
- Population-based Epidemiological Cohorts Unit, UMS011, INSERM, Villejuif, France
| | - Guillaume Airagnes
- Centre Ambulatoire d'Addictologie, AP-HP, Centre-Université Paris Cité, Paris, France
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Abtout A, Reingruber J. Analysis of dim-light responses in rod and cone photoreceptors with altered calcium kinetics. J Math Biol 2023; 87:69. [PMID: 37823947 PMCID: PMC10570263 DOI: 10.1007/s00285-023-02005-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 09/12/2023] [Accepted: 09/25/2023] [Indexed: 10/13/2023]
Abstract
Rod and cone photoreceptors in the retina of vertebrates are the primary sensory neurons underlying vision. They convert light into an electrical current using a signal transduction pathway that depends on Ca[Formula: see text] feedback. It is known that manipulating the Ca[Formula: see text] kinetics affects the response shape and the photoreceptor sensitivity, but a precise quantification of these effects remains unclear. We have approached this task in mouse retina by combining numerical simulations with mathematical analysis. We consider a parsimonious phototransduction model that incorporates negative Ca[Formula: see text] feedback onto the synthesis of cyclic GMP, and fast buffering reactions to alter the Ca[Formula: see text] kinetics. We derive analytic results for the photoreceptor functioning in sufficiently dim light conditions depending on the photoreceptor type. We exploit these results to obtain conceptual and quantitative insight into how response waveform and amplitude depend on the underlying biophysical processes and the Ca[Formula: see text] feedback. With a low amount of buffering, the Ca[Formula: see text] concentration changes in proportion to the current, and responses to flashes of light are monophasic. With more buffering, the change in the Ca[Formula: see text] concentration becomes delayed with respect to the current, which gives rise to a damped oscillation and a biphasic waveform. This shows that biphasic responses are not necessarily a manifestation of slow buffering reactions. We obtain analytic approximations for the peak flash amplitude as a function of the light intensity, which shows how the photoreceptor sensitivity depends on the biophysical parameters. Finally, we study how changing the extracellular Ca[Formula: see text] concentration affects the response.
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Affiliation(s)
- Annia Abtout
- Institute of Biology, Ecole Normale Supérieure, Paris, France
| | - Jürgen Reingruber
- Institute of Biology, Ecole Normale Supérieure, Paris, France.
- INSERM, U1024, Paris, France.
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Hu Y, Picher M, Palluel M, Daro N, Freysz E, Stoleriu L, Enachescu C, Chastanet G, Banhart F. Laser-Driven Transient Phase Oscillations in Individual Spin Crossover Particles. Small 2023; 19:e2303701. [PMID: 37246252 DOI: 10.1002/smll.202303701] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Indexed: 05/30/2023]
Abstract
An unusual expansion dynamics of individual spin crossover nanoparticles is studied by ultrafast transmission electron microscopy. After exposure to nanosecond laser pulses, the particles exhibit considerable length oscillations during and after their expansion. The vibration period of 50-100 ns is of the same order of magnitude as the time that the particles need for a transition from the low-spin to the high-spin state. The observations are explained in Monte Carlo calculations using a model where elastic and thermal coupling between the molecules within a crystalline spin crossover particle govern the phase transition between the two spin states. The experimentally observed length oscillations are in agreement with the calculations, and it is shown that the system undergoes repeated transitions between the two spin states until relaxation in the high-spin state occurs due to energy dissipation. Spin crossover particles are therefore a unique system where a resonant transition between two phases occurs in a phase transformation of first order.
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Affiliation(s)
- Yaowei Hu
- Institut de Physique et Chimie des Matériaux UMR 7504, Université de Strasbourg & CNRS, Strasbourg, 67034, France
| | - Matthieu Picher
- Institut de Physique et Chimie des Matériaux UMR 7504, Université de Strasbourg & CNRS, Strasbourg, 67034, France
| | - Marlène Palluel
- Université de Bordeaux, CNRS, Bordeaux INP (ICMCB-UMR 5026), Pessac, 33600, France
| | - Nathalie Daro
- Université de Bordeaux, CNRS, Bordeaux INP (ICMCB-UMR 5026), Pessac, 33600, France
| | - Eric Freysz
- Université de Bordeaux, CNRS UMR 5798, LOMA, Talence cedex, 33405, France
| | - Laurentiu Stoleriu
- Faculty of Physics, Alexandru Ioan Cuza University, Iasi, 700506, Romania
| | - Cristian Enachescu
- Faculty of Physics, Alexandru Ioan Cuza University, Iasi, 700506, Romania
| | - Guillaume Chastanet
- Université de Bordeaux, CNRS, Bordeaux INP (ICMCB-UMR 5026), Pessac, 33600, France
| | - Florian Banhart
- Institut de Physique et Chimie des Matériaux UMR 7504, Université de Strasbourg & CNRS, Strasbourg, 67034, France
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Toelzer C, Gupta K, Yadav SKN, Hodgson L, Williamson MK, Buzas D, Borucu U, Powers K, Stenner R, Vasileiou K, Garzoni F, Fitzgerald D, Payré C, Gautam G, Lambeau G, Davidson AD, Verkade P, Frank M, Berger I, Schaffitzel C. The free fatty acid-binding pocket is a conserved hallmark in pathogenic β-coronavirus spike proteins from SARS-CoV to Omicron. Sci Adv 2022; 8:eadc9179. [PMID: 36417532 PMCID: PMC9683698 DOI: 10.1126/sciadv.adc9179] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Accepted: 10/19/2022] [Indexed: 06/01/2023]
Abstract
As coronavirus disease 2019 (COVID-19) persists, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants of concern (VOCs) emerge, accumulating spike (S) glycoprotein mutations. S receptor binding domain (RBD) comprises a free fatty acid (FFA)-binding pocket. FFA binding stabilizes a locked S conformation, interfering with virus infectivity. We provide evidence that the pocket is conserved in pathogenic β-coronaviruses (β-CoVs) infecting humans. SARS-CoV, MERS-CoV, SARS-CoV-2, and VOCs bind the essential FFA linoleic acid (LA), while binding is abolished by one mutation in common cold-causing HCoV-HKU1. In the SARS-CoV S structure, LA stabilizes the locked conformation, while the open, infectious conformation is devoid of LA. Electron tomography of SARS-CoV-2-infected cells reveals that LA treatment inhibits viral replication, resulting in fewer deformed virions. Our results establish FFA binding as a hallmark of pathogenic β-CoV infection and replication, setting the stage for FFA-based antiviral strategies to overcome COVID-19.
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Affiliation(s)
- Christine Toelzer
- School of Biochemistry, University of Bristol, 1 Tankard’s Close, Bristol BS8 1TD, UK
- Bristol Synthetic Biology Centre BrisSynBio, 24 Tyndall Ave, Bristol BS8 1TQ, UK
| | - Kapil Gupta
- School of Biochemistry, University of Bristol, 1 Tankard’s Close, Bristol BS8 1TD, UK
- Bristol Synthetic Biology Centre BrisSynBio, 24 Tyndall Ave, Bristol BS8 1TQ, UK
- Imophoron Ltd., St. Philips Central, Albert Rd, Bristol BS2 0XJ, UK
| | - Sathish K. N. Yadav
- School of Biochemistry, University of Bristol, 1 Tankard’s Close, Bristol BS8 1TD, UK
- Bristol Synthetic Biology Centre BrisSynBio, 24 Tyndall Ave, Bristol BS8 1TQ, UK
| | - Lorna Hodgson
- School of Biochemistry, University of Bristol, 1 Tankard’s Close, Bristol BS8 1TD, UK
- Bristol Synthetic Biology Centre BrisSynBio, 24 Tyndall Ave, Bristol BS8 1TQ, UK
| | | | - Dora Buzas
- School of Biochemistry, University of Bristol, 1 Tankard’s Close, Bristol BS8 1TD, UK
- Bristol Synthetic Biology Centre BrisSynBio, 24 Tyndall Ave, Bristol BS8 1TQ, UK
- Max Planck Bristol Centre for Minimal Biology, Cantock’s Close, Bristol BS8 1TS, UK
| | - Ufuk Borucu
- School of Biochemistry, University of Bristol, 1 Tankard’s Close, Bristol BS8 1TD, UK
- Bristol Synthetic Biology Centre BrisSynBio, 24 Tyndall Ave, Bristol BS8 1TQ, UK
| | - Kyle Powers
- School of Biochemistry, University of Bristol, 1 Tankard’s Close, Bristol BS8 1TD, UK
- Bristol Synthetic Biology Centre BrisSynBio, 24 Tyndall Ave, Bristol BS8 1TQ, UK
| | - Richard Stenner
- School of Biochemistry, University of Bristol, 1 Tankard’s Close, Bristol BS8 1TD, UK
- Bristol Synthetic Biology Centre BrisSynBio, 24 Tyndall Ave, Bristol BS8 1TQ, UK
| | - Kate Vasileiou
- School of Biochemistry, University of Bristol, 1 Tankard’s Close, Bristol BS8 1TD, UK
- Bristol Synthetic Biology Centre BrisSynBio, 24 Tyndall Ave, Bristol BS8 1TQ, UK
| | - Frederic Garzoni
- Imophoron Ltd., St. Philips Central, Albert Rd, Bristol BS2 0XJ, UK
| | - Daniel Fitzgerald
- Halo Therapeutics Ltd., St. Philips Central, Albert Rd, Bristol BS2 0XJ, UK
| | - Christine Payré
- Université Côte d’Azur, Centre National de la Recherche Scientifique, Institut de Pharmacologie Moléculaire et Cellulaire, Valbonne Sophia Antipolis, France
| | - Gunjan Gautam
- School of Biochemistry, University of Bristol, 1 Tankard’s Close, Bristol BS8 1TD, UK
- Bristol Synthetic Biology Centre BrisSynBio, 24 Tyndall Ave, Bristol BS8 1TQ, UK
| | - Gérard Lambeau
- Université Côte d’Azur, Centre National de la Recherche Scientifique, Institut de Pharmacologie Moléculaire et Cellulaire, Valbonne Sophia Antipolis, France
| | - Andrew D. Davidson
- Cellular and Molecular Medicine, University of Bristol, University Walk, Bristol BS8 1TD, UK
| | - Paul Verkade
- School of Biochemistry, University of Bristol, 1 Tankard’s Close, Bristol BS8 1TD, UK
- Bristol Synthetic Biology Centre BrisSynBio, 24 Tyndall Ave, Bristol BS8 1TQ, UK
| | | | - Imre Berger
- School of Biochemistry, University of Bristol, 1 Tankard’s Close, Bristol BS8 1TD, UK
- Bristol Synthetic Biology Centre BrisSynBio, 24 Tyndall Ave, Bristol BS8 1TQ, UK
- Max Planck Bristol Centre for Minimal Biology, Cantock’s Close, Bristol BS8 1TS, UK
- Halo Therapeutics Ltd., St. Philips Central, Albert Rd, Bristol BS2 0XJ, UK
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, UK
| | - Christiane Schaffitzel
- School of Biochemistry, University of Bristol, 1 Tankard’s Close, Bristol BS8 1TD, UK
- Bristol Synthetic Biology Centre BrisSynBio, 24 Tyndall Ave, Bristol BS8 1TQ, UK
- Halo Therapeutics Ltd., St. Philips Central, Albert Rd, Bristol BS2 0XJ, UK
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Ben Chehida S, Filloux D, Fernandez E, Moubset O, Hoareau M, Julian C, Blondin L, Lett JM, Roumagnac P, Lefeuvre P. Nanopore Sequencing Is a Credible Alternative to Recover Complete Genomes of Geminiviruses. Microorganisms 2021; 9:903. [PMID: 33922452 PMCID: PMC8147096 DOI: 10.3390/microorganisms9050903] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 04/21/2021] [Accepted: 04/21/2021] [Indexed: 01/23/2023] Open
Abstract
Next-generation sequencing (NGS), through the implementation of metagenomic protocols, has led to the discovery of thousands of new viruses in the last decade. Nevertheless, these protocols are still laborious and costly to implement, and the technique has not yet become routine for everyday virus characterization. Within the context of CRESS DNA virus studies, we implemented two alternative long-read NGS protocols, one that is agnostic to the sequence (without a priori knowledge of the viral genome) and the other that use specific primers to target a virus (with a priori). Agnostic and specific long read NGS-based assembled genomes of two capulavirus strains were compared to those obtained using the gold standard technique of Sanger sequencing. Both protocols allowed the detection and accurate full genome characterization of both strains. Globally, the assembled genomes were very similar (99.5-99.7% identity) to the Sanger sequences consensus, but differences in the homopolymeric tracks of these sequences indicated a specific lack of accuracy of the long reads NGS approach that has yet to be improved. Nevertheless, the use of the bench-top sequencer has proven to be a credible alternative in the context of CRESS DNA virus study and could offer a new range of applications not previously accessible.
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Affiliation(s)
- Selim Ben Chehida
- CIRAD, UMR PVBMT, F-97410 St Pierre, La Réunion, France; (S.B.C.); (M.H.); (J.-M.L.)
| | - Denis Filloux
- CIRAD, PHIM, F-34398 Montpellier, France; (D.F.); (E.F.); (O.M.); (C.J.); (L.B.); (P.R.)
- PHIM Plant Health Institute, University Montpellier, CIRAD, INRAE, Institut Agro, IRD, F-34398 Montpellier, France
| | - Emmanuel Fernandez
- CIRAD, PHIM, F-34398 Montpellier, France; (D.F.); (E.F.); (O.M.); (C.J.); (L.B.); (P.R.)
- PHIM Plant Health Institute, University Montpellier, CIRAD, INRAE, Institut Agro, IRD, F-34398 Montpellier, France
| | - Oumaima Moubset
- CIRAD, PHIM, F-34398 Montpellier, France; (D.F.); (E.F.); (O.M.); (C.J.); (L.B.); (P.R.)
- PHIM Plant Health Institute, University Montpellier, CIRAD, INRAE, Institut Agro, IRD, F-34398 Montpellier, France
| | - Murielle Hoareau
- CIRAD, UMR PVBMT, F-97410 St Pierre, La Réunion, France; (S.B.C.); (M.H.); (J.-M.L.)
| | - Charlotte Julian
- CIRAD, PHIM, F-34398 Montpellier, France; (D.F.); (E.F.); (O.M.); (C.J.); (L.B.); (P.R.)
- PHIM Plant Health Institute, University Montpellier, CIRAD, INRAE, Institut Agro, IRD, F-34398 Montpellier, France
| | - Laurence Blondin
- CIRAD, PHIM, F-34398 Montpellier, France; (D.F.); (E.F.); (O.M.); (C.J.); (L.B.); (P.R.)
- PHIM Plant Health Institute, University Montpellier, CIRAD, INRAE, Institut Agro, IRD, F-34398 Montpellier, France
| | - Jean-Michel Lett
- CIRAD, UMR PVBMT, F-97410 St Pierre, La Réunion, France; (S.B.C.); (M.H.); (J.-M.L.)
| | - Philippe Roumagnac
- CIRAD, PHIM, F-34398 Montpellier, France; (D.F.); (E.F.); (O.M.); (C.J.); (L.B.); (P.R.)
- PHIM Plant Health Institute, University Montpellier, CIRAD, INRAE, Institut Agro, IRD, F-34398 Montpellier, France
| | - Pierre Lefeuvre
- CIRAD, UMR PVBMT, F-97410 St Pierre, La Réunion, France; (S.B.C.); (M.H.); (J.-M.L.)
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Annane D, Pirracchio R, Billot L, Waschka A, Chevret S, Cohen J, Finfer S, Gordon A, Hammond N, Myburgh J, Venkatesh B, Delaney A. Effects of low-dose hydrocortisone and hydrocortisone plus fludrocortisone in adults with septic shock: a protocol for a systematic review and meta-analysis of individual participant data. BMJ Open 2020; 10:e040931. [PMID: 33268422 PMCID: PMC7713227 DOI: 10.1136/bmjopen-2020-040931] [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] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
INTRODUCTION The benefits and risks of low-dose hydrocortisone in patients with septic shock have been investigated in numerous randomised controlled trials and trial-level meta-analyses. Yet, the routine use of this treatment remains controversial. To overcome the limitations of previous meta-analyses inherent to the use of aggregate data, we will perform an individual patient data meta-analysis (IPDMA) on the effect of hydrocortisone with or without fludrocortisone compared with placebo or usual care on 90-day mortality and other outcomes in patients with septic shock. METHODS AND ANALYSIS To assess the benefits and risks of hydrocortisone, with or without fludrocortisone for adults with septic shock, we will search major electronic databases from inception to September 2020 (Cochrane Central Register of Controlled Trials, MEDLINE, EMBASE and Latin American Caribbean Health Sciences Literature), complimented by a search for unpublished trials. The primary analysis will compare hydrocortisone with or without fludrocortisone to placebo or no treatment in adult patients with septic shock. Secondary analyses will compare hydrocortisone to placebo (or usual care), hydrocortisone plus fludrocortisone to placebo (or usual care), and hydrocortisone versus hydrocortisone plus fludrocortisone. The primary outcome will be all cause mortality at 90 days. We will conduct both one-stage IPDMA using mixed-effect models and machine learning with targeted maximum likelihood analyses. We will assess the risk of bias related to unshared data and related to the quality of individual trial. ETHICS AND DISSEMINATION This IPDMA will use existing data from completed randomised clinical trials and will comply with the ethical and regulatory requirements regarding data sharing for each of the component trials. The findings of this study will be submitted for publication in a peer-review journal with straightforward policy for open access. PROSPERO REGISTRATION NUMBER CRD42017062198.
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Affiliation(s)
- Djillali Annane
- School of Medicine, Versailles Saint-Quentin-en-Yvelines University, Versailles, Île-de-France, France
- Universite Paris-Saclay, Saint-Aubin, Île-de-France, France
| | - Romain Pirracchio
- Zuckerberg San Francisco General Hospital and Trauma Center, San Francisco, California, USA
| | - Laurent Billot
- Statistics Division, The George Institute for Global Health, Newtown, New South Wales, Australia
| | - Andre Waschka
- University of California Berkeley, Berkeley, California, USA
| | | | - Jeremy Cohen
- University of Queensland, Brisbane, Queensland, Australia
| | - Simon Finfer
- The George Institute for Global Health, Newtown, New South Wales, Australia
| | - Anthony Gordon
- Section of Anaesthetics, Pain Medicine and Intensive Care, Imperial College London, London, UK
| | - Naomi Hammond
- George Institute for Global Health, Camperdown, New South Wales, Australia
| | - John Myburgh
- St George Clinical School, University of New South Wales, Sydney, New South Wales, Australia
| | | | - Anthony Delaney
- The George Institute for Global Health, Newtown, New South Wales, Australia
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Benakli K, Chen Y, Goodsell MD. Minimal constrained superfields and the Fayet-Iliopoulos model. Eur Phys J C Part Fields 2018; 78:711. [PMID: 30839753 PMCID: PMC6191163 DOI: 10.1140/epjc/s10052-018-6178-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Accepted: 08/22/2018] [Indexed: 06/09/2023]
Abstract
We show how the necessary constraints to project out all the components of a chiral superfield except for some scalar degrees of freedom originate from simple operators in the microscopic theory. This is in particular useful in constructing the simplest models of a goldstone boson/inflaton; or extracting the Standard Model Higgs doublet from a supersymmetric electroweak sector. We use the Fayet-Iliopoulos model as an example of the origin for the supersymmetry breaking. We consider the regime where both gauge symmetry and supersymmetry are spontaneously broken, leaving (in the decoupling limit) the goldstino as the only light mode in this sector. We show in three different ways, both in components and in superspace language, how the nilpotent goldstino superfield emerges. We then use it to write different effective operators and extract some of the consequences for the low energy spectrum.
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Affiliation(s)
- Karim Benakli
- Laboratoire de Physique Théorique et Hautes Energies (LPTHE), UMR 7589, Sorbonne Université et CNRS, 4 Place Jussieu, 75252 Paris Cedex 05, France
| | - Yifan Chen
- Laboratoire de Physique Théorique et Hautes Energies (LPTHE), UMR 7589, Sorbonne Université et CNRS, 4 Place Jussieu, 75252 Paris Cedex 05, France
| | - Mark D. Goodsell
- Laboratoire de Physique Théorique et Hautes Energies (LPTHE), UMR 7589, Sorbonne Université et CNRS, 4 Place Jussieu, 75252 Paris Cedex 05, France
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Benakli K, Goodsell MD, Williamson SL. Higgs alignment from extended supersymmetry. Eur Phys J C Part Fields 2018; 78:658. [PMID: 30197572 PMCID: PMC6113699 DOI: 10.1140/epjc/s10052-018-6125-1] [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] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Accepted: 08/01/2018] [Indexed: 06/08/2023]
Abstract
We consider the effective type-II two-Higgs doublet model originating from Dirac gaugino models with extended supersymmetry in the gauge sector, which is automatically aligned in the simplest realisations. We show that raising the scale at which the extended supersymmetry is manifest and including quantum corrections actually improves the alignment. Using an effective field theory approach including new threshold corrections and two-loop RGEs, plus two-loop corrections to the Higgs mass in the low-energy theory, we study the implications from the Higgs mass and other experimental constraints on the scale of superpartners. We contrast the results of the minimal Dirac gaugino model, where alignment is automatic, with the hMSSM and the MRSSM, where it is not, also providing an hMSSM-inspired analysis for the new models.
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Affiliation(s)
- Karim Benakli
- Laboratoire de Physique Théorique et Hautes Energies (LPTHE), UMR 7589, Sorbonne Université et CNRS, 4 Place Jussieu, 75252 Paris Cedex 05, France
| | - Mark D. Goodsell
- Laboratoire de Physique Théorique et Hautes Energies (LPTHE), UMR 7589, Sorbonne Université et CNRS, 4 Place Jussieu, 75252 Paris Cedex 05, France
| | - Sophie L. Williamson
- Laboratoire de Physique Théorique et Hautes Energies (LPTHE), UMR 7589, Sorbonne Université et CNRS, 4 Place Jussieu, 75252 Paris Cedex 05, France
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Mancini FR, Affret A, Dow C, Balkau B, Bonnet F, Boutron-Ruault MC, Fagherazzi G. Dietary antioxidant capacity and risk of type 2 diabetes in the large prospective E3N-EPIC cohort. Diabetologia 2018; 61:308-316. [PMID: 29119242 DOI: 10.1007/s00125-017-4489-7] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Accepted: 09/28/2017] [Indexed: 01/04/2023]
Abstract
AIMS/HYPOTHESIS Recent evidence suggests that oxidative stress may contribute to the pathogenesis of type 2 diabetes. The diet, and especially fruit and vegetables, contains a variety of compounds with antioxidant activity, which may have cumulative/synergistic antioxidant effects. The total antioxidant capacity, an index derived from dietary intake, is a single estimate of antioxidant capacity from all dietary antioxidants. The main aim of this study was to investigate the relationship between total antioxidant capacity and risk of type 2 diabetes. METHODS Among 64,223 women (mean age 52 ± 7 years) from the French E3N-European Prospective Investigation into Cancer and Nutrition (EPIC) cohort, 1751 women had validated type 2 diabetes during 15 years of follow-up. The total antioxidant capacity was estimated with the ferric ion-reducing antioxidant power (FRAP) method. Adjusted Cox proportional hazards regression models were used to calculate HRs and 95% CIs for the associations between total antioxidant capacity and type 2 diabetes risk, adjusted for potential confounders. RESULTS In multivariable models, higher levels of total antioxidant capacity were associated with a lower risk of type 2 diabetes. Compared with women in the lowest quintile, women in the third, fourth and fifth quintiles for total antioxidant capacity had HRs of 0.74 (95% CI 0.63, 0.86), 0.70 (95% CI 0.59, 0.83) and 0.73 (95% CI 0.60, 0.89), respectively. The inverse association between total antioxidant capacity and risk of type 2 diabetes was linear up to values of 15 mmol/day, after which the effect reached a plateau. CONCLUSIONS/INTERPRETATION Our findings suggest that the total antioxidant capacity may play an important role in reducing the risk of type 2 diabetes in middle-aged women. More studies are warranted to better understand the biological mechanisms underlying this inverse association.
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Affiliation(s)
- Francesca Romana Mancini
- Inserm U1018, Centre for Research in Epidemiology and Population Health (CESP) 'Health across Generations' Team, University Paris-Saclay, University Paris-Sud, Gustave Roussy, Espace Maurice Tubiana, 114 rue Edouard Vaillant, 94805, Villejuif Cedex, France
| | - Aurélie Affret
- Inserm U1018, Centre for Research in Epidemiology and Population Health (CESP) 'Health across Generations' Team, University Paris-Saclay, University Paris-Sud, Gustave Roussy, Espace Maurice Tubiana, 114 rue Edouard Vaillant, 94805, Villejuif Cedex, France
| | - Courtney Dow
- Inserm U1018, Centre for Research in Epidemiology and Population Health (CESP) 'Health across Generations' Team, University Paris-Saclay, University Paris-Sud, Gustave Roussy, Espace Maurice Tubiana, 114 rue Edouard Vaillant, 94805, Villejuif Cedex, France
| | - Beverley Balkau
- Inserm U1018, Centre for Research in Epidemiology and Population Health (CESP) 'Renal and cardiovascular Epidemiology' Team, University Versailles, Saint Quentin, University Paris-Sud, Villejuif, France
| | - Fabrice Bonnet
- Inserm U1018, Centre for Research in Epidemiology and Population Health (CESP) 'Health across Generations' Team, University Paris-Saclay, University Paris-Sud, Gustave Roussy, Espace Maurice Tubiana, 114 rue Edouard Vaillant, 94805, Villejuif Cedex, France
- CHU Rennes, Université de Rennes 1, Department of Endocrinology, Diabetology and Nutrition, Rennes, France
| | - Marie-Christine Boutron-Ruault
- Inserm U1018, Centre for Research in Epidemiology and Population Health (CESP) 'Health across Generations' Team, University Paris-Saclay, University Paris-Sud, Gustave Roussy, Espace Maurice Tubiana, 114 rue Edouard Vaillant, 94805, Villejuif Cedex, France.
| | - Guy Fagherazzi
- Inserm U1018, Centre for Research in Epidemiology and Population Health (CESP) 'Health across Generations' Team, University Paris-Saclay, University Paris-Sud, Gustave Roussy, Espace Maurice Tubiana, 114 rue Edouard Vaillant, 94805, Villejuif Cedex, France
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Tomonaga M, Kumazaki K, Camus F, Nicod S, Pereira C, Matsuzawa T. A horse's eye view: size and shape discrimination compared with other mammals. Biol Lett 2015; 11:20150701. [PMID: 26601679 PMCID: PMC4685539 DOI: 10.1098/rsbl.2015.0701] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2015] [Accepted: 11/03/2015] [Indexed: 11/12/2022] Open
Abstract
Mammals have adapted to a variety of natural environments from underwater to aerial and these different adaptations have affected their specific perceptive and cognitive abilities. This study used a computer-controlled touchscreen system to examine the visual discrimination abilities of horses, particularly regarding size and shape, and compared the results with those from chimpanzee, human and dolphin studies. Horses were able to discriminate a difference of 14% in circle size but showed worse discrimination thresholds than chimpanzees and humans; these differences cannot be explained by visual acuity. Furthermore, the present findings indicate that all species use length cues rather than area cues to discriminate size. In terms of shape discrimination, horses exhibited perceptual similarities among shapes with curvatures, vertical/horizontal lines and diagonal lines, and the relative contributions of each feature to perceptual similarity in horses differed from those for chimpanzees, humans and dolphins. Horses pay more attention to local components than to global shapes.
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Affiliation(s)
- Masaki Tomonaga
- Primate Research Institute, Kyoto University, Inuyama, 484-8506, Japan
| | | | - Florine Camus
- Ecole Nationale Supérieure d'Agronomie et des Industries Alimentaires, 54505, Vandœuvre-lès-Nancy, France
| | - Sophie Nicod
- L'institut du Cheval et de l'Équitation Portugaise, 93600, Aulnay-sous-Bois, France
| | - Carlos Pereira
- L'institut du Cheval et de l'Équitation Portugaise, 93600, Aulnay-sous-Bois, France Institute National de la Recherche Agronomique, 75338, Paris, France Université Paris III Sorbonne Nouvelle, 75231, Paris, France
| | - Tetsuro Matsuzawa
- Primate Research Institute, Kyoto University, Inuyama, 484-8506, Japan
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