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Probst-Hensch N, Imboden M, Jeong A, Keidel D, Vermes T, Witzig M, Cullati S, Tancredi S, Noor N, Rodondi PY, Harju E, Michel G, Frank I, Kahlert C, Cusini A, Rodondi N, Chocano-Bedoya PO, Bardoczi JB, Stuber MJ, Vollrath F, Fehr J, Frei A, Kaufmann M, Geigges M, von Wyl V, Puhan MA, Albanese E, Crivelli L, Lovison GF. Long-term trajectories of densely reported depressive symptoms during an extended period of the COVID-19 pandemic in Switzerland: Social worries matter. Compr Psychiatry 2024; 130:152457. [PMID: 38325041 DOI: 10.1016/j.comppsych.2024.152457] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 01/04/2024] [Accepted: 01/29/2024] [Indexed: 02/09/2024] Open
Abstract
Previous mental health trajectory studies were mostly limited to the months before access to vaccination. They are not informing on whether public mental health has adapted to the pandemic. The aim of this analysis was to 1) investigate trajectories of monthly reported depressive symptoms from July 2020 to December 2021 in Switzerland, 2) compare average growth trajectories across regions with different stringency phases, and 3) explore the relative impact of self-reported worries related to health, economic and social domains as well as socio-economic indicators on growth trajectories. As part of the population-based Corona Immunitas program of regional, but harmonized, adult cohorts studying the pandemic course and impact, participants repeatedly reported online to the DASS-21 instrument on depressive symptomatology. Trajectories of depressive symptoms were estimated using a latent growth model, specified as a generalised linear mixed model. The time effect was modelled parametrically through a polynomial allowing to estimate trajectories for participants' missing time points. In all regions level and shape of the trajectories mirrored those of the KOF Stringency-Plus Index, which quantifies regional Covid-19 policy stringency. The higher level of average depression in trajectories of those expressing specific worries was most noticeable for the social domain. Younger age, female gender, and low household income went along with higher mean depression score trajectories throughout follow-up. Interventions to promote long-term resilience are an important part of pandemic preparedness, given the observed lack of an adaptation in mental health response to the pandemic even after the availability of vaccines in this high-income context.
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Affiliation(s)
- N Probst-Hensch
- Swiss Tropical and Public Health Institute, Allschwil, Switzerland; Department of Public Health, University of Basel, Switzerland.
| | - M Imboden
- Swiss Tropical and Public Health Institute, Allschwil, Switzerland; Department of Public Health, University of Basel, Switzerland
| | - A Jeong
- Swiss Tropical and Public Health Institute, Allschwil, Switzerland; Department of Public Health, University of Basel, Switzerland
| | - D Keidel
- Swiss Tropical and Public Health Institute, Allschwil, Switzerland; Department of Public Health, University of Basel, Switzerland
| | - T Vermes
- Swiss Tropical and Public Health Institute, Allschwil, Switzerland; Department of Public Health, University of Basel, Switzerland
| | - M Witzig
- Swiss Tropical and Public Health Institute, Allschwil, Switzerland; Department of Public Health, University of Basel, Switzerland
| | - S Cullati
- Population Health Laboratory (#PopHealthLab), University of Fribourg, Fribourg, Switzerland; Department of Readaptation and Geriatrics, University of Geneva, Geneva, Switzerland
| | - S Tancredi
- Population Health Laboratory (#PopHealthLab), University of Fribourg, Fribourg, Switzerland
| | - N Noor
- Population Health Laboratory (#PopHealthLab), University of Fribourg, Fribourg, Switzerland
| | - P-Y Rodondi
- Institute of Family Medicine (IMF), University of Fribourg, Fribourg, Switzerland
| | - E Harju
- Faculty of Health Sciences and Medicine, University of Lucerne, Alpenquai 4, 6005 Luzern, Switzerland.; ZHAW Zurich University of Applied Sciences, School of Health Sciences, Winterthur, Switzerland
| | - G Michel
- Faculty of Health Sciences and Medicine, University of Lucerne, Alpenquai 4, 6005 Luzern, Switzerland
| | - I Frank
- Clinical Trial Unit, Cantonal Hospital Luzern, Luzern, Switzerland
| | - C Kahlert
- Department of Infectious Diseases and Hospital Epidemiology, Cantonal Hospital St. Gallen, St. Gallen, Switzerland; Infectious Diseases and Hospital Epidemiology, Children's Hospital of Eastern Switzerland, St. Gallen, Switzerland
| | - A Cusini
- Division of Infectious Diseases, Cantonal Hospital of Grisons, Chur, Switzerland
| | - N Rodondi
- Institute of Primary Health Care (BIHAM), University of Bern, Bern, Switzerland; Department of General Internal Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - P O Chocano-Bedoya
- Institute of Primary Health Care (BIHAM), University of Bern, Bern, Switzerland
| | - J B Bardoczi
- Institute of Primary Health Care (BIHAM), University of Bern, Bern, Switzerland; Department of General Internal Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - M J Stuber
- Institute of Primary Health Care (BIHAM), University of Bern, Bern, Switzerland; Department of General Internal Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - F Vollrath
- Corona Immunitas Program Management Group, Swiss School of Public Health, Zurich, Switzerland
| | - J Fehr
- Epidemiology, Biostatistics and Prevention Institute, Zurich, Switzerland
| | - A Frei
- Epidemiology, Biostatistics and Prevention Institute, Zurich, Switzerland
| | - M Kaufmann
- Epidemiology, Biostatistics and Prevention Institute, Zurich, Switzerland
| | - M Geigges
- Epidemiology, Biostatistics and Prevention Institute, Zurich, Switzerland
| | - V von Wyl
- Institute for Implementation Science in Health Care, University of Zurich, Zurich, Switzerland
| | - M A Puhan
- Epidemiology, Biostatistics and Prevention Institute, Zurich, Switzerland
| | - E Albanese
- Institute of Public Health, Faculty of BioMedicine, Università Della Svizzera Italiana, Lugano, Switzerland
| | - L Crivelli
- Institute of Public Health, Faculty of BioMedicine, Università Della Svizzera Italiana, Lugano, Switzerland; Department of Business Economics, Health and Social Care, University of Applied Sciences and Arts of Southern Switzerland, Lugano, Switzerland
| | - G F Lovison
- Swiss Tropical and Public Health Institute, Allschwil, Switzerland; Department of Public Health, University of Basel, Switzerland
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Legendre M, Morin J, Cuadrado J, Côté M, Michel G, Bégin C. Muscle dysmorphia from an addictive perspective: Validation of the Addiction to Body Image Inventory (ABII). Encephale 2024; 50:20-25. [PMID: 36528392 DOI: 10.1016/j.encep.2022.10.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 10/11/2022] [Accepted: 10/15/2022] [Indexed: 12/23/2022]
Abstract
OBJECTIVES Muscle dysmorphia (MD) is a disorder affecting mainly men and is characterized by significant dissatisfaction with muscles. The idea that MD could represent an addiction has been theoretically discussed, but no empirical data are available. Based on Foster et al. (2015) framework, the Addiction to Body Image Inventory (ABII) was developed. This study aims to validate the ABII and to evaluate its capacity to capture MD severity. METHODS A first community sample of 466 participants was recruited and completed the ABII and questionnaires on MD and body esteem. A second sample of 47 men at risk of MD was recruited mostly in gyms and completed the ABII and questionnaires on MD, eating and psychological symptoms. RESULTS With the community sample, the results showed that the ABII had a valid factorial structure, good internal consistency, and good convergent validity. With the sample of men at risk of MD, the results showed that the ABII had good convergent validity with MD and eating symptoms but not with psychological symptoms. The results of a regression model showed that the ABII explained 12% of the MD variance. CONCLUSIONS This study brings the first measure of addiction to body image and suggests that MD must be understood as a complex phenomenon including eating symptoms and addictive tendencies.
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Affiliation(s)
- M Legendre
- School of Psychology, Pavillon Félix-Antoine-Savard, Laval University, 2325, rue des Bibliothèques, Quebec (QC), G1V 0A6, Canada
| | - J Morin
- School of Psychology, Pavillon Félix-Antoine-Savard, Laval University, 2325, rue des Bibliothèques, Quebec (QC), G1V 0A6, Canada
| | - J Cuadrado
- Équipe Healthy, Inserm U1219, Bordeaux Population Health Research Center, Université de Bordeaux, 3ter, place de la victoire, 33000 Bordeaux, France
| | - M Côté
- School of Psychology, Pavillon Félix-Antoine-Savard, Laval University, 2325, rue des Bibliothèques, Quebec (QC), G1V 0A6, Canada
| | - G Michel
- Équipe Healthy, Inserm U1219, Bordeaux Population Health Research Center, Université de Bordeaux, 3ter, place de la victoire, 33000 Bordeaux, France
| | - C Bégin
- School of Psychology, Pavillon Félix-Antoine-Savard, Laval University, 2325, rue des Bibliothèques, Quebec (QC), G1V 0A6, Canada. %20
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Giorgiutti S, Ballonzoli L, Michel G, Eischen A, Toussaint E, Nicolae A, Gaucher D, Poindron V. Masquerade syndrome: Retinal biopsy to diagnose primary intraocular lymphoma. J Fr Ophtalmol 2023; 46:996-997. [PMID: 37085372 DOI: 10.1016/j.jfo.2023.01.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 01/19/2023] [Indexed: 04/23/2023]
Affiliation(s)
- S Giorgiutti
- Service d'immunologie clinique et médecine interne, centre de références des maladies auto-immunes et systémiques rares (CNR RESO), hôpitaux universitaires de Strasbourg, 1, place de l'hôpital, 67091 Strasbourg, France.
| | - L Ballonzoli
- Service d'ophtalmologie, hôpitaux universitaires de Strasbourg, 1, place de l'hôpital, 67091 Strasbourg, France
| | - G Michel
- Cabinet d'ophthalmologie, 6, rue de l'église, 67000 Strasbourg, France
| | - A Eischen
- Laboratoire d'hématologie, hôpitaux universitaires de Strasbourg, 1, place de l'hôpital, 67091 Strasbourg, France
| | - E Toussaint
- Service d'hématologie, institut de cancérologie Strasbourg Europe, 17, rue Albert-Calmette, 67200 Strasbourg, France
| | - A Nicolae
- Laboratoire de pathologie, hôpitaux universitaires de Strasbourg, 1, place de l'hôpital, 67091 Strasbourg, France
| | - D Gaucher
- Service d'ophtalmologie, hôpitaux universitaires de Strasbourg, 1, place de l'hôpital, 67091 Strasbourg, France
| | - V Poindron
- Service d'immunologie clinique et médecine interne, centre de références des maladies auto-immunes et systémiques rares (CNR RESO), hôpitaux universitaires de Strasbourg, 1, place de l'hôpital, 67091 Strasbourg, France
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Boumghit Y, Boucher S, Godey B, Michel G, Bakhos D. Speech reception after cochlear implantation for Cogan's syndrome: Case series following CARE guidelines. Eur Ann Otorhinolaryngol Head Neck Dis 2023; 140:235-238. [PMID: 37479606 DOI: 10.1016/j.anorl.2023.06.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/23/2023]
Abstract
INTRODUCTION Cogan's syndrome is a rare form of vasculitis mainly affecting young subjects of whatever gender, associating cochleovestibular and ophthalmological damage. Despite medical treatment, auditory prognosis is uncertain, with 50-60% of patients showing irreversible severe to profound hearing loss, thus being candidates for cochlear implantation. Following CARE guidelines, we report 10 cases of cochlear implantation in Cogan's syndrome, with assessment of speech reception threshold and maximum intelligibility after a minimum 1 year's experience with the implant. CASE SERIES Ten patients from 4 centers received cochlear implants (14 implants) for Cogan's syndrome between 2005 and 2020. After 1 year's experience, there was significant improvement in speech reception threshold (P=0.0002) and maximum intelligibility (P=0.0002). CONCLUSION-DISCUSSION Audiovestibular signs associated with ophthalmological manifestations should suggest Cogan's syndrome. Hearing impairment is usually irreversible. Cochlear implantation may be necessary and improves hearing performance.
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Affiliation(s)
- Y Boumghit
- Service ORL et chirurgie cervico-faciale, CHRU de Tours, 2, boulevard Tonnellé, 37044 Tours, France.
| | - S Boucher
- Service ORL et chirurgie cervico-faciale, CHU d'Angers, 4, rue Larrey, 49000 Angers, France
| | - B Godey
- Service ORL et chirurgie cervico-faciale, CHU de Rennes, 2, rue Henri-le-Guilloux, 35000 Rennes, France
| | - G Michel
- Service ORL et chirurgie cervico-faciale, CHU de Nantes, 1, place Alexis-Ricordeau, 44093 Nantes, France
| | - D Bakhos
- Service ORL et chirurgie cervico-faciale, CHRU de Tours, 2, boulevard Tonnellé, 37044 Tours, France; Inserm U1253, iBrain, université de Tours, 10, boulevard Tonnellé, 37000 Tours, France; House Institute Foundation, Los Angeles, United States
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Cuadrado J, Hanne-Poujade S, Michel G. Adaptation and validation of the muscle dysmorphic disorder inventory in a population of French athletes (MDDI-Fr). Encephale 2023:S0013-7006(23)00112-4. [PMID: 37604719 DOI: 10.1016/j.encep.2023.05.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Revised: 05/04/2023] [Accepted: 05/05/2023] [Indexed: 08/23/2023]
Abstract
INTRODUCTION Muscle dysmorphia, a theme mainly investigated by Anglo-Saxon research, is a specific body dysmorphic disorder that characterizes individuals who think they are insufficiently muscular and lean. Understudied in francophone countries, tools translated and validated in French to measure the symptomatology of muscle dysmorphia remain rare. OBJECTIVES The aim of this study was the translation into French and the psychometric validation of a tool evaluating muscle dysmorphia, the Muscle Dysmorphic Disorder Inventory (MDDI-Fr), through 13 items divided into three dimensions: the "Drive For Size" (DFS), the "Appearance Intolerance" (AI) and the "Functional Impairment" (FI). METHODOLOGY A first translation step was conducted, followed by two cross-sectional studies conducted in France. In both of the latter studies, a sociodemographic questionnaire and the Muscle Dysmorphic Disorder Inventory - French version (MDDI-Fr) were administered. The first study included 342 university students (Mage=20.9; SDage=2.9), and 1822 athletes for the second study (Mage=23.9; SDage=5.9). Validation was performed using internal consistency measures and confirmatory factor analysis. RESULTS The correlation matrices showed good significant results between items and dimensions. The three dimensions appeared distinct from each other with significant intra-dimension correlations. The internal consistency of the tool and its three dimensions show valid Cronbach's alphas (study 1: DFS=0.79, AI=0.74, FI=0.75, MDDI=0.74; study 2: DFS=0.72, AI=0.75, FI=0.83, MDDI=0.75). In addition, the tri-factor analysis shows significant and promising scores for the tool in three dimensions and 13 items for study 1 (χ2/df=4.67, CFI=0.85, TLI=0.83, RMSEA=0.10, SRMR=0.00), as for study 2 (χ2/df=16.08, CFI=0.87, TLI=0.84, RMSEA=0.09, SRMR=.06). Gender analyses were conducted on study 2, which showed that the DFS subscale (items 1, 4, 5) and the AI subscale (items 6 and 9) presented the greatest differences in factor loadings between genders. CONCLUSION The translation, as well as the validation of the MDDI-Fr structured with 13 items and three dimensions, showed significantly satisfying results for its adaptation in French in a population of French men and women practicing weight training. However, the "Appearance Intolerance" dimension shows moderate links with the global tool, which should be investigated in future studies. Although the psychometric properties of the MDDI-Fr are promising, additional research is needed to gain a better understanding of gender differences in the results, especially for the DFS dimension.
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Affiliation(s)
- Jérôme Cuadrado
- Institut de Sciences Criminelles et de la Justice (ISCJ), Université de Bordeaux, 4, rue du Maréchal-Joffre, 33075 Bordeaux, France; Faculté de psychologie, Université de Bordeaux, 3ter, place de la Victoire, 33000 Bordeaux, France; Faculté STAPS, Équipe vie sportive, Laboratoire Cultures, éducation, sociétés (LACES, EA7437), Université de Bordeaux, 33600 Pessac, France; Cabinet de psychologie, 226, rue du Tondu, 33000 Bordeaux, France.
| | | | - Grégory Michel
- Institut de Sciences Criminelles et de la Justice (ISCJ), Université de Bordeaux, 4, rue du Maréchal-Joffre, 33075 Bordeaux, France; Faculté de psychologie, Université de Bordeaux, 3ter, place de la Victoire, 33000 Bordeaux, France; Pôle de santé Saint-Genès, 4, rue Régis, 33800 Bordeaux, France
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Normant S, Gendre A, Boucher S, Godey B, Bordure P, Michel G. Predictive factors of revision stapes surgery in otosclerosis. J Laryngol Otol 2023; 137:906-909. [PMID: 36511130 DOI: 10.1017/s0022215122002572] [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] [Indexed: 12/14/2022]
Abstract
OBJECTIVES This study aimed to investigate predictive factors for revision surgery in otosclerosis. METHODS This was a retrospective, multicentre study in four tertiary centres. The primary objective was to investigate factors that were predictive of the need for revision stapes surgery. RESULTS The 'revision' group included 145 patients, and the 'control' group included 143 patients. This study identified statistically significant predictive factors for the need for revision surgery: younger age, active smoking status, dyslipidaemia and high blood pressure. There was no statistically significant difference between the two groups in terms of surgical technique or stapedotomy technique. CONCLUSION This study showed that patients who are candidates for primary stapes surgery with younger age, active smoking status, dyslipidaemia and high blood pressure are at higher risk of needing revision surgery. A holistic approach prior to stapes surgery with multidisciplinary assessment is recommended. These results are important for better patient counselling on expected outcomes and risks.
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Affiliation(s)
- S Normant
- Department of Otorhinolaryngology, University Hospital of Nantes, France
| | - A Gendre
- Department of Otorhinolaryngology, University Hospital of Nantes, France
| | - S Boucher
- Department of Otorhinolaryngology, University Hospital of Angers, France
| | - B Godey
- Department of Otorhinolaryngology, University Hospital of Rennes, France
| | - P Bordure
- Department of Otorhinolaryngology, University Hospital of Nantes, France
| | - G Michel
- Department of Otorhinolaryngology, University Hospital of Nantes, France
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Garcia M, Rouchy E, Michel G. Temperament and character profiles of adolescent participants in the choking game. Arch Pediatr 2022; 29:475-479. [PMID: 36109289 DOI: 10.1016/j.arcped.2022.06.002] [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: 09/15/2021] [Revised: 04/25/2022] [Accepted: 06/18/2022] [Indexed: 11/17/2022]
Abstract
OBJECTIVE The role of personality traits in self-asphyxial behaviors remains largely unexplored. The aim of this study was to explore temperament and character profiles of youth reporting participation in the choking game using Cloninger's biopsychosocial model of personality. METHODS Data were collected among French middle-school students (N=1771) aged 9-16 years (mean age=13.0, SD=1.3) and randomly selected from 13 public establishments located in different regions of France. Logistic regression models were run to identify Cloninger's temperamental and character dimensions associated with engagement in the choking game. RESULTS Descriptive analysis revealed that participants showed high scores of novelty-seeking (Cohen's d=0.293, p<0.001) and low levels of cooperativeness (Cohen's d=0.182, p<0.01), persistence (Cohen's d=0.182, p<0.05), and reward dependence (Cohen's d=0.241, p<0.01). However, multivariate modeling indicated that only the novelty-seeking dimension tended to slightly differentiate participants from non-participants within the global sample (OR=1.03, 95% CI: 1-1.06). When we compared girls and boys, we found a slight trend in association only in boys (OR=1.04, 95% CI: 1-1.08). CONCLUSIONS Our study, which contributes to the growing literature on the psychological correlates of choking activities and is the first to investigate the potential predictive role of personality traits in this risky behavior, suggests to some extent that (a) the choking game could possibly be influenced by some temperamental characteristics, and that (b) it might not have the same function according to the gender considered.
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Affiliation(s)
- M Garcia
- Institut de Sciences Criminelles et de la Justice (ISCJ), University of Bordeaux, France; Department of Psychology, University of Bordeaux, France.
| | - E Rouchy
- Institut de Sciences Criminelles et de la Justice (ISCJ), University of Bordeaux, France; Department of Psychology, University of Bordeaux, France
| | - G Michel
- Institut de Sciences Criminelles et de la Justice (ISCJ), University of Bordeaux, France; Department of Psychology, University of Bordeaux, France
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Gebauer J, Skinner R, Haupt R, Kremer L, van der Pal H, Michel G, Armstrong GT, Hudson MM, Hjorth L, Lehnert H, Langer T. The chance of transition: strategies for multidisciplinary collaboration. Endocr Connect 2022; 11:e220083. [PMID: 35900792 PMCID: PMC9422248 DOI: 10.1530/ec-22-0083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 07/13/2022] [Indexed: 11/08/2022]
Abstract
Many long-term childhood cancer survivors suffer from treatment-related late effects, which may occur in any organ and include a wide spectrum of conditions. Long-term follow-up (LTFU) is recommended to facilitate early diagnosis and to ensure better health outcomes. Due to the heterogeneity of these sequelae, different specialists work together in the diagnosis and treatment of these conditions. Experts from both pediatric and internal medicine are involved in age-appropriate care by providing a transition process. Hence, LTFU of childhood cancer survivors is a prototypic example of multidisciplinary care for patients with complex needs treated in a specialized setting. International collaborations of healthcare professionals and scientists involved in LTFU of childhood cancer survivors, such as the International Guideline Harmonization Group, compile surveillance recommendations that can be clinically adopted all over the world. These global networks of clinicians and researchers make a joint effort to address gaps in knowledge, increase visibility and awareness of cancer survivorship and provide an excellent example of how progress in clinical care and scientific research may be achieved by international and multidisciplinary collaboration.
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Affiliation(s)
- J Gebauer
- Department of Internal Medicine I, University Hospital of Schleswig-Holstein, Campus Luebeck and Institute for Endocrinology and Diabetes, University of Luebeck, Luebeck, Germany
| | - R Skinner
- Department of Paediatric and Adolescent Haematology and Oncology and Children’s BMT Unit, Great North Children’s Hospital, Newcastle upon Tyne Hospitals NHS Foundation Trust, and Translational and Clinical Research Institute, Newcastle University Centre for Cancer, Newcastle University, Newcastle upon Tyne, UK
| | - R Haupt
- DOPO Clinic, Department of Hematology/Oncolgy, IRCCS Istituto Giannina Gaslini, Genova, Italy
| | - L Kremer
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
- Amsterdam UMC, Emma’s Children’s Hospital, Amsterdam, The Netherlands
| | - H van der Pal
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
| | - G Michel
- Department of Health Sciences and Medicine, University of Lucerne, Luzern, Switzerland
| | - G T Armstrong
- Department of Epidemiology and Cancer Control, St. Jude Children’s Research Hospital, Memphis, Tennessee, USA
| | - M M Hudson
- Department of Oncology, St. Jude Children’s Research Hospital, Memphis, Tennessee, USA
| | - L Hjorth
- Department of Clinical Sciences Lund, Paediatrics, Lund University, Skane University Hospital, Lund, Sweden
| | - H Lehnert
- Paris Lodron University of Salzburg, Salzburg, Austria
| | - T Langer
- Pediatric Hematology and Oncology, University Hospital of Schleswig-Holstein, Campus Luebeck, Luebeck, Germany
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Dalgaard Mikkelsen M, Barbeyron T, Ficko-Blean E, Naretto A, Larocque R, Genicot S, Roret T, Czjzek M, Meyer A, Michel G. Unveiling the substrate specificity of sulfatases, another important group of carbohydrate active enzymes. Acta Cryst Sect A 2022. [DOI: 10.1107/s2053273322096061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
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Garcia M, Rouchy E, Garcia M, Michel G. The network structure of psychopathic personality traits in a community sample of young adult females. Encephale 2022:S0013-7006(22)00101-4. [DOI: 10.1016/j.encep.2022.02.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 02/16/2022] [Accepted: 02/18/2022] [Indexed: 10/15/2022]
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Courbière B, Drikes B, Gros A, Hamidou Z, Bertrand Y, Gandemer V, Poiree M, Plantaz D, Plat G, Contet A, Ansoborlo S, Paillard C, Kanold J, Auquier P, Michel G. O-267 Uterine volume is dramatically decreased in Stem Cell Hematopoietic Transplantation childhood survivors whatever the conditioning regimen. A case-control MRI study in the L.E.A cohort. Hum Reprod 2022. [DOI: 10.1093/humrep/deac106.049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Study question
What is the impact of the type of myeloablative conditioning (MAC) regimen applied for hematopoietic stem cell transplantation (HSCT) on uterine volume of childhood leukemia survivors?
Summary answer
Uterine volume is significantly decreased after HSCT. Not only Total Body Irradiation (TBI), but also high-dose chemotherapy-based regimens containing alkylating agents induce uterine damage.
What is known already
Premature ovarian failure after HSCT is well known, as well as the uterine damage induced by TBI on uterine volume. A few studies have reported smaller uterus after HSCT in women treated with chemotherapy only. In these studies, uterus volume was assessed by a transabdominal and/or transvaginal ultrasonography, and primary diagnosis, age at treatment and chemotherapy regimen were heterogeneous. These preliminary results suggested that alkylating agents could induce uterine damage, as well as they induce fibrosis and vascular damage in ovarian stroma. The impact of chemotherapy on myometrium and uterus is still few investigated.
Study design, size, duration
A prospective multicentric national study was conducted between 2017, November and 2021, June in 16 University Teaching Hospitals that are following more than 4 500 childhood acute leukemia survivors enrolled in the L.E.A cohort. We included 88 adult women treated for a childhood acute leukemia with HSCT and who agreed a pelvic MRI assessment. Every case was matched 1:1 to control women who underwent MRI for benign ovarian cysts or benign pelvic pathology.
Participants/materials, setting, methods
Pelvic MRI scans were performed with a 1.5-T or 3T magnetic resonance scanner, including diffusion-weighted imaging sequences. Scans were centralized for a double-blinded lecture by two radiologists. The main outcome was the uterine volume. The secondary outcomes were uterine body-to-cervix ratio and apparent diffusion coefficient (ADC). Univariate and multivariate analyses have investigated the association of clinical and imaging variables with conditioning regimen and age at HSCT.
Main results and the role of chance
The mean age in HSCT group was 26.5 + 6.3 years. Mean age at HSCT was 9.1 + 0.3 years with a mean follow-up of 16.4 + 0.5 years. Among the 88 women included in HSCT group, two groups of conditioning regimens have been compared to the control group: a chemotherapy-only MAC regimen group with high dose of alkylating agents (n = 34) and one TBI-based regimen group (n = 52). Two MRI scans were not available. Among HSCT group, 75 women were considered as “normally impregnated” by estrogens, by hormone replacement therapy (HRT) for premature ovarian insufficiency (POI) or thanks to a residual ovarian function. Uterine volume was significantly decreased both after chemotherapy-only MAC regimen and after TBI, with respectively 45.3 + 5.6 and 19.6 + 1.9 mL Vs 79.7 + 3.3 mL in control population (p < 0.01). In chemotherapy-only MAC regimen group, uterine volume was dramatically decreased in POI women without HRT compared to those having a hormonal impregnation (15.2 + 2.6 Vs 49.3 + 6 mL, p < 0.05). In contrast, after TBI, uterine volume was similar in all women, with no positive effect of HRT on uterine volume (respectively 16.3 + 2.6 Vs 20.1 + 2.2 mL).
Limitations, reasons for caution
The number of pregnancies obtained spontaneously or after oocyte donation in our study population was too low to evaluate the obstetrical impact of uterine damage caused by non-TBI regimens.
Wider implications of the findings
Our results provide strong evidence that a MAC regimen containing high dose of alkylating agents could induce uterine damage. In these sub-group of women, HRT increases the volume of the uterus compared to non-treated women. After TBI, uterine volume is dramatically decreased, with no benefit of HRT on it.
Trial registration number
NCT 03583294
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Affiliation(s)
- B Courbière
- AP-HM Hôpital de la Conception / Aix Marseille University, gynecology-obstetrics and reproductive medicine , Marseille, France
| | - B Drikes
- AP-HM Hôpital de La Timone , Radiology, Marseille, France
| | - A Gros
- AP-HM Hôpital de La Timone , Radiology, Marseille, France
| | - Z Hamidou
- Hôpital de la Timone, CEReS Research Unit EA 3279- , Marseille, France
- Departmentof Public Health 3279- , Marseille, France
| | - Y Bertrand
- University Hospital of Lyon , Pediatric hematology , Lyon, France
| | - V Gandemer
- University Hospital of Rennes, Pediatric Hematology and Oncology , Rennes, France
| | - M Poiree
- University Hospital L'Archet , Pediatric Hematology and oncology , Nice, France
| | - D Plantaz
- University Hospital of Grenoble, Pediatric Hematology and Oncology , Grenoble, France
| | - G Plat
- University Hospital of Toulouse, Pediatric Hematology and Oncology , Toulouse, France
| | - A Contet
- Children's Hospital of Brabois , Pediatric Hematology and Oncology , Vandoeuvre-les-Nancy, France
| | - S Ansoborlo
- University Hospital of Bordeaux, Pediatric Hematology and Oncology , Bordeaux, France
| | - C Paillard
- University Hospital of Strasbourg, Pediatric Hematology and Oncology , Strasbourg, France
| | - J Kanold
- University Hospital of Clermont-Ferrand , Pediatric hematology and Oncology , Clermont-Ferrand, France
| | - P Auquier
- APHM Hôpital de la Timone / Aix Marseille University, CEReS Research Unit EA 3279 and Department of Public Health , Marseille, France
| | - G Michel
- La Timone Children's Hospital, Pediatric Hematology- Immunology and Oncology , Marseille, France
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Greca E, Kacimi SEO, Ghozy S, Wireko AA, Toufik A, Poudel S, Prendi B, Michel G, Michel J. Immunomodulatory effect of different statin regimens on regulatory T-cells among patients with acute coronary syndrome: a systematic review and network meta-analysis of randomized clinical trials. Cardiovasc Res 2022. [DOI: 10.1093/cvr/cvac066.148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
Immunomodulatory effect of different statin regimens on regulatory T-cells among patients with acute coronary syndrome: a systematic review and network meta-analysis of randomized clinical trials
Introduction
In patients with acute coronary syndrome (ACS), studies suggest that statin therapy, besides its role in reducing the progression of atherosclerosis through its pharmacological effect, plays a pivotal role in controlling the pathogenesis of ACS through the anti-inflammatory effects of suppressor regulatory T cells (Tregs).
Purpose
We conducted a network meta-analysis (NMA) to determine the effects of low-dose conventional statin therapy (CST) (20 mg/day or less) and high-dose intensive statin therapy (IST) (40 mg/day or more) on the frequency of Tregs and their associated cytokines (IFN-γ, IL-10, TGF-β), compared to placebo.
Methods
The PubMed, Cochrane Library, and EMBASE databases were searched for randomized clinical trials (RCTs) to identify relevant articles published until June 2021. We pooled data extracted from the included studies using the standardized mean difference (SMD). A random-effects model was used to conduct this NMA. Heterogeneity was evaluated using Cochran's Q- and the I2-test. GRADE(Grading of Recommendations, Assessment, Development and Evaluations) was used to assess the study's quality. Data analysis was conducted using R software.
Results
A total of 505 patients were enrolled in the 5 RCTs. The NMA indicated a significant increase in Treg frequency in the CST group compared with the control group (SMD 1.77; 95% CI: 0.77 – 2.76; P-value = 0.0005) and a larger increase in the Treg frequency associated with the IST group compared with the control group (SMD 2.12; 95% CI: 1.15 – 3.10; P-value < 0.0001). However, there was significant heterogeneity and inconsistency among the included studies (τ2 = 0.6096; τ = 0.7808; I2 = 91.2% [80.5%; 96.0%]). When compared to the placebo, both CST and IST increased levels of secreted IL-10 (SMD 2.69; 95% CI: 2.07 – 3.31; P-value < 0.0001 and (SMD 2.14; 95% CI: 1.76 – 2.52; P-value < 0.0001), respectively. In comparison to the control group, CST was associated with increased levels of TGF-β (SMD 3.83; 95% CI: 0.63 – 7.0; P-value = 0.0189). This association was not seen in the IST group. IFN-γ levels decreased significantly in both the IST and CST groups (SMD -1.52; 95% CI: -1.94 – -1.10; P-value < 0.0001) and (SMD -2.34; 95% CI: -2.73 – -1.95; P-value < 0.0001) respectively.
Conclusions
Our study suggests that both high and low dose statin groups showed increased Treg frequency compared to the placebo group. IST showed larger benefits. Statin therapy also increased IL-10 and TGF-β cytokine levels and decreased IFN-γ levels. Therefore, statins have the potential to be the main treatment to reduce the incidence of cardiovascular events and improve cardiac function in patients with ACS through immunomodulatory effect on Treg.
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Affiliation(s)
- E Greca
- Larkin Community Hospital, Division of Research and Academic Affairs , Miami , United States of America
| | - S E O Kacimi
- Larkin Community Hospital, Division of Research and Academic Affairs , Miami , United States of America
| | - S Ghozy
- Mayo Clinic, Department of Radiology , Rochester , United States of America
| | - A A Wireko
- Sumy State University, Medical Institute , Sumy , Ukraine
| | - A Toufik
- Sumy State University, Medical Institute , Sumy , Ukraine
| | - S Poudel
- Larkin Community Hospital, Division of Research and Academic Affairs , Miami , United States of America
| | - B Prendi
- University Hospital Center Mother Theresa , Tirana , Albania
| | - G Michel
- Larkin Community Hospital, Program Director of Internal Medicine , Miami , United States of America
| | - J Michel
- Larkin Community Hospital, Founder Larkin Health System/Larkin University , Miami , United States of America
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Garcia M, Rouchy E, Colins O, Andershed H, Michel G. Validation of the French Youth Psychopathic Traits Inventory-Short Version in a general population sample of emerging adults in France. Psychologie Française 2022. [DOI: 10.1016/j.psfr.2022.04.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Meyer É, Cuadrado J, Maire J, Michel G. La dysmnésie en mémoire à long terme sémantique ou les difficultés scolaires diffuses : un cas clinique. Annales Médico-psychologiques, revue psychiatrique 2022. [DOI: 10.1016/j.amp.2022.04.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Basto-Pereira M, Gouveia-Pereira M, Pereira CR, Barrett EL, Lawler S, Newton N, Stapinski L, Prior K, Costa MSA, Ximenes JM, Rocha AS, Michel G, Garcia M, Rouchy E, Al Shawi A, Sarhan Y, Fulano C, Magaia AJ, El-Astal S, Alattar K, Sabbah K, Holtzhausen L, Campbell E, Villanueva L, Gomis-Pomares A, Adrián JE, Cuervo K, Sakulku J. The global impact of adverse childhood experiences on criminal behavior: A cross-continental study. Child Abuse Negl 2022; 124:105459. [PMID: 35007971 DOI: 10.1016/j.chiabu.2021.105459] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 09/23/2021] [Accepted: 12/21/2021] [Indexed: 06/14/2023]
Abstract
BACKGROUND Adverse Childhood Experiences (ACEs) have been associated with a greater risk of later criminal offending. However, existing research in this area has been primarily conducted in Western developed countries and cross-cultural studies are rare. OBJECTIVES This study examined the relationship between ACEs and criminal behaviors in young adults living in 10 countries located across five continents, after accounting for sex, age, and cross-national differences. PARTICIPANTS AND SETTING In total, 3797 young adults aged between 18 and 20 years (M = 18.97; DP = 0.81) were assessed locally in community settings within the 10 countries. METHOD The ACE Questionnaire was used to assess maltreatment and household dysfunction during childhood and a subset of questions derived from the Deviant Behavior Variety Scale (DBVS) was used to determine past-year criminal variety pertaining to 10 acts considered crime across participating countries. RESULTS Physical and sexual abuse, physical neglect, and household substance abuse were related to criminal variety, globally, and independently across sexes and countries ranked differently in the United Nations Human Development Index (HDI). In addition, three out of five experiences of household dysfunction were related to criminal variety, but subsequent analyses indicate that some forms of household dysfunction only hold statistical significance among males or females, or in countries ranking lower in the HDI. CONCLUSIONS This research strengthens the finding that there are cross-cultural mechanisms perpetuating the cycle of violence. It also indicates that forms of household dysfunction have an impact on criminal behavior that is shaped by gender and the country's levels of social well-being.
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Affiliation(s)
- Miguel Basto-Pereira
- William James Center for Research, ISPA-Instituto Universitário, R. Jardim do Tabaco 34, 1100-304 Lisboa, Portugal..
| | - Maria Gouveia-Pereira
- APPsyCI, ISPA - Intituto Universitário, R. Jardim do Tabaco 34, 1100-304 Lisboa, Portugal
| | - Cicero Roberto Pereira
- Institute of Social Sciences, University of Lisbon (ICS-ULisboa), Av. Prof. Aníbal Bettencourt 9, 1600-189, Lisbon, Portugal; Federal University of Paraíba, Campus I - Lot. Cidade Universitaria, PB 58051-900, Brazil
| | - Emma Louise Barrett
- The Matilda Centre for Research in Mental Health and Substance Use, University of Sydney, NSW 2006, Australia
| | - Siobhan Lawler
- The Matilda Centre for Research in Mental Health and Substance Use, University of Sydney, NSW 2006, Australia
| | - Nicola Newton
- The Matilda Centre for Research in Mental Health and Substance Use, University of Sydney, NSW 2006, Australia
| | - Lexine Stapinski
- The Matilda Centre for Research in Mental Health and Substance Use, University of Sydney, NSW 2006, Australia
| | - Katrina Prior
- The Matilda Centre for Research in Mental Health and Substance Use, University of Sydney, NSW 2006, Australia
| | - Maria Suely Alves Costa
- Universidade Federal do Ceará, UFC, Campus Sobral, R. Cel. Estanislau Frota, 563 - Centro, Sobral, CE 62010-560, Brazil
| | - Jocélia Medeiros Ximenes
- Universidade Federal do Ceará, UFC, Campus Sobral, R. Cel. Estanislau Frota, 563 - Centro, Sobral, CE 62010-560, Brazil
| | - André Sousa Rocha
- Universidade Federal do Ceará, UFC, Campus Sobral, R. Cel. Estanislau Frota, 563 - Centro, Sobral, CE 62010-560, Brazil
| | - Grégory Michel
- Institut de Sciences Criminelles et de la Justice (ISCJ), University of Bordeaux, 4 rue du Maréchal Joffre, 1er étage, 33000 Bordeaux, France; Department of Psychology, University of Bordeaux, ISCJ, 4 rue du Maréchal Joffre, 33075 Bordeaux, France
| | - Mathieu Garcia
- Institut de Sciences Criminelles et de la Justice (ISCJ), University of Bordeaux, 4 rue du Maréchal Joffre, 1er étage, 33000 Bordeaux, France; Department of Psychology, University of Bordeaux, ISCJ, 4 rue du Maréchal Joffre, 33075 Bordeaux, France
| | - Emma Rouchy
- Institut de Sciences Criminelles et de la Justice (ISCJ), University of Bordeaux, 4 rue du Maréchal Joffre, 1er étage, 33000 Bordeaux, France; Department of Psychology, University of Bordeaux, ISCJ, 4 rue du Maréchal Joffre, 33075 Bordeaux, France
| | - Ameel Al Shawi
- Department of Community & Family Medicine, College of Medicine, University of Fallujah, Fallujah City, Anbar Governorate, Iraq
| | - Yassen Sarhan
- Department of Community & Family Medicine, College of Medicine, University of Anbar, Ramadi city, Anbar Governorate, Iraq
| | - Celso Fulano
- Universidade Pedagógica, Rua João Carlos Raposo Beirão n° 135, Maputo, Mozambique; Maputo Municipal Council, Bairro Chali, n°142, estrada 403, Maputo, Mozambique
| | - Angélica José Magaia
- Ministry of Gender, Children and Social Action, National Director of Children, Av Ahmed S Touré 908, Maputo, Mozambique
| | - Sofián El-Astal
- Al Azhar University-Gaza, Jamal Abdl Naser St., Gaza, Palestine
| | - Kefaya Alattar
- Al Azhar University-Gaza, Jamal Abdl Naser St., Gaza, Palestine
| | - Khetam Sabbah
- Al Azhar University-Gaza, Jamal Abdl Naser St., Gaza, Palestine
| | - Leon Holtzhausen
- Department of Social Development, University of Cape Town, Rondebosch, Cape Town 7700, South Africa
| | - Emma Campbell
- Department of Social Development, University of Cape Town, Rondebosch, Cape Town 7700, South Africa
| | - Lidón Villanueva
- Developmental Psychology Department, Universitat Jaume I, Avda. Sos Baynat, s/n 12071, Castellón, Spain
| | - Aitana Gomis-Pomares
- Developmental Psychology Department, Universitat Jaume I, Avda. Sos Baynat, s/n 12071, Castellón, Spain
| | - Juan E Adrián
- Developmental Psychology Department, Universitat Jaume I, Avda. Sos Baynat, s/n 12071, Castellón, Spain
| | - Keren Cuervo
- Developmental Psychology Department, Universitat Jaume I, Avda. Sos Baynat, s/n 12071, Castellón, Spain
| | - Jaruwan Sakulku
- School of Psychology, Faculty of Liberal Arts, Thammasat University, 99 Moo 18 Paholyothin Rd. Khlong Nueng, Khlong Luang, Pathumthani 12121, Thailand
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Abstract
AIM The aim of this study was to evaluate the impact of cochlear reimplantation (CR) on hearing performance in children and adults with severe to profound hearing loss. MATERIAL AND METHODS Retrospective observational study. OBJECTIVES The main objective of this study was to determine whether there was a difference in hearing performance before and after CR. Secondary objectives were to analyze reasons for CR; to assess correlations between auditory performance and complete electrode reinsertion during CR, age, gender, explantation-to-CR interval, and interval between first implantation and CR; and to assess difference in APCEI score and the French evaluation protocol for implanted patients before and after CR. RESULTS Comparison of speech perception scores before and after explantation-reimplantation showed no significant difference (P>0.005) at 1 year or at 2 years after CR. In 80% of cases, reimplantation was due to hard implant failure. In other cases, it was undertaken for soft failure (diminished performance but no abnormalities on integrity testing) (8%), medical reasons (6%), or undetermined reasons (6%). There was no significant correlation between auditory performance at 1 or 2 years and complete or incomplete reinsertion of electrodes, age, gender, explantation-to-CR interval, or interval between first implantation and CR (P>0.005). For the adult subgroup, the French evaluation protocol scores did not differ after reimplantation (P=0.62). Likewise, for the child sub-group, APCEI and CAP results did not deteriorate after reimplantation. CONCLUSION Reimplantation had no negative impact on hearing and speech perception, but provided performance equivalent to or better than after initial implantation.
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Affiliation(s)
- M Durand
- Service d'ORL et de Chirurgie Cervico-Faciale, Centre Hospitalier Universitaire, 1, Place Alexis-Ricordeau, 44093 Nantes Cedex 1, France.
| | - G Michel
- Service d'ORL et de Chirurgie Cervico-Faciale, Centre Hospitalier Universitaire, 1, Place Alexis-Ricordeau, 44093 Nantes Cedex 1, France
| | - J Boyer
- Service d'ORL et de Chirurgie Cervico-Faciale, Centre Hospitalier Universitaire, 1, Place Alexis-Ricordeau, 44093 Nantes Cedex 1, France
| | - P Bordure
- Service d'ORL et de Chirurgie Cervico-Faciale, Centre Hospitalier Universitaire, 1, Place Alexis-Ricordeau, 44093 Nantes Cedex 1, France
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Singh P, Samanta K, Kebe NM, Michel G, Legrand B, Sitnikova VE, Kajava AV, Pagès M, Bastien P, Pomares C, Coux O, Hernandez JF. The C-terminal segment of Leishmania major HslU: Toward potential inhibitors of LmHslVU activity. Bioorg Chem 2021; 119:105539. [PMID: 34894575 DOI: 10.1016/j.bioorg.2021.105539] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 11/08/2021] [Accepted: 12/01/2021] [Indexed: 01/23/2023]
Abstract
It is urgent to develop less toxic and more efficient treatments for leishmaniases and trypanosomiases. We explore the possibility to target the parasite mitochondrial HslVU protease, which is essential for growth and has no analogue in the human host. For this, we develop compounds potentially inhibiting the complex assembly by mimicking the C-terminal (C-ter) segment of the ATPase HslU. We previously showed that a dodecapeptide derived from Leishmania major HslU C-ter segment (LmC12-U2, Cpd 1) was able to bind to and activate the digestion of a fluorogenic substrate by LmHslV. Here, we present the study of its structure-activity relationships. By replacing each essential residue with related non-proteinogenic residues, we obtained more potent analogues. In particular, a cyclohexylglycine residue at position 11 (cpd 24) allowed a more than three-fold gain in potency while reducing the size of compound 24 from twelve to six residues (cpd 50) without significant loss of potency, opening the way toward short HslU C-ter peptidomimetics as potential inhibitors of HslV proteolytic function. Finally, conjugates constituted of LmC6-U2 analogues and a mitochondrial penetrating peptide were found to penetrate into the promastigote form of L. infantum and to inhibit the parasite growth without showing toxicity toward human THP-1 cells at the same concentration (i.e. 30 μM).
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Affiliation(s)
- Priyanka Singh
- IBMM, CNRS, Univ Montpellier, ENSCM, Montpellier, France
| | | | - Ndeye Mathy Kebe
- Centre de Recherche en Biologie Cellulaire de Montpellier (CRBM), UMR5237, CNRS, Univ Montpellier, 1919, route de Mende, 34000 Montpellier, France
| | - Grégory Michel
- Centre Méditerranéen de Médecine Moléculaire (C3M), U1065, Université Côte d'Azur, Inserm, Archimed Building, 151 route Saint Antoine de Ginestière, 06000 Nice, France
| | | | - Vera E Sitnikova
- International Research Institute of Bioengineering, ITMO University, Kronverksky Pr. 49, 197101 Saint Petersburg, Russia
| | - Andrey V Kajava
- Centre de Recherche en Biologie Cellulaire de Montpellier (CRBM), UMR5237, CNRS, Univ Montpellier, 1919, route de Mende, 34000 Montpellier, France
| | - Michel Pagès
- MIVEGEC, Univ Montpellier, CNRS, IRD, CHU, 191 avenue du Doyen Giraud, 34000 Montpellier, France
| | - Patrick Bastien
- MIVEGEC, Univ Montpellier, CNRS, IRD, CHU, 191 avenue du Doyen Giraud, 34000 Montpellier, France
| | - Christelle Pomares
- Centre Méditerranéen de Médecine Moléculaire (C3M), U1065, Université Côte d'Azur, Inserm, Archimed Building, 151 route Saint Antoine de Ginestière, 06000 Nice, France
| | - Olivier Coux
- Centre de Recherche en Biologie Cellulaire de Montpellier (CRBM), UMR5237, CNRS, Univ Montpellier, 1919, route de Mende, 34000 Montpellier, France.
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Schwing A, Pisani DF, Pomares C, Majoor A, Lacas-Gervais S, Jager J, Lemichez E, Marty P, Boyer L, Michel G. Identification of adipocytes as target cells for Leishmania infantum parasites. Sci Rep 2021; 11:21275. [PMID: 34711872 PMCID: PMC8553825 DOI: 10.1038/s41598-021-00443-y] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 09/29/2021] [Indexed: 11/30/2022] Open
Abstract
Leishmania infantum is the causative agent of visceral leishmaniasis transmitted by the bite of female sand flies. According to the WHO, the estimated annual incidence of leishmaniasis is one million new cases, resulting in 30,000 deaths per year. The recommended drugs for treating leishmaniasis include Amphotericin B. But over the course of the years, several cases of relapses have been documented. These relapses cast doubt on the efficiency of actual treatments and raise the question of potential persistence sites. Indeed, Leishmania has the ability to persist in humans for long periods of time and even after successful treatment. Several potential persistence sites have already been identified and named as safe targets. As adipose tissue has been proposed as a sanctuary of persistence for several pathogens, we investigated whether Leishmania infantum could be found in this tissue. We demonstrated both in cell cultures and in vivo that Leishmania infantum was able to infect adipocytes. Altogether our results suggest adipocytes as a 'safe target' for Leishmania infantum parasites.
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Affiliation(s)
- Aurélie Schwing
- Université Côte d'Azur, CHU, Inserm, C3M, Nice, France
- Université Côte d'Azur, Inserm, C3M, Nice, France
- Université Aix-Marseille, Marseille, France
| | | | - Christelle Pomares
- Université Côte d'Azur, CHU, Inserm, C3M, Nice, France
- Université Côte d'Azur, Inserm, C3M, Nice, France
| | | | | | | | - Emmanuel Lemichez
- Institut Pasteur, CNRS UMR2001, Unité des Toxines Bactériennes, 75015, Paris, France
| | - Pierre Marty
- Université Côte d'Azur, CHU, Inserm, C3M, Nice, France
- Université Côte d'Azur, Inserm, C3M, Nice, France
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Adrien JL, Taupiac E, Thiébaut E, Paulais MA, Van-Gils J, Kaye K, Blanc R, Gattegno MP, Contejean Y, Michel G, Dean A, Barthélémy C, Lacombe D. A comparative study of cognitive and socio-emotional development in children with Rubinstein-Taybi syndrome and children with Autism Spectrum Disorder associated with a severe intellectual disability, and in young typically developing children with matched developmental ages. Res Dev Disabil 2021; 116:104029. [PMID: 34271530 DOI: 10.1016/j.ridd.2021.104029] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 03/19/2021] [Accepted: 07/08/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Cognitive and socio-emotional profiles of children with CREBBP-related Rubinstein-Taybi syndrome (RSTS 1), children with Autism Spectrum Disorder (ASD) with severe intellectual disability and developmental ages (DA) under 24 months, and typically developing (TD) children with similar DA were compared. PARTICIPANTS Thirty-one children with RSTS 1 (mean chronological age, CA = 59,8 months; 33-87) and thirty children with ASD, matched on CA and DA and developmental quotients (DQ), were compared to thirty TD children (CA ranged from 12 to 24 months). METHODS Cognitive and socio-emotional developmental levels, DA and DQ were assessed with appropriated tests. RESULTS More socio-emotional developmental similarities were observed between TD and RSTS 1 than between TD and ASD children. Clinical groups displayed similar developmental delays in cognitive (self-image, symbolic play, means-ends, and object permanence) and socio-emotional domains (language and imitation). Children with RSTS 1 exhibited higher developmental levels in behavior regulation, joint attention, affective relations, emotional expression domains, and a lower developmental level in spatial relations domain. CONCLUSIONS Common interventions centered on symbolic play, self-image, language, and imitation for both clinical groups, and differentiated interventions centered on spatial abilities for RSTS 1 children and on social abilities for ASD could be used by caregivers were suggested.
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Affiliation(s)
- Jean-Louis Adrien
- Laboratory of Psychopathology and Health Processes (EA n°4057), Department of Psychology, University of Paris, 71 avenue Edouard Vaillant, 92774 Boulogne-Billancourt, France.
| | - Emmanuelle Taupiac
- Department of Medical Genetics, CHU Bordeaux, Place Amélie Raba Léon, 33076 Bordeaux Cedex, France
| | - Eric Thiébaut
- Lorrain Laboratory of Psychology and Neuroscience of Behavior Dynamics (2LPN), University of Lorraine, 34, Cours Léopold, BP 3397, 54015 Nancy, France
| | - Marie-Anna Paulais
- Psychology Practice ESPAS-Sup, 18, rue René-Firmin, 60700 Pont-Ste-Maxence, France
| | - Julien Van-Gils
- Department of Medical Genetics, CHU Bordeaux, Place Amélie Raba Léon, 33076 Bordeaux Cedex, France; INSERM Unit 1211, Laboratory "Rare Diseases: Genetics and Metabolism", University of Bordeaux, Place Amélie Raba Léon, 33076 Bordeaux Cedex, France
| | - Kelley Kaye
- Child Psychiatry Department of Sainte Anne Hospital, CREDAT, 1, rue Cabanis 75014, Paris, France
| | - Romuald Blanc
- Laboratory of Psychopathology and Health Processes (EA n°4057), Department of Psychology, University of Paris, 71 avenue Edouard Vaillant, 92774 Boulogne-Billancourt, France; Child Psychiatry Department of University Hospital Bretonneau, 2, boulevard Tonnellé, 37000 Tours, France; Direction of the Scientific Interest Grouping for Autism and Neurodevelopmental Disorders, INSERM, Paris, France
| | - Maria Pilar Gattegno
- Laboratory of Psychopathology and Health Processes (EA n°4057), Department of Psychology, University of Paris, 71 avenue Edouard Vaillant, 92774 Boulogne-Billancourt, France; Psychology Practice ESPAS-Sup, 3 rue Victoire-Américaine, 33000 Bordeaux, France
| | - Yves Contejean
- Child Psychiatry Department of Sainte Anne Hospital, CREDAT, 1, rue Cabanis 75014, Paris, France
| | - Grégory Michel
- Institute of Criminal Sciences and Justice (ISCJ - EA 4061), University Victor Segalen Bordeaux 2, 4, rue du Maréchal Joffre - CS, 61752 - 33075 Bordeaux Cedex, France
| | - Annika Dean
- Fondation Les Amis de l'Atelier, 17 rue de l'égalité, 92290 Châtenay-Malabry, France
| | - Catherine Barthélémy
- Direction of the Scientific Interest Grouping for Autism and Neurodevelopmental Disorders, INSERM, Paris, France
| | - Didier Lacombe
- Department of Medical Genetics, CHU Bordeaux, Place Amélie Raba Léon, 33076 Bordeaux Cedex, France; INSERM Unit 1211, Laboratory "Rare Diseases: Genetics and Metabolism", University of Bordeaux, Place Amélie Raba Léon, 33076 Bordeaux Cedex, France
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20
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Qassemyar Q, Michel G, Gianfermi M, Atlan M, Havet E, Luca-Pozner V. Sutureless venous microanastomosis using thermosensitive poloxamer and cyanoacrylate: experimental study on a rat model. J Plast Reconstr Aesthet Surg 2021; 75:433-438. [PMID: 34247962 DOI: 10.1016/j.bjps.2021.05.072] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 05/08/2021] [Accepted: 05/28/2021] [Indexed: 02/01/2023]
Abstract
INTRODUCTION Sutureless microvascular anastomoses could simplify the microvascular field, shortening operative time and improving the final outcome. The use of thermosensitive poloxamers (TP407) together with the application of cyanoacrylate as an alternative method for conventional sutures was well-documented for arteries, but not for veins. The purpose of our study was to prove the feasibility of this technique for venous anastomoses and compare it with the traditional hand-sewn technique on a rat model. MATERIALS AND METHODS Twenty male Sprague-Dawley rats that weighed between 265 and 310 g were used. In the sutureless group (SG), 20 left external jugular veins (LEJV) end-to-end anastomoses were performed using a T704 and cyanoacrylate glue. They were compared to 20 right external jugular veins (REJV) anastomoses sutured with conventional 10-0 stitches (control group - CG). Diameters of veins, anastomosis time, and patency rate at 15 days were reported. Foreign body reaction was assessed histologically. RESULTS The mean diameter of the LEJV was 0.94 ± 0.1 mm and 0.95 ± 0.09 mm for the REJV. The mean anastomosis time was 11.9 ± 1.37 min for the SG and 27.75 ± 3.31 min for the CG. In the latter group, the immediate patency rate was 95% and 90% at 15 days. For the SG group, 90% of the anastomoses were patent immediately and 85% at 15 days. CONCLUSION TP407 and cyanoacrylate could offer a fast and reliable technique for sutureless venous anastomoses. Before human application, effectiveness of this method remains to be confirmed in larger animals in a long-term follow-up.
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Affiliation(s)
- Q Qassemyar
- Department of Plastic and Reconstructive Surgery, University Hospital Armand-Trousseau, 26 avenue du Dr Arnold Netter, 75012 Paris, France; Faculty of Medicine, Sorbonne University, 91 boulevard de l'hôpital, 75013 Paris, France; Anatomy Department, University of Picardie, Rue des Louvels, 80000 Amiens, France
| | - G Michel
- Anatomy Department, University of Picardie, Rue des Louvels, 80000 Amiens, France
| | - M Gianfermi
- Anatomy Department, University of Picardie, Rue des Louvels, 80000 Amiens, France
| | - M Atlan
- Faculty of Medicine, Sorbonne University, 91 boulevard de l'hôpital, 75013 Paris, France; Department of Plastic Surgery, Tenon Hospital, 4 Rue de la Chine, 75020 Paris, France
| | - E Havet
- Anatomy Department, University of Picardie, Rue des Louvels, 80000 Amiens, France
| | - V Luca-Pozner
- Department of Plastic and Reconstructive Surgery, University Hospital Armand-Trousseau, 26 avenue du Dr Arnold Netter, 75012 Paris, France; Faculty of Medicine, Sorbonne University, 91 boulevard de l'hôpital, 75013 Paris, France.
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21
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Hackstein H, Kalina A, Dorn B, Keil IS, Baal N, Michel G, Brendel C, Neubauer A, Jakob T, Bein G. CD11c + dendritic cells mediate antigen-specific suppression in extracorporeal photopheresis. Clin Exp Immunol 2020; 203:329-339. [PMID: 33073358 PMCID: PMC7806418 DOI: 10.1111/cei.13539] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 10/07/2020] [Accepted: 10/11/2020] [Indexed: 01/05/2023] Open
Abstract
Extracorporeal photopheresis (ECP) represents one of the most widespread and effective cell therapies for graft‐versus‐host disease and other T cell‐mediated disorders. However, the key factors affecting the therapeutic efficacy of ECP remain unclear. We hypothesized that therapeutic effects are mediated by ECP‐treated antigen‐presenting dendritic cells (DC). To test this hypothesis, we used the experimental model of contact hypersensitivity (CHS). The ECP’s therapeutic activity improved when the total cell dose of the ECP‐treated cells was increased. We used different haptens during sensitization to demonstrate that the anti‐inflammatory activity of ECP is antigen‐specific. This confirmed the hypothesis that professional antigen‐presenting cells are involved in the mode of action. Also, the ECP’s therapeutic activity was abrogated by the depletion of CD11c+ DC, which represents fewer than 1% of all the ECP‐exposed cells. Finally, we confirm the critical importance of CD11c+ DC for ECP activity by showing that only a few purified CD11c+ DC are sufficient to mediate its therapeutic effect. The finding that ECP‐treated, physiological antigen‐presenting DC alone mediate antigen‐specific modulation of a pathological immune response may result in better‐targeted interventions when treating patients.
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Affiliation(s)
- H Hackstein
- Department of Transfusion Medicine and Hemostaseology, University Hospital Erlangen, Erlangen, Germany
| | - A Kalina
- Institute for Clinical Immunology and Transfusion Medicine, Justus-Liebig-University, Giessen, Germany
| | - B Dorn
- Department of Dermatology and Allergology, Experimental Dermatology and Allergy Research Group, Justus-Liebig-University, Giessen, Germany
| | - I S Keil
- Institute for Clinical Immunology and Transfusion Medicine, Justus-Liebig-University, Giessen, Germany
| | - N Baal
- Institute for Clinical Immunology and Transfusion Medicine, Justus-Liebig-University, Giessen, Germany
| | - G Michel
- Institute for Clinical Immunology and Transfusion Medicine, Justus-Liebig-University, Giessen, Germany
| | - C Brendel
- Department of Hematology, Oncology, Immunology, Philipps-University, Marburg, Germany
| | - A Neubauer
- Department of Hematology, Oncology, Immunology, Philipps-University, Marburg, Germany
| | - T Jakob
- Department of Dermatology and Allergology, Experimental Dermatology and Allergy Research Group, Justus-Liebig-University, Giessen, Germany
| | - G Bein
- Institute for Clinical Immunology and Transfusion Medicine, Justus-Liebig-University, Giessen, Germany
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22
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Mollin M, Beaumel S, Vigne B, Brault J, Roux-Buisson N, Rendu J, Barlogis V, Catho G, Dumeril C, Fouyssac F, Monnier D, Gandemer V, Revest M, Brion JP, Bost-Bru C, Jeziorski E, Eitenschenck L, Jarrasse C, Drillon Haus S, Houachée-Chardin M, Hancart M, Michel G, Bertrand Y, Plantaz D, Kelecic J, Traberg R, Kainulainen L, Fauré J, Fieschi F, Stasia MJ. Clinical, functional and genetic characterization of 16 patients suffering from chronic granulomatous disease variants - identification of 11 novel mutations in CYBB. Clin Exp Immunol 2020; 203:247-266. [PMID: 32954498 DOI: 10.1111/cei.13520] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 08/25/2020] [Accepted: 09/07/2020] [Indexed: 12/13/2022] Open
Abstract
Chronic granulomatous disease (CGD) is a rare inherited disorder in which phagocytes lack nicotinamide adenine dinucleotide phosphate (NADPH) oxidase activity. The most common form is the X-linked CGD (X91-CGD), caused by mutations in the CYBB gene. Clinical, functional and genetic characterizations of 16 CGD cases of male patients and their relatives were performed. We classified them as suffering from different variants of CGD (X910 , X91- or X91+ ), according to NADPH oxidase 2 (NOX2) expression and NADPH oxidase activity in neutrophils. Eleven mutations were novel (nine X910 -CGD and two X91- -CGD). One X910 -CGD was due to a new and extremely rare double missense mutation Thr208Arg-Thr503Ile. We investigated the pathological impact of each single mutation using stable transfection of each mutated cDNA in the NOX2 knock-out PLB-985 cell line. Both mutations leading to X91- -CGD were also novel; one deletion, c.-67delT, was localized in the promoter region of CYBB; the second c.253-1879A>G mutation activates a splicing donor site, which unveils a cryptic acceptor site leading to the inclusion of a 124-nucleotide pseudo-exon between exons 3 and 4 and responsible for the partial loss of NOX2 expression. Both X91- -CGD mutations were characterized by a low cytochrome b558 expression and a faint NADPH oxidase activity. The functional impact of new missense mutations is discussed in the context of a new three-dimensional model of the dehydrogenase domain of NOX2. Our study demonstrates that low NADPH oxidase activity found in both X91- -CGD patients correlates with mild clinical forms of CGD, whereas X910 -CGD and X91+ -CGD cases remain the most clinically severe forms.
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Affiliation(s)
- M Mollin
- Pôle de Biologie, Centre Hospitalier Universitaire Grenoble Alpes, CGD Diagnosis and Research Centre (CDiReC), Grenoble, France
| | - S Beaumel
- Pôle de Biologie, Centre Hospitalier Universitaire Grenoble Alpes, CGD Diagnosis and Research Centre (CDiReC), Grenoble, France
| | - B Vigne
- Pôle de Biologie, Centre Hospitalier Universitaire Grenoble Alpes, CGD Diagnosis and Research Centre (CDiReC), Grenoble, France
| | - J Brault
- Pôle de Biologie, Centre Hospitalier Universitaire Grenoble Alpes, CGD Diagnosis and Research Centre (CDiReC), Grenoble, France
| | - N Roux-Buisson
- Pôle de Biologie, Centre Hospitalier Universitaire Grenoble Alpes, Laboratoire de Biochimie et Génétique Moléculaire, Grenoble, France.,Grenoble Institut Neurosciences, Université Grenoble Alpes, Inserm U1216, Grenoble, France
| | - J Rendu
- Pôle de Biologie, Centre Hospitalier Universitaire Grenoble Alpes, Laboratoire de Biochimie et Génétique Moléculaire, Grenoble, France.,Grenoble Institut Neurosciences, Université Grenoble Alpes, Inserm U1216, Grenoble, France
| | - V Barlogis
- Service de Pédiatrie et Hématologie Pédiatrique, Centre Hospitalier Universitaire La Timone, Marseille, France
| | - G Catho
- Institut d'Hématologie et d'Oncologie Pédiatrique, Hospices Civiles de Lyon, Lyon, France
| | - C Dumeril
- Service de Pédiatrie, Centre Hospitalier Annecy Genevois, Pringy, France
| | - F Fouyssac
- Département d'Onco-hématologie Pédiatrique, Centre Hospitalier Universitaire de Nancy, Vandoeuvre-lès-Nancy, France
| | - D Monnier
- Laboratoire d'Immunologie Cellulaire, Centre Hospitalier Universitaire Pontchaillou, Rennes, France
| | - V Gandemer
- Service d'Onco-hématologie Pédiatrique, Centre Hospitalier Universitaire de Rennes, Rennes, France
| | - M Revest
- Service des Maladies Infectieuses et Réanimation Médicale, Centre Hospitalier Universitaire de Rennes, Rennes, France
| | - J-P Brion
- Pôle Médecine Aigue et Communautaire, Service d'Infectiologie, Centre Hospitalier Universitaire Grenoble Alpes, Grenoble, France
| | - C Bost-Bru
- Département de Pédiatrie, Centre Hospitalier Universitaire Grenoble Alpes, Grenoble, France
| | - E Jeziorski
- Département Urgences Post-urgences, CHU Montpellier, Pathogenesis and Control of Chronic Infections, INSERM, Université de Montpellier, Montpellier, France
| | - L Eitenschenck
- Service de Pédiatrie, Centre Hospitalier Annecy Genevois, Pringy, France
| | - C Jarrasse
- Service de Pédiatrie, Centre Hospitalier Annecy Genevois, Pringy, France
| | - S Drillon Haus
- Service de Pédiatrie et Onco-hématologie, Centre Hospitalier Universitaire de Strasbourg, Hôpital de Hautepierre, Strasbourg, France
| | - M Houachée-Chardin
- Institut d'Hématologie et d'Oncologie Pédiatrique, Hospices Civiles de Lyon, Lyon, France
| | - M Hancart
- Département Urgences Post-urgences, CHU Montpellier, Pathogenesis and Control of Chronic Infections, INSERM, Université de Montpellier, Montpellier, France
| | - G Michel
- Service de Pédiatrie et Hématologie Pédiatrique, Centre Hospitalier Universitaire La Timone, Marseille, France
| | - Y Bertrand
- Institut d'Hématologie et d'Oncologie Pédiatrique, Hospices Civiles de Lyon, Lyon, France
| | - D Plantaz
- Département de Pédiatrie, Centre Hospitalier Universitaire Grenoble Alpes, Grenoble, France
| | - J Kelecic
- Klinicki Bolnicki Centar Zagreb, Zagreb, Croatia
| | - R Traberg
- Hospital of Lithuanian University of Health Sciences, Kauno Klinikos, Kaunas, Lithuania
| | - L Kainulainen
- Department of Pediatrics, University Hospital of Turku, Turku, Finland.,Faculty of Medicine Turku, University of Turku, Turku, Finland
| | - J Fauré
- Pôle de Biologie, Centre Hospitalier Universitaire Grenoble Alpes, Laboratoire de Biochimie et Génétique Moléculaire, Grenoble, France.,Grenoble Institut Neurosciences, Université Grenoble Alpes, Inserm U1216, Grenoble, France
| | - F Fieschi
- Univ. Grenoble Alpes, CEA, CNRS, IBS, F-38044, Grenoble, France
| | - M J Stasia
- Pôle de Biologie, Centre Hospitalier Universitaire Grenoble Alpes, CGD Diagnosis and Research Centre (CDiReC), Grenoble, France.,Univ. Grenoble Alpes, CEA, CNRS, IBS, F-38044, Grenoble, France
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23
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Falcon E, Michel G, Prabhudesai G, Cazaubiel A, Berhanu M, Mordant N, Aumaître S, Bonnefoy F. Saturation of the Inverse Cascade in Surface Gravity-Wave Turbulence. Phys Rev Lett 2020; 125:134501. [PMID: 33034484 DOI: 10.1103/physrevlett.125.134501] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Accepted: 08/14/2020] [Indexed: 06/11/2023]
Abstract
We report on the observation of surface gravity-wave turbulence at scales larger than the forcing ones in a large basin. In addition to the downscale transfer usually reported in gravity-wave turbulence, an upscale transfer is observed, interpreted as the inverse cascade of weak turbulence theory. A steady state is achieved when the inverse cascade reaches a scale in between the forcing wavelength and the basin size, but far from the latter. This inverse cascade saturation, which depends on the wave steepness, is probably due to the emergence of nonlinear dissipative structures such as sharp-crested waves.
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Affiliation(s)
- E Falcon
- Université de Paris, Univ Paris Diderot, MSC, UMR 7057 CNRS, F-75 013 Paris, France
| | - G Michel
- Sorbonne Université, IJLRA, UMR 7190 CNRS, F-75 005 Paris, France
| | - G Prabhudesai
- Ecole Normale Supérieure, LPS, UMR 8550 CNRS, F-75 205 Paris, France
| | - A Cazaubiel
- Université de Paris, Univ Paris Diderot, MSC, UMR 7057 CNRS, F-75 013 Paris, France
| | - M Berhanu
- Université de Paris, Univ Paris Diderot, MSC, UMR 7057 CNRS, F-75 013 Paris, France
| | - N Mordant
- Université Grenoble Alpes, LEGI, UMR 5519 CNRS, F-38 000 Grenoble, France
| | - S Aumaître
- CEA-Saclay, Sphynx, DSM, URA 2464 CNRS, F-91 191 Gif-sur-Yvette, France
| | - F Bonnefoy
- Ecole Centrale de Nantes, LHEEA, UMR 6598 CNRS, F-44 321 Nantes, France
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24
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Lelchat F, Mocaer PY, Ojima T, Michel G, Sarthou G, Bucciarelli E, Cérantola S, Colliec-Jouault S, Boisset C, Baudoux AC. Viral degradation of marine bacterial exopolysaccharides. FEMS Microbiol Ecol 2020; 95:5498295. [PMID: 31125051 DOI: 10.1093/femsec/fiz079] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Accepted: 05/23/2019] [Indexed: 11/14/2022] Open
Abstract
The identification of the mechanisms by which marine dissolved organic matter (DOM) is produced and regenerated is critical to develop robust prediction of ocean carbon cycling. Polysaccharides represent one of the main constituents of marine DOM and their degradation is mainly attributed to polysaccharidases derived from bacteria. Here, we report that marine viruses can depolymerize the exopolysaccharides (EPS) excreted by their hosts using five bacteriophages that infect the notable EPS producer, Cobetia marina DSMZ 4741. Degradation monitorings as assessed by gel electrophoresis and size exclusion chromatography showed that four out of five phages carry structural enzymes that depolymerize purified solution of Cobetia marina EPS. The depolymerization patterns suggest that these putative polysaccharidases are constitutive, endo-acting and functionally diverse. Viral adsorption kinetics indicate that the presence of these enzymes provides a significant advantage for phages to adsorb onto their hosts upon intense EPS production conditions. The experimental demonstration that marine phages can display polysaccharidases active on bacterial EPS lead us to question whether viruses could also contribute to the degradation of marine DOM and modify its bioavailability. Considering the prominence of phages in the ocean, such studies may unveil an important microbial process that affects the marine carbon cycle.
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Affiliation(s)
- F Lelchat
- Laboratoire BMM, centre Ifremer de Brest, ZI pointe du diable, 29280 Plouzané, France
| | - P Y Mocaer
- Sorbonne Université, CNRS, UMR7144 Adaptation et Diversité en Milieu Marin, Station Biologique de Roscoff, Roscoff, France
| | - T Ojima
- Laboratory of Marine Biotechnology and Microbiology, Graduate School of Fisheries Sciences, Hokkaido University, Minato-cho 3-1-1, Hakodate 041-8611, Japan
| | - G Michel
- Sorbonne Université, CNRS, Laboratoire de Biologie Intégrative des Modèles Marins UMR 8227, Station Biologique de Roscoff, Roscoff, France
| | - G Sarthou
- CNRS, Université de Brest, IRD, Ifremer, UMR 6539/LEMAR/IUEM, Technopôle Brest Iroise, Place Nicolas Copernic, 29280 Plouzané, France
| | - E Bucciarelli
- CNRS, Université de Brest, IRD, Ifremer, UMR 6539/LEMAR/IUEM, Technopôle Brest Iroise, Place Nicolas Copernic, 29280 Plouzané, France
| | - S Cérantola
- Service commun de résonnance magnétique nucléaire, Faculté de science de Brest, Université de Bretagne Occidentale, 6 av. Victor Le Gorgeu, 29238 Brest Cedex 3, France
| | - S Colliec-Jouault
- Laboratoire EM3B, Centre Ifremer Atlantique - Rue de l'Ile d'Yeu - 44311 Nantes, France
| | - C Boisset
- Service commun de chromatographie, CERMAV-CNRS, 601 rue de la chimie, St Martin d'Hère, 38041 Grenoble, France
| | - A-C Baudoux
- Sorbonne Université, CNRS, UMR7144 Adaptation et Diversité en Milieu Marin, Station Biologique de Roscoff, Roscoff, France
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Derguy C, Bouvard M, Michel G, M’Bailara K. The gap between parents’ knowledge and causal beliefs about etiology of autism: A key variable to understand parents’ anxiety. Eur Psychiatry 2020. [DOI: 10.1016/j.eurpsy.2014.09.195] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Autism Spectrum Disorders (ASD) are associated with higher levels of anxiety for parents [1]. Provide medical information about autism etiology is the first step to help parents to understand the child disorder and to cope with it. The medical current community accepts that autism is a neurodevelopmental disorder in which genes play a role but that environmental factors likely contribute as well [2]. This conception can meet parent's beliefs constructed on their cultural values and personal experiences. In line with causal attribution theory [3], it is important to consider to parental beliefs because it can impact the treatment choices and the child developmental trajectory [4]. The Main purpose is to evaluate the consistency between parental knowledge and beliefs about ASD etiology. The second purpose is to explore the impact of consistency on parents’ anxiety. We interviewed through open-ended questions 89 parents of ASD children aged between 3 to 10 years about their knowledge and their beliefs about ASD etiology. A content analysis was performed using the Nvivo10 software. Anxiety is evaluated with the subscale of the Hospital Anxiety and Depression Scale (HADS). In agreement with previous work four categories of causes have been identified: biological (BIO), psychological (PSY), multifactorial etiology (BIO + PSY), others (OT). A percentage of 55.1% of parents is consistent between their knowledge and beliefs about ASD etiology while 43.8% are inconsistent. Parent anxiety is significantly higher (T (71.91) = 2.34; P < 0.05) when knowledge and beliefs are inconsistent than when they are consistent. This study demonstrates the deleterious impact of inconsistency between knowledge and beliefs about ASD etiology, on parental anxiety. In order to provide relevant support for parents, information delivered after diagnosis must consider pre-existing parental beliefs. A systematic assessment of parental beliefs would adjust the information provided after the diagnosis.
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Michel G, Martinez-Vinson C, Hugot JP, Ecochard-Dugelay E. Comportement alimentaire des enfants et adolescents atteints d’une maladie inflammatoire chronique en période de rémission clinique et biologique sous biothérapie. NUTR CLIN METAB 2020. [DOI: 10.1016/j.nupar.2020.02.422] [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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Meyer E, Michel G. Étude des comportements parentaux dans les liens entre symptomatologie du TDAH et comportements agressifs chez les enfants entre 3 et 6 ans. Annales Médico-psychologiques, revue psychiatrique 2020. [DOI: 10.1016/j.amp.2020.01.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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28
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Garcia M, Rouchy E, Galéra C, Tzourio C, Michel G. The relation between ADHD symptoms, perceived stress and binge drinking in college students. Psychiatry Res 2020; 284:112689. [PMID: 31740216 DOI: 10.1016/j.psychres.2019.112689] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 11/09/2019] [Accepted: 11/10/2019] [Indexed: 10/25/2022]
Abstract
Binge drinking is a major public health problem associated with various negative short-term and long-term clinical and social outcomes. If there is evidence to suggest a relationship between ADHD and alcohol use in college students, no study has investigated the role of ADHD symptomatology in binge drinking. Thus, this research was designed to explore the relative contributions of inattention and hyperactivity/impulsivity symptoms to binge drinking in a sample of French college students while controlling for effects of perceived stress. Participants (N = 7011; mean age = 20.9; 74.9% of females) completed self-report surveys assessing ADHD symptoms, perceived stress, sociodemographic characteristics, and binge drinking frequency. Multinomial logistic regression revealed significant associations between higher levels of ADHD symptoms in general, but not perceived stress, and increasing frequency of binge drinking. Moreover, higher levels of inattention and hyperactivity/impulsivity symptoms were independently associated with greater frequency of binge drinking. The association was stronger between high rates of binge drinking and inattention than for hyperactivity/impulsivity. These findings, which remained statistically significant after adjusting for a range of potential confounders (including perceived stress), suggest that the presence of ADHD symptoms may be an important factor related to binge drinking.
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Affiliation(s)
- Mathieu Garcia
- Institut de Sciences Criminelles et de la Justice (ISCJ), University of Bordeaux, 4 rue du Maréchal Joffre, Bordeaux 33075, France; Department of Psychology, University of Bordeaux, France.
| | - Emma Rouchy
- Institut de Sciences Criminelles et de la Justice (ISCJ), University of Bordeaux, 4 rue du Maréchal Joffre, Bordeaux 33075, France; Department of Psychology, University of Bordeaux, France
| | - Cédric Galéra
- Institut de Santé Publique d'Epidémiologie et de Développement (ISPED), University of Bordeaux, France
| | - Christophe Tzourio
- Inserm U1219, Bordeaux Population Health (BPH), University of Bordeaux, France
| | - Grégory Michel
- Institut de Sciences Criminelles et de la Justice (ISCJ), University of Bordeaux, 4 rue du Maréchal Joffre, Bordeaux 33075, France; Department of Psychology, University of Bordeaux, France; Pôle de Santé saint Genès, Bordeaux, France
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29
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Maire J, Galera C, Bioulac S, Bouvard M, Michel G. Emotional lability and irritability have specific associations with symptomatology in children with attention deficit hyperactivity disorder. Psychiatry Res 2020; 285:112789. [PMID: 32014627 DOI: 10.1016/j.psychres.2020.112789] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 01/10/2020] [Accepted: 01/12/2020] [Indexed: 11/20/2022]
Abstract
Irritability and emotional lability have been shown to be severity and impairment factors in community and clinical sample studies and are frequent comorbid features of Attention Deficit Hyperactivity Disorder (ADHD). However, while irritability and emotional lability seem to be closely linked, the differential effect of these two features has received little attention. This study assessed the distinct associations of irritability and emotional lability on symptomatology in children with ADHD. One hundred and eight children diagnosed with ADHD participated in the study. Children were rated by parents on ADHD and comorbid symptomatology with the Conners Rating Scale - Revised. Irritability was the most significant predictive factor of the severity of anxiety and oppositional symptoms. Regarding emotional lability, it was significantly predictive of the severity of hyperactivity symptoms. While emotional lability shares common theoretical characteristics with irritability, each seems to be associated with specific areas. Irritability is a symptom of Oppositional Defiant Disorder, a frequent ADHD comorbidity, and also seems to be related to internalizing disorder (e.g. anxiety). Emotional lability seems to be related to ADHD severity symptoms per se. Both could be clinically informative in the diagnosis of ADHD and its comorbidities.
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Affiliation(s)
| | - Cédric Galera
- Department "Health and achievement in the young", INSERM U1219, University of Bordeaux, France; Child and Adolescent Psychiatry Department, Charles Perrens Hospital, Bordeaux, France
| | | | - Manuel Bouvard
- Child and Adolescent Psychiatry Department, Charles Perrens Hospital, Bordeaux, France
| | - Grégory Michel
- Institut de Sciences Criminelles et de la Justice (ISCJ), University of Bordeaux, Bordeaux, France
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Garcia M, Aubron V, Salla J, Hanne‐Poujade S, Teymoori A, Michel G. Association between adolescent rough-and-tumble play and conduct problems, substance use, and risk-taking behaviors: Findings from a school-based sample. Aggress Behav 2020; 46:37-48. [PMID: 31556138 DOI: 10.1002/ab.21866] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Revised: 08/13/2019] [Accepted: 08/26/2019] [Indexed: 12/27/2022]
Abstract
Rough-and-tumble play (RTP), also known as play fighting, is a common form of play frequently reported and studied by researchers. However, one important limitation of past research in the area of RTP has been the neglect of the adolescence period. Consequently, little is known about the function of adolescent RTP as well as about clinical characteristics of youth who engage in this activity after childhood. In a school-based sample of 1,771 middle school students (ages 9-16 years), the current study sought to address this gap by examining, via bivariate and multivariate logistic regression analyses, the potential cross-sectional associations of adolescent RTP with (a) selected demographic variables, (b) conduct problem symptoms, (c) substance use, and (d) risk-taking behaviors, including adjustment for several demographic confounders. Results indicated that adolescents reporting higher rates of conduct problem symptoms were more likely to report a recent participation in RTP. In addition, substance use (experimentation and current consumption of tobacco, alcohol, and marijuana) and risk behaviors assessed all were strongly associated with an increased likelihood of reporting an engagement in RTP. This finding suggests that participation in this activity probably implicates particular phenotypic characteristics including the propensity to engage in health-damaging behaviors. But the most profound issue raised by this research concerns the strong relationship between RTP and great levels of conduct disorder symptoms, suggesting a possible significant change in the functional significance of RTP in the adolescence period.
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Affiliation(s)
- Mathieu Garcia
- Institut de Sciences Criminelles et de la Justice (ISCJ)University of BordeauxBordeaux France
| | | | - Julie Salla
- Team Healthy, Inserm U1219, Bordeaux Population Health CenterUniversity of BordeauxBordeaux France
| | - Sandrine Hanne‐Poujade
- Team Healthy, Inserm U1219, Bordeaux Population Health CenterUniversity of BordeauxBordeaux France
| | - Ali Teymoori
- Team Healthy, Inserm U1219, Bordeaux Population Health CenterUniversity of BordeauxBordeaux France
| | - Grégory Michel
- Institut de Sciences Criminelles et de la Justice (ISCJ)University of BordeauxBordeaux France
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Abstract
Objective: The objective of this study was to examine the independent association between inattention and hyperactivity/impulsivity symptoms and perceived stress among French college students. Method: Participants (N = 6,951) completed self-report surveys assessing ADHD symptoms, perceived stress, and sociodemographic characteristics. Multinomial logistic regression models were used to evaluate the association between ADHD symptoms and perceived stress. Results: Participants had a mean age of 20.8 years, and 75.6% were female. We found significant associations between increasing levels of inattention and hyperactivity/impulsivity symptoms and high level of perceived stress after adjustment for confounding variables. The association was stronger for inattention (odds ratio [OR] = 4.58, 95% confidence interval [CI] = [4.02, 5.22]) than for hyperactivity/impulsivity symptoms (OR = 1.21, 95% CI = [1.05 to 1.39]). Conclusion: Higher levels of inattention and hyperactivity/impulsivity were independently associated with perceived stress in French college students. This association was mainly driven by inattention. Screenings to better detect ADHD symptoms should be implemented in universities.
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Affiliation(s)
| | | | | | - Christophe Tzourio
- University of Bordeaux, France.,Centre Hospitalier Universitaire de Bordeaux, France
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Michel G, Meyer E, Grabé M, Meriau V, Cuadrado J, Poujade SH, Garcia M, Salla J. Effets de la « Mindfulness » sur l’anxiété, le bien-être et les aptitudes de pleine conscience chez des élèves scolarisés du CE2 au CM2. Annales Médico-psychologiques, revue psychiatrique 2019. [DOI: 10.1016/j.amp.2019.09.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Rouchy E, Garcia M, Soulet E, Michel G. Étude exploratoire sur le rôle des antécédents de tentatives de suicide et de l’agressivité pro et réactive dans le risque de récidive violente auprès d’une population d’hommes incarcérés. Annales Médico-psychologiques, revue psychiatrique 2019. [DOI: 10.1016/j.amp.2019.08.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Boumaza K, Michel G, Salaud C, Bossard C, Espitalier F, Malard O. Peripheral neck nerve tumor: A 73-case study and literature review. Eur Ann Otorhinolaryngol Head Neck Dis 2019; 136:455-460. [PMID: 31537489 DOI: 10.1016/j.anorl.2019.09.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
OBJECTIVES Peripheral neck nerve tumors are rare and mostly benign neoplasms. The exceptional malignant forms are very aggressive, and diagnosis is difficult. The objective of this study was to evaluate diagnostic and therapeutic management and identify possible predictive factors. MATERIAL AND METHODS A retrospective study was conducted of 73 patients treated for peripheral neck nerve tumor between 1995 and 2015. RESULTS Mean age was 44years. The main presenting symptom was a cervical mass, isolated or associated with signs related to the affected nerve structure. Diagnosis was suspected by slow progression of a firm mass, featuring T1 hyposignal and T2 hypersignal on magnetic resonance imaging. Surgery was performed in 99% of cases, completed by adjuvant chemotherapy in case of malignant neuroblastic tumor. Type 1 neurofibromatosis and sudden increase in mass with or without associated pain suggested malignant transformation. Age below 10years suggested neuroblastic tumor. CONCLUSION Neck nerve tumors are very often benign with low degenerative potential. Surgery is the treatment of choice after risk/benefit analysis. However, there is no clearly defined consensus regarding the timing of surgery for these lesions.
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Affiliation(s)
- K Boumaza
- Service d'ORL et de Chirurgie Cervico-Faciale, CHU de Nantes Hôtel-Dieu, 1, place A. Ricordeau, BP 1005, 44093 Nantes Cedex 01, France
| | - G Michel
- Service d'ORL et de Chirurgie Cervico-Faciale, CHU de Nantes Hôtel-Dieu, 1, place A. Ricordeau, BP 1005, 44093 Nantes Cedex 01, France
| | - C Salaud
- Service de Neurotraumatologie/Neurochirugie, Centre Hospitalier Universitaire de Nantes, Hôtel-Dieu, 1, place A. Ricordeau, BP 1005, 44093 Nantes Cedex 01, France
| | - C Bossard
- Service d'Anatomopathologie, Centre Hospitalier Universitaire de Nantes, Hôtel-Dieu, 1, place A. Ricordeau, BP 1005, 44093 Nantes Cedex 01, France
| | - F Espitalier
- Service d'ORL et de Chirurgie Cervico-Faciale, CHU de Nantes Hôtel-Dieu, 1, place A. Ricordeau, BP 1005, 44093 Nantes Cedex 01, France
| | - O Malard
- Service d'ORL et de Chirurgie Cervico-Faciale, CHU de Nantes Hôtel-Dieu, 1, place A. Ricordeau, BP 1005, 44093 Nantes Cedex 01, France.
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Schwing A, Pomares C, Majoor A, Boyer L, Marty P, Michel G. Leishmania infection: Misdiagnosis as cancer and tumor-promoting potential. Acta Trop 2019; 197:104855. [PMID: 30529443 DOI: 10.1016/j.actatropica.2018.12.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Revised: 12/03/2018] [Accepted: 12/06/2018] [Indexed: 12/17/2022]
Abstract
Given the prevalence of cancer and leishmaniasis worldwide, the presence of these two pathologies in the same tissue sample may be merely fortuitous. The clinical outcome of both diseases is under the control of innate and adaptive immunity, and in both cases these progressive diseases are characterized by an impaired host Th1 response. As a consequence, the Th2 cytokine microenvironment occurring in progressive leishmaniasis may potentially promote tumor cell proliferation and vice versa. On the other hand, clinical aspects of subclinical cutaneous or visceral leishmaniasis sometimes closely resemble those observed in various neoplasms thus leading to misdiagnosis. In this review, we present recent findings on the association between leishmaniasis and malignant disorders. Our review includes HIV positive, HIV negative subjects and patients whose HIV status has not been established. Leishmaniasis mimicking a malignant disorder was confirmed and extended to unreported neoplastic disorders including squamous cell carcinoma, T-cell and B-cell lymphoma, oral and intranasal tumors and granulomas. Thus, leishmaniasis should be considered in the differential diagnosis and course of various cancers in Leishmania endemic areas or in patients with travel history to these areas. We also listed recent reports showing that Leishmania can promote cancer development in immunocompromised as well as in immunocompetent patients. The potential mechanisms supporting this promoting effect are discussed.
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Arsandaux J, Michel G, Tournier M, Tzourio C, Galéra C. Is self-esteem associated with self-rated health among French college students? A longitudinal epidemiological study: the i-Share cohort. BMJ Open 2019; 9:e024500. [PMID: 31167858 PMCID: PMC6561426 DOI: 10.1136/bmjopen-2018-024500] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
OBJECTIVES The aim of the study was to estimate the association between self-esteem and subsequent self-rated health during college years, taking into account a wide range of potential confounders. DESIGN Prospective longitudinal study. SETTING The French i-Share cohort. PARTICIPANTS The sample consisted of 1011 college students. PRIMARY AND SECONDARY OUTCOME MEASURES The association between self-esteem and later self-rated health was evaluated using multivariate modelling.Data regarding self-rated health, global self-esteem and demographic, educational, social, behavioural, environmental and financial characteristics were collected through an internet-based questionnaire. RESULTS The 1011 participants had a median age of 21.9 years and 79% (795/1011) were females. Self-rated health was assessed a median of 8 months after the self-esteem measurement. Twenty per cent of the students declared average to very poor health (203/1011). Students with higher levels of self-esteem were more likely to declare good or very good self-rated health (adjusted OR=1.40, 95% CI 1.15 to 1.72, p value=0.001). Other factors associated with good or very good self-rated health were low body mass index, a comfortable financial situation during childhood and three personality traits (low persistence and harm avoidance and high cooperativeness). CONCLUSIONS This study offers novel findings on the impact of self-esteem on self-rated health among college students. Interventions targeting self-esteem should be experimented during university years in order to improve health outcomes.
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Affiliation(s)
- Julie Arsandaux
- Team HEALTHY, UMR 1219, F-33000, University of Bordeaux, Inserm, Bordeaux Population Health Research Center, Bordeaux, France
| | - Grégory Michel
- Team HEALTHY, UMR 1219, F-33000, University of Bordeaux, Inserm, Bordeaux Population Health Research Center, Bordeaux, France
| | - Marie Tournier
- Team HEALTHY, UMR 1219, F-33000, University of Bordeaux, Inserm, Bordeaux Population Health Research Center, Bordeaux, France
- Centre Hospitalier Perrens, Bordeaux, France
| | - Christophe Tzourio
- Team HEALTHY, UMR 1219, F-33000, University of Bordeaux, Inserm, Bordeaux Population Health Research Center, Bordeaux, France
| | - Cédric Galéra
- Team HEALTHY, UMR 1219, F-33000, University of Bordeaux, Inserm, Bordeaux Population Health Research Center, Bordeaux, France
- Centre Hospitalier Perrens, Bordeaux, France
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Kelly K, Daw S, Mauz-Körholz C, Mascarin M, Michel G, Cooper S, Beishuizen A, Leger K, Garaventa A, Buffardi S, Brugières L, Harker-Murray P, Cole P, Drachtman R, Manley T, Francis S, Sacchi M, Leblanc T. RESPONSE-ADAPTED TREATMENT WITH NIVOLUMAB AND BRENTUXIMAB VEDOTIN IN YOUNG PATIENTS WITH RELAPSED/REFRACTORY CLASSICAL HODGKIN LYMPHOMA: CHECKMATE 744 SUBGROUP ANALYSES. Hematol Oncol 2019. [DOI: 10.1002/hon.26_2629] [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: 11/12/2022]
Affiliation(s)
- K.M. Kelly
- Department of Pediatric Oncology; Roswell Park Comprehensive Cancer Center; Buffalo United States
| | - S. Daw
- Paediatric and Adolescent Haemato-Oncology; University College Hospital; London United Kingdom
| | - C. Mauz-Körholz
- Department of Pediatric Hematology and Oncology; University Hospital Justus Liebig University; Giessen Germany
| | - M. Mascarin
- AYA and Pediatric Radiotherapy Unit; IRCCS Centro di Riferimento Oncologico; Aviano Italy
| | - G. Michel
- Service d'Hématologie pédiatrique; CHU de Marseille - Hôpital de la Timone; Maresille France
| | - S. Cooper
- Pediatric Oncology; Johns Hopkins Hospital; Baltimore United States
| | - A. Beishuizen
- Pediatric Oncology/Hematology; Princess Máxima Center for Pediatric Oncology; Utrecht Netherlands
| | - K.J. Leger
- Hematology-Oncology; Seattle Children's Hospital; Seattle United States
| | - A. Garaventa
- UOC Oncologia; Ematologia e Trapianto di Midollo, IRCCS Istituto Giannina Gaslini; Genoa Italy
| | - S. Buffardi
- Paediatric Haemato-Oncology; Santobono-Pausilipon Hospital; Naples Italy
| | - L. Brugières
- Department of Paediatrics; Institut Gustave Roussy; Villejuif France
| | - P. Harker-Murray
- Pediatric Hematology-Oncology; Children's Hospital of Wisconsin; Milwaukee United States
| | - P.D. Cole
- Division of Pediatric Hematology/Oncology; Rutgers Cancer Institute of New Jersey; New Brunswick United States
| | - R.A. Drachtman
- Division of Pediatric Hematology/Oncology; Rutgers Cancer Institute of New Jersey; New Brunswick United States
| | - T. Manley
- Seattle Genetics; Bothell United States
| | - S. Francis
- Bristol-Myers Squibb; Princeton United States
| | - M. Sacchi
- Bristol-Myers Squibb; Princeton United States
| | - T. Leblanc
- Service d'Hématologie Pédiatrique; Hôpital Robert-Debré APHP; Paris France
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Carriere C, Michel G, Féart C, Pellay H, Onorato O, Barat P, Thibault H. Relationships between emotional disorders, personality dimensions, and binge eating disorder in French obese adolescents. Arch Pediatr 2019; 26:138-144. [PMID: 30898314 DOI: 10.1016/j.arcped.2019.02.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 11/26/2018] [Accepted: 02/09/2019] [Indexed: 02/06/2023]
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Wäge J, Strassert JFH, Landsberger A, Loick-Wilde N, Schmale O, Stawiarski B, Kreikemeyer B, Michel G, Labrenz M. Microcapillary sampling of Baltic Sea copepod gut microbiomes indicates high variability among individuals and the potential for methane production. FEMS Microbiol Ecol 2019; 95:5347944. [PMID: 30785612 DOI: 10.1093/femsec/fiz024] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [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: 09/10/2018] [Accepted: 02/19/2019] [Indexed: 11/13/2022] Open
Abstract
The paradox of methane oversaturation in oxygenated surface water has been described in many pelagic systems and still raises the question of the source. Temora sp. and Acartia sp. commonly dominate the surface and subsurface waters of the central Baltic Sea. It is hypothesised that their gut microbiome at least partly contributes to the methane anomaly in this ecosystem. However, the potential pathway for this methane production remains unclear. Using a microcapillary technique, we successfully overcame the challenge of sampling the gut microbiome of copepods <1 mm. 16S rRNA gene amplicon sequencing revealed differences among the dominant bacterial communities associated with Temora sp. (Actinobacteria, Betaproteobacteria and Flavobacteriia) and Acartia sp. (Actinobacteria, Alphaproteobacteria and Betaproteobacteria) and the surrounding water (Proteobacteria, Cyanobacteria and Verrucomicrobia), but also intraspecific variability. In both copepods, gut-specific prokaryotic taxa and indicative species for methane production pathways (methanogenesis, dimethylsulfoniopropionate or methylphosphonate) were present. The relative abundance of archaea and methanogens was investigated using droplet digital polymerase chain reaction and showed a high variability among copepod individuals, underlining intra- and interspecific differences in copepod-associated prokaryotic communities. Overall, this work highlights that the guts of Temora sp. and Acartia sp. have the potential for methane production but are probably no hotspot.
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Affiliation(s)
- J Wäge
- Leibniz Institute for Baltic Sea Research, Rostock, Germany
| | - J F H Strassert
- Department of Organismal Biology, Uppsala University, Uppsala, Sweden
| | | | - N Loick-Wilde
- Leibniz Institute for Baltic Sea Research, Rostock, Germany
| | - O Schmale
- Leibniz Institute for Baltic Sea Research, Rostock, Germany
| | - B Stawiarski
- Leibniz Institute for Baltic Sea Research, Rostock, Germany
| | - B Kreikemeyer
- University Hospital Rostock, Department of Medical Microbiology and Hospital Hygiene, Rostock, Germany
| | - G Michel
- Transgenic Technologies Charité , Berlin, Germany
| | - M Labrenz
- Leibniz Institute for Baltic Sea Research, Rostock, Germany
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Michel G, Chini GP. Multiple scales analysis of slow-fast quasi-linear systems. Proc Math Phys Eng Sci 2019; 475:20180630. [PMID: 31007548 DOI: 10.1098/rspa.2018.0630] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Accepted: 02/07/2019] [Indexed: 11/12/2022] Open
Abstract
This article illustrates the application of multiple scales analysis to two archetypal quasi-linear systems; i.e. to systems involving fast dynamical modes, called fluctuations, that are not directly influenced by fluctuation-fluctuation nonlinearities but nevertheless are strongly coupled to a slow variable whose evolution may be fully nonlinear. In the first case, fast waves drive a slow, spatially inhomogeneous evolution of their celerity field. Multiple scales analysis confirms that, although the energy E, the angular frequency ω and the modal structure of the waves evolve, the wave action E/ω is conserved in the absence of forcing and dissipation. In the second system, the fast modes undergo an instability that is saturated through a feedback on the slow variable. A new multi-scale analysis is developed to treat this case. The key technical point, confirmed by the analysis, is that the fluctuation energy and mode structure evolve slowly to ensure that the slow field remains in a state of near marginal stability. These two model systems appear to be generic, being representative of many if not all quasi-linear systems. In each case, numerical simulations of both the full and reduced dynamical systems are performed to highlight the accuracy and efficiency of the multiple scales approach. Python codes are provided as electronic supplementary material.
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Affiliation(s)
- G Michel
- Laboratoire de Physique Statistique, École Normale Supérieure, CNRS, Université P. et M. Curie, Université Paris Diderot, Paris 75005, France
| | - G P Chini
- Department of Mechanical Engineering and Program in Integrated Applied Mathematics, University of New Hampshire, Durham, NH 03824, USA
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Gendre A, Rives P, Michel G, Boutoille D, Espitalier F, Malard O. Intraoperative bacterial analysis in nasal polyposis: Clinical and functional impact. Eur Ann Otorhinolaryngol Head Neck Dis 2019; 136:155-160. [PMID: 30876852 DOI: 10.1016/j.anorl.2019.02.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
BACKGROUND The impact of Staphylococcus aureus on onset of nasal polyposis has been the focus of numerous studies, but there have been few studies of other germs found in the ethmoid of operated patients or of their impact on post-operative results. MATERIAL AND METHODS All patients undergoing endoscopic radical ethmoidectomy for nasal polyposis in the teaching hospital of Nantes (France) between 2006 and 2016 had intraoperative ethmoid cavity bacterial sampling. Phenotypic characteristics, pre- and post-operative symptoms and endoscopic findings were analyzed. Mann-Whitney tests and Kruskal-Wallis correlation analysis were used to assess clinical/bacteriological correlations. OBJECTIVES The main objective was to describe bacterial colonization of patients undergoing surgery for nasal polyposis, and to assess correlations with phenotypic features, functional results and postoperative clinical course. RESULTS One hundred and seven patients were included. A total of 26% were not infected, 55% mono-infected and 19% multi-infected. In 27.3%, staphylococci were isolated; in 30.5%, isolates were gram-negative bacilli. There were no significant correlations between presence or type of pathogen and symptom profile. CONCLUSION This study confirmed the high rate of pathogenic bacteria in nasal cavities in case of polyposis, with high frequencies of S. aureus but also of gram-negative bacilli, raising the question of their involvement in the inflammatory reactions underlying the nasal polyposis.
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Affiliation(s)
- A Gendre
- Service d'ORL et de chirurgie cervico-faciale, centre hospitalier universitaire de Nantes, Hôtel-Dieu, 1, Place A.-Ricordeau, BP 1005, 44093 Nantes Cedex 01, France
| | - P Rives
- Service d'ORL et de chirurgie cervico-faciale, centre hospitalier universitaire de Nantes, Hôtel-Dieu, 1, Place A.-Ricordeau, BP 1005, 44093 Nantes Cedex 01, France
| | - G Michel
- Service d'ORL et de chirurgie cervico-faciale, centre hospitalier universitaire de Nantes, Hôtel-Dieu, 1, Place A.-Ricordeau, BP 1005, 44093 Nantes Cedex 01, France
| | - D Boutoille
- Service des maladies infectieuses, centre hospitalier universitaire de Nantes, Hôtel-Dieu, 1, Place A.-Ricordeau, BP 1005, 44093 Nantes Cedex 01, France
| | - F Espitalier
- Service d'ORL et de chirurgie cervico-faciale, centre hospitalier universitaire de Nantes, Hôtel-Dieu, 1, Place A.-Ricordeau, BP 1005, 44093 Nantes Cedex 01, France
| | - O Malard
- Service d'ORL et de chirurgie cervico-faciale, centre hospitalier universitaire de Nantes, Hôtel-Dieu, 1, Place A.-Ricordeau, BP 1005, 44093 Nantes Cedex 01, France.
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Abstract
OBJECTIVES To examine the demographic and health risk factors associated with participation in the choking game (CG), a dangerous and potentially fatal strangulation activity in which pressure is applied to the carotid artery to temporarily limit blood flow and oxygen. METHODS We obtained data from 2 cross-sectional studies realized respectively in 2009 and 2013 among French middle school students. The 2009 (n = 746) and 2013 (n = 1025) data sets were merged (N = 1771), and multivariate modeling was conducted to examine demographic and clinical characteristics of youth reporting a lifetime participation in the CG. The 2 studies included questions about risk-taking behaviors and substance use, and standardized assessments were used to collect conduct disorder symptoms and depressive symptoms. RESULTS In the merged 2009 and 2013 data set, the lifetime prevalence of CG participation was 9.7%, with no statistically significant differences between boys and girls. A multivariate logistic regression revealed that higher levels of conduct disorder symptoms (odds ratio: 2.33; P < .001) and greater rates of depressive symptoms (odds ratio: 2.18; P < .001) were both significantly associated with an increased likelihood of reporting CG participation. CONCLUSIONS The significant relationship between elevated levels of depressive symptoms and participation in the CG sheds new light on the function of self-asphyxial activities. However, with the finding that higher rates of conduct disorder symptoms were the most important predictor of CG participation, it is suggested that the profile and the underlying motivations of youth who engage in this activity should be reexamined.
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Affiliation(s)
- Grégory Michel
- Inserm U1219, Team Healthy, Bordeaux Population Health Center, University of Bordeaux, Bordeaux, France;
| | - Mathieu Garcia
- Inserm U1219, Team Healthy, Bordeaux Population Health Center, University of Bordeaux, Bordeaux, France
| | - Valérie Aubron
- Department of Psychology, University of Tours, Tours, France
| | | | - Julie Salla
- Inserm U1219, Team Healthy, Bordeaux Population Health Center, University of Bordeaux, Bordeaux, France
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Malard O, Michel G, Espitalier F. Outpatient management in plastic and reconstructive head and neck surgery in France. Eur Ann Otorhinolaryngol Head Neck Dis 2019; 136:29-32. [DOI: 10.1016/j.anorl.2018.11.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Soulet E, Garcia M, Rouchy E, Delannoy D, Cochez F, Pham T, Michel G. Psychopathie et risque de récidive sexuelle : analyse critique de la littérature scientifique. Annales Médico-psychologiques, revue psychiatrique 2018. [DOI: 10.1016/j.amp.2018.09.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Cuadrado J, Morin J, Hernandez P, Yubero E, Bégin C, Michel G. Psychopathologie de la dysmorphie musculaire : analyse critique de la littérature internationale. Annales Médico-psychologiques, revue psychiatrique 2018. [DOI: 10.1016/j.amp.2018.09.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Kelada L, Wakefield CE, Doolan EL, Drew D, Wiener L, Michel G, Cohn RJ. Grandparents of children with cancer: a controlled comparison of perceived family functioning. Support Care Cancer 2018; 27:2087-2094. [PMID: 30229340 DOI: 10.1007/s00520-018-4468-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Accepted: 09/10/2018] [Indexed: 12/01/2022]
Abstract
PURPOSE Grandparents can be profoundly emotionally affected when a grandchild is diagnosed with cancer. They also often provide invaluable support for the family (e.g., caring for the sick child and/or siblings). Multigenerational family functioning may therefore change. Limited research has assessed grandparents' perspectives after their grandchild is diagnosed with cancer. In this study, we aimed to (1) assess differences in perceived family functioning among grandparents of a child with cancer and grandparents of healthy children and (2) assess the cancer-specific and demographic factors related to perceived family functioning in grandparents of a grandchild with cancer. PROCEDURE Grandparents of a child with cancer (n = 89) and grandparents of healthy children (n = 133) completed the general functioning, communication, and problem-solving scales of the Family Assessment Device. We used multilevel models with a random intercept to detect (1) between-group differences and (2) identify factors related to perceived family functioning among grandparents with a grandchild with cancer. RESULTS Grandparents with a grandchild with cancer reported poorer family functioning than grandparents with healthy grandchildren. Among the grandparents with a grandchild with cancer, impairments in family functioning were correlated with fewer years since diagnosis, providing care to their sick grandchild and/or siblings and living far away from the sick grandchild. CONCLUSIONS The detrimental impact of childhood cancer likely extends beyond the immediate family members. Including grandparents in interventions-beginning at diagnosis-to reduce distress and increase cohesion for families of a child with cancer is warranted, particularly for grandparents who provide care to their sick grandchild or siblings.
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Affiliation(s)
- Lauren Kelada
- School of Women's and Children's Health, UNSW Sydney, Kensington, NSW, 2031, Australia. .,Kids Cancer Centre, Sydney Children's Hospital, High Street, Randwick, NSW, 2031, Australia.
| | - C E Wakefield
- School of Women's and Children's Health, UNSW Sydney, Kensington, NSW, 2031, Australia.,Kids Cancer Centre, Sydney Children's Hospital, High Street, Randwick, NSW, 2031, Australia
| | - E L Doolan
- School of Women's and Children's Health, UNSW Sydney, Kensington, NSW, 2031, Australia.,Kids Cancer Centre, Sydney Children's Hospital, High Street, Randwick, NSW, 2031, Australia
| | - D Drew
- Kids Cancer Centre, Sydney Children's Hospital, High Street, Randwick, NSW, 2031, Australia
| | - L Wiener
- Behavioral Health Core, National Cancer Institute, Bethesda, MD, 20892, USA
| | - G Michel
- Department of Health Sciences and Health Policy, University of Lucerne, Frohburgstrasse 3, 6002, Lucerne, Switzerland.,Institute of Social and Preventive Medicine, University of Bern, Finkenhubelweg 11, 3012, Bern, Switzerland
| | - R J Cohn
- School of Women's and Children's Health, UNSW Sydney, Kensington, NSW, 2031, Australia.,Kids Cancer Centre, Sydney Children's Hospital, High Street, Randwick, NSW, 2031, Australia
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Bonaventure A, Orsi L, Rudant J, Goujon-Bellec S, Leverger G, Baruchel A, Bertrand Y, Nelken B, Pasquet M, Michel G, Sirvent N, Chastagner P, Ducassou S, Thomas C, Besse C, Hémon D, Clavel J. Genetic polymorphisms of Th2 interleukins, history of asthma or eczema and childhood acute lymphoid leukaemia: Findings from the ESCALE study (SFCE). Cancer Epidemiol 2018; 55:96-103. [PMID: 29883839 DOI: 10.1016/j.canep.2018.05.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Revised: 05/03/2018] [Accepted: 05/07/2018] [Indexed: 01/15/2023]
Abstract
BACKGROUND Previous studies on the putative role of allergy in the aetiology of childhood leukaemia have reported contradictory results. The present study aimed to analyse the relation between a medical history of asthma or eczema and childhood acute lymphoid leukaemia (ALL) in light of potential candidate gene-environment interactions. METHODS Analyses were based on a subset of 434 cases of ALL and 442 controls successfully genotyped and of European ancestry children enrolled in a French population-based case-control study conducted in 2003-2004. Information about medical history was obtained during a standardized interview with the mothers. Candidate polymorphisms in genes of the Th2 cytokines IL4, IL10, IL13 and IL4-receptor, were genotyped or imputed. RESULTS None of the variant alleles were directly associated with childhood acute lymphoid leukaemia. A medical history of asthma or eczema was reported more often in the control group (OR = 0.7 [0.5-1.0]). This association was mostly seen in the group of children not carrying the IL13-rs20541 variant allele (Interaction Odds Ratio IOR 1.9, p-interaction = 0.07) and in those carrying the IL10 triple variant haplotype (IOR 0.5, p-interaction = 0.04). No interaction was observed with the candidate polymorphisms in IL4 and IL4R. CONCLUSION This study provides a new insight into the relationship between allergic symptoms and childhood acute lymphoid leukaemia, by suggesting this inverse association could be limited to children carrying certain genetic polymorphisms. If confirmed, these results could help better understand the biological mechanisms involved in the development of childhood acute lymphoid leukaemia.
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Affiliation(s)
- A Bonaventure
- INSERM, Université Paris-Descartes, Université Sorbonne-Paris-Cité, CRESS U1153, EPICEA-Epidémiologie des cancers de l'enfant et de l'adolescent, Villejuif, France; INSERM, RNCE-National Registry of Childhood Cancers, Villejuif, France; Cancer Survival Group, Department of Non-Communicable Disease Epidemiology, London School of Hygiene & Tropical Medicine, London, United Kingdom.
| | - L Orsi
- INSERM, Université Paris-Descartes, Université Sorbonne-Paris-Cité, CRESS U1153, EPICEA-Epidémiologie des cancers de l'enfant et de l'adolescent, Villejuif, France
| | - J Rudant
- INSERM, Université Paris-Descartes, Université Sorbonne-Paris-Cité, CRESS U1153, EPICEA-Epidémiologie des cancers de l'enfant et de l'adolescent, Villejuif, France; INSERM, RNCE-National Registry of Childhood Cancers, Villejuif, France
| | - S Goujon-Bellec
- INSERM, Université Paris-Descartes, Université Sorbonne-Paris-Cité, CRESS U1153, EPICEA-Epidémiologie des cancers de l'enfant et de l'adolescent, Villejuif, France; INSERM, RNCE-National Registry of Childhood Cancers, Villejuif, France
| | - G Leverger
- AP-HP, Hôpital Armand Trousseau, Université Paris 6 Pierre et Marie Curie, Paris, France
| | - A Baruchel
- AP-HP, Hôpital Robert Debré, Université Paris 7 Denis Diderot, Paris, France
| | - Y Bertrand
- Institut d'Hémato-Oncologie Pédiatrique, Lyon, France
| | - B Nelken
- CHU de Lille, Hôpital Jeanne de Flandre, Lille, France
| | - M Pasquet
- Hôpital des Enfants, Toulouse, France
| | - G Michel
- AP-HM, Hôpital la Timone, Marseille, France
| | - N Sirvent
- Hôpital Arnaud de Villeneuve, CHRU, Montpellier, France
| | | | - S Ducassou
- Haematology and Oncology, Childrens' Hospital, Pellegrin, Bordeaux University Hospital, Bordeaux, France
| | - C Thomas
- Service d'onco-hématologie pédiatrique, CHU de Nantes, France
| | - C Besse
- Commissariat à l'Energie Atomique (CEA) Genomics Institute-Centre National de Génotypage, Evry Cedex, France
| | - D Hémon
- INSERM, Université Paris-Descartes, Université Sorbonne-Paris-Cité, CRESS U1153, EPICEA-Epidémiologie des cancers de l'enfant et de l'adolescent, Villejuif, France
| | - J Clavel
- INSERM, Université Paris-Descartes, Université Sorbonne-Paris-Cité, CRESS U1153, EPICEA-Epidémiologie des cancers de l'enfant et de l'adolescent, Villejuif, France; INSERM, RNCE-National Registry of Childhood Cancers, Villejuif, France
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Brakni R, Ali Ahmed M, Burger P, Schwing A, Michel G, Pomares C, Hasseine L, Boyer L, Fernandez X, Landreau A, Michel T. UHPLC-HRMS/MS Based Profiling of Algerian Lichens and Their Antimicrobial Activities. Chem Biodivers 2018; 15:e1800031. [PMID: 29505125 DOI: 10.1002/cbdv.201800031] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Accepted: 03/01/2018] [Indexed: 12/29/2022]
Abstract
Lichens are complex symbiotic organisms able to produce a vast array of compounds. The Algerian lichen diversity has only prompted little interest even given the 1085 species listed. Herein, the chemodiversity of four Algerian lichens including Cladonia rangiformis, Ramalina farinaceae, R. fastigiata, and Roccella phycopsis was investigated. A dereplication strategy, using ultra high performance liquid chromatography-high resolution-electrospray ionization-mass spectrometry (UHPLC-HRMS/MS), was carried out for a comprehensive characterization of their substances including phenolics, depsides, depsidones, depsones, dibenzofurans, and aliphatic acids. Some known compounds were identified for the first time in some species. Additionally, the lichenic extracts were evaluated for their antifungal and antimicrobial activities on human pathogenic strains (Candida albicans, C. glabrata, Aspergillus fumigatus, Staphylococcus aureus, and Escherichia coli). Cyclohexane extracts were found particularly active against human pathogenic fungi with MIC80 values ranging from 8 to 62.5 μg/mL, without cytotoxicity. This study highlights the therapeutic and prophylactic potential of lichenic extracts as antibacterial and antifungal agents.
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Affiliation(s)
- Rafika Brakni
- Département de Biologie, Laboratoire de Biologie Végétale et Environnement, Université Badji-Mokhtar, BP 23000, Annaba, Algeria
| | - Monia Ali Ahmed
- Département de Biologie, Laboratoire de Biologie Végétale et Environnement, Université Badji-Mokhtar, BP 23000, Annaba, Algeria
| | - Pauline Burger
- Université Côte d'Azur, CNRS, Institut de Chimie de Nice, UMR 7272, Parc Valrose, 06108, Nice Cedex 2, France
| | - Aurélie Schwing
- Université Côte d'Azur, C3M Inserm, U1065, 06204, Nice Cedex 3, France
| | - Grégory Michel
- Université Côte d'Azur, C3M Inserm, U1065, 06204, Nice Cedex 3, France
| | - Christelle Pomares
- Université Côte d'Azur, C3M Inserm, U1065, 06204, Nice Cedex 3, France.,Service de Parasitologie-Mycologie, Centre Hospitalier Universitaire de Nice, 06202, Nice Cedex 3, France
| | - Lillia Hasseine
- Service de Parasitologie-Mycologie, Centre Hospitalier Universitaire de Nice, 06202, Nice Cedex 3, France
| | - Laurent Boyer
- Université Côte d'Azur, C3M Inserm, U1065, 06204, Nice Cedex 3, France.,Service de Parasitologie-Mycologie, Centre Hospitalier Universitaire de Nice, 06202, Nice Cedex 3, France
| | - Xavier Fernandez
- Université Côte d'Azur, CNRS, Institut de Chimie de Nice, UMR 7272, Parc Valrose, 06108, Nice Cedex 2, France
| | - Anne Landreau
- Université Côte d'Azur, CNRS, Institut de Chimie de Nice, UMR 7272, Parc Valrose, 06108, Nice Cedex 2, France.,Université d'Angers, Université Bretagne - Loire, Faculté de santé, Département pharmacie, 16 bd Daviers, 49045, Angers cedex 01, France
| | - Thomas Michel
- Université Côte d'Azur, CNRS, Institut de Chimie de Nice, UMR 7272, Parc Valrose, 06108, Nice Cedex 2, France
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Montagner A, Michel G, Fouché E, Régnier M, Polizzi A, Lukowicz C, Amiel A, Lasserre F, Naylies C, Canlet C, Tremblay-Franco M, Debrauwer L, Lippi Y, Wahli W, Guillou H. PPARβ hépatocytaire est un senseur circadien des acides gras alimentaires. NUTR CLIN METAB 2017. [DOI: 10.1016/j.nupar.2017.06.062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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50
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Almousawi HS, Assaf N, Herlin C, Alharbi M, Michel G, Sinna R, Dast S. Dorsal median lipectomy (the arrow technique): A new approach for the treatment of the circumferential truncal skin and fatty tissue excess. ANN CHIR PLAST ESTH 2017; 62:659-663. [PMID: 28778501 DOI: 10.1016/j.anplas.2017.06.009] [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: 03/06/2017] [Accepted: 06/29/2017] [Indexed: 11/17/2022]
Abstract
The increase in the number of patients who undergo massive weight loss surgery has led to an increasing number of patients who complain of circumferential abdominal skin and soft tissue excess. Currently, the only surgical option to treat soft tissue excess is vertical median abdominal lipectomy (fleur-de-lys technique). However, many patients are reluctant to undergo this surgery because of the position of the scar. We presented a new surgical approach to manage circumferential excess - dorsal median lipectomy (arrow technique) - in which the dorsal scar is well-tolerated by patients.
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Affiliation(s)
- H S Almousawi
- Department of plastic reconstructive and aesthetic surgery, university hospital of Picardie, 80054 Amiens, France
| | - N Assaf
- Department of plastic reconstructive and aesthetic surgery, university hospital of Picardie, 80054 Amiens, France
| | - C Herlin
- Department of plastic and craniofacial surgery, university hospital of Montpellier, Montpellier, France
| | - M Alharbi
- Department of plastic reconstructive and aesthetic surgery, university hospital of Picardie, 80054 Amiens, France
| | - G Michel
- Department of plastic reconstructive and aesthetic surgery, university hospital of Picardie, 80054 Amiens, France
| | - R Sinna
- Department of plastic reconstructive and aesthetic surgery, university hospital of Picardie, 80054 Amiens, France.
| | - S Dast
- Department of plastic reconstructive and aesthetic surgery, university hospital of Picardie, 80054 Amiens, France
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