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1. Risk factors for bronchiolitis hospitalization in infants: A French nationwide retrospective cohort study over four consecutive seasons (2009-2013)

Author

Jean-Christophe Rozé, Jean-Michel Hascoet, Jean-François Magny, Pierre-Henri Jarreau, Brigitte Fauroux, Elie Saliba, Michaël Schwarzinger, Sommeil-Vigilance-Fatigue et Santé Publique (VIFASOM (URP_7330)), Institut de Recherche Biomédicale des Armées (IRBA)-Université Paris Cité (UPCité), Unité Pédiatrique de Ventilation Non Invasive et de Sommeil [CHU Necker Enfants-Malades], CHU Necker - Enfants Malades [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Maternité Régionale Adolphe Pinard [Nancy], Développement, Adaptation et Handicap. Régulations cardio-respiratoires et de la motricité (DevAH), Université de Lorraine (UL), Université Paris Cité (UPCité), Hôpital Cochin [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Centre hospitalier universitaire de Nantes (CHU Nantes), Physiopathologie des Adaptations Nutritionnelles (PhAN), Université de Nantes - UFR de Médecine et des Techniques Médicales (UFR MEDECINE), Université de Nantes (UN)-Université de Nantes (UN)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Centre Hospitalier Régional Universitaire de Tours (CHRU Tours), Infection, Anti-microbiens, Modélisation, Evolution (IAME (UMR_S_1137 / U1137)), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Cité (UPCité)-Université Sorbonne Paris Nord, Translational Health Economics Network [Paris] (THEN), Sorbonne Université (SU), The present study was supported by AbbVie France. Translational Health Economics (THEN) was responsible for data collection, preparation, and validation with external sources of information. THEN received payment from AbbVie for these activities. Writing charges were funded by AbbVie France, and AbbVie approved the decision to submit the paper for publication, but the corresponding author was ultimately responsible for submitting the manuscript for publication., HASCOET, JEAN-MICHEL, Service d'assistance respiratoire et sommeil de l'enfant [CHU Necker], Sommeil-Vigilance-Fatigue et Santé Publique (VIFASOM - EA 7330), Institut de Recherche Biomédicale des Armées (IRBA)-Université de Paris (UP), Regional Maternity [Nancy], Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy)-Université de Lorraine (UL), Université de Paris (UP), Department of Neonatal Medicine of Port-Royal [Paris], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Cochin [AP-HP], Neonatal Intensive Care Unit of Port-Royal [Paris], Department of Neonatology [Paris], Department of Neonatology [Nantes], Department of Neonatology [Tours], Hôpital Gatien de Clocheville [Tours], Centre Hospitalier Régional Universitaire de Tours (CHRU Tours)-Centre Hospitalier Régional Universitaire de Tours (CHRU Tours), Université Sorbonne Paris Cité (USPC)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Paris (UP)-Université Sorbonne Paris Nord, Université Paris Diderot - Paris 7 (UPD7), Université Sorbonne Paris Cité (USPC), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Paris (UP)-Université Sorbonne Paris Nord, and Centre Hospitalier Régional Universitaire de Tours (CHRU TOURS)

Subjects
Male, Pediatrics, Pulmonology, Epidemiology, Physiology, Cell Transplantation, Comorbidity, [SDV.MHEP.PSR]Life Sciences [q-bio]/Human health and pathology/Pulmonology and respiratory tract, Families, 0302 clinical medicine, [SDV.MHEP.MI]Life Sciences [q-bio]/Human health and pathology/Infectious diseases, Medicine and Health Sciences, Morphogenesis, Blood and Lymphatic System Procedures, Birth Weight, 030212 general & internal medicine, Children, education.field_of_study, Multidisciplinary, Congenital Heart Defects, Hospitals, 3. Good health, Hospitalization, Physiological Parameters, [SDV.MHEP.MI] Life Sciences [q-bio]/Human health and pathology/Infectious diseases, Bronchiolitis, Medicine, Female, France, Seasons, Infants, Research Article, medicine.medical_specialty, Down syndrome, Science, Population, Cardiology, Surgical and Invasive Medical Procedures, 03 medical and health sciences, [SDV.MHEP.PED] Life Sciences [q-bio]/Human health and pathology/Pediatrics, 030225 pediatrics, Internal medicine, Congenital Disorders, medicine, Humans, Birth Defects, education, Transplantation, [SDV.MHEP.PED]Life Sciences [q-bio]/Human health and pathology/Pediatrics, Omphalocele, business.industry, Body Weight, Infant, Biology and Life Sciences, Retrospective cohort study, medicine.disease, Health Care, Bronchopulmonary dysplasia, Age Groups, Health Care Facilities, [SDV.SPEE] Life Sciences [q-bio]/Santé publique et épidémiologie, Medical Risk Factors, People and Places, Respiratory Infections, [SDV.MHEP.PSR] Life Sciences [q-bio]/Human health and pathology/Pulmonology and respiratory tract, Population Groupings, [SDV.SPEE]Life Sciences [q-bio]/Santé publique et épidémiologie, business, Developmental Biology, Stem Cell Transplantation
Abstract

International audience; Objectives: Large studies are needed to update risk factors of bronchiolitis hospitalization. We performed a nationwide analysis of hospitalization rates for bronchiolitis over four consecutive bronchiolitis seasons to identify underlying medical disorders at risk of bronchiolitis hospitalization and assess their frequency.Methods: Data were retrieved from the French National Hospital Discharge database. Of all infants discharged alive from maternity wards from January 2008 to December 2013 in France (N = 3,884,791), we identified four consecutive cohorts at risk of bronchiolitis during the seasons of 2009–2010 to 2012–2013. The main outcome was bronchiolitis hospitalization during a season. Individual risk factors were collected.Results: Among infants, 6.0% were preterm and 2.0% had ≥1 chronic condition including 0.2% bronchopulmonary dysplasia (BPD) and 0.2% hemodynamically significant congenital heart disease (HS-CHD). Bronchiolitis hospitalization rates varied between seasons (min: 1.26% in 2010–2011; max: 1.48% in 2012–2013; p

Published
2020

2. Organophosphate and brominated flame retardants in Australian indoor environments: Levels, sources, and preliminary assessment of human exposure

Author

Xianyu Wang, Andrew P.W. Banks, Phong K. Thai, Christie Gallen, Jochen F. Mueller, Chang He, Christine Baduel, Paul Bainton, Karin English, QAEHS, Queensland Alliance for Environmental Health Science, The University of Queensland, Queensland Univ Technol, Int Lab Air Qual & Hlth, TRACES - Technologie et Recherche en Analyse Chimique pour l'Environnement et la Santé, Institut des Sciences Analytiques (ISA), Institut de Chimie du CNRS (INC)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), Australian Government, Department of the Environment and Energy, School of Medicine, The University of Queensland, Child Health Research Centre, The University of Queensland, This work was financially supported by the Australian Government Department of the Environment and Energy and the University of Queensland (C02183). The authors would like to thank the owners of private houses and workers of offices who participated in this research. The authors also thank Dr. Daniel Drage for his experimental guidance, Dr. Michael Gallen and Dr. Laurence Hearn for their instrumental support, and the anonymous reviewers for their critical comments that helped to improve the quality of our paper. Mr. Chang He is supported by an International Postgraduate Research Scholarship granted by the Australian Government and a University of Queensland Centennial Scholarship granted by UQ. Prof. Jochen Mueller is funded by an Australian Research Council Future Fellowship (FF120100546). Dr. Phong K. Thai is funded by a QUT VC Research Fellowship. Dr. Christine Baduel is funded by the French National Research Agency (ANR-16-ACHN-0026). Ms. Karin English is funded by an Australian Government Research Training Program Scholarship., and ANR-16-ACHN-0026,ACHILE,Evaluation de l'exposition environnementale enfantine via des techniques analytiques ciblees et non ciblees.(2016)

Subjects
Adult, Adolescent, Halogenation, 010504 meteorology & atmospheric sciences, Indoor air, Health, Toxicology and Mutagenesis, 010501 environmental sciences, Toxicology, Body weight, 01 natural sciences, Young Adult, chemistry.chemical_compound, Polybrominated diphenyl ethers, [CHIM.ANAL]Chemical Sciences/Analytical chemistry, Halogenated Diphenyl Ethers, Humans, Ingestion, Child, ComputingMilieux_MISCELLANEOUS, Aged, Flame Retardants, 0105 earth and related environmental sciences, Inhalation, Organophosphate, Australia, Infant, Dust, Environmental Exposure, General Medicine, Middle Aged, Pollution, Organophosphates, chemistry, 13. Climate action, Human exposure, Air Pollution, Indoor, Child, Preschool, Environmental chemistry, [SDE]Environmental Sciences, Environmental science, Environmental Monitoring
Abstract

Concentrations of nine organophosphate flame retardants (OPFRs) and eight polybrominated diphenyl ethers (PBDEs) were measured in samples of indoor dust (n = 85) and air (n = 45) from Australian houses, offices, hotels, and transportation (buses, trains, and aircraft). All target compounds were detected in indoor dust and air samples. Median ∑9OPFRs concentrations were 40 μg/g in dust and 44 ng/m3 in indoor air, while median ∑8PBDEs concentrations were 2.1 μg/g and 0.049 ng/m3. Concentrations of FRs were higher in rooms that contained carpet, air conditioners, and various electronic items. Estimated daily intakes in adults are 14000 pg/kg body weight/day and 330 pg/kg body weight/day for ∑9OPFRs and ∑8PBDEs, respectively. Our results suggest that for the volatile FRs such as tris(2-chloroethyl) phosphate (TCEP) and TCIPP, inhalation is expected to be the more important intake pathway compared to dust ingestion and dermal contact.

Published
2018

3. PGC-1β: A Regulator of Mitochondrial Function with Subtle Roles in Energy Metabolism

Author

Adrienn Kis, Mark Campbell, Mohammad Bohlooly-Y, Keira Curtis, Barbara Cannon, Matej Orešič, E. Dale Abel, Vlad G. Zaha, Gema Medina-Gomez, Sheldon E. Litwin, Mercedes Jimenez-Linan, Antonio Vidal-Puig, Sihem Boudina, Kimberly T Fountain, Leonard H Storlien, Miguel López, Margaret Blount, Ping Hu, Helena M. Feldmann, Christopher J. Lelliott, Mikael Bjursell, Natasa Petrovic, Dongfang Zhang, Nadeene Parker, Maria Strömstedt, Aline Meirhaeghe, Michael Snaith, Autard, Delphine, Department of Clinical Biochemistry, University of Cambridge [UK] (CAM), AstraZeneca, The Wenner-Gren Institute, Stockholm University, Division of Cardiology, University of Utah, Division of Endocrinology, Metabolism, and Diabetes, Epidémiologie des maladies chroniques : impact des interactions gène environnement sur la santé des populations, Institut Pasteur de Lille, Réseau International des Instituts Pasteur (RIIP)-Réseau International des Instituts Pasteur (RIIP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lille, Droit et Santé, Technical Research Centre of Finland, VTT Technical Research Centre of Finland (VTT), The work presented in this paper was supported by grants from the British Heart Foundation, Wellcome Trust Integrative Physiology, and Diabetes Wellness Research Foundation (to AVP lab), and NIH grants RO1HL73167 and UO1HL70525 from the National Institutes of Health and the Ben and Iris Margolis Foundation (to EDA - Established Investigator of the American Heart Association). Support was from the European Union (DLARFID), the Swedish Research Council, and the Swedish Cancer Society (to BC lab).

Subjects
Male, MESH: Cold Temperature, Adipose tissue, White adipose tissue, Mitochondrion, MESH: Mice, Knockout, Mitochondria, Heart, chemistry.chemical_compound, Mice, Norepinephrine, 0302 clinical medicine, Adipose Tissue, Brown, Heart Rate, Brown adipose tissue, Body Fat Distribution, Diabetes/Endocrinology/Metabolism, MESH: Thermogenesis, MESH: Animals, Biology (General), MESH: Heart Rate, Mice, Knockout, Mammals, 0303 health sciences, MESH: Muscle, Skeletal, General Neuroscience, MESH: Energy Metabolism, Heart, Thermogenesis, Mus (Mouse), Peroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alpha, MESH: Gene Expression Regulation, Mitochondria, Cold Temperature, medicine.anatomical_structure, Liver, MESH: Adipose Tissue, White, Synopsis, Female, MESH: Mitochondria, Heart, General Agricultural and Biological Sciences, Metabolic Networks and Pathways, Research Article, MESH: Electron Transport Chain Complex Proteins, medicine.medical_specialty, QH301-705.5, MESH: Mitochondria, MESH: Trans-Activators, Adipose Tissue, White, Biology, MESH: Diet, Atherogenic, MESH: Adipose Tissue, Brown, General Biochemistry, Genetics and Molecular Biology, 03 medical and health sciences, Adrenergic Agents, Internal medicine, MESH: Norepinephrine, medicine, [SDV.BBM] Life Sciences [q-bio]/Biochemistry, Molecular Biology, Animals, MESH: Body Fat Distribution, [SDV.BBM]Life Sciences [q-bio]/Biochemistry, Molecular Biology, Muscle, Skeletal, MESH: Mice, 030304 developmental biology, Soleus muscle, General Immunology and Microbiology, Triglyceride, Body Weight, medicine.disease, MESH: Adrenergic Agents, MESH: Male, MESH: Body Weight, MESH: Heart, Endocrinology, chemistry, Electron Transport Chain Complex Proteins, Gene Expression Regulation, MESH: Metabolic Networks and Pathways, Trans-Activators, Diet, Atherogenic, Steatosis, Energy Metabolism, MESH: Female, 030217 neurology & neurosurgery, Transcription Factors, MESH: Liver
Abstract

The transcriptional coactivator peroxisome proliferator-activated receptor-gamma coactivator-1β (PGC-1β) has been implicated in important metabolic processes. A mouse lacking PGC-1β (PGC1βKO) was generated and phenotyped using physiological, molecular, and bioinformatic approaches. PGC1βKO mice are generally viable and metabolically healthy. Using systems biology, we identified a general defect in the expression of genes involved in mitochondrial function and, specifically, the electron transport chain. This defect correlated with reduced mitochondrial volume fraction in soleus muscle and heart, but not brown adipose tissue (BAT). Under ambient temperature conditions, PGC-1β ablation was partially compensated by up-regulation of PGC-1α in BAT and white adipose tissue (WAT) that lead to increased thermogenesis, reduced body weight, and reduced fat mass. Despite their decreased fat mass, PGC1βKO mice had hypertrophic adipocytes in WAT. The thermogenic role of PGC-1β was identified in thermoneutral and cold-adapted conditions by inadequate responses to norepinephrine injection. Furthermore, PGC1βKO hearts showed a blunted chronotropic response to dobutamine stimulation, and isolated soleus muscle fibres from PGC1βKO mice have impaired mitochondrial function. Lack of PGC-1β also impaired hepatic lipid metabolism in response to acute high fat dietary loads, resulting in hepatic steatosis and reduced lipoprotein-associated triglyceride and cholesterol content. Altogether, our data suggest that PGC-1β plays a general role in controlling basal mitochondrial function and also participates in tissue-specific adaptive responses during metabolic stress., The authors conduct an in-depth analysis of a PGC-1β knockout mouse; these animals posses specific defects in basal mitochondrial function and adaptation to metabolic stress.

Published
2006