411 results on '"Bouchard L"'
Search Results
2. The impact of obesity on cardiovascular structure and function: the fetal programming era
- Author
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St-Pierre J, Bouchard L, and Poirier P
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Pediatrics ,RJ1-570 - Abstract
Julie St-Pierre1, Luigi Bouchard2,3, Paul Poirier41Department of Pediatrics, Chicoutimi Hospital, Saguenay, QC, Canada; 2Department of Biochemistry, Université de Sherbrooke, Sherbrooke, QC, Canada; 3ECOGENE-21 and Lipid Clinic, Chicoutimi Hospital, Saguenay, QC, Canada; 4Quebec Heart and Lungs Institute, Université Laval, Quebec, QC, CanadaAbstract: The burden of obesity is now well established as a precursor of cardiovascular disease and other disorders. Although better clinical guidelines exist to prevent and treat obesity, the prevalence of obesity among children and adolescents is increasing alarmingly. Primary prevention remains the gold standard to significantly reduce the public health concerns associated with obesity. Traditional cardiovascular disease risk factors (such as dyslipidemia, hypertension, type 2 diabetes) for cardiovascular disease among children and adolescents are known. The scope of this review is thus to discuss new and emerging obesity and associated-disease risk factors. Evaluation of the coronary plaque formation, diastolic dysfunction, carotid intima-media thickness and heart rate variability represent interesting tools with clinical relevance. Beyond these new cardiovascular disease risk factors, recent evidence suggests that a detrimental fetal environment, associated with for example, maternal obesity, insulin resistance, and physical inactivity, imprints fetal metabolic programming via epigenetic mechanisms that predisposes the newborn to obesity and cardiovascular disease later in life. This information may impact on the future management of maternal health, as well as for those high-risk children.Keywords: cardiovascular disease, pediatrics, risk factors
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- 2012
3. Landslide susceptibility modeling by interpretable neural network
- Author
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Youssef, K., Shao, K., Moon, S., and Bouchard, L.-S.
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- 2023
- Full Text
- View/download PDF
4. A direct view on Ni substitution in Sc2Ir6-xNixB as probed by NMR
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Koumoulis, D., Scheifers, J.P., Fokwa, B.P.T., and Bouchard, L.-S.
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- 2023
- Full Text
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5. Cr3 Triangles induced competing magnetic interactions in the new metal boride TiCrIr2B2: An NMR and DFT study
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Koumoulis, D., Kupers, M., Touzani, R., Zhang, Y., Fokwa, B.P.T., and Bouchard, L.-S.
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- 2018
- Full Text
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6. Remote Detection of Nuclear Magnetic Resonance with an Anisotropic Magnetoresistive Sensor
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Verpillat, F., Ledbetter, M. P., Xu, S., Michalak, D. J., Hilty, C., Bouchard, L.-S., Antonijevic, S., Budker, D., and Pines, A.
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- 2008
- Full Text
- View/download PDF
7. A polymorphism of the interferon-gamma-inducible protein 30 gene is associated with hyperglycemia in severely obese individuals
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Turcot, V., Bouchard, L., Faucher, G., Tchernof, A., Deshaies, Y., Pérusse, L., Marceau, P., Hould, F. S., Lebel, S., and Vohl, Marie-Claude
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- 2012
- Full Text
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8. Usefulness of Transjugular Intrahepatic Portosystemic Shunt in the Management of Bleeding Ectopic Varices in Cirrhotic Patients
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Vidal, V., Joly, L., Perreault, P., Bouchard, L., Lafortune, M., and Pomier-Layrargues, G.
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- 2006
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9. Controlled nanocrystallinity in Gd nanobowls leads to magnetization of 226 emu/g.
- Author
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Ertas, Y. N. and Bouchard, L.-S.
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NANOCRYSTAL synthesis , *MAGNETIC resonance imaging , *MAGNETIC cooling , *NANOPARTICLES , *MAGNETIZATION - Abstract
Gadolinium (Gd) metal is of great interest in applications such as contrast-enhanced MRI and magnetic cooling. However, it is generally difficult to produce oxide-free and highly magnetic Gd nanoparticles due to the aggressively reactive nature of Gd with oxygen. Herein, we utilized a nanofabrication route and optimization of experimental conditions to produce highly magnetic airstable oxide-free Gd nanoparticles. The nanobowls displayed the highest saturation magnetization to date for Gd, reaching 226.4 emu/g at 2K. The crystalline composition of Gd is found to affect the observed magnetization values: the higher magnetization is observed for nanoparticles that have a lower content of the paramagnetic face-centered cubic (fcc) phase and a greater content of the ferromagnetic hexagonal close-packed (hcp) phase. The relative fcc content was found to depend on the deposition rate of the Gd metal during the nanofabrication process, thereby correlating with altered magnetization. [ABSTRACT FROM AUTHOR]
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- 2017
- Full Text
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10. Human resistin gene polymorphism is associated with visceral obesity and fasting and oral glucose stimulated C-peptide in the Québec Family Study
- Author
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Bouchard, L., Weisnagel, S. J., Engert, J. C., Hudson, T. J., Bouchard, C., Vohl, M-C., and Pérusse, L.
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- 2004
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11. CYR61 polymorphisms are associated with plasma HDL-cholesterol levels in obese individuals
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Bouchard, L, Tchernof, A, Deshaies, Y, Lebel, S, Hould, F-S, Marceau, P, and Vohl, M-C
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- 2007
12. Contribution of several candidate gene polymorphisms in the determination of adiposity changes: results from the Québec Family Study
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Bouchard, L, Tremblay, A, Bouchard, C, and Pérusse, L
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- 2007
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13. Associations between USF1 gene variants and cardiovascular risk factors in the Quebec Family Study
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Choquette, A C, Bouchard, L, Houde, A, Bouchard, C, Pérusse, L, and Vohl, M-C
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- 2007
14. Haplotypes in the phospholipid transfer protein gene are associated with obesity-related phenotypes: the Québec Family Study
- Author
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Bossé, Y, Bouchard, L, Després, J-P, Bouchard, C, Pérusse, L, and Vohl, M-C
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- 2005
15. Long-term adiposity changes are related to a glucocorticoid receptor variant in young females
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Bouchard, L, Tremblay, A, Bouchard, C, Després, J-P, Drapeau, V, and Pérusse, L
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- 2003
16. Cohort Profile: Pregnancy And Childhood Epigenetics (PACE) Consortium
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Felix, JF, Joubert, BR, Baccarelli, AA, Sharp, GC, Almqvist, C, Annesi-Maesano, I, Arshad, H, Baïz, N, Bakermans-Kranenburg, MJ, Bakulski, KM, Binder, EB, Bouchard, L, Breton, CV, Brunekreef, B, Brunst, KJ, Burchard, EG, Bustamante, M, Chatzi, L, Munthe-Kaas, M, Corpeleijn, E, Czamara, D, Dabelea, D, Smith, G, De Boever, P, Duijts, L, Dwyer, T, Eng, C, Eskenazi, B, Everson, TM, Falahi, F, Fallin, MD, Farchi, S, Fernandez, MF, Gao, L, Gaunt, TR, Ghantous, A, Gillman, MW, Gonseth, S, Grote, V, Gruzieva, O, Håberg, SE, Herceg, Z, Hivert, M-F, Holland, N, Holloway, JW, Hoyo, C, Hu, D, Huang, R-C, Huen, K, Järvelin, M-R, Jima, DD, Just, AC, Karagas, MR, Karlsson, R, Karmaus, W, Kechris, KJ, Kere, J, Kogevinas, M, Koletzko, B, Koppelman, GH, Küpers, LK, Ladd-Acosta, C, Lahti, J, Lambrechts, N, Langie, SAS, Lie, RT, Liu, AH, Magnus, MC, Magnus, P, Maguire, RL, Marsit, CJ, McArdle, W, Melén, E, Melton, P, Murphy, SK, Nawrot, TS, Nisticò, L, Nohr, EA, Nordlund, B, Nystad, W, Oh, SS, Oken, E, Page, CM, Perron, P, Pershagen, G, Pizzi, C, Plusquin, M, Raikkonen, K, Reese, SE, Reischl, E, Richiardi, L, Ring, S, Roy, RP, Rzehak, P, Schoeters, G, Schwartz, DA, Sebert, S, Snieder, H, Sørensen, TIA, Starling, AP, Sunyer, J, Taylor, JA, Tiemeier, H, Ullemar, V, Vafeiadi, M, Van Ijzendoorn, MH, Vonk, JM, Vriens, A, Vrijheid, M, Wang, P, Wiemels, JL, Wilcox, AJ, Wright, RJ, Xu, C-J, Xu, Z, Yang, IV, Yousefi, P, Zhang, H, Zhang, W, Zhao, S, Agha, G, Relton, CL, Jaddoe, VWV, London, SJ, Epidemiology, Erasmus MC other, Pediatrics, Child and Adolescent Psychiatry / Psychology, Psychiatry, Research Methods and Techniques, dIRAS RA-2, One Health Chemisch, Reproductive Origins of Adult Health and Disease (ROAHD), Lifestyle Medicine (LM), Groningen Research Institute for Asthma and COPD (GRIAC), Life Course Epidemiology (LCE), Department of Psychology and Logopedics, Helsinki Collegium for Advanced Studies, Medicum, University of Helsinki, and Developmental Psychology Research Group
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DNA Methylation/physiology ,Epidemiology ,Maternal Health ,education ,Embaràs ,DISEASE ,Environmental Pollution/analysis ,Epigenesis, Genetic ,Cohort Studies ,Prenatal Exposure Delayed Effects/epidemiology ,Folic Acid ,Pregnancy ,Journal Article ,Humans ,MATERNAL SMOKING ,CORD BLOOD ,GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries) ,Cohort Profiles ,METAANALYSIS ,PRENATAL EXPOSURE ,Maternal Exposure/adverse effects ,EPIGENOME-WIDE ASSOCIATION ,0104 Statistics ,Child Health ,Infant, Newborn ,DNA METHYLATION DATA ,DNA Methylation ,Epigenètica ,BIRTH-WEIGHT ,3142 Public health care science, environmental and occupational health ,Folic Acid/blood ,1117 Public Health And Health Services ,Maternal Exposure ,Prenatal Exposure Delayed Effects ,MENDELIAN RANDOMIZATION ,Epigenetics ,Female ,Human medicine ,Environmental Pollution - Abstract
UK Medical Research Council; Wellcome Trust [102215/2/13/2, WT088806, 084762MA]; UK Biotechnology and Biological Sciences Research Council [BB/I025751/1, BB/I025263/1]; UK Medical Research Council Integrative Epidemiology Unit; University of Bristol [MC_UU_12013_1, MC_UU_12013_2, MC_UU_12013_5, MC_UU_12013_8]; United States National Institute of Diabetes and Digestive and Kidney Diseases [R01 DK10324]; Swedish Research Council; Swedish Heart-Lung Foundation; Freemason Child House Foundation in Stockholm; MeDALL (Mechanisms of the Development of ALLergy), within the European Union [261357]; Stockholm County Council (ALF); Swedish Foundation for Strategic Research (SSF) [RBc08-0027]; Strategic Research Programme (SFO) in Epidemiology at Karolinska Institutet; Swedish Research Council Formas; Swedish Environment Protection Agency; Center for Integrative Research on Childhood Leukemia and the Environment [P01ES018172]; NIH [P50ES018172, R01ES09137, 5P30CA082103, P01 ES009605, R01 ES021369, R01ES023067, K01ES017801, R01ES022216, P30ES007048, R01ES014447, P01ES009581, R826708-01, RD831861-01, P50ES026086, R01DK068001, R01 DK100340, R01 DK076648, R01ES022934, R01HL111108, R01NR013945, R37 HD034568, UL1 TR001082, P30 DK56350]; EPA [RD83451101, RD83615901, RD 82670901, RD 83451301, 83615801-0]; UCSF Comprehensive Cancer Center Support grant [P30 CA82103]; Swiss Science National Foundation [P2LAP3_158674]; Sutter-Stottner Foundation; Commission of the European Community, specific RTD Programme 'Quality of Life and Management of Living Resources' within the 5th Framework Programme [QLRT-2001-00389, QLK1-CT-2002-30582]; 6th Framework Programme [007036]; European Union's Seventh Framework Programme (FP7), project EarlyNutrition [289346]; European Research Council Advanced grant ERC-AdG [322605 META-GROWTH]; Autism Speaks grant [260377]; Funds for Research in Respiratory Health; French Ministry of Research: IFR program; INSERM Nutrition Research Program; French Ministry of Health: Perinatality Program; French National Institute for Population Health Surveillance (INVS); Paris-Sud University; French National Institute for Health Education (INPES); Nestle; Mutuelle Generale de l'Education Nationale (MGEN); French-speaking association for the study of diabetes and metabolism (Alfediam) [2012/51290-6]; EU; European Research Council [ERC-2012-StG.310898, 268479-BREATHE]; Flemish Scientific Research Council (FWO) [N1516112 / G.0.873.11N.10]; European Community's Seventh Framework Programme FP7 project EXPOsOMICS [308610]; People Program (Marie Curie Actions) of the European Union's Seventh Framework Program FP7 under REA grant [628858]; Bijzonder Onderzoeksfonds (BOF) Hasselt University; Ministry of the Flemish Community (Department of Economics, Science and Innovation); Ministry of the Flemish Community (Department of Environment, Nature and Energy); CEFIC LRI award by the Research Foundation-Flanders (FWO); CEFIC LRI award by the Research Foundation-Flanders (FWO) [12L5216N]; Flemish Institute for Technological Research (VITO) [12L5216N]; Bill AMP; Melinda Gates Foundation Grand Challenges Exploration grant [OPP119403]; Sandler Family Foundation; American Asthma Foundation; National Institutes of Health; National Heart, Lung and Blood Institute [HL117004]; National Institute of Environmental Health Sciences [ES24844]; National Institute on Minority Health and Health Disparities [MD006902, MD009523]; National Institute of General Medical Sciences [GM007546]; Tobacco-Related Disease Research Program [24RT-0025]; Hutchison Whampoa Ltd, Hong Kong; University of Groningen; Well Baby Clinic Foundation Icare; Noordlease; Youth Health Care Drenthe; Biobanking and Biomolecular Research Infrastructure Netherlands [CP2011-19]; Erasmus Medical Center, Rotterdam; Erasmus University Rotterdam; Netherlands Organization for Health Research and Development; Netherlands Genomics Initiative (NGI)/Netherlands Organization for Scientific Research (NWO); Netherlands Consortium for Healthy Aging (NCHA) [050-060-810]; Genetic Laboratory of the Department of Internal Medicine, Erasmus MC; European Union's Horizon research and innovation programme [733206, 633595]; National Institute of Child and Human Development [R01HD068437]; Netherlands Organization for Health Research and Development [VIDI 016.136.361]; Consolidator grant from the European Research Council [ERC-2014-CoG-648916]; Netherlands' Organization for Scientific Research (NWO VICI); European Research Council ERC; Netherlands' Organization for Scientific Research (NWO Spinoza Award); Gravitation program of the Dutch Ministry of Education, Culture, and Science; Netherlands Organization for Scientific Research (NWO) [024.001.003]; Lung Foundation Netherlands [3.2.12.089]; Fonds de Recherche du Quebec en Sante (FRQ-S) [20697]; Canadian Institute of Health Reseach (CIHR) [MOP 115071]; Diabete Quebec grant; Canadian Diabetes Association operating grant [OG-3-08-2622]; American Diabetes Association Pathways Accelerator Early Investigator Award [1-15-ACE-26]; MRC Integrative Epidemiology Unit - Medical Research Council [MC_UU_12013/1-9]; National Institute of Environmental Health Sciences, National Institutes of Health [K99ES025817]; Instituto de Salud Carlos III [Red INMA G03/176, CB06/02/0041]; Spanish Ministry of Health [FIS-PI04/1436, FIS-PI08/1151]; Spanish Ministry of Health (FEDER funds) [FIS-PI11/00610, FIS-FEDER-PI06/0867, FIS-FEDER-PI03-1615]; Generalitat de Catalunya [CIRIT 1999SGR 00241]; Fundacio La Marato de TV3 [090430]; EU Commission [261357-MeDALL]; National Institute of Allergy and Infectious Diseases [N01-AI90052]; National Institutes of Health USA [R01 HL082925, R01 HL132321]; Asthma UK [364]; NIAID/NIH [R01AI091905, R01AI121226]; National Institute of Health [R01AI121226, R01 AI091905, R01HL132321]; NIH/NIEHS [N01-ES75558]; NIH/NINDS [1 UO1 NS 047537-01, 2 UO1 NS 047537-06A1]; Intramural Research Program of the NIH, National Institute of Environmental Health Sciences [Z01-ES-49019, Z01 ES044005, ES049033, ES049032]; Norwegian Research Council/BIOBANK [221097]; Oslo University Hospital; Unger-Vetlesens foundation; Norwegian American Womens Club; INCA/Plan Cancer-EVA-INSERM, France; International Childhood Cancer Cohort Consortium (I4C); INCA/Plan Cancer-EVA-INSERM (France); IARC Postdoctoral Fellowship; EC FP7 Marie Curie Actions-People-Co-funding of regional, national and international programmes (COFUND); NIEHS [R21ES014947, R01ES016772]; NIDDK [R01DK085173]; National Institute of Environmental Health Science [P30 ES025128]; University of Oulu grant [65354]; Oulu University Hospital [2/97, 8/97]; Ministry of Health and Social Affairs [23/251/97, 160/97, 190/97]; National Institute for Health and Welfare, Helsinki [54121]; Regional Institute of Occupational Health, Oulu, Finland [50621, 54231]; EU [QLG1-CT-2000-01643, E51560]; NorFA grant [731, 20056, 30167]; Academy of Finland; NIH-NIEHS [P01 ES022832]; US EPA [RD83544201]; NIH-NIGMS [P20GM104416]; NCI [R25CA134286]; Netherlands Organization for Scientific Research and Development; Netherlands Asthma Fund; Netherlands Ministry of Spatial Planning, Housing, and the Environment; Netherlands Ministry of Health, Welfare, and Sport; MeDALL; European Union under the Health Cooperation Work Program of the 7th Framework program [261357]; Italian National Centre for Disease Prevention and Control (CCM grant); Italian Ministry of Health (art 12); Italian Ministry of Health (12bis Dl.gs.vo) [502/92]; EraNet; EVO; University of Helsinki Research Funds; Signe and Ane Gyllenberg foundation; Emil Aaltonen Foundation; Finnish Medical Foundation; Jane and Aatos Erkko Foundation; Novo Nordisk Foundation; Paivikki and Sakari Sohlberg Foundation; Sigrid Juselius Foundation; University of Helsinki; University of Western Australia (UWA); Curtin University; Raine Medical Research Foundation; UWA Faculty of Medicine, Dentistry and Health Sciences; Telethon Kids Institute; Women's and Infant's Research Foundation (KEMH); Edith Cowan University; National Health and Medical Research Council [1059711]; National Health and Medical Research Council (NHMRC) fellowship [1053384]; Australian National Health and Medical Research Council; United States National Institute of Health; Greek Ministry of Health (programme of prevention of obesity and neurodevelopmental disorders in preschool children, in Heraklion district, Crete, Greece); Greek Ministry of Health ('Rhea Plus': Primary Prevention Program of Environmental Risk Factors for Reproductive Health, and Child Health); European Union (EU) [EU FP6-2003-Food-3-NewGeneris, EU FP7 ENV.2007.1.2.2.2, 211250 ESCAPE, EU FP7-2008-ENV-1.2.1.4 Envirogenomarkers, EU FP7 ENV.2008.1.2.1.6, 226285 ENRIECO]; National Institutes of Health [NIH-NIMH R01MH094609, NIH-NIEHS R01ES022223, NIH-NIEHS R01ES025145]; Centers for Disease Control and Prevention [U10DD000180, U10DD000181, U10DD000182, U10DD000183, U10DD000184, U10DD000498]; Autism Speaks [7659]; Swedish Research Council through the Swedish Initiative for research on Microdata in the Social And Medical Sciences (SIMSAM) [340-2013-5867]; Stockholm County Council (ALF projects); Strategic Research Program in Epidemiology at Karolinska Institutet; Swedish Asthma and Allergy Association's Research Foundation; Stiftelsen Frimurare Barnahuset Stockholm; Norwegian Ministry of Health and Care Services; Ministry of the Flemish Community (Flemish Agency for Care and Health); University of Bristol; Ministry of Education and Research; European Union (EU) (EU FP7-HEALTH-single stage CHICOS); European Union (EU) (EU-FP7-HEALTH) [308333 HELIX]; European Union (EU) (EU FP6. STREP HiWATE); UK Medical Research Council; Wellcome Trust [102215/2/13/2, WT088806, 084762MA]; UK Biotechnology and Biological Sciences Research Council [BB/I025751/1, BB/I025263/1]; UK Medical Research Council Integrative Epidemiology Unit; University of Bristol [MC_UU_12013_1, MC_UU_12013_2, MC_UU_12013_5, MC_UU_12013_8]; United States National Institute of Diabetes and Digestive and Kidney Diseases [R01 DK10324]; Swedish Research Council; Swedish Heart-Lung Foundation; Freemason Child House Foundation in Stockholm; MeDALL (Mechanisms of the Development of ALLergy), within the European Union [261357]; Stockholm County Council (ALF); Swedish Foundation for Strategic Research (SSF) [RBc08-0027]; Strategic Research Programme (SFO) in Epidemiology at Karolinska Institutet; Swedish Research Council Formas; Swedish Environment Protection Agency; Center for Integrative Research on Childhood Leukemia and the Environment [P01ES018172]; NIH [P50ES018172, R01ES09137, 5P30CA082103, P01 ES009605, R01 ES021369, R01ES023067, K01ES017801, R01ES022216, P30ES007048, R01ES014447, P01ES009581, R826708-01, RD831861-01, P50ES026086, R01DK068001, R01 DK100340, R01 DK076648, R01ES022934, R01HL111108, R01NR013945, R37 HD034568, UL1 TR001082, P30 DK56350]; EPA [RD83451101, RD83615901, RD 82670901, RD 83451301, 83615801-0]; UCSF Comprehensive Cancer Center Support grant [P30 CA82103]; Swiss Science National Foundation [P2LAP3_158674]; Sutter-Stottner Foundation; Commission of the European Community, specific RTD Programme 'Quality of Life and Management of Living Resources' within the 5th Framework Programme [QLRT-2001-00389, QLK1-CT-2002-30582]; 6th Framework Programme [007036]; European Union's Seventh Framework Programme (FP7), project EarlyNutrition [289346]; European Research Council Advanced grant ERC-AdG [322605 META-GROWTH]; Autism Speaks grant [260377]; Funds for Research in Respiratory Health; French Ministry of Research: IFR program; INSERM Nutrition Research Program; French Ministry of Health: Perinatality Program; French National Institute for Population Health Surveillance (INVS); Paris-Sud University; French National Institute for Health Education (INPES); Nestle; Mutuelle Generale de l'Education Nationale (MGEN); French-speaking association for the study of diabetes and metabolism (Alfediam) [2012/51290-6]; EU; European Research Council [ERC-2012-StG.310898, 268479-BREATHE]; Flemish Scientific Research Council (FWO) [N1516112 / G.0.873.11N.10]; European Community's Seventh Framework Programme FP7 project EXPOsOMICS [308610]; People Program (Marie Curie Actions) of the European Union's Seventh Framework Program FP7 under REA grant [628858]; Bijzonder Onderzoeksfonds (BOF) Hasselt University; Ministry of the Flemish Community (Department of Economics, Science and Innovation); Ministry of the Flemish Community (Department of Environment, Nature and Energy); CEFIC LRI award by the Research Foundation-Flanders (FWO); CEFIC LRI award by the Research Foundation-Flanders (FWO) [12L5216N]; Flemish Institute for Technological Research (VITO) [12L5216N]; Bill AMP; Melinda Gates Foundation Grand Challenges Exploration grant [OPP119403]; Sandler Family Foundation; American Asthma Foundation; National Institutes of Health; National Heart, Lung and Blood Institute [HL117004]; National Institute of Environmental Health Sciences [ES24844]; National Institute on Minority Health and Health Disparities [MD006902, MD009523]; National Institute of General Medical Sciences [GM007546]; Tobacco-Related Disease Research Program [24RT-0025]; Hutchison Whampoa Ltd, Hong Kong; University of Groningen; Well Baby Clinic Foundation Icare; Noordlease; Youth Health Care Drenthe; Biobanking and Biomolecular Research Infrastructure Netherlands [CP2011-19]; Erasmus Medical Center, Rotterdam; Erasmus University Rotterdam; Netherlands Organization for Health Research and Development; Netherlands Genomics Initiative (NGI)/Netherlands Organization for Scientific Research (NWO); Netherlands Consortium for Healthy Aging (NCHA) [050-060-810]; Genetic Laboratory of the Department of Internal Medicine, Erasmus MC; European Union's Horizon research and innovation programme [733206, 633595]; National Institute of Child and Human Development [R01HD068437]; Netherlands Organization for Health Research and Development [VIDI 016.136.361]; Consolidator grant from the European Research Council [ERC-2014-CoG-648916]; Netherlands' Organization for Scientific Research (NWO VICI); European Research Council ERC; Netherlands' Organization for Scientific Research (NWO Spinoza Award); Gravitation program of the Dutch Ministry of Education, Culture, and Science; Netherlands Organization for Scientific Research (NWO) [024.001.003]; Lung Foundation Netherlands [3.2.12.089]; Fonds de Recherche du Quebec en Sante (FRQ-S) [20697]; Canadian Institute of Health Reseach (CIHR) [MOP 115071]; Diabete Quebec grant; Canadian Diabetes Association operating grant [OG-3-08-2622]; American Diabetes Association Pathways Accelerator Early Investigator Award [1-15-ACE-26]; MRC Integrative Epidemiology Unit - Medical Research Council [MC_UU_12013/1-9]; National Institute of Environmental Health Sciences, National Institutes of Health [K99ES025817]; Instituto de Salud Carlos III [Red INMA G03/176, CB06/02/0041]; Spanish Ministry of Health [FIS-PI04/1436, FIS-PI08/1151]; Spanish Ministry of Health (FEDER funds) [FIS-PI11/00610, FIS-FEDER-PI06/0867, FIS-FEDER-PI03-1615]; Generalitat de Catalunya [CIRIT 1999SGR 00241]; Fundacio La Marato de TV3 [090430]; EU Commission [261357-MeDALL]; National Institute of Allergy and Infectious Diseases [N01-AI90052]; National Institutes of Health USA [R01 HL082925, R01 HL132321]; Asthma UK [364]; NIAID/NIH [R01AI091905, R01AI121226]; National Institute of Health [R01AI121226, R01 AI091905, R01HL132321]; NIH/NIEHS [N01-ES75558]; NIH/NINDS [1 UO1 NS 047537-01, 2 UO1 NS 047537-06A1]; Intramural Research Program of the NIH, National Institute of Environmental Health Sciences [Z01-ES-49019, Z01 ES044005, ES049033, ES049032]; Norwegian Research Council/BIOBANK [221097]; Oslo University Hospital; Unger-Vetlesens foundation; Norwegian American Womens Club; INCA/Plan Cancer-EVA-INSERM, France; International Childhood Cancer Cohort Consortium (I4C); INCA/Plan Cancer-EVA-INSERM (France); IARC Postdoctoral Fellowship; EC FP7 Marie Curie Actions-People-Co-funding of regional, national and international programmes (COFUND); NIEHS [R21ES014947, R01ES016772]; NIDDK [R01DK085173]; National Institute of Environmental Health Science [P30 ES025128]; University of Oulu grant [65354]; Oulu University Hospital [2/97, 8/97]; Ministry of Health and Social Affairs [23/251/97, 160/97, 190/97]; National Institute for Health and Welfare, Helsinki [54121]; Regional Institute of Occupational Health, Oulu, Finland [50621, 54231]; EU [QLG1-CT-2000-01643, E51560]; NorFA grant [731, 20056, 30167]; Academy of Finland; NIH-NIEHS [P01 ES022832]; US EPA [RD83544201]; NIH-NIGMS [P20GM104416]; NCI [R25CA134286]; Netherlands Organization for Scientific Research and Development; Netherlands Asthma Fund; Netherlands Ministry of Spatial Planning, Housing, and the Environment; Netherlands Ministry of Health, Welfare, and Sport; MeDALL; European Union under the Health Cooperation Work Program of the 7th Framework program [261357]; Italian National Centre for Disease Prevention and Control (CCM grant); Italian Ministry of Health (art 12); Italian Ministry of Health (12bis Dl.gs.vo) [502/92]; EraNet; EVO; University of Helsinki Research Funds; Signe and Ane Gyllenberg foundation; Emil Aaltonen Foundation; Finnish Medical Foundation; Jane and Aatos Erkko Foundation; Novo Nordisk Foundation; Paivikki and Sakari Sohlberg Foundation; Sigrid Juselius Foundation; University of Helsinki; University of Western Australia (UWA); Curtin University; Raine Medical Research Foundation; UWA Faculty of Medicine, Dentistry and Health Sciences; Telethon Kids Institute; Women's and Infant's Research Foundation (KEMH); Edith Cowan University; National Health and Medical Research Council [1059711]; National Health and Medical Research Council (NHMRC) fellowship [1053384]; Australian National Health and Medical Research Council; United States National Institute of Health; Greek Ministry of Health (programme of prevention of obesity and neurodevelopmental disorders in preschool children, in Heraklion district, Crete, Greece); Greek Ministry of Health ('Rhea Plus': Primary Prevention Program of Environmental Risk Factors for Reproductive Health, and Child Health); European Union (EU) [EU FP6-2003-Food-3-NewGeneris, EU FP7 ENV.2007.1.2.2.2, 211250 ESCAPE, EU FP7-2008-ENV-1.2.1.4 Envirogenomarkers, EU FP7 ENV.2008.1.2.1.6, 226285 ENRIECO]; National Institutes of Health [NIH-NIMH R01MH094609, NIH-NIEHS R01ES022223, NIH-NIEHS R01ES025145]; Centers for Disease Control and Prevention [U10DD000180, U10DD000181, U10DD000182, U10DD000183, U10DD000184, U10DD000498]; Autism Speaks [7659]; Swedish Research Council through the Swedish Initiative for research on Microdata in the Social And Medical Sciences (SIMSAM) [340-2013-5867]; Stockholm County Council (ALF projects); Strategic Research Program in Epidemiology at Karolinska Institutet; Swedish Asthma and Allergy Association's Research Foundation; Stiftelsen Frimurare Barnahuset Stockholm; Norwegian Ministry of Health and Care Services; Ministry of the Flemish Community (Flemish Agency for Care and Health); University of Bristol; Ministry of Education and Research; European Union (EU) (EU FP7-HEALTH-single stage CHICOS); European Union (EU) (EU-FP7-HEALTH) [308333 HELIX]; European Union (EU) (EU FP6. STREP HiWATE); [R01ES017646]; [R01ES01900]; [R01ES16443]; [USA / NIHH 2000 G DF682]; [50945]; [R01 HL095606]; [R01 HL1143396]
- Published
- 2018
17. Hyperpolarization of amino acid derivatives in water for biological applications† †Electronic supplementary information (ESI) available: Synthesis, para-hydrogen experiments, relaxation times of amino acid derivatives, catalyst decomposition and remarks on amino acid PHIP. See DOI: 10.1039/c5sc00503e
- Author
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Glöggler, S., Wagner, S., and Bouchard, L.-S.
- Subjects
Chemistry - Abstract
We report on the successful synthesis and hyperpolarization of N-unprotected α-amino acid ethyl propionate esters and extensively, on an alanine derivative hyperpolarized by PHIP (4.4 ± 1.0% 13C-polarization), meeting required levels for in vivo detection., We report on the successful synthesis and hyperpolarization of N-unprotected α-amino acid ethyl propionate esters and extensively, on an alanine derivative hyperpolarized by PHIP (4.4 ± 1.0% 13C-polarization), meeting required levels for in vivo detection. Using water as solvent increases biocompatibility and the absence of N-protection is expected to maintain biological activity.
- Published
- 2015
18. Osteoclast microRNA Profiling in Rheumatoid Arthritis to Capture the Erosive Factor
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Nguyen Hoang Dong, Lortie Audrey, Mbous Nguimbus Leopold, Marrugo Javier, Allard‐Chamard Hugues, Bouchard Luigi, Boire Gilles, Michelle S Scott, and Roux Sophie
- Subjects
MACHINE LEARNING ,MICRORNAS ,OSTEOCLAST ,PREDICTIVE MODEL ,RHEUMATOID ARTHRITIS ,Orthopedic surgery ,RD701-811 ,Diseases of the musculoskeletal system ,RC925-935 - Abstract
In rheumatoid arthritis (RA), only a subset of patients develop irreversible bone destruction. Our aim was to identify a microRNA (miR)‐based osteoclast‐related signature predictive of erosiveness in RA. Seventy‐six adults with erosive (E) or nonerosive (NE) seropositive RA and 43 sex‐ and age‐matched healthy controls were recruited. Twenty‐five miRs from peripheral blood mononuclear cell (PBMC)‐derived osteoclasts selected from RNA‐Seq (discovery cohort) were assessed by qPCR (replication cohort), as were 33 target genes (direct targets or associated with regulated pathways). The top five miRs found differentially expressed in RA osteoclasts were either decreased (hsa‐miR‐34a‐3p, 365b‐3p, 374a‐3p, and 511‐3p [E versus NE]) or increased (hsa‐miR‐193b‐3p [E versus controls]). In vitro, inhibition of miR‐34a‐3p had an impact on osteoclast bone resorption. An integrative network analysis of miRs and their targets highlighted correlations between mRNA and miR expression, both negative (CD38, CD80, SIRT1) and positive (MITF), and differential gene expression between NE versus E (GXYLT1, MITF) or versus controls (CD38, KLF4). Machine‐learning models were used to evaluate the value of miRs and target genes, in combination with clinical data, to predict erosion. One model, including a set of miRs (predominantly 365b‐3p) combined with rheumatoid factor titer, provided 70% accuracy (area under the curve [AUC] 0.66). Adding genes directly targeted or belonging to related pathways improved the predictive power of the model for the erosive phenotype (78% accuracy, AUC 0.85). This proof‐of‐concept study indicates that identification of RA subjects at risk of erosions may be improved by studying miR expression in PBMC‐derived osteoclasts, suggesting novel approaches toward personalized treatment. © 2023 The Authors. JBMR Plus published by Wiley Periodicals LLC on behalf of American Society for Bone and Mineral Research.
- Published
- 2023
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19. Placental NEGR1 DNA methylation is associated with BMI and neurodevelopment in preschool-age children.
- Author
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Breton, E, Gagné-Ouellet, V, Thibeault, K, Guérin, R, Van Lieshout, Rj, Perron, P, Hivert, Mf, and Bouchard, L
- Abstract
Studies have linked maternal pre-pregnancy obesity and hyperglycaemia with metabolic and neurodevelopmental complications in childhood. DNA methylation (DNAm) might enable foetal adaptations to environmental adversities through important gene loci. NEGR1 is involved in both energy balance and behaviour regulation. The aim of this study was to investigate associations between placental DNAm at the NEGR1 gene locus and childhood anthropometric and neurodevelopmental profiles in preschoolers. We analysed 276 mother-child dyads from Gen3G, a prospective birth cohort from Sherbrooke. At 3yo (40.4 ± 3.0 months), we measured body mass index (BMI) and the mothers reported on offspring neurobehavior using the Strengths and Difficulties Questionnaire (SDQ). We quantified DNAm levels at 30 CpGs at the NEGR1 locus using the MethylationEPIC Array in placental biopsies. DNAm at four CpGs located before NEGR1 second exon predicted child's BMI z-score (cg26153364: β=−0.16 ± 0.04; p=0.008, cg23166710: β=0.14 ± 0.08; p=0.03) and SDQ total score (cg04932878: β=0.22 ± 1.0; p= 3.0x10
−4 , cg16525738: β=−0.14 ± 0.18; p=0.01, cg23166710: β=−0.13 ± 0.36; p= 0.04), explaining 4.2% (p=0.003) and 7.3% (p= 1.3 x 10−4 ) of BMI-z and SDQ variances. cg23166710 was associated with both childhood phenotypes and correlated with NEGR1 placental expression (r=−0.22, p=0.04), suggesting its possible functional role. Together, maternal metabolic characteristics during pregnancy with NEGR1 DNAm levels explained 7.4% (p=4.2 x 10−4 ) of BMI-z and 14.2% (p=2.8 x 10−7 ) of SDQ variance at 3yo. This longitudinal study suggests that placental NEGR1 DNAm is associated with adiposity and neurodevelopment in preschool children and highlights its potential role in their comorbidity. [ABSTRACT FROM AUTHOR]- Published
- 2020
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20. Numerical and experimental studies of long-range magnetic dipolar interactions.
- Author
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Ledbetter, M. P., Savukov, I. M., Bouchard, L.-S., and Romalis, M. V.
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NUMERICAL analysis ,MAGNETIC dipoles ,DIPOLE moments ,MAGNETIC fields ,MAGNETOMETERS - Abstract
We describe several numerical methods developed to analyze the behavior of spin polarized liquids in the presence of long-range magnetic dipolar interactions and external field gradients. Two of the methods use a discrete lattice of spins. In the first we calculate the magnetic field from the lattice of spins directly, either in the rotating frame, or in the lab frame. In the second method we include the dipolar fields from linear magnetization gradients analytically and calculate the dipolar fields from higher order gradients in Fourier space, where they are a local function of the magnetization. In the third method the magnetization is expanded in a Taylor series and the dipolar fields are calculated analytically for each term. The results of these calculations are compared to experimental data, in which we use two superconducting quantum interference device magnetometers adjacent to a spherical sample of hyperpolarized liquid
129 Xe to detect the evolution of magnetization gradients. In particular, we observe an increase by a factor of 100 of the spin dephasing time in a longitudinal magnetic field gradient due to dipolar interactions of the spins. While each of the numerical techniques has certain limitations, they are generally in agreement with each other and with experimental data. © 2004 American Institute of Physics. [ABSTRACT FROM AUTHOR]- Published
- 2004
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21. Assessment of the American Heart Association's "Life's simple 7" score in French-speaking adults from Québec.
- Author
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Harrison, S., Couillard, C., Robitaille, J., Vohl, M.-C., Bélanger, M., Desroches, S., Provencher, V., Rabasa-Lhoret, R., Bouchard, L., Langlois, M.-F., Houle, J., Lemieux, S., and Lamarche, B.
- Abstract
Background and Aims: The "Life's Simple 7" (LS7) metrics were developed by the American Heart Association (AHA) to assess and promote cardiovascular health in the American population. The purpose of this study was to assess the overall cardiovascular health of French-speaking adults from the Province of Quebec using the LS7 score.Methods and Results: A total of 777 age and sex-representative participants of five different administrative regions in the Province of Quebec (387 men and 390 women; mean age ± SEM: 41.9 ± 0.1 years) were included in these analyses. Metrics of the LS7 score (smoking, physical activity, diet, body mass index, blood pressure, fasting total cholesterol and blood glucose) were analysed to generate a final score ranging from 0 to 7. Only 0.5% of participants met all criteria for ideal cardiovascular health. The diet metric showed the lowest prevalence of "ideal" scores (4.8%) whereas not smoking was the metric with the highest prevalence (88.1%). Women had a higher LS7 score than men, while age and education level (negative and positive association, respectively; p < 0.0001) were also associated with the LS7 score.Conclusion: Consistent with studies conducted among other populations, very few French-speaking adults from the Province of Quebec achieve an ideal cardiovascular health. These data indicate that further public health efforts aimed at promoting the LS7 metrics, focusing primarily on diet, are urgently needed. Specific groups, including older adults and those with lower levels of education, should be targeted when developing cardiovascular health promotion interventions. [ABSTRACT FROM AUTHOR]- Published
- 2019
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22. DNA METHYLATION OF AN INTRONIC ENHANCER DYSREGULATES PHOSPHOLIPID PHOSPHATASE 3 AND PROMOTES OSTEOGENESIS IN THE AORTIC VALVE
- Author
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Mkannez, G., Nsaibia, M., Gagné-Ouellet, V., Boulanger, M., Argaud, D., Gaudreault, N., Rhéaume, G., Bouchard, L., Bossé, Y., and Mathieu, P.
- Published
- 2017
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23. (429) Baseline pain intensity and pain interference moderate effects of cognitive behavioral stress management on leukocyte inflammatory gene expression in women with breast cancer
- Author
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Taub, C., Fisher, H., Amiel, C., Jutagir, D., Bouchard, L., Gudenkauf, L., Blomberg, B., Diaz, A., Lechner, S., Carver, C., and Antoni, M.
- Published
- 2017
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24. Surface ligand-directed pair-wise hydrogenation for heterogeneous phase hyperpolarization.
- Author
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Glöggler, S., Grunfeld, A. M., Ertas, Y. N., McCormick, J., Wagner, S., and Bouchard, L.-S.
- Subjects
HYDROGENATION ,MAGNETIC resonance ,ADDITION reactions ,MAGNETIC fields ,OSCILLATIONS - Abstract
para-Hydrogen induced polarization is a technique of magnetic resonance hyperpolarization utilizing hydrogen's para-spin state for generating signal intensities at magnitudes far greater than state-of-the-art magnets. Platinum nanoparticle-catalysts with cysteine-capping are presented. The measured polarization is the highest reported to date in water, paving pathways for generating medical imaging contrast agents. [ABSTRACT FROM AUTHOR]
- Published
- 2016
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25. LONG NON-CODING RNAS AND OSTEOGENIC TRANSDIFFERENTIATION: ROLE IN THE CALCIFIC AORTIC VALVE STENOSIS
- Author
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Hadji, F., Boulanger, M., É Lavoie-Charland, Gaudreault, N., Guauque-Olarte, S., Bouchareb, R., Bouchard, L., Bossé, Y., and Mathieu, P.
- Published
- 2015
- Full Text
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26. Two-band model interpretation of the p- to n-transition in ternary tetradymite topological insulators.
- Author
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Chasapis, T. C., Leung, B., Dravid, V. P., Calta, N. P., Kanatzidis, M. G., Koumoulis, D., Bouchard, L.-S., and Lo, S.-H.
- Subjects
TOPOLOGICAL insulators ,METAL-insulator transitions ,MAGNETIC resonance microscopy ,FERMI level ,X-ray powder diffraction ,SCANNING electron microscopy - Abstract
The requirement for large bulk resistivity in topological insulators has led to the design of complex ternary and quaternary phases with balanced donor and acceptor levels. A common feature of the optimized phases is that they lie close to the p- to n-transition. The tetradymite Bi
2 Te3-x Sex system exhibits minimum bulk conductance at the ordered composition Bi2 Te2 Se. By combining local and integral measurements of the density of states, we find that the point of minimum electrical conductivity at x = 1.0 where carriers change from hole-like to electron-like is characterized by conductivity of the mixed type. Our experimental findings, which are interpreted within the framework of a two-band model for the different carrier types, indicate that the mixed state originates from different types of native defects that strongly compensate at the crossover point. [ABSTRACT FROM AUTHOR]- Published
- 2015
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- View/download PDF
27. Mendelian randomization supports causality between maternal hyperglycemia and epigenetic regulation of leptin gene in newborns.
- Author
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Allard, C, Desgagné, V, Patenaude, J, Lacroix, M, Guillemette, L, Battista, MC, Doyon, M, Ménard, J, Ardilouze, JL, Perron, P, Bouchard, L, and Hivert, MF
- Published
- 2015
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28. Tumorigenic activity of cloned polyoma virus DNA in newborn rats
- Author
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Gélinas, C., Bouchard, L., and Bastin, M.
- Published
- 1981
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29. Study of attenuation in tapered xenon-core hollow optical fibers.
- Author
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Arfaoui, Imen, Duguay, Michel A., and Bouchard, L.
- Published
- 2003
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30. Feasibility study of radio over optical transmission systems for increased spectrum efficiency.
- Author
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Haroun, I., Chan, G., Hafe, R., Bouchard, L., and Boucher, L.
- Published
- 2003
- Full Text
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31. Scientific, medical and industrial issues in breast and ovarian cancer genes research.
- Author
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Dalpe, R., Bouchard, L., and Ducharme, D.
- Published
- 2000
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32. Placental lipoprotein lipase DNA methylation levels are associated with gestational diabetes mellitus and maternal and cord blood lipid profiles.
- Author
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Houde, A. A., St-Pierre, J., Hivert, M. F., Baillargeon, J. P., Perron, P., Gaudet, D., Brisson, D., and Bouchard, L.
- Abstract
Placental lipoprotein lipase (LPL) is crucial for placental lipid transfer. Impaired LPL gene expression and activity were reported in pregnancies complicated by gestational diabetes mellitus (GDM) and intra-uterine growth restriction. We hypothesized that placental LPL DNA methylation is altered by maternal metabolic status and could contribute to fetal programming. The objective of this study was thus to assess whether placental LPL DNA methylation is associated with GDM and both maternal and newborn lipid profiles. Placenta biopsies were sampled at delivery from 126 women including 27 women with GDM diagnosed following a post 75 g-oral glucose tolerance test (OGTT) between weeks 24 and 28 of gestation. Placental LPL DNA methylation and expression levels were determined using bisulfite pyrosequencing and quantitative real-time PCR, respectively. DNA methylation levels within LPL proximal promoter region (CpG1) and intron 1 CpG island (CpGs 2 and 3) were lower in placenta of women with GDM. DNA methylation levels at LPL-CpG1 and CpG3 were also negatively correlated with maternal glucose (2-h post OGTT; r=–0.22; P=0.02) and HDL-cholesterol levels (third trimester of pregnancy; r=–0.20; p=0.03), respectively. Moreover, we report correlation between LPL-CpG2 DNA methylation and cord blood lipid profile. DNA methylation levels within intron 1 CpG island explained up to 26% (r⩽–0.51; P<0.001) of placental LPL mRNA expression variance. Overall, we showed that maternal metabolic profile is associated with placental LPL DNA methylation dysregulation. Our results suggest that site-specific LPL epipolymorphisms in the placenta are possibly functional and could potentially be involved in determining the future metabolic health of the newborn. [ABSTRACT FROM PUBLISHER]
- Published
- 2014
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33. Using a linguistic approach in pain medicine: advances in doctor-patient communication
- Author
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Bouchard, L.
- Published
- 2013
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- View/download PDF
34. Adaptations of Placental ABCA1 DNA Methylation to Maternal Glucose Metabolism and HDL-C Levels Are Associated With Cord Blood Lipid Profile
- Author
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Houde, A.A., Guay, S.P., Desgagné, V., Hivert, M.F., Baillargeon, J.P., Perron, P., St-Pierre, J., Gaudet, D., Brisson, D., and Bouchard, L.
- Published
- 2013
- Full Text
- View/download PDF
35. IGF1R and IGFBP3 Genes Are Hypomethylated in Placenta From Mothers With Impaired Glucose Tolerance
- Author
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Desgagné, V., Guay, S.P., Hivert, M.F., Perron, P., St-Pierre, J., Gaudet, D., Brisson, D., and Bouchard, L.
- Published
- 2013
- Full Text
- View/download PDF
36. PRDM16 Gene DNA Methylation Levels in the Placenta Are Associated With Maternal Overweight and Obesity at First Trimester of Pregnancy
- Author
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Côté, S., Brisson, D., Guérin, R., Perron, P., St-Pierre, J., Gaudet, D., Hivert, M.-F., and Bouchard, L.
- Published
- 2013
- Full Text
- View/download PDF
37. Observing Bragg-like diffraction via multiple coupled nuclear spins
- Author
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Tang, X.-P., Chin, C.-L., Bouchard, L.-S., Wehrli, F.W., and Warren, W.S.
- Published
- 2004
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38. DUSP1 Gene Polymorphisms Are Associated with Obesity-Related Metabolic Complications among Severely Obese Patients and Impact on Gene Methylation and Expression.
- Author
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Guénard, F., Bouchard, L., Tchernof, A., Deshaies, Y., Hould, F. S., Lebel, S., Marceau, P., Pérusse, L., and Vohl, M. C.
- Subjects
- *
OBESITY complications , *METABOLIC syndrome , *METHYLATION , *GENETIC polymorphisms , *GENE expression , *PHOSPHATASES - Abstract
TheDUSP1 gene encodes a member of the dual-specificity phosphatase family previously identified as being differentially expressed in visceral adipose tissue (VAT) of severely obesemen with versus without the metabolic syndrome. Objective. To test the association betweenDUSP1 polymorphisms, obesity-relatedmetabolic complications, gene methylation, and expression levels inVAT. Methods. The DUSP1 locus and promoter region were sequenced in 25 individuals. SNPs were tested for association with obesity-related complications in a cohort of more than 1900 severely obese individuals. The impact of SNPs on methylation levels of 36 CpG sites and correlations between DNA methylation and gene expression levels in VAT were computed in a subset of 14 samples. Results. Heterozygotes for rs881150 had lowerHDL-cholesterol levels (HDL-C; P= 0.01), and homozygotes for theminor allele of rs13184134 and rs7702178 had increased fasting glucose levels (P= 0.04 and 0.01, resp.). rs881150 was associated with methylation levels of CpG sites located ~1250 bp upstream the transcription start site. Methylation levels of 4 CpG sites were inversely correlated with DUSP1 gene expression. Conclusion. These results suggest that DUSP1 polymorphismsmodulate plasma glucose andHDL-C levels in obese patients possibly through alterations of DNA methylation and gene expression levels. [ABSTRACT FROM AUTHOR]
- Published
- 2013
- Full Text
- View/download PDF
39. Macro-scale topology optimization for controlling internal shear stress in a porous scaffold bioreactor.
- Author
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Youssef, K., Mack, J.J., Iruela-Arispe, M.L., and Bouchard, L.-S.
- Abstract
Shear stress is an important physical factor that regulates proliferation, migration, and morphogenesis. In particular, the homeostasis of blood vessels is dependent on shear stress. To mimic this process ex vivo, efforts have been made to seed scaffolds with vascular and other cell types in the presence of growth factors and under pulsatile flow conditions. However, the resulting bioreactors lack information on shear stress and flow distributions within the scaffold. Consequently, it is difficult to interpret the effects of shear stress on cell function. Such knowledge would enable researchers to improve upon cell culture protocols. Recent work has focused on optimizing the microstructural parameters of the scaffold to fine tune the shear stress. In this study, we have adopted a different approach whereby flows are redirected throughout the bioreactor along channels patterned in the porous scaffold to yield shear stress distributions that are optimized for uniformity centered on a target value. A topology optimization algorithm coupled to computational fluid dynamics simulations was devised to this end. The channel topology in the porous scaffold was varied using a combination of genetic algorithm and fuzzy logic. The method is validated by experiments using magnetic resonance imaging readouts of the flow field. Biotechnol. Bioeng. 2012; 109:1844-1854. © 2012 Wiley Periodicals, Inc. [ABSTRACT FROM AUTHOR]
- Published
- 2012
- Full Text
- View/download PDF
40. Placental adiponectin gene DNA methylation levels are associated with mothers' blood glucose concentration.
- Author
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Bouchard L, Hivert MF, Guay SP, St-Pierre J, Perron P, Brisson D, Bouchard, Luigi, Hivert, Marie-France, Guay, Simon-Pierre, St-Pierre, Julie, Perron, Patrice, and Brisson, Diane
- Abstract
Growing evidence suggests that epigenetic profile changes occurring during fetal development in response to in utero environment variations could be one of the mechanisms involved in the early determinants of adult chronic diseases. In this study, we tested whether maternal glycemic status is associated with the adiponectin gene (ADIPOQ) DNA methylation profile in placenta tissue, in maternal circulating blood cells, and in cord blood cells. We found that lower DNA methylation levels in the promoter of ADIPOQ on the fetal side of the placenta were correlated with higher maternal glucose levels during the second trimester of pregnancy (2-h glucose after the oral glucose tolerance test; r(s) ≤ -0.21, P < 0.05). Lower DNA methylation levels on the maternal side of the placenta were associated with higher insulin resistance index (homeostasis model assessment of insulin resistance) during the second and third trimesters of pregnancy (r(s) ≤ -0.27, P < 0.05). Finally, lower DNA methylation levels were associated with higher maternal circulating adiponectin levels throughout pregnancy (r(s) ≤ -0.26, P < 0.05). In conclusion, the ADIPOQ DNA methylation profile was associated with maternal glucose status and with maternal circulating adiponectin concentration. Because adiponectin is suspected to have insulin-sensitizing proprieties, these epigenetic adaptations have the potential to induce sustained glucose metabolism changes in the mother and offspring later in life. [ABSTRACT FROM AUTHOR]
- Published
- 2012
- Full Text
- View/download PDF
41. Peer Support among Inpatients in an Adult Mental Health Setting.
- Author
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Bouchard L, Montreuil M, and Gros C
- Subjects
- *
MENTAL illness treatment , *PEER relations , *PSYCHIATRIC hospital care , *MENTAL health services , *PEER counseling , *HOSPITAL patients , *ACTIVITIES of daily living , *INTERPERSONAL relations , *SOCIAL support , *ANALYSIS of variance , *INTERVIEWING , *RESEARCH methodology , *EVALUATION of medical care , *MILIEU therapy , *PSYCHOTHERAPY patients , *QUALITATIVE research , *AFFINITY groups , *THEMATIC analysis , *PSYCHOLOGICAL factors - Abstract
Existing literature indicates peer support is beneficial for people with mental illnesses and plays an important role in recovery. While many studies in the mental health field have focused on formalized peer support within the community, none have explored the experience of peer support among hospitalized patients. The purpose of the current study was to explore the perceptions and experiences of naturally occurring peer support among adult mental health inpatients. In-depth interviews were conducted with ten inpatients across four mental health units, two acute and two long-term. Interviews were transcribed verbatim and analyzed using a qualitative descriptive design. The data show that peer support among inpatients is extensive and beneficial, and occurs independently of staff involvement. The findings illustrate that peer support is a thoughtful process that involves observing, reflecting, taking action, and evaluating outcomes. Supportive actions include helping with activities of daily living, sharing material goods, providing information and advice, sharing a social life, and offering emotional support. This leads to various positive outcomes for providers and recipients of peer support, such as improved mental health outcomes and quality of life. Attempts to provide supportive interactions occur within a particular context, which can hinder or facilitate peer support. The new insights from this study could provide health professionals with an increased recognition of peer support and an appreciation for the unique role patients play in their own and in their peers’ recovery. These findings have important implications for establishing collaborative working partnerships with mental health inpatients. [ABSTRACT FROM AUTHOR]
- Published
- 2010
- Full Text
- View/download PDF
42. Multipole shimming of permanent magnets using harmonic corrector rings.
- Author
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Jachmann, R. C., Trease, D. R., Bouchard, L.-S., Sakellariou, D., Martin, R. W., Schlueter, R. D., Budinger, T. F., and Pines, A.
- Subjects
NUCLEAR magnetic resonance ,MAGNETIC resonance ,MAGNETIC fields ,RESONANCE ,QUANTUM theory ,ATOMS - Abstract
Shimming systems are required to provide sufficient field homogeneity for high resolution nuclear magnetic resonance (NMR). In certain specialized applications, such as rotating-field NMR and mobile ex situ NMR, permanent magnet-based shimming systems can provide considerable advantages. We present a simple two-dimensional shimming method based on harmonic corrector rings which can provide arbitrary multipole order shimming corrections. Results demonstrate, for example, that quadrupolar order shimming improves the linewidth by up to an order of magnitude. An additional order of magnitude reduction is in principle achievable by utilizing this shimming method for z-gradient correction and higher order xy gradients. [ABSTRACT FROM AUTHOR]
- Published
- 2007
- Full Text
- View/download PDF
43. Plasminogen-activator inhibitor-1 polymorphisms are associated with obesity and fat distribution in the Quebec Family Study: evidence of interactions with menopause.
- Author
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Bouchard L, Mauriège P, Vohl M, Bouchard C, Pérusse L, Bouchard, Luigi, Mauriège, Pascale, Vohl, Marie-Claude, Bouchard, Claude, and Pérusse, Louis
- Published
- 2005
- Full Text
- View/download PDF
44. Neuromedin ß: a strong candidate gene linking eating behaviors and susceptibility to obesity.
- Author
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Bouchard L, Drapeau V, Provencher V, Lemieux S, Chagnon Y, Rice T, Rao DC, Vohl M, Tremblay A, Bouchard C, and Pérusse L
- Abstract
BACKGROUND: Obesity is frequently associated with eating disorders, and evidence indicates that both conditions are influenced by genetic factors. However, little is known about the genes influencing eating behaviors. OBJECTIVE: The objective was to identify genes associated with eating behaviors. DESIGN: Three eating behaviors were assessed in 660 adults from the Quebec Family Study with the use of the Three-Factor Eating Questionnaire. A genome-wide scan was conducted with a total of 471 genetic markers spanning the 22 autosomes to identify quantitative trait loci for eating behaviors. Body composition and macronutrient and energy intakes were also measured. RESULTS: Four quantitative trait loci were identified for disinhibition and susceptibility to hunger. Of these, the best evidence of linkage was found between a locus on chromosome 15q24-q25 and disinhibition (P <0.0058) and susceptibility to hunger (P <0.0001). After fine-mapping, the peak linkage was found between markers D15S206 and D15S201 surrounding the neuromedin beta (NMB) gene. A missense mutation (p.P73T) located within the NMB gene showed significant associations with eating behaviors and obesity phenotypes. The T73T homozygotes were 2 times as likely to exhibit high levels of disinhibition (odds ratio: 1.8; 95% CI: 1.07, 2.89; P=0.03) and susceptibility to hunger (odds ratio: 1.9; 95% CI: 1.15, 3.06; P=0.01) as were the P73 allele carriers. Six-year follow-up data showed that the amount of body fat gain over time in T73T subjects was >2 times that than in P73P homozygotes (3.6 compared with 1.5 kg; P <0.05). CONCLUSION: The results suggest that NMB is a very strong candidate gene of eating behaviors and predisposition to obesity. Copyright © 2004 American Society for Clinical Nutrition [ABSTRACT FROM AUTHOR]
- Published
- 2004
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45. Prevention and genetic testing for breast cancer: variations in medical decisions.
- Author
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Bouchard L, Blancquaert I, Eisinger F, Foulkes WD, Evans G, Sobol H, and Julian-Reynier C
- Abstract
The discovery linking the genes BRCA1&2 to familial breast cancer played an important role in the clinical practice of geneticists and physicians. The availability of genetic tests for BRCA gene mutations prompted cancer geneticists to give information about genetic risk and to assess many women with a personal or family history of breast or ovarian cancer to inform them of preventive measures. These consist mainly of breast self-examination, mammography screening, chemoprevention and prophylactic surgery (mastectomy, oophorectomy). This paper examines clinical practices related to hereditary breast cancer testing and introduces a number of results from a survey carried out, between 1996 and 1998, in three clinics located in Montreal (Quebec, Canada), Marseilles (France) and Manchester (Great Britain). Results show substantial differences in the way cancer geneticists deal with environmental risk factors, breast and ovarian cancer testing, and chemoprevention and prophylactic surgery. Differences across cities persist in the multivariate analysis, suggesting that attitudes towards preventive measures may be partially explained by cultural factors. Different dimensions of culture are discussed including the social representation of health and risk, the interpretation of scientific evidence and the role of innovation leadership. [ABSTRACT FROM AUTHOR]
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- 2004
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46. Health behaviors of nursing students: a longitudinal study.
- Author
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Clément M, Jankowski LW, Bouchard L, Perreault M, and Lepage Y
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- 2002
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47. Women's attitudes toward preventive strategies for hereditary breast or ovarian carcinoma differ from one country to another: differences among English, French, and Canadian women.
- Author
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Julian-Reynier, Claire M., Bouchard, Louise J., Evans, D. Gareth, Eisinger, François A., Foulkes, William D., Kerr, Bronwyn, Blancquaert, Ingeborg R., Moatti, Jean-Paul, Sobol, Hagay H., Julian-Reynier, C M, Bouchard, L J, Evans, D G, Eisinger, F A, Foulkes, W D, Kerr, B, Blancquaert, I R, Moatti, J P, and Sobol, H H
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- 2001
- Full Text
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48. Abstract No. 80: Value of liver volume/patient weight ratio to predict post-TIPS hepatic encephalopathy
- Author
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Dion-Cloutier, P., Olivié, D., Perreault, P., Bouchard, L., and Pomier-Layrargues, G.
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- 2011
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49. 211 - Cardiovascular risk factors in severe obesity are associated with the inflammatory and immune-response IFI30 and TSLP genes
- Author
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Turcot, V., Bouchard, L., Faucher, G., Garneau, V., Tchernof, A., Deshaies, Y., Marceau, S., Biron, S., Lescelleur, O., Biertho, L., and Vohl, M.C.
- Published
- 2011
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- View/download PDF
50. 30 - Placental adiponectin gene DNA methylation levels is correlated with maternal blood glucose concentration
- Author
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Bouchard, L., Guay, S.-P., St-Pierre, J., Hivert, M.-F., Perron, P., and Brisson, D.
- Published
- 2011
- Full Text
- View/download PDF
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