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Olvera N, Sánchez-Valle J, Núñez-Carpintero I, Rojas-Quintero J, Noell G, Casas-Recasens S, Faiz A, Hansbro P, Guirao A, Lepore R, Cirillo D, Agustí A, Polverino F, Valencia A, Faner R. Lung Tissue Multi-Layer Network Analysis Uncovers the Molecular Heterogeneity of COPD. Am J Respir Crit Care Med 2024. [PMID: 38626356 DOI: 10.1164/rccm.202303-0500oc] [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: 03/15/2023] [Accepted: 04/16/2024] [Indexed: 04/18/2024] Open
Abstract
BACKGROUND Chronic Obstructive Pulmonary Disease (COPD) is a heterogeneous condition. We hypothesized that the unbiased integration of different COPD lung omics using a novel multi-layer approach may unravel mechanisms associated with clinical characteristics. METHODS We profiled mRNA, miRNA and methylome in lung tissue samples from 135 former smokers with COPD. For each omic (layer) we built a patient network based on molecular similarity. The three networks were used to build a multi-layer network, and optimization of multiplex-modularity was employed to identify patient communities across the three distinct layers. Uncovered communities were related to clinical features. RESULTS We identified five patient communities in the multi-layer network which were molecularly distinct and related to clinical characteristics, such as FEV1 and blood eosinophils. Two communities (C#3 and C#4) had both similarly low FEV1 values and emphysema, but were molecularly different: C#3, but not C#4, presented B and T cell signatures and a downregulation of secretory (SCGB1A1/SCGB3A1) and ciliated cells. A machine learning model was set up to discriminate C#3 and C#4 in our cohort, and to validate them in an independent cohort. Finally, using spatial transcriptomics we characterized the small airway differences between C#3 and C#4, identifying an upregulation of T/B cell homing chemokines, and bacterial response genes in C#3. CONCLUSIONS A novel multi-layer network analysis is able to identify clinically relevant COPD patient communities. Patients with similarly low FEV1 and emphysema can have molecularly distinct small airways and immune response patterns, indicating that different endotypes can lead to similar clinical presentation.
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Affiliation(s)
- Nuria Olvera
- Institut d'Investigacions Biomediques August Pi i Sunyer, 146245, Barcelona, Catalunya, Spain
- Barcelona Supercomputing Center, 132144, Barcelona, Spain
- CIBERES, 568067, Madrid, Comunidad de Madrid, Spain
| | | | | | | | | | | | - Alen Faiz
- University of Technology Sydney, 1994, Respiratory Bioinformatics and Molecular Biology (RBMB), School of Life Sciences, Sydney, New South Wales, Australia
| | - Philip Hansbro
- University of Technology Sydney, 1994, Sydney, New South Wales, Australia
| | - Angela Guirao
- Hospital Clinic de Barcelona, 16493, Barcelona, Catalunya, Spain
| | - Rosalba Lepore
- Barcelona Supercomputing Center, 132144, Barcelona, Spain
- University Hospital Basel, 30262, Basel, BS, Switzerland
| | - Davide Cirillo
- Barcelona Supercomputing Center, 132144, Barcelona, Spain
| | - Alvar Agustí
- Fundacio Clinic per a la Recerca Biomedica, 189152, Barcelona, Spain
| | - Francesca Polverino
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, Baylor College of Medicine, Houston, United States
| | - Alfonso Valencia
- Barcelona Supercomputing Center, 132144, Barcelona, Spain
- ICREA, 117370, Barcelona, Catalunya, Spain
| | - Rosa Faner
- Institut d'Investigacions Biomèdiques August Pi i Sunyer, 146245, Barcelona, Catalunya, Spain;
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Shteinberg M, Sibila O, Stein N, Faner R, Jordan A, Olvera N, Sivapalan P, Jensen JUS, Crichton M, Marrades P, Chalmers JD, Meyer CN, Saliba W. Risk of SARS-CoV-2 Infection and Disease Severity Among People With Bronchiectasis: Analysis of Three Population Registries. Chest 2024; 165:79-83. [PMID: 37574165 DOI: 10.1016/j.chest.2023.08.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 07/17/2023] [Accepted: 08/06/2023] [Indexed: 08/15/2023] Open
Affiliation(s)
- Michal Shteinberg
- Pulmonary Institute and CF Center, Carmel Medical Center, Haifa, Israel; B. Rappaport Faculty of Medicine, The Technion-Israel Institute of Technology, Haifa, Israel.
| | - Oriol Sibila
- Respiratory Department, Hospital Clinic, University of Barcelona, Barcelona, Spain
| | - Nili Stein
- Department of Community Medicine and Epidemiology, Carmel Medical Center, Haifa, Israel
| | - Rosa Faner
- Respiratory Department, Hospital Clinic, University of Barcelona, Barcelona, Spain
| | - Alexander Jordan
- Department of Internal Medicine, Herlev and Gentofte Hospital, Copenhagen University Hospital, Copenhagen, Denmark
| | - Nuria Olvera
- Respiratory Department, Hospital Clinic, University of Barcelona, Barcelona, Spain
| | - Pradeesh Sivapalan
- Department of Internal Medicine, Herlev and Gentofte Hospital, Copenhagen University Hospital, Copenhagen, Denmark
| | - Jens Ulrik S Jensen
- Department of Internal Medicine, Herlev and Gentofte Hospital, Copenhagen University Hospital, Copenhagen, Denmark
| | - Megan Crichton
- Division of Molecular and Clinical Medicine, University of Dundee, Ninewells Hospital and Medical School, Dundee, England
| | - Pau Marrades
- Respiratory Department, Hospital Clinic, University of Barcelona, Barcelona, Spain
| | - James D Chalmers
- Division of Molecular and Clinical Medicine, University of Dundee, Ninewells Hospital and Medical School, Dundee, England
| | - Christian N Meyer
- Department of Internal Medicine, Herlev and Gentofte Hospital, Copenhagen University Hospital, Copenhagen, Denmark; Department of Medicine, Respiratory Unit, SUH-Roskilde, Copenhagen, Denmark
| | - Walid Saliba
- Department of Community Medicine and Epidemiology, Carmel Medical Center, Haifa, Israel; B. Rappaport Faculty of Medicine, The Technion-Israel Institute of Technology, Haifa, Israel
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Bertels X, Edris A, Garcia-Aymerich J, Faner R, Meteran H, Sigsgaard T, Alter P, Vogelmeier C, Olvera N, Kermani NZ, Agusti A, Donaldson GC, Wedzicha JA, Brusselle GG, Backman H, Rönmark E, Lindberg A, Vonk JM, Chung KF, Adcock IM, van den Berge M, Lahousse L. Phenotyping asthma with airflow obstruction in middle-aged and older adults: a CADSET clinical research collaboration. BMJ Open Respir Res 2023; 10:e001760. [PMID: 37612099 PMCID: PMC10450061 DOI: 10.1136/bmjresp-2023-001760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 07/31/2023] [Indexed: 08/25/2023] Open
Abstract
BACKGROUND The prevalence and clinical profile of asthma with airflow obstruction (AO) remain uncertain. We aimed to phenotype AO in population- and clinic-based cohorts. METHODS This cross-sectional multicohort study included adults ≥50 years from nine CADSET cohorts with spirometry data (N=69 789). AO was defined as ever diagnosed asthma with pre-BD or post-BD FEV1/FVC <0.7 in population-based and clinic-based cohorts, respectively. Clinical characteristics and comorbidities of AO were compared with asthma without airflow obstruction (asthma-only) and chronic obstructive pulmonary disease (COPD) without asthma history (COPD-only). ORs for comorbidities adjusted for age, sex, smoking status and body mass index (BMI) were meta-analysed using a random effects model. RESULTS The prevalence of AO was 2.1% (95% CI 2.0% to 2.2%) in population-based, 21.1% (95% CI 18.6% to 23.8%) in asthma-based and 16.9% (95% CI 15.8% to 17.9%) in COPD-based cohorts. AO patients had more often clinically relevant dyspnoea (modified Medical Research Council score ≥2) than asthma-only (+14.4 and +14.7 percentage points) and COPD-only (+24.0 and +5.0 percentage points) in population-based and clinic-based cohorts, respectively. AO patients had more often elevated blood eosinophil counts (>300 cells/µL), although only significant in population-based cohorts. Compared with asthma-only, AO patients were more often men, current smokers, with a lower BMI, had less often obesity and had more often chronic bronchitis. Compared with COPD-only, AO patients were younger, less often current smokers and had less pack-years. In the general population, AO patients had a higher risk of coronary artery disease than asthma-only and COPD-only (OR=2.09 (95% CI 1.26 to 3.47) and OR=1.89 (95% CI 1.10 to 3.24), respectively) and of depression (OR=1.41 (95% CI 1.19 to 1.67)), osteoporosis (OR=2.30 (95% CI 1.43 to 3.72)) and gastro-oesophageal reflux disease (OR=1.68 (95% CI 1.06 to 2.68)) than COPD-only, independent of age, sex, smoking status and BMI. CONCLUSIONS AO is a relatively prevalent respiratory phenotype associated with more dyspnoea and a higher risk of coronary artery disease and elevated blood eosinophil counts in the general population compared with both asthma-only and COPD-only.
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Affiliation(s)
- Xander Bertels
- Department of Bioanalysis, Ghent University, Gent, Belgium
- Department of Epidemiology, Erasmus MC, Rotterdam, The Netherlands
| | - Ahmed Edris
- Department of Bioanalysis, Ghent University, Gent, Belgium
- Department of Epidemiology, Erasmus MC, Rotterdam, The Netherlands
| | - Judith Garcia-Aymerich
- Non-Communicable Diseases and Environment Programme, ISGlobal, Barcelona, Spain
- Centro Investigaciones Biomédicas en Red (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
| | - Rosa Faner
- Centro Investigaciones Biomédicas en Red (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
- Institut d'Investigacions Biomédiques August Pi i Sunyer (IDIBAPS), Hospital Clinic de Barcelona, Barcelona, Spain
- Department of Biomedical Sciences, University of Barcelona, Barcelona, Spain
| | - Howraman Meteran
- Department of Respiratory Medicine, Copenhagen University Hospital-Amager and Hvidovre, Kobenhagen, Denmark
- Environment, Occupation and Health, Danish Ramazzini Centre, Department of Public Health, Aarhus University, Aarhus, Denmark
| | - Torben Sigsgaard
- Environment, Occupation and Health, Danish Ramazzini Centre, Department of Public Health, Aarhus University, Aarhus, Denmark
| | - Peter Alter
- Department of Medicine, Pulmonary and Critical Care Medicine, Philipps University of Marburg, Marburg, Germany
| | - Claus Vogelmeier
- Department of Medicine, Pulmonary and Critical Care Medicine, Philipps University of Marburg, Marburg, Germany
- Department of Respiratory and Critical Care Medicine and Ludwig Boltzmann Institute for COPD and Respiratory Epidemiology, Otto Wagner Hospital, Vienna, Austria
| | - Nuria Olvera
- Centro Investigaciones Biomédicas en Red (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
- Institut d'Investigacions Biomédiques August Pi i Sunyer (IDIBAPS), Hospital Clinic de Barcelona, Barcelona, Spain
| | | | - Alvar Agusti
- Centro Investigaciones Biomédicas en Red (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
- Institut d'Investigacions Biomédiques August Pi i Sunyer (IDIBAPS), Hospital Clinic de Barcelona, Barcelona, Spain
- Department of Medicine, University of Barcelona, Barcelona, Spain
- Respiratory Institute, Hospital Clinic de Barcelona, Barcelona, Spain
| | - Gavin C Donaldson
- National Heart and Lung Institute & Data Science Institute, Imperial College London, London, UK
| | - Jadwiga A Wedzicha
- National Heart and Lung Institute & Data Science Institute, Imperial College London, London, UK
| | - Guy G Brusselle
- Department of Epidemiology, Erasmus MC, Rotterdam, The Netherlands
- Department of Respiratory Medicine, Erasmus MC, Rotterdam, The Netherlands
- Department of Respiratory Medicine, Ghent University Hospital, Ghent, Belgium
| | - Helena Backman
- Department of Public Health and Clinical Medicine, Umeå University, Umea, Sweden
| | - Eva Rönmark
- Department of Public Health and Clinical Medicine, Umeå University, Umea, Sweden
| | - Anne Lindberg
- Department of Public Health and Clinical Medicine, Umeå University, Umea, Sweden
| | - Judith M Vonk
- Department of Epidemiology, University Medical Centre Groningen, Groningen, The Netherlands
- Groningen Research Institute for Asthma and COPD (GRIAC), University Medical Centre Groningen, Groningen, The Netherlands
| | - Kian Fan Chung
- National Heart and Lung Institute & Data Science Institute, Imperial College London, London, UK
| | - Ian M Adcock
- National Heart and Lung Institute & Data Science Institute, Imperial College London, London, UK
| | - Maarten van den Berge
- Groningen Research Institute for Asthma and COPD (GRIAC), University Medical Centre Groningen, Groningen, The Netherlands
- Department of Pulmonology, University Medical Centre Groningen, Groningen, The Netherlands
| | - Lies Lahousse
- Department of Bioanalysis, Ghent University, Gent, Belgium
- Department of Epidemiology, Erasmus MC, Rotterdam, The Netherlands
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Olvera N, Casas S, Vonk JM, Garcia T, Boezen HM, van den Berge M, Agusti A, Faner R. Circulating Biomarkers in Young Individuals with Low Peak FEV 1. Am J Respir Crit Care Med 2023; 207:354-358. [PMID: 36194601 DOI: 10.1164/rccm.202205-0855le] [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: 02/03/2023] Open
Affiliation(s)
- Nuria Olvera
- Institut d'Investigacions Biomediques August Pi i Sunyer (IDIBAPS) Barcelona, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBER) Barcelona, Spain
| | - Sandra Casas
- Institut d'Investigacions Biomediques August Pi i Sunyer (IDIBAPS) Barcelona, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBER) Barcelona, Spain
| | - Judith M Vonk
- Department of Epidemiology University of Groningen, University Medical Center Groningen Groningen, the Netherlands.,Groningen Research Institute for Asthma and COPD (GRIAC) University of Groningen, University Medical Center Groningen Groningen, the Netherlands
| | - Tamara Garcia
- Institut d'Investigacions Biomediques August Pi i Sunyer (IDIBAPS) Barcelona, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBER) Barcelona, Spain
| | - H Marike Boezen
- Department of Epidemiology University of Groningen, University Medical Center Groningen Groningen, the Netherlands.,Groningen Research Institute for Asthma and COPD (GRIAC) University of Groningen, University Medical Center Groningen Groningen, the Netherlands
| | - Maarten van den Berge
- Groningen Research Institute for Asthma and COPD (GRIAC) University of Groningen, University Medical Center Groningen Groningen, the Netherlands
| | - Alvar Agusti
- Institut d'Investigacions Biomediques August Pi i Sunyer (IDIBAPS) Barcelona, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBER) Barcelona, Spain.,University of Barcelona Barcelona, Spain.,Hospital Clinic Barcelona, Spain
| | - Rosa Faner
- Institut d'Investigacions Biomediques August Pi i Sunyer (IDIBAPS) Barcelona, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBER) Barcelona, Spain.,University of Barcelona Barcelona, Spain
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5
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Allinson JP, Afzal S, Çolak Y, Jarvis D, Backman H, van den Berge M, Boezen HM, Breyer MK, Breyer-Kohansal R, Brusselle G, Burghuber OC, Faner R, Hartl S, Lahousse L, Langhammer A, Lundbäck B, Nwaru BI, Rönmark E, Vikjord SAA, Vonk JM, Wijnant SRA, Lange P, Nordestgaard BG, Olvera N, Agusti A, Donaldson GC, Wedzicha JA, Vestbo J, Vanfleteren LEGW. Changes in lung function in European adults born between 1884 and 1996 and implications for the diagnosis of lung disease: a cross-sectional analysis of ten population-based studies. Lancet Respir Med 2021; 10:83-94. [PMID: 34619103 DOI: 10.1016/s2213-2600(21)00313-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 06/10/2021] [Accepted: 06/22/2021] [Indexed: 02/07/2023]
Abstract
BACKGROUND During the past century, socioeconomic and scientific advances have resulted in changes in the health and physique of European populations. Accompanying improvements in lung function, if unrecognised, could result in the misclassification of lung function measurements and misdiagnosis of lung diseases. We therefore investigated changes in population lung function with birth year across the past century, accounting for increasing population height, and examined how such changes might influence the interpretation of lung function measurements. METHODS In our analyses of cross-sectional data from ten European population-based studies, we included individuals aged 20-94 years who were born between 1884 and 1996, regardless of previous respiratory diagnoses or symptoms. FEV1, forced vital capacity (FVC), height, weight, and smoking behaviour were measured between 1965 and 2016. We used meta-regression to investigate how FEV1 and FVC (adjusting for age, study, height, sex, smoking status, smoking pack-years, and weight) and the FEV1/FVC ratio (adjusting for age, study, sex, and smoking status) changed with birth year. Using estimates from these models, we graphically explored how mean lung function values would be expected to progressively deviate from predicted values. To substantiate our findings, we used linear regression to investigate how the FEV1 and FVC values predicted by 32 reference equations published between 1961 and 2015 changed with estimated birth year. FINDINGS Across the ten included studies, we included 243 465 European participants (mean age 51·4 years, 95% CI 51·4-51·5) in our analysis, of whom 136 275 (56·0%) were female and 107 190 (44·0%) were male. After full adjustment, FEV1 increased by 4·8 mL/birth year (95% CI 2·6-7·0; p<0·0001) and FVC increased by 8·8 mL/birth year (5·7-12·0; p<0·0001). Birth year-related increases in the FEV1 and FVC values predicted by published reference equations corroborated these findings. This height-independent increase in FEV1 and FVC across the last century will have caused mean population values to progressively exceed previously predicted values. However, the population mean adjusted FEV1/FVC ratio decreased by 0·11 per 100 birth years (95% CI 0·09-0·14; p<0·0001). INTERPRETATION If current diagnostic criteria remain unchanged, the identified shifts in European values will allow the easier fulfilment of diagnostic criteria for lung diseases such as chronic obstructive pulmonary disease, but the systematic underestimation of lung disease severity. FUNDING The European Respiratory Society, AstraZeneca, Chiesi Farmaceutici, GlaxoSmithKline, Menarini, and Sanofi-Genzyme.
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Affiliation(s)
- James P Allinson
- Department of Respiratory Medicine, Royal Brompton Hospital, London, UK; National Heart and Lung Institute, Imperial College London, London, UK.
| | - Shoaib Afzal
- Department of Clinical Biochemistry, Herlev and Gentofte Hospital, Copenhagen University Hospital, Herlev, Denmark; Copenhagen General Population Study, Herlev and Gentofte Hospital, Copenhagen University Hospital, Herlev, Denmark; Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Yunus Çolak
- Department of Clinical Biochemistry, Herlev and Gentofte Hospital, Copenhagen University Hospital, Herlev, Denmark; Copenhagen General Population Study, Herlev and Gentofte Hospital, Copenhagen University Hospital, Herlev, Denmark; Department of Internal Medicine, Section of Respiratory Medicine, Herlev and Gentofte Hospital, Copenhagen University Hospital, Herlev, Denmark; Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Debbie Jarvis
- National Heart and Lung Institute, Imperial College London, London, UK
| | - Helena Backman
- Department of Public Health and Clinical Medicine, The OLIN Unit, Section of Sustainable Health, Umeå University, Umeå, Sweden
| | - Maarten van den Berge
- Department of Pulmonary Diseases, University of Groningen, University Medical Center Groningen, Groningen, Netherlands; Groningen Research Institute for Asthma and COPD, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - H Marike Boezen
- Groningen Research Institute for Asthma and COPD, University of Groningen, University Medical Center Groningen, Groningen, Netherlands; Department of Epidemiology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Marie-Kathrin Breyer
- Ludwig Boltzmann Institute for Lung Health, Vienna, Austria; Department of Respiratory and Critical Care Medicine, Clinic Penzing, Vienna, Austria
| | - Robab Breyer-Kohansal
- Ludwig Boltzmann Institute for Lung Health, Vienna, Austria; Department of Respiratory and Critical Care Medicine, Clinic Penzing, Vienna, Austria
| | - Guy Brusselle
- Department of Respiratory Medicine, Ghent University Hospital, Ghent, Belgium; Department of Epidemiology, Erasmus Medical Center Rotterdam, Rotterdam, Netherlands; Department of Respiratory Medicine, Erasmus Medical Center Rotterdam, Rotterdam, Netherlands
| | - Otto C Burghuber
- Ludwig Boltzmann Institute for Lung Health, Vienna, Austria; Faculty of Medicine, Sigmund Freud University, Vienna, Austria
| | - Rosa Faner
- Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain; Centro de Investigación Biomedica en Red Enfermedades Respiratorias, Barcelona, Spain
| | - Sylvia Hartl
- Ludwig Boltzmann Institute for Lung Health, Vienna, Austria; Department of Respiratory and Critical Care Medicine, Clinic Penzing, Vienna, Austria; Faculty of Medicine, Sigmund Freud University, Vienna, Austria
| | - Lies Lahousse
- Department of Epidemiology, Erasmus Medical Center Rotterdam, Rotterdam, Netherlands; Department of Bioanalysis, Faculty of Pharmaceutical Sciences, Ghent University, Ghent, Belgium
| | - Arnulf Langhammer
- HUNT Research Centre, Department of Public Health and Nursing, Faculty of Medicine and Health Sciences, NTNU, Levanger, Norway; Levanger Hospital, Nord-Trøndelag Hospital Trust, Levanger, Norway
| | - Bo Lundbäck
- Krefting Research Centre, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Bright I Nwaru
- Krefting Research Centre, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden; Wallenberg Centre for Molecular and Translational Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Eva Rönmark
- Department of Public Health and Clinical Medicine, The OLIN Unit, Section of Sustainable Health, Umeå University, Umeå, Sweden
| | - Sigrid A Aalberg Vikjord
- HUNT Research Centre, Department of Public Health and Nursing, Faculty of Medicine and Health Sciences, NTNU, Levanger, Norway; Department of Medicine and Rehabilitation, Nord-Trøndelag Hospital Trust, Levanger, Norway
| | - Judith M Vonk
- Groningen Research Institute for Asthma and COPD, University of Groningen, University Medical Center Groningen, Groningen, Netherlands; Department of Epidemiology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Sara R A Wijnant
- Department of Respiratory Medicine, Ghent University Hospital, Ghent, Belgium; Department of Epidemiology, Erasmus Medical Center Rotterdam, Rotterdam, Netherlands; Department of Bioanalysis, Faculty of Pharmaceutical Sciences, Ghent University, Ghent, Belgium
| | - Peter Lange
- Department of Internal Medicine, Section of Respiratory Medicine, Herlev and Gentofte Hospital, Copenhagen University Hospital, Herlev, Denmark; Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark; Department of Public Health, Section of Epidemiology, University of Copenhagen, Copenhagen, Denmark
| | - Børge G Nordestgaard
- Department of Clinical Biochemistry, Herlev and Gentofte Hospital, Copenhagen University Hospital, Herlev, Denmark; Copenhagen General Population Study, Herlev and Gentofte Hospital, Copenhagen University Hospital, Herlev, Denmark; Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Nuria Olvera
- Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain; Centro de Investigación Biomedica en Red Enfermedades Respiratorias, Barcelona, Spain
| | - Alvar Agusti
- Càtedra Salut Respiratòria, Universitat Barcelona, Spain; Respiratory Institute, Hospital Clinic, Barcelona, Spain; Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain; Centro de Investigación Biomedica en Red Enfermedades Respiratorias, Barcelona, Spain
| | - Gavin C Donaldson
- National Heart and Lung Institute, Imperial College London, London, UK
| | | | - Jørgen Vestbo
- Division of Infection, Immunity and Respiratory Medicine, University of Manchester, Manchester, UK; North West Lung Centre, Manchester University National Health Service Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK
| | - Lowie E G W Vanfleteren
- Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden; COPD Centre, Department of Respiratory Medicine and Allergology, Sahlgrenska University Hospital, Gothenburg, Sweden
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Ledoux T, Alexander T, Thompson M, Olmedo C, Arbona C, Olvera N. Experiential Internship to Encourage Hispanic Students to Enter the Nutrition and Dietetics Professions. J Acad Nutr Diet 2021. [DOI: 10.1016/j.jand.2021.08.044] [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: 10/20/2022]
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Edris A, Garcia-Aymerich J, Faner R, Meteran H, Sigsgaard T, Alter P, Vogelmeier C, Olvera N, Zounemat-Kermani N, Agusti A, Donaldson G, Wedzicha J, Brusselle G, Backman H, Boezen HM, Vonk J, Adcock I, Van Den Berge M, Lahousse L. Prevalence and characteristics of asthma with fixed airflow obstruction:a CADSET European multi-cohort collaboration. Epidemiology 2021. [DOI: 10.1183/13993003.congress-2021.pa3515] [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: 11/05/2022]
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Callender C, Velazquez D, Dave J, Olvera N, Chen T, Goldsworthy N, Thompson D. Comprehensive Nutrition and Cooking Education Programming Recommendations from Families in Underserved Communities. J Acad Nutr Diet 2020. [DOI: 10.1016/j.jand.2020.06.060] [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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Ledoux T, Cepni A, Taylor A, Crumbley C, Thompson D, Moran N, Olvera N, O'Connor D. Exploring Parent Feeding Practices, the Home Environment, and Toddler Diet. J Acad Nutr Diet 2020. [DOI: 10.1016/j.jand.2020.06.071] [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: 11/25/2022]
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Obrador Vera G, Villa A, Cuadra M, De Arrigunaga S, Cárdenas C, Bracho M, Sotelo A, Olvera N, Guitian M, Urquiza M. SUN-207 LONGITUDINAL FOLLOW-UP OF INCIDENT CHRONIC KIDNEY DISEASE (CKD) IN THE KEEP MEXICO CKD SCREENING PROGRAM. Kidney Int Rep 2019. [DOI: 10.1016/j.ekir.2019.05.610] [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] Open
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Fehniger J, Dao F, Olvera N, Gerber D, Levine D. Loss of heterozygosity among short-term ovarian cancer survivors with germline mutations. Gynecol Oncol 2019. [DOI: 10.1016/j.ygyno.2019.04.186] [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: 11/26/2022]
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Jelinic P, Ricca J, Van Oudenhove E, Olvera N, Merghoub T, Levine D, Zamarin D. Immune-reactive microenvironment of small cell carcinoma of the ovary, hypercalcemic type provides a rationale for evaluating immunotherapies to treat this malignancy. Gynecol Oncol 2018. [DOI: 10.1016/j.ygyno.2018.04.440] [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: 11/29/2022]
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Schiavone M, Hussein Y, Olvera N, Soslow R, Levine D. TCGA-based risk stratification of early-stage, high-grade endometrioid endometrial carcinoma. Gynecol Oncol 2016. [DOI: 10.1016/j.ygyno.2016.04.319] [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: 10/21/2022]
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Lang LA, Garcia LT, Teich ST, Olvera N. Comparison of the impact on quality of life of immediate versus delayed implant placement supporting immediately loaded mandibular overdenture. Refuat Hapeh Vehashinayim (1993) 2016; 33:6-59. [PMID: 27295927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
OBJECTIVE No controlled clinical study has evaluated Oral Health Related Quality of Life (OHRQOL) of immediately placed and loaded implants retaining mandibular overdentures. This pilot study evaluated the impact of immediate loading of delayed versus immediately placed dental implants on overdenture patients' OHRQOL. MATERIALS AND METHODS Two patient treatment groups received a maxillary conventional complete denture, opposing a mandibular overdenture immediately loaded on implants with ball attachments; In group one a delayed implant placement surgical protocol was followed, whereas in group two, patients had mandibular teeth extracted and two implants immediately placed. OHRQOL for these patients was evaluated using a visual analog scale for 48 questions related to 6 domains; comfort, function, speech, esthetics, self-image and dental health. RESULTS There was no significant difference between the two groups when comparing answers to the pre- and post-treatment questionnaires. Pooled data showed significant differences for all domains between the pre-treatment and post-treatment responses, denoting improvement after an implant retained mandibular overdenture was delivered. CONCLUSION There was an improved quality of life in patients receiving immediately loaded mandibular overdentures supported by either delayed or immediately placed implants.
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Range C, Heart M, Posadas A, Mathews-Ewald M, Olvera N. Relationship between Maternal and Daughters Food Patterns in Hispanic Families. J Acad Nutr Diet 2015. [DOI: 10.1016/j.jand.2015.06.150] [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: 10/23/2022]
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Ducie J, Bogomolniy F, Dao F, Olvera N, Shaw P, Shih I, Kurman R, Soslow R, Cope L, Levine D. Integrated genomic analysis of STIC-associated high-grade serous carcinoma. Gynecol Oncol 2015. [DOI: 10.1016/j.ygyno.2015.01.338] [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: 11/27/2022]
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Levine D, Mueller J, Jelinic P, Olvera N, Dao F, Soslow R, Berger M. 4SMARCA4 mutations in small cell carcinoma of the ovary. Gynecol Oncol 2014. [DOI: 10.1016/j.ygyno.2014.07.081] [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: 11/16/2022]
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Barlin J, Zhou Q, Leitao M, Bisogna M, Olvera N, Hensley M, Schwartz G, Boyd J, Qin L, Levine D. Uterine leiomyosarcomas have reproducible molecular subtypes that correlate with survival. Gynecol Oncol 2013. [DOI: 10.1016/j.ygyno.2013.04.425] [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: 11/24/2022]
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De Brot M, Andrade VP, Morrogh M, Berger MF, Won HH, Koslow MS, Qin LX, Giri DD, Olvera N, Sakr RA, King TA. Abstract PD05-02: Novel mutations in lobular carcinoma in situ (LCIS) as uncovered by targeted parallel sequencing. Cancer Res 2012. [DOI: 10.1158/0008-5472.sabcs12-pd05-02] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: LCIS has traditionally been recognized as a marker of increased risk for the subsequent development of breast cancer, of either the lobular or ductal phenotype, yet due to the incidental nature of LCIS little is known about its underlying biology. Here we describe the first report of novel mutations in LCIS using targeted exome sequencing of fresh frozen tissue samples.
Methods: Fresh frozen tissue samples from patients with a prior history of LCIS undergoing therapeutic or risk-reducing mastectomy from 2003–08 were harvested and systematically reviewed to identify LCIS. Cells from individual LCIS lesions +/− associated cancers were collected by laser capture microdissection. For the purposes of this study, germline DNA (blood) and DNA from 12 unique LCIS lesions were subject to targeted parallel sequencing of exons corresponding to 230 cancer genes using the Illumina HiSeq 2000 platform. DNA from an associated ductal carcinoma in situ (DCIS) and/or an invasive ductal (IDC) or lobular (ILC) lesion was also available for 7 of these cases resulting in 41 samples from 12 pts for mutational analysis. Normalized (RMA) Affymetrix U133A gene expression data were also available.
Results: DNA profiling reliably identified 7 somatic mutations in 5/12 LCIS samples (41.7%). Of these, 4/7 mutations were base substitutions (missense mutations); and the others included: 1 deletion; 1 silent and 1 splice-site mutation. Mutations in LCIS were identified in 5/230 cancer genes analyzed, including: PIK3CA, CDH1, NOTCH4, PREX2 and ARAF. PIK3CA and CDH1 mutations were each identified in two samples, representing 4/7 (57.1%) mutations. Specific mutations found in LCIS and their frequencies are listed (table). Among 3 LCIS-ILC pairs, one shared the G914R mutation in PIK3CA, and 1/3 LCIS-IDC pairs exhibited an identical point mutation (R373W) in the NOTCH4 gene. No shared mutations were observed in 3 LCIS-DCIS pairs. Both CDH1 mutated cases were associated with decreased e-cadherin mRNA levels when compared to non-mutated cases (mean 9.88 vs 11.01), as was the NOTCH4 mutation (mean 6.02 vs 6.47). Mutations in ARAF and PREX2 were associated with increased mRNA levels, mean 7.07 vs 6.52 and 4.82 vs 4.22, respectively. The hotspot PIK3CA mutation (E545K) was also associated with increased gene expression (mean 5.15 vs 4.64) whereas the G914R mutant was associated with decreased expression (mean 4.13 vs 4.64).
Conclusions: This study represents the first targeted exon sequencing analysis of fresh frozen LCIS. Although LCIS has been regarded as a rather genetically stable lesion, somatic mutations were detected in 41.7% of lesions in this small cohort. While CDH1 mutations are expected in lobular neoplasia, this is the first report of mutations in ARAF, NOTCH4, PIK3CA and PREX2. Given the shared relevance of PIK3CA and PREX2 in the PI3K/AKT pathway, these findings suggest novel mechanisms for new chemoprevention strategies among women with LCIS.
Citation Information: Cancer Res 2012;72(24 Suppl):Abstract nr PD05-02.
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Affiliation(s)
- M De Brot
- Memorial Sloan-Kettering Cancer Center, New York, NY
| | - VP Andrade
- Memorial Sloan-Kettering Cancer Center, New York, NY
| | - M Morrogh
- Memorial Sloan-Kettering Cancer Center, New York, NY
| | - MF Berger
- Memorial Sloan-Kettering Cancer Center, New York, NY
| | - HH Won
- Memorial Sloan-Kettering Cancer Center, New York, NY
| | | | - L-X Qin
- Memorial Sloan-Kettering Cancer Center, New York, NY
| | - DD Giri
- Memorial Sloan-Kettering Cancer Center, New York, NY
| | - N Olvera
- Memorial Sloan-Kettering Cancer Center, New York, NY
| | - RA Sakr
- Memorial Sloan-Kettering Cancer Center, New York, NY
| | - TA King
- Memorial Sloan-Kettering Cancer Center, New York, NY
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Barlin J, Leitao M, Qin L, Bisogna M, Olvera N, Shih K, Hensley M, Schwartz G, Boyd J, Levine D. Uterine leiomyosarcomas are driven by cell cycle deregulation. Gynecol Oncol 2012. [DOI: 10.1016/j.ygyno.2011.12.329] [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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21
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Barlin J, Olvera N, Bogomolniy F, Dao F, Chi D, Jelinic P, Levine D. Validated gene targets associated with curatively treated advanced serous ovarian carcinoma. Gynecol Oncol 2012. [DOI: 10.1016/j.ygyno.2011.12.032] [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: 10/28/2022]
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22
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Levine D, Bogomolniy F, Dao F, Olvera N, Han G, Soslow R. Molecular profiling of advanced pelvic serous carcinoma associated with serous tubal intraepithelial carcinoma. Gynecol Oncol 2011. [DOI: 10.1016/j.ygyno.2010.12.064] [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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Diaz Romero C, Olvera N, Martínez H, Mtz Cedillo J, Cuellar M, Morales R, Álvarez M, Segura B, De la Garza J, Aguilar P. Paclitaxel plus carboplatin (PC) in patients with metastatic melanoma (MM): Experience in a single institution. J Clin Oncol 2009. [DOI: 10.1200/jco.2009.27.15_suppl.e20019] [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: 11/20/2022] Open
Abstract
e20019 Background: The number of agents active in patients with metastatic melanoma is limited and cure is not an objective for treatment at this stage, so that clinical benefit in these patients is the most important. The aim of the study was to evaluate the efficacy and safety of combination regimen consisting of paclitaxel and carboplatin as second-line chemotherapy, in patients with MM. Based on reports of responses to PC, 17 patients with MM was treated at the National Cancer Institute of Mexico. Methods: We evaluated retrospectively the combination of PC in patients with MM. Data regarding patient characteristics and outcomes were abstracted from medical records of NCI of Mexico from 01/05 to 12/08. The regimen was weekly paclitaxel (at a dose of 80 mg/m2) received on days 1, 8, and 15 of a 21-day cycle and carboplatin (AUC 5) on day 1. Response evaluation was using RECIST and toxicity was according to National Cancer Institute Common Toxicity Criteria. This study was approved by the hospital ethics committee. Results: Seventeen patients with MM were treated with PC. All patients were previously treated (and failed) with dacarbazine (DTIC). Sixteen were assessable for response with three cycles of chemotherapy and seventeen for toxicity. One patient was deemed to be ineligible because they presented severe hypersensitivity reaction to paclitaxel at beginning. Objective partial response were obtained in 4 patients (25%); 8 stable disease (50%) at least four months. No patient had a complete response to therapy. Progression disease was in 4 patients (25%). In 12 (75%) we noted clinical benefit. The median time to disease progression for the entire group was 4.2 months (range, 1–11 mos), with a median overall survival of 8.1 months (range, 5.6–10.5 mos). The toxicity grade 3 reported was thrombocytopenic in 2 patients (11%) and anemia in one patient (6%). Additional patients had reversible toxicities grade 3 including alopecia, nausea and fatigue; 2 of them presented moderate hypersensitivity reactions to paclitaxel. No toxic death was noted. Conclusions: The PC combination appears to be safety and well tolerated in second line chemotherapy in MM, however we need more patients to demonstrate a true clinical benefit, we outcomes are according with other clinical reports. No significant financial relationships to disclose.
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Affiliation(s)
| | - N. Olvera
- Instituto Nacional de Cancerologia, Mexico City, Mexico
| | - H. Martínez
- Instituto Nacional de Cancerologia, Mexico City, Mexico
| | | | - M. Cuellar
- Instituto Nacional de Cancerologia, Mexico City, Mexico
| | - R. Morales
- Instituto Nacional de Cancerologia, Mexico City, Mexico
| | - M. Álvarez
- Instituto Nacional de Cancerologia, Mexico City, Mexico
| | - B. Segura
- Instituto Nacional de Cancerologia, Mexico City, Mexico
| | | | - P Aguilar
- Instituto Nacional de Cancerologia, Mexico City, Mexico
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Frey MK, Olvera N, Bogomolniy F, Dao F, Borsu L, Konner JA, Rizvi NA, Barakat RR, Dickler MN, Levine DA. WNK1 haplotypes and bevacizumab-induced hypertension. J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.11003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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King TA, Li W, Yee C, Gemignani ML, Olvera N, Brogi E, Robson ME, Offit K, Norton L, Borgen PI, Boyd J. BRCA haploinsufficiency in human breast tumorigenesis. J Clin Oncol 2005. [DOI: 10.1200/jco.2005.23.16_suppl.9512] [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: 11/20/2022] Open
Affiliation(s)
- T. A. King
- Memorial Sloan-Kettering Cancer Ctr, New York, NY
| | - W. Li
- Memorial Sloan-Kettering Cancer Ctr, New York, NY
| | - C. Yee
- Memorial Sloan-Kettering Cancer Ctr, New York, NY
| | | | - N. Olvera
- Memorial Sloan-Kettering Cancer Ctr, New York, NY
| | - E. Brogi
- Memorial Sloan-Kettering Cancer Ctr, New York, NY
| | - M. E. Robson
- Memorial Sloan-Kettering Cancer Ctr, New York, NY
| | - K. Offit
- Memorial Sloan-Kettering Cancer Ctr, New York, NY
| | - L. Norton
- Memorial Sloan-Kettering Cancer Ctr, New York, NY
| | - P. I. Borgen
- Memorial Sloan-Kettering Cancer Ctr, New York, NY
| | - J. Boyd
- Memorial Sloan-Kettering Cancer Ctr, New York, NY
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Olvera N, Remy R, Power TG, Bellamy C, Hays J. Observed maternal strategies and children's health locus of control in low-income Mexican American families. J Fam Psychol 2001; 15:451-463. [PMID: 11584795 DOI: 10.1037/0893-3200.15.3.451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
This study examined the relationship among mothers' health locus of control (HLOC) beliefs, their socialization strategies, and their children's HLOC beliefs in 80 low-income Mexican American families. Maternal socialization strategies were assessed from videotaped interactions of mothers and children engaged in a structured task. Factor analysis of the coded strategies yielded 4 factors: Tell Answer, Teaching, Clarify, and Reinforce. Findings indicated that maternal-health-internally scores negatively predicted mothers' use of the Tell Answer strategies and positively predicted their use of Teaching strategies. Mothers who believed that Powerful Others (e.g., health professionals) controlled their health were more likely to use the Tell Answer strategy. In contrast, mothers who believed that health was due to chance were less likely to use Teaching. Maternal use of Teaching strategies predicted children's internal HLOC, whereas maternal Tell Answer strategies predicted children's external HLOC. Findings suggest that mothers' HLOC beliefs influence the socialization strategies they use and that these strategies are associated with children's HLOC beliefs.
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Affiliation(s)
- N Olvera
- University of Houston, Department of Health and Human Performance, 3855 Holman Street, Room 112, Houston, Texas 77204-6015, USA.
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Nicklas TA, Baranowski T, Baranowski JC, Cullen K, Rittenberry L, Olvera N. Family and child-care provider influences on preschool children's fruit, juice, and vegetable consumption. Nutr Rev 2001; 59:224-35. [PMID: 11475448 DOI: 10.1111/j.1753-4887.2001.tb07014.x] [Citation(s) in RCA: 247] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
Children's intakes of fruit, juice, and vegetables (FJV) do not meet the recommended minimum of five daily servings, placing them at increased risk for development of cancer and other diseases. Because children's food preferences and practices are initiated early in life (e.g., 2-5 years of age), early dietary intervention programs may have immediate nutritional benefit, as well as reduce chronic disease risk when learned healthful habits and preferences are carried into adulthood. Families and child-care settings are important social environments within which food-related behaviors among young children are developed. FJV preferences, the primary predictor of FJV consumption in children, are influenced by availability, variety, and repeated exposure. Caregivers (parents and child-care providers) can influence children's eating practices by controlling availability and accessibility of foods, meal structure, food modeling, food socialization practices, and food-related parenting style. Much remains to be learned about how these influences and practices affect the development of FJV preferences and consumption early in life.
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Affiliation(s)
- T A Nicklas
- Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, Houston, Texas 77030, USA
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Cullen KW, Baranowski T, Rittenberry L, Olvera N. Social-environmental influences on children's diets: results from focus groups with African-, Euro- and Mexican-American children and their parents. Health Educ Res 2000; 15:581-590. [PMID: 11184217 DOI: 10.1093/her/15.5.581] [Citation(s) in RCA: 102] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Children's fruit, juice and vegetable (FJV) and fat intakes do not meet recommended guidelines. Since personal factors account for only a small percentage of the variability in children's FJV consumption, social and environmental influences were explored via focus group discussions with Grade 4-6 African-, Euro- and Mexican-American students and parents. Questions included the effects of social influences, availability and accessibility on children's FJV and low-fat food choices. Few ethnic differences were noted. A variety of low-fat items and fresh FJV (not cut-up) were available at home; older children were expected to prepare their own. Eating out occurred at least twice a week; FJV were not usual restaurant choices. Students reported some modeling by parents (more mothers) and friends (usually at lunch). Negative peer responses for eating vegetables were reported. Parents were concerned with children eating too much junk food and not enough FJV, recognized the outside influences their children received about food, and reported several methods to encourage children to eat FJV. Recommendations for future interventions are proposed.
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Affiliation(s)
- K W Cullen
- Department of Pediatrics, Baylor College of Medicine, Houston, TX 77030, USA
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Abstract
OBJECTIVES The aim of this study was to evaluate the effect of three different chemical surface modifications on the bond strength of light-activated denture repair resin (Triad, Dentsply International) to a heat-cured resin (Lucitone, Dentsply International). METHODS Transverse flexure test specimens were made, with surface treatment of 1) Triad bonding agent, 2) unreacted Lucitone monomer, and 3) a 1:1 mixture of methylene chloride and monomer, using two different application times (2 and 4 min). For all except one group, 18 specimens were made. The controls were solid single composition bars, 18 for each material. The elastic modulus in transverse flexure was measured for each material. The statistical analysis employed the Weibull distribution. Fracture strength values were obtained in a three-point flexure test. RESULTS It was noted that many fractures occurred away from the interface and the center member of the test fixture. For those fractures, the observed fracture strength is a censored value of the fracture strength. Algorithms for the statistical treatment of censored data were used to get the maximum likelihood estimates of the fracture strength. A mechanical model showed that under three-point bending of a beam of two joined materials, fractures will occur in the part with the higher elastic modulus. This finding is indeed observed in the data. The 4 min monomer treatment showed the highest estimate of the bond strength (187.8 MPa). SIGNIFICANCE Censored data can be used to obtain fracture strength estimates, and the censoring indicates that the bond strength may exceed the strength of the bulk material.
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Affiliation(s)
- N Olvera
- Department of Continuing Education, University of Texas Dental Branch, Houston, USA
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