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Asthma AND "DNA methylation"

Vimala Devi Janjanam, Nandini Mukherjee, Gabrielle A Lockett, Faisal I Rezwan, Ramesh Kurukulaaratchy, Frances Mitchell, Hongmei Zhang, Hasan Arshad, John W Holloway, Wilfried Karmaus
BACKGROUND: Vaccinations have been suggested to be associated with increased risk of allergic diseases. Tetanus vaccination is one of the most frequently administered vaccines as a part of wound management and was also found to be associated with increased serum IgE levels. We hypothesized that the vaccination modifies the risk of allergic diseases through epigenetic changes such as DNA methylation. METHOD: Data on tetanus vaccination between 10 and 18years of age was collected from a birth cohort established on the Isle of Wight UK in 1989...
December 12, 2016: Vaccine
Nina Holland
Environmental research and public health in the 21st century face serious challenges such as increased air pollution and global warming, widespread use of potentially harmful chemicals including pesticides, plasticizers, and other endocrine disruptors, and radical changes in nutrition and lifestyle typical of modern societies. In particular, exposure to environmental and occupational toxicants may contribute to the occurrence of adverse birth outcomes, neurodevelopmental deficits, and increased risk of cancer and other multifactorial diseases such as diabetes and asthma...
October 21, 2016: Reviews on Environmental Health
Ivana V Yang, Brent S Pedersen, Andrew H Liu, George T O'Connor, Dinesh Pillai, Meyer Kattan, Rana Tawil Misiak, Rebecca Gruchalla, Stanley J Szefler, Gurjit K Khurana Hershey, Carolyn Kercsmar, Adam Richards, Allen D Stevens, Christena A Kolakowski, Melanie Makhija, Christine A Sorkness, Rebecca Z Krouse, Cynthia Visness, Elizabeth J Davidson, Corinne E Hennessy, Richard J Martin, Alkis Togias, William W Busse, David A Schwartz
BACKGROUND: Given the strong environmental influence on both epigenetic marks and allergic asthma in children, the epigenetic alterations in respiratory epithelia might provide insight into allergic asthma. OBJECTIVE: We sought to identify DNA methylation and gene expression changes associated with childhood allergic persistent asthma. METHODS: We compared genomic DNA methylation patterns and gene expression in African American children with persistent atopic asthma (n = 36) versus healthy control subjects (n = 36)...
October 13, 2016: Journal of Allergy and Clinical Immunology
Keith M Godfrey, Rebecca M Reynolds, Susan L Prescott, Moffat Nyirenda, Vincent W V Jaddoe, Johan G Eriksson, Birit F P Broekman
In addition to immediate implications for pregnancy complications, increasing evidence implicates maternal obesity as a major determinant of offspring health during childhood and later adult life. Observational studies provide evidence for effects of maternal obesity on her offspring's risks of obesity, coronary heart disease, stroke, type 2 diabetes, and asthma. Maternal obesity could also lead to poorer cognitive performance and increased risk of neurodevelopmental disorders, including cerebral palsy. Preliminary evidence suggests potential implications for immune and infectious-disease-related outcomes...
October 10, 2016: Lancet Diabetes & Endocrinology
Amber Dahlin, Scott T Weiss
Aspirin-exacerbated respiratory disease (AERD) severity and its clinical phenotypes are characterized by genetic variation within pathways for arachidonic acid metabolism, inflammation, and immune responses. Epigenetic effects, including DNA methylation and histone protein modification, contribute to regulation of many genes that contribute to inflammatory states in AERD. The development of noninvasive, predictive clinical tests using data from genetic, epigenetic, pharmacogenetic, and biomarker studies will improve precision medicine efforts for AERD and asthma treatment...
November 2016: Immunology and Allergy Clinics of North America
Hani Harb, Bilal Alashkar Alhamwe, Holger Garn, Harald Renz, Daniel P Potaczek
PURPOSE OF REVIEW: The goal of this review was to systematically analyze recent studies updating our knowledge on the role of epigenetic mechanisms in childhood asthma. RECENT FINDINGS: A systematic literature search was conducted that identified 23 fresh articles published within the last 5 years reporting the results of human studies on the relationships between epigenetic modifications and childhood asthma or its/related phenotypes. In almost all these studies, meaningful associations between levels of epigenetic marks (DNA methylation and/or histone modifications) and pediatric asthma or its/related phenotypes have been observed...
December 2016: Current Opinion in Pediatrics
Fatemeh Moheimani, Alan C-Y Hsu, Andrew T Reid, Teresa Williams, Anthony Kicic, Stephen M Stick, Philip M Hansbro, Peter A B Wark, Darryl A Knight
Asthma is a global health problem with increasing prevalence. The airway epithelium is the initial barrier against inhaled noxious agents or aeroallergens. In asthma, the airway epithelium suffers from structural and functional abnormalities and as such, is more susceptible to normally innocuous environmental stimuli. The epithelial structural and functional impairments are now recognised as a significant contributing factor to asthma pathogenesis. Both genetic and environmental risk factors play important roles in the development of asthma with an increasing number of genes associated with asthma susceptibility being expressed in airway epithelium...
2016: Respiratory Research
Jarrett D Morrow, Michael H Cho, Craig P Hersh, Victor Pinto-Plata, Bartolome Celli, Nathaniel Marchetti, Gerard Criner, Raphael Bueno, George Washko, Kimberly Glass, Augustine M K Choi, John Quackenbush, Edwin K Silverman, Dawn L DeMeo
Chronic obstructive pulmonary disease (COPD) is a smoking-related disease characterized by genetic and phenotypic heterogeneity. Although association studies have identified multiple genomic regions with replicated associations to COPD, genetic variation only partially explains the susceptibility to lung disease, and suggests the relevance of epigenetic investigations. We performed genome-wide DNA methylation profiling in homogenized lung tissue samples from 46 control subjects with normal lung function and 114 subjects with COPD, all former smokers...
August 26, 2016: Epigenetics: Official Journal of the DNA Methylation Society
Kyu Ha Lee, Mahlet G Tadesse, Andrea A Baccarelli, Joel Schwartz, Brent A Coull
The analysis of multiple outcomes is becoming increasingly common in modern biomedical studies. It is well-known that joint statistical models for multiple outcomes are more flexible and more powerful than fitting a separate model for each outcome; they yield more powerful tests of exposure or treatment effects by taking into account the dependence among outcomes and pooling evidence across outcomes. It is, however, unlikely that all outcomes are related to the same subset of covariates. Therefore, there is interest in identifying exposures or treatments associated with particular outcomes, which we term outcome-specific variable selection...
July 5, 2016: Biometrics
Saskia Trump, Matthias Bieg, Zuguang Gu, Loreen Thürmann, Tobias Bauer, Mario Bauer, Naveed Ishaque, Stefan Röder, Lei Gu, Gunda Herberth, Christian Lawerenz, Michael Borte, Matthias Schlesner, Christoph Plass, Nicolle Diessl, Markus Eszlinger, Oliver Mücke, Horst-Dietrich Elvers, Dirk K Wissenbach, Martin von Bergen, Carl Herrmann, Dieter Weichenhan, Rosalind J Wright, Irina Lehmann, Roland Eils
Psychological stress during pregnancy increases the risk of childhood wheeze and asthma. However, the transmitting mechanisms remain largely unknown. Since epigenetic alterations have emerged as a link between perturbations in the prenatal environment and an increased disease risk we used whole genome bisulfite sequencing (WGBS) to analyze changes in DNA methylation in mothers and their children related to prenatal psychosocial stress and assessed its role in the development of wheeze in the child. We evaluated genomic regions altered in their methylation level due to maternal stress based of WGBS data of 10 mother-child-pairs...
2016: Scientific Reports
Nandini Mukherjee, Gabrielle A Lockett, Simon K Merid, Erik Melén, Göran Pershagen, John W Holloway, Syed Hasan Arshad, Susan Ewart, Hongmei Zhang, Wilfried Karmaus
The leptin gene (LEP) plays a regulatory role in satiety, inflammation, and allergy. Prior findings linking leptin to asthma motivated us to investigate whether DNA methylation (DNA-M) of CpG (cytosine-phosphate-guanine) sites in concert with single nucleotide polymorphisms (SNPs) of LEP can explain the risk of asthma and lung function. Methylation of CpG sites was assessed using the Illumina Infinium Human Methylation 450 beadchip in blood samples collected from 10- and 18-year-old boys and girls from the Isle of Wight (IOW) birth cohort (UK)...
2016: International Journal of Molecular Epidemiology and Genetics
Bonnie R Joubert, Janine F Felix, Paul Yousefi, Kelly M Bakulski, Allan C Just, Carrie Breton, Sarah E Reese, Christina A Markunas, Rebecca C Richmond, Cheng-Jian Xu, Leanne K Küpers, Sam S Oh, Cathrine Hoyo, Olena Gruzieva, Cilla Söderhäll, Lucas A Salas, Nour Baïz, Hongmei Zhang, Johanna Lepeule, Carlos Ruiz, Symen Ligthart, Tianyuan Wang, Jack A Taylor, Liesbeth Duijts, Gemma C Sharp, Soesma A Jankipersadsing, Roy M Nilsen, Ahmad Vaez, M Daniele Fallin, Donglei Hu, Augusto A Litonjua, Bernard F Fuemmeler, Karen Huen, Juha Kere, Inger Kull, Monica Cheng Munthe-Kaas, Ulrike Gehring, Mariona Bustamante, Marie José Saurel-Coubizolles, Bilal M Quraishi, Jie Ren, Jörg Tost, Juan R Gonzalez, Marjolein J Peters, Siri E Håberg, Zongli Xu, Joyce B van Meurs, Tom R Gaunt, Marjan Kerkhof, Eva Corpeleijn, Andrew P Feinberg, Celeste Eng, Andrea A Baccarelli, Sara E Benjamin Neelon, Asa Bradman, Simon Kebede Merid, Anna Bergström, Zdenko Herceg, Hector Hernandez-Vargas, Bert Brunekreef, Mariona Pinart, Barbara Heude, Susan Ewart, Jin Yao, Nathanaël Lemonnier, Oscar H Franco, Michael C Wu, Albert Hofman, Wendy McArdle, Pieter Van der Vlies, Fahimeh Falahi, Matthew W Gillman, Lisa F Barcellos, Ashish Kumar, Magnus Wickman, Stefano Guerra, Marie-Aline Charles, John Holloway, Charles Auffray, Henning W Tiemeier, George Davey Smith, Dirkje Postma, Marie-France Hivert, Brenda Eskenazi, Martine Vrijheid, Hasan Arshad, Josep M Antó, Abbas Dehghan, Wilfried Karmaus, Isabella Annesi-Maesano, Jordi Sunyer, Akram Ghantous, Göran Pershagen, Nina Holland, Susan K Murphy, Dawn L DeMeo, Esteban G Burchard, Christine Ladd-Acosta, Harold Snieder, Wenche Nystad, Gerard H Koppelman, Caroline L Relton, Vincent W V Jaddoe, Allen Wilcox, Erik Melén, Stephanie J London
Epigenetic modifications, including DNA methylation, represent a potential mechanism for environmental impacts on human disease. Maternal smoking in pregnancy remains an important public health problem that impacts child health in a myriad of ways and has potential lifelong consequences. The mechanisms are largely unknown, but epigenetics most likely plays a role. We formed the Pregnancy And Childhood Epigenetics (PACE) consortium and meta-analyzed, across 13 cohorts (n = 6,685), the association between maternal smoking in pregnancy and newborn blood DNA methylation at over 450,000 CpG sites (CpGs) by using the Illumina 450K BeadChip...
April 7, 2016: American Journal of Human Genetics
Chloé Sarnowski, Catherine Laprise, Giovanni Malerba, Miriam F Moffatt, Marie-Hélène Dizier, Andréanne Morin, Quentin B Vincent, Klaus Rohde, Jorge Esparza-Gordillo, Patricia Margaritte-Jeannin, Liming Liang, Young-Ae Lee, Jean Bousquet, Valérie Siroux, Pier Franco Pignatti, William O Cookson, Mark Lathrop, Tomi Pastinen, Florence Demenais, Emmanuelle Bouzigon
BACKGROUND: Asthma and allergic rhinitis (AR) are common allergic comorbidities with a strong genetic component in which epigenetic mechanisms might be involved. OBJECTIVE: We aimed to identify novel risk loci for asthma and AR while accounting for parent-of-origin effect. METHODS: We performed a series of genetic analyses, taking into account the parent-of-origin effect in families ascertained through asthma: (1) genome-wide linkage scan of asthma and AR in 615 European families, (2) association analysis with 1233 single nucleotide polymorphisms (SNPs) covering the significant linkage region in 162 French Epidemiological Study on the Genetics and Environment of Asthma families with replication in 154 Canadian Saguenay-Lac-Saint-Jean asthma study families, and (3) association analysis of disease and significant SNPs with DNA methylation (DNAm) at CpG sites in 40 Saguenay-Lac-Saint-Jean asthma study families...
September 2016: Journal of Allergy and Clinical Immunology
Ivana V Yang, Brent S Pedersen, Andrew H Liu, George T O'Connor, Stephen J Teach, Meyer Kattan, Rana T Misiak, Rebecca Gruchalla, Suzanne F Steinbach, Stanley J Szefler, Michelle A Gill, Agustin Calatroni, Gloria David, Corinne E Hennessy, Elizabeth J Davidson, Peter Gergen, Alkis Togias, William W Busse, David A Schwartz
No abstract text is available yet for this article.
March 2016: Annals of the American Thoracic Society
Avery DeVries, Donata Vercelli
Asthma and allergic diseases are among the most prevalent chronic noncommunicable diseases of childhood, but the underlying pathogenetic mechanisms are poorly understood. Because epigenetic mechanisms link gene regulation to environmental cues and developmental trajectories, their contribution to asthma and allergy pathogenesis is under active investigation. DNA methylation signatures associated with concurrent disease and with the development of asthma during childhood asthma have been identified, but their significance is not easily interpretable...
March 2016: Annals of the American Thoracic Society
Michele Columbo, Albert S Rohr
BACKGROUND: Asthma in the elderly is poorly understood as very few studies have included these patients. DNA methylation can affect the expression of asthma susceptibility genes. Methyl groups can be produced through a choline dependent pathway. Asthmatics have decreased serum choline. We studied the effect of choline supplementation in elderly asthmatics and associations between different parameters at baseline. METHODS: This is a double-blind, placebo-controlled, cross-over study...
2016: Allergy, Asthma, and Clinical Immunology
G A Lockett, N Soto-Ramírez, M A Ray, T M Everson, C-J Xu, V K Patil, W Terry, A Kaushal, F I Rezwan, S L Ewart, U Gehring, D S Postma, G H Koppelman, S H Arshad, H Zhang, W Karmaus, J W Holloway
BACKGROUND: Season of birth influences allergy risk; however, the biological mechanisms underlying this observation are unclear. The environment affects DNA methylation, with potentially long-lasting effects on gene expression and disease. This study examined whether DNA methylation could underlie the association between season of birth and allergy. METHODS: In a subset of 18-year-old participants from the Isle of Wight (IoW) birth cohort (n = 367), the risks of birth season on allergic outcomes were estimated...
September 2016: Allergy
Victoria L Chapman, Rémi Terranova, Jonathan G Moggs, Ian Kimber, Rebecca J Dearman
Epigenetic regulation of gene expression plays a pivotal role in the orchestration of immune responses. Chemical allergens form two categories: skin sensitizing chemicals associated with allergic contact dermatitis, and chemicals that cause sensitization of the respiratory tract and occupational asthma. In mice these are characterized by different T helper (Th) cell responses. Changes in DNA methylation in particular have been implicated in the in vivo responses to chemical allergy. As such it was hypothesised that differentially methylated regions (DMR) may provide candidates biomarkers of chemical allergy To examine this, mice were exposed to 2,4-dinitrochlorobenzene (DNCB; a contact allergen) or trimellitic anhydride (TMA; a respiratory allergen)...
January 18, 2016: Toxicology
Therese M Murphy, Chloe C Y Wong, Louise Arseneault, Joe Burrage, Ruby Macdonald, Eilis Hannon, Helen L Fisher, Antony Ambler, Terrie E Moffitt, Avshalom Caspi, Jonathan Mill
BACKGROUND: Asthma is the most common chronic inflammatory disorder in children. The aetiology of asthma pathology is complex and highly heterogeneous, involving the interplay between genetic and environmental risk factors that is hypothesized to involve epigenetic processes. Our aim was to explore whether methylomic variation in early childhood is associated with discordance for asthma symptoms within monozygotic (MZ) twin pairs recruited from the Environmental Risk (E-Risk) longitudinal twin study...
2015: Clinical Epigenetics
Hari K Somineni, Xue Zhang, Jocelyn M Biagini Myers, Melinda Butsch Kovacic, Ashley Ulm, Noelle Jurcak, Patrick H Ryan, Gurjit K Khurana Hershey, Hong Ji
BACKGROUND: Asthma is a complex disorder influenced by genetics and the environment. Recent findings have linked abnormal DNA methylation in T cells with asthma; however, the potential dysregulation of methylation in airway epithelial cells is unknown. Studies of mouse models of asthma have observed greater levels of 5-hydroxymethylcytosine (5-hmC) and ten-eleven translocation 1 (TET1) expression in lungs. TET proteins are known to catalyze methylation through modification of 5-methylcytosine to 5-hmC...
March 2016: Journal of Allergy and Clinical Immunology
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