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Asthma AND "DNA methylation"

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https://www.readbyqxmd.com/read/28424066/short-term-exposure-to-pm2-5-and-vanadium-and-changes-in-asthma-gene-dna-methylation-and-lung-function-decrements-among-urban-children
#1
Kyung Hwa Jung, David Torrone, Stephanie Lovinsky-Desir, Matthew Perzanowski, Joshua Bautista, Jacqueline R Jezioro, Lori Hoepner, Jamie Ross, Frederica P Perera, Steven N Chillrud, Rachel L Miller
BACKGROUND: Both short and long-term exposure to traffic-related air pollutants have been associated with asthma and reduced lung function. We hypothesized that short-term indoor exposure to fine particulate matter <2.5 μm (PM2.5) and vanadium (V) would be associated with altered buccal cell DNA methylation of targeted asthma genes and decreased lung function among urban children in a nested subcohort of African American and Dominican children. METHODS: Six day integrated levels of air pollutants were measured from children's homes (age 9-14; n = 163), repeated 6 months later (n = 98)...
April 19, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28322586/the-neonatal-methylome-as-a-gatekeeper-in-the-trajectory-to-childhood-asthma
#2
Avery DeVries, Donata Vercelli
Asthma is a heterogeneous group of conditions that typically begin in early life and result in recurrent, reversible bronchial obstruction. The role played by epigenetic mechanisms in the pathogenesis of childhood asthma is understood only in part. Here we discuss asthma epigenetics within a developmental perspective based on our recent demonstration that the epigenetic trajectory to childhood asthma begins at birth. We next discuss how this trajectory may be affected by prenatal environmental exposures. Finally, we examine in vitro studies that model the impact of asthma-associated exposures on the epigenome...
March 21, 2017: Epigenomics
https://www.readbyqxmd.com/read/28261276/dietary-intake-is-associated-with-respiratory-health-outcomes-and-dna-methylation-in-children-with-asthma
#3
L Montrose, T J Ward, E O Semmens, Y H Cho, B Brown, C W Noonan
BACKGROUND: Asthma is an increasingly common chronic disease among children, and data point toward a complex mechanism involving genetic, environmental and epigenetic factors. Epigenetic modifications such as DNA hypo- or hyper-methylation have been shown to occur in response to environmental exposures including dietary nutrients. METHODS: Within the context of the asthma randomized trial of indoor wood smoke (ARTIS) study, we investigated relationships between diet, asthma health measures, and DNA methylation...
2017: Allergy, Asthma, and Clinical Immunology
https://www.readbyqxmd.com/read/28253869/reduced-prf1-enhancer-methylation-in-children-with-a-history-of-severe-rsv-bronchiolitis-in-infancy-an-association-study
#4
Magdeldin Elgizouli, Chad Logan, Ruth Grychtol, Dietrich Rothenbacher, Alexandra Nieters, Andrea Heinzmann
BACKGROUND: Acute lower respiratory tract infection is the commonest disease affecting children under five worldwide. Respiratory syncytial virus (RSV) is among the most common causative pathogens. Epidemiological data suggest an association between severe viral respiratory infections in infancy and increased incidence of childhood wheeze and asthma. DNA methylation is involved in immune cell differentiation and identity. It provides an avenue for environmental influences on the genome and therefore has potential as a marker for sustained effects of infectious insults...
March 3, 2017: BMC Pediatrics
https://www.readbyqxmd.com/read/28241063/role-of-dna-methylation-in-expression-control-of-the-ikzf3-gsdma-region-in-human-epithelial-cells
#5
Sanny Moussette, Abeer Al Tuwaijri, Hamid-Reza Kohan-Ghadr, Samar Elzein, Raquel Farias, Julie Bérubé, Bianca Ho, Catherine Laprise, Cynthia G Goodyer, Simon Rousseau, Anna K Naumova
Chromosomal region 17q12-q21 is associated with asthma and harbors regulatory polymorphisms that influence expression levels of all five protein-coding genes in the region: IKAROS family zinc finger 3 (Aiolos) (IKZF3), zona pellucida binding protein 2 (ZPBP2), ORMDL sphingolipid biosynthesis regulator 3 (ORMDL3), and gasdermins A and B (GSDMA, GSDMB). Furthermore, DNA methylation in this region has been implicated as a potential modifier of the genetic risk of asthma development. To further characterize the effect of DNA methylation, we examined the impact of treatment with DNA methyltransferase inhibitor 5-aza-2'-deoxycytidine (5-aza-dC) that causes DNA demethylation, on expression and promoter methylation of the five 17q12-q21 genes in the human airway epithelium cell line NuLi-1, embryonic kidney epithelium cell line 293T and human adenocarcinoma cell line MCF-7...
2017: PloS One
https://www.readbyqxmd.com/read/28183433/mechanisms-of-the-development-of-allergy-medall-introducing-novel-concepts-in-allergy-phenotypes
#6
REVIEW
Josep M Anto, Jean Bousquet, Mubeccel Akdis, Charles Auffray, Thomas Keil, Isabelle Momas, Dirkje S Postma, Rudolf Valenta, Magnus Wickman, Anne Cambon-Thomsen, Tari Haahtela, Bart N Lambrecht, Karin C Lodrup Carlsen, Gerard H Koppelman, Jordi Sunyer, Torsten Zuberbier, Isabelle Annesi-Maesano, Albert Arno, Carsten Bindslev-Jensen, Giuseppe De Carlo, Francesco Forastiere, Joachim Heinrich, Marek L Kowalski, Dieter Maier, Erik Melén, Henriette A Smit, Marie Standl, John Wright, Anna Asarnoj, Marta Benet, Natalia Ballardini, Judith Garcia-Aymerich, Ulrike Gehring, Stefano Guerra, Cynthia Hohmann, Inger Kull, Christian Lupinek, Mariona Pinart, Ingebjorg Skrindo, Marit Westman, Delphine Smagghe, Cezmi Akdis, Niklas Andersson, Claus Bachert, Stephane Ballereau, Ferran Ballester, Xavier Basagana, Anna Bedbrook, Anna Bergstrom, Andrea von Berg, Bert Brunekreef, Emilie Burte, Kai-Hakon Carlsen, Leda Chatzi, Jonathan M Coquet, Mirela Curin, Pascal Demoly, Esben Eller, Maria Pia Fantini, Leena von Hertzen, Vergard Hovland, Benedicte Jacquemin, Jocelyne Just, Theresa Keller, Renata Kiss, Manolis Kogevinas, Sibylle Koletzko, Susanne Lau, Irina Lehmann, Nicolas Lemonnier, Mika Mäkelä, Jordi Mestres, Peter Mowinckel, Rachel Nadif, Martijn C Nawijn, Johan Pellet, Isabelle Pin, Daniela Porta, Fanny Rancière, Emmanuelle Rial-Sebbag, Yvan Saeys, Martijn J Schuijs, Valerie Siroux, Christina G Tischer, Mathies Torrent, Raphaelle Varraso, Kalus Wenzel, Cheng-Jian Xu
Asthma, rhinitis, and eczema are complex diseases with multiple genetic and environmental factors interlinked through IgE-associated and non-IgE-associated mechanisms. Mechanisms of the Development of ALLergy (MeDALL; EU FP7-CP-IP; project no: 261357; 2010-2015) studied the complex links of allergic diseases at the clinical and mechanistic levels by linking epidemiologic, clinical, and mechanistic research, including in vivo and in vitro models. MeDALL integrated 14 European birth cohorts, including 44,010 participants and 160 cohort follow-ups between pregnancy and age 20 years...
February 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28137284/epigenetic-modifying-enzyme-expression-in-asthmatic-airway-epithelial-cells-and-fibroblasts
#7
Dorota Stefanowicz, Jari Ullah, Kevin Lee, Furquan Shaheen, Ekiomoado Olumese, Nick Fishbane, Hyun-Kyoung Koo, Teal S Hallstrand, Darryl A Knight, Tillie-Louise Hackett
BACKGROUND: Recognition of the airway epithelium as a central mediator in the pathogenesis of asthma has necessitated greater understanding of the aberrant cellular mechanisms of the epithelium in asthma. The architecture of chromatin is integral to the regulation of gene expression and is determined by modifications to the surrounding histones and DNA. The acetylation, methylation, phosphorylation, and ubiquitination of histone tail residues has the potential to greatly alter the accessibility of DNA to the cells transcriptional machinery...
January 31, 2017: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/28130259/prenatal-exposure-to-tobacco-smoke-sex-dependently-influences-methylation-and-mrna-levels-of-the-igf-axis-in-lungs-of-mouse-offspring
#8
Karolin F Meyer, Susanne Krauss-Etschmann, Wierd Kooistra, Marjan Reinders-Luinge, Wim Timens, Lester Kobzik, Torsten Plösch, Machteld N Hylkema
BACKGROUND: Prenatal smoke exposure is a risk factor for abnormal lung development and increased sex-dependent susceptibility for asthma and COPD. Birth cohort studies show genome wide DNA methylation changes in children from smoking mothers, but evidence for sex-dependent smoke-induced effects is limited. The insulin-like growth factor (IGF) system plays an important role in lung development. We hypothesized that prenatal exposure to smoke induces lasting changes in promoter methylation patterns of Igf1 and Igf1r, thus influencing transcriptional activity, and contributing to abnormal lung development...
January 27, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/28069425/an-epigenome-wide-association-study-of-total-serum-ige-in-hispanic-children
#9
Wei Chen, Ting Wang, Maria Pino-Yanes, Erick Forno, Liming Liang, Qi Yan, Donglei Hu, Daniel E Weeks, Andrea Baccarelli, Edna Acosta-Perez, Celeste Eng, Yueh-Ying Han, Nadia Boutaoui, Catherine Laprise, Gwyneth A Davies, Julian M Hopkin, Miriam F Moffatt, William O C M Cookson, Glorisa Canino, Esteban G Burchard, Juan C Celedón
BACKGROUND: Total IgE is a therapeutic target in patients with allergic diseases. DNA methylation in white blood cells (WBCs) was associated with total IgE levels in an epigenome-wide association study of white subjects. Whether DNA methylation of eosinophils explains these findings is insufficiently understood. METHODS: We tested for association between genome-wide DNA methylation in WBCs and total IgE levels in 2 studies of Hispanic children: the Puerto Rico Genetics of Asthma and Lifestyle Study (PR-GOAL; n = 306) and the Genes-environments and Admixture in Latino Americans (GALA II) study (n = 573)...
January 6, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28011059/epigenome-wide-analysis-links-smad3-methylation-at-birth-to-asthma-in-children-of-asthmatic-mothers
#10
Avery DeVries, Gabriela Wlasiuk, Susan J Miller, Anthony Bosco, Debra A Stern, I Carla Lohman, Janet Rothers, Anya C Jones, Jessie Nicodemus-Johnson, Monica M Vasquez, John A Curtin, Angela Simpson, Adnan Custovic, Daniel J Jackson, James E Gern, Robert F Lemanske, Stefano Guerra, Anne L Wright, Carole Ober, Marilyn Halonen, Donata Vercelli
BACKGROUND: The timing and mechanisms of asthma inception remain imprecisely defined. Although epigenetic mechanisms likely contribute to asthma pathogenesis, little is known about their role in asthma inception. OBJECTIVE: We sought to assess whether the trajectory to asthma begins already at birth and whether epigenetic mechanisms, specifically DNA methylation, contribute to asthma inception. METHODS: We used the Methylated CpG Island Recovery Assay chip to survey DNA methylation in cord blood mononuclear cells from 36 children (18 nonasthmatic and 18 asthmatic subjects by age 9 years) from the Infant Immune Study (IIS), an unselected birth cohort closely monitored for asthma for a decade...
December 21, 2016: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/27943047/epigenetic-changes-during-food-specific-immunotherapy
#11
REVIEW
Bryan J Bunning, Rosemarie H DeKruyff, Kari C Nadeau
PURPOSE OF REVIEW: The prevalence and severity of IgE-mediated food allergy has increased dramatically over the last 15 years and is becoming a global health problem. Multiple lines of evidence suggest that epigenetic modifications of the genome resulting from gene-environment interactions have a key role in the increased prevalence of atopic disease. In this review, we describe the recent evidence suggesting how epigenetic changes mediate susceptibility to food allergies, and discuss how immunotherapy (IT) may reverse these effects...
November 2016: Current Allergy and Asthma Reports
https://www.readbyqxmd.com/read/27942592/dna-methylation-in-lung-cells-is-associated-with-asthma-endotypes-and-genetic-risk
#12
Jessie Nicodemus-Johnson, Rachel A Myers, Noburu J Sakabe, Debora R Sobreira, Douglas K Hogarth, Edward T Naureckas, Anne I Sperling, Julian Solway, Steven R White, Marcelo A Nobrega, Dan L Nicolae, Yoav Gilad, Carole Ober
The epigenome provides a substrate through which environmental exposures can exert their effects on gene expression and disease risk, but the relative importance of epigenetic variation on human disease onset and progression is poorly characterized. Asthma is a heterogeneous disease of the airways, for which both onset and clinical course result from interactions between host genotype and environmental exposures, yet little is known about the molecular mechanisms for these interactions. We assessed genome-wide DNA methylation using the Infinium Human Methylation 450K Bead Chip and characterized the transcriptome by RNA sequencing in primary airway epithelial cells from 74 asthmatic and 41 nonasthmatic adults...
December 8, 2016: JCI Insight
https://www.readbyqxmd.com/read/27929694/dna-methylation-levels-associate-with-race-and-childhood-asthma-severity
#13
Marcia A Chan, Christina E Ciaccio, Nicole M Gigliotti, Mo Rezaiekhaligh, Jacob A Siedlik, Kevin Kennedy, Charles S Barnes
OBJECTIVE: Asthma is a common chronic childhood disease worldwide. Socioeconomic status, genetic predisposition and environmental factors contribute to its incidence and severity. A disproportionate number of children with asthma are economically disadvantaged and live in substandard housing with potential indoor environmental exposures such as cockroaches, dust mites, rodents and molds. These exposures may manifest through epigenetic mechanisms that can lead to changes in relevant gene expression...
December 8, 2016: Journal of Asthma: Official Journal of the Association for the Care of Asthma
https://www.readbyqxmd.com/read/27919711/epigenetic-dysfunctional-diseases-and-therapy-for-infection-and-inflammation
#14
REVIEW
Saheli Samanta, Sheeja Rajasingh, Thuy Cao, Buddhadeb Dawn, Johnson Rajasingh
Even though the discovery of the term 'epigenetics' was in the 1940s, it has recently become one of the most promising and expanding fields to unravel the gene expression pattern in several diseases. The most well studied example is cancer, but other diseases like metabolic disorders, autism, or inflammation-associated diseases such as lung injury, autoimmune disease, asthma, and type-2 diabetes display aberrant gene expression and epigenetic regulation during their occurrence. The change in the epigenetic pattern of a gene may also alter gene function because of a change in the DNA status...
February 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/27866770/tetanus-vaccination-is-associated-with-differential-dna-methylation-reduces-the-risk-of-asthma-in-adolescence
#15
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
https://www.readbyqxmd.com/read/27768585/future-of-environmental-research-in-the-age-of-epigenomics-and-exposomics
#16
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...
March 1, 2017: Reviews on Environmental Health
https://www.readbyqxmd.com/read/27745942/the-nasal-methylome-and-childhood-atopic-asthma
#17
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
https://www.readbyqxmd.com/read/27743978/influence-of-maternal-obesity-on-the-long-term-health-of-offspring
#18
REVIEW
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...
January 2017: Lancet Diabetes & Endocrinology
https://www.readbyqxmd.com/read/27712769/genetic-and-epigenetic-components-of-aspirin-exacerbated-respiratory-disease
#19
REVIEW
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
https://www.readbyqxmd.com/read/27662207/recent-developments-in-epigenetics-of-pediatric-asthma
#20
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
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