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dc.contributor.authorGern, James E.en_US
dc.contributor.authorVisness, Cynthia M.en_US
dc.contributor.authorGergen, Peter J.en_US
dc.contributor.authorWood, Robert A.en_US
dc.contributor.authorBloomberg, Gordon R.en_US
dc.contributor.authorO'Connor, George T.en_US
dc.contributor.authorKattan, Meyeren_US
dc.contributor.authorSampson, Hugh A.en_US
dc.contributor.authorWitter, Frank R.en_US
dc.contributor.authorSandel, Megan T.en_US
dc.contributor.authorShreffler, Wayne G.en_US
dc.contributor.authorWright, Rosalind J.en_US
dc.contributor.authorArbes, Samuel J.en_US
dc.contributor.authorBusse, William W.en_US
dc.date.accessioned2012-01-09T20:54:50Z
dc.date.available2012-01-09T20:54:50Z
dc.date.copyright2009
dc.date.issued2009-5-8
dc.identifier.citationGern, James E, Cynthia M Visness, Peter J Gergen, Robert A Wood, Gordon R Bloomberg, George T O'Connor, Meyer Kattan, Hugh A Sampson, Frank R Witter, Megan T Sandel, Wayne G Shreffler, Rosalind J Wright, Samuel J Arbes, William W Busse. "The Urban Environment and Childhood Asthma (URECA) birth cohort study: design, methods, and study population" BMC Pulmonary Medicine 9:17. (2009)
dc.identifier.issn1471-2466
dc.identifier.urihttp://hdl.handle.net/2144/2908
dc.description.abstractBACKGROUND. The incidence and morbidity of wheezing illnesses and childhood asthma is especially high in poor urban areas. This paper describes the study design, methods, and population of the Urban Environment and Childhood Asthma (URECA) study, which was established to investigate the immunologic causes of asthma among inner-city children. METHODS AND RESULTS. URECA is an observational prospective study that enrolled pregnant women in central urban areas of Baltimore, Boston, New York City, and St. Louis and is following their offspring from birth through age 7 years. The birth cohort consists of 560 inner-city children who have at least one parent with an allergic disease or asthma, and all families live in areas in which at least 20% of the population has incomes below the poverty line. In addition, 49 inner-city children with no parental history of allergies or asthma were enrolled. The primary hypothesis is that specific urban exposures in early life promote a unique pattern of immune development (impaired antiviral and increased Th2 responses) that increases the risk of recurrent wheezing and allergic sensitization in early childhood, and of asthma by age 7 years. To track immune development, cytokine responses of blood mononuclear cells stimulated ex vivo are measured at birth and then annually. Environmental assessments include allergen and endotoxin levels in house dust, pre- and postnatal maternal stress, and indoor air nicotine and nitrogen dioxide. Nasal mucous samples are collected from the children during respiratory illnesses and analyzed for respiratory viruses. The complex interactions between environmental exposures and immune development will be assessed with respect to recurrent wheeze at age 3 years and asthma at age 7 years. CONCLUSION. The overall goal of the URECA study is to develop a better understanding of how specific urban exposures affect immune development to promote wheezing illnesses and asthma.en_US
dc.description.sponsorshipNational Institutes of Health National Institute of Allergy and Infectious Diseases (NO1-A11-25496, NO1-A1-25482); National Institutes of Health National Center for Research Resources (RR00052, M01RR00533, M01RR00071, SULIRR024992-02)en_US
dc.language.isoenen_US
dc.publisherBioMed Centralen_US
dc.rightsCopyright 2009 Gern et al; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.en_US
dc.rights.urihttp://creativecommons.org/licenses/by/2.0
dc.titleThe Urban Environment and Childhood Asthma (URECA) Birth Cohort Study: Design, Methods, and Study Populationen_US
dc.typearticleen_US
dc.identifier.doi10.1186/1471-2466-9-17
dc.identifier.pubmedid19426496
dc.identifier.pmcid2689166


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Copyright 2009 Gern et al; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Except where otherwise noted, this item's license is described as Copyright 2009 Gern et al; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.