Short- and medium-term air pollution exposure, plasmatic protein levels and blood pressure in children

Exposure to air pollution influences children's health, however, the biological mechanisms underlying these effects are not completely elucidated. We investigated the association between short- and medium-term outdoor air pollution exposure with protein profiles and their link with blood pr...

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Detalhes bibliográficos
Autores: de Prado-Bert, Paula, Warembourg, Charline, Borràs, Eva, Sabidó Aguadé, Eduard, 1981-, Urquiza, José M., Maitre, Léa, Casas Sanahuja, Maribel, Nieuwenhuijsen, Mark J., de Castro, Montserrat, Basagaña Flores, Xavier, Vrijheid, Martine, Sunyer Deu, Jordi, Bustamante Pineda, Mariona
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2022
País:España
Recursos:Universitat Pompeu Fabra
Repositorio:Repositorio Digital de la UPF
OAI Identifier:oai:repositori.upf.edu:10230/53260
Acesso em linha:http://hdl.handle.net/10230/53260
http://dx.doi.org/10.1016/j.envres.2022.113109
Access Level:acceso abierto
Palavra-chave:Aire -- Contaminació
Pressió sanguínia
Infants
Proteïnes
Descrição
Resumo:Exposure to air pollution influences children's health, however, the biological mechanisms underlying these effects are not completely elucidated. We investigated the association between short- and medium-term outdoor air pollution exposure with protein profiles and their link with blood pressure in 1170 HELIX children aged 6-11 years. Different air pollutants (NO2, PM10, PM2.5, and PM2.5abs) were estimated based on residential and school addresses at three different windows of exposure (1-day, 1-week, and 1-year before clinical and molecular assessment). Thirty-six proteins, including adipokines, cytokines, or apolipoproteins, were measured in children's plasma using Luminex. Systolic and diastolic blood pressure (SBP and DBP) were measured following a standardized protocol. We performed an association study for each air pollutant at each location and time window and each outcome, adjusting for potential confounders. After correcting for multiple-testing, hepatocyte growth factor (HGF) and interleukin 8 (IL8) levels were positively associated with 1-week home exposure to some of the pollutants (NO2, PM10, or PM2.5). NO2 1-week home exposure was also related to higher SBP. The mediation study suggested that HGF could explain 19% of the short-term effect of NO2 on blood pressure, but other study designs are needed to prove the causal directionality between HGF and blood pressure.

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