ISIS AKEMI KATAYAMA RANGEL

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LIM/16 - Laboratório de Fisiopatologia Renal, Hospital das Clínicas, Faculdade de Medicina

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Revista / Livro: Toxicology Letters ×

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  • article 74 Citação(ões) na Scopus
    Inhalation of fine particulate matter during pregnancy increased IL-4 cytokine levels in the fetal portion of the placenta
    (2015) MELO, Juliana Oliveira de; SOTO, Sonia Fatima; KATAYAMA, Isis Akemi; WENCESLAU, Camilla Ferreira; PIRES, Amanda Gonalves; VERAS, Mariana Matera; FURUKAWA, Luzia N. S.; CASTRO, Isac de; SALDIVA, Paulo Hilario Nascimento; HEIMANN, Joel Claudio
    This study aimed to verify the development of placental and systemic inflammation in rats exposed to fine particulate matter before or during pregnancy. Wistar rats were exposed to filtered air ( control) or to a load of 600 mu g/m(3) of fine particles in the air. The gene expression of IL-1 beta, IL-4, IL-6, IL-10, INF-gamma, TNF-alpha and Toll-like receptor 4 in the placenta was evaluated. The serum and placental concentrations of IL-1 beta, IL-4, IL-6, IL-10, INF-gamma and TNF-alpha were measured. The total and differential blood leukocyte and blood platelet count was assessed. Compared to control animals, IL-4 content was elevated in the fetal portion of the placenta in rats exposed to air pollution before and during pregnancy. Increased IL-4 suggests that a placental inflammatory reaction may have occurred in response to exposure to fine particulate matter and that this cytokine was responsible, among possibly others factors, for resolution of the inflammatory reaction.