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Efeito da poluição atmosférica urbana da cidade de São Paulo nas células sangüíneas e no sistema cardiopulmonar: estudo morfo-funcional em camundongos in vivo / Effect of urbain air pollution of Sao Paulo city in the blood and cardiopulmonary system: a morpho-functional study in mice in vivo
São Paulo; s.n; 2009. [93] p. ilus, tab, graf.
Thesis in Portuguese | LILACS | ID: lil-587001
RESUMO

Objetivo:

checar se poluentes do ar urbano de São Paulo induzem alterações sangüíneas e cardiopulmonares. MM camundongos Balb/c foram expostos por 7, 14, 21, 30 e 45 dias em 3 câmaras Limpa (controle), Intermediária (seletiva ao PM) e Suja (ar externo). Após exposição, os animais foram ventilados (FlexiVent) e coletados dados de mecânica pulmonar, sangue, coração e pulmão. Foram registrados PM, CO, SO2 e NO2 diários.

Resultados:

aos 21 e 45 dias coincidentes com picos de poluição houve aumento da resistência de via aérea (45d p=0,012), leucocitose (21d p < 0,001 e 45d p=0,039) e vasoconstricção pulmonar (21d p=0,034) nos animais da Câmara Suja, sem alteração de coronárias. Nenhum poluente excedeu limites de qualidade de ar.
ABSTRACT

Objective:

verify if air pollution of São Paulo city induces alterations in blood and cardiopulmonary systems. MM Balb/c mice were exposed during 7, 14, 21, 30 and 45 days to 3 chambers Clean (control), Intermediate (PM only) and Dirty (external air). After exposure, animals were ventilated (FlexiVent) and collected lung mechanics data and blood, heart and lung. PM, CO, SO2 e NO2 were measured daily.

Results:

on day 21 and 45, coincidently to peak of pollutions, there was proximal airway resistance increase (45d p=0.012), leukocytosis (21d p < 0.001 and 45d p=0.039) and vasoconstriction of peribronchiolar arterioles (21d p=0.034) in animals of Dirty Chamber with no alterations of coronaries. Neither pollutants exceeded the standard limits.
Subject(s)

Full text: Available Index: LILACS (Americas) Main subject: Endothelium, Vascular / Collagen / Oxidative Stress / Air Pollution / Usage Remodeling / Particulate Matter / Inflammation / Lung / Nitric Oxide Limits: Animals Language: Portuguese Year: 2009 Type: Thesis

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Full text: Available Index: LILACS (Americas) Main subject: Endothelium, Vascular / Collagen / Oxidative Stress / Air Pollution / Usage Remodeling / Particulate Matter / Inflammation / Lung / Nitric Oxide Limits: Animals Language: Portuguese Year: 2009 Type: Thesis