The Influence of Quercetin on Maternal Immunity, Oxidative Stress, and Inflammation in Mice with Exposure of Fine Particulate Matter during Gestation

Wei Liu, Minjia Zhang, Jinqiu Feng, Aiqin Fan, Yalin Zhou and Yajun Xu
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Wei Liu: Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100191, China
Minjia Zhang: Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100191, China
Jinqiu Feng: Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100191, China
Aiqin Fan: Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100191, China
Yalin Zhou: Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100191, China
Yajun Xu: Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100191, China

IJERPH, 2017, vol. 14, issue 6, 1-16

Abstract: The objective is to investigate the influence of PM 2.5 exposure on peripheral blood lymphocyte subsets in pregnant mice and the antagonism of quercetin on adverse effects induced by PM 2.5 exposure. Pregnant mice were randomly divided into control group, PM 2.5 model group and 3 quercetin intervention groups. Dams in all groups except the control group were exposed to PM 2.5 suspension by intratracheal instillation on gestational day (GD) 3, 6, 9, 12 and 15. Meanwhile, each dam was given 0.15% carboxymethylcellulose sodium (CMCS) (control group & PM 2.5 model group) and different doses of quercetin (quercetin intervention groups) by gavage once a day from GD0 to GD17. The percentage of lymphocyte subsets, Biomarkers of systemic inflammation injuries (IL-2, IL-6, IL-8 & TNF-?) and oxidative stress indicators (CAT, GSH & HO-1) in peripheral blood of the dams were analyzed. The number of T cells increased, accompanied by increased level of IL-2, IL-6, IL-8 and HO-1 due to PM 2.5 exposure. Less CD4+ and CD8+ T cells were counted in 100 mg/kg quercetin intervention group, compared with PM 2.5 model group. Quercetin may inhibit cytokine production, especially in IL-6 and IL-8 and may upgrade the level of HO-1. Our findings indicate that PM 2.5 could significantly influence the distribution of T-lymphocyte subsets, activate inflammatory reaction and elevate oxidative stress level in peripheral blood of pregnant mice. Certain dose of quercetin administration during pregnancy may protect the dams against the adverse effects through various ways.

Keywords: PM 2.5; pregnancy; quercetin; lymphocyte subset; inflammation; oxidative stress (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2017
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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