PMID- 35152352 OWN - NLM STAT- MEDLINE DCOM- 20220623 LR - 20220623 IS - 1614-7499 (Electronic) IS - 0944-1344 (Linking) VI - 29 IP - 30 DP - 2022 Jun TI - Effect of PM2.5 exposure on gestational hypertension, fetal size in preeclampsia-like rats. PG - 45808-45820 LID - 10.1007/s11356-021-18233-4 [doi] AB - Studies have shown intriguing associations between gestational PM(2.5) exposure and preeclampsia (PE), as well as fetal growth restriction (FGR). This study investigated the impact of PM(2.5) exposure on gestational hypertension and fetal outcome in a preeclampsia-like rat model. Pregnant Sprague Dawley rats were exposed to either filtered (FA) or PM(2.5)-contaminated air during the whole pregnancy period. A PE-like rat model was established by intraperitoneal injection of L-NAME (300 mg/kg) from gestational day (GD) 12 to until GD20. Systolic blood pressure (SBP), weight gain, pup weight and placental weight were measured. The percentages of rat Treg/Th17 cells and Th17-related cytokines were examined by flow cytometry. Gene expression profiles were analyzed by microarray, and the expression of differentially expressed genes was validated by qRT-PCR. The results showed that maternal PM(2.5) exposure had no effect on SBP but was associated with low birth weight (LBW) and a higher labyrinth/basal zone ratio. The percentages of splenic Th17 cells from the PM(2.5) group of PE-like rats were higher than those from the FA or PM(2.5) groups of healthy controls. A significantly decreased Treg/Th17 cell ratio was found in the PM(2.5) group of PE-like rats. The mRNA expression of Foxp3 was downregulated, while the mRNA expression of RORalpha and RORgammatau was upregulated after PM(2.5) exposure. Furthermore, we observed that both the mRNA and protein levels of TNF-a, CCL2, CCL3 and CCR1 increased in the PM(2.5) groups. Our study suggested that systemic inflammation may contribute to the development of FGR associated with PM(2.5) exposure throughout pregnancy. CI - (c) 2022. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature. FAU - Gao, Jie AU - Gao J AD - Department of Obstetrics and Gynecology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China. AD - Department of Obstetrics and Gynecology, Beijing Luhe Hospital, Capital Medical University, Beijing, China. FAU - Luo, Mei AU - Luo M AD - Central Laboratory, Beijing Luhe Hospital, Capital Medical University, Beijing, China. FAU - Zhao, Shuo AU - Zhao S AD - Department of Obstetrics and Gynecology, Beijing Luhe Hospital, Capital Medical University, Beijing, China. FAU - Wang, Hailing AU - Wang H AD - Department of Obstetrics and Gynecology, Beijing Luhe Hospital, Capital Medical University, Beijing, China. FAU - Li, Xuan AU - Li X AD - Department of Obstetrics and Gynecology, Beijing Luhe Hospital, Capital Medical University, Beijing, China. FAU - Xu, Pili AU - Xu P AD - Department of Obstetrics and Gynecology, Beijing Luhe Hospital, Capital Medical University, Beijing, China. FAU - Ma, Wei AU - Ma W AD - Department of Obstetrics and Gynecology, Beijing Luhe Hospital, Capital Medical University, Beijing, China. FAU - Liu, Chongdong AU - Liu C AD - Department of Obstetrics and Gynecology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China. liuchongdong@ccmu.edu.cn. LA - eng GR - KJ2019CX014-12/Science and Technology Commission of Tongzhou District Foundation/ GR - KJ2020CX006-01/Science and Technology Commission of Tongzhou District Foundation/ PT - Journal Article DEP - 20220212 PL - Germany TA - Environ Sci Pollut Res Int JT - Environmental science and pollution research international JID - 9441769 RN - 0 (Air Pollutants) RN - 0 (Particulate Matter) RN - 0 (RNA, Messenger) SB - IM MH - *Air Pollutants/analysis/toxicity MH - Animals MH - Female MH - Humans MH - *Hypertension, Pregnancy-Induced MH - Maternal Exposure MH - Particulate Matter/analysis/toxicity MH - Placenta/chemistry MH - *Pre-Eclampsia MH - Pregnancy MH - RNA, Messenger MH - Rats MH - Rats, Sprague-Dawley OTO - NOTNLM OT - Fine particulate matter OT - Low birth weight OT - Preeclampsia OT - Systemic inflammation EDAT- 2022/02/14 06:00 MHDA- 2022/06/24 06:00 CRDT- 2022/02/13 20:37 PHST- 2021/09/08 00:00 [received] PHST- 2021/12/16 00:00 [accepted] PHST- 2022/02/14 06:00 [pubmed] PHST- 2022/06/24 06:00 [medline] PHST- 2022/02/13 20:37 [entrez] AID - 10.1007/s11356-021-18233-4 [pii] AID - 10.1007/s11356-021-18233-4 [doi] PST - ppublish SO - Environ Sci Pollut Res Int. 2022 Jun;29(30):45808-45820. doi: 10.1007/s11356-021-18233-4. Epub 2022 Feb 12.