PMID- 35634661 OWN - NLM STAT- MEDLINE DCOM- 20220602 LR - 20220602 IS - 1000-6834 (Print) IS - 1000-6834 (Linking) VI - 38 IP - 1 DP - 2022 Jan TI - [Effects of early life PM(2.5) exposure on prefrontal cortex of offspring male rats]. PG - 1-5 LID - 10.12047/j.cjap.6222.2022.001 [doi] AB - Objective: To investigate the effects of PM(2.5) exposure at different stages of early life on the prefrontal cortex of offspring rats. Methods: Twelve pregnant SD rats were randomly divided into four groups: Control group (CG), Maternal pregnancy exposure group (MG), Early postnatal exposure group (EP) and Perinatal period exposure group (PP), 3 rats in each group. The pregnant and offspring rats were exposed to clean air or 8-fold concentrated PM(2.5). MG was exposed from gestational day (GD) 1 to GD21. EP was exposed from postnatal day (PND) 1 to PND21, and PP was exposed from GD1 to PND21. After exposure, the prefrontal cortex of 6 offspring rats in each group was analyzed. HE staining was used to observe the pathological damage in the prefrontal cortex. ELISA was employed to detect neuroinflammatory factors, and HPLC/MSC was applied to determine neurotransmitter content. Western blot and colorimetry were applied for detecting astrocyte markers and oxidative stress markers, respectively. Results: Compared with MG and CG, the pathological changes of prefrontal cortex in PP and EP were more obvious. Compared with MG and CG, the neuroinflammatory factors (IL-1, IL-6, TNF-alpha) in PP and EP were increased significantly (P<0.01), the level of MT were decreased significantly (P<0.05), and the level of oxytocin (OT) showed a downward trend; the level of neurotransmitter ACh was also increased significantly (P<0.01). Compared with MG and CG, the GFAP level of PP and EP showed an upward trend, the level of oxidative stress index SOD in PP and EP was decreased significantly (P<0.01), and the level of ROS was increased significantly (P<0.01). Compared with the offspring rats of CG and MG, the CAT level of PP was decreased significantly (P<0.01, P<0.05). Compared with the offspring rats of CG, the CAT level of EP was decreased significantly (P<0.05). There was no significant difference in IL-1, IL-6, TNF-alpha, MT, OT, ACh, GFAP, SOD, ROS and CAT levels between PP and EP, or MG and CG. Conclusion: PM(2.5) exposure in early life has adverse effects on the prefrontal cortex of offspring male rats, and early birth exposure may be more sensitive. FAU - Liang, Xiao-Tian AU - Liang XT AD - School of Public Health and Management, Binzhou Medical College, Yantai 264000. AD - Institute of Environmental Medicine and Occupational Medicine, Academy of Military Medicine, Academy of Military Sciences, Tianjin 300050, China. FAU - Han, Chun-Lei AU - Han CL AD - School of Public Health and Management, Binzhou Medical College, Yantai 264000. FAU - Lin, Ben-Cheng AU - Lin BC AD - Institute of Environmental Medicine and Occupational Medicine, Academy of Military Medicine, Academy of Military Sciences, Tianjin 300050, China. FAU - Shi, Yue AU - Shi Y AD - Institute of Environmental Medicine and Occupational Medicine, Academy of Military Medicine, Academy of Military Sciences, Tianjin 300050, China. FAU - Xie, Xiao-Qian AU - Xie XQ AD - School of Public Health and Management, Binzhou Medical College, Yantai 264000. AD - Institute of Environmental Medicine and Occupational Medicine, Academy of Military Medicine, Academy of Military Sciences, Tianjin 300050, China. FAU - Li, Kang AU - Li K AD - Institute of Environmental Medicine and Occupational Medicine, Academy of Military Medicine, Academy of Military Sciences, Tianjin 300050, China. FAU - Xi, Zhu-Ge AU - Xi ZG AD - School of Public Health and Management, Binzhou Medical College, Yantai 264000. AD - Institute of Environmental Medicine and Occupational Medicine, Academy of Military Medicine, Academy of Military Sciences, Tianjin 300050, China. LA - chi PT - Journal Article PL - China TA - Zhongguo Ying Yong Sheng Li Xue Za Zhi JT - Zhongguo ying yong sheng li xue za zhi = Zhongguo yingyong shenglixue zazhi = Chinese journal of applied physiology JID - 9426407 RN - 0 (Interleukin-1) RN - 0 (Interleukin-6) RN - 0 (Neurotransmitter Agents) RN - 0 (Particulate Matter) RN - 0 (Reactive Oxygen Species) RN - 0 (Tumor Necrosis Factor-alpha) RN - EC 1.15.1.1 (Superoxide Dismutase) SB - IM MH - Animals MH - Female MH - Interleukin-1/pharmacology MH - *Interleukin-6 MH - Male MH - Neurotransmitter Agents MH - Particulate Matter/toxicity MH - Prefrontal Cortex MH - Pregnancy MH - Rats MH - Rats, Sprague-Dawley MH - Reactive Oxygen Species MH - Superoxide Dismutase MH - *Tumor Necrosis Factor-alpha/pharmacology OTO - NOTNLM OT - PM2.5 OT - neurodevelopment OT - prefrontal cortex OT - sensitive period EDAT- 2022/06/01 06:00 MHDA- 2022/06/03 06:00 CRDT- 2022/05/31 10:04 PHST- 2022/05/31 10:04 [entrez] PHST- 2022/06/01 06:00 [pubmed] PHST- 2022/06/03 06:00 [medline] AID - 10.12047/j.cjap.6222.2022.001 [doi] PST - ppublish SO - Zhongguo Ying Yong Sheng Li Xue Za Zhi. 2022 Jan;38(1):1-5. doi: 10.12047/j.cjap.6222.2022.001.