PMID- 32871147 OWN - NLM STAT- MEDLINE DCOM- 20210111 LR - 20210111 IS - 1096-0953 (Electronic) IS - 0013-9351 (Linking) VI - 191 DP - 2020 Dec TI - Association between prenatal exposure to perfluoroalkyl substances and respiratory tract infections in preschool children. PG - 110156 LID - S0013-9351(20)31053-7 [pii] LID - 10.1016/j.envres.2020.110156 [doi] AB - BACKGROUND: Prenatal exposure to perfluoroalkyl substances (PFAS) is considered to affect adversely the immune function. However, the effect of prenatal PFAS exposure on respiratory tract infections (RTIs) in children is unclear. Thus, we evaluated whether cord blood PFAS levels were associated with RTI in the first 5 years of life. METHODS: The Shanghai Prenatal Cohort is an on-going birth cohort, which included all the mothers during pregnancy. Children were followed by paediatricians once a year after birth. The levels of 10 PFAS in cord blood were tested using liquid chromatography-mass spectrometry. RTIs were diagnosed based on face-to-face interviews with the parents and review of medical records. Immunoglobulin G (IgG) and immunoglobulin E (IgE) levels, as biomarkers of humoral immunity, were assessed using enzyme-linked immunosorbent assay at age 5 years. Multivariable logistic and linear regression models were applied to study the association between prenatal PFAS exposure and RTIs. RESULTS: A total of 743 children completed the follow-up, 344 of them had detail information of cord blood PFAS, IgG, and IgE concentrations. Eight PFAS were detected in more than 90% of the cord blood samples, except for perfluoroheptanoic acid (PFHpA) and perfluorooctane sulfonamide (FOSA). During the 5-year follow-up period, the frequency of RTIs increased with age, reaching a peak at age 4. Moreover, 20.6% of the children were diagnosed with recurrent RTIs. Children with recurrent RTIs had higher prenatal perfluorobutane sulfonic acid (PFBS) concentration. Higher prenatal PFBS concentration was positively associated with total RTI frequency (beta = 6.05, 95% CI [0.84, 11.26]) in first 5 years of life and negatively associated with IgG level (beta = -0.82, 95% CI [-1.67, -0.01]) at age 5. CONCLUSIONS: Children with higher prenatal PFBS were more vulnerable to RTIs in early life, which may be attributed to immunosuppression of IgG production. These findings need to be further verified in larger prospective studies. CI - Copyright (c) 2020. Published by Elsevier Inc. FAU - Huang, Heyu AU - Huang H AD - Department of Pediatric Infectious Disease, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China. FAU - Yu, Kan AU - Yu K AD - Department of Pediatric Infectious Disease, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China. FAU - Zeng, Xinxin AU - Zeng X AD - Department of Pediatric Infectious Disease, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China. FAU - Chen, Qian AU - Chen Q AD - MOE-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China. FAU - Liu, Quanhua AU - Liu Q AD - Department of Pediatric Respiratory Disease, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China. FAU - Zhao, Yanjun AU - Zhao Y AD - Department of Developmental Behavior Pediatrics & Child Primary Care, Children's Hospital of Shanghai Jiao Tong University, China. FAU - Zhang, Jun AU - Zhang J AD - MOE-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China. FAU - Zhang, Xi AU - Zhang X AD - Clinical Research Unit, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China. Electronic address: zhangxi@xinhuamed.com.cn. FAU - Huang, Lisu AU - Huang L AD - Department of Pediatric Infectious Disease, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China. Electronic address: huanglisu@xinhuamed.com.cn. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20200830 PL - Netherlands TA - Environ Res JT - Environmental research JID - 0147621 RN - 0 (Alkanesulfonic Acids) RN - 0 (Environmental Pollutants) RN - 0 (Fluorocarbons) SB - IM MH - *Alkanesulfonic Acids/toxicity MH - Child, Preschool MH - China/epidemiology MH - *Environmental Pollutants MH - Female MH - *Fluorocarbons/toxicity MH - Humans MH - Pregnancy MH - *Prenatal Exposure Delayed Effects/chemically induced/epidemiology MH - Prospective Studies MH - *Respiratory Tract Infections OTO - NOTNLM OT - Immunoglobulin G OT - Perfluoroalkyl substances OT - Prenatal exposure OT - Prospective birth cohort study OT - Respiratory tract infections EDAT- 2020/09/02 06:00 MHDA- 2021/01/12 06:00 CRDT- 2020/09/02 06:00 PHST- 2020/04/08 00:00 [received] PHST- 2020/08/18 00:00 [revised] PHST- 2020/08/24 00:00 [accepted] PHST- 2020/09/02 06:00 [pubmed] PHST- 2021/01/12 06:00 [medline] PHST- 2020/09/02 06:00 [entrez] AID - S0013-9351(20)31053-7 [pii] AID - 10.1016/j.envres.2020.110156 [doi] PST - ppublish SO - Environ Res. 2020 Dec;191:110156. doi: 10.1016/j.envres.2020.110156. Epub 2020 Aug 30.