PMID- 35013956 OWN - NLM STAT- MEDLINE DCOM- 20220503 LR - 20220503 IS - 1614-7499 (Electronic) IS - 0944-1344 (Linking) VI - 29 IP - 21 DP - 2022 May TI - Mixed effects of perfluoroalkyl and polyfluoroalkyl substances exposure on cognitive function among people over 60 years old from NHANES. PG - 32093-32104 LID - 10.1007/s11356-021-17789-5 [doi] AB - The relationship between perfluoroalkyl and polyfluoroalkyl substances (PFAS) and cognitive function are inconsistent, and the mixed effects of PFAS on cognitive function are still unclear. We aimed to evaluate the joint effects of PFAS on cognitive function assessed using four tests as follows: the Consortium to Establish a Registry for Alzheimer's Disease Immediate Recall Test (IRT), Delayed Recall Test (DRT), the Animal Fluency Test (AFT), and the Digit Symbol Substitution Test (DSST) in the US elderly. A total of 777 individuals aged >/= 60 from the National Health and Nutrition Examination Survey (NHANES) 2011-2014 were included in this study. Multivariable logistic regression and Bayesian kernel machine regression (BKMR) were constructed to estimate the overall and the individual effects of PFAS exposure on cognitive function. There were 21.36%, 22.65%, 21.62%, and 21.24% participants with cognitive decline in IRT, DRT, AFT, and DSST, respectively. After multivariable adjustment, perfluorooctanoic acid (PFOA) was inversely associated with cognitive decline in IRT, DRT, and AFT, while no significant association was observed between any other PFAS and cognitive decline. Compared with the lowest quartile, the adjusted odds ratio of cognitive decline with a 95% confidence interval (CI) for the highest quartile of PFOA was 0.33 (95% CI: 0.15-0.69) in IRT, 0.50 (0.26-0.96) in DRT, and 0.45 (0.21-0.95) in AFT. In BKMR analysis, the overall effect of mixtures was significantly protective on cognitive decline in IRT, of which PFOA made the greatest contribution. The consistent protective effect in DRT and DSST was observed when all the chemicals were at their 50th percentile or below it. No significant interaction was observed among PFAS for cognitive function. These findings suggested that PFAS mixture at a low level of current exposure of the US population may have a protective effect on cognitive function. CI - (c) 2021. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature. FAU - Weng, Xueqiong AU - Weng X AD - Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, No. 601 Huangpu Ave West, Guangzhou, 510632, Guangdong, China. FAU - Liang, Huanzhu AU - Liang H AD - Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, No. 601 Huangpu Ave West, Guangzhou, 510632, Guangdong, China. FAU - Tan, Yuxuan AU - Tan Y AD - Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, No. 601 Huangpu Ave West, Guangzhou, 510632, Guangdong, China. FAU - Chen, Jingmin AU - Chen J AD - Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, No. 601 Huangpu Ave West, Guangzhou, 510632, Guangdong, China. FAU - Fei, Qiaoyuan AU - Fei Q AD - Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, No. 601 Huangpu Ave West, Guangzhou, 510632, Guangdong, China. FAU - Liu, Shan AU - Liu S AD - Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, No. 601 Huangpu Ave West, Guangzhou, 510632, Guangdong, China. FAU - Guo, Xinrong AU - Guo X AD - Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, No. 601 Huangpu Ave West, Guangzhou, 510632, Guangdong, China. FAU - Wen, Lin AU - Wen L AD - Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, No. 601 Huangpu Ave West, Guangzhou, 510632, Guangdong, China. FAU - Wu, Yingying AU - Wu Y AD - Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, No. 601 Huangpu Ave West, Guangzhou, 510632, Guangdong, China. FAU - Jing, Chunxia AU - Jing C AUID- ORCID: 0000-0001-7333-4181 AD - Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, No. 601 Huangpu Ave West, Guangzhou, 510632, Guangdong, China. jcxphd@gmail.com. AD - Guangdong Key Laboratory of Environmental Exposure and Health, Jinan University, Guangzhou, 510632, Guangdong, China. jcxphd@gmail.com. LA - eng PT - Journal Article DEP - 20220111 PL - Germany TA - Environ Sci Pollut Res Int JT - Environmental science and pollution research international JID - 9441769 RN - 0 (Alkanesulfonic Acids) RN - 0 (Environmental Pollutants) RN - 0 (Fluorocarbons) SB - IM MH - Aged MH - *Alkanesulfonic Acids MH - Animals MH - Bayes Theorem MH - Cognition MH - *Environmental Pollutants MH - *Fluorocarbons MH - Humans MH - Nutrition Surveys OTO - NOTNLM OT - BKMR OT - Cognitive function OT - Elderly OT - Mixed effect OT - PFAS OT - Protective EDAT- 2022/01/12 06:00 MHDA- 2022/05/04 06:00 CRDT- 2022/01/11 06:59 PHST- 2021/07/27 00:00 [received] PHST- 2021/11/23 00:00 [accepted] PHST- 2022/01/12 06:00 [pubmed] PHST- 2022/05/04 06:00 [medline] PHST- 2022/01/11 06:59 [entrez] AID - 10.1007/s11356-021-17789-5 [pii] AID - 10.1007/s11356-021-17789-5 [doi] PST - ppublish SO - Environ Sci Pollut Res Int. 2022 May;29(21):32093-32104. doi: 10.1007/s11356-021-17789-5. Epub 2022 Jan 11.