Sex-specific associations of the endocrine-disrupting chemicals with serum neurofilament light chain among US adults

Objective: Endocrine-disrupting chemicals (EDCs) can interfere with endocrine function and lead to neurological damage. Neurofilament light chain (NfL) is a protein released into the blood after neuroaxonal damage, and it has become a dependable biomarker for neurological conditions. The study aimed...

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Main Authors: Kaiting Hong, Haoyue Cheng, Yan Zhuang, Yunxian Yu
Format: Article
Language:English
Published: Elsevier 2025-06-01
Series:Ecotoxicology and Environmental Safety
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Online Access:http://www.sciencedirect.com/science/article/pii/S0147651325006086
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author Kaiting Hong
Haoyue Cheng
Yan Zhuang
Yunxian Yu
author_facet Kaiting Hong
Haoyue Cheng
Yan Zhuang
Yunxian Yu
author_sort Kaiting Hong
collection DOAJ
description Objective: Endocrine-disrupting chemicals (EDCs) can interfere with endocrine function and lead to neurological damage. Neurofilament light chain (NfL) is a protein released into the blood after neuroaxonal damage, and it has become a dependable biomarker for neurological conditions. The study aimed to investigate the associations between single or combined EDCs exposure and serum NfL levels in adults. Methods: The 1372 participants included in the study were from the 2013–2014 National Health and Nutrition Examination Survey. Due to the difference in types of EDCs, participants were divided into two populations. Multiple linear regression models were used to assess the association between 32 EDCs and NfL. The least absolute shrinkage and selection operator regression model was used for EDCs selection and the weighted quantile sum (WQS) regression was used for examining the association of EDCs mixture with NfL and identify the predominant exposure. Results: Levels of urinary bisphenol S, mono(2-ethylhexyl) phthalate, dibutyl phosphate, glyphosate, and 3,5,6-trichloropyridinol were positively associated with serum NfL levels, while benzophenone-3, methylparaben, and propylparaben showed negative associations. In the WQS regression model, the changes of NfL were 0.154 (95 % CI: 0.014–0.294) and 0.164 (95 % CI: 0.033–0.296) for each quartile increase in WQS index of EDCs mixture in the two populations, respectively. Analysis of the subgroup with gender stratification suggested that the association between EDCs mixture and NfL was only significant in men. The positive mixture β was 0.219 (95 % CI: 0.056–0.380) and 0.257 (95 % CI: 0.082–0.433) in the two population, respectively. Conclusion: The study suggested a potential association between single or combined exposure to EDCs and NfL levels. High-level EDCs exposure might be associated with more severe neurological damage, particularly in men.
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spelling doaj-art-721a132dafd64da6a44366608f047a8a2025-08-20T02:26:07ZengElsevierEcotoxicology and Environmental Safety0147-65132025-06-0129811827210.1016/j.ecoenv.2025.118272Sex-specific associations of the endocrine-disrupting chemicals with serum neurofilament light chain among US adultsKaiting Hong0Haoyue Cheng1Yan Zhuang2Yunxian Yu3Zhoushan Women and Children Hospital, Zhoushan, ChinaDepartment of Epidemiology & Health Statistics, School of Public Health, School of Medicine, Zhejiang University, Hangzhou, ChinaDepartment of Epidemiology & Health Statistics, School of Public Health, School of Medicine, Zhejiang University, Hangzhou, ChinaDepartment of Epidemiology & Health Statistics, School of Public Health, School of Medicine, Zhejiang University, Hangzhou, China; Corresponding author.Objective: Endocrine-disrupting chemicals (EDCs) can interfere with endocrine function and lead to neurological damage. Neurofilament light chain (NfL) is a protein released into the blood after neuroaxonal damage, and it has become a dependable biomarker for neurological conditions. The study aimed to investigate the associations between single or combined EDCs exposure and serum NfL levels in adults. Methods: The 1372 participants included in the study were from the 2013–2014 National Health and Nutrition Examination Survey. Due to the difference in types of EDCs, participants were divided into two populations. Multiple linear regression models were used to assess the association between 32 EDCs and NfL. The least absolute shrinkage and selection operator regression model was used for EDCs selection and the weighted quantile sum (WQS) regression was used for examining the association of EDCs mixture with NfL and identify the predominant exposure. Results: Levels of urinary bisphenol S, mono(2-ethylhexyl) phthalate, dibutyl phosphate, glyphosate, and 3,5,6-trichloropyridinol were positively associated with serum NfL levels, while benzophenone-3, methylparaben, and propylparaben showed negative associations. In the WQS regression model, the changes of NfL were 0.154 (95 % CI: 0.014–0.294) and 0.164 (95 % CI: 0.033–0.296) for each quartile increase in WQS index of EDCs mixture in the two populations, respectively. Analysis of the subgroup with gender stratification suggested that the association between EDCs mixture and NfL was only significant in men. The positive mixture β was 0.219 (95 % CI: 0.056–0.380) and 0.257 (95 % CI: 0.082–0.433) in the two population, respectively. Conclusion: The study suggested a potential association between single or combined exposure to EDCs and NfL levels. High-level EDCs exposure might be associated with more severe neurological damage, particularly in men.http://www.sciencedirect.com/science/article/pii/S0147651325006086Sex-specific associationsEndocrine-disrupting chemicalsCombined exposureNeurofilament light chainNeurological disorders
spellingShingle Kaiting Hong
Haoyue Cheng
Yan Zhuang
Yunxian Yu
Sex-specific associations of the endocrine-disrupting chemicals with serum neurofilament light chain among US adults
Ecotoxicology and Environmental Safety
Sex-specific associations
Endocrine-disrupting chemicals
Combined exposure
Neurofilament light chain
Neurological disorders
title Sex-specific associations of the endocrine-disrupting chemicals with serum neurofilament light chain among US adults
title_full Sex-specific associations of the endocrine-disrupting chemicals with serum neurofilament light chain among US adults
title_fullStr Sex-specific associations of the endocrine-disrupting chemicals with serum neurofilament light chain among US adults
title_full_unstemmed Sex-specific associations of the endocrine-disrupting chemicals with serum neurofilament light chain among US adults
title_short Sex-specific associations of the endocrine-disrupting chemicals with serum neurofilament light chain among US adults
title_sort sex specific associations of the endocrine disrupting chemicals with serum neurofilament light chain among us adults
topic Sex-specific associations
Endocrine-disrupting chemicals
Combined exposure
Neurofilament light chain
Neurological disorders
url http://www.sciencedirect.com/science/article/pii/S0147651325006086
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