Environmental exposure to organophosphate esters and suspected non-alcoholic fatty liver disease among US adults: A mixture analysis

ObjectivesNon-alcoholic fatty liver disease (NAFLD) is the most common chronic liver disease worldwide. We evaluated NAFLD using the US FLI to determine whether there is an association between urinary organophosphorus (OPE) levels and the “prevalence” of NAFLD in US individuals.MethodsThe current st...

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Main Authors: Haisheng Chai, Weiye Hu, Yaoyao Dai, Xiaohan Zhu, Ping'an Qian, Junfeng Zhu
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-10-01
Series:Frontiers in Public Health
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fpubh.2022.995649/full
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author Haisheng Chai
Weiye Hu
Yaoyao Dai
Xiaohan Zhu
Ping'an Qian
Junfeng Zhu
Junfeng Zhu
author_facet Haisheng Chai
Weiye Hu
Yaoyao Dai
Xiaohan Zhu
Ping'an Qian
Junfeng Zhu
Junfeng Zhu
author_sort Haisheng Chai
collection DOAJ
description ObjectivesNon-alcoholic fatty liver disease (NAFLD) is the most common chronic liver disease worldwide. We evaluated NAFLD using the US FLI to determine whether there is an association between urinary organophosphorus (OPE) levels and the “prevalence” of NAFLD in US individuals.MethodsThe current study included 1,102 people aged 20 years and older with information from the 2011–2014 U.S. National Health and Nutrition Examination Survey. NAFLD was assessed using the U.S. FLI. Individual OPE metabolites and OPE combinations were linked to NAFLD using logistic regression and weighted quantile sum (WQS) regression. All analyzes were carried out separately on males and females. The possible impacts of age, serum total testosterone (TT), and menopausal state, as well as the importance of the interaction term with exposure, were investigated using stratified analysis.ResultsBis (2-chloroethyl) phosphate and bis (1,3-dichloro-2-propyl) phosphate were associated with NAFLD in all males after adjusting for covariates (P < 0.05). A combination of OPEs (OPE index) was positively linked with NAFLD in the WQS analysis of all males (odds ratio for OPE index: 1.52; 95% CI: 1.06, 2.19). Stratified analyzes for males revealed that considerable connections were largely confined to individuals over 60 years old or with low total testosterone. In women, the connection was limited and inconsistent, except for the OPE index, which was positively linked with NAFLD in post-menopausal women.ConclusionsIn this study, environmental exposure to OPE was linked to an elevated risk of NAFLD in males, particularly those over 60 years old or with low TT levels. Aside from the continuous positive connection of a combination of OPEs with NAFLD risk in post-menopausal women, these correlations were weaker in women. However, these findings should be taken with caution and verified in future investigations by collecting numerous urine samples in advance to strengthen OPE exposure estimates.
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spelling doaj.art-c95cb33912d04cf496f877d37dcba50c2022-12-22T02:34:43ZengFrontiers Media S.A.Frontiers in Public Health2296-25652022-10-011010.3389/fpubh.2022.995649995649Environmental exposure to organophosphate esters and suspected non-alcoholic fatty liver disease among US adults: A mixture analysisHaisheng Chai0Weiye Hu1Yaoyao Dai2Xiaohan Zhu3Ping'an Qian4Junfeng Zhu5Junfeng Zhu6Department of Hepatology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, ChinaDepartment of Hepatology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, ChinaDepartment of Hepatology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, ChinaDepartment of Hepatology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, ChinaDepartment of Hepatology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, ChinaDepartment of Hepatology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, ChinaDepartment of Hepatology, Yueyang Integrated Chinese and Western Medicine Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, ChinaObjectivesNon-alcoholic fatty liver disease (NAFLD) is the most common chronic liver disease worldwide. We evaluated NAFLD using the US FLI to determine whether there is an association between urinary organophosphorus (OPE) levels and the “prevalence” of NAFLD in US individuals.MethodsThe current study included 1,102 people aged 20 years and older with information from the 2011–2014 U.S. National Health and Nutrition Examination Survey. NAFLD was assessed using the U.S. FLI. Individual OPE metabolites and OPE combinations were linked to NAFLD using logistic regression and weighted quantile sum (WQS) regression. All analyzes were carried out separately on males and females. The possible impacts of age, serum total testosterone (TT), and menopausal state, as well as the importance of the interaction term with exposure, were investigated using stratified analysis.ResultsBis (2-chloroethyl) phosphate and bis (1,3-dichloro-2-propyl) phosphate were associated with NAFLD in all males after adjusting for covariates (P < 0.05). A combination of OPEs (OPE index) was positively linked with NAFLD in the WQS analysis of all males (odds ratio for OPE index: 1.52; 95% CI: 1.06, 2.19). Stratified analyzes for males revealed that considerable connections were largely confined to individuals over 60 years old or with low total testosterone. In women, the connection was limited and inconsistent, except for the OPE index, which was positively linked with NAFLD in post-menopausal women.ConclusionsIn this study, environmental exposure to OPE was linked to an elevated risk of NAFLD in males, particularly those over 60 years old or with low TT levels. Aside from the continuous positive connection of a combination of OPEs with NAFLD risk in post-menopausal women, these correlations were weaker in women. However, these findings should be taken with caution and verified in future investigations by collecting numerous urine samples in advance to strengthen OPE exposure estimates.https://www.frontiersin.org/articles/10.3389/fpubh.2022.995649/fullorganophosphate estersnon-alcoholic fatty liver diseaseadultsweighted quantile sum regressionenvironmental epidemiology
spellingShingle Haisheng Chai
Weiye Hu
Yaoyao Dai
Xiaohan Zhu
Ping'an Qian
Junfeng Zhu
Junfeng Zhu
Environmental exposure to organophosphate esters and suspected non-alcoholic fatty liver disease among US adults: A mixture analysis
Frontiers in Public Health
organophosphate esters
non-alcoholic fatty liver disease
adults
weighted quantile sum regression
environmental epidemiology
title Environmental exposure to organophosphate esters and suspected non-alcoholic fatty liver disease among US adults: A mixture analysis
title_full Environmental exposure to organophosphate esters and suspected non-alcoholic fatty liver disease among US adults: A mixture analysis
title_fullStr Environmental exposure to organophosphate esters and suspected non-alcoholic fatty liver disease among US adults: A mixture analysis
title_full_unstemmed Environmental exposure to organophosphate esters and suspected non-alcoholic fatty liver disease among US adults: A mixture analysis
title_short Environmental exposure to organophosphate esters and suspected non-alcoholic fatty liver disease among US adults: A mixture analysis
title_sort environmental exposure to organophosphate esters and suspected non alcoholic fatty liver disease among us adults a mixture analysis
topic organophosphate esters
non-alcoholic fatty liver disease
adults
weighted quantile sum regression
environmental epidemiology
url https://www.frontiersin.org/articles/10.3389/fpubh.2022.995649/full
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