TY - JOUR
T1 - Path Analysis Reveals the Direct Effect of PCB28 Exposure on Cognitive Dysfunction in Older Chinese Females
AU - Pan, Chenwei
AU - Zhao, Huijuan
AU - Du, Qiaoling
AU - Xu, Yong
AU - Tian, Dajun
AU - Xiao, Shuo
AU - Wang, Haiyin
AU - Wei, Xiao
AU - Wu, Chunfeng
AU - Ruan, Yuanyuan
AU - Zhao, Chunhua
AU - Tao, Gonghua
AU - Zheng, Weiwei
N1 - Funding Information: This work was supported by the National Natural Science Foundation of China (No. 82122058 & 81773379 & 81202165), Key Young Talents Training Program for Shanghai Disease Control and Prevention (21QNGG10), the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD), the Shanghai Municipal Commission of Health and the Family Foundation for the Fifth Round of the Three-Year Public Health Action Plan of Shanghai (GWV-1.1 & GWV-10.1-XK08), for General Program (202040186) and for Young Talents (2017YQ023), the Natural Science Foundation of Shanghai (21 ZR1438400). Publisher Copyright: © 2022 by the authors. Licensee MDPI, Basel, Switzerland.
PY - 2022/6/1
Y1 - 2022/6/1
N2 - Background: Research indicates that exposure to polychlorinated biphenyls (PCBs) can cause neurobehavioral impairments in neonates and adults, but the way specific PCBs’ congeners impact cognition functions at a low exposure level in a real-life co-exposure system remains poorly understood. This study aimed to investigate the association of PCBs burden with cognition function among elderly adults. Methods: Based on the Weitang Geriatric Diseases study (2014–2015), the current study measured the plasma concentrations of six indicator-PCBs by GC-MS/MS and assessed the cognitive dysfunction (CoD) via an Abbreviated Mental Test in 266 participants (ages 61–90). Sequential logistic regression was used to analyze the effects of PCBs on cognition functions. Female participants aged less than or equal to 80 years were selected, and path analysis was used to determine the direct or indirect impacts of co-exposure PCBs on CoD by structural equation modeling. Results: After sequential adjustments to potential confounding factors and correction by the Bonferroni, no statistically significant correlation between PCBs exposure and CoD was found in participants (p > 0.05). However, in the co-exposure system, after controlling for co-exposures and confounders, exposure to PCB28 had a direct effect on CoD in females aged between 61 and 80, with a factor load of 0.670. Conclusions: After adjusting for the co-exposures and confounders, exposure to PCB28 can directly increase the risk of cognitive impairment in older Chinese females.
AB - Background: Research indicates that exposure to polychlorinated biphenyls (PCBs) can cause neurobehavioral impairments in neonates and adults, but the way specific PCBs’ congeners impact cognition functions at a low exposure level in a real-life co-exposure system remains poorly understood. This study aimed to investigate the association of PCBs burden with cognition function among elderly adults. Methods: Based on the Weitang Geriatric Diseases study (2014–2015), the current study measured the plasma concentrations of six indicator-PCBs by GC-MS/MS and assessed the cognitive dysfunction (CoD) via an Abbreviated Mental Test in 266 participants (ages 61–90). Sequential logistic regression was used to analyze the effects of PCBs on cognition functions. Female participants aged less than or equal to 80 years were selected, and path analysis was used to determine the direct or indirect impacts of co-exposure PCBs on CoD by structural equation modeling. Results: After sequential adjustments to potential confounding factors and correction by the Bonferroni, no statistically significant correlation between PCBs exposure and CoD was found in participants (p > 0.05). However, in the co-exposure system, after controlling for co-exposures and confounders, exposure to PCB28 had a direct effect on CoD in females aged between 61 and 80, with a factor load of 0.670. Conclusions: After adjusting for the co-exposures and confounders, exposure to PCB28 can directly increase the risk of cognitive impairment in older Chinese females.
KW - Abbreviated Mental Test
KW - cognitive dysfunction
KW - older females
KW - path analysis
KW - polychlorinated biphenyls
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U2 - https://doi.org/10.3390/ijerph19126958
DO - https://doi.org/10.3390/ijerph19126958
M3 - Article
C2 - 35742207
SN - 1661-7827
VL - 19
JO - International journal of environmental research and public health
JF - International journal of environmental research and public health
IS - 12
M1 - 6958
ER -