Article ; Online: Organophosphate ester flame retardants and plasticizers in house dust and mental health outcomes among Canadian mothers: A nested prospective cohort study in CHILD.
2023 Volume 240, Issue Pt 1, Page(s) 117451
Abstract: Organophosphate ester flame retardants and plasticizers (OPEs) are common exposures in modern built environments. Toxicological models report that some OPEs reduce dopamine and serotonin in the brain. Deficiencies in these neurotransmitters are ... ...
| Abstract | Organophosphate ester flame retardants and plasticizers (OPEs) are common exposures in modern built environments. Toxicological models report that some OPEs reduce dopamine and serotonin in the brain. Deficiencies in these neurotransmitters are associated with anxiety and depression. We hypothesized that exposure to higher concentrations of OPEs in house dust would be associated with a greater risk of depression and stress in mothers across the prenatal and postpartum periods. We conducted a nested prospective cohort study using data collected on mothers (n = 718) in the CHILD Cohort Study, a longitudinal multi-city Canadian birth cohort (2008-2012). OPEs were measured in house dust sampled at 3-4 months postpartum. Maternal depression and stress were measured at 18 and 36 weeks gestation and 6 months and 1 year postpartum using the Centre for Epidemiologic Studies for Depression Scale (CES-D) and Perceived Stress Scale (PSS). We used linear mixed models to examine the association between a summed Z-Score OPE index and continuous depression and stress scores. In adjusted models, one standard deviation increase in the OPE Z-score index was associated with a 0.07-point (95% CI: 0.01, 0.13) increase in PSS score. OPEs were not associated with log-transformed CES-D (β: 0.63%, 95% CI: -0.18%, 1.46%). The effect of OPEs on PSS score was strongest at 36 weeks gestation and weakest at 1 year postpartum. We observed small increases in maternal perceived stress levels, but not depression, with increasing OPEs measured in house dust during the prenatal and early postpartum period in this cohort of Canadian women. Given the prevalence of prenatal and postpartum anxiety and the ubiquity of OPE exposures, additional research is warranted to understand if these chemicals affect maternal mental health. |
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| MeSH term(s) | Pregnancy ; Humans ; Female ; Flame Retardants/toxicity ; Plasticizers/toxicity ; Cohort Studies ; Prospective Studies ; Dust ; Canada/epidemiology ; Esters ; Organophosphates/toxicity ; Outcome Assessment, Health Care |
| Chemical Substances | Flame Retardants ; Plasticizers ; Dust ; Esters ; Organophosphates |
| Language | English |
| Publishing date | 2023-10-21 |
| Publishing country | Netherlands |
| Document type | Journal Article |
| ZDB-ID | 205699-9 |
| ISSN | 1096-0953 ; 0013-9351 |
| ISSN (online) | 1096-0953 |
| ISSN | 0013-9351 |
| DOI | 10.1016/j.envres.2023.117451 |
| Database | MEDical Literature Analysis and Retrieval System OnLINE |
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