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- W3091160652 abstract "Background: Animal studies suggest that pesticide exposure elicits endocrine changes, increases embryo implantation failure, and decreases litter size. However, only a few epidemiological studies have evaluated the effects of pesticides on the outcomes of in vitro fertilization (IVF) pregnancies. Objectives: This study examined the associations between preconception organophosphate pesticides (OP) exposure and pregnancy outcomes among women undergoing IVF in a Chinese population. Methods: This study included 522 women with infertility who underwent IVF. Women were recruited from a prospective study, the China National Birth Cohort (CNBC), from Shanghai, China, between July 2017 and December 2018. Demographic and clinical information were collected from medical records and through questionnaires. Preconception exposure to OP was assessed by measuring six nonspecific dialkylphosphate (DAP) metabolites [diethylthiophosphate (DETP), diethylphosphate (DEP), diethyldithiophosphate (DEDTP), dimethylthiophosphate (DMTP), dimethylphosphate (DMP), dimethyldithiophosphate (DMDTP)] in urine samples collected at recruitment. Generalized estimating equation (GEE) models were used to evaluate the associations between OP and pregnancy outcomes. Results: Compared with women in the lowest quartile (Q1) of individual DEP and Σ4DAP (the sum of DMP, DMTP, DEP, and DETP), women in the highest quartile (Q4) had lower odds of successful implantation, clinical pregnancy, and live birth, and most of the negative trends were significant (p-trends<0.05). There were no significant associations between urinary DAP concentrations and early IVF outcomes, including total and mature oocyte counts, best embryo quality, fertilization, E2 trigger levels, and endometrial wall thickness. Conclusion: Preconception OP exposure was inversely associated with successful implantation, clinical pregnancy, and live birth in women who underwent IVF. https://doi.org/10.1289/EHP7076" @default.
- W3091160652 created "2020-10-08" @default.
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- W3091160652 date "2020-09-01" @default.
- W3091160652 modified "2023-10-16" @default.
- W3091160652 title "Urinary Organophosphate Metabolite Concentrations and Pregnancy Outcomes among Women Conceiving through <i>in Vitro</i> Fertilization in Shanghai, China" @default.
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- W3091160652 doi "https://doi.org/10.1289/ehp7076" @default.
- W3091160652 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/7526721" @default.
- W3091160652 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/32997523" @default.
- W3091160652 hasPublicationYear "2020" @default.
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