Association of Aryl Organophosphate Flame Retardants
Triphenyl Phosphate and 2‑Ethylhexyl Diphenyl Phosphate with
Human Blood Triglyceride and Total Cholesterol Levels
Posted on 2019-08-19 - 11:37
There
is growing evidence that aryl organophosphate flame retardants
(aryl-OPFRs) can disrupt lipid metabolism in animals. However, epidemiologic
studies of this possible phenomenon are lacking. In this study, we
explored the association between urinary concentrations of three aryl-OPFRs
(triphenyl phosphate (TPHP), tricresyl phosphate, and 2-ethylhexyl
diphenyl phosphate (EHDPP)) metabolites and plasma levels of triglyceride
(TG) and total cholesterol (TC) in 259 samples of the general population
by comparing with six alkylated and chlorinated OPFRs. Multivariate
linear regression analyses clarified that the log-transformed TC levels
appeared to increase linearly across the quartiles of 5-OH-EHDPP (p trend <0.001) and 4-OH-TPHP (p trend
<0.001), with an increase of 42.2% (95% CI, 36.2% to 48.2%) and
28.4% (95% CI, 26.5% to 30.3%) for the highest versus lowest quartiles
of 5-OH-EHDPP and 4-OH-TPHP, respectively. The TG level also appeared
to increase linearly across the quartiles of 5-OH-EHDPP (p trend <0.001) and 4-OH-TPHP (p trend <0.001).
The TG level in the highest quartile of 5-OH-EHDPP was 89.9% higher
(95% CI, 84.6% to 95.2%) than that in the lowest quartile and 45.3%
higher (95% CI, 40.1% to 50.7%) than that in the highest 4-OH-TPHP
quartile. We for the first time found that human exposure to EHDPP
and TPHP is associated with increases in human TC and TG levels.
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Zhao, Fanrong; Li, Yu; Zhang, Shiyi; Ding, Mengyu; Hu, Jianying (2019). Association of Aryl Organophosphate Flame Retardants
Triphenyl Phosphate and 2‑Ethylhexyl Diphenyl Phosphate with
Human Blood Triglyceride and Total Cholesterol Levels. ACS Publications. Collection. https://doi.org/10.1021/acs.estlett.9b00417
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