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Abstract
Background: Electronic waste (e-waste) disposal poses a major health concern in developing countries.
Objectives: We investigated whether prenatal exposure to e-waste pollutants affects sex hormones and oxidative status.
Methods: Parturient women living in an e-waste recycling site (exposed subjects, n = 46) and a reference site (referents, n = 44) were recruited.
Results: Compared with referents, the levels of sex hormones estradiol and progesterone were significantly elevated in exposed subjects (P<0·05); a significant increase in the mRNA levels of estrogen receptor alpha and beta, and a significant decrease in the mRNA levels of progesterone receptor were detected in exposed subjects (P<0·05); a significant increase in malondialdehyde, and suppression of the activities of superoxide dismutase and glutathione peroxidase (P<0·05) were observed in exposed subjects.
Conclusions: Our results revealed that sex hormones and oxidative homeostasis were disrupted in pregnant women and their fetuses at the e-waste recycling site.
This work was supported by grants from the National Natural Science Foundation of China (30972436/81172623).
Disclosure
The authors declare no conflicts of interest.