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http://dx.doi.org/10.1007/s10815-024-03133-6DOI Listing

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These protocols describe a detailed method to determine the DNA damage and F-actin and microtubule defects of metaphase II oocytes caused by hexavalent chromium, Cr(VI), an endocrine disrupting chemical (EDC). The protocol provides systematic steps to determine protein expression encoded by pluripotency proteins such as Oct4, Nanog, and Cdx2 during early embryonic development. Occupational or environmental exposure to EDCs has significantly increased infertility in both men and women.

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Organophosphate esters in human serum: a relatively simple and efficient liquid chromatography-mass spectrometry method.

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Key Laboratory of the Public Health Safety, Ministry of Education, Department of Environmental Health, School of Public Health, Fudan University, Shanghai 200032, PR China.

Organophosphate esters (OPEs) are widely used as flame retardants and plasticizers, which are of growing concern due to their endocrine-disrupting effects, developmental toxicity, and potential carcinogenicity. However, data on human exposure to OPEs is still scarce. In this study, a relatively simple and efficient method with less serum consumption for the detection of OPEs in human serum was developed and validated.

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Endocrine disrupting chemicals (EDCs) such as bisphenol S (BPS) are xenobiotic compounds that can disrupt endocrine signaling following exposure due to steric similarities to endogenous hormones within the body. EDCs have been shown to induce disruptions in normal epigenetic programming (epimutations) that accompany dysregulation of normal gene expression patterns that appear to predispose disease states. Most interestingly, the prevalence of epimutations following exposure to many different EDCs often persists over multiple subsequent generations, even with no further exposure to the causative EDC.

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Endocrine-disrupting chemical concentrations in follicular fluid and follicular reproductive hormone levels.

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Article Synopsis
  • The study aimed to explore the relationship between chemicals in follicular fluid (FF) and levels of reproductive hormones, particularly in the context of in vitro fertilization (IVF) outcomes.
  • It involved 72 women averaging 30.9 years old, analyzing various hormone levels and 24 chemicals (mostly phthalates and phenols) found in FF samples collected from leading follicles.
  • Findings indicated that higher concentrations of certain phthalate metabolites were linked to increased estradiol (E2) levels, highlighting the need for further research on endocrine-disrupting chemicals and their effects on female fertility.*
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