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Sökning: WFRF:(Kitraki E.)

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1.
  • Caporale, N., et al. (författare)
  • From cohorts to molecules: Adverse impacts of endocrine disrupting mixtures
  • 2022
  • Ingår i: Science. - : American Association for the Advancement of Science (AAAS). - 0036-8075 .- 1095-9203. ; 375:6582
  • Tidskriftsartikel (refereegranskat)abstract
    • Convergent evidence associates exposure to endocrine disrupting chemicals (EDCs) with major human diseases, even at regulation-compliant concentrations. This might be because humans are exposed to EDC mixtures, whereas chemical regulation is based on a risk assessment of individual compounds. Here, we developed a mixture-centered risk assessment strategy that integrates epidemiological and experimental evidence. We identified that exposure to an EDC mixture in early pregnancy is associated with language delay in offspring. At human-relevant concentrations, this mixture disrupted hormone-regulated and disease-relevant regulatory networks in human brain organoids and in the model organisms Xenopus leavis and Danio rerio, as well as behavioral responses. Reinterrogating epidemiological data, we found that up to 54% of the children had prenatal exposures above experimentally derived levels of concern, reaching, for the upper decile compared with the lowest decile of exposure, a 3.3 times higher risk of language delay. © 2022 American Association for the Advancement of Science. All rights reserved.
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2.
  • Diamanti, E., et al. (författare)
  • Endoplasmic reticulum stress and mineralization inhibition mechanism by the resinous monomer HEMA
  • 2013
  • Ingår i: International Endodontic Journal. - : Wiley-Blackwell. - 0143-2885 .- 1365-2591. ; 46:2, s. 160-168
  • Tidskriftsartikel (refereegranskat)abstract
    • AIM: To investigate the expression of two endoplasmic reticulum (ER)-resident key chaperone proteins, ERdj5 and BiP, under the influence of resinous monomers and its relationship with the inhibition of mineralization caused by the monomer 2-hydroxyethyl methacrylate (HEMA).METHODOLOGY: The ERdj5 and BiP expression was studied in vitro, in primary human pulp cell cultures after treatment with three different HEMA concentrations at different time periods. Subsequently, the expression of both the odontoblast markers dentine sialoprotein (DSP) and osteonectin (OSN) was studied in human pulp cells under the same conditions.RESULTS: The ERdj5 and BiP expression was upregulated in the pulp cells. DSP and OSN were largely dispersed in the cytoplasm in control cell cultures but accumulated in a perinuclear area after exposure to HEMA. Their expression levels were not affected.CONCLUSIONS: The increased expression of ERdj5 and BiP may reflect activation of ER stress. DSP and OSN accumulation into the cells may lead to their secretion arrest and inhibition of dentine matrix formation. These events may elucidate the mechanism by which HEMA inhibits the mineralization process.
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