Search results for "estrogenicity"

showing 3 items of 3 documents

Bis(hydroxyphenyl)methane-bisphenol F-metabolism by the HepG2 human hepatoma cell line and cryopreserved human hepatocytes

2011

author cannot archive publisher's version/PDF; International audience; Bisphenol F (BPF) is present in the environment and as a contaminant of food. Humans may, therefore, be exposed to BPF, and an assessment of this risk is required. BPF has been shown to have genotoxic and endocrine-disruptor properties in a human hepatoma cell line (HepG2), which is a model system for studies of xenobiotic toxicity. In this study, we investigated the ability of HepG2 cells to biotransform BPF, because metabolism may affect the observed effects of BPF, and we compared this metabolic capacity with that of human hepatocytes. Cells were incubated for 24 hours with [(3)H]-BPF. The culture medium was then conc…

Bisphenol FHealth Toxicology and MutagenesisestrogenicityCell Culture Techniques010501 environmental sciencesToxicology01 natural sciencesMass SpectrometryCryopreservationchemistry.chemical_compoundenzyme level[SDV.IDA]Life Sciences [q-bio]/Food engineeringperformance liquid chromatographyratLuciferasesinductionChromatography High Pressure Liquidendocrine disruptor0303 health sciencesfood and environmental contaminantMolecular StructureHep G2 CellsGeneral MedicineBiochemistryHepg2 cellsin vitro modeldispositionToxicityEnvironmental Pollutantsliver enzymebiotransformationGlucuronidePlasmidsBiologyTransfectionliver03 medical and health sciencesHumans[SPI.GPROC]Engineering Sciences [physics]/Chemical and Process EngineeringBenzhydryl Compounds030304 developmental biology0105 earth and related environmental sciencesCryopreservationPharmacologyChemical Health and Safetyactivitybisphenol aEstrogen Receptor alphaPublic Health Environmental and Occupational HealthMetabolismbeta-GalactosidaseHepatoma cell linechemistryHepatocytesXenobiotic
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Advancing the ecotoxicological relevancy of zebrafish : application of early-juvenile 20dpfZF to assess xenoestrogenicity of environmental chemicals …

2014

aromataseekotoksikologiaestrogeenitsukupuolihormonitin vivo early life-stagesukupuolen määräytyminenestrogenicityin vivo -menetelmäseeprakalazebrafishvitellogeninteollisuuskemikaalithormonaaliset vaikutukset
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Use of Early Juvenile Zebrafish Danio Rerio for In-Vivo Assessment of Endocrine Modulation by Xenoestrogens

2013

Reliable and cost-effective early-life stage (ELS) bioassays incorporating practical experimentation without compromising scientific relevance are crucial in chemical risk assessment. This study investigated the use of 20 days- post-fertilization life stage ( 20dpfZF ) of zebrafish Danio rerio to screen environmental chemicals known to be estrogenic in adult fish. Firstly, studies with key genes in steroidogenesis were conducted; the brain isoform of aromatase gene ( cyp19a1b ) being the most prominently expressed biomarker. Regulation of mRNA levels of molecular biomarkers, vitellogenin 1 gene ( vtg1) and cyp19a1b were selected to assess the endocrine modulation by xenoestrogens, 17α-ethin…

brain aromataseVitellogenin 1Xenoestrogenicityearly life stageZebrafish
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