2007
Octylphenol reduces the expressions of steroidogenic enzymes and testosterone production in mouse testis
Kim S, Kim J, Lee H, Yoon Y. Octylphenol reduces the expressions of steroidogenic enzymes and testosterone production in mouse testis. Environmental Toxicology 2007, 22: 449-458. PMID: 17696135, DOI: 10.1002/tox.20280.Peer-Reviewed Original ResearchConceptsTestosterone productionSteroidogenic enzymesLeydig cellsMale miceTestosterone concentrationsJuvenile exposureDecreased testosterone productionAltered cholesterol metabolismSerum testosterone concentrationsAdult male micePositive Leydig cellsCholesterol side-chain cleavage enzymeCholesterol transport genesSide-chain cleavage enzymeInterstitial Leydig cellsSteroidogenic acute regulatory proteinAlteration of steroidogenesisPresent studyAcute regulatory proteinEstradiol valerateInhibits steroidogenesisCholesterol metabolismRT-PCR analysisP450scc proteinPotential mechanisms
2006
Nonylphenol and Octylphenol-Induced Apoptosis in Human Embryonic Stem Cells Is Related to Fas-Fas Ligand Pathway
Kim S, Kim B, Shim J, Gil J, Yoon Y, Kim J. Nonylphenol and Octylphenol-Induced Apoptosis in Human Embryonic Stem Cells Is Related to Fas-Fas Ligand Pathway. Toxicological Sciences 2006, 94: 310-321. PMID: 16984955, DOI: 10.1093/toxsci/kfl114.Peer-Reviewed Original ResearchConceptsHuman embryonic stem cellsUndifferentiated hES cellsEmbryonic stem cellsHES cellsNeural progenitor cellsEarly embryonic developmentStem cellsProgenitor cellsToxic stress responseChemical-induced apoptosisFas ligand protein expressionFas-Fas ligand pathwayCell replacement therapyEmbryonic developmentCaspase activationES cellsCaspase-8Stress responseDevelopmental stagesDNA fragmentationCell typesFas-FasL interactionCommon environmental contaminantsApoptosisProtein expression
2004
PREPUBERTAL EXPOSURE TO 4-TERT-OCTYLPHENOL INDUCES APOPTOSIS OF TESTICULAR GERM CELLS IN ADULT RAT
KIM S, LEE H, YANG H, KIM H, YOON Y. PREPUBERTAL EXPOSURE TO 4-TERT-OCTYLPHENOL INDUCES APOPTOSIS OF TESTICULAR GERM CELLS IN ADULT RAT. Systems Biology In Reproductive Medicine 2004, 50: 427-441. PMID: 15669608, DOI: 10.1080/01485010490475093.Peer-Reviewed Original ResearchConceptsTesticular germ cellsEstradiol valerateSerum LH concentrationsSerum testosterone concentrationsGerm cellsWeek old ratsPrepubertal male ratsLH concentrationsMale reproductive organsMale ratsTestosterone concentrationsAdult ratsOld ratsChronic exposureMarked reductionSeminiferous tubulesRatsSeminal vesiclesBcl-2Decreased biosynthesisBax mRNAThree timesTesticular developmentBcl-xL mRNAApoptosis