0000000000388880

AUTHOR

Peter V. Hodson

showing 2 related works from this author

Retene causes multifunctional transcriptomic changes in the heart of rainbow trout (Oncorhynchus mykiss) embryos

2015

Fish are particularly sensitive to aryl hydrocarbon receptor (AhR)-mediated developmental toxicity. The molecular mechanisms behind these adverse effects have remained largely unresolved in salmonids, and for AhR-agonistic polycyclic aromatic hydrocarbons (PAHs). This study explored the cardiac transcriptome of rainbow trout (Oncorhynchus mykiss) eleuteroembryos exposed to retene, an AhR-agonistic PAH. The embryos were exposed to retene (nominal concentration 32 μg/L) and control, their hearts were collected before, at and after the onset of the visible signs of developmental toxicity, and transcriptomic changes were studied by microarray analysis. Retene up- or down-regulated 122 genes. Th…

0301 basic medicineEmbryo Nonmammaliananimal structuresHealth Toxicology and Mutagenesista1172Developmental toxicityProtein metabolismdioxin-like toxicityEmbryonic Development010501 environmental sciencesToxicologyBioinformatics01 natural sciencesTranscriptome03 medical and health scienceschemistry.chemical_compoundfish embryotranscriptomicsAnimalsOligonucleotide Array Sequence Analysis0105 earth and related environmental sciencesPharmacologyRetenebiologyGene Expression Profilingta1184ta1182Gene Expression Regulation DevelopmentalHeartLipid metabolismGeneral MedicinePhenanthrenesAryl hydrocarbon receptorCell biology030104 developmental biologychemistryOncorhynchus mykissbiology.proteinta1181Rainbow troutSignal transduction
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BIOAVAILABILITY TO JUVENILE RAINBOW TROUT (ONCORYNCHUS MYKISS) OF RETENE AND OTHER MIXED-FUNCTION OXYGENASE-ACTIVE COMPOUNDS FROM SEDIMENTS

2002

Retene (7-isopropyl-1-methylphenanthrene) is a naturally formed polycyclic aromatic hydrocarbon (PAH) that causes teratogenicity in fish larvae and induction of cytochrome P450 (CYP1A) enzymes. Retene occurs at high concentrations (or =3,300 microg/g dry wt) in surface sediments contaminated by resin acids from pulp mill effluents. To assess the environmental risks of retene, it is important to evaluate conditions affecting its bioavailability and accumulation by fish. Fingerling rainbow trout were exposed to retene-spiked or naturally contaminated sediments and sampled after 4 d to determine liver CYP1A activity and concentrations of retene metabolites in bile as indicators of retene accum…

Geologic Sedimentsanimal structuresHealth Toxicology and MutagenesisPolycyclic aromatic hydrocarbonIndustrial Wastechemistry.chemical_compoundCytochrome P-450 CYP1A1AnimalsBileEnvironmental ChemistrySalmonidaeFinlandFluoranthenechemistry.chemical_classificationRetenebiologyEcologybusiness.industryPaper millEnvironmental ExposurePhenanthrenesbiology.organism_classificationBioavailabilityTroutchemistryLiverEnvironmental chemistryChemical IndustryEnzyme InductionOncorhynchus mykissRainbow troutbusinessEnvironmental Toxicology and Chemistry
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