Project description:Adult Sprague Dawley rats were treated i.g. with 50 mg/kg alpha-naphthylisothiocyanate (ANIT) or vehicle (corn oil). Hepatobiliary liver injury occurred at 24 h postdose in ANIT rats with repair at 120h. Livers were extracted from rats at 24h and 120 h post ANIT exposure. This study investigated differences in mRNA expression between the injury and repair phases in the context of ANIT exposure.
Project description:Adult Sprague Dawley rats were treated i.g. with 50 mg/kg alpha-naphthylisothiocyanate (ANIT) or vehicle (corn oil). Hepatobiliary liver injury occurred at 24 h postdose in ANIT rats with repair at 120h. Livers were extracted from rats at 24h and 120 h post ANIT exposure. This study investigated differences in mRNA expression between the injury and repair phases in the context of ANIT exposure. 8 week male Sprague Dawley rats were administered ANIT or vehicle for quantification of hepatobiliary injury via clinical chemistry biomarkers and pathology between 6 and 168 h postdosing. Rats sacrificed at 24 h and 120h postdosing coincided with peak injury and injury resolution, respectively.
Project description:The mice were treated i.p. with pregnenolone-16-α-carbonitrile (PCN, 50mg/kg dissolved in DMSO-corn oil 1:3) or vehicle (DMSO-corn oil 1:3) once daily for four days. The mice were fasted for four hours and then administered glucose (2g/kg) by oral gavage or further kept on fasting. The mice were sacrificed 1 hour after glucose administration.
Project description:Female mice treated on post-natal day 1-5 with corn-oil control or 50 mg/kg genistein were evaluated as adults for the uterine response to 1 mg/kg nM dexamethasone (or saline vehicle). Adult mice were adrenalectomized and ovariectomized 2 weeks prior to dexamethasone (or vehicle) treatment.
Project description:To examine changes, if any, in the expression of mRNAs in the liver tissue of mice, we have employed whole genome microarray expression profiling as a discovery platform to identify genes responsive to Trichloroethylene (TCE) treatment. In our results, the expression levels of 431 mRNAs were changed after TCE exposure, of which 291 were up-regulated and 140 were down-regulated. Using qPCR, we validated six of the mRNA expression changed genes, viz., Jun, Cdkn1a, Rad51b, Uhrf1, Svil and Ihh. Six B6C3F1 male mice were oral administrated with either corn oil or TCE (dissolved in corn oil, 1000mg/kg b.w per day) for 5 days. The expression changes of mRNAs in TCE exposured mouse liver were screened by whole genome microarray expression profiling and were validated by qPCR.
Project description:RCCHanTM:WIST male rats were administered for 7 days by oral gavage with vehicle (corn oil) or 100 mg/kg/day of pregnenolone-16α-carbonitrile(PCN). We used microarrays to evaluate gene expression profiling in rat liver at the early phase of treatment with PCN.
Project description:Pregnant rats were treated for 5 days with 100mg/kg/day DEHP or vehicle control (corn oil) via a wafer which the rats consumed orally. After the fifth treatment, rats were euthanized and uterine horns were dissected. Amniotic fluid was collected from the gestational sac via syringe and collected into 1.5mL tubes. Tubes were then stored at -80 celsius.
Project description:Pregnant rats were treated for 5 days with 100mg/kg/day DEHP or vehicle control (corn oil) via a wafer which the rats consumed orally. After the fifth treatment, rats were euthanized and uterine horns were dissected. Amniotic fluid was collected from the gestational sac via syringe and collected into 1.5mL tubes. Tubes were then stored at -80 celsius
Project description:This study investigates the effects of the aryl hydrocarbon receptor (AhR) ligands TCDD and PCB126 on hepatic gene expression in female sprague dawley rats. Rats were treated with toxicological equivalent doses of TCDD (100ng/kg/day) (Toxic equivalence factor (TEF) = 1.0), PCB126 (30ng, 300ng or 1000ng/kg/day) (TEF = 0.1) or a vehicle control of corn oil:acetone (99:1) 5 days a week for 52 weeks.