Project description:Methyl tert-butyl ether (MTBE) has been shown to target developing vasculature in piscine and mammalian model systems. In the zebrafish, MTBE induces vascular lesions throughout development. These lesions result from exposure to MTBE at an early stage in development (6-somites to Prim-5 stages). During this time period, transcript levels of vegfa, vegfc, and vegfr1 were significantly decreased in embryos exposed to 5 mM MTBE. We performed global gene analysis as an unbiased approach to discover possible modes of action of MTBE vascular toxicity.
Project description:Comparison of gene expression profiles from Danio rerio muscle of wiltype (AB) and homozygote/heterozygote tert mutants (AB tert(-/-), AB tert(+/)). The RNA-seq data comprise 3 groups. Jena Centre for Systems Biology of Ageing - JenAge (www.jenage.de)
Project description:Comparison of gene expression profiles from Danio rerio liver of wiltype (AB) and homozygote/heterozygote tert mutants (AB tert(-/-), AB tert(+/)). The RNA-seq data comprise 3 groups. Jena Centre for Systems Biology of Ageing - JenAge (www.jenage.de)
Project description:Comparison of gene expression profiles from Danio rerio brain of wiltype (AB) and homozygote/heterozygote tert mutants (AB tert(-/-), AB tert(+/-)). The RNA-seq data comprise 3 groups. Jena Centre for Systems Biology of Ageing - JenAge (www.jenage.de)
Project description:Methyl tert-butyl ether (MTBE) has been shown to target developing vasculature in piscine and mammalian model systems. In the zebrafish, MTBE induces vascular lesions throughout development. These lesions result from exposure to MTBE at an early stage in development (6-somites to Prim-5 stages). During this time period, transcript levels of vegfa, vegfc, and vegfr1 were significantly decreased in embryos exposed to 5 mM MTBE. We performed global gene analysis as an unbiased approach to discover possible modes of action of MTBE vascular toxicity. Embryos were exposed at 3 hours post fertilization (hpf) in triplicate to one of three concentrations of MTBE: 5mM (induces vascular lesions and significantly decreases vegfa), 0.625mM (NOAEL; no observed adverse effect level), and 0.00625mM (100-fold below NOAEL), or to embryo media (control). Samples were collected at 6-somites (~15hpf), 21-somites (~24 hpf), and Prim-5 (~30 hpf) stages of development. Embryos were meticulously staged at exposure and at the time of collection to maintain a homogeneous population. Our experimental design sought to explore the effect of three concentrations MTBE on three different stages of zebrafish embryonic development during the critical period established for the chemical. This time period also corresponds to an important time in the cardiovascular system develop of our model vertebrate.
Project description:Comparison of gene expression profiles from Danio rerio skin of wiltype (AB) and homozygote/heterozygote tert mutant phenotypes (AB tert(-/-), AB tert(+/)). The RNA-seq data comprises 3 groups. Jena Centre for Systems Biology of Ageing - JenAge (www.jenage.de)
Project description:Comparison of gene expression profiles from Danio rerio embryos of wiltype, miR-101a and miR-29a treated animals. The RNA-seq data comprise 3 groups. Jena Centre for Systems Biology of Ageing - JenAge (www.jenage.de)
Project description:Chlorothalonil (2,4,5,6-tetrachloroisophthalonitrile) is a broad spectrum fungicide used extensively in agricultural crops . The aim of this study is to analyse the effects of Chorothalonil on the gene expression profiles in zebrafish (Danio rerio), exposed to two concentrations of the fungicide in the water. Nominal concentrations were 1) Low 0.007mg/l (environmentally relevent) and 2) High 0.035mg/ml . A commercial third generation microarray for Danio rerio (Agielnt V3, 4x44k) was used to identify patterns of gene expression in male livers during a 96h toxicological assay.
