Toxicogenomics studies that employ microarrays evaluate the biological response to a toxicological challenge at the level of the genome. Results from these studies are typically reported as gene and molecular pathway read outs, which can be further analyzed for their relationship to toxicity and disease outcomes. Datasets are provided as raw, probe-level files including CEL files (Affymetrix arrays) and TXT files (CodeLink or Agilent arrays).
This data domain is part of Chemical Effects in Biological Systems (CEBS) database maintained by the National Toxicology Program.
At the link provided is a PDF and one or more folders containing data. The PDF describes the data, file types, and folder structure present.