Extracting global system dynamics of corticosteroid genomic effects in rat liver.

ABSTRACT: One of the challenges in constructing biological models involves resolving meaningful data patterns from which the mathematical models will be generated. For models that describe the change of mRNA in response to drug administration, questions exist whether the correct genes have been selected given the myriad transcriptional effects that may occur. Oftentimes, different algorithms will select or cluster different groups of genes from the same data set. A new approach was developed that focuses on identifying the underlying global dynamics of the system instead of selecting individual genes. The procedure was applied to microarray genomic data obtained from rat liver after a large single dose of methylprednisolone in 52 adrenalectomized rats. Twelve clusters of at least 30 genes each were

SUBMITTER: Yang E 

PROVIDER: S-EPMC3725546 | biostudies-literature | 2008 Mar

REPOSITORIES: biostudies-literature