Please note that we have stopped the regular imports of Gene Expression Omnibus (GEO) data into ArrayExpress. This may not be the latest version of this experiment.
E-GEOD-11343 - Transcription profiling of mouse DBA/2J animals with Streptozotocin-induced diabetes treated with rosiglitazone reduces diabetic neuropathy
Released on 20 June 2008, last updated on 10 June 2011
Diabetic Neuropathy (DN) is a common complication of diabetes. Currently, there is no drug treatment to prevent or slow the development of DN. Rosiglitazone (Rosi) is a potent insulin sensitizer and may also slow the development of DN by a mechanism independent of its effect on hyperglycemia. A two by two design was used to test the effect of Rosi treatment on the development of DN. Streptozotocin-induced diabetic DBA/2J mice were treated with Rosi. DN and oxidative stress were quantified, and gene expression was profiled using the Affymetrix Mouse Genome 430 2.0 microarray platform. An informatics approach identified key regulatory elements activated by Rosi. Diabetic DBA/2J mice developed severe hyperglycemia, DN and elevated oxidative stress. Rosi treatment did not affect hyperglycemia but did reduce oxidative stress and prevented development of thermal hypoalgesia. Two novel transcription factor binding modules were identified that may control genes correlated to changes in DN following Rosi treatment: SP1F_ZBPF and EGRF_EGRF. Rosi treatment reduced oxidative stress and DN independent of its insulin sensitizing effects. Gene expression profiling identified two novel targets activated by Rosi treatment. These targets may be useful in designing drugs with the same efficacy as Rosi in treating DN but with fewer undesirable effects. Experiment Overall Design: There were 4 groups: Experiment Overall Design: Control Experiment Overall Design: Control + Rosi Experiment Overall Design: Diabetic (Type 1) Experiment Overall Design: Diabetic + Rosi Experiment Overall Design: Affymetrix chips were run on five mice from each group. One chip (in the Control group) failed quality control measures and was excluded.
transcription profiling by array, unknown experiment type