PGC-1alpha-responsive genes involved in oxidative phosphorylation are coordinately downregulated in human diabetes.
Author
Summary, in English
DNA microarrays can be used to identify gene expression changes characteristic of human disease. This is challenging, however, when relevant differences are subtle at the level of individual genes. We introduce an analytical strategy, Gene Set Enrichment Analysis, designed to detect modest but coordinate changes in the expression of groups of functionally related genes. Using this approach, we identify a set of genes involved in oxidative phosphorylation whose expression is coordinately decreased in human diabetic muscle. Expression of these genes is high at sites of insulin-mediated glucose disposal, activated by PGC-1alpha and correlated with total-body aerobic capacity. Our results associate this gene set with clinically important variation in human metabolism and illustrate the value of pathway relationships in the analysis of genomic profiling experiments.
Department/s
- Department of Clinical Sciences, Malmö
- Vascular Diseases - Clinical Research
- Translational Muscle Research
- Diabetes - Clinical Obesity
Publishing year
2003
Language
English
Pages
267-273
Publication/Series
Nature Genetics
Volume
34
Issue
3
Links
Document type
Journal article
Publisher
Nature Publishing Group
Topic
- Endocrinology and Diabetes
- Clinical Medicine
- Nutrition and Dietetics
- Cardiac and Cardiovascular Systems
Status
Published
Research group
- Vascular Diseases - Clinical Research
- Translational Muscle Research
- Diabetes - Clinical Obesity
ISBN/ISSN/Other
- ISSN: 1546-1718