Gene Expression Profiling and Bioinformatic Analysis Identifying Genes and Biochemical Pathways in Type 2 Diabetes

Tracking Information
First Submitted Date	September 1, 2005
First Posted Date	September 2, 2005
Last Update Posted Date	June 12, 2008
Study Start Date	October 2004
Primary Completion Date	Not Provided
Current Primary Outcome Measures	Not Provided
Original Primary Outcome Measures	Not Provided
Change History	Complete list of historical versions of study NCT00143013 on ClinicalTrials.gov Archive Site
Current Secondary Outcome Measures	Not Provided
Original Secondary Outcome Measures	Not Provided
Current Other Outcome Measures	Not Provided
Original Other Outcome Measures	Not Provided
Descriptive Information
Brief Title	Gene Expression Profiling and Bioinformatic Analysis Identifying Genes and Biochemical Pathways in Type 2 Diabetes
Official Title	Gene Expression Profiling by DNA Chips and Subsequent Bioinformatic Analysis for Identification of Genes and Biochemical Pathways Associated With Type 2 Diabetes
Brief Summary	Type 2 diabetes is a disorder of the metabolic system that greatly affects individual health and imposes significant cost for society on health care. It is necessary to initiate research with emphasis on improvement on quality of life and reduce the serious complications as a result of type 2 diabetes. In type 2 diabetes insulin resistance and impairment of insulin secretion by beta-cells are the major pathophysiological defects and characterized by raised plasma glucose levels. Today, little is known about gene regulation and biochemical pathways involved in the disease. Bioinformatics and gene expression microarrays (GEM) will be applied to gain insight into the molecular pathophysiology of type 2 diabetes. The simultaneous monitoring of thousands of genes in parallel can identify novel genes and entire biochemical pathways that are dysregulated at the transcriptional level. Affymetrix Inc. chips or spotted arrays will be applied as DNA microarray tools. Bioinformatic software programs and databases will be employed as data mining tools in order to perform statistical analysis, cluster analysis and biochemical pathway analysis. Biopsies from skeletal muscle and adipose tissue from both diabetics and nondiabetics will be applied. Changes in genes and biochemical pathways between diabetics and nondiabetics and functional relationships between adipose tissue and skeletal muscle will be investigated. Grouping of subtypes in type 2 diabetes will be performed and a classification system will be constructed. Building a classifier may provide better and more precise diagnosis of type 2 diabetes. Major advances in health science of type 2 diabetes thus seems to be promising and paving the way for individual treatment based on a more precise diagnosis.
Detailed Description	Not Provided
Study Type	Observational
Study Design	Time Perspective: Prospective
Target Follow-Up Duration	Not Provided
Biospecimen	Not Provided
Sampling Method	Not Provided
Study Population	Not Provided
Condition	Type 2 Diabetes
Intervention	Not Provided
Study Groups/Cohorts	Not Provided
Publications *	Not Provided
* Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
Recruitment Information
Recruitment Status	Unknown status
Estimated Enrollment; (submitted: September 1, 2005)	100
Original Enrollment	Same as current
Study Completion Date	April 2007
Primary Completion Date	Not Provided
Eligibility Criteria	Inclusion Criteria: Of diabetic subjects: Type 2 diabetes; Age: 30-65 years; BMI: 27-35 Of nondiabetic subjects: Age: 30-65 years; BMI: 27-35 Exclusion Criteria: Of diabetic subjects: Medication, which have any influence on glucose metabolism and gene expression in adipose tissue and skeletal muscle at the time of sampling of biopsies.; Disease in liver, heart, vessels or endocrine organs Of nondiabetic subjects: Type 2 diabetes; Relatives with type 2 diabetes; Hyperglycemia; Medication, which have any influence on glucose metabolism and gene expression in adipose tissue and skeletal muscle at the time of sampling of biopsies.; Disease in liver, heart, vessels or endocrine organs
Sex/Gender	Sexes Eligible for Study: All
Ages	30 Years to 65 Years (Adult, Older Adult)
Accepts Healthy Volunteers	Yes
Contacts	Contact information is only displayed when the study is recruiting subjects
Listed Location Countries	Denmark
Removed Location Countries
Administrative Information
NCT Number	NCT00143013
Other Study ID Numbers	002
Has Data Monitoring Committee	Not Provided
U.S. FDA-regulated Product	Not Provided
IPD Sharing Statement	Not Provided
Responsible Party	Not Provided
Study Sponsor	Odense University Hospital
Collaborators	Not Provided
Investigators	Principal Investigator: Vibe Skov, MSc Odense University Hospital
PRS Account	Odense University Hospital
Verification Date	June 2008