Gastrointestinal Biomarkers in Tissue and Biological Fluid Samples From Patients and Healthy Participants Undergoing Colonoscopy, Endoscopy, or Surgery
RATIONALE: Studying samples of tissue, blood, urine, stool, and other biological fluids from patients with cancer and from healthy participants may help doctors identify and learn more about biomarkers related to cancer.
PURPOSE: This research study is looking at gastrointestinal biomarkers in tissue and biological fluid samples from patients and healthy participants undergoing colonoscopy, endoscopy, or surgery.
- Identify new potential biomarkers of increased gastrointestinal cancer risk using tissue and biofluid samples from patients and healthy volunteers undergoing colonoscopy, endoscopy, or surgery.
- Develop new screening strategies based on substances found in tissue and biofluid samples.
OUTLINE: This is a multicenter study.
Patients and healthy volunteers undergo colonoscopy, endoscopy, or surgery. Patients and healthy volunteers also undergo tissue (e.g., tumor or normal mucosa) and biofluid (e.g., blood, urine, cyst fluids or tumor cells, bile and pancreatic juices, and/or stool) sample collection. Samples are analyzed for tumor markers by proteomic methods and protein analysis. If candidate biomarkers are identified, samples are stored for future studies involving these biomarkers. Information, including demographics, personal and family history of cancer, and prior and current colonoscopy, endoscopy, or surgery results, is collected from the medical record and stored in the project database.
Patients and healthy volunteers are followed once a year for up to 5 years to determine if biomarkers have a prognostic significance.
protein analysis, proteomic profiling, biologic sample preservation procedure, laboratory biomarker analysis, medical chart review, diagnostic colonoscopy, diagnostic endoscopic procedure, diagnostic endoscopic surgery, diagnostic surgical procedure, endo
Vanderbilt-Ingram Cancer Center - Cool Springs
National Cancer Institute (NCI)
Results (where available)
- Source: http://clinicaltrials.gov/show/NCT00899626
- Information obtained from ClinicalTrials.gov on July 15, 2010
Medical and Biotech [MESH] Definitions
Flow Injection Analysis
The analysis of a chemical substance by inserting a sample into a carrier stream of reagent using a sample injection valve that propels the sample downstream where mixing occurs in a coiled tube, then passes into a flow-through detector and a recorder or other data handling device.
Protein Array Analysis
Ligand-binding assays that measure protein-protein, protein-small molecule, or protein-nucleic acid interactions using a very large set of capturing molecules, i.e., those attached separately on a solid support, to measure the presence or interaction of target molecules in the sample.
Body of knowledge related to the use of organisms, cells or cell-derived constituents for the purpose of developing products which are technically, scientifically and clinically useful. Alteration of biologic function at the molecular level (i.e., GENETIC ENGINEERING) is a central focus; laboratory methods used include TRANSFECTION and CLONING technologies, sequence and structure analysis algorithms, computer databases, and gene and protein structure function analysis and prediction.
Calorimetry, Differential Scanning
Differential thermal analysis in which the sample compartment of the apparatus is a differential calorimeter, allowing an exact measure of the heat of transition independent of the specific heat, thermal conductivity, and other variables of the sample.
The analysis of an activity, procedure, method, technique, or business to determine what must be accomplished and how the necessary operations may best be accomplished.
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