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MB Sample ID: SA074027
Local Sample ID: | 40023178_2 |
Subject ID: | SU001135 |
Subject Type: | Human |
Subject Species: | Homo sapiens |
Taxonomy ID: | 9606 |
Age Or Age Range: | 25-78 yr |
Gender: | Male and female |
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Collection:
Collection ID: | CO001129 |
Collection Summary: | Fresh frozen normal colon mucosal tissue samples were collected from participants in the Aspirin/Folate Polyp Prevention Study [1, 2] at the year three (end of treatment) colonoscopy. After the endoscope was advanced to the cecum, biopsy specimens were obtained from the mid-ascending colon (5 cm above the ileocecal valve). Immediately after the biopsies were taken, they were removed from the forceps, placed into 1.8 ml freezer tubes and immersed in liquid nitrogen or a dry ice/ethanol slurry until storage in a -70C freezer. The specimens were shipped on dry ice from the clinical centers to the Dartmouth biorepository storage facility and subsequently to the metabolomics analysis lab at Emory University. In addition, a colon tissue reference was generated using normal colon tissue removed at surgery from an anonymous donor. References 1. Baron JA, Cole BF, Sandler RS, et al. A randomized trial of aspirin to prevent colorectal adenomas. The New England journal of medicine. 2003;348(10):891-9. 2. Cole BF, Baron JA, Sandler RS, et al. Folic acid for the prevention of colorectal adenomas: a randomized clinical trial. JAMA : the journal of the American Medical Association. 2007;297(21):2351-9. |
Sample Type: | Colon mucosal tissue |
Storage Conditions: | Described in summary |