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    Evaluating Chemopreventive and Chemotherapeutic Agent Effectiveness in a Mouse Model of Sporadic Colorectal Cancer Using Optical Coherence Tomography

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    Author
    LeGendre-McGhee, Susan
    Issue Date
    2012
    Keywords
    colorectal cancer
    interferometry
    mouse model
    optical coherence tomography
    Biomedical Engineering
    chemoprevention
    chemotherapy
    Advisor
    Barton, Jennifer K.
    
    Metadata
    Show full item record
    Publisher
    The University of Arizona.
    Rights
    Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
    Abstract
    Optical coherence tomography (OCT) is a minimally-invasive imaging modality that generates high resolution cross-sectional images of tissue. The present study employed a 2 mm diameter endoscopic spectral domain OCT system in the in vivo evaluation of the drugs α-Difluoromethylornithine and Sulindac as chemopreventive and chemotherapeutic agents in a mouse model of sporadic colorectal cancer. 30 mm lateral images of each colon at eight different rotations were obtained at five different time points. Visual analysis of the images was performed to determine the number and size of discrete adenomas, with gross photos and histology serving as gold standard confirmation of the final imaging time point. When applied for chemoprevention, DFMO and Sulindac both significantly reduced the incidence of adenoma, appearing to interact additively in the prevention of tumorigenesis. For chemotherapy, however, only Sulindac had a significant effect on the number of adenoma and neither DFMO nor Sulindac significantly affected tumor growth.
    Type
    text
    Electronic Thesis
    Degree Name
    M.S.
    Degree Level
    masters
    Degree Program
    Graduate College
    Biomedical Engineering
    Degree Grantor
    University of Arizona
    Collections
    Master's Theses

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