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Gastroenterology Commons

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Full-Text Articles in Gastroenterology

Drug Response And Metabolism In Crohn's Disease, Aze Wilson Aug 2018

Drug Response And Metabolism In Crohn's Disease, Aze Wilson

Electronic Thesis and Dissertation Repository

Inflammatory bowel disease (IBD) is an illness of chronic intestinal inflammation comprised of Crohn's disease (CD) and ulcerative colitis (UC). Specialists rely heavily on drugs that target a dysregulated immune system. There is a staggering degree of variation in drug response in CD. Our understanding of drug metabolism and response in IBD is limited. Gaining new insights into IBD-specific modifications of drug metabolism may allow for improved drug efficacy and reduced toxicity. Cytochrome P450 (CYP) 3A4 is the most relevant determinant of drug metabolism and exposure for medications prescribed today. CYP3A4 is highly expressed in the liver, but is also …


Development Of Clinical Prediction Models For Surgery And Complications In Crohn’S Disease, Leonard M. Guizzetti Apr 2017

Development Of Clinical Prediction Models For Surgery And Complications In Crohn’S Disease, Leonard M. Guizzetti

Electronic Thesis and Dissertation Repository

Background and Objective: Crohn’s disease (CD)-related complications account for a substantial proportion of IBD-related healthcare expenditure. Identifying patients at risk for complications may allow for targeted use of early therapeutic interventions to alter this natural course. The objective of this project was to develop risk prediction models of CD-related surgery and complications.

Methods: Using data from the REACT cluster-randomized clinical trial (N=1898 from 41 community practices), prediction models were developed and internally validated for CD-related surgery and CD-related complications, defined as the first CD-related surgery, hospitalization or complication within 24 months. Performance of each model was assessed in terms of …