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Profiling the inflammatory bowel diseases using genetics, serum biomarkers, and smoking information.


ABSTRACT: Crohn's disease (CD) and ulcerative colitis (UC) are two etiologically related yet distinctive subtypes of the inflammatory bowel diseases (IBD). Differentiating CD from UC can be challenging using conventional clinical approaches in a subset of patients. We designed and evaluated a novel molecular-based prediction model aggregating genetics, serum biomarkers, and tobacco smoking information to assist the diagnosis of CD and UC in over 30,000 samples. A joint model combining genetics, serum biomarkers and smoking explains 46% (42-50%, 95% CI) of phenotypic variation. Despite modest overlaps with serum biomarkers, genetics makes unique contributions to distinguishing IBD subtypes. Smoking status only explains 1% (0-6%, 95% CI) of the phenotypic variance suggesting it may not be an effective biomarker. This study reveals that molecular-based models combining genetics, serum biomarkers, and smoking information could complement current diagnostic strategies and help classify patients based on biologic state rather than imperfect clinical parameters.

SUBMITTER: Liu R 

PROVIDER: S-EPMC10568094 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature

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Profiling the inflammatory bowel diseases using genetics, serum biomarkers, and smoking information.

Liu Ruize R   Li Dalin D   Haritunians Talin T   Ruan Yunfeng Y   Daly Mark J MJ   Huang Hailiang H   McGovern Dermot P B DPB  

iScience 20230926 10


Crohn's disease (CD) and ulcerative colitis (UC) are two etiologically related yet distinctive subtypes of the inflammatory bowel diseases (IBD). Differentiating CD from UC can be challenging using conventional clinical approaches in a subset of patients. We designed and evaluated a novel molecular-based prediction model aggregating genetics, serum biomarkers, and tobacco smoking information to assist the diagnosis of CD and UC in over 30,000 samples. A joint model combining genetics, serum biom  ...[more]

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