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The Capital Region of Denmark - a part of Copenhagen University Hospital
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Biochemical Markers, Genotype, and Inflammation in Pediatric Inflammatory Bowel Disease: A Danish Population-Based Study

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Our aim was to characterize the biochemical markers at diagnosis in patients with inflammatory bowel disease (IBD), to assess the utility of these to predict disease course and investigate if genotype influences biochemical markers of inflammation. Summary: Patients were included from a population-based pediatric IBD cohort from Eastern Denmark. Data on biochemical markers and medical as well as surgical treatment were registered at diagnosis, 30 days, 6 and 12 months after diagnosis. Fifty-two single nucleotide polymorphisms (SNPs) known to be associated with IBD were selected for genotyping based on previous genetic studies. Key messages: A total of 190 IBD patients (97 ulcerative colitis [UC], 87 Crohn's disease [CD], and 6 IBD unclassified) were included. UC patients with extensive disease had higher C-reactive protein, erythrocyte sedimentation rate, and platelet count at diagnosis compared to UC patients with less extensive disease. No similar differences between disease extent groups were found in CD. Low albumin at diagnosis was associated with an increased risk of surgery in both UC (OR 1.35; 95% CI: 1.05-1.75) and CD patients (OR 1.23; 95% CI: 1.01-1.48) and increased use of azathioprine and anti-tumor necrosis factor alpha use in the total IBD cohort (OR 1.15; 95% CI: 1.04-1.27 and OR 1.19 [1.08-1.34]). One SNP (rs4986791 in the TLR-4 locus) and 2 SNPs (rs6785049 in the Pregnane-x-receptor gene and rs10500264 in the SLCA10 gene) were associated with a change in albumin and hemoglobin over time respectively in our IBD cohort. Our study confirms albumin to be a marker of severe disease course. Furthermore, the patient's genotype possibly affects the inflammatory response. Future studies in larger pediatric cohorts are needed to confirm our findings.

Original languageEnglish
JournalDigestive Diseases
Volume37
Issue number2
Pages (from-to)140-146
Number of pages7
ISSN0257-2753
DOIs
Publication statusPublished - Jan 2019

    Research areas

  • Children, Genotype single nucleotide polymorphism, Inflammation, Inflammatory bowel disease, Laboratory markers

ID: 55618008