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Related Concept Videos

Inflammatory Bowel Disease I: Ulcerative Colitis01:27

Inflammatory Bowel Disease I: Ulcerative Colitis

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Introduction
Inflammatory bowel disease, or IBD, encompasses a group of disorders characterized by chronic inflammation or ulceration of the gastrointestinal tract.
Risk Factors
The exact cause of IBD remains unclear, although it is believed to be due to a mix of genetic, environmental, microbial, and immune factors. Genetic factors are significant in determining susceptibility to IBD, with family history being a critical risk factor. Individuals with a first-degree relative who has IBD are at...
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Various diagnostic tests are employed in the diagnostic process for Inflammatory Bowel Disease (IBD), particularly to differentiate between Crohn's disease and ulcerative colitis.
Diagnostic studies
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Ulcerative colitis is a chronic inflammatory condition primarily affecting the colon and rectum. The primary drugs used in the treatment of ulcerative colitis are aminosalicylates. They exhibit anti-inflammatory and immunosuppressive properties. They modulate inflammatory mediators and inhibit the activity of nuclear factor κB (NF-κB). Aminosalicylates also reduce inflammation by inhibiting prostaglandin and leukotriene production and decreasing neutrophil chemotaxis and superoxide...
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Related Experiment Video

Updated: Jan 17, 2026

Non-invasive Assessment of the Efficacy of New Therapeutics for Intestinal Pathologies Using Serial Endoscopic Imaging of Live Mice
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Investigating Causal Links between Metabolite Profiles and Ulcerative Colitis: A Bidirectional Mendelian

Parvin Zarei1, Zoha Kamali1,2, Ammar Hassanzadeh Keshteli3

  • 1Department of Bioinformatics, Isfahan University of Medical Sciences, Isfahan, Iran.

Journal of Medical Signals and Sensors
|September 15, 2025
PubMed
Summary

Total lipids in small high-density lipoprotein levels show a potential link to ulcerative colitis (UC) development. Further research may identify these lipids as biomarkers for UC screening and prevention.

Keywords:
Biomarkerscausalitycolitisinflammatory bowel diseasesulcerative

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Area of Science:

  • Genetics
  • Metabolomics
  • Gastroenterology

Background:

  • Ulcerative colitis (UC) development is influenced by metabolic biomarkers, but causal links remain unclear.
  • Investigating the relationship between blood metabolites and UC is crucial for understanding disease mechanisms.

Purpose of the Study:

  • To evaluate the causal relationships between 503 blood metabolites and ulcerative colitis (UC) using a bidirectional Mendelian randomization study.
  • To identify potential metabolic biomarkers for UC screening, prevention, and therapeutic target discovery.

Main Methods:

  • Utilized genome-wide association study (GWAS) data for 503 blood metabolites and UC from European ancestry cohorts.
  • Employed inverse variance weighted (IVW) method for primary analysis and various sensitivity analyses (MR-Egger, weighted median) to ensure robustness.

Main Results:

  • A marginal significant positive association was observed between total lipids in small high-density lipoprotein levels (S.HDL.L) and UC development (OR = 1.167, P = 0.051).
  • No statistically significant causal effect of UC on the studied metabolites was detected.

Conclusions:

  • Total lipids in S.HDL.L may serve as a potential circulating biomarker for UC screening and prevention.
  • These lipids could be candidate molecules for elucidating UC pathogenesis and identifying drug targets.