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Inflammatory Bowel Disease III: Diagnostic Studies and Management I-Nutritional Therapy01:30

Inflammatory Bowel Disease III: Diagnostic Studies and Management I-Nutritional Therapy

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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
A colonoscopy is the definitive screening test, distinguishing ulcerative colitis from other colon diseases with similar symptoms. During a colonoscopy test, inflamed mucosa with exudate ulcerations can be observed, and biopsies are taken to determine the histologic characteristics of the...
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Inflammatory Bowel Disease V: Surgical Management01:21

Inflammatory Bowel Disease V: Surgical Management

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Surgical interventions for inflammatory bowel disease (IBD), which includes ulcerative colitis and Crohn's disease, are essential in managing symptoms and addressing complications. The selection of surgical procedures is contingent upon the specific conditions and complications that stem from these illnesses.
Here are some common surgical interventions for IBD:
423
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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Inflammatory Bowel Disease II: Crohn's Disease01:30

Inflammatory Bowel Disease II: Crohn's Disease

912
Introduction
Inflammatory bowel disease, commonly known as IBD, refers to a collection of disorders that lead to persistent inflammation of the gastrointestinal tract. The two types of IBD are ulcerative colitis, which impacts the colon, and Crohn's disease, which can involve any part of the gastrointestinal segment.
Crohn's disease
Crohn's disease is a chronic, systemic inflammatory bowel disease (IBD) that predominantly affects the gastrointestinal tract. It is marked by...
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Inflammatory Bowel Disease IV: Pharmacological Management01:29

Inflammatory Bowel Disease IV: Pharmacological Management

439
Upon diagnosis, managing Inflammatory Bowel Disease (IBD) involves addressing several crucial aspects. The primary goals include resting the bowel, correcting malnutrition, and providing symptomatic relief. Resting the bowel may consist of medications to reduce inflammation and promote healing. Correcting malnutrition is essential, often requiring dietary adjustments and nutritional supplements. Symptomatic relief aims to ease pain, diarrhea, and other discomforts in IBD.
Pharmacologic...
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Chronic Bowel Disorders: Introduction01:17

Chronic Bowel Disorders: Introduction

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Chronic bowel diseases are a group of long-term conditions affecting the digestive tract, characterized by inflammation and damage to the gut lining. These conditions primarily include irritable bowel syndrome and inflammatory bowel disease.
Irritable Bowel Syndrome (IBS) is a common disorder affecting the gastrointestinal tract. The distinctive feature is recurrent abdominal pain associated with altered bowel movements, manifesting as constipation, diarrhea, or fluctuating between both. The...
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Related Experiment Video

Updated: Jan 8, 2026

Competing-Risk Nomogram for Predicting Cancer-Specific Survival in Multiple Primary Colorectal Cancer Patients after Surgery
06:46

Competing-Risk Nomogram for Predicting Cancer-Specific Survival in Multiple Primary Colorectal Cancer Patients after Surgery

Published on: September 27, 2024

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Plasma proteomic markers predict risk for bowel resection in inflammatory bowel disease: a retrospective cohort

Xinyi Xu1,2,3,4, Chenyue Xu1,2,3,4, Na Zeng5

  • 1Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, Beijing, China.

International Journal of Surgery (London, England)
|December 22, 2025
PubMed
Summary

Plasma proteomics accurately predict bowel resection risk in inflammatory bowel disease (IBD). This approach improves surgical risk stratification beyond traditional methods, aiding early intervention for IBD patients.

Keywords:
bowel resectioninflammatory bowel diseaseplasma proteomics

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Area of Science:

  • Gastroenterology
  • Proteomics
  • Biomarker Discovery

Background:

  • Inflammatory bowel disease (IBD) frequently necessitates bowel resection due to severe complications, affecting up to 27% of patients.
  • Accurate prediction of surgical risk is vital for effective patient management and stratification.

Purpose of the Study:

  • To evaluate the predictive performance of plasma proteomic markers for future bowel resection in IBD patients.
  • To compare the efficacy of a proteomic model against conventional clinical predictors for surgical risk.

Main Methods:

  • Retrospective analysis of UK Biobank data from IBD patients.
  • Utilized Olink platform for plasma proteomics and Random Survival Forest (RSF) models.
  • Assessed predictive performance using concordance index (C-index) and Cox proportional hazards models.

Main Results:

  • The RSF model with Olink proteins showed significantly higher predictive accuracy (C-index 0.784) than conventional markers (0.543).
  • Key protein predictors included IL15, PAPPA, and PIK3AP1; a derived risk score independently predicted surgery risk.
  • Proteomic features significantly improved patient stratification beyond standard clinical predictors.

Conclusions:

  • Plasma proteomic markers offer superior prediction of bowel resection risk in IBD compared to traditional methods.
  • Integrating proteomics into clinical practice can enhance risk stratification and guide early interventions.
  • This approach has the potential to reduce the surgical burden in IBD management.