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7th June 2024 (13 Topics)

Inflammatory Bowel Disease (IBD)

Context

UK scientists have identified a significant genetic weakness present in 95% of people with IBD. This weakness makes certain immune cells, particularly macrophages, more prone to triggering excessive inflammation in the bowels.

Key Findings:

  • Role of Macrophages: Macrophages, a type of white blood cell, play a crucial role in IBD by releasing inflammatory chemicals called cytokines in the intestines. Excessive inflammation caused by macrophages is a key characteristic of IBD.
  • Master Regulator Gene: Through deep genetic analysis, researchers discovered a specific section of DNA that acts as the "master regulator" for inflammation in macrophages. Individuals with a particular version of this gene are more susceptible to developing IBD due to their heightened inflammatory response.
  • Potential Treatment Avenue: Drugs already approved for other conditions, such as cancer, have shown promise in reducing inflammation in IBD patients' samples. These drugs target the problematic macrophages and could potentially serve as a treatment for IBD in the future.

Fact Box: About Inflammatory Bowel Disease (IBD)

  • Inflammatory Bowel Disease (IBD) is a group of chronic conditions affecting the digestive tract, including Crohn's disease and ulcerative colitis.
  • These conditions cause inflammation and damage to the gastrointestinal (GI) tract, leading to symptoms like abdominal pain, diarrhea, and fatigue.
  • While the exact cause of IBD is unclear, both genetic and environmental factors are believed to play a role.
  • There is currently no cure for IBD.
  • The disease is distinct from irritable bowel syndrome (or IBS) although some of the symptoms overlap.
  • A diagnosis of IBD is only made if there is inflammation in the bowels.
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