Serum angiogenin in inflammatory bowel disease

Area of Science:

• Gastroenterology
• Immunology
• Molecular Biology

Background:

• Cytokines promoting angiogenesis are implicated in inflammatory bowel disease (IBD) pathogenesis.
• These factors contribute to inflammation by increasing vascular permeability and aid tissue repair.
• Angiogenin is a key angiogenic factor with potential roles in IBD.

Purpose of the Study:

• To investigate serum levels of angiogenin in patients with ulcerative colitis (UC) and Crohn's disease (CD).
• To correlate angiogenin levels with disease characteristics such as activity, type, localization, and treatment.

Main Methods:

• Serum angiogenin levels were quantified using enzyme-linked immunosorbent assay (ELISA).
• Measurements were performed in 154 IBD patients (78 UC, 76 CD), 18 non-IBD intestinal inflammation cases, and 84 healthy controls.
• Statistical analysis compared angiogenin levels across groups and correlated them with clinical parameters.

Main Results:

• Mean serum angiogenin levels were significantly higher in IBD patients (UC: 526.5 ng/ml, CD: 508.8 ng/ml) compared to healthy controls (394.6 ng/ml).
• A statistically significant difference in mean angiogenin levels was observed among the four groups (P = 0.0003).
• IBD patients with early disease exhibited lower serum angiogenin than those with late disease (P = 0.03).

Conclusions:

• Serum angiogenin is elevated in patients suffering from inflammatory bowel disease.
• Increased angiogenin may contribute to mucosal angiogenesis and vascular permeability in IBD.
• Angiogenin levels correlate with disease duration but not activity, type, localization, or treatment.