Plasma fibronectin in Crohn's disease
- A Allan 1, J Wyke , R N Allan , P Morel , M Robinson , D L Scott , J Alexander-Williams
- 1General Hospital, Rheumatism Research Wing, Birmingham University, London.
- 0General Hospital, Rheumatism Research Wing, Birmingham University, London.
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View abstract on PubMed
Summary
This summary is machine-generated.Low plasma fibronectin (FN) levels are found in severe Crohn's disease and decrease after surgery. While higher FN concentrations correlate with stricture formation, the relationship lacks complete predictive value for clinical use.
Area Of Science
- Gastroenterology
- Immunology
- Biochemistry
Background
- Crohn's disease is a chronic inflammatory bowel disease.
- Fibronectin (FN) is a glycoprotein involved in cell adhesion and tissue repair.
- Abnormal fibronectin metabolism is hypothesized to contribute to Crohn's disease complications like strictures and infections.
Purpose Of The Study
- To investigate the role of plasma fibronectin (FN) metabolism in Crohn's disease (CD).
- To assess the relationship between FN concentrations and disease severity, postoperative changes, and stricture formation in CD patients.
Main Methods
- Measured plasma fibronectin (FN) concentrations in CD patients with varying disease extent and in healthy controls.
- Monitored FN levels in CD patients for 10 days post-operation.
- Correlated pre-operative FN levels with the incidence of stricture formation over a one-year follow-up period.
Main Results
- Lower plasma fibronectin concentrations were observed in patients with extensive or severe Crohn's disease compared to those with limited disease or healthy controls.
- A significant 43% decrease in plasma fibronectin levels was noted post-operatively in CD patients, peaking on the second day and more pronounced after major surgery.
- Higher plasma fibronectin concentrations showed a correlation with subsequent stricture formation, though not a completely predictive relationship.
Conclusions
- Plasma fibronectin concentrations are reduced in extensive/severe Crohn's disease and decrease after surgery.
- While plasma fibronectin levels may relate to stricture risk, this association is unlikely to be clinically useful for prediction.
- Fibronectin likely plays a significant role in the pathogenesis of strictures in Crohn's disease.
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