Familial Mediterranean Fever Mutation Analysis in Pediatric Patients With İnflammatory Bowel Disease: A Multicenter...

Area of Science:

• Genetics
• Pediatrics
• Gastroenterology

Background:

• Familial Mediterranean fever (FMF) mutations have been linked to chronic inflammatory diseases.
• Investigating MEFV gene mutations in pediatric inflammatory bowel disease (IBD) is crucial for understanding disease mechanisms.

Purpose of the Study:

• To evaluate the prevalence and impact of Familial Mediterranean fever (FMF) mutations in children diagnosed with inflammatory bowel disease (IBD).
• To determine the association between MEFV mutations and clinical, histopathological, and endoscopic features in pediatric IBD patients.

Main Methods:

• A multicenter study involving 597 pediatric patients with IBD (334 ulcerative colitis, 224 Crohn's disease, 39 indeterminate colitis).
• Analysis of MEFV gene mutations and correlation with disease type, histopathology, and activity indices (e.g., PUCAI).

Main Results:

• 41.9% of pediatric IBD patients carried FMF mutations; E148Q and M694V were the most common.
• Significant differences in endoscopic and histopathological findings were observed in ulcerative colitis patients based on mutation status (homozygous/heterozygous).
• Pediatric ulcerative colitis patients with FMF mutations showed lower Pediatric Ulcerative Colitis Activity Index (PUCAI) scores.

Conclusions:

• FMF mutations were observed in pediatric ulcerative colitis patients with lower disease activity but were unrelated to Crohn's disease.
• MEFV mutations did not demonstrate a significant impact on the inflammatory response or clinical outcomes in pediatric IBD patients.