, Volume 58, Issue 4, pp 218-223
Date: 30 Jan 2009

3020insC insertion in NOD2/CARD15 gene, a prevalent variant associated with anti-Saccharomyces cerevisiae antibodies and ileal location of Crohn’s disease in Tunisian population

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Abstract.

Objective:

Our aim is to investigate the relation between CARD15 3020insC mutation, anti-Saccharomyces cerevisiae antibodies (ASCA) and disease phenotype, in Tunisian inflammatory bowel disease (IBD) patients.

Materials:

A hundred Tunisian patients with IBD (75 Crohn’s disease CD and 25 ulcerative colitis UC) and 60 matched healthy controls were studied.

Methods:

CARD15 mutation was analysed by using an allele-specific polymerase chain reaction and sequencing. Assessment of ASCA in serum was performed by ELISA.

Results:

The frequency of the mutation was significantly higher in Crohn’s disease than in control (p = 0,0005; OR = 20.45; CI 95% = 2.86–413.85) and did not differ statistically in UC group (p = 0, 05) from control. ASCAs were present in 60% of CD and 20, 8% of UC

Conclusion:

This study suggests that in northen Tunisian population, 3020insC mutation in NOD2/CARD15 gene is a prevalent mutation leading to the typical Crohn’s disease including ileal location, stricturing and penetrating clinical types and ASCA expression.

Received 24 June 2008; returned for revision 30 July 2008; received from final revision 13 October 2008; accepted by M. Parnham 21October 2008
K. Bougatef, A. Moussa, S. Ouerhani; The authors have collaborated on the same level.