The role of N-acetyltransferase 2 polymorphism in the etiopathogenesis of inflammatory bowel disease.

Abstract:

BACKGROUND AND PURPOSE:Inflammatory bowel disease (IBD) consists of ulcerative colitis (UC) and Crohn's disease (CD), which are complex genetic disorders resulting from the interplay between several genetic and environmental risk factors. The arylamine N-acetyltransferase 2 (NAT2) enzyme detoxifies a wide spectrum of naturally occurring xenobiotics including carcinogens and drugs. Acetylation catalyzed by NAT2 is an important process in metabolic activation of arylamines to electrophilic intermediates that initiate carcinogenesis. The aim of our study was to determine whether there is any association between the susceptibility to inflammatory bowel disease among the variations of NAT2 genotypes. METHODS:This study was carried out in 80 patients with IBD. The control group consisted of 100 healthy volunteers. The most common mutations found in the Caucasian population are at the positions 481T, 803G, 590A and 857A on the NAT2 gene. This was determined using the polymerase chain reaction-restriction fragment length polymorphism method with DNA extracted from peripheral blood. RESULTS:Risk of IBD development was 3.86 for the carriers of the NAT2*5/NAT2*7 genotype and 2.53 for the carriers with NAT2*6/NAT2*7, but it was not statistically significant. A statistically significant correlation between the NAT2*7 allele prevalence and the risk for developing IBD was found (OR = 5.8; P = 0.005). CONCLUSIONS:Higher prevalence of the NAT2*7 allele in patients with IBD and the obtained OR values could suggest that this mutation has the effect of increasing IBD development. Future studies are needed to confirm our assumptions on larger group of patients.

journal_name

Dig Dis Sci

authors

Baranska M,Trzcinski R,Dziki A,Rychlik-Sych M,Dudarewicz M,Skretkowicz J

doi

10.1007/s10620-010-1527-4

subject

Has Abstract

pub_date

2011-07-01 00:00:00

pages

2073-80

issue

7

eissn

0163-2116

issn

1573-2568

journal_volume

56

pub_type

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