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Published in: Digestive Diseases and Sciences 5/2015

01-05-2015 | Original Article

Significance of IL-1RA Polymorphism in Iranian Patients with Inflammatory Bowel Disease

Authors: Nasser Ebrahimi Daryani, Maryam Sadr, Shirin Moossavi, Sepideh Shahkarami, Samaneh Soltani, Elham Farhadi, Nima Rezaei

Published in: Digestive Diseases and Sciences | Issue 5/2015

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Abstract

Background and Aim

Interleukin (IL)-1 family members play an important role in the pathogenesis of inflammatory bowel disease (IBD). There are conflicting results regarding the association of IL-1 gene cluster single nucleotide polymorphisms (SNPs) with IBD and its clinical features. The aim of this study was to examine IL- −889 C/T, IL- −511 C/T, IL- +3962 C/T, IL-1R Pst-I1970 C/T, and IL-1RA Mspa-I11100 C/T SNPs in Iranian patients.

Methods

In this study, SNPs of IL-1 family members were investigated in 75 patients with IBD (40 CD and 35 UC), using polymerase chain reaction with sequence-specific primers method.

Results

IL- −511 CC genotype was significantly less present in UC compared to controls, while IL-1RA Mspa-I11100 CC was significantly associated with both Crohn’s disease (CD) and ulcerative colitis (UC). IL- −889 TT genotype was more frequently associated with extraintestinal manifestations. A significant association was observed between IL- +3962 TT genotype and the disease activity in IBD. IL-1RA Mspa-I11100 CC was significantly less frequent in CD patients who need immunosuppressive therapy. IL-1RA Mspa-I11100 CT was associated with earlier age of onset in IBD, while TT genotype was associated with higher age of onset in IBD.

Conclusions

IL-1 SNPs seem to be associated with IBD and could affect the disease severity as well.
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Metadata
Title
Significance of IL-1RA Polymorphism in Iranian Patients with Inflammatory Bowel Disease
Authors
Nasser Ebrahimi Daryani
Maryam Sadr
Shirin Moossavi
Sepideh Shahkarami
Samaneh Soltani
Elham Farhadi
Nima Rezaei
Publication date
01-05-2015
Publisher
Springer US
Published in
Digestive Diseases and Sciences / Issue 5/2015
Print ISSN: 0163-2116
Electronic ISSN: 1573-2568
DOI
https://doi.org/10.1007/s10620-014-3457-z

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