These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Proinflammatory cytokine gene polymorphisms in irritable bowel syndrome.
    Author: Barkhordari E, Rezaei N, Ansaripour B, Larki P, Alighardashi M, Ahmadi-Ashtiani HR, Mahmoudi M, Keramati MR, Habibollahi P, Bashashati M, Ebrahimi-Daryani N, Amirzargar AA.
    Journal: J Clin Immunol; 2010 Jan; 30(1):74-9. PubMed ID: 19844779.
    Abstract:
    INTRODUCTION: Irritable bowel syndrome (IBS) is a multifactorial functional gastrointestinal disorder, characterized by recurrent abdominal pain and altered bowel habits. Proinflammatory cytokines can play an important role in intestinal inflammation, while their production is under genetic control. METHODS: This study was performed in a group of patients with IBS to analyze the genotype frequencies of a number polymorphic genes coding for proinflammatory cytokine (interleukin-6 (IL), tumor necrosis factor-alpha (TNF-alpha), and IL-1 group). Using polymerase chain reaction with sequence-specific primers method, the cytokine genes were amplified, and alleles and genotypes of 71 patients with IBS were detected on gel electrophoresis, and the results were compared with healthy control subjects. RESULTS: Results of the analyzed data showed that the frequencies IL-1R C allele at position Pst-I 1970 (P = 0.017), IL-6 G allele at position -174 (P = 0.002), and TNF-alpha G allele at position -238 (P < 0.001) in the patient group were significantly higher than the control group. IL-6 GG genotype (-174) and TNF-alpha GG genotype (-238) in the patient group were also significantly overrepresented (P < 0.001), while IL-6 CG genotype (-174) and TNF-alpha GA genotype (-238) were significantly decreased in the patients with IBS (P < 0.001). The frequencies of IL-6 (-174, nt565) GG haplotype and TNF-alpha (-308, -238) GG haplotype were also significantly higher in the patient group (P < 0.001), whereas the frequencies of the haplotypes IL-6 CG and TNF-alpha GA were significantly decreased in the patients with IBS (P < 0.001). CONCLUSION: IL-6 and TNF-alpha proinflammatory cytokine gene polymorphisms could change individual susceptibility to IBS and might have a role in pathophysiology of disease.
    [Abstract] [Full Text] [Related] [New Search]