Journal
ARCHIVES OF MICROBIOLOGY
Volume 203, Issue 6, Pages 3467-3472Publisher
SPRINGER
DOI: 10.1007/s00203-021-02281-y
Keywords
Polymorphisms; Interleukins; Gender; Gastritis; Intestinal metaplasia; Helicobacter pylori
Categories
Funding
- Fundacao Cearense de Apoio ao Desenvolvimento Cientifico e Tecnologico (FUNCAP)
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The study compared the expression of different interleukin gene polymorphisms in different types of gastric pathologies and found that the IL6-174 GC and IL8-251 T alleles may have a protective effect against ACG development in women. Virulent strains of H. pylori were found to be associated with different types of gastric lesions.
Stomach pathologies develop in a complex interaction between the host's genetic background and H. pylori virulent genes. Thus, our study aimed to compare active chronic gastritis (ACG), and intestinal metaplasia (IM) with inactive chronic gastritis (ICG), according to interleukin polymorphisms of IL6-174 G/C, IL8-251 A/T, IL1 beta-511 C/T, and IL1RN VNTR taking into account patient gender and H. pylori genotypes. Interleukin polymorphisms were determined by RFLP-PCR and H. pylori genotype by PCR. IL6-174 GC and IL8-251 T allele showed a protective effect in women against ACG development and, conversely, IL8-251 polymorphism showed a risk for men. More virulent H. pylori strains were associated with the IL8-251 T allele and IL1 beta-511 T allele in the AGC, and the vacAm1 allele and cagE gene from H. pylori was associated with the IM. Analysis of the progression of gastric lesions must take into account host variability genetic associated with genes H. pylori due to the relation between the virulent H. pylori genes and more severe gastric lesions, besides the relevance to the gender to IL6-174 and IL8-251 polymorphisms.
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