Helicobacter pylori Infection Enhances Gastric Mucosal Inflammation in Individuals Carrying the 260-T Allele of the CD14 Gene.
- Author:
Eun Jung KIM
1
;
Woo Chul CHUNG
;
Kang Moon LEE
;
Chang Nyol PAIK
;
Sang Bae KIM
;
You Suk OH
;
Yang Woon LEE
;
Sung Goo KANG
;
Seung June NOH
Author Information
- Publication Type:Original Article
- Keywords: Helicobacter pylori; CD14; Genetic polymorphism; Gastritis
- MeSH: Alleles; Gastritis; Genotype; Helicobacter; Helicobacter pylori; Inflammation; Lifting; Mass Screening; Polymerase Chain Reaction; Polymorphism, Genetic; Polymorphism, Restriction Fragment Length; Promoter Regions, Genetic; Stomach Neoplasms
- From:Gut and Liver 2013;7(3):317-322
- CountryRepublic of Korea
- Language:English
- Abstract: BACKGROUND/AIMS: We aim to evaluate the association between promoter polymorphism of the clusters of differentiation 14 (CD14) gene and Helicobacter pylori-induced gastric mucosal inflammation in a healthy Korean population. METHODS: The study population consisted of 267 healthy subjects who visited our hospital for free nationwide gastric cancer screening. Promoter polymorphism at -260 C/T of the CD14 gene was determined by polymerase chain reaction and restriction fragment length polymorphism analysis. The severity of gastric mucosal inflammation was estimated by a gastritis score based on the sum of the values of the grade and activity of the gastritis. Expression of soluble CD14 (sCD14) was assessed by quantitative sandwich ELISA. RESULTS: CD14 polymorphism was not associated with H. pylori infection. There were no significant differences in gastritis scores among the genotype subgroups, but subjects carrying the CD14 -260 CT/TT genotype had significantly higher sCD14 levels than those carrying the CC genotype. Subjects with the 260-T allele of the CD14 gene and H. pylori infection had significantly higher sCD14 levels than those with the same genotype but without infection. CONCLUSIONS: In individuals with the T allele at the -260 site of the promoter region of the CD14 gene, H. pylori infection accentuates gastric mucosal inflammation.
