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Published on: June 21, 2018
Association between interleukin-1beta-511C/T polymorphism and reflux esophagitis in Japan
Atsushi Muramatsu1, Takeshi Azuma, Tomoyuki Okuda
1Second Department of Internal Medicine, Faculty of Medical Sciences, University of Fukui, Matsuoka-cho, Yoshida-gun, Fukui 910-1193, Japan.
Interleukin-1beta (IL-1beta) gene polymorphisms, specifically the IL-1beta-511T allele, are linked to an increased risk of reflux esophagitis. This genetic association suggests a role in hyperacidity and gastric acid secretion differences.
Area of Science:
- Genetics
- Gastroenterology
- Molecular Biology
Background:
- Interleukin-1beta (IL-1beta) gene polymorphisms are associated with hypochlorhydria and gastric cancer risk with H. pylori.
- Limited data exists on genetic risk factors for reflux esophagitis.
- This study investigates the association between IL-1beta polymorphisms and reflux esophagitis.
Purpose of the Study:
- To investigate the association between Interleukin-1beta (IL-1beta) gene polymorphisms and the risk of reflux esophagitis.
- To determine if specific IL-1beta genotypes are more prevalent in patients with reflux esophagitis compared to controls.
Main Methods:
- Genotyping of IL-1beta-511C/T was performed using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP).
- Study included 48 patients with reflux esophagitis, 96 healthy controls, and 89 gastric cancer patients.
Main Results:
- The IL-1beta-511T allele frequency was significantly higher in reflux esophagitis patients (57.3%) than controls (41.1%).
- IL-1beta-511T/T genotypes were significantly more frequent in reflux esophagitis patients (31.3%) versus controls (15.6%) and gastric cancer patients (21.4%).
- Odds ratios indicated a 4-fold increased risk for reflux esophagitis with IL-1beta-511T/T genotypes compared to controls.
Conclusions:
- The IL-1beta-511T allele is associated with reflux esophagitis, particularly in cases of hyperacidity.
- Genetic variations in gastric acid secretion may differ between Japanese and Caucasian populations.
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