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Association of TNF-α but not IL-1β levels with the presence of Helicobacter pylori infection increased the risk of peptic ulcer development.

Abstract：

:Peptic ulcer is a lesion in the mucosa of the digestive tract affecting many people all around the world. Recent investigations have indicated that produced inflammatory cytokines such as TNF-α and IL-1β in response to gastric infection by Helicobacter pylori play an important role in the development of peptic ulcer. With regard to the significance of these cytokines in peptic ulcer development and the high prevalence of this disease in the developing countries, this study aimed to investigate the association of TNF-α and IL-1β with peptic ulcer in the presence of H. pylori. This case-control study enrolled 61 patients with peptic ulcer disease (PUD) as cases and 59 people without peptic ulcer (NPUD) as controls. Blood samples and endoscopic biopsies were collected. H. pylori infection was confirmed by using rapid urease test (RUT), specific IgG measurement and histopathological examination. Then, IL-1β and TNF-α levels were evaluated using enzyme linked immunosorbent assay (ELISA). The seropositivity of H. pylori was 62.5% in the studied population, while by considering RUT and histopathological examination along with specific-IgG antibody, H. pylori infection decreased to 56.7%. In addition, H. pylori infection was significantly (OR = 0.37; 95% CI = 0.17-0.82; P = .02) associated with peptic ulcer development. The TNF-α level in PUD and infected H. pylori subjects was significantly higher than that of control and un-infected H. pylori individuals. However, no significant difference of IL1β level was observed between PUD and control groups as well as between H. pylori infected and un-infected individuals. Interestingly, IL-1β level in PUD patients without H. pylori infection was significantly higher than infected ones. Moreover, a significant correlation between specific-IgG antibody with TNF-α level was observed. Taken together, our results showed that increased level of TNF-α could probably play pivotal role in pathogenesis of peptic ulcer in the presence of H. pylori infection. These findings also highlighted the importance of IL-1β in the absence of H. pylori infection in peptic ulcer development.

journal_name

Cytokine

journal_title

Cytokine

authors

Tourani M,Habibzadeh M,Karkhah A,Shokri-Shirvani J,Barari L,Nouri HR

doi

10.1016/j.cyto.2018.01.003

subject

Has Abstract

pub_date

2018-10-01 00:00:00

pages

232-236

eissn

1043-4666

issn

1096-0023

pii

S1043-4666(18)30003-6

journal_volume

110

pub_type

杂志文章

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Association of TNF-α but not IL-1β levels with the presence of Helicobacter pylori infection increased the risk of peptic ulcer development.