期刊
HELICOBACTER
卷 14, 期 2, 页码 147-155出版社
WILEY
DOI: 10.1111/j.1523-5378.2009.00662.x
关键词
coagulation; gastritis; ulcer; fibrinolysis; infection
资金
- Ministry of Education, Culture, Sports, Science and Technology of Japan [18590846, 17590788]
- Mie Medical Research (2006)
- Okasan-Kato Research (2007)
- Suzuken Memorial (2005) Foundations
- Mie University COE Project Fund
- Grants-in-Aid for Scientific Research [17590788, 18590846] Funding Source: KAKEN
Thrombin-activatable fibrinolysis inhibitor (TAFI) plays a role in the regulation of coagulation and inflammation. In addition to inhibiting the fibrinolytic system, TAFI may also regulate the bradykinin and complement systems. We hypothesized that TAFI also plays a role in defense mechanisms of the gastric mucosa during Helicobacter pylori infection. This study comprised 65 patients with gastroduodenal disorders: 41 patients with H. pylori infection, 13 without, and 11 patients with cured H. pylori infection. The gastric intramucosal concentrations of TAFI were measured by enzyme immunoassay. The gastric levels of TAFI and plasminogen activator inhibitor-1 were significantly increased in patients with H. pylori compared to those without infection or cured H. pylori. The presence of TAFI was detected in gastric mucosal epithelial cells. The concentration of TAFI was correlated with the degree of gastric mucosal atrophy, inflammation, and disease activity. These results show that TAFI is present in the gastric mucosa and that it may play a role in the pathogenesis of H. pylori infection-associated gastroduodenal disorders.
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