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  • Title: Epidermal growth factor and prostaglandin E2 levels in Helicobacter pylori-positive gastric intraepithelial neoplasia.
    Author: Chen Z, Wu J, Xu D, Huang M, Sun S, Zhang H, Huang X, Wang P.
    Journal: J Int Med Res; 2016 Apr; 44(2):241-7. PubMed ID: 26880792.
    Abstract:
    OBJECTIVE: To investigate levels of epidermal growth factor (EGF) and prostaglandin E2 (PGE2) in Han Chinese patients with Helicobacter pylori-positive gastric low-grade intraepithelial neoplasia (LGIN). METHODS: In this prospective, observational study, gastric specimens from patients with LGIN were collected by gastroscopy with consecutive biopsy. EGF and PGE2 concentrations in serum and gastric juice from patients with LGIN were measured by enzyme-linked immunosorbent assay. Presence of H. pylori infection was assessed in patients with LGIN and healthy controls. RESULTS: Out of 5 638 patients and 548 controls, H. pylori infection in patients with chronic gastritis was associated with disease type (endoscopic classification) and disease severity. Patients with H. pylori-positive LGIN had significantly higher concentrations of serum EGF and lower concentrations of serum PGE2 versus patients with H. pylori-negative LGIN. Serum EGF and PGE2 levels in patients with LGIN were not significantly associated with disease type, but were significantly associated with disease severity. CONCLUSIONS: H. pylori infection was associated with chronic gastritis type (endoscopic classification) and disease severity. Abnormal EGF and PGE2 levels may be associated with H. pylori-positive LGIN in Han Chinese patients in central China.
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