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  • Title: [A study on the relationship of Helicobacter pylori, gastrin and gastroesophageal reflux disease].
    Author: Feng GJ, Hu FL, Wang HH, Liu JX.
    Journal: Zhonghua Yi Xue Za Zhi; 2003 Jan 25; 83(2):96-9. PubMed ID: 12812673.
    Abstract:
    OBJECTIVE: To study the relationship of Helicobacter pylori, lower esophageal sphincter pressure and gastrin in gastroesophageal reflux disease, to evaluate the effect of Helicobacter pylori on gastroesophageal reflux disease. METHODS: 20 patients were underwent 24-hour ambulatory esophageal pH monitoring to confirm the diagnosis of gastroesophageal reflux disease, and their lower esophageal sphincter pressure was measured by esophageal manometry. The patients were diagnosed endoscope negative GERD and endoscope positive GERD by endoscopy, and 3 biopsy specimens obtained from the gastric antrum at the same time were used for Helicobacter pylori culture, rapid urease test and Warthin-Starry stain. Hp infection was affirmed when at least two of the three tests were positive, then the patients were divided into Hp-negative group and Hp-positive group. Fasting serum gastrin concentration was determined by radioimmunoassay in 13 patients. RESULTS: Hp-positive patients were 8 (male 4, endoscope negative GERD 2, mean age 55 +/- 9), Hp-negative patients were 12 (male 10, endoscope negative GERD 3, mean age 55 +/- 10). 13 of these patients were performed fasting serum gastrin measurement. The mean lower esophageal sphincter pressure, gastrin concentration and 24-hour pH monitoring DeMeester score in Hp-positive patients group were 11.25 mm Hg, 87.437 pg/ml and 72.30 respectively, and those in Hp-negative patients group were 13.75 mm Hg, 88.725 pg/ml and 55.64. Between the two groups, there was no significant difference in LESP, gastrin and DeMeester score (P = 0.193, P = 0.932 and P = 0.479); There was no correlation between LESP and gastrin, while serum gastrin level is associated strongly with DeMeester score (r = 0.902, P < 0.01). CONCLUSION: The study showed that Helicobacter pylori had no effect on LESP by gastrin, however serum fasting gastrin concentration and DeMeester score were associated with each other.
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