INITIAL STUDY ON CAGPAI, OIPA, DUPA OF HELICOBACTER PYLORI IN DUODENAL ULCER PATIENTS IN VIETNAM

Vũ Văn Khiên1,, Đoàn Vũ Nam2, Nguyễn Quang Duật2, Phạm Hồng Khánh2, Trần Thị Huyền Trang1
1 108 Military Central Hospital
2 Military Hospital 103, Vietnam Military Medical University

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Abstract

Introduction: Since 1994, WHO has classified H.pylori in group I causing gastric cancer. However, the pathogenicity of H. pylori is highly dependent on its virulence factor. Research topic on the rate of cagPAI, oipA, dupA in duodenal ulcer patients in Vietnam. Patients and mehods: 43 patients with duodenal ulcer were confirmed on endoscopy and histopathology. CagPAI, oipA, dupA were performed by PCR. Results: Common age (31-59 years old): 60.5%. Male/Female ratio: 1.5. Common symptoms of duodenal ulcer include: epigastric pain, belching and heartburn. Number of patients with 01 ulcer: 88.4%. The rate of positive cagPAI, oipA, dupA in duodenal ulcer patients were  62.8%, 9.3%, 65.1%, respectively. Number of patients with 2 combined genes (cagPAI + dupA) were 19/34 (55.9%). Conclusion: The oipA gene of H. pylori is a high risk factor for duodenal ulcer in Vietnam. Need to study on more quantity

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References

1. Yamaoka Y. Mechanisms of disease: Helicobacter pylori virulence factors. Nat Rev Gastroenterol Hepatol. 2010;7(11): 629-641.
2. Yamaoka Y, Souchek J, Odenbreit S, et al. Discrimination between cases of duodenal ulcer and gastritis on the basis of putative virulence factors of Helicobacter pylori. Journal of clinical Microbiology 2002;40(6): 2244-2246
3. Khatoon J, Prasad KN, Prakash RR, et al. Association of heterogenicity of Helicobacter pylori cag pathogenicity island with peptic ulcer diseases and gastric cancer. Br. J. Biomed Sci 2017;74(3): 121-126
4. Liu J, He C, Chen M, et al. Association of presence/absence and on/off patterns of Helicobacter pylori oipA gene with peptic ulcer disease and gastric cancer risks: A meta-analysis. BMC Infectious Disease 20-13;13: 555-564
5. Braga LLBC, Batista MHR, de Azevedo OGR, et al. OipA “on” status of Helicobacter pylori is associated with gastric cancer in North-Eastern Brazil. BMC Cancer 2019;19(1):48
6. Lu H, Hsu P, Graham DY, Yamaoka Y. Duodenal ulcer promoting gene of Helicobacter pylori. Gastroenterology. 2005;128(4): 833–848.
7. Zhang Z, Zheng Q, Lu H, et al. The Helicobacter pylori duodenal ulcer promoting gene, dupA, in China. BMC Gastroenterol. 2008; 8: 49–54.
8. Alam J, Sarkar A, Karmadar BC, et al. Novel virulence factor dupA of Helicobacter pylori as an important risk determinant for disease manifestion: An overview. World Journal of Gastroenterology 2020;26(32): 4739-4752