Occurrence of Helicobacter pylori and its major virulence genotypes in dental plaque samples of patients with chronic periodontitis in Iran

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VALADAN TAHBAZ SAHEL; Yadegar Abbas; AMIRMOZAFARI NOUR; Yaghoobee Siamak; EHSANI ARDAKANI MOHAMMAD JAVAD; ZOJAJI HOMAYOON

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Journal: Gastroenterology and Hepatology From Bed to Bench Year:2017 | Volume:10 | Issue:Suppl 1 Page(s): 70-78

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Title

Occurrence of Helicobacter pylori and its major virulence genotypes in dental plaque samples of patients with chronic periodontitis in Iran

Author(s)

Keywords

Helicobacter pylori

Chronic periodontitis

Virulence genotypes

Dental plaque

PCR

Abstract

Aim: This study was aimed to investigate the presence of H. pylori and its Virulence genotypes in Dental plaques of Iranian patients with Chronic periodontitis. Background: Helicobacter pylori is a Gram-negative bacterium that is associated with atrophic gastritis, peptic ulcer, and gastric cancer. Several studies have detected this bacterium in the oral cavity, suggesting it as a potential reservoir. Methods: A hundred individuals were divided in 2 groups: 50 patients with Chronic periodontitis (case group), and 50 subjects in non-periodontitis (control group). Supragingival and subgingival plaque samples were collected from the individuals using wood wedges and sterile paper points respectively, and prepared for PCR analysis. Results: Totally, H. pylori DNA was detected in 5 out of 100 (5%) Dental plaques. Of 5 Dental plaques positive for H. pylori, cagA gene was detected in 4 specimen, 3 in periodontitis group and one in non-periodontitis group. The H. pylori vacA s1m1 genotype was predominantly detected in 2/5 samples. The babA2 gene was detected in all (5/5) H. pylori-positive Dental plaques. There was no significant correlation between the presence of H. pylori genotypes from Dental plaques and Chronic periodontitis (P > 0. 05). Conclusion: Our results revealed that the rate of H. pylori is very low in the Dental plaques of Iranian patients with Chronic periodontitis. Majority of H. pylori strains from oral cavity were highly virulent based on the main clinically virulence factors they carried.

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APA: Copy

VALADAN TAHBAZ, SAHEL, Yadegar, Abbas, AMIRMOZAFARI, NOUR, Yaghoobee, Siamak, EHSANI ARDAKANI, MOHAMMAD JAVAD, & ZOJAJI, HOMAYOON. (2017). Occurrence of Helicobacter pylori and its major virulence genotypes in dental plaque samples of patients with chronic periodontitis in Iran. GASTROENTEROLOGY AND HEPATOLOGY FROM BED TO BENCH, 10(Suppl 1), 70-78. SID. https://sid.ir/paper/324898/en

Vancouver: Copy

VALADAN TAHBAZ SAHEL, Yadegar Abbas, AMIRMOZAFARI NOUR, Yaghoobee Siamak, EHSANI ARDAKANI MOHAMMAD JAVAD, ZOJAJI HOMAYOON. Occurrence of Helicobacter pylori and its major virulence genotypes in dental plaque samples of patients with chronic periodontitis in Iran. GASTROENTEROLOGY AND HEPATOLOGY FROM BED TO BENCH[Internet]. 2017;10(Suppl 1):70-78. Available from: https://sid.ir/paper/324898/en

IEEE: Copy

SAHEL VALADAN TAHBAZ, Abbas Yadegar, NOUR AMIRMOZAFARI, Siamak Yaghoobee, MOHAMMAD JAVAD EHSANI ARDAKANI, and HOMAYOON ZOJAJI, “Occurrence of Helicobacter pylori and its major virulence genotypes in dental plaque samples of patients with chronic periodontitis in Iran,” GASTROENTEROLOGY AND HEPATOLOGY FROM BED TO BENCH, vol. 10, no. Suppl 1, pp. 70–78, 2017, [Online]. Available: https://sid.ir/paper/324898/en

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