Journal of Pharmacy And Bioallied Sciences

ORIGINAL ARTICLE
Year
: 2019  |  Volume : 11  |  Issue : 7  |  Page : 523--529

Identification of Helicobacter pylori in saliva of patients with and without gastritis by polymerase chain reaction


E V Soma Sekhar Goud1, Ranganathan Kannan2, Umadevi K Rao2, Elizabeth Joshua2, Rooban Tavaraja2, Yash Jain3 
1 Department of Oral Maxillofacial Pathology and Microbiology, Faculty of Dentistry, MAHSA University, Kuala Lumpur, Malaysia
2 Department of Oral Maxillofacial Pathology and Microbiology, Ragas Dental College and Hospital, Chennai, Tamil Nadu, India
3 Department of General Dentistry, Malla Reddy Institute of Dental Sciences, Suraram, Hyderabad, India

Correspondence Address:
Dr. E V Soma Sekhar Goud
Department of Oral Maxillofacial Pathology and Microbiology, Faculty of Dentistry, MAHSA University, Kuala Lumpur
Malaysia

Aims and Objective: The aim of this study was to identify the presence of Helicobacter pylori in saliva of patients with and without gastritis by polymerase chain reaction (PCR) method. Materials and Methods: The study comprised 20 patients in Group I presenting with various symptoms of gastritis and 10 asymptomatic subjects in Group II. The intestinal endoscopy antral biopsies were collected from 20 symptomatic patients with gastroduodenal disorders. The saliva specimens were taken from all patients before endoscopy. PCR was performed using genomic DNA, isolated from the saliva and the biopsies of the patients as the template to detect the presence of the 16S ribosomal RNA gene in H. pylori. Results: In Group I, 10 (50%) cases of clinical gastritis were positive for H. pylori by endoscopy biopsy and 10 (50%) were negative. Of the 10 endoscopy biopsy positive cases for H. pylori, eight were PCR positive in saliva and two were negative. Of the 10 endoscopy biopsy negative cases, three were PCR positive for H. pylori in saliva and seven were negative. In Groups II, four were symptomatic for gastritis and six were negative. Of the six gastritis negative cases, three were PCR positive, four were gastritis positive, and three were PCR positive. Sensitivity and specificity of PCR were found to be 80% and 70%, respectively. The positive predictive and negative predictive values of PCR in saliva were 72.7% and 77.7%, respectively. Conclusion: PCR analysis of saliva may be handy in identification of H. pylori and serves as a noninvasive technique to diagnose and monitor the prognosis.


How to cite this article:
Goud ES, Kannan R, Rao UK, Joshua E, Tavaraja R, Jain Y. Identification of Helicobacter pylori in saliva of patients with and without gastritis by polymerase chain reaction.J Pharm Bioall Sci 2019;11:523-529


How to cite this URL:
Goud ES, Kannan R, Rao UK, Joshua E, Tavaraja R, Jain Y. Identification of Helicobacter pylori in saliva of patients with and without gastritis by polymerase chain reaction. J Pharm Bioall Sci [serial online] 2019 [cited 2019 Dec 13 ];11:523-529
Available from: http://www.jpbsonline.org/article.asp?issn=0975-7406;year=2019;volume=11;issue=7;spage=523;epage=529;aulast=Goud;type=0