Journal of Pure and Applied MicrobiologyVol. 9 No. Special Edition May. 2015

Association Between H.pylori babA Virulence Factor with Clinical Outcome and ABO Blood Groups

Heshmat Shahi1, Mandana Moghni2, Rasol Bahreini3, Somayeh Reiisi4, Marzieh Sadeghiani1, Masoud Rahimi1 and Hedayatollah Shirzad*

1Cellular and Molecular Research Center, Shahrekord University of Medical Sciences, Shahrekord, Iran. 2Department of Pathology, Shahrekord University of Medical Sciences, Shahrekord, Iran. 3Department of Internal Medicine, Shahrekord University of Medical Sciences, Shahrekord, Iran. 4Department of Genetics, Faculty of Science, University of Shahrekord, Shahrekord, Iran.

Received on 30 August 2014 and accepted on 30 October 2014



Helicobacter pylori infection is a prevalence infection 50% of the human population. The main H. pylori adhesin is the BabA, which was the first identified factor. The aim of this study was to determine the relationship between the ABO blood groups and various gastrointestinal diseases 140 patients, were included in this study. Gastric biopsies were taken for recognition of H.pylori by RUT and PCR. Blood samples were tested for ABO blood group. In the present study 140 H.pylori positive samples examined for the presence or absence of babA gene by PCR. From 140 patients, 35% were positive for babA gene and 65% were negative for this gene. Positivity rate of H. pylori babA infection was 42.4 % in blood group O, 18.8 % in blood group A, 100% in blood group B and 44.8 % in blood group AB. The frequencies of ABO blood group among endoscopic findings are predominant for Gastritis for group A. In our study, There was statistically significant difference in babA (+) and babA (–) were compared in endoscopy finding (P<0.001) and there was statistically significant difference in positivity rate of H.pylori infection among ABO blood groups (p< 0.001). The higher incidence of Gastritis and peptic ulcer was in patients with blood group A and AB and there was statistically significant between these symptoms (p= 0.02). Our results showed that the prevalence of babA genotype is associated with gastritis and gastric ulcer and there is a relation with ABO blood group.

Keywords : Helicobacter pylori, babA, ABO blood groups, gastrointestinal, Iran.