Frequency of virulence factor of Helicobacter pylori and IL17 gene expression related with gastric ulcer patient

Abstract

Helicobacter pylori (H. pylori) is a spiral microorganism considered as a gram-negative, this organism colonize the microenvironment of gastric for more than 50% of world population. The present study involved 78 patients, 39 of them had a clinical diagnosis of gastric ulcer and the remaining 39 had a clinical diagnosis of gastric cancer. Biopsies were taken from December 2018” until the end of July 2019 and the patients were between 25 and 60 years old. The initial diagnosis of H. pylori was performed by the rapid urease test (RUT). The samples also have been tested for IL-17 gene expression by immunihistochemical techniques. All the samples have been investigated for UreA gene, and the results showed the H.pylori positive in 32 (82%) samples and it was negative in 7 (18%) samples in gastric cancer, whereas the gastric ulcer group showed 29 (75%) negative samples and 10 (25%) positive for H.pylori. Furthermore, the sequencing result of gastric cancer group showed 95% compatibility, while gastric ulcer patients showed 98% compatibility with NCBI. The phylogenetic analysis exhibited the genetic dimension among the samples and the world was 96% and 99% compatibility values.