DETECTION OF HELICOBACTER PYLORI IN GASTRIC JUICE BY NESTED PCR

Abstract

Helicobacter pylori (H. pylori) is one of the common bacteria that causes digestive tract infections. There are many methods to diagnose H. pylori infection depending on the specific conditions of each heath facilities. Invasive methods used to diagnose H.pylori include urease test, bacterial culture, bacterial nucleus determination and histopathological diagnosis. Usually, the diagnosis by PCR as well as the Clotest tests undergo a biopsy of a gastric mucosal sample, which more or less causes stomach damage and causes pain for the patient. Meanwhile, PCR method used to detecte H.pylori from faecal samples and urine samples are non-invasive tests but the rate of false-negative is high due to the ability of receiving H. pylori from these specimens to be low. The aim of this study is to set up a Nested PCR reaction to detect H. pylori directly from gastric juice to reduce invasion compared to H.pylori detectition methods from gastric tissue. Our this finding shows that this Nested PCR reaction is highly sensitive, allowing detection of H.pylori from the gastric juice sample.