Hosseini M Eshagh, Oghalaie A, Habibi G, Nahvijoo A, Hosseini Z M, Tashakoripoor M, Mohammadi MIndian Journal of Medical Microbiology 2010 28(1):40-44Background: Helicobacter pylori (Hp) is a bacterium recognised as a main causative agent for the development of chronic active gastritis, peptic ulcer disease, gastric adenocarcinoma and primary gastric lymphoma. Objective: Determination of the levels of IFN-γ (pro-inflammatory) and IL-4 (anti inflammatory) cytokine expression as indicators of Th1 and Th2 immune responses in gastric cancer (GC) and non gastric cancer (Non GC) dyspeptic patients by gene specific RT-PCR. Materials and Methods: Biopsy specimens were collected from three groups of gastric cancer (GC=18), non ulcer dyspepsia (NUD = 38) and peptic ulcer patients (PU…

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