Objective To investigate the relationship between the Helicobacter pylori(HP) infection and the expression of SRY related transcription factor 2(SOX2) whichwas similar to that of box HMG and cyclin Dl(CyclinDl) protein expression.Methods Collect from January 2014 to January 2015,in Hebei North University First Affiliated Hospital by gastroscopy and pathology diagnosis of gastric cancer specimens of 50 cases,according to whether HP infection,they were divided into HP positive group(36 cases),HP negative grou...