background: the hbv-x (hbx) protein is believed to contribute to the development of hcc. however, the molecular mechanisms involved in hbx-mediated hepatocarcinogenesis remain obscure. in this study, the effect of hepatitis b virus x gene and its protein product hbxag on expression of p53 gene in hep g2 cell line was investigated. methods: viral dna extracted from hbv-positive serum and hbx gen...

purpose: the aim of this study was to investigate the relations of locus of control, rumination, and worry with depression and anxiety in a sample of depressed and anxious patients. a second purpose of the study was to examine the mediating role of rumination and worry on the relationship between locus of control with depression and anxiety. method: one hundred and twelve patients with major de...

background: toxoplasma gondii is an obligate intracellular parasite that infects all mammalian cells. several antigens such as excreted/secreted antigens have been identified as a potential vaccine candidate. objective: to determine how excreted/secreted antigens from peritoneal exudates of infected mice (mesa) stimulate cell-mediated immune responses and induce protective immunity against toxo...