Helicobacter pylori infection and gastric mucosal epithelial cell apoptosis.

NF-κB: nuclear factor κB; TNF-α: tumor necrosis factor α; DD: death domain; FADD: Fas-associated death domain; FasL: Fas receptor ligand; TNFR: TNF receptor; TRADD: TNFR-associated death domain; TRAF: TNFR-associated factor; COX: cyclooxygenase; PG: prostaglandin; iNOS: inducible nitric oxide synthase; NO: nitric oxide; MDR-1: multiple drug resistance gene; IL: interleukin; EGF: epithelial growth factor; IGF: insulin-like growth factor; HGF: hepatocyte growth factor; PI-3 kinase: phosphoinositol-3 kinase, RIP: receptor interactive protein, SOD: superoxide dismutase, MTP: mitochondrial transition pore, Apaf-1: apoptotic protease activation factor, MHC: major histocompatibility complex, TGF-α: transforming growth factor α, ROS: reactive oxygen species, MAPK: mitogen-activated protein kinase, NSAID: non-steroidal anti-inflammatory drug.