Definition that contains immune system
- aids a serious (often fatal) disease of the immune system transmitted through blood products especially by sexual contact or contaminated needles
- rheumatism a chronic autoimmune disease with inflammation of the joints and marked deformities; something (possibly a virus) triggers an attack on the synovium by the immune system, which releases cytokines that stimulate an inflammatory reaction that can lead to the destruction of all components of the joint
- histamine amine formed from histidine that stimulates gastric secretions and dilates blood vessels; released by the human immune system during allergic reactions
- allograft tissue or organ transplanted from a donor of the same species but different genetic makeup; recipient's immune system must be suppressed to prevent rejection of the graft
- incompatibility (immunology) the degree to which the body's immune system will try to reject foreign material (as transfused blood or transplanted tissue)
- cytokine any of various protein molecules secreted by cells of the immune system that serve to regulate the immune system
- immunotherapy therapy designed to produce immunity to a disease or to enhance resistance by the immune system
- lymphokine a cytokine secreted by helper T cells in response to stimulation by antigens and that acts on other cells of the immune system (as by activating macrophages)
- homograft tissue or organ transplanted from a donor of the same species but different genetic makeup; recipient's immune system must be suppressed to prevent rejection of the graft
- pneumocytosis pneumonia occurring in infants or in persons with impaired immune systems (as AIDS victims)