| D006968 |
Hypersensitivity, Delayed |
An increased reactivity to specific antigens mediated not by antibodies but by sensitized T CELLS. |
Hypersensitivity, Tuberculin-Type,Hypersensitivity, Type IV,Tuberculin-Type Hypersensitivity,Type IV Hypersensitivity,Delayed Hypersensitivity,Delayed Hypersensitivities,Hypersensitivity, Tuberculin Type,Tuberculin Type Hypersensitivity,Tuberculin-Type Hypersensitivities,Type IV Hypersensitivities |
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| D007108 |
Immune Tolerance |
The specific failure of a normally responsive individual to make an immune response to a known antigen. It results from previous contact with the antigen by an immunologically immature individual (fetus or neonate) or by an adult exposed to extreme high-dose or low-dose antigen, or by exposure to radiation, antimetabolites, antilymphocytic serum, etc. |
Immunosuppression (Physiology),Immunosuppressions (Physiology),Tolerance, Immune |
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| D007156 |
Immunologic Memory |
The altered state of immunologic responsiveness resulting from initial contact with antigen, which enables the individual to produce antibodies more rapidly and in greater quantity in response to secondary antigenic stimulus. |
Immune Memory,Immunological Memory,Memory, Immunologic,Immune Memories,Immunologic Memories,Immunological Memories,Memory, Immune,Memory, Immunological |
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| D007456 |
Iodine Isotopes |
Stable iodine atoms that have the same atomic number as the element iodine, but differ in atomic weight. I-127 is the only naturally occurring stable iodine isotope. |
Isotopes, Iodine |
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| D007959 |
Lymphocyte Culture Test, Mixed |
Measure of histocompatibility at the HL-A locus. Peripheral blood lymphocytes from two individuals are mixed together in tissue culture for several days. Lymphocytes from incompatible individuals will stimulate each other to proliferate significantly (measured by tritiated thymidine uptake) whereas those from compatible individuals will not. In the one-way MLC test, the lymphocytes from one of the individuals are inactivated (usually by treatment with MITOMYCIN or radiation) thereby allowing only the untreated remaining population of cells to proliferate in response to foreign histocompatibility antigens. |
Leukocyte Culture Test, Mixed,Mixed Lymphocyte Culture Test,Mixed Lymphocyte Reaction,Mixed Leukocyte Culture Test,Mixed Leukocyte Reaction,Leukocyte Reaction, Mixed,Leukocyte Reactions, Mixed,Lymphocyte Reaction, Mixed,Lymphocyte Reactions, Mixed,Mixed Leukocyte Reactions,Mixed Lymphocyte Reactions |
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| D008198 |
Lymph Nodes |
They are oval or bean shaped bodies (1 - 30 mm in diameter) located along the lymphatic system. |
Lymph Node,Node, Lymph,Nodes, Lymph |
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| D008212 |
Lymphocyte Depletion |
Immunosuppression by reduction of circulating lymphocytes or by T-cell depletion of bone marrow. The former may be accomplished in vivo by thoracic duct drainage or administration of antilymphocyte serum. The latter is performed ex vivo on bone marrow before its transplantation. |
Depletion, Lymphocyte |
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| D008214 |
Lymphocytes |
White blood cells formed in the body's lymphoid tissue. The nucleus is round or ovoid with coarse, irregularly clumped chromatin while the cytoplasm is typically pale blue with azurophilic (if any) granules. Most lymphocytes can be classified as either T or B (with subpopulations of each), or NATURAL KILLER CELLS. |
Lymphoid Cells,Cell, Lymphoid,Cells, Lymphoid,Lymphocyte,Lymphoid Cell |
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| D008231 |
Lymphopenia |
Reduction in the number of lymphocytes. |
Lymphocytopenia,Lymphocytopenias,Lymphopenias |
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| D003601 |
Cytotoxicity Tests, Immunologic |
The demonstration of the cytotoxic effect on a target cell of a lymphocyte, a mediator released by a sensitized lymphocyte, an antibody, or complement. |
AHG-CDC Tests,Anti-Human Globulin Complement-Dependent Cytotoxicity Tests,Microcytotoxicity Tests,Anti Human Globulin Complement Dependent Cytotoxicity Tests,Anti-Human Globulin Complement-Dependent Cytotoxicity Test,Antiglobulin-Augmented Lymphocytotoxicity Test,Antiglobulin-Augmented Lymphocytotoxicity Tests,Cytotoxicity Test, Immunologic,Cytotoxicity Tests, Anti-Human Globulin Complement-Dependent,Cytotoxicity Tests, Immunological,Immunologic Cytotoxicity Test,Immunologic Cytotoxicity Tests,Lymphocytotoxicity Test, Antiglobulin-Augmented,Lymphocytotoxicity Tests, Antiglobulin-Augmented,Microcytotoxicity Test,AHG CDC Tests,AHG-CDC Test,Anti Human Globulin Complement Dependent Cytotoxicity Test,Antiglobulin Augmented Lymphocytotoxicity Test,Antiglobulin Augmented Lymphocytotoxicity Tests,Cytotoxicity Test, Immunological,Cytotoxicity Tests, Anti Human Globulin Complement Dependent,Immunological Cytotoxicity Test,Immunological Cytotoxicity Tests,Lymphocytotoxicity Test, Antiglobulin Augmented,Lymphocytotoxicity Tests, Antiglobulin Augmented |
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