| NYHA | New York Heart Association Heart Disease¿¡ ´ëÇÑ Functional Classification &nbs... |
|---|---|
| BGC | basal ganglion calcification; blood group class |
| class, classif | classification |
| IV | ichthyosis vulgaris; initial visit; interventricular; intervertebral; intravaginal; intravascular; i... |
| NYHAFC | New York Heart Association Functional Class |
| CIITA | Class II TransActivator |
|---|---|
| FC | Functional Class |
| ICC | Intra Class Correlation Coefficient |
| LCA | Latent Class Analysis |
| MHC II | MHC Class II |
| immunoglobulin class switching | Gene rearrangement of the b-lymphocyte which results in a substitution in the type of heavy-chain constant region that is expressed. This allows the effector response to change while the antigen binding specificity (variable region) remains the same. The majority of class switching occurs by a DNA recombination event but it also can take place at the level of RNA processing. (12 Dec 1998) |
|---|---|
| antigenic switching | <immunology> The process by which a pathogenic microbe's genetic structure is altered tochange its surface antigens inorder to avoid being detected by the host's immune system. (09 Oct 1997) |
| magnetic switching | <radiobiology> The use as switches of saturable inductors for producing high power pulses without electrical arcs. This is a principal technology for extending single-shot accelerators in light-ion-beam-driven inertial confinement fusion to repetitively pulsed devices for possible reactors. Three terawatt, 200 KJ magnetic switches have been developed for fusion drivers at Sandia National Laboratories. (Info from the 1985 OSTI Glossary of Fusion Energy, may be out of date.) (09 Oct 1997) |
| switching | 1. Making a shift or exchange. 2. The movement of a defined region of DNA within a genome. Class switching, a change in the expression of the C region of an immunoglobulin heavy chain. (05 Mar 2000) |
| switching site | The break point in a DNA sequence at which a gene segment unites with another gene segment, as in the production of the immunoglobulins. (05 Mar 2000) |
| isotype switching | <immunology> The switch of immunoglobulin isotype that occurs, for example: as the immune response progresses (IgM to IgG). The switch from IgM to IgG involves only the constant region of the heavy chains (from _ to _), the light chain and variable regions of the heavy chain remaining the same and involves the switch regions, upstream (on the 5'side) of the constant region genes, at which recombination occurs. Similarly, IgM and IgD with the same variable region of the heavy chain, but with different heavy chain constant regions (_ and _), seem to coexist on the surface of some lymphocytes. (18 Nov 1997) |
| age-class | <ecology> A group of individuals of a species that have the same age. (09 Oct 1997) |
| malocclusion, angle class I | Malocclusion in which the mandible and maxilla are anteroposteriorly normal as reflected by the relationship of the first permanent molar (i.e., in neutroclusion), but in which individual teeth are abnormally related to each other. (12 Dec 1998) |
| malocclusion, angle class II | Malocclusion in which the mandible is posterior to the maxilla as reflected by the relationship of the first permanent molar (distoclusion). (12 Dec 1998) |
| malocclusion, angle class III | Malocclusion in which the mandible is anterior to the maxilla as reflected by the first relationship of the first permanent molar (mesioclusion). (12 Dec 1998) |
| genes, MHC class I | Genetic loci in the vertebrate major histocompatibility complex which encode polymorphic characteristics not related to immune responsiveness or complement activity, e.g., b loci (chicken), dla (dog), gpla (guinea pig), h-2 (mouse), rt-1 (rat), HLA-a, -b, and -c class I genes of man. (12 Dec 1998) |
| genes, MHC class II | Genetic loci in the vertebrate major histocompatibility complex that encode polymorphic products which control the immune response to specific antigens. The genes are found in the HLA-d region in humans and in the I region in mice. (12 Dec 1998) |
| MHC class II protein | <protein> The antigen-presenting molecule found primarily on macrophages and B lymphocytes. (09 Oct 1997) |
| MHC class I protein | <protein> The antigen-presenting molecule found on all nucleated vertebrate cells. (09 Oct 1997) |
| class | <biology> A taxonomic classification between division or phylum and order. (09 Oct 1997) |
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