| AIH | 1) Artificial Insemination Husband 2) Homologous Artificial Insemination |
|---|---|
| AIH | amelogenesis imperfecta, hypomaturation type; American Institute of Homeopathy; artificial inseminat... |
| HCD | health care delivery; heavy-chain disease; high-calorie diet; high-carbohydrate diet; homologous can... |
| HLA | histocompatibility leukocyte antigen; histocompatibility locus antigen; homologous leukocyte antibod... |
| HS | Haber syndrome; half strength; hamstring; hand surgery; Hartmann solution; head sling; healthy subje... |
| HR | Homologous recombination |
|---|---|
| hr | homologous region |
| HRF | Homologous restriction factor |
| NHEJ | Non-homologous DNA end joining |
| NHEJ | Non-homologous end joining |
| conjugated hapten | A hapten that may cause the production of antibodies when it has been covalently linked to protein. Synonym: conjugated antigen. (05 Mar 2000) |
|---|---|
| half-hapten | A substance that elicits an antigen-antibody reaction, but no precipitation. (05 Mar 2000) |
| hapten | <immunology, molecular biology> Could be considered an isolated epitope: although a hapten (by definition) has an antibody directed against it, the hapten alone will not induce an immune response if injected into an animal, it must be conjugated to a carrier (usually a protein). The hapten constitutes a single antigenic determinant, perhaps the best known example is dinitro phenol (DNP) that can be conjugated to BSA and against which antiDNP antibodies are produced (antibodies to the BSA can be adsorbed out). Because the hapten is monovalent, immune complex formation will be blocked if the soluble hapten is present as well as the hapten carrier conjugate (assuming there is more than one hapten per carrier then an immune precipitate can be formed). Competitive inhibition by the soluble small molecule is sometimes referred to as haptenic inhibition and this term has carried over into lectin mediated haemagglutination where monosaccharides are added to try to block haemagglutination: the blocking sugar defines the specificity of the lectin. (18 Nov 1997) |
| hapten inhibition of precipitation | Inhibition of precipitation that occurs when the precipitin has combined with hapten of the same specificity as the subsequently added antigen. (05 Mar 2000) |
| Forssman hapten | A glycolipid from mammalian organs. Compare: Forssman antibody, Forssman antigen. (05 Mar 2000) |
| homologous | Corresponding in structure, position, origin, etc., such as the feathers of a bird and the scales of a fish, the antigen and its specific antibody, the allelic chromosomes. Compare: analogous. Origin: Gr. Homologos = agreeing, correspondent (18 Nov 1997) |
| homologous antigen | <immunology> A homologous antigen is one which will attract and react with a specific antibody. (09 Oct 1997) |
| homologous antiserum | An antiserum in which there is complete correspondence between the content of antibodies and the antigenic material used for producing the antiserum. (05 Mar 2000) |
| homologous chromosome | <genetics> A pair of chromosomes containing the same linear gene sequences, each derived from one parent. The chromosomes tend to pair or synapse during mitosis. (14 Oct 1997) |
| homologous chromosomes | A pair of chromosomes containing the same gene sequences, each derived from one parent. (12 Dec 1998) |
| homologous desensitization | Loss of sensitivity only to the class of agonist used to desensitise the tissue. (05 Mar 2000) |
| homologous graft | <haematology> Grafts between two or more individuals allogeneic at one or more loci (usually with reference to histocompatibility loci). As opposed to autograft and xenograft. (18 Nov 1997) |
| homologous proteins | <molecular biology> Proteins that look similar and work in similar ways in different species. (09 Oct 1997) |
| homologous recombination | <molecular biology> Genetic recombination involving exchange of homologous loci. Important technique in the generation of null alleles (knockouts) in transgenic mice. (18 Nov 1997) |
| homologous series | A series of organic compounds, the succeeding members of which differ from each other by the radical CH2 (as in the fatty series). (05 Mar 2000) |
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