| IDA | 1) Imino-Diacetic Acid 2) Iron Deficiency Anemia &nb... |
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| APH | alcohol-positive history; alternative pathway hemolysis; aminoglycoside phosphotransferase; antepart... |
| HELLP | hemolysis, elevated liver enzymes, and low platelet count [syndrome] |
| HEP | hemolysis end point; hepatoerythropoietic porphyria; high egg passage [virus]; high-energy phosphate... |
| KHC | kinetic hemolysis curve |
| gamma cell of pancreas | A cell of the pancreatic islets of the guinea pig. Synonym: gamma cell of pancreas. Synonym: parafollicular cells. (05 Mar 2000) |
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| gamma crystallin | The least rapidly mobile form of crystallin on electrophoresis. (05 Mar 2000) |
| gamma-cyanoaminobutyrate synthase | <enzyme> Homocystine + 2cn- yields gamma-cyanobutyric acid + scn-+ homocysteine; pyridoxal-5-phosphate dependent Registry number: EC 4.- (26 Jun 1999) |
| gamma-cystathionase | <enzyme> A multifunctional pyridoxal phosphate enzyme. In the final step in the biosynthesis of cysteine it catalyses the cleavage of cystathionine to yield cysteine, ammonia, and 2-ketobutyrate. Chemical name: L-Cystathionine cysteine-lyase (deaminating) Registry number: EC 4.4.1.1 (12 Dec 1998) |
| gamma efferent | The thin axon of a gamma motor neuron innervating the intrafusal muscle fibres of a muscle spindle. (05 Mar 2000) |
| gamma emission | <physics> Nuclear decay process whereby the nucleus goes from an excited state to a more stable state by emitting a gamma ray. See: gamma ray. (09 Oct 1997) |
| gamma encephalography | Imaging of the encephalon by the administration of small amounts of gamma-emitting radionuclides; commonly called a brain scan; superseded by computed tomography and magnetic resonance imaging. (05 Mar 2000) |
| gamma-endorphin | <chemical> An endogenous opioid peptide derived from the pro-opiomelanocortin precursor peptide. It differs from alpha-endorphin by one amino acid. Chemical name: gamma-Endorphin (12 Dec 1998) |
| gamma fibres | Nerve fibre's that have a conduction rate of about 20 m/sec. See: gamma efferent. (05 Mar 2000) |
| gamma globulin | <immunology> A non-specific immunoglobulin (antibody) administered for the purpose of passive immunity. A common example is hepatitis A prophylaxis. (27 Sep 1997) |
| gamma-globulins | Serum globulins that migrate in the gamma region on electrophoresis. At one time, gamma-globulins came to be used as a synonym for immunoglobulins since most immunoglobulins are gamma globulins. But since some immunoglobulins exhibit an alpha or beta electrophoretic mobility, that usage is in decline. (12 Dec 1998) |
| gamma-glutamyl carboxylase | <enzyme> An enzyme that catalyses the formation of gamma-carboxyglutamyl residues in many proteins, several appearing in the blood clotting cascade. (05 Mar 2000) |
| gamma-glutamyl cycle | A proposed pathway for the glutathione-dependent transport of certain amino acids (most notably l-cystine, l-methionine, and l-glutamine) and dipeptides into certain cells; this cycle requires the formation of gamma-glutamyl amino acids and gamma-glutamyl dipeptides as well as a protein for the translocation of these di-and triisopeptides into the cells. (05 Mar 2000) |
| gamma-glutamylcyclotransferase | <enzyme> An enzyme that catalyses the synthesis of pyroglutamate from a gamma-glutamyl-amino acid, also releasing the free amino acid. The enzyme acts on derivatives of glutamate, 2-aminobutyrate, alanine and glycine. The enzyme has been proposed to have a role in a gamma-glutamyl cycle for amino acid transport into cells in the intestines. Chemical name: (5-L-Glutamyl)-L-amino-acid 5-glutamyltransferase (cyclizing) Registry number: EC 2.3.2.4 (12 Dec 1998) |
| gamma-glutamylcysteine | A necessary precursor in the biosynthesis of glutathione; contains an isopeptide rather than a eupeptide bond. Gamma-glutamylcysteine synthetase, an enzyme that catalyses the first step in glutathione biosynthesis, reacting l-glutamate, l-cysteine, and ATP to form gamma-glutamylcysteine, ADP, and orthophosphate; inhibited by thiols such as glutathione. (05 Mar 2000) |