| B12 | cyanocobalamin |
|---|---|
| UBBC | unsaturated vitamin B12 binding capacity |
| CCF | 1) Carotid(Carotico-) Cavernous Fistula 2) Crystal-induced Chemotactic Fa... |
| CCF | cancer coagulation factor; cardiolipin complement fixation; carotid-cavernous fistula; centrifuged c... |
| CCL | carcinoma cell line; certified cell line; Charcot-Leyden crystal; continuing care level; critical ca... |
| UBBC | Unsaturated vitamin B12 binding capacity |
|---|---|
| VB12 | Vitamin B12 |
| CLC | Charcot-Leyden Crystal |
| CV | Crystal Violet |
| LCD | Liquid Crystal Display |
| vitamin B12 | <biochemistry> Member of the water soluble B vitamin group, important in the proper function of the nervous system and important in proper carbohydrate, protein and fat metabolism. (27 Sep 1997) |
|---|---|
| vitamin B12 absorption test | <investigation> This test measures the amount of vitamin B12 in the urine after ingesting a dose of B12. This test evaluates vitamin B12 absorption. The cells in the stomach produce a substance known as intrinsic factor. This substance combines with B12 to allow absorption in the distal ileum. The patient is given a small dose of radioactive B12 which can then be detected in the patients urine. Pernicious anaemia is the clinical result of B12 deficiency. Conditions that can result in an abnormal Schilling test include: deficiency of intrinsic factor, malabsorption or the development of an antibody to intrinsic factor. The Schilling test can be performed with or without administration of intrinsic factor to determine what the underlying cause for pernicious anaemia. Laxative use, renal insufficiency and hypothyroidism can all interfere with the results of this test. (27 Sep 1997) |
| vitamin B12 deficiency | A form of anaemia (low red blood cell counts) that results when the bone marrow fails to produce adequate numbers of red blood cells due to a deficiency in vitamin B12. Intrinsic factor, necessary for normal B12 absorption, may be the underlying cause for B12 deficiency if is not produced in the gastric glands (in the stomach). (27 Sep 1997) |
| vitamin B12 neuropathy | A subacute or chronic disorder of the spinal cord, such as that occurring in certain patients with vitamin B12 deficiency, characterised by a slight to moderate degree of gliosis in association with spongiform degeneration of the posterior and lateral columns. Synonym: combined sclerosis, combined system disease, funicular myelitis, Putnam-Dana syndrome, vitamin B12 neuropathy. (05 Mar 2000) |
| vitamin B12 with intrinsic factor concentrate | A combination of vitamin B12 with suitable preparations of the mucosa of the stomach or intestine of domestic animals used for food by humans. (05 Mar 2000) |
| coenzyme B12 | <biochemistry> A coenzyme derived from cobalamine which is involved in carbon skeletal rearrangements. It is the only biomolecule known that has a carbon-metal bond. (09 Oct 1997) |
| pseudovitamin B12 | <biochemistry> Cobamide cyanide phosphate, 3'-ester with 7-alpha-d-ribofuranosyladenine, inner salt; vitamin B12 with adenine replacing dimethylbenzimidazole; one of several substances produced during anaerobic fermentation by certain organisms in bovine rumen contents; it is chemically closely similar to vitamin B12 (cyanocobalamin) but without, in humans, the physiologic action of the vitamin. (05 Mar 2000) |
| chiral crystal | An enantiomorphic, dyssymmetric, optically active crystal. (05 Mar 2000) |
| phase, crystal | <microscopy> A specific crystal structure, usually given a name. (05 Aug 1998) |
| clathrate crystal | Lattice-like arrangement of molecules of one substance surrounding molecules of another substance. (05 Mar 2000) |
| crystal | A solid of regular shape and, for a given compound, characteristic angles, formed when an element or compound solidifies slowly enough, as a result either of freezing from the liquid form or of precipitating out of solution, to allow the individual molecules to take up regular positions with respect to one another. Origin: G. Krystallos, clear ice, crystal (05 Mar 2000) |
| crystal, birefringent | <microscopy> A crystalline substance which is anisotropic with respect to the velocity of light. (05 Aug 1998) |
| crystal rash | A noninflammatory form of miliaria in which the vesicles are filled with clear fluid. Synonym: crystal rash, sudamina. (05 Mar 2000) |
| crystal structure | <chemistry> The configuration in which atoms are arranged in a material. These arrangements have a direct effect on the physical properties of the material. These arrangements commonly take the form of cubes, rectangular solids, hexagonal solids. Etc. (05 Aug 1998) |
| crystal violet | Hexamethylpararosanilin chloride;a compound that has been used in the external treatment of burns, wounds, and fungal infections of skin and mucous membranes, and internally for pinworm and certain fluke infections; used also as a stain for chromatin, amyloid, platelets in blood, fibrin, and neuroglia, and to differentiate among bacteria. Synonym: methylrosaniline chloride. (05 Mar 2000) |
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