| DB | data base; date of birth; deep breath; dense body; dextran blue; diabetes, diabetic; diagonal band; ... |
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| DC | daily census; data communication; data conversion; decrease; deep compartment; Dental Corps; deoxych... |
| DCC | day care center; detected in colon cancer; dextran-coated charcoal; diameter of cylindrical collimat... |
| DEAE-D | diethylaminoethyl dextran |
| DRA | dextran-reactive antibody |
| FITC-dextran | Fluorescein-isothiocyanate dextran |
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| DEAE-Dextran | diethyl-amino-ethyl-dextran |
| A | Animal |
| LAA | Laboratory Animal Allergy |
| NAHMS | National Animal Health Monitoring System |
| animal dextran | <biochemistry> Branched polymer of D glucose (mostly _(1-4) linked, but some _(1-6) at branch points). Size range very variable, up to 10exp5 glucose units. Major short term storage polymer of animal cells and is particularly abundant in the liver and to a lesser extent in muscle. In the electron microscope glycogen has a characteristic asterisk or star appearance. (18 Nov 1997) |
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| acid dextran | The product of acid and heat treatment of dextran. (05 Mar 2000) |
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| blue dextran | High molecular weight dextran containing a blue chlorotriazine dye, Cibacron Blue; used to measure the void volumes in gel filtration columns. (05 Mar 2000) |
| deae-dextran | <chemical> Diethylaminoethyldextran. Used as a support for ion-exchange chromatography. Chemical name: Dextran, 2-(diethylamino)ethyl ether (12 Dec 1998) |
| dextran | High molecular weight polysaccharides synthesised by some micro organisms. Consist of D glucose linked by _ 1,6 bonds (and a few _ 1,3 and _ 1,4 bonds). Dextran 75 (average molecular weight 75 kD) has a colloid osmotic pressure similar to blood plasma, so dextran 75 solutions are used clinically as plasma expanders. They will also cause charge shielding and at the right concentrations induce flocculation of red cells, a trick that is used in preparing leucocyte rich plasma for white cell purification in the laboratory. Cross linked dextran is the basis for Sephadex. Commercially derived from strains of Leuconostoc mesenteroides. (18 Nov 1997) |
| dextran 110 | Dextran (average MW 110,000) available as 5% solution in water or saline solution; used as a plasma volume expander. (05 Mar 2000) |
| dextran 40 | Dextran (average MW 40,000) used as a plasma volume expander and blood flow adjuvant. (05 Mar 2000) |
| dextran 70 | Dextran (average MW 70,000) used as a plasma volume expander. (05 Mar 2000) |
| dextran 75 | Dextran (average MW 75,000) used as a plasma volume expander. (05 Mar 2000) |
| dextran sulfate | <chemical> Long-chain polymer of glucose containing 17-20% sulfur. It has been used as an anticoagulant and also has been shown to inhibit the binding of HIV-1 to CD4+ T-lymphocytes. It is commonly used as both an experimental and clinical laboratory reagent and has been investigated for use as an antiviral agent, in the treatment of hypolipidemia, and for the prevention of free radical damage, among other applications. Pharmacological action: anticoagulant, antiviral agents, indicators and reagents, plasma substitutes. Chemical name: Dextran, hydrogen sulfate (12 Dec 1998) |
| dextrin-dextran transglucosidase | A glucosyltransferase transferring 1,4-alpha-d-glucosyl residues, thus catalyzing the synthesis of dextrans (with 1,6 links between monosaccharide units) from dextrins (with 1,4 links) by glucose transfer. Synonym: dextrin-dextran transglucosidase, dextrin 6-glucosyltransferase. (05 Mar 2000) |
| iron-dextran complex | <chemical> Iron dextran. A complex of ferric oxyhydroxide with dextrans of 5000 to 7000 daltons in a viscous solution containing 50 mg/ml of iron. It is supplied as a parenteral preparation and is used as a haematinic. (goodman and gilman's the pharmacological basis of therapeutics, 8th ed, p1292) Pharmacological action: haematinics. Chemical name: Iron dextran (12 Dec 1998) |
| animal | 1. An organised living being endowed with sensation and the power of voluntary motion, and also characterised by taking its food into an internal cavity or stomach for digestion; by giving carbonic acid to the air and taking oxygen in the process of respiration; and by increasing in motive power or active aggressive force with progress to maturity. 2. One of the lower animals; a brute or beast, as distinguished from man; as, men and animals. Origin: L, fr. Anima breath, soul: cf. F. Animal. See Animate. 1. Of or relating to animals; as, animal functions. 2. Pertaining to the merely sentient part of a creature, as distinguished from the intellectual, rational, or spiritual part; as, the animal passions or appetites. 3. Consisting of the flesh of animals; as, animal food. Animal magnetism. See Magnetism and Mesmerism. Animal electricity, the electricity developed in some animals, as the electric eel, torpedo, etc. <physiology> Animal flower, the heat generated in the body of a living animal, by means of which the animal is kept at nearly a uniform temperature. Animal spirits. See Spirit. Animal kingdom, the whole class of beings endowed with animal life. It embraces several subkingdoms, and under these there are Classes, Orders, Families, Genera, Species, and sometimes intermediate groupings, all in regular subordination, but variously arranged by different writers. The following are the grand divisions, or subkingdoms, and the principal classes under them, generally recognised at the present time: - Vertebrata, including Mammalia or Mammals, Aves or Birds, Reptilia, Amphibia, Pisces or Fishes, Marsipobranchiata (Craniota); and Leptocardia (Acrania). Tunicata, including the Thaliacea, and Ascidioidea or Ascidians. Articulata or Annulosa, including Insecta, Myriapoda, Malacapoda, Arachnida, Pycnogonida, Merostomata, Crustacea (Arthropoda); and Annelida, Gehyrea (Anarthropoda). Helminthes or Vermes, including Rotifera, Chaetognatha, Nematoidea, Acanthocephala, Nemertina, Turbellaria, Trematoda, Cestoidea, Mesozea. Molluscoidea, including Brachiopoda and Bryozoa. Mollusca, including Cephalopoda, Gastropoda, Pteropoda, Scaphopoda, Lamellibranchiata or Acephala. Echinodermata, including Holothurioidea, Echinoidea, Asterioidea, Ophiuroidea, and Crinoidea. Coelenterata, including Anthozoa or Polyps, Ctenophora, and Hydrozoa or Acalephs. Spongiozoa or Porifera, including the sponges. Protozoa, including Infusoria and Rhizopoda. For definitions, see these names in the Vocabulary. Origin: Cf. F. Animal. Source: Websters Dictionary (01 Mar 1998) |
| animal black | Charcoal produced by incomplete combustion of animal tissues, especially bone. Synonym: animal black, bone black, bone charcoal. (05 Mar 2000) |
| animal cell culture | <cell culture> Mammalian cells are fragile and harder to grow than other cell types, but their large-scale culturing is an economic boon because it allows for the production of proteins that are otherwise difficult or expensive or unethical to extract from living organisms. The cells are immobilised on a substrate and then perfused with culture medium, The cells are in a free suspension which is very gently mixed and aerated. (12 Nov 1997) |
| animal cell immobilisation | <cell culture> Animal cells are widely used in biotechnology to produce genetically engineered proteins. However, they are more fragile than bacterial cells, and immobilising the cell facilitates the fermentation process. Many animal cells stick down flat on a suitable surface, hugging it as they would hug other cells or connective matrices in the body. If grown on suitable plastic surfaces, on glass or many ceramics, these cells will stick to them. In this way, they are easier to grow. (14 Nov 1997) |
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