| anisotropy | <radiobiology> Term used to describe a medium whose characteristic properties vary with direction of travel through the medium. (for example, velocity of light transmission, conductivity of heat or electric current, compressibility, etc.) Annihilation of magnetic field & Anode (09 Oct 1997) |
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| anistreplase | <chemical> An acylated inactive complex of streptokinase and human lysine-plasminogen. After injection, the acyl group is slowly hydrolyzed, producing an activator that converts plasminogen to plasmin, thereby initiating fibrinolysis. Its half-life is about 90 minutes compared to 5 minutes for tpa (tissue plasminogen activator), 16 minutes for urokinase and 23 minutes for streptokinase. If treatment is initiated within 3 hours of onset of symptoms for acute myocardial infarction, the drug preserves myocardial tissue and left ventricular function and increases coronary artery patency. Bleeding complications are similar to other thrombolytic agents. Pharmacological action: fibrinolytic agent, plasminogen activator. Chemical name: Anistreplase (12 Dec 1998) |
| Anitschkow | Nikolai, Russian pathologist, 1885-1964. See: Anitschkow cell, Anitschkow myocyte. (05 Mar 2000) |
| Anitschkow cell | A large mononuclear cell found in connective tissue of the heart wall in inflammatory conditions, especially in the Aschoff body. The ovoid nucleus contains a central chromatin mass appearing as a wavy bar in longitudinal section. Synonym: Anitschkow cell, Anitschkow myocyte, caterpillar cell. (05 Mar 2000) |
| Anitschkow myocyte | A large mononuclear cell found in connective tissue of the heart wall in inflammatory conditions, especially in the Aschoff body. The ovoid nucleus contains a central chromatin mass appearing as a wavy bar in longitudinal section. Synonym: Anitschkow cell, Anitschkow myocyte, caterpillar cell. (05 Mar 2000) |