| virus blockade | The interference of one virus by another, either attenuated or unrelated. (05 Mar 2000) |
|---|
| adrenergic blockade | Selective inhibition by a drug of the responses of effector cells to adrenergic sympathetic nerve impulses (sympatholytic) and to epinephrine and related amines (adrenolytic). (05 Mar 2000) |
|---|---|
| blockade | 1. Intravenous injection of large amounts of colloidal dyes or other substances whereby the reaction of the reticuloendothelial cells to other influences (e.g., by phagocytosis) is temporarily prevented. 2. Arrest of peripheral nerve conduction or transmission at autonomic synaptic junctions, autonomic receptor sites, or myoneural junctions by a drug. (05 Mar 2000) |
| ganglionic blockade | Inhibition of nerve impulse transmission at autonomic ganglionic synapses by drugs such as nicotine or hexamethonium. (05 Mar 2000) |
| cholinergic blockade | Inhibition by a drug of nerve impulse transmission at autonomic ganglionic synapses (ganglionic blockade), at postganglionic parasympathetic effector cells (e.g., by atropine), and at myoneural junctions (myoneural blockade), the inhibition of a cholinergic agent. (05 Mar 2000) |
| myoneural blockade | Inhibition of nerve impulse transmission at myoneural junctions by a drug such as curare. (05 Mar 2000) |
| narcotic blockade | The use of drugs to inhibit the effects of narcotic substances, as with naloxone. (05 Mar 2000) |
| neuromuscular blockade | The intentional interruption of transmission at the neuromuscular junction by external agents, usually neuromuscular blocking agents. It is distinguished from nerve block in which nerve conduction is interrupted rather than neuromuscular transmission. Neuromuscular blockade is commonly used to produce muscle relaxation as an adjunct to anaesthesia during surgery and other medical procedures. It is also often used as an experimental manipulation in basic research. It is not strictly speaking anaesthesia but is grouped here with anaesthetic techniques. The failure of neuromuscular transmission as a result of pathological processes is not included here. (12 Dec 1998) |
| sympathetic blockade | Interruption of transmission in sympathetic ganglia or conduction of impulses in pre-or postganglionic sympathetic nerve fibres. (05 Mar 2000) |
| bovine virus diarrhoea virus | A virus of the genus Pestivirus, in the family Togaviridae, causing bovine virus diarrhoea; New York, Oregon, and Indiana strains of the virus are recognised. Synonym: mucosal disease virus. (05 Mar 2000) |
| abelson leukaemia virus | A defective murine leukaemia virus capable of transforming lymphoid cells and producing a rapidly progressing lymphoid leukaemia after superinfection with friend, moloney, or rauscher virus. (12 Dec 1998) |
| Abelson murine leukaemia virus | A retrovirus belonging to the Type C retrovirus group subfamily (family Oncovirinae) which is associated with leukaemia and produces in vitro transformation of mouse cells. (05 Mar 2000) |
| adeno-associated virus | <virology> A genus of viruses in the family Parvoviridae which are all defective viruses (unable to replicate by themselves) and depend on the co-infection of their host cell by other, nondefective viruses to help them replicate. (09 Oct 1997) |
| adenoidal-pharyngeal-conjunctival virus | <virology> An icosahedral (20-sided) virus that contains DNA, there are over 40 different adenovirus varieties, some of which cause the common cold. (10 May 1997) |
| adenosatellite virus | <virology> A genus of viruses in the family Parvoviridae which are all defective viruses (unable to replicate by themselves) and depend on the co-infection of their host cell by other, nondefective viruses to help them replicate. (09 Oct 1997) |
| african horse sickness virus | A species of orbivirus that causes disease in horses, mules, and donkeys. (12 Dec 1998) |