| IAR | immediate asthma reaction; inhibitory anal reflex; iodine-azide reaction |
|---|---|
| IDLH | immediate danger to life and health |
| IEA | immediate early antigen; immunoelectroadsorption; immunoelectrophoretic analysis; infectious equine ... |
| IEG | immediate early gene |
| IGR | immediate generalized reaction; integrated gastrin response |
| hypersensitivity, immediate | Hypersensitivity reactions which occur within minutes of exposure to challenging antigen due to the release of histamine which follows the antigen-antibody reaction and causes smooth muscle contraction and increased vascular permeability. (12 Dec 1998) |
|---|---|
| sparing action | The manner in which a nonessential nutritive component, by its presence in the diet, lowers the dietary requirement for an essential component; thus, nonessential l-cysteine spares essential l-methionine and nonessential l-tyrosine spares essential l-phenylalanine. Synonym: sparing phenomenon. (05 Mar 2000) |
| specific action | The action of a drug or a method of treatment which has a direct and especially curative effect upon a disease, e.g., the action of vitamin B12 in pernicious anaemia. (05 Mar 2000) |
| specific dynamic action | The increase of heat production caused by the ingestion of food, especially of protein. (05 Mar 2000) |
| delayed-action preparations | Dosage forms of a drug that act over a period of time. (12 Dec 1998) |
| denture, complete, immediate | A complete denture constructed for replacement of natural teeth immediately after their removal. It does not fit the mouth perfectly and is intended only for functional and cosmetic purposes during the healing process after total extraction. It is to be replaced by the fitted permanent denture. (12 Dec 1998) |
| denture, partial, immediate | A partial denture constructed before the teeth it replaces are removed. It is then inserted immediately after the removal of the natural teeth for functional and cosmetic reasons during the healing process. It is to be replaced later by the fitted partial denture. (12 Dec 1998) |
| immediate | 1. Not separated in respect to place by anything intervening; proximate; close; as, immediate contact. "You are the most immediate to our throne." (Shak) 2. Not deferred by an interval of time; present; instant. "Assemble we immediate council." "Death . . . Not yet inflicted, as he feared, By some immediate stroke." (Milton) 3. Acting with nothing interposed or between, or without the intervention of another object as a cause, means, or agency; acting, perceived, or produced, directly; as, an immediate cause. "The immediate knowledge of the past is therefore impossible." (Sir. W. <surgery> Hamilton) Immediate amputation, an amputation performed within the first few hours after an injury, and before the the effects of the shock have passed away. Synonym: Proximate, close, direct, next. Origin: F. Immediat. See In- not, and Mediate. Source: Websters Dictionary (01 Mar 1998) |
| immediate allergy | A type I allergic reaction; so called because in a sensitised subject the reaction becomes evident usually within minutes after contact with the allergen (antigen), reaches its peak within an hour or so, then rapidly recedes. See: immediate reaction, anaphylaxis. Compare: delayed allergy. (05 Mar 2000) |
| immediate amputation | Amputation necessitated by irreparable injury to the limb, performed within twelve hours after the injury. (05 Mar 2000) |
| immediate contagion | Direct contagion occurring as the result of actual contact with the sick. (05 Mar 2000) |
| immediate denture | A complete or partial denture constructed for insertion immediately following the removal of natural teeth. Synonym: immediate insertion denture. (05 Mar 2000) |
| immediate early gene | Class of genes whose expression is low or undetectable in quiescent cells, but whose transcription is activated within minutes after extracellular stimulation such as addition of a growth factor. C fos and c myc proto-oncogenes were among the first IEG's to be identified. Many IEG's encode transcription factors and therefore have a regulatory function. (18 Nov 1997) |
| immediate-early proteins | Proteins that are coded by immediate-early genes, in the absence of de novo protein synthesis. The term was originally used exclusively for viral regulatory proteins that were synthesised just after viral integration into the host cell. It is also used to describe cellular proteins which are synthesised immediately after the resting cell is stimulated by extracellular signals. (12 Dec 1998) |
| immediate flap | A flap raised completely and transferred at the same stage. Synonym: immediate flap. (05 Mar 2000) |