| PAR | participating provider; passive avoidance reaction; perennial allergic rhinitis; photosynthetically ... |
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| SAR | scatter/air ratio; seasonal allergic rhinitis; sexual attitude reassessment; slowly adapting recepto... |
| VMR | vasomotor rhinitis |
| CHR | Chronic hypertrophic rhinitis |
| PAS | 1) Periodic Acid-Schiff Stain 2) Para-Amino-Salicyclic Acid &nbs... |
| rhinitis nervosa | <chest medicine> An inflammatory response in the nasal passages to an allergic stimulus. Often includes: nasal congestion, sneezing, runny or itchy nose. (27 Sep 1997) |
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| rhinitis sicca | A form of chronic rhinitis with little or no secretion. (05 Mar 2000) |
| rhinitis, vasomotor | A form of rhinitis brought about by changes in vascular tone and permeability. The aetiology is obscure. (12 Dec 1998) |
| chronic rhinitis | A protracted sluggish inflammation of the nasal mucous membrane; in the later stages the mucous membrane with its glands may be thickened (hypertrophic rhinitis) or thinned (atrophic rhinitis). (05 Mar 2000) |
| scrofulous rhinitis | Tuberculous infection of the nasal mucous membrane. (05 Mar 2000) |
| hypertrophic rhinitis | Chronic rhinitis with permanent thickening of the mucous membrane. (05 Mar 2000) |
| necrotic rhinitis of pigs | An infection of the subcutaneous structures of the snout of swine which causes malformation of the face; it is frequently due to infection of wounds made for the insertion of metal rings to discourage or prevent the animal from rooting in the soil; Fusobacterium necrophorum plays an important role in this disease. Synonym: bullnose. (05 Mar 2000) |
| inclusion body rhinitis | A respiratory disease of pigs caused by the cytomegalovirus porcine herpesvirus 2 and characterised by rhinitis and conjunctivitis in young pigs. (05 Mar 2000) |
| Rambourg's periodic acid-chromic methenamine-silver stain | <technique> A stain for glycoproteins, used with an electron microscope, adapted from the Gomori-Jones periodic acid-methenamine-silver stain; it produces silver deposits in mature saccules of the Golgi apparatus, lysosomal vesicles, cell coat, and basement membranes. (05 Mar 2000) |
| paralysis, familial periodic | An autosomal dominant trait marked by recurring attacks of rapidly progressive flaccid paralysis. There are three types: I, associated with a fall in serum potassium levels (hypokalaemic periodic paralysis); II, associated with a rise therein (hyperkalaemic periodic paralysis, called also adynamia episodica hereditaria); and III, with normal levels (normokalaemic periodic paralysis). (12 Dec 1998) |
| Gomori-Jones periodic acid-methenamine-silver stain | <technique> A staining method using methenamine silver, periodic acid, gold chloride, haematoxylin, and eosin to delineate basement membrane, reticulin, collagen, and nuclei; used in renal histopathology. See: Rambourg's periodic acid-chromic methenamine-silver stain. (05 Mar 2000) |
| periodic | Recurring at regular intervals of time. Origin: Gr. Periodikos (18 Nov 1997) |
| periodic acid | <chemical> Periodic acid (h5io6). A strong oxidizing agent. Chemical name: Periodic acid (H5IO6) (12 Dec 1998) |
| periodic acid Schiff reaction | <technique> A histochemical technique based on periodic acid oxidation of a substance containing the 1,2-glycol grouping. It is used for staining carbohydrates as the resulting dialdehyde reacts with Schiff reagent to form a coloured product. The adjacent hydroxyl groups are oxidized to form aldehydes by periodic acid (HIO4) and these aldehyde groups react with Schiff's reagent (basic fuchsin decolourised by sulphurous acid) to give a purple colour. Acronym: PAS (18 Nov 1997) |
| periodic acid Schiff stain | <technique> A histochemical technique based on periodic acid oxidation of a substance containing the 1,2-glycol grouping. It is used for staining carbohydrates as the resulting dialdehyde reacts with Schiff reagent to form a coloured product. Substances that can be demonstrated include carbohydrates, mucins, cartilage matrix, collagen, reticulum, basement membranes, fibrin, thyroid colloid, amyloid, glomerular hyaline deposits, and a number of other secretions or tissue constituents. Also used in for staining gels on which glycoproteins have been run. See: periodic acid Schiff reaction Synonym: PAS stain. (22 Sep 2002) |