| PRNT | Plaque Reduction Neutrolization Test |
|---|---|
| AP | accessory pathway; accounts payable; acid phosphatase; acinar parenchyma; action potential; active p... |
| LPF | leukocytosis-promoting factor; leukopenia factor; lipopolysaccharide factor; localized plaque format... |
| PFC | pair-fed control [mice]; patient-focused care; pelvic flexion contracture; perfluorocarbon; pericard... |
| PFU | plaque-forming unit; pock-forming unit |
| PFU | Plaque Forming Unit |
|---|---|
| LP | Large plaque |
| PI | Plaque |
| PFC | Plaque Forming Cells |
| P1I | Plaque Index |
| small plaque parapsoriasis | See: parapsoriasis en plaque. Synonym: small plaque parapsoriasis. (05 Mar 2000) |
|---|---|
| parapsoriasis | The term applied to a group of relatively uncommon inflammatory, maculopapular, scaly eruptions of unknown aetiology and resistant to conventional treatment. Eruptions are both psoriatic and lichenoid in appearance, but the diseases are distinct from psoriasis, lichen planus, or other recognised dermatoses. Proposed nomenclature divides parapsoriasis into two distinct subgroups, pityriasis lichenoides and parapsoriasis en plaques (small- and large-plaque parapsoriasis). (12 Dec 1998) |
| parapsoriasis guttata | A subgroup of parapsoriasis itself divided into acute and chronic forms. The acute form is characterised by the abrupt onset of a generalised, reddish-brown, maculopapular eruption. Lesions may be vesicular, haemorrhagic, crusted, or necrotic. Histologically the disease is characterised by epidermal necrolysis. The chronic form shows milder skin changes with necrosis. An important variant of the chronic form is lymphomatoid papulosis. (12 Dec 1998) |
| parapsoriasis lichenoides | A rare condition that simulates chronic radiodermatitis in appearance; may eventuate as mycosis fungoides. Synonym: parakeratosis variegata, parapsoriasis lichenoides. Poikiloderma of Civatte, reticulated pigmentation and telangiectasia of the sides of the cheeks and neck; common in middle-aged women. Synonym: Civatte's disease. (05 Mar 2000) |
| parapsoriasis lichenoides et varioliformis acuta | pityriasis lichenoides et varioliformis acuta |
| parapsoriasis varioliformis | pityriasis lichenoides et varioliformis acuta |
| atheromatous plaque | A well-demarcated yellow area or swelling on the intimal surface of an artery; produced by intimal lipid deposit. (05 Mar 2000) |
| atherosclerotic plaque | <cardiology, pathology> A buildup of cholesterol and fatty material within a blood vessel due to the effects of atherosclerosis. (27 Sep 1997) |
| bacterial plaque | In dentistry, a mass of filamentous microorganisms and large variety of smaller forms attached to the surface of a tooth which, depending on bacterial activity and environmental factors, may give rise to caries, calculus, or inflammatory changes in adjacent tissue. Synonym: dental plaque, mucous plaque, mucinous plaque. (05 Mar 2000) |
| bacteriophage plaque | A clear circular zone in an otherwise confluent growth of bacteria on an agar surface resulting from bacterial lysis by bacterial viruses. (05 Mar 2000) |
| plaque | <dentistry> Dental plaque is a combination of food (left in the mouth after eating), bacteria (which live in the mouth) and bacterial byproducts (acidic wastes). These acidic wastes can break down the tooth enamel leading to tooth decay. Plaque also irritates the gum tissue (see gingivitis) and eventually destroys periodontal tissue, promoting periodontal disease. (27 Sep 1997) |
| plaque and tartar cause | (12 Dec 1998) |
| plaque assay | 1. <investigation> Assay for virus in which a dilute solution of the virus is applied to a culture dish containing a layer of the host cells, convective spread is prevented by making the medium very viscous. After incubation the plaques, areas in which cells have been killed (or transformed), can be recognised and the number of infective virus particles in the original suspension estimated. 2. Assay for cells producing antibody against erythrocytes or against antigen that has been bound to the erythrocytes. The cell is surrounded by a clear plaque of haemolysis. Basic principle behind the assay is the same as for the virus plaque assay. (18 Nov 1997) |
| plaque-forming unit | <virology> Number of infectious virus particles or Ig producing cells per unit volume. See: plaque assay. <microbiology> Refers to any entity which can give rise to a plaque. For example: if a phage stock solution has 1010 pfu/ml, it means that every ml of this stock has 1010 phage particles which can form plaques. This (pfu/ml) is the conventional way to refer the concentration of a phage preparation. Compare: CFU. (10 Oct 1997) |
| Plaque Index | An index for estimating the status of oral hygiene by measuring dental plaque which occurs in the areas adjacent to the gingival margin. (05 Mar 2000) |
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