| retroviruses type b, mammalian | A genus of the family retroviridae consisting of a few exogenous, vertically transmitted and endogenous viruses of mice. It is associated with mammary carcinoma and T-cell lymphoma. (12 Dec 1998) |
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| retroviruses type c, avian | A genus of the family retroviridae with type c morphology, that causes malignant and other diseases in wild birds and domestic fowl. (12 Dec 1998) |
| retroviruses type c, mammalian | A genus of retroviridae comprising endogenous sequences in mammals, related reticuloendotheliosis viruses of birds, and a reptilian species. Many species contain oncogenes and cause leukaemias and sarcomas. (12 Dec 1998) |
| retroviruses, type d | A genus of the family retroviridae consisting of oncogenic exogenous retroviruses that contain type d particles. They include the type species, mason-pfiser monkey virus, isolated from mammary carcinoma and normal tissues in rhesus monkeys, and several other serotypes of simian type d retroviruses (retroviruses type d, simian), all of which cause simian aids (saids) and other malignancies. The permanent human fibroblast virus (pmfv) is also type d. The core of the type d viruses is the intracytoplasmic type a particle and its mechanism of budding from the cell membrane is similar to the type b oncoviruses. (12 Dec 1998) |
| retroviruses type d, simian | Type d retroviruses that cause simian acquired immunodeficiency syndrome (saids) and malignancies in monkeys. at least five serotypes of srv are recognised: srv-1, srv-2 (retrovirus-d/new england), srv-3 (mason-pfiser monkey virus), srv-4, and srv-5. Subcutaneous fibrosarcoma is associated with srv-1 infection and retroperitoneal fibromatosis is associated with srv-2 infection. (12 Dec 1998) |
| grandiose type of paranoid disorder | A delusion in which the person believes that he or she possesses some great but unrecognised talent or insight, or has made an important discovery, with subsequent efforts toward official or public recognition. (05 Mar 2000) |
| childhood type tuberculosis | First infection by Mycobacterium tuberculosis, typically seen in children but also occurs in adults, characterised in the lungs by the formation of a primary complex consisting of small peripheral pulmonary focus with spread to hilar or paratracheal lymph nodes; may cavitate or heal with scarring or may progress. Synonym: childhood type tuberculosis. (05 Mar 2000) |
| pernicious anaemia type rubriblast | The earliest of four maturation stages of the megaloblast. See: erythroblast. Synonym: pernicious anaemia type rubriblast. (05 Mar 2000) |
| persecutory type of paranoid disorder | One of the most common of the types of paranoid disorders, it involves a single theme or series of connected themes, such as being conspired against, cheated, spied on, followed, poisoned or drugged, maligned, harassed, or obstructed in the pursuit of long-term goals; small slights may be exaggerated and become the focus of a delusional system. See: paranoia. Compare: paranoid personality disorder. (05 Mar 2000) |
| river-type fish | <marine biology> Anadromous fish that rear for a year or more in rivers. (23 Aug 1998) |
| Romanovsky type stain | <technique> Composite histological stains including methylene blue, Azure A or B and eosin, sometimes with other stains. Examples are Giemsa, Wright's and Leishman's stain. (18 Nov 1997) |
| wild type | <genetics> The naturally-occuring, normal, non-mutated version of a gene. The original parent strain of a virus, bacteria, fruit fly, mouse, or other laboratory test organism. Often refers to how organisms are found naturally, in the wild, before mutations were induced by researchers. (09 Oct 1997) |
| wild-type strain | A strain found in nature or a standard strain. See: auxotrophic strains, prototrophic strains. (05 Mar 2000) |
| MPGN type i | A kidney disorder which results in kidney dysfunction. Inflammation of the glomeruli result from an abnormal immune response and the deposition of antibodies within the kidney (glomerulus) ultrastructure. Membranoproliferative glomerulonephritis (MPGN) has been divided into two different types in the basis of where the antibodies are deposited in the glomerulus. MPGN type I, the more common type, deposits antibodies in the subendothelial layer of the basement membrane, whereas type II deposits antibodies in the bottom layer of the basement membrane. Symptoms include cloudy urine (pyuria), decreased urine output, swelling and hypertension. This disorder often results in end-stage renal disease. (27 Sep 1997) |
| mpgn type II | A kidney disorder which results in kidney dysfunction. Inflammation of the glomeruli result from an abnormal immune response and the deposition of antibodies within the kidney (glomerulus) ultrastructure. Membranoproliferative glomerulonephritis (MPGN) has been divided into two different types in the basis of where the antibodies are deposited in the glomerulus. MPGN type I, the more common type, deposits antibodies in the subendothelial layer of the basement membrane, whereas type II deposits antibodies in the bottom layer of the basement membrane. Symptoms include cloudy urine (pyuria), decreased urine output, swelling and hypertension. This disorder often results in end-stage renal disease. (27 Sep 1997) |