| type II mortality | <epidemiology> A mortality schedule in which all hosts are assumed to die at a constant rate. This constant rate is equal to the inverse of the life expectancy. (05 Dec 1998) |
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| type II mucopolysaccharidosis | <syndrome> An error of mucopolysaccharide metabolism characterised by deficiency of iduronate sulfatase, with excretion of dermatan sulfate and heparan sulfate in the urine; clinically similar to Hurler's syndrome but distinguished by less severe skeletal changes, no corneal clouding, and X-linked recessive inheritance. Synonym: type II mucopolysaccharidosis. (05 Mar 2000) |
| type III acrocephalosyndactyly | An autosomal dominant syndrome with variable expression of brachycephaly, maxillary hypoplasia, prominent ear crus, syndactyly, facial asymmetry, shallow orbits, telecanthus, and nasal septal deviation; may show mental retardation. Synonym: Saethre-Chotzen syndrome. (05 Mar 2000) |
| type III collagen | Collagen characteristic of reticular fibres. (05 Mar 2000) |
| type III familial hyperlipoproteinaemia | Hyperlipoproteinaemia characterised by increased plasma levels of LDL, beta-lipoproteins, pre-beta-lipoproteins, cholesterol, phospholipids, and triglycerides; hypertriglyceridemia induced by a high carbohydrate diet, and glucose tolerance is abnormal; frequent eruptive xanthomas and atheromatosis, particularly coronary artery disease; biochemical defect lies in apolipoproteins; there are many varieties. Synonym: carbohydrate-induced hyperlipaemia, dysbetalipoproteinaemia, familial hyperbetalipoproteinaemia and hyperprebetalipoproteinaemia, familial hypercholesterolaemia with hyperlipaemia. (05 Mar 2000) |
| type III hyperlipoproteinaemia | <biochemistry> An inherited disorder (gene defect) where both cholesterol and triglycerides are elevated in the same patient. This condition accelerates the effects of atherosclerosis and thus increases the risk of cardiovascular disease. Conditions such as hypothyroidism, obesity and diabetes enhances this risk. Origin: Gr. Haima = blood (27 Sep 1997) |
| type III hypersensitivity reaction | An immunologic category of diseases evoked by the deposition of antigen-antibody or antigen-antibody-complement complexes on cell surfaces, with subsequent involvement of breakdown products of complement, platelets, and polymorphonuclear leukocytes, and development of vasculitis; nephritis is common. Arthus phenomenon and serum sickness are classic examples, but many other disorders, including most of the connective tissue disease's, may belong in this immunologic category; immune complex disease's can also occur during a variety of disease's of known aetiology, such as subacute bacterial endocarditis. See: autoimmune disease. Synonym: immune complex disorder, type III hypersensitivity reaction. (05 Mar 2000) |
| type III mucopolysaccharidosis | <syndrome> An error of the mucopolysaccharide metabolism, with excretion of large amounts of heparan sulfate in the urine and severe mental retardation with hepatomegaly; skeleton may be normal or may present mild changes similar to those in Hurler's syndrome; several different types (A, B, C, and D) have been identified according to the enzyme deficiency; autosomal recessive inheritance. Synonym: type III mucopolysaccharidosis. (05 Mar 2000) |
| type IS mucopolysaccharidosis | <syndrome> A hereditary metabolic disorder caused by a recessive gene which results in a deficiency of the enzyme alpha-L-iduronidase, which breaks down dermatan sulphate and heparan sulphate, two types of mucopolysaccharides (complex carbohydrates). Consequently, the mucopolysaccharides accumulate in the cells of the body and cause damage. Symptoms include skeletal deformities, mental retardation, coronary artery disease, deafness, and stiff joints, among other things. There are mild and severe forms of the syndrome, the severe form is called Hurler syndrome, the mild form is called Scheie Syndrome, and children with an intermediate form have Hurler-Scheie Syndrome. Patients with the mild form generally suffer little to no mental retardation and survive to adulthood. There is presently no cure. Scheie's Syndrome is one of a number of related rare genetic mucopolysaccharide disorders, the most common being Hunter syndrome. (09 Oct 1997) |
| type IV acrocephalosyndactyly | Acrocephalosyndactyly with pointed nose, hypertelorism, cleft palate, congenital heart disease and pseudohermaphroditism; contractures of elbows and knees; soft tissue syndactyly, absent first metatarsal and great toe. Autosomal recessive. (05 Mar 2000) |
| type IV collagen | A less distinctly fibrillar form of collagen characteristic of basement membranes. (05 Mar 2000) |
| type IV familial hyperlipoproteinaemia | Plasma levels of VLDL, pre-beta-lipoproteins and triglycerides are increased on a normal diet, but beta-lipoproteins, cholesterol, and phospholipids are normal; hypertriglyceridemia is induced by a high carbohydrate diet; may be accompanied by abnormal glucose tolerance and susceptibility to ischemic heart disease; probably autosomal recessive inheritance. Synonym: carbohydrate-induced hyperlipaemia, familial hyperprebetalipoproteinaemia, familial hypertriglyceridemia. (05 Mar 2000) |
| type IV prepilin peptidase | <enzyme> Product of the pulc-o pullulanase secretion gene operon; involved in processing prepilin signal peptide; may also function as an n-methyltransferase Registry number: EC 3.4.99.- Synonym: pulo protein, pulo gene product, pulo peptidase (26 Jun 1999) |
| type IVA,B mucopolysaccharidosis | <syndrome> An error of mucopolysaccharide metabolism with excretion of keratan sulfate in urine; characterised by severe skeletal defects with short stature, severe deformity of spine and thorax, long bones with irregular epiphyses but with shafts of normal length, enlarged joints, flaccid ligaments, and waddling gait; autosomal recessive inheritance; type IV A mucopolysaccharidosis is due to an absence of galactose-1-sulfatase, while type IV B is due to a deficiency of a beta-galactosidase. Synonym: Brailsford-Morquio disease, Morquio's disease, Morquio-Ullrich disease, type IVA, B mucopolysaccharidosis. (05 Mar 2000) |
| type locality | <zoology> The geographical location of the occurrence of the population from which the type specimen was taken. Population occurring at type locality = topotypical population. Specimens collected at type locality = topotypes. (09 Jan 1998) |
| 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) |