| MCT | manual cervical traction; mean cell thickness; mean cell threshold; mean circulation time; mean corp... |
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| MTC | mass transfer coefficient; maximum tolerated concentration; maximum toxic concentration; medical tes... |
| PACT | papillary carcinoma of thyroid; precordial acceleration tracing; prepaid accountable care term |
| PTC | papillary thyroid carcinoma; percutaneous transhepatic cholangiography; phase transfer catalyst; phe... |
| TPC | thromboplastic plasma component; thyroid papillary carcinoma; total patient care; total plasma catec... |
| growth factors | Proteins involved in cell differentiation and growth.Growth factors are essential to the normal cell cycle, and are thus vital elements in the life of animals from conception to death. Among other things, they mediate foetal development, play a role in maintenance and repair of tissues, stimulate production of blood cells, and, gone awry, participate in cancerous processes. (05 Mar 2000) |
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| meteorological factors | The atmospheric phenomena which pertain to climate and weather. (12 Dec 1998) |
| clearing factors | Lipoprotein lipases that appear in plasma during lipaemia and catalyze hydrolysis of triglycerides only when the latter are bound to protein and when an acceptor (e.g., serum albumin) is present, thus "clearing" the plasma. (05 Mar 2000) |
| colicin factors | Plasmids determining the potentiality of a bacterium to produce colicins. They are cytoplasmic elements whose integration into the bacterial chromosome has not been demonstrated except for the col b and col v factors. (12 Dec 1998) |
| colonisation factors | <microbiology> The pili on enteropathogenic forms of E. Coli facilitate adhesion of the bacteria to receptors (probably GM1 gangliosides) on gut epithelial cells and are often referred to as colonisation or adherence factors. Colonisation factor antigens may be plasmid coded, are essential for pathogenicity and are strain specific, for example K88 diarrhoea in piglets), CFAI and CFAII on strains causing similar disease in man. (18 Nov 1997) |
| cord factors | Trehalose-6,6'-dimycolate. A toxic glycolipid of mycobacterium tuberculosis. Induces cellular biochemical disfunction in animals; used as immunoadjuvant. (12 Dec 1998) |
| myogenic regulatory factors | A family of muscle-specific transcription factors which bind to DNA in control regions and thus regulate myogenesis. All members of this family contain a conserved helix-loop-helix motif which is homologous to the myc family proteins. These factors are only found in skeletal muscle. Members include the myod protein (myod protein), myogenin, myf-5, and myf-6 (also called mrf4 or herculin). (12 Dec 1998) |
| coupling factors | Proteins that restore phosphorylating ability to mitochondria that have lost it, i.e., have become "uncoupled" so that oxidation and electron transport no longer produces ATP. Usually termed coupling factor F1, F2, etc. Synonym: C factors. (05 Mar 2000) |
| haematopoietic cell growth factors | These growth factors comprise a family of haematopoietic regulators with biological specificities defined by their ability to support proliferation and differentiation of blood cells of different lineages. Erythropoietin and the colony-stimulating factors belong to this family. Some of these factors have been studied and used in the treatment of chemotherapy-induced neutropenia, myelodysplastic syndromes, and bone marrow failure syndromes. (12 Dec 1998) |
| haemolysin factors | Plasmids controlling the synthesis of haemolysin by bacteria. (12 Dec 1998) |
| precipitating factors | Factors associated with the definitive onset of a disease, illness, accident, behavioural response, or course of action. Usually one factor is more important or more obviously recognizable than others, if several are involved, and one may often be regarded as "necessary". Examples include exposure to specific disease; amount or level of an infectious organism, drug, or noxious agent, etc. (12 Dec 1998) |
| predisposing factors | Attitudinal, personality, and related factors that motivate and guide an individual to take certain health actions. (05 Mar 2000) |
| sex factors | Maleness or femaleness as a constituent element or influence contributing to the production of a result. It may be applicable to the cause or effect of a circumstance. It is used with human or animal concepts but should be differentiated from sex characteristics, anatomical or physiological manifestations of sex, and from sex distribution, the number of males and females in given circumstances. (12 Dec 1998) |
| socioeconomic factors | Social and economic factors that characterise the individual or group within the social structure. (12 Dec 1998) |
| steam conversion factors | (approximations) 1 pound of steam = 1,000 Btu = .3 kW. 10,000 lbs/hr steam = 300 boiler horsepower. (05 Dec 1998) |