| DMRF | dorsal medullary reticular formation |
|---|---|
| ECF | effective capillary flow; eosinophilic chemotactic factor; erythroid colony formation; extended care... |
| LPF | leukocytosis-promoting factor; leukopenia factor; lipopolysaccharide factor; localized plaque format... |
| PPRF | paramedian pontine reticular formation; postpartum renal failure |
| PRF | partial reinforcement; patient report form; perforin; plasma recognition factor; pontine reticular f... |
| myelin p0 protein | A protein that accounts for more than half of the peripheral nervous system myelin protein. The extracellular domain of this protein is believed to engage in adhesive interactions and thus hold the myelin membrane compact. It can behave as a homophilic adhesion molecule through interactions with its extracellular domains. (12 Dec 1998) |
|---|---|
| myelin p2 protein | A positively charged protein found in peripheral nervous system myelin. Sensitive immunological techniques have demonstrated that p2 is expressed in small amounts of central nervous system myelin sheaths of some species. It is an antigen for experimental allergic neuritis (neuritis, experimental allergic), the peripheral nervous system counterpart of experimental allergic encephalomyelitis. (12 Dec 1998) |
| myelin protein A1 | An important protein in the central nervous system. Synonym: myelin protein A1. (05 Mar 2000) |
| myelin proteins | Proteins found in the myelin sheath. The major proteins of central nervous system myelin include: myelin proteolipid protein, myelin basic proteins, and myelin-associated glycoprotein. The major proteins of peripheral nervous system myelin include: myelin basic proteins (myelin p1 protein and myelin p2 protein), myelin p0 protein, and myelin-associated glycoprotein. (12 Dec 1998) |
| myelin proteolipid protein | A myelin protein that is the major component of the organic solvent extractable lipoprotein complexes of whole brain. It has been the subject of much study because of its unusual physical properties. It remains soluble in chloroform even after essentially all of its bound lipids have been removed. (12 Dec 1998) |
| myelin sheath | <anatomy, neurology> An insulating layer surrounding vertebrate peripheral neurons, that dramatically increases the speed of conduction. It is formed by specialised Schwann cells, that can wrap around neurons up to 50 times. The exposed areas are called nodes of Ranvier: they contain very high densities of sodium channels and action potentials jump from one node to the next, without involving the intermediate axon, a process known as saltatory conduction. (18 Nov 1997) |
| heat of formation | The heat (expressed in calories or joules) absorbed or liberated during the (hypothetical) reaction in which a mole of a compound is formed from the necessary elements, in elemental form. (05 Mar 2000) |
| symptom formation | An unconscious psychological process by which a repressed impulse is indirectly manifested through a particular symptom, e.g., anxiety, compulsion, depression, hallucination, obsession. Synonym: symptom formation. (05 Mar 2000) |
| enthalpy of formation | <chemistry> The enthalpy change when 1 mole of a substance is formed from the elements in their standard states, represented by the symbol Hf. Synonym: heat of formation. (09 Jan 1998) |
| formation | 1. The act of giving form or shape to anything; a forming; a shaping. 2. The manner in which a thing is formed; structure; construction; conformation; form; as, the peculiar formation of the heart. 3. A substance formed or deposited. 4. <geology> Mineral deposits and rock masses designated with reference to their origin; as, the siliceous formation about geysers; alluvial formations; marine formations. A group of beds of the same age or period; as, the Eocene formation. 5. The arrangement of a body of troops, as in a square, column, etc. Origin: L. Formatio: cf. F. Formation. Source: Websters Dictionary (01 Mar 1998) |
| leukodystrophy with diffuse Rosenthal fibre formation | A metabolic disorder whose onset can be in infancy, adolescence, or adulthood; characterised pathologically by widespread cerebral demyelination with astrocyte and primitive oligodendroglial cell proliferation; refractile Rosenthal fibres result from the degeneration of these proliferating cells; aetiology unknown, but possibly due to a metabolic defect of astrocytes; sex-linked recessive disorder. (05 Mar 2000) |