| 释义 |
pyrogenenUK
py·ro·gen P0688100 (pī′rə-jən)n. A substance that produces fever.pyrogen (ˈpaɪrəʊˌdʒɛn) n (Elements & Compounds) any of a group of substances that cause a rise in temperature in an animal bodypy•ro•gen (ˈpaɪ rə dʒən, -ˌdʒɛn)
n. a substance, as a bacterial toxin, that produces a rise in body temperature. [1855–60] Thesaurus| Noun | 1. | pyrogen - any substance characterized by its great flammabilitysubstance - a particular kind or species of matter with uniform properties; "shigella is one of the most toxic substances known to man" | | 2. | pyrogen - any substance that can cause a rise in body temperaturepyrecticsubstance - a particular kind or species of matter with uniform properties; "shigella is one of the most toxic substances known to man" |
Translations
pyrogenenUK
pyrogen[′pī·rə‚jən] (biochemistry) A group of substances thought to be polysaccharides of microbial origin that produce an increase in body temperature when injected into humans and some animals. pyrogenenUK
pyrogen [pi´ro-jen] an agent that causes fever; called also pyretic and pyrectic. adj., adj pyrogen´ic.endogenous pyrogen a low-molecular-weight protein that is produced by phagocytic leukocytes in response to stimulation by exogenous pyrogens and released into the circulation; it induces fever by acting on the preoptic area of the hypothalamus to raise the set-point of the hypothalamic thermostat. The pyrogen produced by monocytes and macrophages is not identical to that produced by neutrophils and eosinophils; the mononuclear phagocytes also produce a greater amount of pyrogen for a longer period of time than do the polymorphonuclear cells.exogenous p's fever-producing agents of external origin, e.g., bacterial endotoxins and other microbial products, antigen-antibody complexes, viruses and synthetic polynucleotides, incompatible blood and blood products, and androgen breakdown products such as etiocholanolone; the action is mediated by endogenous pyrogen.py·ro·gen (pī'rō-jen), A fever-inducing agent; pyrogens are produced by bacteria, molds, viruses, and yeasts. [pyro- + G. -gen, producing] pyrogen (pī′rə-jən)n. A substance that produces fever.pyrogen A fever-inducing substancepy·ro·gen (pī'rō-jen) A fever-inducing agent; produced by bacteria, molds, viruses, and yeasts; commonly found in distilled water. [pyro- + G. -gen, producing]pyrogen Any substance that causes fever. Endogenous pyrogens are proteins, such as interleukin-1, released by white blood cells in response to bacterial or viral infections. These act on the temperature-regulating centre in the brain, effectively resetting the thermostat at a higher level and causing the muscles to contract repeatedly and rapidly (shivering) so as to raise body temperature.pyrogen any substance which alters the body thermostat of HOMOIOTHERMS to a higher setting, giving rise to fever.PyrogenA chemical circulating in the blood that causes a rise in body temperature.Mentioned in: Feverpy·ro·gen (pī'rō-jen) Fever-inducing agent; produced by bacteria, molds, viruses, and yeasts. [pyro- + G. -gen, producing]pyrogenenUK
Related to pyrogen: endotoxin, endogenous pyrogenSynonyms for pyrogennoun any substance characterized by its great flammabilityRelated Wordsnoun any substance that can cause a rise in body temperatureSynonymsRelated Words |