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chemotaxis
(redirected from Chemotactic factors)

   Also found in: Medical, Encyclopedia, Wikipedia 0.01 sec.
che·mo·tax·is  (km-tkss, km-)
n.
The characteristic movement or orientation of an organism or cell along a chemical concentration gradient either toward or away from the chemical stimulus.

chemo·tactic (-tktk) adj.
chemo·tacti·cal·ly adv.

chemotaxis [ˌkɛməʊˈtæksɪs]
n
(Life Sciences & Allied Applications / Microbiology) the movement of a microorganism or cell in response to a chemical stimulus
chemotactic  adj
chemotactically  adv

chemotaxis  (km-tkss, km-)
The characteristic movement or orientation of an organism or cell along a chemical concentration gradient either toward or away from the chemical stimulus. Bacteria exhibit chemotaxis when they move toward a source of nutrients.

chemotaxis
the property of some plants and animals of moving toward or away from certain chemicals.
See also: Motion
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.chemotaxis - movement by a cell or organism in reaction to a chemical stimulus
taxis - a locomotor response toward or away from an external stimulus by a motile (and usually simple) organism
negative chemotaxis - movement away from a chemical stimulus
positive chemotaxis - movement toward a chemical stimulus


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Some of the mediators are histamine, heparin, leukotrienes, serotonin, chemotactic factors, tryptase, chymase and prostaglandins.
They can cause vessel dilation, release chemotactic factors, result in extravasation of white blood cells, and dermatologically produce pruritis, erythema, scaling and hyperkeratosis of sebaceous follicles.
6) In rabbits, Hashimoto et al showed that steroids suppress the formation of granulation tissue (1) by reducing vascular permeability, (2) by decreasing extravasation and the migration of inflammatory cells to the site of infection, (3) by inhibiting the production of a variety of chemotactic factors (especially complement factors and lymphocyte-derived factors), and (4) by acting on growth factors such as vascular endothelial growth factor and transforming growth factor beta.
 
 
 
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