Results 251 to 260 of about 303,783 (310)
Tidsskrift for den Norske laegeforening : tidsskrift for praktisk medicin, ny raekke, 1972 openaire +1 more source
Mechanisms of Sperm Chemotaxis
Annual Review of Physiology, 2008 Sperm are attracted by chemical factors that are released by the egg—a process called chemotaxis. Most of our knowledge on sperm chemotaxis originates from the study of marine invertebrates. In recent years, the main features of the chemotactic signaling pathway and the swimming behavior evoked by chemoattractants have been elucidated in sea urchins ...
Kaupp, U., Kashikar, N., Weyand, I.
openaire +4 more sources
Some of the next articles are maybe not open access.
Related searches:
Related searches:
Journal of Allergy and Clinical Immunology, 1980
Chemotaxis is defined as the ability of living cells to determine the direction of their locomotion along a concentration gradient of attractant and repellant substances. A survey is given of the various in vitro techniques for detecting chemotaxis in leukocytes including monocyte macrophages, polymorphonuclear cells, lymphocytes and bacterial cells ...
R R, Kretschmer, M L, Collado
openaire +4 more sources
Chemotaxis is defined as the ability of living cells to determine the direction of their locomotion along a concentration gradient of attractant and repellant substances. A survey is given of the various in vitro techniques for detecting chemotaxis in leukocytes including monocyte macrophages, polymorphonuclear cells, lymphocytes and bacterial cells ...
R R, Kretschmer, M L, Collado
openaire +4 more sources
Experientia, 1968
It is the purpose of this review to provide a survey of some more recent work on chemotaxis of leucocytes. Attention was drawn to the existence of a variety of cytotaxins (chemotactic mediators) and in particular to their cell specificity. The significance of these different cytotaxins for the accumulation of leucocytes in inflammatory sites in vivo is
H U, Keller, E, Sorkin
openaire +2 more sources
It is the purpose of this review to provide a survey of some more recent work on chemotaxis of leucocytes. Attention was drawn to the existence of a variety of cytotaxins (chemotactic mediators) and in particular to their cell specificity. The significance of these different cytotaxins for the accumulation of leucocytes in inflammatory sites in vivo is
H U, Keller, E, Sorkin
openaire +2 more sources
Journal of Theoretical Biology, 1971
Abstract The chemotactic response of unicellular microscopic organisms is viewed as analogous to Brownian motion. Local assessments of chemical concentrations made by individual cells give rise to fluctuations in path. When averaged over many cells, or a long time interval, a macroscopic flux is derived which is proportional to the chemical gradient.
E F, Keller, L A, Segel
openaire +2 more sources
Abstract The chemotactic response of unicellular microscopic organisms is viewed as analogous to Brownian motion. Local assessments of chemical concentrations made by individual cells give rise to fluctuations in path. When averaged over many cells, or a long time interval, a macroscopic flux is derived which is proportional to the chemical gradient.
E F, Keller, L A, Segel
openaire +2 more sources
European Journal of Protistology, 1990
Chemotaxis - that is oriented locomotion of single cells - was shown by motion analysis of Tetrahymena thermophila. An electronic registration of swimming tracks was carried out in gradients of chemoattractant established in a modified Zigmond chamber. The attractants used were proteose peptone, platelet extract and fibroblast growth factor.
P, Hellung-Larsen +3 more
openaire +2 more sources
Chemotaxis - that is oriented locomotion of single cells - was shown by motion analysis of Tetrahymena thermophila. An electronic registration of swimming tracks was carried out in gradients of chemoattractant established in a modified Zigmond chamber. The attractants used were proteose peptone, platelet extract and fibroblast growth factor.
P, Hellung-Larsen +3 more
openaire +2 more sources
Annual Review of Biochemistry, 1974
Bacterial chemotaxis, the movement of motile bacteria toward or away from chemicals, was discovered nearly a century ago by Engelmann (1) and Pfeffer (2,3). The subject was actively studied for about 50 years, but then there were very few reports until quite recently.
openaire +5 more sources
Bacterial chemotaxis, the movement of motile bacteria toward or away from chemicals, was discovered nearly a century ago by Engelmann (1) and Pfeffer (2,3). The subject was actively studied for about 50 years, but then there were very few reports until quite recently.
openaire +5 more sources