Results 291 to 300 of about 260,357 (315)
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Reviews of Reproduction, 1999
Communication between spermatozoa and egg before contact by chemotaxis appears to be prevalent throughout the animal kingdom. In non-mammalian species, sperm chemotaxis to factors secreted from the egg is well documented. In mammals, sperm chemotaxis to follicular factors in vitro has been established in humans and mice.
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Communication between spermatozoa and egg before contact by chemotaxis appears to be prevalent throughout the animal kingdom. In non-mammalian species, sperm chemotaxis to factors secreted from the egg is well documented. In mammals, sperm chemotaxis to follicular factors in vitro has been established in humans and mice.
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SIAM Journal on Mathematical Analysis, 2000
There is considered a coupled system of elliptic equations together with boundary conditions which model steady state solutions of a reaction-difussion system describing the competition in a nonmixed bioreactor with chemostatic response. The autor is interested in the existence of its positive solutions.
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There is considered a coupled system of elliptic equations together with boundary conditions which model steady state solutions of a reaction-difussion system describing the competition in a nonmixed bioreactor with chemostatic response. The autor is interested in the existence of its positive solutions.
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Cell and Tissue Research, 2018
Neutrophils are the primary cells recruited to inflamed sites during an innate immune response to tissue damage and/or infection. They are finely sensitive to inciting stimuli to reach in great numbers and within minutes areas of inflammation and tissue insult.
Björn, Petri, Maria-Jesús, Sanz
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Neutrophils are the primary cells recruited to inflamed sites during an innate immune response to tissue damage and/or infection. They are finely sensitive to inciting stimuli to reach in great numbers and within minutes areas of inflammation and tissue insult.
Björn, Petri, Maria-Jesús, Sanz
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1988
Publisher Summary Chemotaxis, the directional locomotion of organisms in relation to the sources of chemical attractants or repellants (attractants usually in the best-studied examples), is a phenomenon of importance in widely diverse fields of biology.
P.C. Wilkinson, Wendy S. Haston
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Publisher Summary Chemotaxis, the directional locomotion of organisms in relation to the sources of chemical attractants or repellants (attractants usually in the best-studied examples), is a phenomenon of importance in widely diverse fields of biology.
P.C. Wilkinson, Wendy S. Haston
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1988
Publisher Summary This chapter focuses on the inhibition of chemotaxis. There are two relatively well-defined chemotactic factor-directed inhibitors. Both are irreversible inhibitors of their target chemotactic attractant and thus are called inactivators: the anaphylatoxin inactivator and the chemotactic factor inactivator. As with all cell responses,
Peter A. Ward +2 more
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Publisher Summary This chapter focuses on the inhibition of chemotaxis. There are two relatively well-defined chemotactic factor-directed inhibitors. Both are irreversible inhibitors of their target chemotactic attractant and thus are called inactivators: the anaphylatoxin inactivator and the chemotactic factor inactivator. As with all cell responses,
Peter A. Ward +2 more
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2014
Chemotaxis assays have a number of applications in the study of leukocyte biology and immune/inflammatory pathology. Multiwell "blind chamber"-type assays allow a large number of parallel measurements within a single assay. The development of fluorescence assays using microplate-based chemotaxis chambers has permitted a degree of automation to be ...
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Chemotaxis assays have a number of applications in the study of leukocyte biology and immune/inflammatory pathology. Multiwell "blind chamber"-type assays allow a large number of parallel measurements within a single assay. The development of fluorescence assays using microplate-based chemotaxis chambers has permitted a degree of automation to be ...
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1974
Publisher Summary This chapter provides an overview of chemotaxis. Chemotaxis can be defined as that property of certain biologically active substances that enables them to attract cells and microorganisms. Chemotaxis is a phenomenon that results in the focal accumulation of motile cells, is a primordial biological reaction, widespread in the animal ...
Lester Grant, W. Scott Ramsey
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Publisher Summary This chapter provides an overview of chemotaxis. Chemotaxis can be defined as that property of certain biologically active substances that enables them to attract cells and microorganisms. Chemotaxis is a phenomenon that results in the focal accumulation of motile cells, is a primordial biological reaction, widespread in the animal ...
Lester Grant, W. Scott Ramsey
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