Eisenbach and sperm
Fumarate or a fumarate metabolite restores switching ability to rotating flagella of bacterial envelopes. In this sense, AEA as natural agonist , might mimic the migration effects of capsaicin involving TRPV1 activation, supporting the observations reported by De Toni et al. International Journal of Developmental Biology , 52 6-May: Phosphorylation-dependent binding of a signal molecule to the flagellar switch of bacteria. Two parameters were used for identifying hyperactivation, employing a homemade computerized motion analysis system in MatLab, based on principles described by Crocker and Grier
Subpopulations of boar spermatozoa respond to bicarbonate in different ways; some are quiescent in the absence of bicarbonate but are rapidly stimulated to maximal progressive motility, some are refractory to stimulation, and others lie somewhere in between. Also, the increase in FD was large only in a relatively small fraction of the cells. Capacitated spermatozoa showed higher response, thus the authors suggest that capacitation essentially amplifies the cell response to the temperature gradient. Transient Receptor Potential Cation Channel or Vanilloid Receptor 1 TRPV1 is a ligand-gated, nonselective cationic channel that is activated by molecules derived from plants, such as capsaicin, and also by stimuli like heat or protons Tangled interactions in sperm competition Eduardo Roldan: The Israeli saving lives in Syria. Cars could be powered by water with new Israeli technology.
Previous meetings | BoS
Enhanced and co-ordinated movement of the hamster oviduct during the periovulatory period. Michael Eisenbach; Lc Giojalas Sperm guidance in mammals - an unpaved road to the egg. Current needs for sperm assessment technology Semen assessment methods are used extensively in investigations of human clinical infertility and the last decade has seen the introduction into andrology laboratories of computer-assisted methods for both sperm motility and morphology analyses. Le chimiotactisme des spermatozoides a-t-il un role dans la fecondation? Arole for the chemokine receptor CCR6 in mammalian sperm motility and chemotaxis.
Females ensure their eggs are fertilised by the best sperm, so that offspring fitness is maximised. Pausing of flagellar rotation is a component of bacterial motility and chemotaxis. Since the response to a large step temperature change involved both kinetic and directional components, we propose the following model for sperm behavior in a spatial temperature gradient. Correlation between bacteriophage chi adsorption and mode of flagellar rotation of Escherichia coli chemotaxis mutants. Influence of semen processing technique on human sperm DNA integrity. E-mail this story to a friend. For the first time, we achieved the combined evaluation of both sperm motility and chemotaxis.