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ion channel |
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ion an atom or group of atoms having a positive (cation) or negative (anion) electric charge by virtue of having gained or lost one or more electrons. Substances forming ions are electrolytes. ion channel see channel. dipolar ion zwitterion. hydrogen ion the positively charged hydrogen atom (H+), present to excess in acid solutions. ion pair the pair of ions created when an atom has had an electron removed by ionizing radiation. ion trapping a strategy for treatment of poisonings based on the principle that cell membranes are less permeable to ionized compounds. With knowledge of the characteristics of the toxin, treatment can be given to alter the acid-base balance in favor of ionization. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| Stromectol joins with glutamatergic chloride ion channels, increasing the permeability of the cell membrane to chloride ions which kills parasites. With the optical switch in place, researchers could use focused light signals to open ion channels in specific areas of brain tissue, a potentially powerful technique for determining how neuronal networks function, Isacoff says. These results show that exposure of rat cardiac myocytes to noncytotoxic concentrations of Zn and V alter spontaneous beat rate as well as the expression of ion channels and sarcolemmal proteins relevant to electrical remodeling and slowing of spontaneous beat rate, with Zn producing a more profound effect. |
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