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10.1016/j.tips.2014.06.002 http://scihub22266oqcxt.onion/10.1016/j.tips.2014.06.002 C4467785!4467785!25023607     free     free     free Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534       Trends+Pharmacol+Sci 2014 ; 35 (9): 461-9 Nephropedia Template TP {{tp|p=25023607|t=2014. Altered and dynamic ion selectivity of K+ channels in cell development and excitability |pdf=|usr=}}{{25023607}} gab.com Text Altered and dynamic ion selectivity of K+ channels in cell development and excitability JO: Trends Pharmacol Sci http://www.kidney.de/pget.php?&tw=1&pmid=25023607 #FOAvip K+ channels play a key role in regulating cellular excitability. It was thought that the strong K+-selectivity of these channels was static, only altered by mutations in their selectivity filter, which can cause severe genetic disorders. Recent studies demonstrate that selectivity of K+ channels can also exhibit dynamic changes. Under acidic conditions or in low extracellular K+ concentrations, the two-pore domain K+ channel (K2P) TWIK1 becomes permeable to Na+, shifting from an inhibitory role to an excitatory role. This phenomenon is responsible for the paradoxical depolarization of human cardiomyocytes in pathological hypokalemia, and therefore may contribute to cardiac arrhythmias. In other cell types, TWIK1 produces depolarizing leak currents under physiological conditions. Dynamic ion selectivity also occurs in other K2P channels. Here we review evidence that dynamic selectivity of K2P channels constitutes a new regulatory mechanism of cellular excitability, whose significance is only now becoming appreciated. Twit Text FOAVip Altered and dynamic ion selectivity of K+ channels in cell development and excitability ????Trends Pharmacol Sci http://www.kidney.de/pget.php?&tw=1&pmid=25023607 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=25023607 #FOAvip English Wikipedia <ref>{{Cite pmid|25023607}}</ref> Altered and dynamic ion selectivity of K+ channels in cell development and excitability #MMPMID25023607 Chen H; Chatelain FC; Lesage F Trends Pharmacol Sci 2014[Sep]; 35 (9): 461-9 PMID25023607show ga K+ channels play a key role in regulating cellular excitability. It was thought that the strong K+-selectivity of these channels was static, only altered by mutations in their selectivity filter, which can cause severe genetic disorders. Recent studies demonstrate that selectivity of K+ channels can also exhibit dynamic changes. Under acidic conditions or in low extracellular K+ concentrations, the two-pore domain K+ channel (K2P) TWIK1 becomes permeable to Na+, shifting from an inhibitory role to an excitatory role. This phenomenon is responsible for the paradoxical depolarization of human cardiomyocytes in pathological hypokalemia, and therefore may contribute to cardiac arrhythmias. In other cell types, TWIK1 produces depolarizing leak currents under physiological conditions. Dynamic ion selectivity also occurs in other K2P channels. Here we review evidence that dynamic selectivity of K2P channels constitutes a new regulatory mechanism of cellular excitability, whose significance is only now becoming appreciated. äAltered and dynamic ion selectivity of K+ channels in cell development(epmc).pdf DeepDyve Pubget Overpricing