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10.2741/1653 http://scihub22266oqcxt.onion/10.2741/1653 15769659!ä!15769659 Deprecated: Implicit conversion from float 235.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 235.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 235.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 235.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 235.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534       Front+Biosci 2005 ; 10 (ä): 1693-706 Nephropedia Template TP {{tp|p=15769659|t=2005. Evidence for simultaneous 1Na+:1Mg2+ and ping pong 2Na+:1Mg2+ exchangers in rat thymocyte |pdf=|usr=}}{{15769659}} gab.com Text Evidence for simultaneous 1Na+:1Mg2+ and ping pong 2Na+:1Mg2+ exchangers in rat thymocyte JO: Front Biosci http://www.kidney.de/pget.php?&tw=1&pmid=15769659 #FOAvip Rat thymocytes showed two Na+/Mg2+ exchangers with high- and low- affinities for external Na+ (Na+o) at physiological internal Mg2+content. The total internal Mg2+ content (Mg2+it) was enhanced by loading with MgCl2 and the ionophore A-23187. Under these conditions, Na+/Mg2+ exchangers were dramatically stimulated by the Mg2+it increase. Na+-induced Mg2+ effluxes were independent of Cl-o or H+. The Na+/Mg2+ exchangers, which we named HANao (high affinity for Na+o) and LANao (low affinity for Na+o), were dissected in Mg2+-loaded thymocytes according to their kinetics and stoichiometries. HANao, which showed an apparent dissociation constant for Na+o (KNa H) = 9.2 +/- 1.6 mmol l(-1) Na+o and a maximal Na+ influx rate (VNa(Na H)max) = 30.5 +/- 6.1 mmol (l cells)(-1) h(-1), was a 1Na+:1Mg2+ simultaneous antiporter insensitive to external magnesium (Mg2+o) whereas that LANao, with KNa L = 65.1 +/- 8.6 mmol l(-1) Na+ and a VNa(Na L)max = 79.5 +/- 14.3 mmol (l cells)(-1) Na+ h(-1), was a 2Na+:1Mg2+ "ping-pong" antiporter which was strongly inhibited by Mg2+o. At physiological concentration of Mg2+o (1 mM), the Na+/Mg2+ exchange through the LANao was inhibited by approximately 50%. Amiloride (10(-4) M) inhibited at similar extent both Na+ and Mg2+ fluxes at high and at low Na+o. Twit Text FOAVip Evidence for simultaneous 1Na+:1Mg2+ and ping pong 2Na+:1Mg2+ exchangers in rat thymocyte ????Front Biosci http://www.kidney.de/pget.php?&tw=1&pmid=15769659 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=15769659 #FOAvip English Wikipedia <ref>{{Cite pmid|15769659}}</ref> Evidence for simultaneous 1Na+:1Mg2+ and ping pong 2Na+:1Mg2+ exchangers in rat thymocyte #MMPMID15769659 Contreras-Jurado C; Sanchez-Morito N; Ruiz-Contreras A; Gonzalez-Martinez MT; Soler-Diaz A Front Biosci 2005[May]; 10 (ä): 1693-706 PMID15769659show ga Rat thymocytes showed two Na+/Mg2+ exchangers with high- and low- affinities for external Na+ (Na+o) at physiological internal Mg2+content. The total internal Mg2+ content (Mg2+it) was enhanced by loading with MgCl2 and the ionophore A-23187. Under these conditions, Na+/Mg2+ exchangers were dramatically stimulated by the Mg2+it increase. Na+-induced Mg2+ effluxes were independent of Cl-o or H+. The Na+/Mg2+ exchangers, which we named HANao (high affinity for Na+o) and LANao (low affinity for Na+o), were dissected in Mg2+-loaded thymocytes according to their kinetics and stoichiometries. HANao, which showed an apparent dissociation constant for Na+o (KNa H) = 9.2 +/- 1.6 mmol l(-1) Na+o and a maximal Na+ influx rate (VNa(Na H)max) = 30.5 +/- 6.1 mmol (l cells)(-1) h(-1), was a 1Na+:1Mg2+ simultaneous antiporter insensitive to external magnesium (Mg2+o) whereas that LANao, with KNa L = 65.1 +/- 8.6 mmol l(-1) Na+ and a VNa(Na L)max = 79.5 +/- 14.3 mmol (l cells)(-1) Na+ h(-1), was a 2Na+:1Mg2+ "ping-pong" antiporter which was strongly inhibited by Mg2+o. At physiological concentration of Mg2+o (1 mM), the Na+/Mg2+ exchange through the LANao was inhibited by approximately 50%. Amiloride (10(-4) M) inhibited at similar extent both Na+ and Mg2+ fluxes at high and at low Na+o. |Amiloride/pharmacology[MESH] |Animals[MESH] |Antiporters/*isolation & purification/metabolism[MESH] |Magnesium/*metabolism[MESH] |Male[MESH] |Rats[MESH] |Rats, Wistar[MESH] |Sodium Channel Blockers/pharmacology[MESH] |Sodium/*metabolism[MESH]Evidence for simultaneous 1Na+:1Mg2+ and ping pong 2Na+:1Mg2+ exchange(epmc).pdf DeepDyve Pubget Overpricing