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10.1016/0022-0736(92)90129-n http://scihub22266oqcxt.onion/10.1016/0022-0736(92)90129-n 1735792!ä!1735792 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       J+Electrocardiol 1992 ; 25 (1): 45-51 Nephropedia Template TP {{tp|p=1735792|t=1992. Effect of strontium on action potential repolarization in rabbit sinoatrial node cells |pdf=|usr=}}{{1735792}} gab.com Text Effect of strontium on action potential repolarization in rabbit sinoatrial node cells JO: J Electrocardiol http://www.kidney.de/pget.php?&tw=1&pmid=1735792 #FOAvip Using standard microelectrode techniques, the effects of strontium (Sr++) ions on action potential (AP) repolarizations in rabbit sinoatrial node (SAN) cells were studied. In a nominally magnesium-free, calcium-free solution, Sr++ (0.5-3.55 mmol) produced an early afterdepolarization (EAD) and a prolongation of the AP. Until now, no experimental evidence has been presented in favor of an EAD mechanism in SAN cells. Superfusion of the SAN cells with 0.5 mmol Sr++ solution containing 1-5 mmol magnesium (Mg++) or 0.5 mmol calcium (Ca++) did not induce the EAD. Increasing the extracellular Mg++ to 1-5 mmol did not affect the EAD induced by superfusion with 3.55 mmol Sr++ solution. Increasing the extracellular Ca++ to 0.5 mmol suppressed the 3.55 mmol Sr(++)-induced EAD. The presence of 0.3 mmol manganese (Mn++) suppressed the EAD induced by superfusion with 0.5 mmol Sr++ solution. The EAD did not occur in the presence of 1 x 10(-6) mol nitrendipine or 2 x 10(-6) mol diltiazem hydrochloride. The presence of 0.03 mmol Mn++ did not significantly alter the 0.5 mmol Sr(++)-induced EAD. These results suggest that a slow inward Sr++ current through the Ca++ channel has an important role in the development of the EAD. Twit Text FOAVip Effect of strontium on action potential repolarization in rabbit sinoatrial node cells ????J Electrocardiol http://www.kidney.de/pget.php?&tw=1&pmid=1735792 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=1735792 #FOAvip English Wikipedia <ref>{{Cite pmid|1735792}}</ref> Effect of strontium on action potential repolarization in rabbit sinoatrial node cells #MMPMID1735792 Miyamae S J Electrocardiol 1992[Jan]; 25 (1): 45-51 PMID1735792show ga Using standard microelectrode techniques, the effects of strontium (Sr++) ions on action potential (AP) repolarizations in rabbit sinoatrial node (SAN) cells were studied. In a nominally magnesium-free, calcium-free solution, Sr++ (0.5-3.55 mmol) produced an early afterdepolarization (EAD) and a prolongation of the AP. Until now, no experimental evidence has been presented in favor of an EAD mechanism in SAN cells. Superfusion of the SAN cells with 0.5 mmol Sr++ solution containing 1-5 mmol magnesium (Mg++) or 0.5 mmol calcium (Ca++) did not induce the EAD. Increasing the extracellular Mg++ to 1-5 mmol did not affect the EAD induced by superfusion with 3.55 mmol Sr++ solution. Increasing the extracellular Ca++ to 0.5 mmol suppressed the 3.55 mmol Sr(++)-induced EAD. The presence of 0.3 mmol manganese (Mn++) suppressed the EAD induced by superfusion with 0.5 mmol Sr++ solution. The EAD did not occur in the presence of 1 x 10(-6) mol nitrendipine or 2 x 10(-6) mol diltiazem hydrochloride. The presence of 0.03 mmol Mn++ did not significantly alter the 0.5 mmol Sr(++)-induced EAD. These results suggest that a slow inward Sr++ current through the Ca++ channel has an important role in the development of the EAD. |Action Potentials/drug effects[MESH] |Animals[MESH] |Calcium/pharmacology[MESH] |Cells, Cultured[MESH] |Diltiazem/pharmacology[MESH] |In Vitro Techniques[MESH] |Magnesium/pharmacology[MESH] |Manganese/pharmacology[MESH] |Nitrendipine/pharmacology[MESH] |Rabbits[MESH] |Sinoatrial Node/cytology/drug effects/*physiology[MESH]Effect of strontium on action potential repolarization in rabbit sinoa(epmc).pdf DeepDyve Pubget Overpricing