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Li influx and binding, and li/mg competition in bovine chromaffin cell suspensi...
Fonseca, Carlos P.; Montezinho, Liliana P.; Baltazar, Graça; Layden, Brian; Freitas, Duarte M.; Geraldes, Carlos F. G. C.; Castro, M. Margarida C. A.Li(+) influx by bovine chromaffin cells, obtained from bovine adrenal medulla, was studied in intact cell suspensions using (7)Li NMR spectroscopy with the shift reagent [Tm(HDOTP)](4-). The influx rate constants, k(i), were determined in the absence and in the presence of two Na(+) membrane transport inhibitors. The values obtained indicate that both voltage sensitive Na(+) channels and (Na(+)/K(+))-ATPase pla...
Data: 2000
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Origem: Estudo Geral - Universidade de Coimbra
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