Artículo
Dopamine induces intracellular Ca2+ signals mediated by alpha(1B)-adrenoceptors in rat pineal cells
Autor/es | Rey, Elkin
Hernández-Díaz, Francisco J. Abreu, Pedro Alonso, Rafael Tabares, Lucía |
Departamento | Universidad de Sevilla. Departamento de Fisiología Médica y Biofísica |
Fecha de publicación | 2001 |
Fecha de depósito | 2023-05-25 |
Publicado en |
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Resumen | We have studied the functional interaction of dopamine with a -adrenoceptor subtypes by measuring intracellular Ca2q 1 levels in
pineal cells, a cell type where adrenoceptors are well characterized. We show that dopamine ... We have studied the functional interaction of dopamine with a -adrenoceptor subtypes by measuring intracellular Ca2q 1 levels in pineal cells, a cell type where adrenoceptors are well characterized. We show that dopamine induces transient intracellular Ca2q signals in only 70% of cells responding to phenylephrine. Dopamine-induced Ca2q signals desensitise faster than Ca2q transients elicited with phenylephrine and are selectively blocked by desipramine, imipramine, and a -adrenoceptor antagonists. These results suggest that 1B dopamine induced Ca2q signals are mainly due to the activation of one subtype of a-adrenoceptor, the a . |
Cita | Rey, E., Hernández-Díaz, F.J., Abreu, P., Alonso, R. y Tabares, L. (2001). Dopamine induces intracellular Ca2+ signals mediated by alpha(1B)-adrenoceptors in rat pineal cells. EUROPEAN JOURNAL OF PHARMACOLOGY, 430 (1), 9-17. https://doi.org/10.1016/S0014-2999(01)01250-X. |
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