Title : Presence of functional hyperpolarisation-activated cyclic nucleotide-gated channels in clonal alpha cell lines and rat islet alpha cells.

Pub. Date : 2008 Dec

PMID : 18850083






4 Functional Relationships(s)
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1 Patch-clamp recording showed hyperpolarisation-activated currents in alpha-TC6 cells, which could be blocked by HCN channel inhibitor ZD7288. ICI D2788 cyclic nucleotide gated channel subunit alpha 1 Rattus norvegicus
2 Calcium imaging studies showed that blockade of HCN channels by ZD7288 significantly increased intracellular calcium in alpha-TC6 cells, while lamotrigine or the Na(+) channel blocker tetrodotoxin suppressed the effect of ZD7288 on intracellular calcium. ICI D2788 cyclic nucleotide gated channel subunit alpha 1 Rattus norvegicus
3 Calcium imaging studies showed that blockade of HCN channels by ZD7288 significantly increased intracellular calcium in alpha-TC6 cells, while lamotrigine or the Na(+) channel blocker tetrodotoxin suppressed the effect of ZD7288 on intracellular calcium. ICI D2788 cyclic nucleotide gated channel subunit alpha 1 Rattus norvegicus
4 Furthermore, we found the HCN channel inhibitors ZD7288 and cilobradine both significantly increased glucagon secretion from rat islets. ICI D2788 cyclic nucleotide gated channel subunit alpha 1 Rattus norvegicus