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. 1999 Nov-Dec;29(6):671-5.
doi: 10.1007/BF02462482.

Cyclic GTP imitates the potentiating effect of the nootrope vinpocetine on the high-threshold A-current in mollusk neurons

E I Solntseva  1 , Bukanova YuV
Affiliations

Cyclic GTP imitates the potentiating effect of the nootrope vinpocetine on the high-threshold A-current in mollusk neurons

E I Solntseva et al. Neurosci Behav Physiol. 1999 Nov-Dec.

Abstract

Isolated common snail neurons were studied using two-microelectrode potential clamping to record high-threshold (threshold = 10 mV) rapidly-inactivating potassium current (I(Aht)); the effects of the nootrope vinpocetine on this current were studied and were compared with the effects of cyclic nucleotides. Intracellular application of dibutyryl derivatives of cyclic adenosine monophosphate (dcAMP) and guanosine monophosphate (dcGMP) was used. The results showed that vinpocetine potentiates or fails to alter I(Aht) in different cells, while dcGMP imitates the effect of vinpocetine. Simultaneous application of vinpocetine and dcGMP did not result in additive effects. Unlike dcGMP, dcAMP did not imitate the effects of vinpocetine, and decreased I(Aht) in most cells. These data suggest that cGMP mediates the potentiating effect of vinpocetine on I(Aht).

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References

    1. Clin Exp Pharmacol Physiol. 1995 Dec;22(12):944-51 - PubMed
    1. Neurosci Lett. 1995 Feb 9;185(2):127-30 - PubMed
    1. Biomed Biochim Acta. 1990;49(5):413-9 - PubMed
    1. Trends Pharmacol Sci. 1990 Apr;11(4):150-5 - PubMed
    1. Neuron. 1988 Oct;1(8):693-9 - PubMed

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