نبذة مختصرة : This review describes the ionic mechanisms involved in the nodal swelling of frog myelinated axons caused by specific marine neurotoxins (ciguatoxins, brevetoxins, Conus consors toxin and equinatoxin-II), analysed using confocal laser scanning microscopy. We have focussed on toxins that either target neuronal voltage-dependent Na + channels, or that form cationselective pores and indirectly affect the functioning of the Na +-Ca ++ exchanger.
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