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Action of glucosamine on acetylcholine-sensitive channels

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Summary

The action of glucosamine was studied on voltage clamped neurones ofAplysia, presenting an excitatory response to acetylcholine. Noise and relaxation experiments show that glucosamine increases the mean channel open time and reduces the amplitude of the elementary current associated with the acetylcholine response. Both effects are enhanced by hyperpolarization of the cell membrane. The results are interpreted by a model assuming glucosamine binding to open channels. This binding impedes the flow of permeant ions and decreases the closing rate of the channels.

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Authors and Affiliations

  1. Laboratoire de Neurobiologie, Ecole Normale Supérieure, 75005, Paris, France

    Dominique Marchais & Alain Marty

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  1. Dominique Marchais
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  2. Alain Marty
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Marchais, D., Marty, A. Action of glucosamine on acetylcholine-sensitive channels. J. Membrain Biol. 56, 43–48 (1980). https://doi.org/10.1007/BF01869350

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  • DOI: https://doi.org/10.1007/BF01869350

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