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. 1980 Aug 21;56(1):43-8.
doi: 10.1007/BF01869350.

Action of glucosamine on acetylcholine-sensitive channels

D Marchais, A Marty

Action of glucosamine on acetylcholine-sensitive channels

D Marchais et al. J Membr Biol. .

Abstract

The action of glucosamine was studied on voltage clamped neurones of Aplysia, 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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