Abstract
After application of colchicine to the caudal mesenteric nerve of cats, which contains sensory fibers for single mechanoreceptors (Pacinian corpuscles) the axon of the nerve endings degenerates. The character of the ultrastructural changes in the receptor is virtually identical with that observed during degeneration of axons after division of the nerve, but degeneration takes place much more slowly. The ultrastructural, electrophysiological, and biochemical changes taking place in the Pacinian corpuscles are not the result of the direct effect of the alkaloid, but are realized through the nerve, evidently by the blocking of axoplasmic transport. The results are evidence in support of the view that the structures of the receptor are under neurotrophic control by sensory neurons.
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Chelyshev, Y.A., Vinter, R.I. & Gataulin, R.R. Single mechanoreceptors (Pacinian corpuscles) studied by application of colchicine to the nerve. Bull Exp Biol Med 86, 1265–1267 (1978). https://doi.org/10.1007/BF00800430
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DOI: https://doi.org/10.1007/BF00800430