Abstract
IT seems to have been widely assumed that autonomic neurones respond to axonal damage much as do somatic motoneurones. From an extensive series of experiments on the albino rat, however, we have obtained evidence that autonomic preganglionic neurones are much more seriously affected. Thus, when the cervical vagus on one side was either crushed or cut, we consistently found in more than 100 animals that changes in the cells of the dorsal motor nucleus of the vagus were more severe and more protracted than in those of the hypoglossal nucleus when its nerve was similarly treated. The changes are seen particularly well in histochemical preparations designed to show the distribution of various metabolic enzymes. In the work described here attention was concentrated on alterations in the cholinesterases and in acid phosphatase.
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References
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LEWIS, P., JONES, P., BREATHNACH, S. et al. Regenerative Capacity of Visceral Preganglionic Neurones. Nature New Biology 236, 181–182 (1972). https://doi.org/10.1038/newbio236181a0
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DOI: https://doi.org/10.1038/newbio236181a0
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