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Science 20 November 1987:
Vol. 238. no. 4830, pp. 1122 - 1126
DOI: 10.1126/science.3685967
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Articles

Science, Vol 238, Issue 4830, 1122-1126
Copyright © 1987 by American Association for the Advancement of Science

articles

Nerve terminal remodeling visualized in living mice by repeated examination of the same neuron

D Purves, JT Voyvodic, L Magrassi, and H Yawo

Department of Anatomy and Neurobiology, Washington University School of Medicine, St. Louis, MO 63110.

The distribution of presynaptic endings on the surfaces of autonomic ganglion cells was mapped in living mice after intravenous administration of a styryl pyridinium dye. The staining and imaging techniques did not appear to damage the ganglion cells, or the synapses on them; these procedures could therefore be repeated after an arbitrary period. Observations of the same neurons at intervals of up to 3 weeks indicate that the pattern of preganglionic terminals on many of these nerve cells gradually changes.


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