Publication Date:
1992-01-10
Description:
The fluorescent dyes FM1-43 and RH414 label motor nerve terminals in an activity-dependent fashion that involves dye uptake by synaptic vesicles that are recycling. This allows optical monitoring of vesicle recycling in living nerve terminals to determine how recycled vesicles reenter the vesicle pool. The results suggest that recycled vesicles mix with the pool morphologically and functionally. One complete cycle of release of transmitter, recycling of a vesicle, and rerelease of transmitter appears to take about 1 minute.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Betz, W J -- Bewick, G S -- NS10207/NS/NINDS NIH HHS/ -- NS23466/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1992 Jan 10;255(5041):200-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physiology, University of Colorado School of Medicine, Denver 80262.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1553547" target="_blank"〉PubMed〈/a〉
Keywords:
Animals
;
Electric Stimulation
;
Evoked Potentials
;
Fluorescent Dyes
;
In Vitro Techniques
;
Microscopy, Fluorescence
;
Motor Neurons/physiology
;
Neuromuscular Junction/*physiology/ultrastructure
;
Pyridinium Compounds
;
*Quaternary Ammonium Compounds
;
Ranidae
;
Synaptic Vesicles/*physiology/ultrastructure
;
Time Factors
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
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