Production of [14C]Acetylcholine and [14C]Carbon Dioxide from [U–14C]Glucose in Tissue Prisms from Aging Rat Brain
- 1 February 1982
- journal article
- research article
- Published by Wiley in Journal of Neurochemistry
- Vol. 38 (2), 488-492
- https://doi.org/10.1111/j.1471-4159.1982.tb08654.x
Abstract
Production of [14C]acetylcholine and 14CO2 was examined by using tissue prisms from neocortex, hippocampus and striatum from rats aged approximately 5 mo., 13 mo. and 27 mo. [14C]Acetylcholine synthesis in the striatum showed highly significant decreases with age for measurements in the presence of both 5 mM- and 31 mM-K+, contrasting with the lack of significant change in 14CO2 production in this region. The neocortex and hippocampus showed only small changes, especially when comparison was made between 13-mo. and senescent animals. Measurements of the release of [14C]acetylcholine and influence of atropine on this release confirmed the relative stability with age of the cholinergic system in the neocortex.Keywords
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