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- Title
Glial Satellite Cells as a Source of Supplementary Energy Supply for Neurons during Spike Activity at Elevated Frequency.
- Authors
Pasikova, N.; Mednikova, Yu.; Voronkov, D.; Khudoerkov, R.; Kopytova, F.
- Abstract
Studies using living slices of guinea pig sensorimotor cortex showed that functional differences in the regulation of the level of spontaneous activity in different neurons coincide with the heterogeneous distribution of glial satellite cells. The greatest increases in spike activity in response to acetylcholine (up to 36 spikes/sec) were seen in 'silent' neurons, which accounted for 37.2% of all neurons in layer V. Morphometric analysis showed that the same proportion of neurons (38.6%) had glial satellites. Spontaneously active neurons showed only small (5-22 spikes/sec) increases in spike activity over baseline. It is suggested that the maximal development of M-cholinergic reactions regulating the level of spontaneous activity in inactive neurons requires a supplementary energy source, which is provided by the contacts of neurons with their surrounding glial satellite cells.
- Subjects
NEUROGLIA; SENSORY neurons; ACETYLCHOLINE; TISSUE slices; GUINEA pigs as laboratory animals; SENSORIMOTOR cortex
- Publication
Neuroscience & Behavioral Physiology, 2013, Vol 43, Issue 2, p144
- ISSN
0097-0549
- Publication type
Article
- DOI
10.1007/s11055-013-9705-4