Abstract
To study the regulation of striatal acetylcholinee (ACH) release, adult male rat striata were dissociated and incubated with 3H-choline to synthesize 3H-ACH. Fractional 3H-ACH efflux per min during continuous perifussion was: (1) tightly regulated; (2) dependent on calcium influx; (3) stimulated by 10 mM K+ and 1 mM glutamate; and (4) comparable to ACH release detected by HPLC. Thus, acutely dissociated striata exhibit calcium-sensitive, voltage-dependent secretion of 3H-ACH and direct receptor-mediated stimulation of release through the glutamate receptor family. This new approach toward cholinergic secretory physiology will help clarify complex striatal circuitry.
Original language | English (US) |
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Pages (from-to) | 271-275 |
Number of pages | 5 |
Journal | Brain Research |
Volume | 697 |
Issue number | 1-2 |
DOIs | |
State | Published - Oct 30 1995 |
Externally published | Yes |
Keywords
- Acetylcholine
- Calcium
- Dissociated cell
- Fractional efflux
- Glutamate
- High-performance liquid chromatography
- Striatum
ASJC Scopus subject areas
- General Neuroscience
- Molecular Biology
- Clinical Neurology
- Developmental Biology