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GABA/sub A/ receptor-controlled /sup 36/Cl/sup -/ influx in cultured rat cerebellar granule cells

Journal Article · · Life Sci.; (United States)
..gamma..-Aminobutyric acid (GABA)-mediated and bicuculline-sensitive /sup 36/Cl/sup -/ influx and bicuculline-sensitive (/sup 3/H) GABA binding were demonstrated in cultures of rat cerebellar granule cells. The addition of 10/sup -5/ M GABA produced a two-fold increase in /sup 36/Cl/sup -/ influx over the basal level and the maximal increase was observed after approximately 20 sec. Progressive occupation of GABA/sub A/ receptor by (/sup 3/H)-(1S-9R)-bicuculline methiodide decreased /sup 36/Cl/sup -/ influx activated by 10 ..mu..M GABA. The above results suggest that primary cultures of rat cerebellar granule cells provide a new and reliable model for studying the GABA activated chloride fluxes. 41 references, 4 figures.
Research Organization:
Central Research Institute for Chemistry, Budapest, Hungary
OSTI ID:
5726032
Journal Information:
Life Sci.; (United States), Journal Name: Life Sci.; (United States) Vol. 41:3; ISSN LIFSA
Country of Publication:
United States
Language:
English