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Digitale Medien

Multiple mechanisms of antagonism ofγ-aminobutyric acid (GABA) responses (1987)

Akaike, N. ; Yakushiji, T. ; Tokutomi, N. ; [weitere]

Springer

Cellular and molecular neurobiology 7 (1987), S. 97-103

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Details

ISSN: 1573-6830

Schlagwort(e): γ-aminobutyric acid (GABA) ; dorsal root ganglion neurons ; internal perfusion ; GABA antagonists

Quelle: Springer Online Journal Archives 1860-2000

Thema: Biologie

Notizen: Summary 1. Gamma-aminobutyric acid (GABA) is one of the most important neurotransmitters in the brain. In an effort to understand the operation of the GABA receptor-ionophore complex, the antagonism of GABA responses by four substances was studied in bullfrog dorsal root ganglion cells by concentration-clamp and internal-perfusion techniques. 2. Two antagonists (bicuculline and Zn2+) were competitive; two (picrotoxin and penicillin) were noncompetitive. However, significant changes in the kinetics of activation and inactivation were produced by the antagonists, including those that were competitive. 3. The causes of these changes may be important clues to the structure and operation of the GABA receptor-ionophore complex.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF00734993

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