title: Reversal potential of GABA-induced currents in rod bipolar cells of the rat retina.
abstract: GABA-induced whole-cell currents were measured in rod bipolar cells dissociated from the adult rat retina. The patch-clamp electrode contained nystatin, which made the cell membrane electrically permeable without rupture, thus retarding the rate of diffusion of Cl- ions from the patch pipette to the cell interior. The reversal potential of the GABA-induced currents was around -70 mV at an extracellular Cl- concentration of 149 mM. We conclude that GABA generates hyperpolarizing responses in rod bipolar cells of the rat retina.
authors.affiliation: Max-Planck-Institut für Hirnforschung, Frankfurt, Germany.
authors.forename: M
authors.initials: M
authors.lastname: Yamashita
authors.forename: H
authors.initials: H
authors.lastname: Wässle
mesh_terms: D000818:Animals; D008564:Membrane Potentials / Q000187:drug effects*; D009761:Nystatin; D010539:Permeability; D010786:Photoreceptor Cells / Q000187:drug effects* / Q000502:physiology; D051381:Rats; D005680:gamma-Aminobutyric Acid / Q000494:pharmacology*
chemical_list: D009761:Nystatin; D005680:gamma-Aminobutyric Acid