Title : Tetrodotoxin-sensitive calcium-conducting channels in the rat hippocampal CA1 region.

Pub. Date : 1992 May

PMID : 1331428






14 Functional Relationships(s)
Download
Sentence
Compound Name
Protein Name
Organism
1 Tetrodotoxin (TTX)-sensitive Ca2+ conducting channels which produce a transient inward current were investigated in pyramidal neurones freshly dissociated from the dorsal part of rat hippocampal CA1 region by the use of the suction-pipette technique, which allows for intracellular perfusion under a single-electrode voltage clamp. Tetrodotoxin carbonic anhydrase 2 Rattus norvegicus
2 Tetrodotoxin (TTX)-sensitive Ca2+ conducting channels which produce a transient inward current were investigated in pyramidal neurones freshly dissociated from the dorsal part of rat hippocampal CA1 region by the use of the suction-pipette technique, which allows for intracellular perfusion under a single-electrode voltage clamp. Tetrodotoxin carbonic anhydrase 2 Rattus norvegicus
3 In all cells superfused with Na(+)- and K(+)-free external solution containing 10 mM-Ca2+ and 10(-5) M-La3+, a transient inward Ca2+ current was evoked by a step depolarization to potentials more positive than about -50 mV from a holding potential (VH) of -100 mV. lanthanum(3+) carbonic anhydrase 2 Rattus norvegicus
4 In all cells superfused with Na(+)- and K(+)-free external solution containing 10 mM-Ca2+ and 10(-5) M-La3+, a transient inward Ca2+ current was evoked by a step depolarization to potentials more positive than about -50 mV from a holding potential (VH) of -100 mV. vh carbonic anhydrase 2 Rattus norvegicus
5 In all cells superfused with Na(+)- and K(+)-free external solution containing 10 mM-Ca2+ and 10(-5) M-La3+, a transient inward Ca2+ current was evoked by a step depolarization to potentials more positive than about -50 mV from a holding potential (VH) of -100 mV. vh carbonic anhydrase 2 Rattus norvegicus
6 This current was inhibited by either removing the extracellular Ca2+ or adding TTX (termed as "TTX-ICa"). ttx-ica carbonic anhydrase 2 Rattus norvegicus
7 When the peak amplitudes in the individual current-voltage (I-V) relationships of TTX-ICa at various extracellular Ca2+ concentrations ([Ca2+]o) were plotted as a function of [Ca2+]o, the current amplitude increased linearly without showing any saturation. ttx-ica carbonic anhydrase 2 Rattus norvegicus
8 When the peak amplitudes in the individual current-voltage (I-V) relationships of TTX-ICa at various extracellular Ca2+ concentrations ([Ca2+]o) were plotted as a function of [Ca2+]o, the current amplitude increased linearly without showing any saturation. ttx-ica carbonic anhydrase 2 Rattus norvegicus
9 When the peak amplitudes in the individual current-voltage (I-V) relationships of TTX-ICa at various extracellular Ca2+ concentrations ([Ca2+]o) were plotted as a function of [Ca2+]o, the current amplitude increased linearly without showing any saturation. ttx-ica carbonic anhydrase 2 Rattus norvegicus
10 The ratio of peak amplitude in the individual I-V relationships of Ca2+, Sr2+ and Ba2+ currents passing through the TTX-sensitive Ca2+ conducting channel was 1:0.33:0.05, although the current kinetics were much the same. strontium cation carbonic anhydrase 2 Rattus norvegicus
11 The ratio of peak amplitude in the individual I-V relationships of Ca2+, Sr2+ and Ba2+ currents passing through the TTX-sensitive Ca2+ conducting channel was 1:0.33:0.05, although the current kinetics were much the same. N-methyl-valyl-amiclenomycin carbonic anhydrase 2 Rattus norvegicus
12 The ratio of peak amplitude in the individual I-V relationships of Ca2+, Sr2+ and Ba2+ currents passing through the TTX-sensitive Ca2+ conducting channel was 1:0.33:0.05, although the current kinetics were much the same. N-methyl-valyl-amiclenomycin carbonic anhydrase 2 Rattus norvegicus
13 The ratio of peak amplitude in the individual I-V relationships of Ca2+, Sr2+ and Ba2+ currents passing through the TTX-sensitive Ca2+ conducting channel was 1:0.33:0.05, although the current kinetics were much the same. Tetrodotoxin carbonic anhydrase 2 Rattus norvegicus
14 The ratio of peak amplitude in the individual I-V relationships of Ca2+, Sr2+ and Ba2+ currents passing through the TTX-sensitive Ca2+ conducting channel was 1:0.33:0.05, although the current kinetics were much the same. Tetrodotoxin carbonic anhydrase 2 Rattus norvegicus