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PubMed:2445962 JSONTXT

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Oryza_sentences

Id Subject Object Predicate Lexical cue
T1 0-120 Sentence denotes Calcium action potential and its use for measurement of reversal potentials of horizontal cell responses in carp retina.
T2 121-123 Sentence denotes 1.
T3 124-383 Sentence denotes In the carp retina perfused with a solution containing high-Ca2+, Ba2+ and some K+-channel blockers, the horizontal cell produced a regenerative Ca2+ action potential when the cell was depolarized by bath application of L-glutamate (Glu) or L-aspartate (Asp).
T4 384-513 Sentence denotes The action potential was triggered also by a transretinal electrical stimulation which evoked an e.p.s.p. in the horizontal cell.
T5 514-587 Sentence denotes In this solution, some cells produced the action potential spontaneously.
T6 588-590 Sentence denotes 2.
T7 591-693 Sentence denotes The action potential had an overshoot of about 20 mV which lasted for several seconds or even minutes.
T8 694-739 Sentence denotes It had a threshold and showed refractoriness.
T9 740-813 Sentence denotes In addition, it was insensitive to tetrodotoxin, but was blocked by Co2+.
T10 814-964 Sentence denotes These observations revealed, in horizontal cells in situ, the presence of a voltage-dependent Ca2+ channel similar to that found in dissociated cells.
T11 965-1136 Sentence denotes It is supposed that, in a physiological environment, the Ca2+ channel is prevented from becoming regenerative probably because it is counteracted by K+ channel activities.
T12 1137-1139 Sentence denotes 3.
T13 1140-1289 Sentence denotes Simultaneous recordings from two separate horizontal cells showed full synchronization of the Ca2+ action potentials whose amplitudes were identical.
T14 1290-1494 Sentence denotes The potential uniformity thus formed in the S-space (Naka & Rushton, 1967) enabled us to measure reversal potentials of horizontal cell responses irrespective of the electrical coupling between the cells.
T15 1495-1497 Sentence denotes 4.
T16 1498-1681 Sentence denotes During an overshoot of the Ca2+ action potential, an electrically evoked e.p.s.p. as well as a light response appeared with polarities reversed to those elicited at the resting state.
T17 1682-1776 Sentence denotes Their reversal potentials could be estimated within a very narrow range between -5 and -10 mV.
T18 1777-1856 Sentence denotes At this range, both Glu- and Asp-induced potentials reversed the polarity, too.
T19 1857-1859 Sentence denotes 5.
T20 1860-2034 Sentence denotes These observations suggest that the ionic mechanisms are identical in the three kinds of horizontal cell response: light response, e.p.s.p. and amino acid-induced potentials.