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Cited by 257

The DOI matches its Crossref record; 14 of the 14 references it cites were found in a registry or an index.

Inward rectifier K+ currents in smooth muscle cells from rat resistance-sized cerebral arteries

Quayle, J. M., McCarron, J. G., Brayden, J. E., Nelson, M. T.·1993·American Journal of Physiology-Cell Physiology
DOI 10.1152/ajpcell.1993.265.5.c1363
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Abstract

Inward rectifier K+ channels have been implicated in the control of membrane potential and external K(+)-induced dilations of small cerebral arteries. In the present study, whole cell K+ currents through the inward rectifier K+ channel were measured in single smooth muscle cells isolated from the posterior cerebral artery of Wistar-Kyoto rats. The whole cell K+ current-voltage relationship showed inward rectification. Inward currents were recorded negative to the K+ equilibrium potential, whereas outward currents were small. When extracellular K+ was elevated, the zero current potential shifted to the new K+ equilibrium potential, and the conductance of the inward current increased. Inward currents were reduced by external barium or cesium. Inhibition by barium and cesium increased with membrane hyperpolarization. The half-inhibition constant for barium was 2.2 microM at -60 mV, increasing e-fold for a 23-mV depolarization. We provide the first direct measurements of inward rectifier K+ currents in single smooth muscle cells and show that external barium ions are effective blockers of these currents.

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Metadata

Authors
Quayle, J. M., McCarron, J. G., Brayden, J. E., & Nelson, M. T.
Venue
American Journal of Physiology-Cell Physiology
Publisher
American Physiological Society
Published
1993-11-01
Volume
265
Issue
5
Pages
C1363-C1370
ISSN
  • 0363-6143 (ISSN-L)
  • 1522-1563
DOI
10.1152/ajpcell.1993.265.5.c1363
OpenAlex
W2395707267
Cited by
257
References
14
FWCI
4.50
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Inward rectifier K+ currents in smooth muscle cells from rat resistance-sized cerebral arteries. https://app.cochat.ai/papers/10.1152/ajpcell.1993.265.5.c1363
The paper
Quayle, J. M., McCarron, J. G., Brayden, J. E., & Nelson, M. T. (1993). Inward rectifier K+ currents in smooth muscle cells from rat resistance-sized cerebral arteries. American Journal of Physiology-Cell Physiology. https://doi.org/10.1152/ajpcell.1993.265.5.c1363

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.