| Literature DB >> 8584410 |
E R Jacobs1, C Cheliakine, D Gebremedhin, E K Birks, P F Davies, D R Harder.
Abstract
We investigated the response of inward rectifier K+ (IRK) currents in bovine aortic endothelial cells (BAECs) to shear stress. Shear evoked reversible hyperpolarization in current clamped BAECs. Voltage clamped BAECs exhibited large inward and small outward whole cell K+ currents blocked by cesium and increased in amplitude by exposure to shear stress. The open state probability of IRK channels in cell-attached membrane patches was increased within minutes of exposure to shear stress. IRK channels in inside-out patches were activated by increases in [Ca2+]i from 10(-7) to 10(-6) mM. We demonstrate that shear stress induces hyperpolarization and gating of single channel and whole cell IRK currents in BAECs.Entities:
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Year: 1995 PMID： 8584410 DOI： 10.1007/bf00374386
Source DB: PubMed Journal: Pflugers Arch ISSN： 0031-6768 Impact factor: 3.657