نتایج جستجو برای: k channels
تعداد نتایج: 500256 فیلتر نتایج به سال:
Basic electrophysiological properties of the KcsA K(+) channel were examined in planar lipid bilayer membranes. The channel displays open-state rectification and weakly voltage-dependent gating. Tetraethylammonium blocking affinity depends on the side of the bilayer to which the blocker is added. Addition of Na(+) to the trans chamber causes block of open-channel current, while addition to the ...
Lysophosphatidic acid (LPA) is an abundant cellular lipid with a myriad of biological effects. It plays an important role in both inter- and intracellular signaling. Activation of the LPA1-3 G-protein-coupled receptors explains many of the extracellular effects of LPA, including cell growth, differentiation, survival, and motility. However, LPA also acts intracellularly, activating the nuclear ...
Perinatal hypoxia triggers alterations in K+ channels of adult pulmonary artery smooth muscle cells.
Adverse events during the perinatal period, like hypoxia, have been associated with adult diseases. In pulmonary vessels, K(+) channels play an important role in the regulation of vascular tone. In the fetus, Ca(2+)-activated K(+) channels (K(Ca)) are predominant, whereas from birth voltage-gated K(+) channels (K(V)) prevail in the adult. We postulated that perinatal hypoxia could alter this ma...
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