Results 21 to 30 of about 2,159,124 (309)
In this review article, we discuss the different gene products and translational variants of ORAI proteins and their contribution to the makeup of different native calcium-conducting channels with distinct compositions and modes of activation. We also review the different modes of regulation of these distinct calcium channels and their impact on ...
Mohamed, Trebak, James W, Putney
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OBJECTIVES:. The aim was to evaluate the effect of dihydropyridine calcium channel blocker on the prognosis for moderate-severe pulmonary acute respiratory distress syndrome in hypertension patients. DESIGN:.
Fengyuan Li, MD +9 more
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Tissue-specific expression of calcium channels [PDF]
The high-voltage-activated calcium channel is a multimeric protein complex containing 1, 2/δ, β, and γ subunits. The 1 subunit is the ion conduction channel and contains the binding sites for calcium channel blockers and toxins.
Flockerzi, Veit +3 more
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Regulation of Presynaptic Calcium Channels by Synaptic Proteins
Calcium entry into nerve termini via voltage gated calcium channels is an essential step in neurotransmission. Consequently, second messenger regulation of calcium channel activity modulates synaptic activity.
Gerald W. Zamponi
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P/Q-type calcium-channel blockade in the periaqueductal gray facilitates trigeminal nociception: a functional genetic link for migraine? [PDF]
The discovery of mis-sense mutations in the alpha1A subunit of the P/Q-type calcium channel in patients with familial hemiplegic migraine indicates the potential involvement of dysfunctional ion channels in migraine.
Goadsby, PJ +11 more
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Calcium Channel Antagonist Toxicity
Introduction This simulation case was designed to teach emergency medicine physicians, pediatricians, and other health care providers about the clinical presentation, stabilization, and medical management of the patient with suspected or proven toxic ...
Elaine Fielder +2 more
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Developmental Regulation of Small-Conductance Ca²⁺-Activated K⁺ Channel Expression and Function in Rat Purkinje Neurons [PDF]
Calcium transients play an important role in the early and later phases of differentiation and maturation of single neurons and neuronal networks. Small-conductance calcium-activated potassium channels of the SK type modulate membrane excitability and ...
Stocker, M +19 more
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Junctate is a key element in calcium entry induced by activation of InsP3 receptors and/or calcium store depletion [PDF]
In many cell types agonist-receptor activation leads to a rapid and transient release of Ca(2+) from intracellular stores via activation of inositol 1,4,5 trisphosphate (InsP(3)) receptors (InsP(3)Rs).
Arnoult, Christophe +42 more
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Calcium channels in lymphocytes [PDF]
On B and T lymphocytes, ligation of the antigen receptor (AgR) induces a biphasic Ca2+ response. In the initial phase there is a large elevation in the intracellular Ca2+ concentration as a consequence of Ca2+ release from intracellular stores. This is followed by a lower, but prolonged elevation that is dependent on extracellular Ca2+.1,2 This simple ...
G, Grafton, L, Thwaite
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Disparate effects of calcium channel blockers on pressure dependence of renin secretion and flow in the isolated perfused rat kidney [PDF]
Using the model of isolated perfused rat kidneys this study was performed to investigate whether or not voltage-operated calcium channels are essentially involved in the pressure control of renin secretion from the kidneys. At a perfusion pressure of 100
Scholz, Holger +3 more
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