Results 41 to 50 of about 293,330 (287)
Frontiers in Cellular Neuroscience, 2015 Photoreceptors rely upon highly specialized synapses to efficiently transmit signals to multiple postsynaptic targets. Calcium influx in the presynaptic terminal is mediated by voltage-gated calcium channels (VGCC).
Antonella eCaputo +6 more
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Vacuolar calcium channels [PDF]
Journal of Experimental Botany, 2007 The central vacuole is the largest Ca2+ store in a mature plant cell. Ca2+ release from this store contributes to Ca2+-mediated intracellular signalling in a variety of physiological responses. However, the routes for vacuolar Ca2+ release are not well characterized.
Gerald Schönknecht, Igor Pottosin
openaire +3 more sources
Tonic activation of extrasynaptic NMDA receptors decreases intrinsic excitability and promotes bistability in a model of neuronal activity [PDF]
Int J Mol Sci. 2019 Dec 27;21(1). pii: E206, 2018 NMDA receptors (NMDA-R) typically contribute to excitatory synaptic transmission in the central nervous system. While calcium influx through NMDA-R plays a critical role in synaptic plasticity, experimental evidence indicates that NMDAR-mediated calcium influx also modifies neuronal excitability through the activation of calcium-activated potassium ...
arxiv +1 more source
A first-passage approach to diffusion-influenced reversible binding: insights into nanoscale signaling at the presynapse [PDF]
Sci. Rep. 11, 5377 (2021), 2020 Synaptic transmission between neurons is governed by a cascade of stochastic reaction-diffusion events that lead to calcium-induced vesicle release of neurotransmitter. Since experimental measurements of such systems are challenging due their nanometer and sub-millisecond scale, numerical simulations remain the principal tool for studying calcium ...
arxiv +1 more source
Suramin-Induced Neurotoxicity: Preclinical Models and Neuroprotective Strategies
Molecules, 2018 Suramin is a trypan blue analogon originally developed to treat protozoan infections, which was found to have diverse antitumor effects. One of the most severe side effects in clinical trials was the development of a peripheral sensory-motor ...
David von der Ahe +5 more
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Calcium Channel Engineering [PDF]
Biophysical Journal, 2015 High-voltage-activated calcium (CaV) channels convert electrical signals into Ca2+ ion influx to trigger biological responses in excitable cells. CaV channel dysfunction underlies many cardiovascular and neurological diseases, from cardiac arrhythmias to autism. Modulation of CaV channels by intracellular signaling proteins, Ca2+ ions and various small
openaire +2 more sources
FEBS Letters, EarlyView.Venom peptides have shown promise in treating pain. Our study uses computer screening to identify a peptide that targets a sodium channel (NaV1.7) linked to chronic pain. We produced the peptide in the laboratory and refined its design, advancing the search for innovative pain therapies.
Gagan Sharma +8 more
wiley +1 more source
Host Calcium Channels and Pumps in Viral Infections
Cells, 2019 Ca2+ is essential for virus entry, viral gene replication, virion maturation, and release. The alteration of host cells Ca2+ homeostasis is one of the strategies that viruses use to modulate host cells signal transduction mechanisms in their favor.
Xingjuan Chen, Ruiyuan Cao, Wu Zhong
doaj +1 more source
The Saccharomyces cerevisiae amino acid transporter Lyp1 has a broad substrate spectrum
FEBS Letters, EarlyView.In Saccharomyces cerevisiae, Yeast Amino acid Transporter family members mediate the import of amino acids, ranging from substrate specialists to generalists. Here, we show that the specialist transporter, Lyp1, has a broader substrate spectrum than previously described, with affinity constants spanning from micromolar to millimolar.
Foteini Karapanagioti +3 more
wiley +1 more source
Toxins, 2022 Sea anemones produce venoms characterized by a complex mixture of low molecular weight compounds, proteins and peptides acting on voltage-gated ion channels. Mammal sperm cells, like neurons, are characterized by their ion channels. Calcium channels seem
Fernando Lazcano-Pérez +12 more
doaj +1 more source