Results 41 to 50 of about 4,654,285 (364)

Role of the CaV1.2 distal carboxy terminus in the regulation of L-type current

open access: yesChannels
L-type calcium channels are essential for the excitation-contraction coupling in cardiac muscle. The CaV1.2 channel is the most predominant isoform in the ventricle which consists of a multi-subunit membrane complex that includes the CaV1.2 pore-forming ...
Felipe Arancibia   +5 more
doaj   +1 more source

TRPM8 Puts the Chill on Prostate Cancer

open access: yesPharmaceuticals, 2016
Prostate cancer (PCa) is one of the most frequently diagnosed cancers in developed countries. Several studies suggest that variations in calcium homeostasis are involved in carcinogenesis. Interestingly, (Transient Receptor Potential Melastatin member 8)
Guillaume P. Grolez, Dimitra Gkika
doaj   +1 more source

In vivo spatiotemporal control of voltage-gated ion channels by using photoactivatable peptidic toxins

open access: yesNature Communications, 2022
Photoactivable toxins targeting ion channels have great potential to control cell activity. Here the authors report HwTxIV-Nvoc, a UV light-cleavable and photoactivatable peptide that targets voltage-gated sodium channels; they validate this in cells ...
Jérôme Montnach   +15 more
doaj   +1 more source

The ion-channel laser [PDF]

open access: yes, 1990
A relativistic electron beam propagating through a plasma in the ion-focused regime exhibits an electromagnetic instability at a resonant frequency {omega} {approximately} 2{gamma}{sup 2} {omega}{sub {beta}}. Growth is enhanced by optical guiding in the ion channel, which acts as dielectric waveguide, with fiber parameter V {approximately} 2 (I/I{sub A}
Whittum, D H, Sessler, A M, Dawson, J M
openaire   +5 more sources

Mitochondrial Ion Channels [PDF]

open access: yesAnnual Review of Physiology, 2007
In work spanning more than a century, mitochondria have been recognized for their multifunctional roles in metabolism, energy transduction, ion transport, inheritance, signaling, and cell death. Foremost among these tasks is the continuous production of ATP through oxidative phosphorylation, which requires a large electrochemical driving force for ...
openaire   +3 more sources

Error correction due to background subtraction in ratiometric calcium measurements with CCD camera

open access: yesHeliyon, 2020
Background: Ca2+ plays an important role in many physiological processes and an accurate study of these signals is important. In modern fluorescence microscopy, a charge-coupled device (CCD) camera is widely deployed for calcium imaging.
Vyacheslav M. Shkryl
doaj   +1 more source

Simulation and calculation of the contribution of hyperpolarization-activated cyclic nucleotide-gated channels to action potentials [PDF]

open access: yesArchives of Biological Sciences, 2016
The hyperpolarization-activated cyclic nucleotide-gated (HCN) channel, which mediates the influx of cations, has an important role in action potential generation.
Liao Liping   +6 more
doaj   +1 more source

Consequences of somatic mutations of GIRK1 detected in primary malign tumors on expression and function of G-protein activated, inwardly rectifying, K+ channels

open access: yesFrontiers in Oncology, 2022
A search in the GDC Data Portal revealed 304 documented somatic mutations of the KCNJ3 gene in primary tumors (out of 10.202 cases). Most affected tumor types were carcinomas from uterus, skin and lung, while breast cancer exerted the lowest number of ...
Brigitte Pelzmann   +19 more
doaj   +1 more source

Redox Regulation of Mitochondrial Potassium Channels Activity

open access: yesAntioxidants
Redox reactions exert a profound influence on numerous cellular functions with mitochondria playing a central role in orchestrating these processes. This pivotal involvement arises from three primary factors: (1) the synthesis of reactive oxygen species (
Joanna Lewandowska   +3 more
doaj   +1 more source

TRPM Family Channels in Cancer

open access: yesPharmaceuticals, 2018
Members of the TRPM (“Melastatin”) family fall into the subclass of the TRP channels having varying permeability to Ca2+ and Mg2+, with three members of the TRPM family being chanzymes, which contain C-terminal enzyme domains.
Aline Hantute-Ghesquier   +3 more
doaj   +1 more source

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