Results 1 to 10 of about 192,611 (304)

Voltage-Gated Ca2+ Channels in Dopaminergic Substantia Nigra Neurons: Therapeutic Targets for Neuroprotection in Parkinson's Disease?

open access: yesFrontiers in Synaptic Neuroscience, 2021
The loss of dopamine (DA)-producing neurons in the substantia nigra pars compacta (SN) underlies the core motor symptoms of the progressive movement disorder Parkinson's disease (PD).
Nadine J. Ortner
doaj   +1 more source

Plasma Membrane Ca2+ ATPase Activity Enables Sustained Store-operated Ca2+ Entry in the Absence of a Bulk Cytosolic Ca2+ Rise

open access: yesFunction, 2022
In many cell types, the rise in cytosolic Ca2+ due to opening of Ca2+ release-activated Ca2+ (CRAC) channels drives a plethora of responses, including secretion, motility, energy production, and gene expression.
Pradeep Barak   +4 more
doaj   +1 more source

Structural and Functional Coupling of Calcium-Activated BK Channels and Calcium-Permeable Channels Within Nanodomain Signaling Complexes

open access: yesFrontiers in Physiology, 2022
Biochemical and functional studies of ion channels have shown that many of these integral membrane proteins form macromolecular signaling complexes by physically associating with many other proteins.
Kunal R. Shah   +4 more
doaj   +1 more source

Calcium-Dependent Ion Channels and the Regulation of Arteriolar Myogenic Tone

open access: yesFrontiers in Physiology, 2021
Arterioles in the peripheral microcirculation regulate blood flow to and within tissues and organs, control capillary blood pressure and microvascular fluid exchange, govern peripheral vascular resistance, and contribute to the regulation of blood ...
William F. Jackson
doaj   +1 more source

TRPC1 channels underlie stretch-modulated sarcoplasmic reticulum calcium leak in cardiomyocytes

open access: yesFrontiers in Physiology, 2022
Transient receptor potential canonical 1 (TRPC1) channels are Ca2+-permeable ion channels expressed in cardiomyocytes. An involvement of TRPC1 channels in cardiac diseases is widely established.
Molly E. Streiff   +8 more
doaj   +1 more source

Calcium signaling and transport machinery: Potential for development of stress tolerance in plants

open access: yesCurrent Plant Biology, 2022
Calcium (Ca2+) is an essential macronutrient as well as a second messenger in diverse biological processes in plants. Plants perceive various stimuli which leads to transient increase in cytosolic calcium [Ca2+]cyt levels, resulting in generation of Ca2+
Soma Ghosh   +3 more
doaj   +1 more source

Apamin Boosting of Synaptic Potentials in CaV2.3 R-Type Ca2+ Channel Null Mice. [PDF]

open access: yesPLoS ONE, 2015
SK2- and KV4.2-containing K+ channels modulate evoked synaptic potentials in CA1 pyramidal neurons. Each is coupled to a distinct Ca2+ source that provides Ca2+-dependent feedback regulation to limit AMPA receptor (AMPAR)- and NMDA receptor (NMDAR ...
Kang Wang   +4 more
doaj   +1 more source

How Merkel cells transduce mechanical stimuli: A biophysical model of Merkel cells.

open access: yesPLoS Computational Biology, 2023
Merkel cells combine with Aβ afferents, producing slowly adapting type 1(SA1) responses to mechanical stimuli. However, how Merkel cells transduce mechanical stimuli into neural signals to Aβ afferents is still unclear.
Fangtao Mao, Wenzhen Yang
doaj   +1 more source

Ca2+ Dependence of the Ca2+-selective TRPV6 Channel [PDF]

open access: yesJournal of Biological Chemistry, 2004
Microfluorimetry and patch-clamp experiments were performed on TRPV6-expressing HEK cells to determine whether this Ca(2+)-sensing Ca(2+) channel is constitutively active. Intact cells loaded with fura-2 had an elevated intracellular free Ca(2+) concentration ([Ca(2+)](i)), which decreased to the same level such as in non-transfected cells if external ...
Matthias, Bödding, Veit, Flockerzi
openaire   +2 more sources

The Physiopathologic Roles of Calcium Signaling in Podocytes

open access: yesFrontiers in Bioscience-Landmark, 2023
Calcium (Ca2+) plays a critical role in podocyte function. The Ca2+-sensitive receptors on the cell surface can sense changes in Ca2+ concentration, and Ca2+ flow into podocytes, after activation of Ca2+ channels (such as transient receptor potential ...
Yu-Chi Tu   +6 more
doaj   +1 more source

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