Ser1928 phosphorylation by PKA stimulates the L-type Ca2+ channel CaV1.2 and vasoconstriction during acute hyperglycemia and diabetes

MA Nystoriak, M Nieves-Cintrón, T Patriarchi… - Science …, 2017 - science.org
Hypercontractility of arterial myocytes and enhanced vascular tone during diabetes are, in
part, attributed to the effects of increased glucose (hyperglycemia) on L-type CaV1. 2 …

Voltage-gated Cav1 channels in disorders of vision and hearing

MA Joiner, A Lee - Current molecular pharmacology, 2015 - ingentaconnect.com
Cav1 channels mediate L-type Ca2+ currents that trigger the exocytotic release of glutamate
from the specialized “ribbon” synapse of retinal photoreceptors (PRs) and cochlear inner …

Elementary properties of CaV1.3 Ca2+ channels expressed in mouse cochlear inner hair cells

V Zampini, SL Johnson, C Franz… - The Journal of …, 2010 - Wiley Online Library
Mammalian cochlear inner hair cells (IHCs) are specialized to process developmental
signals during immature stages and sound stimuli in adult animals. These signals are …

[HTML][HTML] AGs-coupled purinergic receptor boosts Ca2+ influx and vascular contractility during diabetic hyperglycemia

MP Prada, AU Syed, OR Buonarati, GR Reddy… - Elife, 2019 - elifesciences.org
Elevated glucose increases vascular reactivity by promoting L-type CaV1. 2 channel (LTCC)
activity by protein kinase A (PKA). Yet, how glucose activates PKA is unknown. We …

Exocytotic machineries of vestibular type I and cochlear ribbon synapses display similar intrinsic otoferlin-dependent Ca2+ sensitivity but a different coupling to Ca2+ …

PFY Vincent, Y Bouleau, S Safieddine… - Journal of …, 2014 - Soc Neuroscience
The hair cell ribbon synapses of the mammalian auditory and vestibular systems differ
greatly in their anatomical organization and firing properties. Notably, vestibular Type I hair …

Release from the cone ribbon synapse under bright light conditions can be controlled by the opening of only a few Ca2+ channels

TM Bartoletti, SL Jackman, N Babai… - Journal of …, 2011 - journals.physiology.org
Light hyperpolarizes cone photoreceptors, causing synaptic voltage-gated Ca2+ channels to
open infrequently. To understand neurotransmission under these conditions, we determined …

[HTML][HTML] K+ accumulation and clearance in the calyx synaptic cleft of type I mouse vestibular hair cells

P Spaiardi, E Tavazzani, M Manca, G Russo, I Prigioni… - Neuroscience, 2020 - Elsevier
Vestibular organs of Amniotes contain two types of sensory cells, named Type I and Type II
hair cells. While Type II hair cells are contacted by several small bouton nerve terminals …

[HTML][HTML] Fine Tuning of CaV1.3 Ca2+ Channel Properties in Adult Inner Hair Cells Positioned in the Most Sensitive Region of the Gerbil Cochlea

V Zampini, SL Johnson, C Franz, M Knipper… - PloS one, 2014 - journals.plos.org
Hearing relies on faithful signal transmission by cochlear inner hair cells (IHCs) onto
auditory fibres over a wide frequency and intensity range. Exocytosis at IHC ribbon …

An allosteric gating model recapitulates the biophysical properties of IK,L expressed in mouse vestibular type I hair cells

P Spaiardi, E Tavazzani, M Manca… - The Journal of …, 2017 - Wiley Online Library
Key points Vestibular type I and type II hair cells and their afferent fibres send information to
the brain regarding the position and movement of the head. The characteristic feature of type …

Responses of pigeon vestibular hair cells to cholinergic agonists and antagonists

GQ Li, MJ Correia - Brain research, 2011 - Elsevier
Acetylcholine (ACh) is the major neurotransmitter released from vestibular efferent terminals
onto hair cells and afferents. Previous studies indicate that the two classes of acetylcholine …