Results 81 to 90 of about 28,867 (291)

Mice null for calsequestrin 1 exhibit deficits in functional performance and sarcoplasmic reticulum calcium handling. [PDF]

open access: yesPLoS ONE, 2011
In skeletal muscle, the release of calcium (Ca(2+)) by ryanodine sensitive sarcoplasmic reticulum (SR) Ca(2+) release channels (i.e., ryanodine receptors; RyR1s) is the primary determinant of contractile filament activation.
Rotimi O Olojo   +5 more
doaj   +1 more source

Ryanodine receptors [PDF]

open access: yes, 2011
Excitation-contraction coupling involves the faithful conversion of electrical stimuli to mechanical shortening in striated muscle cells, enabled by the ubiquitous second messenger, calcium.
Capes E Michelle   +2 more
core   +2 more sources

Mass Spectrometry Structural Proteomics Enabled by Limited Proteolysis and Cross‐Linking

open access: yesMass Spectrometry Reviews, EarlyView.
ABSTRACT The exploration of protein structure and function stands at the forefront of life science and represents an ever‐expanding focus in the development of proteomics. As mass spectrometry (MS) offers readout of protein conformational changes at both the protein and peptide levels, MS‐based structural proteomics is making significant strides in the
Haiyan Lu   +4 more
wiley   +1 more source

Contribution of NAADP to Glutamate-Evoked Changes in Ca2+ Homeostasis in Mouse Hippocampal Neurons

open access: yesFrontiers in Cell and Developmental Biology, 2020
Nicotinic acid adenine dinucleotide phosphate (NAADP) is a second messenger that evokes calcium release from intracellular organelles by the engagement of calcium release channels, including members of the Transient Receptor Potential (TRP) family, such ...
Julia Hermann   +15 more
doaj   +1 more source

Dependency of calcium alternans on ryanodine receptor refractoriness. [PDF]

open access: yesPLoS ONE, 2013
BACKGROUND: Rapid pacing rates induce alternations in the cytosolic calcium concentration caused by fluctuations in calcium released from the sarcoplasmic reticulum (SR).
Enric Alvarez-Lacalle   +5 more
doaj   +1 more source

Multi‐Targeting Ligands as Prospective Therapeutics for Alzheimer's Disease, a Prevalent Neurodegenerative Disorder: Mechanistic Insights, Emerging Targets and Drug Discovery Campaigns

open access: yesMedicinal Research Reviews, EarlyView.
ABSTRACT Alzheimer's disease (AD) is a debilitating neurodegenerative condition characterized by progressive cognitive impairment, memory deterioration, and neuronal dysfunction. Its complex pathophysiology involves multiple interlinked processes, including amyloid‐β (Aβ) aggregation, tau hyperphosphorylation, oxidative stress, neuroinflammation ...
Amandeep Thakur   +6 more
wiley   +1 more source

Voltage sensing mechanism in skeletal muscle excitation-contraction coupling: coming of age or midlife crisis?

open access: yesSkeletal Muscle, 2018
The process by which muscle fiber electrical depolarization is linked to activation of muscle contraction is known as excitation-contraction coupling (ECC).
Erick O. Hernández-Ochoa   +1 more
doaj   +1 more source

Intracellular Ca 2+ sensing: role in calcium homeostasis and signaling [PDF]

open access: yes, 2017
Ca2+ is a ubiquitous intracellular messenger that controls diverse cellular functions but can become toxic and cause cell death. Selective control of specific targets depends on spatiotemporal patterning of the calcium signal and decoding it by multiple,
Bagur, Rafaela, Hajnóczky, György
core   +1 more source

Accelerating virtual patient generation with a Bayesian optimization and machine learning surrogate model

open access: yesCPT: Pharmacometrics &Systems Pharmacology, Volume 14, Issue 3, Page 486-494, March 2025.
Abstract The pharmaceutical industry has increasingly adopted model‐informed drug discovery and development (MID3) to enhance productivity in drug discovery and development. Quantitative systems pharmacology (QSP), which integrates drug action mechanisms and disease complexities to predict clinical endpoints and biomarkers is central to MID3.
Hiroaki Iwata, Ryuta Saito
wiley   +1 more source

Functional characterization of orbicularis oculi and extraocular muscles [PDF]

open access: yes, 2016
The orbicularis oculi are the sphincter muscles of the eyelids and are involved in modulating facial expression. They differ from both limb and extraocular muscles (EOMs) in their histology and biochemistry. Weakness of the orbicularis oculi muscles is a
Goldblum, David   +5 more
core   +2 more sources

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