Results 91 to 100 of about 1,279,181 (240)

Exploring the Impact of Urolithins A and B on Muscle Health: A Transcriptomic Analysis in Human Myotubes

open access: yesJournal of Cachexia, Sarcopenia and Muscle, Volume 17, Issue 5, October 2026.
ABSTRACT Background Urolithin A (UA) and urolithin B (UB) are gut microbiota‐derived metabolites of ellagitannins reported to influence mitochondrial function, inflammation and muscle metabolism. Their comparative transcriptomic effects in human skeletal muscle cells remain undefined.
Yves Henrotin   +8 more
wiley   +1 more source

The disease mutation A77V in Ryanodine receptor RyR2 induces changes in energy conduction pathways in the protein [PDF]

open access: yes, 2011
Energetically responsive residues of the 217 amino acid N-terminal domain of the cardiac Ryanodine receptor RyR2 are identified by a simple elastic net model. These residues lie along a hydrogen bonded path through the protein.
Nazan Walpoth, Burak Erman
core  

Degradation of inositol 1,3,4,5-tetrakisphosphates by porcine brain cytosol yields inositol 1,3,4-trisphosphate and inositol 1,4,5-trisphosphate

open access: yes, 1988
Inositol 1,3,4,5-tetrakisphosphates (Ins(1,3,4,5)P4), 32P-labelled in positions 4 and 5 were prepared enzymatically, using [4-32P]-phosphatidylinositol 4-phosphate (PtdInsP) and [5-32P]phosphatidylinositol 4,5-bisphosphate (PtdInsP2) as substrates ...
Rosenthal, W.   +5 more
core   +1 more source

Astrocytic Ca2+ signaling mediated by the endoplasmic reticulum in health and disease

open access: yesJournal of Pharmacological Sciences, 2020
Astrocytes generate robust intracellular Ca2+ signals that are assumed to be key regulators of astrocytic function. Among various Ca2+ mobilization mechanisms, Ca2+ release from the endoplasmic reticulum (ER) via the inositol 1,4,5-trisphosphate receptor
Yohei Okubo
doaj   +1 more source

The Role of Neuropeptide Y in Dental Pulp: Balancing Neurogenic Inflammation and Pain Modulation

open access: yesInternational Endodontic Journal, Volume 59, Issue 10, Page 2028-2045, October 2026.
ABSTRACT Background Dental pulp is a densely innervated, low‐compliance tissue in which neurogenic inflammation can rapidly escalate into oedema, raised intrapulpal pressure, microvascular compromise, and pain. While Substance P (SP) and Calcitonin gene‐related peptide (CGRP) are well‐established drivers of pulp vasodilation, the Neuroopeptide Y (NPY ...
Javier Caviedes‐Bucheli   +3 more
wiley   +1 more source

Development of inositol-based antagonists for the D-myo-inositol 1,4,5-trisphosphate receptor

open access: yes, 2011
The syntheses of four D-myo-inositol 1,4,5-trisphosphate (InsP(3)) derivatives, incorporating phosphate bioisosteres at the 5-position, are reported. The methyl phosphate ester and sulfate derivatives retain InsP(3) receptor (InsP(3)R) agonist activity ...
Bultynck, G   +28 more
core   +1 more source

Relaxin‐2: Shaping the Proteomic Landscape of Skeletal Muscle Physiology, Glucose Trafficking, and Mitochondrial Function in Rat

open access: yesThe FASEB Journal, Volume 40, Issue 18, 30 September 2026.
Cardioprotective hormone relaxin‐2 showed relevant effects on rat skeletal muscle by altering proteins linked to muscle function, regeneration, differentiation, mitochondrial function, glucose metabolism, and structural integrity and organization. Specifically, relaxin‐2 reduced the expression of 95 proteins, increased 32, and elicited unique proteins ...
Xocas Vázquez‐Abuín   +11 more
wiley   +1 more source

Inositol 1,4,5-Trisphosphate Receptor Phosphorylation in Breast Cancer

open access: yesTumor Biology, 2005
The aim of this study was to establish the type(s) of inositol 1,4,5-trisphosphate receptors (IP3Rs) in T47D breast cancer cells that regulate intracellular calcium (Ca2+) and whether they interact with cyclin (Cy), an important regulator of cyclin-dependent kinases (cdk), during cell cycle progression.
Damien, Soghoian   +4 more
openaire   +2 more sources

Inositol 1,4,5‐trisphosphate receptor determines intracellular Ca2+ concentration in Trypanosoma cruzi throughout its life cycle

open access: yesFEBS Open Bio, 2016
Regulation of intracellular Ca2+ concentration ([Ca2+]i) is vital for eukaryotic organisms. Recently, we identified a Ca2+ channel (TcIP3R) associated with intracellular Ca2+ stores in Trypanosoma cruzi, the parasitic protist that causes Chagas disease ...
Muneaki Hashimoto   +9 more
doaj   +1 more source

Hormone-Induced Calcium Oscillations Depend on Cross-Coupling with Inositol 1,4,5-Trisphosphate Oscillations

open access: yesCell Reports, 2014
Receptor-mediated oscillations in cytosolic Ca2+ concentration ([Ca2+]i) could originate either directly from an autonomous Ca2+ feedback oscillator at the inositol 1,4,5-trisphosphate (IP3) receptor or as a secondary consequence of IP3 oscillations ...
Lawrence D. Gaspers   +8 more
doaj   +1 more source

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