Results 61 to 70 of about 2,688,953 (298)

Kinetics and mapping of Ca-driven calmodulin conformations on skeletal and cardiac muscle ryanodine receptors

Nature Communications
Calmodulin transduces [Ca2+] information regulating the rhythmic Ca2+ cycling between the sarcoplasmic reticulum and cytoplasm during contraction and relaxation in cardiac and skeletal muscle.
Robyn T. Rebbeck, Bengt Svensson, Jingyan Zhang, Montserrat Samsó, David D. Thomas, Donald M. Bers, Razvan L. Cornea   +6 more
doaj   +1 more source

β-adrenergic inhibition prevents action potential and calcium handling changes during regional myocardial ischemia [PDF]

, 2017
β-adrenergic receptor (β-AR) blockers may be administered during acute myocardial infarction (MI), as they reduce energy demand through negative chronotropic and inotropic effects and prevent ischemia-induced arrhythmogenesis. However, the direct effects
Domondon, Philip, Habecker, Beth A., Lang, Di, Murphy, Shannon R., Myles, Rachel C., Ripplinger, Crystal M., Wang, Lianguo, Wang, Zhen   +7 more
core   +3 more sources

Additive‐Manufactured, Multifunctional Bioreactor Technology for Dynamic Culture of 3D Bioprinted Tissue Models

Advanced Materials Technologies, EarlyView.
We introduce an additively manufactured bioreactor with a perfusion flow system and integrated temperature and pH sensors for skeletal muscle tissue biofabrication. The bioreactor's performance was evaluated by assessing the viability, spreading of the myoblast cells in a printed scaffold, and contraction of the isolated murine musculi interossei ...
Lys Sprenger, Johann Schorzmann, Hsuan‐Heng Lu, Muhammad Osama, Julian Bauer, Michael Haug, Oliver Friedrich, Aldo R. Boccaccini, Frank Döpper, Sahar Salehi   +9 more
wiley   +1 more source

Calcium-induced calcium release and type 3 ryanodine receptors modulate the slow afterhyperpolarising current, sIAHP, and its potentiation in hippocampal pyramidal neurons.

PLoS ONE, 2020
The slow afterhyperpolarising current, sIAHP, is a Ca2+-dependent current that plays an important role in the late phase of spike frequency adaptation.
Angelo Tedoldi, Petra Ludwig, Gianluca Fulgenzi, Hiroshi Takeshima, Paola Pedarzani, Martin Stocker   +5 more
doaj   +1 more source

Endoplasmic Reticulum Geometry Dictates Neuronal Bursting via Calcium Store Refill Rates and Exposes Selective Neuronal Vulnerability

Advanced Science, EarlyView.
The ER's continuous tubular network is maintained by ER‐shaping proteins whose mutation or dysregulation contributes to neurodegenerative diseases. Here, we show that ER morphology sets the speed of Ca2+ store replenishment between firing events. Disrupting ER continuity slows intra‐ER Ca2+ redistribution from extracellular refill (SOCE) sites, driving
Valentina Davi, Pierre Parutto, Yuyi Zhang, Tasuku Konno, Cecile Crapart, Raquel Pereira, John P. Franklin, Mosab Ali Awadelkareem, Daniel C Maddison, Michael J. Devine, Edgar R. Gomes, Joseph Chambers, Elena Koslover, Edward Avezov   +13 more
wiley   +1 more source

When, where and how? Focus on neuronal calcium dysfunctions in Alzheimer's Disease. [PDF]

, 2016
Alzheimer\u2019s disease (AD), since its characterization as a precise form of dementia with its own pathological hallmarks, has captured scientists\u2019 attention because of its complexity.
AGOSTINI, MARIO, FASOLATO, CRISTINA
core   +1 more source

Crystal structures of ryanodine receptor SPRY1 and tandem-repeat domains reveal a critical FKBP12 binding determinant

Nature Communications, 2015
Ryanodine receptors (RyRs) form calcium release channels located in the membranes of the sarcoplasmic and endoplasmic reticulum. RyRs play a major role in excitation-contraction coupling and other Ca2+-dependent signalling events, and consist of several ...
Z. Yuchi, S. M. W. K. Yuen, K. Lau, Ainsley Q. Underhill, Răzvan L. Cornea, J. Fessenden, F. van Petegem   +6 more
semanticscholar   +1 more source

Illuminating the Intracellular World: Breakthroughs in Nanoscale Optoelectronics

Advanced Electronic Materials, EarlyView.
This perspective explores optoelectronic biointerfaces spanning macroscale flexible devices to nanoscale intracellular systems, emphasizing their integration across dimensions. It examines capacitive, Faradaic, and photothermal mechanisms that enable light‐driven control of cellular activity and highlights key material and design challenges in ...
Tania Assaf, Menahem Y. Rotenberg
wiley   +1 more source

Differential Downregulation of β1‐Adrenergic Receptor Signaling in the Heart

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease
Background Chronic sympathetic stimulation drives desensitization and downregulation of β1 adrenergic receptor (β1AR) in heart failure. We aim to explore the differential downregulation subcellular pools of β1AR signaling in the heart.
Bing Xu, Sherif Bahriz, Victoria R. Salemme, Ying Wang, Chaoqun Zhu, Meimi Zhao, Yang K. Xiang   +6 more
doaj   +1 more source

Structural and functional conservation of key domains in InsP3 and ryanodine receptors. [PDF]

, 2012
Inositol-1,4,5-trisphosphate receptors (InsP(3)Rs) and ryanodine receptors (RyRs) are tetrameric intracellular Ca(2+) channels. In each of these receptor families, the pore, which is formed by carboxy-terminal transmembrane domains, is regulated by ...
Ames, James B, Dale, Philippa, Ikura, Mitsuhiko, Ishiyama, Noboru, Khan, Samir A, Li, Congmin, Rossi, Ana M, Seo, Min-Duk, Stathopulos, Peter B, Taylor, Colin W, Velamakanni, Saroj   +10 more
core   +1 more source