Results 41 to 50 of about 2,365,951 (330)

ATP- and Adenosine-Mediated Signaling in the Central Nervous System: Adenosine Stimulates Glutamate Release From Astrocytes via A2a Adenosine Receptors

Journal of Pharmacological Sciences, 2004
Adenosine enhanced intracellular Ca2+ concentrations in astrocytes via A2a adenosine receptors involving protein kinase A (PKA) activation. The Ca2+ rise is inhibited by brefeldin A, an inhibitor of vesicular transport; but not by neomycin and U73122 ...
Tomoyuki Nishizaki
doaj   +1 more source

Ryanodine receptor dispersion disrupts Ca2+ release in failing cardiac myocytes

eLife, 2018
Reduced cardiac contractility during heart failure (HF) is linked to impaired Ca2+ release from Ryanodine Receptors (RyRs). We investigated whether this deficit can be traced to nanoscale RyR reorganization.
Terje R. Kolstad, J. van den Brink, N. Macquaide, P. Lunde, M. Frisk, J. M. Aronsen, E. Nordén, A. Cataliotti, I. Sjaastad, O. Sejersted, A. Edwards, G. Lines, W. Louch   +12 more
semanticscholar   +1 more source

Acute RyR1 Ca2+ leak enhances NADH-linked mitochondrial respiratory capacity

Nature Communications, 2021
Ryanodine receptor type 1 (RyR1) are involved in skeletal muscle contraction. Here, the authors show that a transient calcium leak in response to exercise-induced post translational modifications of RyR1 causes mitochondrial remodeling to improve ...
Nadège Zanou, Haikel Dridi, Steven Reiken, Tanes Imamura de Lima, Chris Donnelly, Umberto De Marchi, Manuele Ferrini, Jeremy Vidal, Leah Sittenfeld, Jerome N. Feige, Pablo M. Garcia-Roves, Isabel C. Lopez-Mejia, Andrew R. Marks, Johan Auwerx, Bengt Kayser, Nicolas Place   +15 more
doaj   +1 more source

Functional characterization of orbicularis oculi and extraocular muscles [PDF]

, 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, Palmowski-Wolfe, Anja, Sekulic-Jablanovic, Marijana, Treves, Susan, Ullrich, Nina D., Zorzato, Francesco   +5 more
core   +2 more sources

Estradiol-Mediated Axogenesis of Hypothalamic Neurons Requires ERK1/2 and Ryanodine Receptors-Dependent Intracellular Ca2+ Rise in Male Rats

Frontiers in Cellular Neuroscience, 2019
17β-estradiol (E2) induces axonal growth through extracellular signal-regulated kinase 1 and 2 (ERK1/2)-MAPK cascade in hypothalamic neurons of male rat embryos in vitro, but the mechanism that initiates these events is poorly understood.
Lucas E. Cabrera Zapata, Mariana Bollo, María Julia Cambiasso, María Julia Cambiasso   +3 more
doaj   +1 more source

A bivalent remipede toxin promotes calcium release via ryanodine receptor activation

Nature Communications, 2023
Insect toxins with tandem repeats of neurotoxin domains have been found with enhanced receptor avidity. Here, the authors describe a bivalent toxin from remipede venom that targets ryanodine receptors, a rare target for animal venoms.
Michael J. Maxwell, Chris Thekkedam, Cedric Lamboley, Yanni K.-Y. Chin, Theo Crawford, Jennifer J. Smith, Junyu Liu, Xinying Jia, Irina Vetter, Derek R. Laver, Bradley S. Launikonis, Angela Dulhunty, Eivind A. B. Undheim, Mehdi Mobli   +13 more
doaj   +1 more source

Interval training normalizes cCardiomyocyte function, diastolic Ca²⁺ control, and SR Ca²⁺ release synchronicity in a mouse model of diabetic cardiomyopathy [PDF]

, 2009
In the present study we explored the mechanisms behind excitation-contraction (EC)-coupling defects in cardiomyocytes from mice with type-2 diabetes (db/db), and determined whether 13-weeks of aerobic interval training could restore cardiomyocyte Ca2 ...
Aasum, E., Catalucci, D., Ceci, M., Condorelli, G., Høydal, M.A., Kemi, O.J., Larsen, T., Rolim, N., Smith, G.L., Stølen, T.O., Wisløff, U.   +10 more
core   +2 more sources

Cardiac Specific Gene Expression Changes in Long Term Culture of Murine Mesenchymal Stem Cells [PDF]

, 2011
Murine MSCs are a readily available source of adult stem cells enabling extensive in vitro study of this cell population. MSCs have been described as multipotent, and have been proven capable of differentiation into several connective tissue types ...
Argyle, D.J., Argyle, S.A., Bennett, D., Corcoran, B.M., Hodgkiss-Geere, H.M., Milne, E., Whitelaw, B.   +6 more
core   +2 more sources

Presenilin-ryanodine receptor connection [PDF]

Proceedings of the National Academy of Sciences, 2013
The Presenilins (PS) gene family is composed of two members: PS1 and PS2. Mutations in PSs are linked to familial Alzheimer's disease (FAD) (1). PSs are the catalytic subunits of the γ-secretase multimolecular complex, which mediates the intramembranous cleavage of many type I membrane proteins, including amyloid precursor protein (APP) and Notch (2, 3)
Luciano, D'Adamio, Pablo E, Castillo
openaire   +2 more sources

Role of Inositol-1,4,5-Trisphosphate Receptor in the Regulation of Calcium Transients in Neonatal Rat Ventricular Myocytes

Journal of Pharmacological Sciences, 2014
This study determined the regulatory effect of inositol 1,4,5-trisphosphate receptors (IP3Rs) on the basal Ca2+ transients in cardiomyocytes. In cultured neonatal rat ventricular myocytes (NRVMs) at different densities, we used confocal microscopy to ...
Zheng Zeng, Heping Zhang, Na Lin, Man Kang, Yuanyuan Zheng, Chen Li, Pingxiang Xu, Yongquan Wu, Dali Luo   +8 more
doaj   +1 more source