Results 101 to 110 of about 45,895 (246)

Activation of Extracellular-signal Regulated Kinase (ERK1/2) by Fluid Shear is Ca\u3csup\u3e2+\u3c/sup\u3e- and ATP-dependent in MC3T3-E1 Osteoblasts [PDF]

, 2008
To determine the role of Ca2+ signaling in activation of the Mitogen-Activated Protein Kinase (MAPK) pathway, we subjected MC3T3-E1 pre-osteoblastic cells to inhibitors of Ca2+ signaling during application of fluid shear stress (FSS).
Duncan, Randall L., Geist, Derik J., Genetos, Damian C., Ke, Hua Zhe, Li, Jiliang, Liu, Dawei, Shao, Ying, Turner, Charles H.   +7 more
core   +1 more source

ER localized bestrophin1 activates Ca2+ dependent ion channels TMEM16A and SK4 [PDF]

, 2009
Bestrophins form Ca2+ activated Cl- channels and regulate intercellular Ca2+ signaling1. We demonstrate that bestrophin 1 is localized in the endoplasmic reticulum (ER), where it physically interacts with stromal interacting molecule 1 (Stim1), the ER ...
Fadi AlDehni, Jiraporn Ousingsawat, Joana Almaç, Karl Kunzelmann, Rainer Schreiber, Ralph Witzgall, René   +6 more
core   +2 more sources

Ontogeny of purinergic receptor-regulated Ca2+ signaling in mouse cortical collecting duct epithelium [PDF]

, 2002
Changes in ATP-induced increase in {[}Ca2+], during collecting duct ontogeny were studied in primary monolayer cultures of mouse ureteric bud (UB) and cortical collecting duct (CCD) cells by Fura-PE3 fluorescence ratio imaging.
Borscheid, R., Braun, G. S., Horster, M. F., Huber, S. M., Tschop, J.   +4 more
core   +1 more source

Expression and characterization of purinergic receptors in rat middle meningeal artery-potential role in migraine.

PLoS ONE, 2014
The dura mater and its vasculature have for decades been central in the hypothesis of migraine and headache pathophysiology. Although recent studies have questioned the role of the vasculature as the primary cause, dural vessel physiology is still ...
Kristian Agmund Haanes, Lars Edvinsson
doaj   +1 more source

Pharmacological evaluation of non‐nucleotide purine derivatives as P2X7 antagonists for the treatment of neuroinflammation in traumatic brain injury

British Journal of Pharmacology, EarlyView.
Background and purpose Traumatic brain injury (TBI) is considered to be a leading cause of mortality and disability worldwide. After TBI, innate immunity is rapidly activated in response to damage‐associated molecular patterns, such as ATP release, recognised by P2X7 receptors.
Inés Valencia, Andrea Pastor‐Martínez, Céline Decouty‐Pérez, Ana Belen Lopez‐Rodriguez, María Álvarez‐Rubal, Eva Ramos, Francesco Calzaferri, Jorge Zamorano‐Fernández, Javier Giner‐García, Alexis J. Palpán‐Flores, Víctor Rodríguez‐Domínguez, Javier Rodríguez de Cía, Borja J. Hernández‐García, Alejandro Romero, Cristóbal de los Ríos, Javier Egea   +15 more
wiley   +1 more source

Transient and selective blockade of adenosine A1-receptors by 8-cyclopentyl-1,3-dipropylxanthine (DPCPX) causes sustained epileptiform activity in hippocampal CA3 neurons of guinea pigs [PDF]

, 1989
The effects of endogenously released adenosine on the excitability of hippocampal neurons were studied using the novel and highly selective adenosine A1-receptor antagonist 8-cyclopentyl-1,3-dipropylxanthine (DPCPX).
Alzheimer, Christian, Sutor, Bernd, Ten Bruggencate, Gerrit   +2 more
core   +1 more source

Structure–activity relationship of the allosteric effects of ivermectin at human P2X4 and GABAA receptors

British Journal of Pharmacology, EarlyView.
Abstract Background and purpose Positive allosteric modulation of the P2X4 receptor is a potential route to providing cardiovascular benefit through enhancing flow‐dependent arterial vasodilation and providing cardioprotection. However, ligands that selectively enhance P2X4 activity are absent.
Jessica L. Meades, Marcella Bassetto, Marius C. Staiculescu, Gayathri Swaminath, Samuel J. Fountain   +4 more
wiley   +1 more source

Activity-dependent release of Adenosine: a critical re-evaluation of mechanism [PDF]

, 2008
Adenosine is perhaps the most important and universal modulator in the brain. The current consensus is that it is primarily produced in the extracellular space from the breakdown of previously released ATP.
Dale, Nicholas, Wall, Mark J.
core   +2 more sources

Effects of the P2RX4 antagonist BR11595 in a guinea pig model of chronic asthma

British Journal of Pharmacology, EarlyView.
Abstract Background and Purpose Asthma is characterized by airway hyperresponsiveness (AHR), allergic inflammation, and airway remodelling. Although recent studies have shown that asthma pathophysiology involves P2X4 receptor activation, a potential link with chronic asthma remains to be explored.
Dan Li, Hoeke A. Baarsma, Melissa Mol‐van der Veen, Vicky Verschut, Kimberley S. Belfor, Tanja de Boer, Harm Maarsingh, Oliver Martin Fischer, Carolin Ebert, Hana Cernecka, Muriel Lizé, Reinoud Gosens, Loes Kistemaker, Martina Schmidt   +13 more
wiley   +1 more source

The cellular distribution of P2X7, P2Y6, and P2Y12 during or after pilocarpine-induced status epilepticus and literature review

Brain Circulation
BACKGROUND: When a seizure occurs, the distribution of purine receptors in different cell types at various time points remains poorly understood. Our literature review revealed that P2X7, P2Y6, and P2Y12 are expressed in different cells during epilepsy ...
Yue Li, Fengru Tang, Yumin Luo
doaj   +1 more source