Results 41 to 50 of about 486,199 (215)

Wakefulness affects synaptic and network activity by increasing extracellular astrocyte-derived adenosine [PDF]

, 2012
Loss of sleep causes an increase in sleep drive and deficits in hippocampal-dependent memory. Both of these responses are thought to require activation of adenosine A1 receptors (adorA1Rs) and release of transmitter molecules including ATP, which is ...
Schmitt, L. Ian, R. E. Sims, Sims, Robert E., P. G. Haydon, Dale, Nicholas, Sims, Robert, Haydon, Philip G, L. I. Schmitt, N. Dale, Schmitt, L Ian   +9 more
core   +1 more source

Adenosine and Migraine [PDF]

Canadian Journal of Neurological Sciences / Journal Canadien des Sciences Neurologiques, 1998
ABSTRACT:Background:Adenosine is a powerful natural vasodilator that participates in the control of cerebral and meningeal blood flow. In this context, it could be involved in the pathophysiology of migraine, since it was previously reported that intravenous adenosine can precipitate crises in migraine patients.Methods:We have investigated circulating ...
R, Guieu, C, Devaux, H, Henry, G, Bechis, J, Pouget, D, Mallet, F, Sampieri, M, Juin, R, Gola, H, Rochat   +9 more
openaire   +2 more sources

Intracellular ATP influences synaptic plasticity in area CA1 of rat hippocampus via metabolism to adenosine and activity-dependent activation of adenosine A1 receptors [PDF]

, 2011
The extent to which brain slices reflect the energetic status of the in vivo brain has been a subject of debate. We addressed this issue to investigate the recovery of energetic parameters and adenine nucleotides in rat hippocampal slices and the ...
D. Grahame Hardie, Hardie, D. G. (D. Grahame), Naomi Pentland, Simon Hawley, Frenguelli, Bruno, Doney, Alexander S., Pentland, Naomi, Frenguelli, Bruno G., Stephanie zur Nedden, Hawley, Simon, Alexander S. Doney, Bruno G. Frenguelli, Hardie, D. Grahame, Doney, Alexander S.; id_orcid, Zur Nedden, Stephanie   +14 more
core   +1 more source

Adenosine Dysfunction and Adenosine Kinase in Epileptogenesis [PDF]

The Open Neuroscience Journal, 2010
Traditionally, epilepsy has been considered to be a disorder of neuronal dysfunction. Based on this dogma, drug development efforts have largely focused on neurocentric model systems to screen for compounds that affect the function of neurons. Unfortunately, about 30% of all patients with epilepsy - or more than 20 million worldwide - are refractory to
openaire   +2 more sources

Biosensor measurement of purine release from cerebellar cultures and slices [PDF]

, 2010
We have previously described an action-potential and Ca2+-dependent form of adenosine release in the molecular layer of cerebellar slices. The most likely source of the adenosine is the parallel fibres, the axons of granule cells. Using microelectrode
Eason, Robert, Robert Eason, Dale, Nicholas, Wall, Mark J., Mark Wall, Nicholas Dale   +5 more
core   +1 more source

Adenosine and adenosine antagonism in asthma [PDF]

Thorax, 1998
I read with interest the excellent update on adenosine by Polosa and Holgate.1 An important use of this challenge agent is demonstrated and adenosine antagonism as a potential treatment for asthma is revisited. However, the role of adenosine as a mediator of asthma is somewhat inconsistent with several functional observations.
C. PERSSON;, S. T HOLGATE
openaire   +1 more source

Adenosine and preeclampsia [PDF]

Molecular Aspects of Medicine, 2017
Adenosine is an endogenous nucleoside with pleiotropic effects in different physiological processes including circulation, renal blood flow, immune function, or glucose homeostasis. Changes in adenosine membrane transporters, adenosine receptors, and corresponding intracellular signalling network associate with development of pathologies of pregnancy ...
Salsoso, Rocío, Farias, Marcelo, Gutierrez, Jaime, Pardo, Fabian, Chiarello, Delia I., Toledo, Fernando, Leiva, Andrea, Mate, Alfonso, Vazquez, Carmen M., Sobrevia, Luis   +9 more
openaire   +7 more sources

Erythrocytes Induce Endothelial Injury in Type 2 Diabetes Through Alteration of Vascular Purinergic Signaling

Frontiers in Pharmacology, 2020
It is well established that altered purinergic signaling contributes to vascular dysfunction in type 2 diabetes (T2D). Red blood cells (RBCs) serve as an important pool for circulating ATP and the release of ATP from RBCs in response to physiological ...
Ali Mahdi, Yahor Tratsiakovich, John Tengbom, Tong Jiao, Lara Garib, Michael Alvarsson, Jiangning Yang, John Pernow, John Pernow, Zhichao Zhou   +9 more
doaj   +1 more source

The CD73 immune checkpoint promotes tumor cell metabolic fitness

eLife, 2023
CD73 is an ectonucleotidase overexpressed on tumor cells that suppresses anti-tumor immunity. Accordingly, several CD73 inhibitors are currently being evaluated in the clinic, including in large randomized clinical trials.
David Allard, Isabelle Cousineau, Eric H Ma, Bertrand Allard, Yacine Bareche, Hubert Fleury, John Stagg   +6 more
doaj   +1 more source

Adenosine A1 receptor activation mediates the developmental shift at layer 5 pyramidal cell synapses and is a determinant of mature synaptic strength [PDF]

, 2013
During the first postnatal month glutamatergic synapses between layer 5 pyramidal cells in the rodent neocortex switch from an immature state exhibiting high probability of neurotransmitter release, large unitary amplitude and synaptic depression to a ...
Richardson, Magnus J. E., Kerr, Michael I., Wall, Mark J.   +2 more
core   +1 more source