Results 31 to 40 of about 104,099 (211)

Sleep-wake sensitive mechanisms of adenosine release in the basal forebrain of rodents : an in vitro study [PDF]

open access: yes, 2013
Adenosine acting in the basal forebrain is a key mediator of sleep homeostasis. Extracellular adenosine concentrations increase during wakefulness, especially during prolonged wakefulness and lead to increased sleep pressure and subsequent rebound sleep.
Sims, Robert E.   +11 more
core   +2 more sources

A population of immature cerebellar parallel fibre synapses are insensitive to adenosine but are inhibited by hypoxia [PDF]

open access: yes, 2011
The purine adenosine plays an important role in a number of physiological and pathological processes and is neuroprotective during hypoxia and ischemia.
Mark J. Wall   +3 more
core   +1 more source

Regulation of Mitochondrial Dynamics by Proteolytic Processing and Protein Turnover

open access: yesAntioxidants, 2018
The mitochondrial network is a dynamic organization within eukaryotic cells that participates in a variety of essential cellular processes, such as adenosine triphosphate (ATP) synthesis, central metabolism, apoptosis and inflammation.
Sumaira Ali, Gavin P. McStay
doaj   +1 more source

Ionic basis of a differential effect of adenosine on refractoriness in rabbit AV nodal and atrial isolated myocytes [PDF]

open access: yes, 1999
Methods: The whole cell patch clamp technique was used to record action potentials and ion currents in AV nodal and left atrial myocytes isolated enzymatically from rabbit hearts.
Kane, K.A., Rankin, A.C., Workman, A.J.
core   +1 more source

Toxicity and stability of sodium cyanide in fresh water fish Nile tilapia

open access: yesWater Science, 2014
An experimental study was conducted to evaluate the effect of 0.129 NaCN mg/l for 28 days on the behavior of tilapia and the activities of adenosine triphosphatases enzyme (Na+/K+, Ca2+ and Mg2+-ATPase) within gill filaments, liver and muscles.
Enas M. Ramzy
doaj   +1 more source

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

open access: yes, 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   +9 more
core   +1 more source

Adenosine triphosphatase staining of dermatophytes

open access: yesActa Dermato-Venereologica, 1971
No abstract ...
W B, Shelley, L, Juhlin
openaire   +2 more sources

Crystal Structures of T. b. rhodesiense Adenosine Kinase Complexed with Inhibitor and Activator: Implications for Catalysis and Hyperactivation [PDF]

open access: yes, 2011
Background: The essential purine salvage pathway of Trypanosoma brucei bears interesting catalytic enzymes for chemotherapeutic intervention of Human African Trypanosomiasis.
Jason Greenwald   +17 more
core   +2 more sources

Adenosine Triphosphatase Activity of Tritrichomonas foetus [PDF]

open access: yesJournal of General Microbiology, 1979
Homogenates of Tritrichomonas foetus exhibited a Mg2+-dependent adenosine triphosphatase (ATPase) activity, with a pH optimum in Tris buffers of 8.2 to 8.3. The activity was not sensitive to oxygen. At high concentrations, quercetin and 4-chloro-7-nitrobenzofurazan inhibited ATPase activity in the cytoplasmic extract by 20 and 70%, respectively ...
D, Lloyd, D G, Lindmark, M, Müller
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]

open access: yes, 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   +14 more
core   +1 more source

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