Results 111 to 120 of about 489,446 (226)

The Multi-center Evaluation of the Accuracy of the Contrast MEdium INduced Pd/Pa RaTiO in Predicting FFR (MEMENTO-FFR) Study. [PDF]

open access: yes, 2016
AIMS: Adenosine administration is needed for the achievement of maximal hyperaemia fractional flow reserve (FFR) assessment. The objective was to test the accuracy of Pd/Pa ratio registered during submaximal hyperaemia induced by non-ionic contrast ...
Amabile, N   +5 more
core   +1 more source

Coulomb Interaction as the Source of Muscle Force [PDF]

open access: yesarXiv, 2007
Myosin motor is the machine, which performs mechanical work in the course of adenosine triphosphate molecule hydrolysis and myosin head conformations accompanying this process. For displacement of individual fragments of large molecule relative to each other to arise and work to be performed, force must be born inside protein.
arxiv  

Enzymatic regeneration of adenosine triphosphate cofactor [PDF]

open access: yes, 1974
Regenerating adenosine triphosphate (ATP) from adenosine diphosphate (ADP) by enzymatic process which utilizes carbamyl phosphate as phosphoryl donor is technique used to regenerate expensive cofactors.
Marshall, D. L.
core   +1 more source

Simultaneous quantification of 12 different nucleotides and nucleosides released from renal epithelium and in human urine samples using ion-pair reversed-phase HPLC [PDF]

open access: yes, 2012
Nucleotides and nucleosides are not only involved in cellular metabolism but also act extracellularly via P1 and P2 receptors, to elicit a wide variety of physiological and pathophysiological responses through paracrine and autocrine signalling pathways.
Alberto Contreras-Sanz   +60 more
core   +2 more sources

The A3 Adenosine Receptor: History and Perspectives

open access: yesPharmacological Reviews, 2015
By general consensus, the omnipresent purine nucleoside adenosine is considered a major regulator of local tissue function, especially when energy supply fails to meet cellular energy demand.
P. Borea   +6 more
semanticscholar   +1 more source

Pilot study of electrochemical reduction of selected nucleotides and double-stranded DNA at pristine micro-/ultrananocrystalline boron-doped diamond electrodes at very negative potentials [PDF]

open access: yes
Pristine polycrystalline boron-doped diamond electrodes (BDDEs) -- microcrystalline (B-MCDE) and ultrananocrystalline (B-UNCDE) were applied for the electrochemical reduction of several selected purine nucleotides -- Guanosine 5'-monophosphate (GMP), 2'-Deoxyguanosine 5'-monophosphate (dGMP), Adenosine 5'-monophosphate (AMP), Adenosine 5'-diphosphate ...
arxiv   +1 more source

Impulse oscillometry identifies peripheral airway dysfunction in children with adenosine deaminase deficiency. [PDF]

open access: yes, 2015
Adenosine deaminase-deficient severe combined immunodeficiency (ADA-SCID) is characterized by impaired T-, B- and NK-cell function. Affected children, in addition to early onset of infections, manifest non-immunologic symptoms including pulmonary ...
Candotti, Fabio   +6 more
core   +2 more sources

An Adenosine-Mediated Glial-Neuronal Circuit for Homeostatic Sleep

open access: yesJournal of Neuroscience, 2016
Sleep homeostasis reflects a centrally mediated drive for sleep, which increases during waking and resolves during subsequent sleep. Here we demonstrate that mice deficient for glial adenosine kinase (AdK), the primary metabolizing enzyme for adenosine ...
Theresa E. Bjorness   +8 more
semanticscholar   +1 more source

Kinetic Analysis of Protein Assembly on the Basis of the Center Manifold around the Critical Point [PDF]

open access: yesarXiv, 2015
Protein assembly plays an important role in the regulation of biological systems. The cytoskeleton assembly activity is provided by the binding cofactors GTP (guanidine triphosphate) or ATP(adenosine triphosphate) to monomeric protein, and is initiated by assembling the monomeric proteins.
arxiv  

Adenosine to inosine editing by ADAR2 requires formation of a ternary complex on the GluR-B R/G site [PDF]

open access: yes, 2002
RNA editing by members of the ADAR (adenosine deaminase that acts on RNA) enzyme family involves hydrolytic deamination of adenosine to inosine within the context of a double-stranded pre-mRNA substrate.
Collins, Cynthia H.   +2 more
core   +1 more source

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