Results 101 to 110 of about 489,446 (226)

Effect of adenosine or adenosine triphosphate on antidromic tachycardia

Journal of the American College of Cardiology, 1994
This study was designed to determine the effect of adenosine or adenosine triphosphate (ATP) on antidromic tachycardia.Adenosine and adenosine triphosphate are useful for differential diagnosis of wide QRS tachycardia. It has been believed that tachycardia termination caused by these agents is due to the preferential depressive effect on the ...
Raymond Yee, Ranjan K. Thakur, Huagui G. Li, Carlos A. Morillo, Marco Zardini, George J. Klein   +5 more
openaire   +3 more sources

Meta-analysis of death and myocardial infarction in the DEFINE-FLAIR and iFR-SWEDEHEART trials: a hypothesis generating note of caution [PDF]

, 2017
In patients with coronary heart disease, revascularization can improve symptoms and in certain high-risk subgroups may improve prognosis. Coronary angiography provides anatomical information and the physiological significance of a stenosis can be ...
Berry, Colin, McClure, John D., Oldroyd, Keith G.   +2 more
core   +1 more source

Adenosine and adenosine receptors: Newer therapeutic perspective

Indian Journal of Pharmacology, 2009
Adenosine, a purine nucleoside has been described as a 'retaliatory metabolite' by virtue of its ability to function in an autocrine manner and to modify the activity of a range of cell types, following its extracellular accumulation during cell stress or injury.
S M Manjunath, Pranavkumar M. Sakhare
openaire   +4 more sources

Excited state dynamics in DNA double helices [PDF]

arXiv, 2006
Recent ultrafast experiments have implicated that intrachain base-stacking rather than base-pairing mediate the fate and transport of photoexcited species in DNA chains. Here use an $SU(2)\otimes SU(2)$ lattice model which incorporates both intrachain and interchain electronic interactions to study the quantum mechanical evolution of an initial ...
arxiv  

Fetal oxygen delivery and consumption and blood gases in relation to gestational age [PDF]

arXiv, 2021
Fetal oxygen delivery and consumption and blood gases in relation to gestational age. Oxygen crosses the placenta by diffusion and placental permeability to O$_2$ is high. Thus, the fetus receives adequate amounts, but vascular Po$_2$ is much lower than after birth. Studies of sustained fetal hypoxemia and acute 40-45% hemorrhage show that hypoxemia is
arxiv  

Lung Injury Pathways: Adenosine Receptor 2B Signaling Limits Development of Ischemic Bronchiolitis Obliterans Organizing Pneumonia [PDF]

, 2017
Purpose/Aim of the Study: Adenosine signaling was studied in bronchiolitis obliterans organizing pneumonia (BOOP) resulting from unilateral lung ischemia. Materials and Methods: Ischemia was achieved by either left main pulmonary artery or complete hilar
Auchampach, John, Audi, Said H., Densmore, John C., Dwinell, Melinda R., Geurts, Aron M., Jacobs, Elizabeth R., Jeziorczak, Paul M., Medhora, Meetha, Nayak, Shraddha, Schaid, Terry R.   +9 more
core   +1 more source

Disinhibition of hippocampal CA3 neurons induced by suppression of an adenosine A1 receptor-mediated inhibitory tonus: Pre- and postsynaptic components [PDF]

, 1993
Intracellular recordings were performed on hippocampal CA3 neuronsin vitro to investigate the inhibitory tonus generated by endogenously produced adenosine in this brain region.
Alzheimer, Alzheimer, Alzheimer, Alzheimer, Andreasen, Arai, Ault, Ault, B. Sutor, Bauer, Beavo, Beavo, Ben-Ari, Bruns, Bruns, C. Alzheimer, Chamberlin, Daly, Dragunow, Dragunow, Dunwiddie, Dunwiddie, Dunwiddie, Fredholm, G. Ten Bruggencate, Gerber, Greene, Greene, Haas, Hablitz, Hablitz, Jackisch, Johnston, Linden, Linden, Llinás, Lohse, Madison, Malenka, Meghji, Miles, Moraidis, Nicholson, Pockett, Prestwich, Prince, Scholz, Schubert, Schubert, Smellie, Smellie, Smith, Snyder, Snyder, Sutor, Tanaka, Thompson, Thompson, Van Calker, Williams, Zetterström   +60 more
core   +1 more source

The Role of Adenosine Tone and Adenosine Receptors in Huntington's Disease.

Journal of Caffeine and Adenosine Research, 2018
Huntington's disease (HD) is a hereditary neurodegenerative disorder caused by a mutation in the IT15 gene that encodes for the huntingtin protein.
D. Blum, Y. Chern, M. R. Domenici, L. Buée, Chien-Yu Lin, W. Rea, S. Ferré, P. Popoli   +7 more
semanticscholar   +1 more source

Pathological overproduction: the bad side of adenosine

British Journal of Pharmacology, 2017
Adenosine is an endogenous ubiquitous purine nucleoside, which is increased by hypoxia, ischaemia and tissue damage and mediates a number of physiopathological effects by interacting with four GPCRs, identified as A1, A2A, A2B and A3.
P. Borea, S. Gessi, S. Merighi, F. Vincenzi, K. Varani   +4 more
semanticscholar   +1 more source

Frenkel Exciton Model of Ultrafast Excited State Dynamics in AT DNA Double Helices [PDF]

J. Photochem. and Photobiol. A 190, 328-334 (2007), 2006
Recent ultrafast experiments have implicated intrachain base-stacking rather than base-pairing as the crucial factor in determining the fate and transport of photoexcited species in DNA chains. An important issue that has emerged concerns whether or not a Frenkel excitons is sufficient one needs charge-transfer states to fully account for the dynamics.
arxiv