Results 71 to 80 of about 10,406 (171)
arXiv, 2017 Expressing the energy content of food as the heat energy released by its combustion is potentially misleading. Food is used to produce adenosine triphosphate (ATP). The free energy of conversion of ATP into adenosine diphosphate is used directly for processes such as muscular contraction, without the need for intermediate heat production. The number of
arxiv
3D-localization microscopy and tracking of FoF1-ATP synthases in living bacteria [PDF]
, 2015 FoF1-ATP synthases are membrane-embedded protein machines that catalyze the synthesis of adenosine triphosphate. Using photoactivation-based localization microscopy (PALM) in TIR-illumination as well as structured illumination microscopy (SIM), we explore the spatial distribution and track single FoF1-ATP synthases in living E.
arxiv +1 more source
Selective and Sensitive Fluorescence Aptamer Biosensors of Adenosine Triphosphate
Nanomaterials and Nanotechnology, 2016 A fluorescence resonance energy transfer (FRET)- based aptamer biosensor (aptasensor) for sensitive determination of adenosine triphosphate (ATP) was developed.
Chao Meng +4 more
doaj +1 more source
The role of adenosine triphosphate in migraine
Biomedicine & Pharmacotherapy, 1989 Classical migraine is associated with two distinct phases; an initial vasoconstriction followed by vasodilatation. The "purinergic" hypothesis for migraine was originally put forward in 1981 as a basis for the reactive hyperaemia and pain during the headache phase.
openaire +3 more sources
Intracellular compartmentalization of adenosine triphosphate.
Journal of Biological Chemistry, 1986 The intracellular distribution and diffusivity of adenosine triphosphate (ATP) was studied by cryomicrodissection of individual Rana pipiens oocytes. We measured ATP concentrations in the nucleus, in animal and vegetal hemisphere cytoplasm, and in an intracellular reference phase (iRP, a microinjected gelatin "organelle") which samples diffusive ATP ...
D S Miller, S B Horowitz
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Antidipsogenic effects of central adenosine-5'-triphosphate
Brazilian Journal of Medical and Biological Research, 2009 Besides other physiological functions, adenosine-5'-triphosphate (ATP) is also a neurotransmitter that acts on purinergic receptors. In spite of the presence of purinergic receptors in forebrain areas involved with fluid-electrolyte balance, the effect ...
D.R.G. de Faria +3 more
doaj
Thesis: The Effects of Hypoxia, Metabolic Restriction and Magnetic Fields on Chromosome Instability and Karyotype Contraction in Cancer Cell Lines [PDF]
arXiv, 2014 Background: Biological effects of extra-low-frequency (ELF) magnetic fields (MFs) have lacked a credible mechanism of interaction between MFs and living material. Objectives: To examine the effect of ELF-MFs on cancer cells. Methods: Five cancer cell lines were exposed to ELF-MFs within the range of 0.025-5 microTesla, and the cells were examined for ...
arxiv
Experimentally implemented dynamic optogenetic optimization of ATPase expression using knowledge-based and Gaussian-process-supported models [PDF]
Optogenetic modulation of adenosine triphosphatase (ATPase) expression represents a novel approach to maximize bioprocess efficiency by leveraging enforced adenosine triphosphate (ATP) turnover. In this study, we experimentally implement a model-based open-loop optimization scheme for optogenetic modulation of the expression of ATPase.
arxiv +1 more source
Active transport: A kinetic description based on thermodynamic grounds [PDF]
arXiv, 2004 We show that active transport processes in biological systems can be understood through a local equilibrium description formulated at the mesoscale, the scale to describe stochastic processes. This new approach uses the method established by nonequilibrium thermodynamics to account for the irreversible processes occurring at this scale and provides ...
arxiv
F1000Research, 2017 Nucleoside triphosphate (NTP)s, like ATP (adenosine 5’-triphosphate) and GTP (guanosine 5’-triphosphate), have long been considered sufficiently concentrated and diffusible to fuel all cellular ATPases (adenosine triphosphatases) and GTPases (guanosine ...
Diana Zala +6 more
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