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Existen pruebas estandarizadas para evaluar la calidad de las semillas y para ensayos de biomonitoreo ambiental, las cuales utilizan indicadores que permiten establecer la sensibilidad de diversas especies a condiciones ambientales, aunque los momentos ...
Lorna Ileana Carbó +4 more
doaj +1 more source
Biosensor measurement of purine release from cerebellar cultures and slices [PDF]
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
Wall, Mark J. +2 more
core +2 more sources
Hoogsteen base pairs proximal and distal to echinomycin binding sites on DNA [PDF]
Forms of the DNA double helix containing non-Watson-Crick base-pairing have been discovered recently based on x-ray diffraction analysis of quinoxaline antibiotic-oligonucleotide complexes.
Dervan, Peter B., Mendel, David
core +2 more sources
Electronic Spectroscopy of Isolated DNA Polyanions [PDF]
In solution, UV-vis spectroscopy is often used to investigate structural changes in biomolecules (i.e., nucleic acids), owing to changes in the environment of their chromophores (i.e., the nucleobases).
Daly, Steven +3 more
core +3 more sources
The exercise sex gap and the impact of the estrous cycle on exercise performance in mice
Exercise physiology is different in males and females. Females are poorly studied due to the complexity of the estrous cycle and this bias has created an exercise sex gap.
Aderbal S. Aguiar +4 more
doaj +1 more source
A New Class of Nucleosides. Synthesis, Reactivity and Biological Activity of Keto-Hexose Nucleosides
Direct oxydation of sterically hindered hexosyl purines led to keto-hexosylpurines, important synthetic intermediates. The first unsaturated keto-nucleosides have also been obtained by acetylation of the corresponding keto-hexosyl purines.
K. Antonakis
doaj +1 more source
Purinergic Signalling in Inflammatory Renal Disease
Extracellular purines have a role in renal physiology and adaption to inflammation. However, inflammatory renal disease may be mediated by extracellular purines, resulting in renal injury.
Nishkantha eArulkumaran +6 more
doaj +1 more source
Cardiovascular Pharmacology of Purines [PDF]
1. This review focuses on the extracellular actions of ATP and adenosine, and in particular their role in cardiovascular regulation. 2. ATP serves as a co-transmitter within the sympathetic nervous system, and is also released from endothelium and aggregating thrombocytes.
Rongen, G.A.P.J.M. +4 more
openaire +4 more sources
Ischemic preconditioning attenuates portal venous plasma concentrations of purines following warm liver ischemia in man [PDF]
Background/Aims: Degradation of adenine nucleotides to adenosine has been suggested to play a critical role in ischemic preconditioning (IPC). Thus, we questioned in patients undergoing partial hepatectomy whether (i) IPC will increase plasma purine ...
Chouker, A. +9 more
core +1 more source
P2X7 Receptor Upregulation in Huntington’s Disease Brains
Huntington’s disease (HD) is a fatal degenerative disorder affecting the nervous system. It is characterized by motor, cognitive, and psychiatric dysfunctions, with a late onset and an autosomal dominant pattern of inheritance.
Ivana Ollà +7 more
doaj +1 more source

