Results 11 to 20 of about 39,378 (240)

Protonated pyrimidine-purine-purine triplex [PDF]

Nucleic Acids Research, 1993
We have studied a protonated pyrimidine-purine-purine (Py-Pu-Pu) triplex, which is formed between the d(C)nd(G)n duplex and the d(AG)m oligonucleotide as the third strand and carries the CG*A+ protonated base-triads. We have observed such an intermolecular complex between a plasmid carrying the d(C)18 d(G)18 insert and the d(AG)5 oligonucleotide ...
V A, Malkov, O N, Voloshin, A G, Veselkov, V M, Rostapshov, I, Jansen, V N, Soyfer, M D, Frank-Kamenetskii   +6 more
openaire   +2 more sources

A New Class of Nucleosides. Synthesis, Reactivity and Biological Activity of Keto-Hexose Nucleosides

CHIMIA, 1975
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

Frontiers in Physiology, 2013
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, Nishkantha eArulkumaran, Clare eTurner, Marije eSixma, Mervyn eSinger, Robert John Unwin, Frederick WK Tam   +6 more
doaj   +1 more source

P2X7 Receptor Upregulation in Huntington’s Disease Brains

Frontiers in Molecular Neuroscience, 2020
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, Ivana Ollà, María Santos-Galindo, María Santos-Galindo, Ainara Elorza, Ainara Elorza, José J. Lucas, José J. Lucas   +7 more
doaj   +1 more source

PHGDH Defines a Metabolic Subtype in Lung Adenocarcinomas with Poor Prognosis

Cell Reports, 2017
Molecular signatures are emerging determinants of choice of therapy for lung adenocarcinomas. An evolving therapeutic approach includes targeting metabolic dependencies in cancers.
Boxi Zhang, Adi Zheng, Per Hydbring, Gorbatchev Ambroise, Amanda Tomie Ouchida, Michel Goiny, Helin Vakifahmetoglu-Norberg, Erik Norberg   +7 more
doaj   +1 more source

Teores de proteína bruta para bovinos alimentados com feno de capim-tifton 85: parâmetros ruminais, eficiência de síntese microbiana e degradabilidade in situ Effects of crude protein levels on microbial efficiency and in situ degradability in steers fed Tifton 85 bermudagrass hay supplemented with different protein sources

Revista Brasileira de Zootecnia, 2007
Avaliou-se o efeito da deficiência de PB na dieta sobre a eficiência de síntese microbiana e a degradabilidade in situ da MS e FDN em novilhos mestiços.
Edilane Aparecida da Silva, Telma Teresinha Berchielli, Ricardo Andrade Reis, Alexandre Vaz Pires, Kátia Junko Sato, José Mauro Valente Paes, André Dias Lopes   +6 more
doaj   +1 more source

Metabolomic and transcriptomic response to imatinib treatment of gastrointestinal stromal tumour in xenograft-bearing mice

Translational Oncology, 2023
Background: Although imatinib is a well-established first-line drug for treating a vast majority of gastrointestinal stromal tumours (GIST), GISTs acquire secondary resistance during therapy.
Szymon Macioszek, Danuta Dudzik, Rafał Bartoszewski, Tomasz Stokowy, Diether Lambrechts, Bram Boeckx, Agnieszka Wozniak, Patrick Schöffski, Michał J. Markuszewski   +8 more
doaj   +1 more source

The changes in purine metabolism in gastric cancer

Gastroenterologìa, 2019
Background. Gastric cancer (GC) is considered an urgent problem of oncology, due to its high incidence and morta­lity, diagnosis at a later stage of the disease progression, anatomical and topographical features of the organ affected by the tumor and the
O.V. Syniachenko, R.F. Aliiev, M.V. Iermolaieva, V.G. Bondar   +3 more
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Allopurinol Disrupts Purine Metabolism to Increase Damage in Experimental Colitis

Cells
Inflammatory bowel disease (IBD) is marked by a state of chronic energy deficiency that limits gut tissue wound healing. This energy shortfall is partially due to microbiota dysbiosis, resulting in the loss of microbiota-derived metabolites, which the ...
Corey S. Worledge, Rachael E. Kostelecky, Liheng Zhou, Geetha Bhagavatula, Sean P. Colgan, J. Scott Lee   +5 more
doaj   +1 more source

Novel Point-of-Care Diagnostic Method for Neonatal Encephalopathy Using Purine Nucleosides

Frontiers in Molecular Neuroscience, 2021
Background: Evidence suggests that earlier diagnosis and initiation of treatment immediately after birth is critical for improved neurodevelopmental outcomes following neonatal encephalopathy (NE). Current diagnostic tests are, however, mainly restricted
Edward Beamer, Edward Beamer, Mary Isabel O’Dea, Mary Isabel O’Dea, Mary Isabel O’Dea, Mary Isabel O’Dea, Aisling A. Garvey, Aisling A. Garvey, Jonathon Smith, Jonathon Smith, Aida Menéndez-Méndez, Lynne Kelly, Lynne Kelly, Andreea Pavel, Andreea Pavel, Sean Quinlan, Mariana Alves, Eva M. Jimenez-Mateos, Faming Tian, Eugene Dempsey, Eugene Dempsey, Nicholas Dale, Deirdre M. Murray, Deirdre M. Murray, Geraldine B. Boylan, Geraldine B. Boylan, Eleanor J. Molloy, Eleanor J. Molloy, Eleanor J. Molloy, Eleanor J. Molloy, Tobias Engel, Tobias Engel   +31 more
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