Results 21 to 30 of about 99,040 (285)

Último recuento: una estrategia efectiva para la evaluación de indicadores de germinación en especies forrajeras en situaciones de estrés

open access: yesCiencia y Tecnología Agropecuaria, 2023
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

Hoogsteen base pairs proximal and distal to echinomycin binding sites on DNA [PDF]

open access: yes, 1987
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

The exercise sex gap and the impact of the estrous cycle on exercise performance in mice

open access: yesScientific Reports, 2018
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

open access: yesCHIMIA, 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

open access: yesFrontiers 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   +6 more
doaj   +1 more source

Nucleotides: Structure and Properties [PDF]

open access: yes, 2005
Nucleotides consist of a nitrogen-containing base, a five-carbon sugar, and one or more phosphate groups. Cells contain many types of nucleotides, which play a central role in a wide variety of cellular processes, including metabolic regulation and the ...
Bowater, RP
core   +1 more source

Gout [PDF]

open access: yes, 2008
INTRODUCTION: Gout affects about 5% of men and 1% of women, with up to 80% of people experiencing a recurrent attack within 3 years. METHODS AND OUTCOMES:We conducted a systematic review and aimed to answer the following clinical questions: What are the
Underwood, Martin
core   +3 more sources

P2X7 Receptor Upregulation in Huntington’s Disease Brains

open access: yesFrontiers 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   +7 more
doaj   +1 more source

Elevated Level of DNA Damage and Impaired Repair of Oxidative DNA Damage in Patients with Recurrent Depressive Disorder [PDF]

open access: yes, 2015
Background: Depressive disorder (DD), including recurrent DD (rDD), is a severe psychological disease, which affects a large percentage of the world population.
Bielecka-Kowalska, Anna   +9 more
core   +1 more source

Metabolomics to unveil and understand phenotypic diversity between pathogen populations [PDF]

open access: yes, 2010
Visceral leishmaniasis is caused by a parasite called Leishmania donovani, which every year infects about half a million people and claims several thousand lives. Existing treatments are now becoming less effective due to the emergence of drug resistance.
A Kamleh   +63 more
core   +6 more sources

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