Browsing by Title Facultad de Ciencias
Now showing items 1846-1865 of 8167
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(Pergamon Press, 1974-02-20)The known alkaloids zizyphine-A (1) and -B (2), abyssinine-A (4) and -B (5), and the previously undescribed zizyphine-C (3), -D (6) and -E (7) have been isolated from the stem bark of Zizyphus oenoplia. The structures ...
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(SOC BIOLGIA CHILE, 2010-08-12)One of the mechanisms for generation of tolerance involves immature dendritic cells (DCs) and a subpopulation of regulatory CD4+ CD25+ T lymphocytes (TREG). The purpose of this work was to analyze how Cyclosporine A (CsA), ...
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(Society of Biology of Chile, 2010)One of the mechanisms for generation of tolerance involves immature dendritic cells (DCs) and a subpopulation of regulatory CD4+ CD25+ T lymphocytes (TREG). The purpose of this work was to analyze how Cyclosporine A (CsA), ...
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(ELSEVIER, 2003-11)The mode of action of cyclosporine (CsA) has been ascribed to its capacity to inhibit IL-2 and IFNgamma production by T cells, two cytokines implicated in allograft rejection. Recently, it has been reported that upon ...
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(Asociación Interciencia, 2016)Cypermethrin is a synthetic pyrethroid widely used as an agropesticide. The aim of this study was to determine the effect of cypermethrin on reproductive patterns of the planarian Dugesia gonocephala, a bioindicator ...
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(WILEY-LISS, DIV JOHN WILEY & SONS INC, 2009-04-15)The CSRNP (cystein-serine-rich nuclear protein) family has been conserved from Drosophila to human. Although knockout mice for each of the mammalian proteins have been generated, their function during vertebrate development ...
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(2012)This review covers classical and modern structural modifications of the alkaloid, the more recent (since 2007) syntheses of cytisine and analogues, and the pharmacology of these compounds, with emphasis on their interactions ...
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(1987)The avian thalamic ventral lateral geniculate nucleus (GLv) was studied by light microscopic techniques in order to understand its anatomy, neuronal composition, and the nature of its retinal and tectal afferents. The avian ...
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(Elsevier, 2020)Preferential temperature as a physiological feature is crucial for spiders, since it determines the selection of key habitats for their survival and reproduction. In this work, we study the daily and geographical variation ...
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(Taylor & Francis Ltd., 2021)Parkinson’s disease (PD) is a neurodegenerative disorder that affects adult people whose treatment is palliative. Thus, we decided to test three dammarane triterpenes 1, 1a, 1b, and we determined that 1 and 1a inhibit ...
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(Wiley, 2020)The presence of a dam disturbs river flow, which in turn directly affects the communities and evolutionary potential of riverine species. To detect the ecological effects of a dam on genetic diversity, genetic structure, ...
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(1998)The Hamiltonian form of the Hilbert action in the first-order tetrad formalism is examined We perform a nonlinear field redefinition of the canonical variables isolating the part of the spin connection which is canonically ...
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(American Chemical Society, 2018)Archeological studies in the United States, Mexico, and Peru suggest that mescaline, as a cactus constituent, has been used for more than 6000 years. Although it is a widespread cactus alkaloid, it is present in high ...
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(SOC BIOLGIA CHILE, 2008)Carotenoids are synthesized in prokaryotic and eukaryotic organisms. In plants and algae, these lipophilic molecules possess antioxidant properties acting as reactive oxygen species scavengers and exert functional roles ...
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(Universidad de Chile, 2017)En esta tesis, demostramos que DAxud1 es un componente de la cromatina, y durante el estres termico, la proteina es reclutada en gran cantidad en loci. que codifican genes hsp70, proteinas chaperonas moleculares que ...
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(Frontiers media SA, 2017)Antigen cross-presentation is a crucial step in the assembly of an antitumor immune response leading to activation of naive CD8 T cells. This process has been extensively used in clinical trials, in which dendritic cells ...
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(Springer, 2014)Long-term studies of plant–pollinator interactions are almost nonexistent in the scientific literature. The objective of the present study was to determine changes and trends in the pollinator assemblage of ulmo (Eucryphia ...
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(Universidad de Chile, 1998)
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(Ecological Society of America, 1999)Impacts of habitat fragmentation on forest bird communities have often been studied in landscapes dominated by agriculture. The striking structural differences between forest fragments and the matrix have led most researchers ...