Browsing by Title Artículos de revistas

Now showing items 1691-1710 of 2801

    • Nanoparticles as potential novel therapies for urinary tract infections 
      Sánchez, Sofía V.; Navarro Martínez, Nicolás Matías; Catalán Figueroa, Johanna; Morales Montecinos, Javier Octavio (Frontiers Media, 2021)
      Urinary tract infection (UTI) is one of the most common reasons for antibiotic treatment. Nevertheless, uropathogens are steadily becoming resistant to currently available therapies. In this context, nanotechnology emerges ...
    • Nanoparticles for diagnosis and therapy of atherosclerosis and myocardial infarction: Evolution toward ... 
      Bejarano, Julian; Navarro Márquez, Mario F.; Morales Zavala, Francisco; Morales, Javier O.; García Carvajal, Ivonne; Araya Fuentes, Eyleen; Flores, Yvo; Verdejo, Hugo E.; Castro, Pablo F.; Lavandero González, Sergio; Kogan Bocian, Marcelo (Ivyspring International Publisher, 2018)
      © Ivyspring International Publisher. Cardiovascular diseases are the leading cause of death worldwide. Despite preventive efforts, early detection of atherosclerosis, the common pathophysiological mechanism underlying ...
    • Nanoparticles for the Treatment of Wounds 
      Oyarzún Ampuero, Felipe; Vidal, Alejandra; Concha, Miguel; Morales Montecinos, Javier; Orellana, Sandra; Moreno Villoslada, Ignacio (Bentham, 2015)
      The treatment of skin wounds represents an important research area due to the important physiological and aesthetic role of this tissue. During the last years, nanoparticles have emerged as important platforms to treat ...
    • Nanostructured interfaces containing MWCNT and nitro aromatics: a new tool to determine Nimesulide 
      Moscoso, R.; Álvarez Lueje, Alejandro; Squella Serrano, Juan (Elsevier, 2020)
      A novel type of multiwalled carbon nanotube-modified glassy carbon electrode with an entrapped nimesulide drug was constructed. The new electrode surface was characterized by scanning electrochemical microscopy and scanning ...
    • Naphthoxazole-Based Singlet Oxygen Fluorescent Probes 
      Ruiz González, Rubén; Zanocco, Renzo P.; Gidi, Yasser; Zanocco Loyola, Antonio; Nonell, Santi; Lemp Miranda, Else (The American Society of Photobiology, 2013)
      In this study, we report the synthesis and photochemical behavior of a new family of photoactive compounds to assess its potential as singlet oxygen (1O2) probes. The candidate dyads are composed by a 1O2 trap plus a ...
    • Native and chemically modified porin channels from Salmonella typhi Ty2 in planar lipid bilayers. 
      Labarca, Pedro; Lobos, S.; Calderón, Inés; Mora, Guido C. (Elsevier Science Publisher B. V., 1986)
      Native porins from Salmonella typhi Ty2 outer membrane, and porins alkylated with pyridoxal phosphate (Plp) were studied in planar lipid bilayers. The conductance of bilayers exposed to native or chemically modified porins ...
    • Native and invasive taxa on the Pacific coast of South America: Impacts on aquaculture, traceability and ... 
      Larraín Barth, María Angélica; Zbawicka, Malgorzata; Araneda Tolosa, Cristian; Gardner, Jonathan P. A.; Wenne, Roman (Wiley, 2017)
      Gaining new knowledge of the native distributions of species (phylogeography) is more and more difficult in a world affected by anthropogenic disturbance, in particular by species translocations. ...
    • Natural history of chagasic cardiopathy in Chile. Follow-up of 71 cases after 4 years 
      Apt Baruch, Werner; Arribada,; Cabrera,; Sandoval, (1983)
      As part of study of Chagasic cardiopathy in Chile we report a follow-up study of 100 cardiopathic patients from two endemic areas who had been diagnosed 4 years earlier during an epidemiological and clinical survey. The ...
    • Natural silicate-TiO2 hybrids for photocatalytic oxidation of formaldehyde in gas phase 
      Portela, R.; Jansson, I.; Suárez, S.; Villarroel, M.; Sánchez, B.; Avila, P. (Elsevier B.V., 2017)
      © 2016 Elsevier B.V. Structured hybrid materials based on the combination adsorbent-photocatalyst with optimal mechanical resistance and reduced cost, are prepared by extrusion using four different natural silicates with ...
    • Near critical and supercritical fluid extraction of Cu(II) from aqueous solutions using a hollow fiber contactor 
      Valdés, Hugo; Sepúlveda, Rossana; Romero, Julio; Valenzuela, Fernando; Sánchez, José (Elsevier, 2013)
      The aim of this work is the experimental and theoretical characterization of the mass transfer in a membrane-based dense gas extraction of metal ions from aqueous solutions using a hollow fiber contactor. Extractions of ...
    • Neonatal Exposure to Estradiol Valerate Programs Ovarian Sympathetic Innervation and Follicular Development ... 
      Sotomayor Zárate, Ramón; Dorfman, Mauricio; Paredes Vargas, Alfonso; Lara Peñaloza, Hernán (SOC STUDY REPRODUCTION, 2008-04)
      A single injection of estradiol valerate (EV) to 14-day-old rats (when the ovarian follicle population has been already established) disrupts cyclicity, increases the activity of key enzymes of androgen biosynthesis, ...
    • Neonatal exposure to estradiol valerate reprograms the rat ovary androgen receptor and anti-Müllerian hormone ... 
      Martínez Pinto, Jonathan Eloy; Piquer Franco, Beatriz Gabriela; Tiszavari, Michelle; Lara, Hugo (Elsevier INC, 2018)
      To understand the impact of exposure to steroids in the early step of ovary development(a stage occurring in uterus in humans), we studied neonatal exposure to estradiol valerate (EV) in rats regarding polycystic ovary ...
    • Nerve growth factor induces the expression of functional FSH receptors in newly formed follicles of the rat ovary 
      Romero Osses, Carmen; Paredes Vargas, Alfonso; Dissen, G. A.; Ojeda, Sergio R. (ENDOCRINE SOC, 2002-04)
      The neurotrophin nerve growth factor (NGF) and its two membrane-anchored receptors are expressed in the developing ovary before the organization of the first primordial follicles. In the absence of NGF, the growth of ...
    • Network-based approaches reveal potential therapeutic targets for host-directed antileishmanial therapy ... 
      Martínez Hernández, Eduardo; Hammoud, Zaynab; De Sousa, Alessandra Mara; Kramer, Frank; Do Monte-Neto, Rubens L.; Maracajá Coutinho, Vinicius; Martin, Alberto J. M. (Amer Soc Microbiology, 2021)
      Leishmania parasites are the causal agent of leishmaniasis, an endemic disease in more than 90 countries worldwide. Over the years, traditional approaches focused on the parasite when developing treatments against ...
    • Neural crests are actively precluded from the anterior neural fold by a novel inhibitory mechanism dependent ... 
      Carmona-Fontaine, Carlos; Acuña, Gustavo; Ellwanger, Kristina; Niehrs, Christof; Mayor, Roberto (Academic Press Inc., 2007)
      It is known the interactions between the neural plate and epidermis generate neural crest (NC), but it is unknown why the NC develops only at the lateral border of the neural plate and not in the anterior fold. Using ...
    • Neuroendocrine Regulation and Homeostasis 
      Mani, Shaila K.; Anselmo-Franci, Janete; Lara Peñaloza, Hernán; Suchecki, Deborah; Poletini, Maristela O.; Handa, Robert J.; John Wu, Tao-yiao (British Society for Neuroendocrinology, 2014)
    • Neuronal Thy-1 induces astrocyte adhesion by engaging syndecan-4 in a cooperative interaction with alpha v ... 
      Ávalos, Ana María; Valdivia, A. D.; Muñoz, Nicolás; Herrera Molina, Rodrigo; Tapia Pineda, Julio; Lavandero González, Sergio; Chiong Lay, Mario; Burridge, Keith; Schneider, P.; Quest, Andrew F. G.; Leyton Campos, Lisette (COMPANY OF BIOLOGISTS LTD, 2009-10)
      Clustering of alpha v beta 3 integrin after interaction with the RGD-like integrin-binding sequence present in neuronal Thy-1 triggers formation of focal adhesions and stress fibers in astrocytes via RhoA activation. A ...
    • Neurotrophic control of ovarian development 
      Dissen, G. A.; Romero Osses, Carmen; Paredes Vargas, Alfonso; Ojeda, Sergio R. (WILEY-LISS, DIV JOHN WILEY & SONS INC, 2002-12-15)
      Substantial evidence now exists indicating that the neurotrophins, a family of growth factors required for the survival, development, and differentiation of various neuronal populations of the nervous system, are also ...
    • New aldehydes by catalytic diene cycloisomerisations 
      Grau, Fanny; Bayón, J.; Aguirre, Pedro; Parella, Teodor; Duñach, Elisabet (2008)
      The Rh-catalysed hydroformylation of isopropylidenecyclohexane derivatives obtained by intramolecular diene cyclisations affords the corresponding aldehydes in good yields and in a completely chemo- and regioselective ...
    • A new alkaloid of Strychnos. The ocurrence of 11-methoxy-diaboline in Strychnos romeu-belenii Krukoff and Barneby 
      Marini-Bettòlo, G. B.; Delle Monache, E. M.; Erazo, Silvia; Galeffi, Corrado (Societá Chimica Italiana, 1971)
      From the stem bark of Strychnos romeu-belenii Krukoff and Barneby, a Longaniacea of South America, a new indolinic alkaloid has been isolated to which the structure of 11-,11-methoxy-diaboline(I) has been assigned on the ...