Browsing by Title Artículos de revistas

Now showing items 1783-1802 of 2801

    • Novel Nanostructured Polymeric Carriers to Enable Drug Delivery for Cardiovascular Diseases 
      Morales Montecinos, Javier; Sepúlveda Rivas, Sabrina; Oyarzún Ampuero, Felipe; Lavandero González, Sergio; Kogan Bocian, Marcelo (Bentham, 2015)
      Applications of polymeric nanotechnologies for enabling therapies for cardiovascular diseases have shown recent success. Both intravenous and oral administration have been investigated and achieved different degrees of ...
    • Novel ruthenium(II) cyclopentadienyl thiosemicarbazone compounds with antiproliferative activity on pathogenic ... 
      Fernández, Mariana; Rodríguez Arce, Esteban; Sarniguet, Cynthia; Morais, Tânia S.; Tomaz, Ana Isabel; Olea Azar, Claudio; Figueroa, Roberto; Maya Arango, Juan; Medeiros, Andrea; Comini, Marcelo; Garcia, M. Helena; Otero, Lucía; Gambino, Dinorah (Elsevier, 2015)
      Searching for new prospective antitrypanosomal agents, three novel Ru(II)-cyclopentadienyl compounds, [Ru(eta(5)-C5H5)(PPh3)L], with HL = bioactive 5-nitrofuryl containing thiosemicarbazones were synthesized and characterized ...
    • Novel solid-state route to nanostructured tin, zinc and cerium oxides as potential materials for sensors 
      Diaz, C.; Platoni, S.; Molina, A.; Valenzuela, M. L.; Geaney, H.; O'Dwyer, C. (American Scientific Publishers, 2014)
      © 2014 American Scientific Publishers.Solid-state sensor nanostructured materials (SnO2, ZnO and CeO2) have been prepared by pyrolysis of macromolecular complexes: PSP-co-4-PVP · (SnCl2)n, PSP-co-4-PVP · (ZnCl2)nand ...
    • Novel template plasmids pCyaA’-Kan and pCyaA’-Cam for generation of unmarked chromosomal cyaA’ translational ... 
      Fernández Oyarzún, Paulina Alejandra; Zabner Espinoza, Marcela Estefanía; Ortega Berríos, Jaime Ignacio; Morgado Ruiz, Constanza Patricia; Amaya Inzunza, Fernando Andrés; Vera Sánchez, Gabriel Alberto; Rubilar Leyton, Carolina Andrea; Salas Valenzuela, Beatriz Elizabeth; Cuevas, Víctor; Valenzuela Montenegro, Camila; Baisón Olmo, Fernando; Álvarez Armijo, Sergio Aníbal; Santiviago Cid, Carlos Alberto (MDPI, 2021)
      The type III secretion systems (T3SS) encoded in pathogenicity islands SPI-1 and SPI-2 are key virulence factors of Salmonella. These systems translocate proteins known as effectors into eukaryotic cells during infection. ...
    • NTRK1 and NTRK2 receptors facilitate follicle assembly and early follicular development in the mouse ovary 
      Kerr, Bredford; García Rudaz, Cecilia; Dorfman, Mauricio; Paredes, Alfonso; Ojeda, Sergio R. (2009)
      Recent studies have demonstrated that neurotrophins (NTs) and their NTRK tyrosine kinase receptors, thought to be exclusively required for the development of the nervous system, are also involved in controlling ovarian ...
    • Nuevas perspectivas en la genética de la Diabetes Mellitus tipo 2 y sus complicaciones crónicas 
      Seelenfreund Hirsch, Daniela; Lobos, S.; Durruty Alfonso, Pilar (Sociedad Chilena de Endocrinología y Diabetes, 2008)
      This review describes the advances in the knowledge about the genetic aspects of common chronic complications of diabetes with prognostic significance, such as diabetic nephropathy and cardiovascular diseases. It is well ...
    • Nutrition facts and functional potential of quinoa (Chenopodium quinoa willd.), an ancient Andean grain: A review 
      Vega-Gálvez, Antonio; Miranda, Margarita; Vergara, Judith; Uribe, Elsa; Puente, Luis; Martínez, Enrique (2010)
      Quinoa, Chenopodium quinoa Willd., is an Amaranthacean, stress-tolerant plant cultivated along the Andes for the last 7000 years, challenging highly different environmental conditions ranging from Bolivia, up to 4.500 m ...
    • Nutritional status and food consumption of older adults beneficiaries of state supplementary food programs ... 
      Benavides, S.; Reano, G.; Zúñiga, R. N.; Castillo, O.; Vásquez, F.; Pérez, F.; Mariotti Celis, M. S. (Karger, 2020)
    • Nutritive Value of an Extrusion‐Texturized Peanut Protein 
      ALID, G.; YANEZ, E.; AGUILERA, J. M.; MONCKEBERG, F.; CHICHESTER, C. O. (1981)
      Defatted peanut flour was texturized in a Wenger X‐25 extruder at 25.1% moisture content and 140°C product temperature. Texturization did not have any significant effect on the amino acid pattern nor on the PER of defatted ...
    • O-antigen chain-length distribution in Salmonella enterica serovar Enteritidis is regulated by oxygen availability 
      Silva Valenzuela, Cecilia; Velásquez, Felipe; Peñailillo, Johany; Garcías Papayani, H éctor; Fernández, Paulina; Tobar, Pía; Contreras, Inés; Santiviago Cid, Carlos; Álvarez Armijo, Sergio (Elsevier, 2016)
      Lipopolysaccharide (LPS) consists of three covalently linked domains: the lipid A, the core region and the O antigen (OAg), consisting of repeats of an oligosaccharide. Salmonella enterica serovar Enteritidis (S. Enteritidis) ...
    • O-antigen expression in Salmonella enterica serovar Typhi is regulated by nitrogen availability through ... 
      Bittner, Mauricio; Saldías, Soledad; Estévez, C.; Zaldívar San Román, María Mercedes; Marolda, Cristina; Valvano, Miguel A.; Contreras, Inés (SOC GENERAL MICROBIOLOGY, 2002-12)
      The authors previously reported increased expression of the Salmonella enterica serovar Typhi (S. typhi) rfaH gene when the bacterial cells reach stationary phase. In this study, using a lacZ fusion to the rfaH promoter ...
    • O-antigen modal chain length in Shigella flexneri 2a is growth-regulated through RfaH-mediated transcriptional ... 
      Carter Jaña, Javier Antonio; Blondel, Carlos; Zaldívar San Román, María Mercedes; Álvarez Armijo, Sergio Aníbal; Marolda, Cristina L.; Valvano, Miguel A.; Contreras, Inés (SOC GENERAL MICROBIOLOGY, 2007-10)
      Shigella flexneri 2a 2457T produces lipopolysaccharide (LIPS) with two O-antigen (OAg) chain lengths: a short (S-OAg) controlled by WzzB and a very long (VL-OAg) determined by Wzz(pHS-2). This study demonstrates that the ...
    • Observation of stable 17 e iron(III) cyclopentadienyl radical complexes 
      Diaz, Eloisa (Sociedad Chilena de Quimica, 1999)
      The EPR spectra of a series of mononuclear complexes [CpFe(dppe)SR]PF6 R = C6H5 (1), C3H7 (2), p-C6H4Br (3) and the binuclear [CpFe(dppe)-S-CH2CH2-S-CpFe(dppe)](PF6) 2 (4) were measured. All the paramagnetic complexes ...
    • Occupancy Distributions Arising in Sampling from Gibbs-Poisson Abundance Models 
      Huillet, Thierry; Martínez Aguilera, Servet (Springer, 2013)
      Estimating the number n of unseen species from a k-sample displaying only p ≤ k distinct sampled species has received attention for long. It requires a model of species abundance together with a sampling model. We start ...
    • Occurrence of cadaverine in hairy roots of Brugmansia candida 
      Carrizo, Carla N.; Pitta Alvarez, Sandra I.; Kogan Bocian, Marcelo; Giulietti, Ana M.; Tomaro, María L. (PERGAMON-ELSEVIER SCIENCE LTD, 2001-07)
      The polyamine, cadaverine, was detected in transformed root cultures of Brugmansia candida (syn. Datuira candida), a Solanaceae which produces the tropane alkaloids scopolamine and hyoscyamine. To the best of our knowledge, ...
    • Octadecyl silica: A solid phase for protein purification by immunoadsorption 
      Chiong Lay, Mario; Lavandero González, Sergio; Ramos, Rodrigo; Aguillón Gutiérrez, Juan Carlos; Ferreira, Arturo (1991)
      Immunoaffinity chromatography involves binding of an antigen or antibody to a solid matrix, usually agarose, frequently using the cyanogen bromide method. These methods are laborious, rather expensive, and their use has ...
    • Oil distribution in potato slices during frying 
      Pedreschi, Franco; Cocio, Claudia; Moyano, Pedro; Troncoso, Elizabeth (ELSEVIER SCI LTD, 2008-07)
      The objective of this research was to study the kinetics of oil absorption and distribution in the structure of potato slices during frying, considering the effects of three oil temperatures and a blanching pre-treatment. ...
    • Oleanolic acid content in Baccharis linearis and its effects on Heliothis zea larvae 
      Argandoña, Victor H.; Faini, Francesca (1993)
      The concentration of the triterpene oleanolic acid in leaves of Baccharis linearis varies at different stages of plant growth from 1.9 to 3.0 g kg-1 fr. wt. Larvae of Heliothis zea, starved with 1.4 mg of oleanolic acid ...
    • Oligo and polyuronic acids interactions with hypervalent chromium 
      González, J. C.; García, S. I.; Bellú, Sebastián; Atria Salas, Ana María; Salas Pelegrin, Juan Manuel; Rockenbauer, A.; Korecz, L.; Signorella, Sandra; Sala, Luis F. (PERGAMON-ELSEVIER SCIENCE LTD, 2009-09-02)
      Selective oxidation of galacturonic residues of oligo and polyuronic acids by Cr-VI affords CO2/HCO2H, oxidized uronic acid, and Cr-III as final redox products. Kinetic studies show that the redox reaction proceeds through ...
    • Oligoarginine peptide conjugated to BSA improves cell penetration of gold nanorods and nanoprisms for ... 
      Bolaños, Karen; Sánchez Navarro, Macarena; Tapia Arellano, Andreas; Giralt, Ernest; Kogan, Marcelo Javier; Araya, Eyleen (MDPI, 2021)
      Gold nanoparticles (AuNPs) have been shown to be outstanding tools for drug delivery and biomedical applications, mainly owing to their colloidal stability, surface chemistry, and photothermal properties. The biocompatibility ...