Now showing items 1171-1190 of 2727

    • Baggio, Ricardo; Calvo, Rafael; Garland, María Teresa; Peña, Octavio; Perec, Mireille; Rizzi, Alberto (AMER CHEMICAL SOC, 2005-11-28)
      A new lanthanide citrate motif of general formula [Ln(Hcit)(H2O)(2)center dot H2O](n), where Ln = Gd (1) and Nd (2) and HCit(3-)= C(OH)(COO-)(CH2COO-)(2), has been synthesized hydrothermally from Ln(2)O(3) and citric acid ...
    • López Alarcón, Camilo; Squella Serrano, Juan; Núñez Vergara, Luis; Báez Guerrero, Hernán; Camargo Grandón, Rodrigo (JOHN WILEY, 2002)
      A gas chromatography/mass spectrometry (GC/MS) method for the qualitative and quantitative determination of the calcium-channel antagonists C-4-substituted 1,4-dihydropyridines, and their corresponding N-ethyl derivatives, ...
    • Guerrero, Ariel R.; Oyarzún Ampuero, Felipe; Hassan, Natalia; Corvalán, Alejandro; Quest, Andrew F. G.; Kogan Bocian, Marcelo (Bentham Science, 2016)
      In recent years, advances in nanotechnology have raised the specter of developing effective agents for the treatment of high-impact diseases, like gastric cancer, which remains one of the major causes of cancer deaths ...
    • Valenzuela Pedevila, María Antonieta; Cartier Rovirosa, Luis; Collados, L. E.; Kettlun, Ana María; Araya, F.; Concha, C.; Flores, L.; Wolf, M. E.; Mosnaim, A. D. (P J D PUBLICATIONS LTD, 1999)
      We have studied the enzymatic gelatinolytic activity of matrix metalloproteinases (MMPs) present in cerebrospinal fluid (CSF) of samples obtained from 67 individuals, twenty-one nonneurological patients (considered controls) ...
    • Tapia, Juan E.; Pérez Flores, Claudio (Institute of Electrical and Electronics Engineers Inc., 2019)
      In the past few years, accuracy in determining gender from iris images has increased significantly, approaching levels that make novel applications of this biometric technology feasible. In this paper, we report the gender ...
    • Pérez, Paola; Anaya, Juan Manuel; Aguilera, Sergio; Urzúa Tobar, Ulises; Munroe, David; Molina, Claudio; Hermoso Ramello, Marcela; Cherry, James Michael; Alliende, Cecilia; Olea, Nancy; Ruiz-Narváez, Edward; González Burgos, María Julieta (2009)
      Primary Sjögren's syndrome (SS) is a chronic inflammatory autoimmune disease affecting mainly the exocrine glands. Its physio-pathology is poorly understood and most of the knowledge has been related to the inflammatory ...
    • Speisky Cosoy, Hernán; Gómez, Maritza; Burgos Bravo, Francesca; López Alarcón, Camilo; Jullian Matthaei, Carolina; Olea Azar, Claudio; Aliaga, Margarita E. (PERGAMON-ELSEVIER SCIENCE LTD, 2009-03-01)
      The interaction between Cu2+ ions and GSH molecules leads to the swift formation of the physiologically occurring Cu(I)-[GSH](2) complex. Recently, we reported that this complex is able to reduce molecular oxygen into ...
    • Storpirtis, Sílvia; Gai, Maria Nella; Cristofoletti, Rodrigo (IOS Press, 2014)
      © 2014 - Network of Centres for Study of Pharmaceutical Law. All rights reserved.In the XIX and XX centuries, Latin American countries have experienced several changes on politics and economics, facing problems related to ...
    • Larraín Barth, María Angélica; Díaz Pérez, Nelson; Lamas, Carmen; Vargas, Carlos; Araneda Tolosa, Cristian (2012)
      Mussels are one of the most cultivated and commercialized bivalves worldwide and in southern Chile its culture represent an important economic activity. The species identification within the Mytilus genera, by morphological ...
    • Hazen, Tracy H.; Nagaraj, Sushma; Sen, Sunil; Permala-Booth, Jasnehta; Canto, Felipe Del; Vidal, Roberto; Barry, Eileen M.; Bitoun, Jacob P.; Chen, Wilbur H.; Tennant, Sharon M.; Rasko, David A. (American Society for Microbiology, 2019)
      Copyright © 2019 Hazen et al. Enterotoxigenic Escherichia coli (ETEC) is a significant cause of childhood diarrhea and is a leading cause of traveler's diarrhea. ETEC strains encoding the heat-stable enterotoxin (ST) are ...
    • DebRoy, Sruti; Aliaga Tobar, Víctor; Gálvez, Gabriel; Arora, Srishtee; Liang, Xiaowen; Horstmann, Nicola; Maracajá Coutinho, Vinicius; Latorre Mora, Mauricio; Hook, Magnus; Flores, Anthony; Shelburne, Samuel A. (Wiley, 2020)
      Catabolite control protein A (CcpA) is a master regulator of carbon source utilization and contributes to the virulence of numerous medically important Gram-positive bacteria. Most functional assessments of CcpA, including ...
    • Amaral, Paulo P.; Leonardi, Tommaso; Han, Namshik; Vire, Emmanuelle; Gascoigne, Dennis K.; Arias Carrasco, Raúl; Buscher, Magdalena; Pandolfini, Luca; Zhang, Anda; Pluchino, Stefano; Maracaja Coutinho, Vinicius; Nakaya, Helder I.; Hemberg, Martin; Shiekhattar, Ramin; Enright, Anton J.; Kouzarides, Tony (BIOMED Central Ltd., 2018)
      Background: The mammalian genome is transcribed into large numbers of long noncoding RNAs (lncRNAs), but the definition of functional lncRNA groups has proven difficult, partly due to their low sequence conservation and ...
    • López -Escobar, Leopoldo; Frey, Frederick A.; Oyarzún, Jorge (Springer-Verlag, 1979)
      Seventeen granitoid samples from batholiths in central Chile (33 °-34 ° S) have been analyzed for trace element content. The samples range in age from Paleozoic to Tertiary, and in rock type from quartz diorite to granite. ...
    • Rivera, L. A.Patricio; Hernandez, G. Rosario (1996)
      In this work, we report on the isolation and identification of the sesquiterpene 6-Oxo-germacra-1(10)E,4(15)-diene (1). This compound was isolated for the first time from a Chilean Baccharis, B. Sphacrocephala.
    • Arias, Paulina; Ferreyra, Nancy F.; Rivas, Gustavo A.; Bollo Dragnic, Soledad (Elsevier, 2009)
      In this work we report the optimization of a chitosan (CHI) and carbon nanotubes (CNT) modified electrode, CNT-CHI, to study the dsDNA interaction with methylene blue (MB), a well-known DNA intercalator. The analytical ...
    • Jalit, Yamile; Rodríguez, Marcela C.; Rubianes, María D.; Bollo Dragnic, Soledad; Rivas, Gustavo A. (WILEY-V C H VERLAG GMBH, 2008-08)
      We report the analytical performance of glassy carbon electrodes (GCE) modified with a dispersion of multiwall carbon nanotubes (MWCNT) in polylysine (Plys) (GCE/MWCNT-Plys). The resulting electrodes show an excellent ...
    • Troncoso Cotal, Rodrigo; Moraga, Francisco; Chiong Lay, Mario; Roldán S., Juan; Bravo Méndez, Roberto; Valenzuela, Rodrigo; Díaz Araya, Guillermo; Campo Sfeir, Andrea Estefanía del; Sanhueza Muñoz, Carlos Joaquín; Rodríguez Villarroel, Andrea Elizabeth; Vukasovic Ramírez, José Luis; Mellado, Rose Marie; Greig, Douglas; Castro, Pablo; Lavandero González, Sergio (WILEY-BLACKWELL PUBLISHING, 2009-05)
      We investigated the clinical response of chronic heart failure patients with beta(2)- adrenergic receptor Gln(27)-> Glu polymorphism treated for 6 months with carvedilol, a alpha/beta-antagonist with antioxidant properties. ...
    • Alaniz, Alberto J.; Carvajal, Mario A.; Bacigalupo, Antonella; Cattan Ayala, Pedro (Cambridge University Press, 2019)
      Zika virus (ZIKV) is an arbovirus transmitted mainly by Aedes aegypti mosquitoes. Recent scientific evidence on Culex quinquefasciatus has suggested its potential as a vector for ZIKV, which may change the current risk ...
    • Cornejo, Pablo; Meier, Sebastián; Borie B., Gilda; Rillig, Matthias C.; Borie, Fernando (ELSEVIER, 2008-11-15)
      The amount of glomalin-related soil protein (GRSP), a glycoprotein produced by arbuscular mycorrhizal fungi (AMF), its contribution to the sequestering of Cu and Zn in the soil, and the microsite variation of other soil ...
    • Morales, Pablo E.; Torres, Gloria; Sotomayor Flores, Cristian Alejandro; Peña Oyarzún, Daniel; Rivera Mejías, Pablo; Paredes, Felipe; Chiong Lay, Mario (Academic Press Inc., 2014)
      Incretin GLP-1 has important metabolic effects on several tissues, mainly through the regulation of glucose uptake and usage. One mechanism for increasing cell metabolism is modulating endoplasmic reticulum (ER)-mitochondria ...