Now showing items 7553-7572 of 11148

    • Uribe Arias, Alejandro; Posada Duque, Rafael; González Billault, Christian; Villegas, Andrés; Lopera, Francisco; Cardona Gómez, Gloria (Blackwell Publishing Ltd, 2016)
      © 2016 International Society for Neurochemistry Cyclin-dependent kinase 5 (CDK5) plays important roles in synaptic function. Its unregulated over-activation has been, however, associated with neurodegeneration in Alzheimer's ...
    • Maass Oñate, Juan; Berndt, F. Andrés; Cánovas, José; Kukuljan Padilla, Manuel (Association for Research in Otolaryngology, 2013)
      The cells in the organ of Corti do not exhibit spontaneous cell regeneration; hair cells that die after damage are not replaced. Supporting cells can be induced to transdifferentiate into hair cells, but that would ...
    • Varela Lekanda, Diego; Penna, Antonello; Simon, Felipe; Eguiguren Ossa, Ana; Leiva Salcedo, Elías; Cerda, Oscar; Sala, Francisco; Stutzin Schottlander, Andrés (2010-03-05)
      Volume-sensitive outwardly rectifying (VSOR) Cl channels are critical for the regulatory volume decrease (RVD) response triggered upon cell swelling. Recent evidence indicates that H2O2 plays an essential role in the ...
    • Gaspar Ramos, Pablo; Ruiz, Sergio; Zamorano, Francisco; Altayó, Marcela; Pérez, Carolina; Bosman, Conrado A.; Aboitiz Domínguez, Francisco Javier (BIOMED CENTRAL LTD, 2011-02-15)
      Background: Working memory (WM) tasks usually elicit a P300 ERP component, whose amplitude decreases with increasing WM load. So far, this effect has not been studied in schizophrenics (SZs), a group that is considered to ...
    • Lardone, M. C.; Castillo, P.; Valdevenito, R.; Ebensperger, M.; Ronco Macchiavello, Ana María; Pommer, R.; Piottante, A.; Castro, A. (Blackwell Publishing Ltd, 2010)
      There is evidence that impaired spermatogenesis is associated with an imbalance in the oestradiol/testosterone ratio and with Leydig cell (LC) dysfunction. In testis, P450-aromatase, encoded by CYP19, is responsible for ...
    • Castro, Jazmín; Torres, Marisa; Sovino, Hugo; Fuentes, Ariel; Boric, María Angélica; Johnson, M. Cecilia (2010)
      Objective: To study the effect of peritoneal fluid from women with (PF-E) and without (PF-C) endometriosis on P450Arom expression in endometrial cells. Design: Experimental study. Setting: University research ...
    • Contreras, Esteban G.; Sierralta, Jimena; Glavic Maurer, Álvaro (Public Library Science, 2018)
      Background Animal growth is influenced by the genetic background and the environmental circumstances. How genes promote growth and coordinate adaptation to nutrient availability is still an open question. p53 is a ...
    • Espejo Torres, Romilio; Feijóo, Carmen Gloria; Romero Ormazábal, Jaime; Vásquez, Mónica (Microbiology Society, 1998)
      Analysis of the 16S rRNA genes retrieved directly from different environments has proven to be a powerful tool that has greatly expanded our knowledge of microbial diversity and phylogeny. It is shown here that sequence ...
    • Weitz Muñoz, Sebastián; Parra Lucares, Alfredo; Ihl, Fernando; Ramos, Cristóbal; Chaigneau Carmona, Ernesto; Llancaqueo Valeri, Marcelo (Sociedad Médica de Santiago, 2020)
      Isolated cardiac involvement of COVID-19 is an infrequent presentation, and myocardial infarction is even less common. We report a 30-year-old man presenting with retrosternal pain of insidious onset whose intensity increases ...
    • Hidalgo Tapia, Jorge; Liberona Leppe, José; Molgó, Jordi; Jaimovich Pérez, Enrique (Nature, 2002)
      1 The action of the main ciguatoxin involved in ciguatera fish poisoning in the Pacific region (PCTX-1b) was studied in myotubes originated from rat skeletal muscle cells kept in primary culture. 2 The effect of P-CTX-1b ...
    • Zarchi, K.; Yazdanyar, N.; Yazdanyar, S.; Wortsman, Ximena; Jemec, G. B. E. (European Academy of Dermatology and Venereology, 2015)
      Background Hidradenitis suppurativa (HS) is an inflammatory skin disease with a chronic intermittent course. The current classification systems used to categorize disease severity provide limited insight into the degree ...
    • Villarino Herreria, Hernán (Sociedad Chilena para el Desarrollo de la Psiquiatría, 2014)
    • Hernández Caldera, Arnoldo; Muñoz Domon, Miguel; Salazar Ponce, Carolina; Leiva Villagra, Noemi (2013)
      The reason for lip and cleft palate is due to a congenital malformation characterized by the interruption in the continuity of tissue. The primary surgery of the palate velum allows us to reconstruct the lost morphology ...
    • Moreno Moreno, Claudia; Rothhammer Engel, Francisco; Aspillaga, Angela (1992)
      Mummies' demographic information of 10 prehispanic cultures that developed in the Arica region of Chile about 7000 years ago is analyzed and related to the present population structure. A paleoepidemiological analysis ...
    • Vargas, Andrés; Torres, Carolina; Kuller Bosch, Anna; Villena, Belén (Elsevier, 2020)
      Abstract Context. Palliative radiotherapy is effective in the management of symptoms resulting from advanced cancer. However, it remains underutilized. In developed countries, many factors have been linked to this phenomenon ...
    • Pineda, Carlos; Reginato, Anthony M.; Flores, Víctor; Aliste, Marta; Alva, Magaly; Aragón-Laínez, Raúl Antonio; González, Araceli Bernal; Bouffard, José Antonio; Caballero-Uribe, Carlo Vinicio; Chávez-López, Mario; Chávez-Pérez, Nilmo Noel; Collado, Paz; Díaz-Coto, J (Lippincott Williams and Wilkins, 2010)
      Objective: To develop guidelines for Musculoskeletal Ultrasound (MSKUS) training for rheumatologists in the Americas. Methods: A total of 25 Rheumatologists from 19 countries of the American Continent participated in a ...
    • Romero, Pablo; Fernández, Verónica; Slabaugh, Mark; Seleme, Nicolás; Reyes, Nury; Gallardo, Patricia; Herrera, Luisa; Peña, Luis; Pezo, Patricio; Moraga, Mauricio (2014)
      Purpose: The clinical impact of mDNA mutations on the development of Leber hereditary optic neuropathy (LHON) may be modulated by mitochondrial haplogroups, which vary across populations. The aim of this research was to ...
    • Ordóñez, Carlos A.; Parra, Michael W.; Millán, Mauricio; Caicedo, Yaset; Padilla, Natalia; Guzmán Rodríguez, Mónica; Minan Arana, Fernando; García, Alberto; González Hadad, Adolfo; Pino, Luis Fernando; Rodríguez Holguín, Fernando; Serna, José Julián; Salcedo, Alexander; Ferrada, Ricardo; Ivatury, Rao (Corporación Editora Medica Valle Univ Valle, 2020)
      Pancreatic trauma is a rare but potentially lethal injury because often it is associated with other abdominal organ or vascular injuries. Usually, it has a late clinical presentation which in turn complicates the management ...
    • Urdangarín, Angélica; Iñíguez Vila, Germán; Benavides, Carlos; Castillo, Cecilia; Castro, Alex; Castillo, Iván; Corredoira, Yamile; Soto, Néstor (2010)
      Neuroendocrine tumors are uncommon, including VIPoma that produces vasoactive intestinal polypeptide. We report a 45-year-old female presenting with a history of diarrhea lasting three months. An abdominal CAT scan showed ...
    • Muñoz C., Sergio; Mancilla Asencio, Carla; Moyano Schlegel, Leonor; Castillo T., Cecilia; Rossi F., Ricardo; Brahm Barril, Javier; Berger Fleiszig, Zoltán (2010)
      Background: Autoimmune pancreatitis is a special form of chronic pancreatitis, more common in men and usually presenting as obstructive jaundice or abdominal pain. It may be associated with other immunological disorders ...