Repositorio Académico de la Universidad de Chile: Recent submissions

Now showing items 39941-39960 of 98886

    • Diminishing apoptosis by deletion of bax or overexpression of Bcl-2 does not protect against infectious ... 
      Steele, Andrew D.; King, Oliver D.; Jackson, Walker S.; Hetz Flores, Claudio; Borkowski, Andrew W.; Thielen, Peter; Wollmann, Robert; Lindquist, Susan (2007)
      B-cell lymphoma protein 2 (Bcl-2) and Bcl-2-associated X protein (Bax), key antiapoptotic and proapoptotic proteins, respectively, have important roles in acute and chronic models of neurologic disease. Several studies ...
    • Spontaneous retroperitoneal hematoma. Report of one case Hematoma retroperitoneal espontáneo. Caso clínico 
      Álvarez Zepeda, Carlos; Cerda C, César; Jadue T, Andrés; Rojas R, Francisco; Abelleira P, Millarai; Hermansen T, Carlos; Gatica J, Francisco (2007)
      Spontaneous retroperitoneal hematoma is a rare condition. We report a 78 year-old man with progressive pain in his right thigh and hip lasting one week. The pain subsequently was associated with abdominal pain in the right ...
    • Effect of the consumption of a food supplement on plasma zinc concentrations of free-living Chilean elderly ... 
      Ramos H, Rosa Isela; Atalah Samur, Eduardo; Urteaga R, Carmen; Castañeda L, Rutila; Orozco L, Maribel; Avila, Laura; Martínez, Homero (2007)
      Background: Zinc intake is well below recommendation among Chilean free living elderly adults of low socioeconomic level. Aim: To assess the effect of the consumption of a food supplement on plasma zinc concentrations in ...
    • Genetic susceptibility to Andes Hantavirus: Association between severity of disease and HLA alleles in ... 
      Ferrer C., Pablo; Vial C., Pablo A.; Ferrés, Marcela; Godoy M., Paula; Cuiza V., Analia; Marco C., Claudia; Castillo H., Constanza; Umaña C., María Elena; Rothhammer Engel, Francisco; Llop Romero, Elena (2007)
      Andes hantavirus (ANDV) infection in Chile has a variable clinical expression, and infected individuals may present with different grades of disease severity. This study aimed to determine if clinical expression of ANDV ...
    • C reactive protein and procalcitonin levels for the diagnosis of invasive bacterial infections in allogenic ... 
      Schmidt, Nadia; Palma, Julia; King, Alejandra; Santolaya de Pablo, María Elena (2007)
      Background: The main causes of complications of allogenic hematopoietic stem cell transplantation are infections and graft versus host disease. Aim: To assess the predictive value of C reactive protein (CRP) and procalcitonin ...
    • Association of the estrogen receptor α gene polymorphisms with osteoporosis in the Mexican population 
      Gómez, A. B.; Magaña, J. J.; Cisneros, B.; Pérez-Salazar, E.; Faugeron, S.; Véliz, D.; Castro, C.; Rubio, J.; Casas, L.; Valdés-Flores, Margarita (2007)
      The estrogen receptor gene (ERα) has been implicated in the development of osteoporosis. In this study, the association of two ERα gene polymorphic markers (a TA dinucleotide repeat and a single nucleotide polymorphism, ...
    • Association between obesity and insulin resistance with UCP2-UCP3 gene variants in Spanish children and adolescents 
      Ochoa, María C.; Santos, José Luis; Azcona, Cristina; Moreno Aliaga, María J.; Martínez González, Miguel A.; Martínez, J. Alfredo; Marti, Amelia (2007)
      A number of studies have yielded controversial results on the association between polymorphisms in UCP2 and UCP3 genes with obesity and its comorbidities. The discrepancy among studies might be partially explained by the ...
    • Oxidative stress and inflammation in heart failure: Mechanisms of damage and therapeutic alternatives Estrés ... 
      Miranda H, Rodrigo; Castro G, Pablo; Verdejo, Hugo; Chiong Lay, Mario; Díaz Araya, Guillermo; Mellado, Rosemarie; Rojas, Diego; Concepción, Roberto; Lavandero González, Sergio (2007)
      Despite advances in treatment, chronic heart failure still is associated with a poor prognosis and remains a leading cause of cardiovascular death. Cumulating evidence suggests that imbalances in redox state lead to a ...
    • Toll-like receptors are key participants in innate immune responses 
      Arancibia, Sergio A.; Beltrán, Caroll J.; Aguirre, Isabel M.; Silva, Paulina; Peralta, Alexis L.; Malinarich, Frano; Hermoso Ramello, Marcela (Society of Biology of Chile, 2007)
      During an infection, one of the principal challenges for the host is to detect the pathogen and activate a rapid defensive response. The Toll-like family of receptors (TLRs), among other pattern recognition receptors (PRR), ...
    • Prevalence and characteristics of incidental hyperglycemia in children Prevalencia y características de la ... 
      Santiago Muzzo, B.; Engracia Rosales, R.; Isabel Miranda, P.; Lorena Yates, B.; Alex Passeron, P. (2007)
      Incidental hyperglycemia (IH) is a transient elevation of plasma glucose produced by a severe illness or without a cause. Children with IH have an increased risk of type 1 diabetes (T1D), especially those without concurrent ...
    • Circadian clocks during embryonic and fetal development 
      Serón Ferré, María; Valenzuela, Gullermo J.; Torres Farfán, Claudia (2007)
      Circadian rhythmicity is a fundamental characteristic of organisms, which helps ensure that vital functions occur in an appropriate and precise temporal sequence and in accordance with cyclic environmental changes. Living ...
    • Bilateral laparoscopic adrenalectomy 
      Castillo, Octavio A.; Vitagliano, Gonzalo; Cortes, Oscar; Kerkebe, Marcelo; Pinto, Ivan; Arellano, Leonardo (2007)
      Background and Purpose: Laparoscopic adrenalectomy has become the gold standard in the surgical management of adrenal pathology. Bilateral adrenalectomy is indicated in patients with Cushing's disease secondary to macroadenoma ...
    • The CK1 gene family: Expression patterning in zebrafish development 
      Albornoz, Amelina; Yáñez López, José; Foerster, Claudia; Aguirre, Celeste; Pereiro, Luisa; Burzio, Verónica; Moraga, Mauricio; Reyes, Ariel E.; Antonelli, Marcelo (Society of Biology of Chile, 2007)
      Protein kinase CK1 is a ser/thr protein kinase family which has been identified in the cytosol cell fraction, associated with membranes as well as in the nucleus. Several isoforms of this gene family have been described ...
    • Features of natural and gonadotropin-releasing hormone antagonist-induced corpus luteum regression and ... 
      Del Canto, Felipe; Sierralta, Walter; Kohen Skop, Paulina; Ferrada Muñoz, Alex Eduardo; Strauss, Jerome F.; Devoto, Luigi (Endocrine Society, 2007)
      Context: The natural process of luteolysis and luteal regression is induced by withdrawal of gonadotropin support. Objective: The objectives of this study were: 1) to compare the functional changes and apoptotic features ...
    • Fluorescent serum and urinary advanced glycoxidation edn-paroducts in non-diabetic subjects 
      Maza Cave, María Pía de la; Bravo, A.; Leiva, L.; Gattas, Vivien; Petermann, Margarita; Garrido, F.; Bunout Barnett, Daniel; Hirsch Birn, Sandra; Barrera, G.; Fernández, M. S. (2007)
      Introduction: Advanced glycoxidation end-products (AGEs) are involved in age-related conditions and diabetic complications. Diet intake contributes to their circulating concentrations. Aim: To measure serum and urinary ...
    • ER stress signaling and the BCL-2 family of proteins: From adaptation to irreversible cellular damage 
      Hetz Flores, Claudio (2007)
      Programmed cell death is essential for the development and maintenance of cellular homeostasis, and its deregulation results in a variety of pathologic conditions. The BCL-2 family of proteins is a group of evolutionarily ...
    • Electromyographic evaluation of anterior temporal and suprahyoid muscles using habitual methods to determine ... 
      Fresno, María Javiera; Miralles, Rodolfo; Valdivia, José; Fuentes, Aler D.; Valenzuela, Saúl; Ravera, María José; Santander, Hugo (2007)
      The purpose of this study was to compare the electromyographic (EMG) activity of the anterior temporal and suprahyoid muscles using habitual methods to determine the clinical rest position. The sample included 26 healthy ...
    • Treatment of postnatal depression in low-income mothers in primary-care clinics in Santiago, Chile: a ... 
      Rojas Castillo, María Graciela; Fritsch Montero, Rosemarie; Solis, Jaime; Jadresic, Enrique; Castillo, Cristóbal; González, Marco; Guajardo, Viviana; Lewis, Glyn; Peters, Tim J.; Araya, Ricardo (2007)
      Background: The optimum way to improve the recognition and treatment of postnatal depression in developing countries is uncertain. We compared the effectiveness of a multicomponent intervention with usual care to treat ...
    • Parvovirus B19 infection in Chile: Markers of infection and immunity in patients with clinical symptoms 
      Larrañaga, Carmen; León, Oscar; Díaz, Patricia; Miranda, Marta; Norambuena, Ximena; Pérez, Marcela; Gaggero Brillouet, Aldo (2007)
      Parvovirus B19 infection is associated with a wide variety of symptoms and signs, and given that some clinical features, such as anemia, arthropathy and rash may be attributable to other causes, laboratory diagnosis of B19 ...
    • A new DAX-1 mutation in a family with a case of neonatal adrenal insufficiency and a sibling with adrenal ... 
      Mericq, Verónica; Ciaccio, Marta; Marino, Roxana; Lamoglia, Juan Javier; Viterbo, Gisella; Rivarola, Marco A.; Belgorosky, Alicia (Freund Publishing House Ltd, 2007)
      Adrenal hypoplasia congenita (AHC) is a hereditary disorder that leads to adrenal insufficiency and hypogonadotropic hypogonadism (HHG) in childhood. The gene responsible for the X-linked form of AHC, DAM (dosage-sensitive ...