Browsing by Author "XX677264"

Now showing items 1-20 of 26

    • Changes in Sympathetic Nerve Activity of the Mammalian Ovary During a Normal Estrous Cycle and in Polycystic ... 
      Lara Peñaloza, Hernán; Dorfman, M.; Venegas Santos, Mauricio; Luza, S. M.; Luna, S. L.; Mayerhofer, A.; Guimaraes, M. A.; Rosa e Silva, A. A. M.; Ramírez, V. D. (WILEY-LISS, INC., 2002)
      Although it has been known for many years that the ovary is innervated by catecholaminergic nerve fibers and much experimental evidence has strengthened the notion that catecholamines are physiologically involved in the ...
    • Detección de las mutaciones factor V Leiden y protrombina G20210A en pacientes con trombosis venosa 
      Venegas Santos, Mauricio; Conte Lanza, Guillermo; Cuneo V., Marianela (2006)
    • Distribución nacional y regional de genotipos del virus hepatitis C en Chile 
      Venegas Santos, Mauricio; Torres, Claudio; Urzúa Manchego, Álvaro; Brahm Barril, Javier (2013)
      Genotyping of hepatitis C virus has an important prognostic value for response to antiviral therapy. The results of hepatits C virus genotyping performed between 1994 and 2012 from 1,766 patients of different regions ...
    • Effects of adrenalectomy on the stress-induced changes in ovarian sympathetic tone in the rat 
      Gálvez, A.; Paredes Vargas, Alfonso; Fiedler Temer, Jenny; Venegas Santos, Mauricio; Lara Peñaloza, Hernán (HUMANA PRESS INC, 1999-04)
      A 3-wk period of stress promotes the development of ovarian cysts in rats apparently mediated by increased sympathetic nerve activity and ovarian steroid secretion. After 11 wk of stress, these parameters are indistinguishable ...
    • Effects of sympathectomy on ovarian follicular development and steroid secretion 
      Garrido Palma, Maritza; Fernandois, Daniela; Venegas Santos, Mauricio; Paredes Vargas, Alfonso (Bioscientifica Ltd., 2018)
      Recently, the influence of adrenergic activity over ovarian function, and thus fertility, has begun to gain importance. Previous studies have shown that adrenergic activity through norepinephrine (NE) participates in the ...
    • Eliminación espontánea de virus hepatitis C en trasplantado hepático: a propósito de dos casos 
      Urzúa Manchego, Álvaro; Poniachik Teller, Jaime; Díaz Jeraldo, Juan; Castillo Koch, Jaime; Saure Maritano, Alexandre; Lembach Jahnsen, Hanns; Ibarra, José; Venegas Santos, Mauricio (Sociedad Médica de Santiago, 2015)
      The spontaneous clearance of hepatitis C virus infection is rare, especially after liver transplantation, condition in which recurrence is almost universal. We report two cases in which clearance of the virus was achieved ...
    • Genomic determinants of hepatitis C virus antiviral therapy outcomes: toward individualized treatment 
      Venegas Santos, Mauricio; Brahm Barril, Javier; Villanueva Arancibia, Rodrigo (2012)
      Hepatitis C virus (HCV) is an important global health problem with an estimated prevalence of more than 170 million infected individuals worldwide. Currently, the standard antiviral therapy, based on pegylated interferon ...
    • Genotype F of hepatitis B: response to interferon 
      Venegas Santos, Mauricio; Poniachik Teller, Jaime; Fuster, Francisco; Hurtado Heim, Carmen; Villanueva, Rodrigo A.; Brahm Barril, Javier (2015)
    • Hepatitis aguda por virus C: reporte de siete casos en centro de referencia en Chile 
      Urzúa Manchego, Álvaro; Araneda, Gonzalo; Venegas Santos, Mauricio; Arancibia, Juan Pablo; Brahm Barril, Javier; Poniachik Teller, Jaime (Sociedad Médica de Santiago, 2020)
      Hepatitis C virus infection is a major global public health problem. Treatment with direct-acting antivirals is intended to eradicate the chronic form of this infection by 2030. Although uncommon, the acute form of ...
    • IL-23R Arg381Gln polymorphism in Chilean patients with inflammatory bowel disease 
      Venegas Santos, Mauricio; Beltrán Muñoz, Caroll; Alvarez, Luis; Castro, Ariel; Torres, Tamara; Leal, Andrea D.; Lahsen, Francisca M.; Hermoso Ramello, Marcela; Quera Pino, Rodrigo (2008-12)
      Crohn’s disease (CD) and ulcerative colitis (UC) are multifactorial diseases with a genetic background. Recent results have shown that a non-synonymous, single nucleotide polymorphism (rs11209026, c.1142G>A, p.Arg381Gln) ...
    • IL28B polymorphisms associated with therapy responsee in Chilean chronic hepatitis C patients 
      Venegas Santos, Mauricio; Villanueva Arancibia, Rodrigo; González Lagos, Katherine; Brahm Barril, Javier (2011)
      AIM: To analyze the association of three IL28B single nucleotide polymorphisms with response to therapy in Chilean patients infected with hepatitis C virus (HCV). METHODS: We studied two groups of patients with chronic ...
    • Interferones lambdas (ifnsλ) en infección con virus hepatitis C 
      Torres B., Claudio; Venegas Santos, Mauricio; Brahm Barril, Javier (2011)
      The current standard therapy for patients chronically infected with hepatitis C virus (HCV) is the administration of pegylated interferon-α (PEG-IFN) plus ribavirin (RBV), eliminating the virus in only about half of ...
    • Long-Term Treatment With Cisapride and Antibiotics in Liver Cirrhosis: Effect on Small Intestinal Motility, ... 
      Madrid Silva, Ana; Hurtado Heim, Carmen; Venegas Santos, Mauricio; Cumsille Garib, José; Defilippi Cafri, Carlos (Elsevier, 2001)
      OBJECTIVES: Altered small-bowel motility, lengthening of the orocecal transit time, and small-intestinal bacterial overgrowth have been described in patients with liver cirrhosis. These changes might be related to the ...
    • Phylogenetic Analysis of Hepatitis B Virus Genotype F Complete Genome Sequences From Chilean Patients With ... 
      Venegas Santos, Mauricio; Alvarado Mora, Mónica V.; Villanueva Arancibia, Rodrigo; Rebello Pinho, Joao R.; Carrilho, Flair J.; Locarnini, Stephen; Yuen, Lilly; Brahm Barril, Javier (WILEY-LISS, INC., 2011)
      Molecular epidemiological data concerning the hepatitis B virus (HBV) in Chile are not known completely. Since the HBV genotype F is the most prevalent in the country, the goal of this study was to obtain full HBV ...
    • Polimorfismo del gen de la tiopurina S-metiltransferasa en donantes de sangre de un hospital universitario 
      Alvarez L., Luis; Venegas Santos, Mauricio; Larrondo Lillo, Milton; Becerra B., Natalia; Castro L., Ariel; Quera Pino, Rodrigo (2009)
      Background: Thiopurine S-methyltransferase (TPMT) is a cytosolic enzyme that catalyzes the S-methylation of 6-mercaptopurine and azathioprine. Lowactivity phenotypes are correlated with polymorphism in the TPMT gene. ...
    • Polimorfismos cercanos al gen IL28B y su relación con la infección con el virus hepatitis B 
      Venegas Santos, Mauricio; Torres B., Claudio; Brahm Barril, Javier (2012)
      Three top single-nucleotide polymorphisms (rs12979860, rs12980275 and rs8099917) near to IL28B gene have been associated to spontaneous or relate to treatment-induced hepatitis C virus clearence. The role of this ...
    • Prevalence of hepatitis B virus genotypes in chronic carriers in Santiago, Chile 
      Venegas Santos, Mauricio; Muñoz Espinoza, Gabriela; Hurtado Heim, Carmen; Alvarez, Luis; Velasco Rayo, Marta; Villanueva Arancibia, Rodrigo; Brahm Barril, Javier (SPRINGER WIEN, 2008-11)
      The eight genotypes (designated A–H) of hepatitis B virus (HBV) display distinctive geographical distribution worldwide, with genotypes A, D and F frequently detected in South America. To determine the prevalence of ...
    • Prevalencia de la infección por Helicobacter pylori según ensayo de la ureasa en pacientes derivados a la ... 
      Toledo Araya, Héctor; Defilippi Cafri, Carlos; Madrid Silva, Ana; Defilippi Guerra, Claudia; Vallejos M., Cristián; Cáceres Lillo, Dante; Venegas Santos, Mauricio (2007)
      Background: Helicobacter pylori is a pathogenic bacterium that infects a significant number of individuals. In Chile about 79% of the population is colonized. Aims: This study evaluate the prevalence of the H. pylori ...
    • Re-evaluación de seroprevalencia de virus hepatitis E 
      Covarrubias, Natalia; Hurtado Hein, Carmen; Díaz, Alex; Mezzano, Gabriel; Brahm Barril, Javier; Venegas Santos, Mauricio (Sociedad Chilena de Infectología, 2015)
      Reported seroprevalence of hepatitis E virus (HEV) in developed countries is between 0.3-53%. Published data relies on the assays used and its technical performance. Sensitivity on new available tests has improved, which ...
    • Replication of a chronic hepatitis B virus genotype F1b construct 
      Hernández, Sergio; Jiménez, Gustavo; Alarcón, Valentina; Prieto, Cristian; Muñoz, Francisca; Riquelme, Constanza; Venegas Santos, Mauricio; Brahm Barril, Javier; Loyola, Alejandra; Villanueva, Rodrigo A. (Springer, 2016)
      Genotype F is one of the less-studied genotypes of human hepatitis B virus, although it is widely distributed in regions of Central and South American. Our previous studies have shown that HBV genotype F is prevalent ...