Browsing by Title Artículos de revistas

Now showing items 1397-1416 of 11550

    • Botulinum neurotoxin: Evolution from poison, to research tool - Onto medicinal therapeutic and future ... 
      Kostrzewa, Richard M.; Segura Aguilar, Juan (2007)
      Botulinum neurotoxin (BoNT), for more than a hundred years, has been a recognized poisonous principle in spoiled food. As its chemical structure became unraveled, and as more knowledge was gained over its mechanism of ...
    • Bovine (Bos taurus) Humoral Immune Response Against Echinococcus granulosus and Hydatid Cyst Infertility 
      Paredes, Rodolfo; Godoy, Pablo; Rodríguez, Betsabé; García, María Pía; Cabezón, Carolina; Cabrera Vallejos, Gonzalo; Jiménez, Verónica; Hellman, Ulf; Sáenz Iturriaga, Leonardo Enrique; Ferreira Vigouroux, Luis Arturo; Galanti Garrone, Norbel (WILEY-BLACKWELL PUBLISHING, 2011-01)
      Echinococcus granulosus, the agent of hydatid disease, presents an indirect life cycle, with canines (mainly dogs) as definitive hosts, and herbivores and human as intermediary ones. In intermediary hosts fertile and ...
    • Bovine derived in vitro cultures generate heterogeneous populations of antigen presenting cells 
      Guzmán, Efraín; Pujol, Myriam; Ribeca, Paolo; Montoya, María (Frontiers Media, 2019)
      Antigen presenting cells (APC) of the mononuclear phagocytic system include dendritic cells (DCs) and macrophages (Macs) which are essential mediators of innate and adaptive immune responses. Many of the biological functions ...
    • Brain abscess. About a clinical series of 30 patients Absceso cerebral. A propósito de una serie de 30 casos 
      Fica Cubillos, Alberto; Bustos G., Patricio; Miranda C., Gonzalo (2006)
      A retrospective study was designed to ascertain the main clinical features of 30 patients admitted for brain abscess between 1989 and 2005. A contiguous source of infection was identified in 40% of cases, direct inoculation ...
    • Brain and liver lipid peroxidation levels following acute and short-term lindane administration in the rat 
      Arisi, Ana Carolina M.; Kiyoko, Simizu; Marisa, Kogake; Barny, Afonso C.D.; Silva, Marcia A.S.; Barros, Silvia B.M.; Boveris, Alberto; Videla Cabrera, Luis; Junqueira, Virginia (1994)
      Oxidative stress-related parameters in rat brain and liver were evaluated following acute (60 mg/kg i.p., 2 and 24 h after dosing) or short-term (1000 ppm in the diet for 90 days) lindane administration. Both treatments ...
    • Brain death: The need for suffi cient and necessary cause. Apropos of a complete deseferentation case from ... 
      David Gladys Godoy, R.; Sáez, M.; Daniel Valenzuela, T.; Andrés Aragón, G. (Sociedad de Neurologia Psiquiatria y Neurocirugia, 2011)
      Brain death is a valid cause of death certifi cation in a patient, especially in terms of organ donation. There are few situations in which the legislator has proposed further examination for certifi cation. We report the ...
    • Brain development parameters and intelligence in Chilean high school graduates 
      Ivanovic, Daniza M.; Leiva, Boris P.; Castro, Carmen G.; Olivares, Manuel G.; Jansana, Joan Manuel M.; Castro, Verónica G.; Almagià, Atillo Aldo F.; Toro, Triana D.; Urrutia, María Soledad C.; Miller, Patricio T.; Bosch, Enrique O.; Larraín, Cristián G.; Pérez, Herná (2004)
      The hypothesis that independently of sex, brain volume (BV) and head circumference (HC) are positively and significantly associated with intellectual quotient (IQ) was examined in a sample of 96 high school graduates of ...
    • Brain organoids: a next step for humanized Alzheimer’s disease models? 
      Gerakis, Yannis; Hetz Flores, Claudio (Nature Publishing Group, 2019)
    • Brain polarization: Behavioral and therapeutic effects 
      Lolas Stepke, Fernando (1977)
      Polarization is the passage of small constant direct currents through the brain. During the last 12 yr some authors have investigated its therapeutic effectiveness in psychiatric patients with different and sometimes ...
    • Brain transcriptome sequencing of a natural model of alzheimer's disease 
      Altimiras, Francisco; Uszczynska-Ratajczak, Barbara; Camara, Francisco; Vlasova, Anna; Palumbo, Emilio; Newhouse, Stephen; Deacon, Robert M.J.; Farias, Leandro A.E.; Hurley, Michael J.; Loyola, David E.; Vásquez Salfate, Rodrigo; Dobson, Richard; Guigó, Roderic; Cogram, Pa (Frontiers Media S.A., 2017)
    • Brains from non-Alzheimer's individuals containing amyloid deposits accelerate Aβ deposition in vivo 
      Durán Aniotz, Claudia; Morales, Rodrigo; Moreno González, Inés; Hu, Ping Ping; Soto, Claudio (BioMed Central, 2013)
      Background: One of the main features of Alzheimer’s disease (AD) is the presence of Aβ deposits, which accumulate in the brain years before the onset of symptoms. We and others have demonstrated that cerebral Aβ-amyloidosis ...
    • Brain’s energy after stroke: from a cellular perspective toward behavior 
      Marimán Rivero, Juan José; Lorca, Enrique; Biancardi, Carlo; Burgos Concha, Pablo Ignacio; Álvarez Ruf, Joel (Frontiers Media, 2022)
      Stroke is a neurological condition that impacts activity performance and quality of life for survivors. While neurological impairments after the event explain the performance of patients in specific activities, the origin ...
    • BRCA1 and BRCA2 mutations in a South American population 
      Jara Sosa, Lilian; Ampuero Llanos, Sandra; Santibáñez, Eudocia; Seccia, Lorena; Rodríguez, Juan; Bustamante, Mario; Martínez, Víctor; Catenaccio, Alejandra; Lay-Son, Guillermo; Blanco Castillo, Rafael; Reyes, José Miguel (ELSEVIER, 2006-04-01)
      A sample of 64 high-risk breast and/or ovarian cancer families from Chile were screened for germline mutations in the coding sequences and exon-intron boundaries of BRCA1 (MIN no. 113705) and BRCA2 (MIN no. 600185) genes ...
    • BRDT is an essential epigenetic regulator for proper chromatin organization, silencing of sex chromosomes ... 
      Manterola Zúñiga, Marcia; Brown, Taylor M.; Young Oh, Min; Garyn, Corey; González, Bryan J.; Wolgemuth, Debra J. (Public Library Science, 2018)
      The double bromodomain and extra-terminal domain (BET) proteins are critical epigenetic readers that bind to acetylated histones in chromatin and regulate transcriptional activity and modulate changes in chromatin structure ...
    • Breaking paradigms in the treatment of psoriasis: Use of botulinum toxin for the treatment of plaque psoriasis 
      González, César; Franco, Manuel; Londoño, Ángela; Valenzuela Ahumada, Fernando (Wiley, 2020)
      Some studies have demonstrated that neurotransmitters are involved in the pathogenesis of numerous skin conditions, including psoriasis, addressing the close correlation between the skin and the central nervous system. ...
    • Breast biopsy with fine needle. Evaluation of a new method Biopsia de mama por aguja fina. Evaluación de ... 
      Maturana, Daniel; Contreras Contreras, Marlene Daniella (1993)
      A new methodology to obtain tissue samples from breast tumors through fine needle aspiration is described. This consists of a screwdriver like movement of the needle and continuous aspiration. The tissue is embedded in a ...
    • Breast cancer and combined oral contraceptives: Results from a multinational study 
      Berry, Geoffrey; MacLennan, Robert; Shearman, Rodney; Jelihovsky, Tatiana; Booth, Joan Cooper; Molina, Ramiro; Martinez, Luis; Salas, Oriana; Dabancens, Alfredo; Zhiheng, Chen; Yun, Tao; Wei, Hu Yong; Cuadros, Alvaro; Aristizabal, Nubia; Ebeling, K.; Nishan, P.; Kunde, D (1990)
      A collaborative, hospital-based case-control study was conducted at 12 participating centres in 10 countries. Based on data from personal interviews of 2, 116 women with newly diagnosed breast cancer and 12,077 controls, ...
    • Breast cancer epidemiology Epidemiología del cáncer de mama. 
      Ravera,; Medina,; López López, J. A. (1991)
      204 pts with breast cancer were compared to 208 pts of similar age, with pathologies other than cancer, to assess the frequency of biological and social factors related to breast cancer, in Chilean females. The pts with ...
    • Breast milk production and emotional state in mothers of very low birth weight infants 
      Wormald, Francisca; Tapia, José L.; Domínguez, Angélica; Cánepa, Paula; Miranda, Ángela; Torres, Gabriela; Rodríguez, Diana; Acha, Leila; Fonseca, Rossana; Ovalle, Natalia; Anchorena, M. Luisa; Danner, Max (Soc Argentina Pediatría, 2021)
      Introduction. There is little evidence regarding the influence of emotional variables on breastfeeding among mothers of very low birth weight infants (VLBWIs). The objective of this study was to measure breast milk ...
    • Breastfeeding as the sole source of milk for 6 months and adolescent bone mineral density 
      Blanco, E.; Burrows, Raquel; Reyes, M.; Lozoff, Betsy; Gahagan, S.; Albala Brevis, Cecilia (Springer London, 2017)
      © 2017, International Osteoporosis Foundation and National Osteoporosis Foundation. Summary: Little is known regarding the relationship between early life factors and bone mineral density (BMD). We found a positive association ...