Browsing by Title Facultad de Medicina

Now showing items 6131-6150 of 12970

    • Hydrogen peroxide removes TRPM4 current desensitization conferring increased vulnerability to necrotic cell death 
      Simon, Felipe; Leiva Salcedo, Elías; Armisen Yáñez, Ricardo; Riveros, Ana; Cerda, Oscar; Varela, Diego; Eguiguren, Ana Luisa; Olivero, Pablo; Stutzin Schottlander, Andrés (2010)
      Necrosis is associated with an increase in plasma membrane permeability, cell swelling, and loss of membrane integrity with subsequent release of cytoplasmic constituents. Severe redox imbalance by overproduction of reactive ...
    • Hydrolysis of synthetic pyrophosphoric esters by an isoenzyme of apyrase from Solanum tuberosum 
      Campo, Guillermo del; Puente, Javier; Valenzuela, M. Antonieta; Traverso Cori, A.; Cori, Osvaldo (1977)
      A highly purified isoenzyme of apyrase obtained from potatoes (Solanum tuberosum var. Pimpernel) exhibits a low specificity for the organic moiety of synthetic pyro- and triphosphates. Methyl di- and tri-phosphates were ...
    • Hydronephrosis classifications: Has UTD overtaken APD and SFU? A worldwide survey 
      Vallasciani, Santiago; Tur, Anna Bujons; Gatti, John; Machado, Marcos; Cooper, Christopher S.; Farrugia, Marie Klaire; Zhou, Huixia; El Anbari, Mohammed; López Egaña, Pedro José (Frontiers Media, 2021)
      Objective: To collect baseline information on the ultrasonographic reporting preferences. Method: A 13-multiple choice questionnaire was designed and distributed worldwide among pediatric urologists, pediatric surgeons, ...
    • Hydrophobic and coulombic interactions in the micellar binding of phenols and phenoxide ions 
      Bunton, Clifford A.; Sepulveda, Luis (1979)
      The transfer free energies of a series of substituted phenols and phenoxide ions from water to micelles of cetyltrimethylammonium bromide (CTABr) have been measured at high and low pH. The contribution of each methylene ...
    • Hydroxyestradiols and methoxyestradiols as endogenous factors associated to physiological and physiopathological ... 
      Parada Bustamante, Alexis; Orihuela, Pedro A.; Molina, Cristián; Cárdenas, Hugo; Reuquén, Patricia; Valencia, Cecilia; Rincón, Ramiro (Nova Science Publishers, 2013)
      Estradiol (E2) is a steroidal hormone generated by the conversion of testosterone via the p450 aromatase enzymatic complex. The E2 physiological actions are mainly mediated by its interaction with intracellular receptors ...
    • Hydroxyl radical activation of a Ca2+-sensitive nonselective cation channel involved in epithelial cell necrosis 
      Simon, Felipe; Varela, Diego; Eguiguren, Ana Luisa; Díaz, Laín F.; Sala, Francisco; Stutzin Schottlander, Andrés (2004)
      In a previous work the involvement of a fenamate-sensitive Ca 2+-activated nonselective cation channel (NSCC) in free radical-induced rat liver cell necrosis was demonstrated (5). Therefore, we studied the effect of radical ...
    • Hydroxytyrosol and cytoprotection: a projection for clinical interventions 
      Echeverría González, Francisca; Ortíz, Macarena; Valenzuela Báez, Rodrigo; Videla Cabrera, Luis (MDPI AG, 2017)
      Hydroxytyrosol (HT) ((3,4-Dihydroxyphenyl) ethanol) is a polyphenol mainly present in extra virgin olive oil (EVOO) but also in red wine. It has a potent antioxidant effect related to hydrogen donation, and the ability to ...
    • Hydroxytyrosol prevents reduction in liver activity of Delta - 5 and Delta - 6 desaturases, oxidative stress, ... 
      Valenzuela Báez, Rodrigo; Echeverría González, Francisca; Ortíz, Macarena; Rincón Cervera, Miguel Ángel; Espinosa Escalona, Berta; Hernández Rodas, María Catalina; Illesca, Paola; Valenzuela Bonomo, Carlos; Videla Cabrera, Luis (Biomed Central Ltd., 2017)
      Background: Eicosapentaenoic acid (EPA, C20:5n-3), docosahexaenoic acid (DHA, C22:6n-3) and arachidonic acid (AA, C20:4n-6) are long-chain polyunsaturated fatty acids (LCPUFAs) with relevant roles in the organism. EPA and ...
    • Hygiene habits and carriers in families with a child who has had typhoid fever. 
      Alvarez Alvarez, Miguel Adrián; Wurgaft,; Espinoza,; Araya Araya, Fernando; Figueroa Figueroa, Mónica (1992)
      The relationship between asymptomatic shedding of bacterial enteropathogens and the hygiene habits of families who have had a child with typhoid fever (TF) are investigated. The sample was made up of 80 families: 40 families ...
    • Hygiene habits at the family level and typhoid Los hábitos de higiene a nivel familiar y fiebre tifoidea. 
      Alvarez Alvarez, Miguel Adrián; Espinoza,; Figueroa Figueroa, Mónica; Diaz, Eloisa; Wurgaft, (1991)
      We studied the relation of habits related to the fecal-oral cycle and incidence of typhoid fever in children attending the school system for 1 to 2 years and in their families. The goal was to identify a predictor to detect ...
    • Hyperandrogenism Decreases GRP78 Protein Level and Glucose Uptake in Human Endometrial Stromal Cells 
      Rosas Chuñil, Carlos; Oróstica Arévalo, María Lorena; Poblete, Cristian; Carvajal Gavilán, Rodrigo; Gabler Neale, Fernando; Romero Osses, Carmen; Lavandero González, Sergio; Vega Blanco, María Margarita (SAGE, 2016)
      Background: Women with polycystic ovary syndrome (PCOS) exhibit a low fertility by chronic hyperandrogenemia. Different evidence have shown that androgens could regulate the endoplasmic reticulum (ER) homeostasis and glucose ...
    • Hyperandrogenism in Adolescent Girls: Relationship with the Somatotrophic Axis 
      Hernández Cárdenas, María Isabel; Gaete Vásquez, Ximena; López Cuevas, Patricia; Villarroel Quintana, Claudio; Cavada Chacón, Gabriel; Ávila Alarcón, Rebeca; Iñíguez Vila, Germán; Cassorla Goluboff, Fernando (Karger, 2016)
    • Hyperglycemia in postmenopausal women screened for the metabolic syndrome is associated to increased sexual ... 
      Chedraui, Peter; Pérez López, Faustino R.; Blumel, Juan E.; Hidalgo, Luis; Barriga, José (2009)
      Background. Postmenopausal metabolic changes increase cardiovascular risk and impair quality of life (QoL). Despite this, few reports have addressed the association of these changes with female sexuality. Objective. To ...
    • Hyperhomocysteinemia and endothelial function in young subjects: Effects of vitamin supplementation 
      Hirsch Birn, Sandra; Maza Cave, María Pía de la; Petermann, Margarita M.; Barrera, Gladys; Gattas, Vivien; Escobar, Edgardo; Yañez, Paulina; Glasinovic, Andrea; Bunout Barnett, Daniel (2002)
      Background: The relationship between hyperhomocysteinemia and cardiovascular disease has not been totally elucidated. Hypothesis: The study aimed to verify the association between hyperhomocysteinemia and endothelial ...
    • Hyperhomocysteinemia in healthy young men and elderly men with normal serum folate concentration is not ... 
      Hirsch Birn, Sandra; Ronco Macchiavello, Ana María; Vásquez, Marcela; Maza Cave, María Pía de la; Garrido, Argelia; Barrera, Gladys; Gattas, Vivien; Glasinovic, Andrea; Leiva, Laura; Bunout Barnett, Daniel (2004)
      The mechanism by which homocysteine (Hcy) causes endothelial dysfunction is probably mediated by oxidative stress. The aim of this study was to evaluate the effect of oxidative stress on endothelial function in young and ...
    • Hypermobility and Ehlers-Danlos syndromes: Clinical aspects and patient's quality of life 
      Bravo Silva, Jaime (Centro de Estudios Académicos en Neuropsicología, 2016)
      There is an urgent need to increase the Joint Hypermobility Syndrome (JHS) awareness, that for most authors is the same as the Ehlers-Danlos Hypermobility type (formerly called EDS type III) that is a congenital, very ...
    • Hyperprolactinemia and galactorrhea: Spontaneous versus iatrogenic hypothyroidism 
      Serrano Contreras, Patricio; Generini, Gladys; Michelsen, Harold; Pumarino, Hugo; Campino, Carmen (1981)
      Although hyperprolactinemia and galactorrhea occur in primary hypothyroidism, factors influencing their presence are not well established. To further define these factors, the duration of illness and serum levels of PRL ...
    • Hypertension and coronary heart disease 
      Escobar, S. (2002)
      The association of hypertension and coronary heart disease is a frequent one. There are several pathophysiologic mechanisms which link both diseases. Hypertension induces endothelial dysfunction, exacerbates the atherosclerotic ...
    • Hypertension and the risk of breast cancer in chilean women: A case-control study 
      Pereira, Ana; Garmendia, Maria Luisa; Alvarado, Maria Elena; Albala Brevis, Cecilia (Asian Pacific Organization for Cancer Prevention, 2012)
      Background: Breast cancer is the most common cancer in women worldwide. Although different metabolic factors have been implicated in breast cancer development, the relationship between hypertension and breast cancer has ...
    • Hypnoanalgesia and the study of pain experience: From Cajal to modern neuroscience 
      Lanfranco, Renzo C.; Canales-Johnson, Andre´s; Huepe, David (Frontiers Research Foundation, 2014)
      Santiago Ramo´n y Cajal (1852-1934) did not only contribute to neurobiology and neurohistology. At the end of the 19th century, he published one of the first clinical reports on the employment of hypnotic suggestion to ...