Listar Producción científica por autor "Téllez, Wilma"

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    • Augmented uterine artery blood flow and oxygen delivery protect andeans from altitude-associated reductions in fetal growth 

      Julian, Colleen Glyde; Wilson, Megan J; López, Miriam; Yamashiro, Henry; Téllez, Wilma; Rodríguez, Armando; Bigham, Abigail W; Shriver, Mark D; Rodríguez, Carmelo; Vargas, Enrique; Moore, Lorna G (Am J Physiol Regul Integr Comp Physiol, 2009-02-20)
      Abstract. The effect of high altitude on reducing birth weight is markedly less in populations of high- (e.g., Andeans) relative to low-altitude origin (e.g., Europeans). Uterine artery (UA) blood flow is greater ...

    • Chronic mountain sickness and cor pulmonale La Paz-Bolivia (3,600-4,100 m) 

      Vargas P, Enrique; Villena, Mercedes; Salinas Salmón, Carlos E; Rodríguez, Armando; Téllez, Wilma; Bellido, Diva (Life on the Qinghai Tibetan plateau, 2007)
      Summary. Among the majority of inhabitants of La Paz-Bolivia (3,200-4,100 m.), the mild elevation seen in pulmonary artery pressure (PAP) has no clinical significance and is reversible on descent to lower altitude or with ...

    • Determinants of blood oxygenation during pregnancy in Andean and Europeas residents of high altitude 

      Vargas, Marco; Vargas, Enrique; Julian, Colleen Glyde; Armaza, J Fernando; Rodríguez, Armando; Téllez, Wilma; Niermeyer, Susan; Wilson, Megan; Parra, Esteban; Shriver, Mark; Moore, Lorna G (Am J Physiol Regul Integr Comp Physiol, 2007-07-02)
      High altitude decreases birth weight, but this effect is diminished in long vs. short-resident, high-altitude populations. We asked whether women from long vs. short-resident, high-altitude populations had higher arterial ...

    • Effect of high altitude on protein metabolism in Bolivian children 

      San Miguel, José L; Spielvogel, Hilde; Berger, Jacques; Araoz, Mauricio; Luján, Carmen; Téllez, Wilma; Cáceres, Esperanza; Gachon, Pierre; Coudert, Jean; Beaufrere, Bernard (High Altitude Medicine & Biology, 2002-08-01)
      Abstract. In Bolivia, malnutrition in children is a major health problem that may be caused by inadequate protein, energy, and micronutrient intake; exposure to bacterial and parasitic infections; and ...

    • Estudio en doble ciego del efecto de la almitrina sobre los enfermos portadores de eritrocitosis - patológica de altura 

      Villena, Mercedes; Vargas, Enrique; Guenard, Hervé; Nallar, Nancy; Téllez, Wilma; Spielvogel, Hilde (Instituto Boliviano de Biología de Altura, 1987)
      Resumen. La eritrocitosis patológica de altura (EPA) es una afección caracterizada por una disminución importante de la sensibilidad a la hipoxia y a la hipercapnea que conduce a una hipoxemia con eritrocitosis excesiva ...

    • Excessive polycythemia occurs in young high-altitude (3600 m) residents in the absence o lung disease 

      Vargas, Enrique; Villena, Mercedes; Salinas, Carlos; Rodríguez, Armando; Téllez, Wilma; Spielvogel, Hilde; Bellido, Diva (Health & height proceeding, 2002)
      Summary. Chronic mountain sickness is present in about 8% of the male population of La Paz. Our question was whether its principal diagnostic sign, excessive polycythemia (EP) without lung disease could be found already ...

    • Excessive polycythemia occurs in young high-altitude (3600 M) residents in the absence of lung disease 

      Vargas, Enrique; Villena, Mercedes; Salinas Salmón, Carlos E; Rodríguez, Armando; Spielvogel, Hilde; Téllez, Wilma; Bellido, Diva (High Altitude Medicine & Biology, 2002-04-18)
      Objective: Chronic Mountain Sickness occurs in , 8% of the La Paz population. We asked whether its primary diagnostic sign, excessive polycythemia (EP), occurred in youngeraged persons without lung disease. Methods: ...

    • Greater uterine artery blood flow during pregnancy in multigenerational (Andean) than shorter-term (European) high-altitude residents 

      Wilson, Megan J; López, Miriam; Vargas, Marco; Julian, Colleen Glyde; Téllez, Wilma; Rodríguez, Armando; Bigham, Abigail; Armaza, J Fernando; Niermeyer, Susan; Shriver, Mark; Vargas, Enrique; Moore, Lorna G (Am J Physiol Regul Integr Comp Physiol, 2007)
      Multigenerational (Andean) compared with shorter-term (European) high-altitude residents exhibit less hypoxia-associated reductions in birth weight. Because differences in arterial O2 content are not responsible, we ...

    • Maternal oxygen delivery is not related to altitude- and ancestry-associated differences in human fetal growth 

      Zamudio, Stacy; Postigo, Lucrecia; Illsley, Nicholas P; Rodríguez, Carmelo; Heredia, Gladys; Brimacombe, Michael; Echalar, Lourdes; Torricos, Tatiana; Téllez, Wilma; Maldonado, Iván; Balanza Erquicia, Elfride; Álvarez, Tatiana; Ameller, Julio; Vargas, Enrique (J Physiol, 2007-09-16)
      Fetal growth is reduced at high altitude, but the decrease is less among long-resident populations. We hypothesized that greater maternal uteroplacental O2 delivery would explain increased fetal growth in Andean natives ...

    • Otros criterios para una buena determinación de analitos en química sanguínea 

      Téllez, Wilma; Peñaloza, Rosario; Rojas, René (Instituto Boliviano de Biología de Altura, 1987)
      Resumen. Los métodos espectrofotométricos siguen siendo de elección para la mayoría de los análisis químico-clínicos debido a que son relativamente específicos, simples y requieren equipo menos costoso y especializado ...

    • Where the O2 goes to : preservation of human fetal oxygen delivery and consumption at high altitude 

      Postigo, Lucrecia; Heredia, Gladys; Illsley, Nicholas P; Torricos, Tatiana; Dolan, Caitlin; Echalar, Lourdes; Téllez, Wilma; Maldonado, Iván; Brimacombe, Michael; Balanza, Elfride; Vargas, Enrique; Zamudio, Stacy (The Journal of Physiology, 2009)
      Fetal growth is decreased at high altitude (> 2700 m). We hypothesized that variation in fetal O2 delivery might account for both the altitude effect and the relative preservation of fetal growth in multigenerational ...